Fix some alignment issues

* Use GRAPHENE_ALIGN16 to ensure that GtkSnapshotState size is a multiple of 16 * Use G_STATIC_ASSERT instead of g_return_val_if_fail to make the wrong size (if it turns out to be wrong) be a compile-time erorr instead of a runtime one
Merge branch 'lrn/gtk4warnings' into 'master'
2018-06-11 12:43:14 +00:00 · 2018-06-10 23:14:42 +00:00 · 2018-06-10 23:05:50 +00:00 · 2018-06-10 22:05:12 +00:00 · 2018-06-10 21:21:27 +00:00 · 2018-06-10 21:21:25 +00:00
1608 changed files with 165226 additions and 148732 deletions
@@ -0,0 +1,82 @@
+stages:
+  - build
+  - flatpak
+  - deploy
+
+.cache-paths: &cache-paths
+  paths:
+    - _ccache/
+    - subprojects/gdk-pixbuf/
+    - subprojects/glib/
+    - subprojects/graphene/
+    - subprojects/libepoxy/
+    - subprojects/pango/
+
+fedora-x86_64:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v1
+  stage: build
+  script:
+    - bash -x ./.gitlab-ci/test-docker.sh
+  artifacts:
+    when: on_failure
+    name: "gtk-${CI_COMMIT_REF_NAME}"
+    paths:
+      - "${CI_PROJECT_DIR}/_build/meson-logs"
+  cache:
+    key: "$CI_JOB_NAME"
+    <<: *cache-paths
+
+.mingw-defaults: &mingw-defaults
+  stage: build
+  tags:
+    - win32
+  script:
+    - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
+    - C:\msys64\usr\bin\bash -lc "bash -x ./.gitlab-ci/test-msys2.sh"
+  cache:
+    key: "%CI_JOB_NAME%"
+    <<: *cache-paths
+
+msys2-mingw32:
+  variables:
+    MSYSTEM: "MINGW32"
+    CHERE_INVOKING: "yes"
+  <<: *mingw-defaults
+
+.flatpak-defaults: &flatpak-defaults
+  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
+  stage: flatpak
+  artifacts:
+    paths:
+      - "${APPID}-dev.flatpak"
+    expire_in: 1 day
+  script:
+    - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
+
+flatpak:demo:
+  variables:
+    APPID: org.gtk.Demo
+  <<: *flatpak-defaults
+
+flatpak:widget-factory:
+  variables:
+    APPID: org.gtk.WidgetFactory
+  <<: *flatpak-defaults
+
+pages:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v1
+  stage: deploy 
+  script:
+    - meson -Ddocumentation=true _build .
+    - ninja -C _build
+    - ninja -C _build gdk4-doc gsk4-doc gtk4-doc
+
+    - mkdir -p public/
+    - mv _build/docs/reference/gtk/html/ public/gtk/
+    - mv _build/docs/reference/gdk/html/ public/gdk/
+    - mv _build/docs/reference/gsk/html/ public/gsk/
+  artifacts:
+    paths:
+      - public
+  only:
+    - master
@@ -0,0 +1,80 @@
+FROM fedora:28
+
+RUN dnf -y install \
+    adwaita-icon-theme \
+    atk-devel \
+    at-spi2-atk-devel \
+    avahi-gobject-devel \
+    cairo-devel \
+    cairo-gobject-devel \
+    ccache \
+    colord-devel \
+    cups-devel \
+    desktop-file-utils \
+    elfutils-libelf-devel \
+    fribidi-devel \
+    gcc \
+    gcc-c++ \
+    gdk-pixbuf2-devel \
+    gdk-pixbuf2-modules \
+    gettext \
+    git \
+    glib2-devel \
+    glibc-devel \
+    glibc-headers \
+    gobject-introspection-devel \
+    graphene-devel \
+    gstreamer1-devel \
+    gstreamer1-plugins-good \
+    gstreamer1-plugins-bad-free-devel \
+    gstreamer1-plugins-base-devel \
+    gtk-doc \
+    iso-codes \
+    itstool \
+    json-glib-devel \
+    libattr-devel \
+    libepoxy-devel \
+    libffi-devel \
+    libmount-devel \
+    librsvg2 \
+    libselinux-devel \
+    libXcomposite-devel \
+    libXcursor-devel \
+    libXcursor-devel \
+    libXdamage-devel \
+    libXfixes-devel \
+    libXi-devel \
+    libXinerama-devel \
+    libxkbcommon-devel \
+    libXrandr-devel \
+    libXrender-devel \
+    libxslt \
+    mesa-dri-drivers \
+    mesa-libEGL-devel \
+    mesa-libwayland-egl-devel \
+    ninja-build \
+    pango-devel \
+    pcre-devel \
+    python3 \
+    python3-pip \
+    python3-wheel \
+    redhat-rpm-config \
+    sassc \
+    systemtap-sdt-devel \
+    vulkan-devel \
+    wayland-devel \
+    wayland-protocols-devel \
+    which \
+    xorg-x11-server-Xvfb \
+ && dnf clean all
+
+RUN pip3 install meson
+
+ARG HOST_USER_ID=5555
+ENV HOST_USER_ID ${HOST_USER_ID}
+RUN useradd -u $HOST_USER_ID -ms /bin/bash user
+
+USER user
+WORKDIR /home/user
+
+ENV LANG C.UTF-8
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -e
+
+appid=$1
+
+builddir=app
+repodir=repo
+
+flatpak-builder \
+        --stop-at=gtk \
+        ${builddir} \
+        build-aux/flatpak/${appid}.json
+
+flatpak-builder \
+        --run ${builddir} build-aux/flatpak/${appid}.json \
+        meson \
+                --prefix /app \
+                --libdir /app/lib \
+                --buildtype debug \
+                -Dx11-backend=true \
+                -Dwayland-backend=true \
+                -Dprint-backends=file \
+                -Dbuild-tests=false \
+                -Dbuild-examples=false \
+                -Dintrospection=false \
+                -Ddemos=true \
+                _build .
+
+flatpak-builder \
+        --run ${builddir} build-aux/flatpak/${appid}.json \
+        ninja -C _build install
+
+flatpak-builder \
+        --finish-only \
+        --repo=${repodir} \
+        ${builddir} \
+        build-aux/flatpak/${appid}.json
+
+flatpak build-bundle \
+        ${repodir} \
+        ${appid}-dev.flatpak \
+        --runtime-repo=https://flathub.org/repo/flathub.flatpakrepo \
+        ${appid}
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+TAG="registry.gitlab.gnome.org/gnome/gtk/master:v1"
+
+sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
+    --file "Dockerfile" .
+sudo docker run --rm --security-opt label=disable \
+    --volume "$(pwd)/..:/home/user/app" --workdir "/home/user/app" \
+    --tty --interactive "${TAG}" bash
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -e
+
+srcdir=$(pwd)
+
+mkdir -p _ccache
+export CCACHE_BASEDIR="$(pwd)"
+export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
+
+ccache --zero-stats
+ccache --show-stats
+export CCACHE_DISABLE=true
+meson \
+        -Dx11-backend=true \
+        -Dwayland-backend=true \
+        -Dbroadway-backend=true \
+        -Dvulkan=yes \
+        _build $srcdir
+unset CCACHE_DISABLE
+
+cd _build
+
+ninja
+ccache --show-stats
+
+xvfb-run -a -s "-screen 0 1024x768x24" \
+    meson test \
+        --print-errorlogs \
+        --suite=gtk+ \
+        --no-suite=gtk+:gsk \
+        --no-suite=gtk+:a11y
@@ -0,0 +1,53 @@
+#!/bin/bash
+
+set -e
+
+if [[ "$MSYSTEM" == "MINGW32" ]]; then
+    export MSYS2_ARCH="i686"
+else
+    export MSYS2_ARCH="x86_64"
+fi
+
+# Update everything
+pacman --noconfirm -Suy
+
+# Install the required packages
+pacman --noconfirm -S --needed \
+    base-devel \
+    git \
+    mingw-w64-$MSYS2_ARCH-toolchain \
+    mingw-w64-$MSYS2_ARCH-ccache \
+    mingw-w64-$MSYS2_ARCH-pkg-config \
+    mingw-w64-$MSYS2_ARCH-gobject-introspection \
+    mingw-w64-$MSYS2_ARCH-meson \
+    mingw-w64-$MSYS2_ARCH-adwaita-icon-theme \
+    mingw-w64-$MSYS2_ARCH-atk \
+    mingw-w64-$MSYS2_ARCH-cairo \
+    mingw-w64-$MSYS2_ARCH-gdk-pixbuf2 \
+    mingw-w64-$MSYS2_ARCH-glib2 \
+    mingw-w64-$MSYS2_ARCH-graphene \
+    mingw-w64-$MSYS2_ARCH-json-glib \
+    mingw-w64-$MSYS2_ARCH-libepoxy \
+    mingw-w64-$MSYS2_ARCH-pango \
+    mingw-w64-$MSYS2_ARCH-fribidi \
+    mingw-w64-$MSYS2_ARCH-gst-plugins-bad \
+    mingw-w64-$MSYS2_ARCH-shared-mime-info
+
+mkdir -p _ccache
+export CCACHE_BASEDIR="$(pwd)"
+export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
+
+# Build
+ccache --zero-stats
+ccache --show-stats
+export CCACHE_DISABLE=true
+meson \
+    -Denable-x11-backend=false \
+    -Denable-wayland-backend=false \
+    -Denable-win32-backend=true \
+    -Dvulkan=no \
+    _build
+unset CCACHE_DISABLE
+
+ninja -C _build
+ccache --show-stats
@@ -0,0 +1,36 @@
+## Steps to reproduce
+
+ 1. ...
+ 2. ...
+ 3. ...
+
+<!--
+  You should try and reproduce with the demos applications available
+  under the `demos` directory, or the test programs in the `tests` directory.
+  Alternatively, please attach a *small and self-contained* example that
+  exhibits the issue.
+-->
+
+## Current behavior
+<!--
+  Please describe the current behaviour
+-->
+
+## Expected outcome
+<!--
+  Please describe the expected outcome
+-->
+
+## Version information
+<!--
+ - Which version of GTK+ you are using
+ - What operating system and version
+  - For Linux, which distribution
+ - If you built GTK+ yourself, the list of options used to configure the build
+-->
+
+## Additional information
+<!--
+ - Screenshots or screen recordings are useful for visual errors
+ - Please report any warning or message printed on the terminal
+-->
@@ -0,0 +1,34 @@
+## Steps to reproduce
+
+ 1. ...
+ 2. ...
+ 3. ...
+
+<!--
+  You should try and reproduce with the demos applications available
+  under the `demos` directory, or the test programs in the `tests` directory.
+  Alternatively, please attach a *small and self-contained* example that
+  exhibits the issue.
+-->
+
+## Version information
+<!--
+ - Which version of GTK+ you are using
+ - What operating system and version
+  - for Linux, which distribution
+ - If you built GTK+ yourself, the list of options used to configure the build
+-->
+
+## Warnings
+<!--
+ - If the application generates warning messages before crashing please
+   report them here
+-->
+
+## Backtrace
+<!--
+ - Attaching a stack trace obtained using GDB is appreciated; follow the
+   instructions on the wiki:
+
+   https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/GettingTraces
+-->
@@ -1,30 +1,41 @@
 If you want to hack on the GTK+ project, you'll need to have the development
 tools appropriate for your operating system, including:

-	- Python (2.7 or 3.x)
-	- Meson
-	- Ninja
-	- Gettext (19.7 or newer)
-	- a C99 compatible compiler
+ - Python 3.x
+ - Meson
+ - Ninja
+ - Gettext (19.7 or newer)
+ - a C99 compatible compiler

 Up-to-date instructions about developing GNOME applications and libraries
 can be found here:

-        https://developer.gnome.org
+ * https://developer.gnome.org

-Information about using git with GNOME can be found here:
+Information about using GitLab with GNOME can be found here:

-        https://wiki.gnome.org/Git
+ * https://wiki.gnome.org/GitLab

 In order to get Git GTK+ installed on your system, you need to have the
 required versions of all the GTK+ dependencies; typically, this means a
-recent version of GLib, Cairo, Pango, and ATK.
+recent version of GLib, Cairo, Pango, and ATK, as well as the platform
+specific dependencies for the windowing system you are using (Wayland, X11,
+Windows, or macOS).

-**Note**: if you plan to push changes to back to the master repository and
-have a GNOME account, you want to use the following instead:
+You should start by forking the GTK repository from the GitLab web UI, and
+cloning from your fork:
+
+```ssh
+$ git clone https://gitlab.gnome.org/yourusername/gtk.git
+$ cd gtk
+```
+
+**Note**: if you plan to push changes to back to the main repository and
+have a GNOME account, you can skip the fork, and use the following instead:

 ```sh
-$ git clone ssh://<username>@git.gnome.org/git/gtk+
+$ git clone git@gitlab.gnome.org:GNOME/gtk.git
+$ cd gtk
 ```

 To compile the Git version of GTK+ on your system, you will need to
@@ -32,9 +43,23 @@ configure your build using Meson:

 ```sh
 $ meson _builddir .
+$ cd _builddir
+$ ninja
 ```

-For information about submitting patches and pushing changes to Git, see the
-`README.md` and `README.commits` files. In particular, don't, under any
-circumstances, push anything to Git before reading and understanding
-`README.commmits`.
+**Note**: For information about submitting patches and pushing changes
+to Git, see the `README.md` and `README.commits` files. In particular,
+don't, under any circumstances, push anything to Git before reading and
+understanding `README.commmits`.
+
+Typically, you should work on your own branch:
+
+```sh
+$ git checkout -b your-branch
+```
+
+Once you've finished working on the bug fix or feature, push the branch
+to the Git repository and open a new merge request, to let the GTK
+maintainers review your contribution. The [CODE-OWNERS](./docs-CODE-OWNERS)
+document contains the list of core contributors to GTK and the areas for
+which they are responsible.
@@ -0,0 +1,903 @@
+Overview of Changes in GTK+ 2.0.0
+=================================
+
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, Darin Adler]
+* Build fixes [Anders Carlsson, Tor Lillqvist, Manish Singh]
+* Bug fixes. [Thomas Leonard, Owen Taylor]
+
+Overview of Changes in GTK+ 2.0.0 rc1
+=====================================
+
+* GtkTreeView fixes [Kristian Rietveld, Jonathan Blandford, Richard Hult]
+* Text widget fixes [Havoc Pennington]
+* Efficiency fixes when using Xft [Owen Taylor]
+* Key handling fixes and other fixes for Win32 [Hans Breuer, Tor Lillqvist]
+* Try to fix key handling without XKEYBOARD extension [Owen]
+* Documentation fixes and improvements 
+  [Matthias Clasen, Alexey Malyshev, Akira Tagoh, Vitaly Tishkov]
+* Widget drawing improvements [Soeren Sandmann]
+* Allow cycling between multiple menu bars with <Control>Tab [Owen]
+* Try to build libraries with only shared library dependencies on Xft to 
+  deal with transition to Xft2 [Owen]
+* Portability fixes [Owen, Miroslaw Dobrzanski-Neumann]
+* Don't use red as the default cursor color [Owen]
+* Bug fixes, bug fixes, bug fixes.
+
+Other contributors: Darin Adler, Jacob Berkman, Kevin Breit, Hans Breuer, 
+  Anders Carlsson, Damon Chaplin, Finlay Dobbie, Jody Goldberg,
+  Andreas J. Guelzow, Scott Guilbeaux, Vlad Harchev, James Henstridge,
+  Tim Janik, Satyajit Kanungo, Charles Kerr, Sergey Kuzminov, Miles Lane, 
+  Alexander Larsson, Paolo Maggi, Skip Montaro, Jan Mynarik, Sven Neumann, 
+  Padraig O'Briain, Narayani Pattipati, Mark Patton, Havoc Pennington, 
+  Ettore Perazzoli, Guillermo S. Romero, Manish Singh, Morten Welinder
+
+Overview of Changes in GTK+ 1.3.15
+==================================
+
+* New stock and improved icon images
+  [Tuomas Kuosmanen, Jakub Steiner, Anders Carlsson]
+* Widget drawing improvements for check and radio buttons,
+  spinbuttons [Soeren Sandmann]
+* Clean up module search path algorithm, use GTK_PATH [Owen Taylor]
+* Add GtkSetting for font name. [Richard Hestilow]
+* Much improved key matching code, accelerators work independent
+  of group [Owen]
+* Make mnemonics work for embedded GtkPlug widgets [Owen]
+* Keynav improvements for GtkTreeView [Kristian Rietveld]
+* Fix gtk_tree_view_scroll_to_cell() [Jonathan Blandford]
+* Rename gtk_tree_view_get_iter_root() and gtk_tree_path_new_root()
+  to gtk_tree_view_get_iter_first() and gtk_tree_path_new_first(),
+  add compatibility macros.
+* GtkTreeView bug fixes [Kristian, Anders, Damon Chaplin]
+* GtkTextView bug fixes [Havoc Pennington]
+* Pad class structures for future binary compatibility [Owen]
+* Tutorial improvements [Sven Neumann, Matthias Clasen]
+* Fixes for MULTIPLE selection target [Gregory Merchan, Owen]
+* Fix problems with initial widget size [Owen]
+* AIX compilation fixes [Miroslaw Dobrzanski-Neumann]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Miscellaneous bug fixes
+
+Other contributors: David L. Cooper, Eric Fischer, Jody Goldberg, 
+  Satajyit Kanungo, Thomas Leonard, Mark Patton, Manish Singh, 
+  Nicolas Setton
+
+Overview of Changes in GTK+ 1.3.14
+==================================
+
+* Keyboard focus improvements [Owen Taylor]
+* Code cleanup [Matthias Clasen, Manish Singh, Darin Adler]
+* Fix accidentally exported variables [Mark McLoughlin]
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, John Harper, Darin]
+* Default to yellow tooltips [Owen]
+* RC file fixes for reloading, priorities [Owen, Matthias]
+* GtkMenu behavior improvements and bug fixes [Owen, Arnaud Charlet]
+* GtkTextView fixes [Havoc Pennington, Daniel Elstner, Dennis Bjorklund]
+* Improve keynav for paned widgets, tooltips, spin buttons, notebooks, 
+  scrolled windows [Soeren Sandmann, Padraig, Owen]
+* Add Emacs/Default key themes [Owen]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Ethiopic input methods [Daniel Yacob]
+* Opaque paned window resizing [Soeren]
+* Tweak table expansion behavior [Tim Janik]
+* Fix GtkCalendar focus drawing [Bill Haneman]
+* Allow themeable cursor thickness [Bill]
+* Start of fixing of tutorial for GTK+-2.0 [Matthias]
+* Add a ::adjust-bounds signal to GtkRange to allow spreadsheet style
+  scrollbars. [Jody Goldberg]
+* Add the ability to turn on multiple selection for GtkFileSel [Manish]
+* Bug fixes
+
+Other contributors: Jacob Berkman, Padraig O'Briain, Anders Carlsson,
+ Johan Dahlin, Richard Hult, Stefan Kost, Alex Larsson, Thomas Leonard,
+ Paolo Maggi, Alexey Malyshev, Federico Mena Quintero, Skip Montaro,
+ Sven Neumann, Havoc Pennington, Laszlo Peter, Christian Rose, Joe Shaw,
+ Kevin Vandersloot,  Morten Welinder, Peter Williams
+
+Overview of Changes in GTK+ 1.3.13
+==================================
+
+* Tree view fixes. [Kristian Rietveld, Jonathan Blandford, Anders Carlsson]
+* Tree view support for low-vision themes [Bill Haneman]
+* Text view bug fixes. [Havoc Pennington]
+* Win32 fixes and improvements.  [Tor Lillqvist, Hans Breuer, 
+  Archaeopteryx Software]
+* Documentation improvements [Matthias Clasen, Havoc Pennington]
+* Accelerate alpha compositing using RENDER extension if present,
+  and optimize the non-RENDER case a lot. [Owen Taylor]
+* Add support for "optional keybindings" (action signal returns FALSE) [Owen]
+* Fixed the infamous changing directory deletes filename bug 
+  [Owen and a cast of thousands]
+* Add mouse cursor hiding for text widgets [Anders Carlsson]
+* Simple Hangul input module [Yusuke Tabata]
+* Removed the scary startup warning.
+* GdkPixbuf pixel handling fixes [Owen, Michael Hore, Jim Cape]
+* Converted GtkFileSelection and GtkFontSelection to use GtKTreeView widgets
+  instead of the deprecated GtkCList [Owen]
+* gtkhsv.h was installed by mistake, fixed that. [reported by Ross Burton]
+* gdk_pixbuf_render_to_drawable() now also handles alpha pixbufs.
+* Made Gtkimage draw GtkPixmap, GtkImage, GdkPixbuf insensitive, prelighted,
+  etc. [Havoc, Owen]
+* Marked gtk_item_factory_path_from_widget() G_CONST_RETURN. [Matt Wilson]
+* gtk_image_menu_item_new_from_stock() now falls back to
+  new_with_mnemonic, for consistency with gtk_button_new_from_stock()
+  [Havoc Pennington]
+* GdkModifierType is now consistently used for modifier mask parameters
+  [Mark Patton]
+* gtk_widget_set_accel_path() is now publically exported.
+
+Other contributors: Darin Adler, Jeffrey Baker, Damon Chaplin, Brian Cameron, 
+  Murray Cumming, James Henstridge, Jacob Berkman, Arnaud Charlet, Jeff Franks, 
+  Jeff Garzik, Jody Goldberg, Diego Gonzalez, Melvin Hadasht, Raja Harinath, 
+  Tim Janik, Mike Kestner, Mathieu Lacage, Alex Larsson, Ryan Lovett, 
+  Mark McLoughlin, Sven Neumann, Padraig O'Briain, Xavier Ordoquy, Chris Phelps, 
+  Detlef Reichl, Guillermo S. Romero, Federico Mena Quintero, Manish Singh,
+  HideToshi Tajima, Vitaly Tishkov, Jon Trowbridge, Sergey Vlasov.
+
+Overview of Changes in GTK+ 1.3.12
+==================================
+
+* Fix problems with PNG saving [Michael Natterer]
+* Cleanups of deprecated usages [Sebastian Wilhelmi]
+* Win32 fixes [Tor Lillqvist]
+* Documentation improvements [Matthias Clasen, Havoc Pennington, 
+  Vitaly Tishkov]
+* Frame buffer port fixes [Manish Singh]
+* GtkTextView bug fixes [Havoc Pennington, Chris Phelps]
+* Menu behavior improvements [Kristian Rietveld]
+* Make focus line width configurable, focus color work on 
+  dark themes. [Bill Haneman, Owen Taylor]
+* Add state argument to gtk_paint_focus() [Bill]
+* Added incremental revalidation to tree view, for better apparent speed 
+  [Jonathan Blandford]
+* Remove useless gtk_tree_view_column_cell_event() [Jonathan]
+* Display XIM status in a separate window [HideToshi Tajima]
+* Add GDK_DEBUG=nograbs to disable pointer, keyboard grabs [Jacob Berkman]
+* Add menu of Unicode control characters to GtkEntry, GtkTextView 
+  [Dov Grobgeld, Havoc]
+* Pass key releases along to input methods [Owen]
+* Many bug fixes
+
+Other contributors: Darin Adler, Fabrice Bellet, Chris Blizzard, 
+  Hans Breuer, Anders Carlsson, Damon Chaplin, Murray Cumming, Jeff Franks, 
+  James Henstridge, Tim Janik, Alex Larsson, George Lebl, Kjartan, Maraas, 
+  Sven Neumann, Seth Nickell, Padraig O'Briain, Soeren Sandmann, Manish Singh, 
+  Matt Wilson
+
+Overview of Changes in GTK+ 1.3.11
+==================================
+
+* Massive rework of accelerator API and implementation (Tim Janik)
+* Major fixes to resizing and redrawing to eliminate hysteresis
+  and optimize. (Owen Taylor, Soeren Sandmann)
+* Make many widgets NO_WINDOW to improve appearance and reduce
+  drawing overhead (Owen)
+* Text view fixes (Havoc Pennington)
+* Make child widgets in GtkTextView work (Havoc)
+* GtkTreeModelSort fixage (Jonathan Blandford, Kristian Rietveld)
+* Clean up GtkTreeView drag and drop support (Owen)
+* Misc tree view fixes and improvements (Jonathan, Kristian, Anders, Matt Wilson)
+* Add gtk_window_get/set_focus(), gtk_window_set_default() as public
+  functions (Owen, Damian Ivereigh)
+* Fixes to GtkPlug/GtkSocket (Michael Meeks, Owen)
+* Change button ordering in standard dialogs to correspond to 
+  GNOME usability project proposal (Gregory Merchan)
+* Add support for context sensitivity in input methods (Owen)
+* Hook up gtk_im_context_set_use_preedit() (Hidetoshi Tajima)
+* Fix gdk_window_scroll() and other aspects of big windows (Owen)
+* Remove need for X connection for class initialization (Jacob Berkman)
+* Propagate key events to parents of focused widget (Owen)
+* Don't export normal GTK+ marshalers, export deprecated compat marshalers (Owen)
+* Many Win32 Fixes and improvements (Hans Breuer, Tor Lillqvist)
+* Bug and documentation fixing (Matthias Clasen, Anders Carlsson,
+  Jacob Berkman, others.)
+
+Other Contributors:
+  Darin Adler, Marius Andreiana, Erwann Chenede, Murray Cumming, Janet Davis, 
+  Daniel Egger, Daniel Elstner, Jeff Franks, Alex Larsson, George Lebl, 
+  Sergey Kuzminov, Eric Lemings, Arkadiusz Miskiewicz, Padraig O'Briain, Sven Neumann, 
+  Kristian Rietveld, Nicolas Setton, Manish Singh,  Vitaly Tishkov, Sebastian Wilhelmi, 
+  Michael Natterer
+
+Overview of Changes in GTK+ 1.3.10
+==================================
+
+* GtkTextView fixes [Havoc Pennington]
+* GtkTreeView fixes and improvements [Jonathan Blandford, Kristian,
+  Manish Singh, Joshua Pritikin, Oleg Maiboroda, James Henstridge]
+* gtkdemo improvements [Kristian Rietveld]
+* Drag and drop fixes to generic code and widgets 
+  [Owen Taylor, Damian Ivereigh]
+* Documentation improvement [Havoc Pennington, Matthias Clasen]
+* Spelling fixes [Jacob Berkman]
+* Move signals to the GtkEditable interface [Kristian]
+* Further stock image improvements [Jakub Steiner]
+* Support text chunks for the PGN loader, add gdk_pixbuf_get_option()
+  [Sven Neumann]
+* Rename gdk_pixbuf_new_from_stream back to new_from_inline [Owen]
+* Automatically call setlocale(), unless explicitly disabled [Owen]
+* Property addition to various widgets [Michael Meeks, Owen]
+* Support building with automake-1.4 [James]
+* Make GtkRadioButton groups act as a single focus point [Owen]
+* Move gdk_window_lookup etc. to be cross-platform [Matthias]
+* Draw spinbuttons variably sized [Kristian]
+* Separate GdkAtom out from X atoms for compatibility with future
+  multihead changes [Owen]
+* Require gdk_threads_init() to be explicitly called instead
+  of piggybacking off of g_thread_init(). [Owen]
+* Improvements to text-view/label/entry popup menus [Damian, Jacob, Owen]
+* Bug fixes and cleanup [Matthias, others]
+
+Other Contributors:
+  Mark McLoughin, Mikael Hermansson, Soeren Sandmann, Anders Carlsson,
+  Tim Janik, Murray Cumming, Hidetoshi Tajima, Padraig O'Briain, 
+  Hans Breuer, Vitaly Tishkov, Dov Grobgeld
+ 
+
+Overview of Changes in GTK+ 1.3.9
+=================================
+
+* Add editable text cells to GtkTreeView.
+  Keynav, drawing fixes in GtkTreeView [Jonathan Blandford]
+* Text widget no longer always has a \n in it. [Havoc Pennington]
+* Text widget bug fixes [Havoc, Dov Grobgeld, Hidetoshi Tajima]
+* Allow -1 for width/height in gdk_pixbuf_render_*(). [Matthias Clasen]
+* Minor fix for major resizing problems in recent releases [Owen Taylor]
+* Restore ability to set _set properties to TRUE for 
+  GtkCellRendererText, GtkTextTag [Owen]
+* Cursor drawing improvements [Owen]
+* Win32 fixes [Hans Breuer]
+* Mark various functions as deprecated or private.
+* Misc bug fixes, portability fixes, and cleanups.
+
+Other Contributors: 
+ Vitaly Tishkov, Christian Rose, Frank Belew, Jeff Franks, Sven Neumann,
+ Kristian Rietveld, Vitaly Tishkov, Joshua N. Pritikin, Matt Wilson, 
+ James Henstridge, Detlef Reichl
+
+Overview of Changes in GTK+ 1.3.8
+=================================
+
+* GtkTreeView and GtkTreeModel API cleanups/improvements [Jrb]
+* GtkOptionMenu scrollwheel support [Alex]
+* GtkModule search paths [Owen]
+* Documenatation updates [Havoc,Jrb]
+* Major Gdk cleanup [Owen]
+* Miscellaneous other fixes/cleanups
+
+Other Contributors:
+  Joshua N Pritikin, Padraig O'Briain, Jakub Steiner, Matthias Clasen,
+  Matt Wilson, James Henstridge
+
+Overview of Changes in GTK+ 1.3.7
+=================================
+
+* Many Pixbuf (loader) improvements [Matthias Clasen, Soeren Sandmann]
+* Added publically installed utility gdk-pixbuf-csource to generate
+  inlined pixbufs in C source code [Tim Janik]
+* Optional movement of button children on press [Soeren, Owen Taylor]
+* Interactive searching in GtkTreeView [Kristian Rietveld]
+* Sorting/ordering improvements for GtkTreeView [Kris, Jonathan Blandford]
+* Animation of expander motion for GtkTreeView [Anders Carlsson]
+* Lots of misc GtkTreeView fixes and improvements [Jonathan]
+* New/improved stock icons [Jakub Steiner] 
+* Code and API rework for window resizing [Havoc Pennington]
+* Converted accel groups to GObject [James Henstridge]
+* More property support improvements
+* Add facility for "secondary" buttons in 
+  GtkButtonBox/GtkDialog [Gregory Merchan]
+* Disentangled child visability from MAPPED state [Owen]
+* Plug/Socket improvements and port to the XEMBED protocol [Owen]
+* Added priorities for styles in RC files, 
+  support multiple parse contents [Owen]
+* Made GdkVisual and GdkDevice GObjects [Alexander Larsson]
+* Key binding improvements [Havoc]
+* Added GtkWidget::event-after signal since normal event handling
+  is now aborted as soon as a handler returned TRUE [Tim]
+* Dnd fixes and improved icon support [Owen]
+* Removed GtkPacker widget
+* Fixing missing paired getters/setters [Kris]
+* Nuked remaining GtkArg cruft, implemented container/child properties [Tim]
+* Added window grab groups [Owen]
+* Many frame buffer improvements [Alex]
+* Win32 fixes and improvements [Hans Breuer]
+* Warning fixes [Darin Adler]
+* Miscellaneous bug and API fixes [Matthias et. al]
+
+Other Contributors:
+  Joshua N Pritikin, Hidetoshi Tajima, Manish Singh, ERDI Gergo, Jens Finke,
+  Chema Celorio, Lee Mallabone, Vitaly Tishkov, Sebastian Wilhelmi,
+  Nicola Girardi, Sven Neumann, Padraig O'Briain, Michael Natterer,
+  Suresh Chandrasekharan, Jonas Borgström, Jay Cox, Michael Meeks,
+  Mathias Hasselmann, Peter Williams, Thomas Broyer, Kjartan Maraas,
+  Joel Becker, Jeff Franks, Brian Cameron, Skip Montanaro
+
+Overview of Changes in GTK+ 1.3.6
+=================================
+
+* Properly renders strikethrough text
+* win32 fixes
+* Added "scale" property to GtkTextTag and GtkCellRendererText to do 
+  relative font scaling
+* Added "format_value" signal to GtkScale to reformat value text
+* framebuffer fixes
+* Property support added to lots of widgets
+* Many GtkTreeView new features and API/implementation fixes
+* Lots of new_with_mnemonic() convenience functions
+* Change GtkImageMenuItem API to be more consistent/useful
+* Added lots of new stock items/icons
+* Rewrote GtkRange/GtkScale/GtkScrollbar, includes support for
+  enabling/disabling extra scrollbar stepper arrows in gtkrc so NeXT
+  themes won't need broken hacks
+* Convenience API for GtkRange similar to the one added to GtkSpinButton
+  a while back
+* Make menubar/toolbar work properly with xthickness/ythickness of 1 or 0, 
+  and move some attributes from program settings to user settings.
+  Allows nice 1-pixel-bevel themes.
+* Moved ::focus virtual function from GtkContainer to GtkWidget
+* Plenty of bug fixes
+
+Overview of Changes in GTK+ 1.3.5
+=================================
+
+* New default theme based on Raleigh theme for 1.2.x.
+* Dependency on the ATK library added as a step to
+  providing accessibility-enabling interfaces
+* XEMBED-based GtkPlug/GtkSocket now basically works.
+* Drag and drop of column headers in GtkTreeView
+* GtkColorSelector work: hooks for saving and propagating palette, UI tweaks,
+  and API sanitation
+* Key binding fixes
+* Configurable padding/spacing in a lot of places
+* Invisible text in GtkTextView fixed
+* SHM segments now created with a mode of 0600
+* Bug fixes
+
+Overview of Changes in GTK+ 1.3.4
+=================================
+
+* Win32 fixes
+* GtkTreeView improvements and fixes
+* Fix glib-2.0.m4
+* Miscellaneous bug fixes
+
+Overview of Changes in GTK+ 1.3.3
+=================================
+
+[ 5600 lines of ChangeLog ]
+
+* API cleanups
+* Win32 work (Tor, Hans Breuer)
+* Focus improvements (Owen)
+* Frame buffer improvements (Alex)
+* Work on GtkTextView (Havoc)
+* Much work on GtkTreeView (Jonathan)
+* Selectable labels (Havoc)
+* Converted many arguments to properties (Lee Mallabone, John Margaglione)
+* Add exact regions to GdkExposeEvent, propagate it. (Alex)
+* Added ability to have resize grips in status bars (etc.) using
+  _NET_WM_MOVERESIZE protocol. (Havoc)
+* Added mnemnonic mechanism to make setting underline accelerators
+  much easier. (Alex)
+* Add per-style property mechanism to allow themes to change 
+  geometry parameters. (Tim)
+* Added global settings mechanisms for settings such as double-click
+  time. (Tim, Owen)
+* Various support functions for new and old WM properties (Havoc, Alex)
+* Add TRUE-stops-returns for boolean-returning signals (Ron Steinke)
+
+Overview of Changes in GTK+ 1.3.2
+=================================
+
+GTK Core:
+
+* New stock-icon and stock-item system. Use themeable pixbufs in
+  dialogs, buttons, etc. [Havoc]
+* Theme engines reworked to use derivation and new object system. [Owen]
+* Added GtkClipboard object for simple selection handling. [Owen]
+* Make GtkEditable an interface, move implementation to GtkOldEditable for
+  compat. [Owen]
+* Better handling of default directionality. [Robert]
+* Use GSignal as backend for GtkSignal and other GObject stuff. [Tim]
+* Move theme engines to GTypePlugin. [Owen]
+
+GDK:
+
+* Beginning of implementation of client parts of new window manager spec. [Owen]
+* Make gdk_drawable_get_image() work with backing store. [Havoc]
+
+Widgets:
+
+* New text widget [Havoc]
+  - Adjustable tab handling.
+  - Ability to have scrolling side areas in new text widget for tabs/line numbers.
+  - Many cleanups and small improvements.
+* Improvements to submenu navigation [Nils Barth/David Santiago] and
+  scrolling menus. [Alex]
+* Simplification of progress bar API. [Havoc]
+* Make GtkImage a generic image-display widget. [Havoc]
+* New GtkTreeView tree widget. Model/view architecture, flexible rendering,
+  large datasets, etc. [Jonathan]
+* New GtkMessageBox widget for message display. [Havoc]
+* Allow labels to have contents set from XML-like markup language. [Havoc]
+* Make dialogs derive from GtkDialog and use stock buttons. [Havoc]
+
+Internationalization:
+
+* Proper character set conversion for clipboard/selection. [Owen]
+* New input method system via loadable modules; support on-the-spot
+  preedit in GtkEntry and new text widget; allow switching input methods
+  on the fly; include modules for XIM and demo Cyrillic-transliteration 
+  module. [Owen]
+* VIQR, Thai, and Inuktitut input methods. [Robert]
+* Convert po files to UTF-8. [Robert]
+
+gdk-pixbuf:
+
+* Full-alpha compositing for gdk-pixbuf on drawable. [Havoc]
+* Add simple saving to gdk-pixbuf. [David Welton/Havoc]
+* Add improved error handling with GError to gdk-pixbuf. [Havoc]
+
+Ports:
+
+* Much work on Win32 Port. [Tor/Hans]
+* Much work on Linux-FB Port. [Elliot/Alex]
+
+Misc:
+
+* Start of new gtk-demo demo program. [Owen/Jonathan]
+* Bug fixes and more bug fixes.
+
+
+Overview of Changes in GTK+ 1.3.1:
+
+* GTK+ now uses the Pango library for text manipulation. All
+  strings in GTK+ now are in Unicode, languages written
+  from right-to-left, and complex-text languages are now supported.
+* The gdk-pixbuf library for image loading and manipulation is 
+  has been integrated with GTK+.
+* The GTK+ object system has mostly been moved to GLib, separating
+  it from the GUI code. Many significant enhancements have been
+  made as part of this.
+* A new text widget is now included. This started as a port
+  of the Tk text widget, and includes such features of the Tk
+  text widget as tags, marks, and unicode text support. It
+  has been enhanced to support model-view operation and the
+  full power of Pango.
+* The GDK library has been extensively revised to support multiple
+  windowing systems. The only fully functional backend in 1.3.1
+  is the X11 backend, however, ports to Win32, Linux-framebuffer,
+  Nano-X, BeOS, and MacOS exist in various states of completion,
+  and at least some of these will be finished and integrated in 
+  before the final GTK+-2.0 release.
+* 32-bit coordinates are now supported throughout GDK and GTK+
+  (they are emulated where not supported by the windowing system.)
+* Many minor bug fixes and enhancements. Incompatible changes
+  are documented in docs/Changes-2.0.txt
+
+Overview of Changes in GTK+ 1.2.8:
+
+* GNU Make 3.79 bug workaround
+* FAQ and tutorial updates and improvements
+* Miscellaneous bug fixes: CList, Calendar, rc-files, FontSelection
+
+Overview of Changes in GTK+ 1.2.7:
+
+* More header cleanups.
+* Fixed activation bug for insensitive widgets.
+* Locale fixes to RC file parsing code.
+* Miscellaneous bugfixes for Item Factory, CList, CTree, X Selections,
+  HScale, VScale, Pixmap, Viewport, OptionMenu, Entry and Notebook.
+* Upgrade to libtool 1.3.4.
+
+Overview of Changes in GTK+ 1.2.6:
+
+* container queue_resize fixes
+* gtk[vh]scale: minor fixups
+* rename idle to idle_id in testgtk to avoid conflicts with 
+  broken libs
+* More consistent naming of gtkrc files
+* Added language support: ro, uk
+
+Overview of Changes in GTK+ 1.2.5:
+
+* more GtkCTree and GtkWindow bug fixes.
+* more redraw/resize queue fixes, better expose event
+  discarding code.
+* more miscellaneous bugs fixed
+* new configure.in option --disable-rebuilds to completely disable
+  rebuilds of autogenerated sources.
+* check for 5.002 now, to avoid failing autogeneration build rules due
+  to old perl versions.
+* fonts (and fontsets) are cached now.
+* more autogeneration make rules and dependency fixups, we should be
+  save with autogeneration up to make -j12 now ;)
+* new window position GTK_WIN_POS_CENTER_ALWAYS, which will recenter the
+  GtkWindow on every size change.
+* major rework of window manager hints handling code, fixed a bunch of
+  races with the new resizing code.
+* the new wm hints and resizing code is absolutely perfect and bug free now,
+  it only lacks testing ;)
+* fixed up various rc style memory problems.
+* gtk_widget_modify_style() now properly changes the style of realized widgets
+  and references the style passed into it. if people worked around this bug,
+  this will introduce a slight memory leak in their code.
+  The code should typically look like:
+            GtkRcStyle *rc_style = gtk_rc_style_new ();
+            [...]
+            gtk_widget_modify_style (widget, rc_style);
+            gtk_rc_style_unref (rc_style);
+* fix problems with positioning menus offscreen.
+* GtkText fixes for some crashes and drawing errors.
+* Better handling for unexpected window destroys in GDK and GTK+.
+  This should make it possible to use a GtkPlug and catch the
+  case where its parent socket is randomly killed.
+* FAQ updates.
+* FileSelection i18n patches, RadioButton fixups.
+* many translation improvements.
+* miscellaneous other bugs fixed.
+
+Overview of Changes in GTK+ 1.2.4:
+
+* DnD improvements (drags can be canceled with Esc now).
+* suppressed configure event reordering in Gdk.
+* rewrite of Gtk's configure event handling.
+* major improvements for the object argument system (Elena Devdariani).
+* major bugfixes for threading, GtkNotebook, GtkItemFactory, GtkCList and
+  GtkCTree.
+* tutorial/FAQ updates, new file generation.txt on autogenerated sources.
+* configure's --with-glib= is "officially" unsupported.
+* upgrade to libtool 1.3.3.
+* various buglets fixed.
+
+Overview of Changes in GTK+ 1.2.3:
+
+* Upgrade to libtool 1.3
+* Check for dgettext (for systems with old versions of GNU Gettext)
+* Many bug fixes (see ChangeLog for details)
+
+Overview of Changes in GTK+ 1.2.2:
+
+* Improved Dnd behaviour with Motif applications.
+* Bug fixes for the Gtk selection code.
+* Minor bug fixes to the Gdk Atom cache and Dnd code (with --display option).
+* Bug fixes and leak plugs for the Gdk IM code.
+* Added gtk_object_get() facility to retrieve object arguments easily.
+  The var args list expects ("arg-name", &value) pairs.
+* Fixed mapping for GdkInputCondition<->GIOCondition, this should fix
+  problems where closed pipes were no longer signaling GDK_INPUT_READ on
+  systems with a native poll().
+* Some cleanups to GtkLabel's memory allocation code (shouldn't leak memory
+  anymore).
+* We don't attempt to lookup xpm color "None" anymore, this should prevent
+  eXodus (commercial X windows server) from popping up a color dialog every
+  time a transparent pixmap is created.
+* Fixed bug where Gtk timeout/idle handlers would execute without the global
+  Gdk lock being held.
+* Other minor bug fixes.
+
+Overview of Changes in GTK+ 1.2.1:
+
+* Many Bug fixes have been applied to the menu and accelerator code.
+* GtkItemFactory can "adopt" foreign menu items now and manage their
+  accelerator installation. This is often required to get GtkItemFactory
+  like accelerator propagation between different windows with the same
+  menu hierarchy and for centralized parsing and saving of accelerators.
+* GtkCList/GtkCTree buttons should always display correctly now.
+* Miscellaneous other bug fixes.
+
+What's New in GTK+ 1.2.0 (since 1.0.x):
+
+* New widgets: GtkFontSelector, GtkPacker, GtkItemFactory, GtkCTree,
+  GtkInvisible, GtkCalendar, GtkLayout, GtkPlug, GtkSocket
+* Many new features and robustness for existing widgets
+* Theme support
+* New DND implementation
+* Internationalization of standard dialogs
+* New key binding system
+* Tearoff menus and menu accelerators
+* Wide character support for entry and text
+* Resizing code has been overhauled
+* Queued redraws of partial areas
+* Far better support for object arguments
+* Speed optimizations
+* Runtime loading of dynamic modules
+* Support for GLib log domains
+* Tutorial improvements
+* A bug fix or two
+
+Overview of Changes in GTK+ 1.1.16:
+
+* Major fixes and improvements for handlebox
+* A change to the way widget->requisition works. Now,
+  widget->requisition is always what the widget requested,
+  unmodified by the usize. See Changes-1.2.txt for details.
+  This correct various bugs with gtk_widget_set_usize().
+* Fixes for XIM on X11R5 systems
+* Don't allow cut-and-paste of text in password-style entries
+* --enable-debug is now on by default for the development release.
+  (When compiling for "production", use --enable-debug=minimum)
+* Handle systems where Helvetica is not present more gracefully
+* Fixes for memory leaks
+* CList and CTree fixes
+* Bug fixes for drawing problems. 
+* Miscellaneous bug fixes to GtkLabel, GtkCList, GtkCTree,
+  GtkColorsel, Focusing, DND
+* Tutorial improvements
+
+Overview of Changes in GTK+ 1.1.15:
+
+* Tutorial Updates
+* Added --libs gthread to gtk-config 
+* Bug fixes
+
+What is new in GTK+ 1.1.14:
+
+* Additions to docs/Changes-1.2.txt
+* Just warn when loading theme engine fails
+* CLAMP GtkScale digits to a meaningful range
+* GTK_LOCALDIR is now defined in a better fashion
+* New functions (feature freeze, we know...):
+    gtk_menu_set_title()
+    gtk_toggle_button_get_active()
+* Some locale fixups in gtkrc code
+* Fixes to make gtk_radio_button_set_group() keep only
+  one radio button in the group active
+* Foreign windows are now always treated as viewable; this fixes
+  a problem where updating didn't occur properly in GtkPlug
+* DND fixes for 64 bit architectures, and for specifying operations 
+  with modifier keys.
+* Major revisions to GtkLayout: avoid having to create window
+  for NO_WINDOW children, adjust allocations of children as 
+  scrolled so queued draws work, and a resize is queued instead
+  of allocating directly in a put() or move()
+
+What is new in GTK+ 1.1.13:
+
+* Dnd and selection bug fixes and memory purification.
+* Widget sensitivity fixups.
+* Tooltips windows are now named "gtk-tooltips" so rc file rules
+  can match tooltips windows. Fixed interaction of tooltips and NO_WINDOW
+  widgets.
+* Spin buttons now update their values upon value retrieval.
+* Overhaul of the resizing vs. redrawing logic to reduce redrawing needs
+  a lot. Gtk makes full use of the draw_area coalescing code now, which
+  got minorly improved as well.
+* Containers map their Gdk windows after their children now to reduce
+  expose event generation.
+* Gdk event queue fixups, this solves the double-click problems people were
+  recently having.
+* Account for the fact that GSource's are only properly reentrant from
+  within dispatch(), thus we don't do Gdk event processing from within
+  check() or prepare() anymore.
+* Rc files feature a bg_pixmap value of "<none>" now.
+* Improved session management support in Gdk.  
+* Automatic disabling of NLS if no gettext is found should work now.
+* Removed deprecated functions, docs/Changes-1.2.txt gives an overview.
+* Gtk+ development now requires GNU autoconf 2.13, GNU automake 1.4
+  and GNU libtool 1.2d.
+* More bug fixes all over the place.
+
+What is new in GTK+ 1.1.12:
+
+* Korean translation added
+* Fixed memory leaks
+* A few other bug fixes
+
+What is new in GTK+ 1.1.11:
+
+* Dutch, Japanese, Swedish, Polish, and Norwegian translations
+* Removed deprecated _interp variants: gtk_container_foreach_interp, 
+  gtk_idle_add_interp, gtk_timeout_add_interp, gtk_signal_connect_interp
+* Lots of cast corrections
+* Many fixes 
+
+What is new in GTK+ 1.1.9:
+
+* Check for broken glibc 2.0 mb functions and avoid them
+* Label and Entry display fixes 
+* Move main thread back to GDK, for locking when translating events
+* Bug fixes
+
+What is new in GTK+ 1.1.8:
+
+* Added support for gettext and the localization of the standard
+  dialogs.
+* Added line-wrapping for the label, and JUSTIFY_FILL
+* Support reordering via drag and drop in  CList and CTree.
+* Replaced GtkDrawWindow widget with a GTK_USER_DRAW flag
+* Extended gtkpaned API to support minimum sizes and proportional
+  resizing.
+* Changed the handling of shared memory segments so as to 
+  remove the need for GTK+ to set up signal handlers.
+* Re-implemented event loop in terms of the event loop
+  that has been added to GLib 1.1.8
+* Added 'grab_focus' signal to allow keyboard accelerators
+  for entries.
+* Load locale specific RC files if present.
+* Bug fixes.
+
+What is new in GTK+ 1.1.7:
+
+* Fixed memory mis-allocation in default files code
+* Various event handling fixes
+* Wide character support for entry and text
+* Destroy widgets _after_ propagating unrealize signals through 
+  widget hierarchy
+* Only build XIM-support if available
+* Tutorial and examples updates
+* Added gtk_drag_source_unset()
+
+What is new in GTK+ 1.1.6:
+
+* The signal system now features emission hooks with special semantics,
+  refer to the ChangeLog for this.
+* Minor? speedups and memory reductions to the emission handling of the
+  signal system.
+* _interp() function variants are deprecated now. the corresponding *_full()
+  variants are provided for a long time now.
+* Dnd abort timeout increased to 10 minutes.
+* GtkScrolledWindow inherits from GtkBin now.
+* GTK_POLICY_NEVER is implemented for scrolled windows now.
+* Lots of API clean ups.
+* Incremental freezing abilities.
+* Integrated widgets from the GNOME tree: GtkLayout, GtkPlug and GtkSocket.
+* New window functions for transient relationship, default size, and 
+  geometry hints
+* Default rc files are now read in (<sysconfdir/etc/gtkrc and ~/.gtkrc)
+  GTK_RC_FILES environment variable and functions are provided to configure
+  this behavior
+* Read doc/Changes-1.2.txt to properly adapt your code.
+* Bug Fixes.
+
+What is new in GTK+ 1.1.5:
+
+* Theme integration
+* Widget style modification is now handled through GtkRcStyles
+* GtkPixmaps now grey out pixmaps when insensitive
+* Notebook enhancements
+* Shadow configurability for menubars and handleboxes
+* DND enhancements
+* gtkfilesel now supports automounters better
+* Implementation of expose compression
+* Queued redraws of partial areas
+* Scrolledwindow (+Viewport) source incompatibilities, children that are added
+  to a scrolled window don't get an automatic viewport anymore. a convenience
+  function gtk_scrolled_window_add_with_viewport() is supplied for this task
+* Deprecated functions will now issue a message, informing the programmer about
+  the use of this function. These functions will get removed in future versions
+* Non-functional functions got removed entirely
+* gtk_widget_new() and gtk_object_new() will now auto-construct new objects.
+  A new function gtk_object_default_construct() is provided now which should
+  be called after every gtk_type_new() to perform the auto-construction
+* Improved argument support of several widgets
+* Bug Fixes
+
+What is new in GTK+ 1.1.3:
+
+* GtkCList/GtkCTree now have the ability to:
+    - hide/show individual columns
+    - disable/enable column resizing
+    - set min and max for column widths
+    - set expander style of the ctree
+    - set/get row and cell styles
+    - set spacing between tree expander and cell contents in ctree
+    - toggle auto_resize for columns
+* Must enhanced DND support, removed old DND code
+* Idle functions are now implemented via GHook, giving a slight speed
+  improvement
+* An environment variable GTK_MODULES which takes a colon separated
+  list of module names GTK+ will now automatically load at gtk_init() startup
+* GtkFontSel now has support for an extra 'base' filter
+* New function gdk_window_set_root_origin to get the real geometry taking
+  into account window manager offsets
+* New function gtk_text_set_line_wrap to toggle line wrapping
+* New function gtk_widget_add_events which safely adds additional
+  events to a widget's event mask
+* New function gdk_event_get_time to get the timestamp from a generic
+  event
+* New widget GtkCalendar
+* New widget GtkInvisible - InputOnly offscreen windows used for reliable
+  pointer grabs and selection handling in DND code
+* New functions gtk_object_remove_no_notify[_by_id] to remove a certain
+  data portion without invocation of its destroy notifier 
+* gtk_spin_button_construct is now deprecated, use gtk_spin_button_configure
+  instead 
+* gtk_clist_set_border is now deprecated, use gtk_clist_set_shadow_type 
+  instead
+* Removed functions gtk_object_set_data_destroy[_by_id] 
+* Documentation additions/updates 
+* HTML and plain text files are now included in the distribution
+* Bug fixes, typeness corrections, and general fixups
+
+What is new in GTK+ 1.1.2:
+
+* Gtk+ is now featuring runtime loading of dynamic modules via the
+  --gtk-modules= command line switch. such modules have to export a
+  G_MODULE_EXPORT void gtk_module_init (gint *argc, gchar ***argv);
+  function which will be invoked to initialize the module. since such
+  modules may create new widget types, they are always resident.
+* The tutorial has been updated again.
+* Changes to menus including tearoff menus and accelerators.
+* Better support for modal dialogs.
+* Removed CAN_FOCUS by default from scrollbars and button children of toolbar.
+* More improvements and fixes for GtkCList and GtkCTree (i.e. row sorting).
+* GtkCTree rows can be unselectable now.
+* The GtkCTree API has undergone major renames (see ChangeLog entry from Lars
+  Hamann on Tue Aug 18 00:29:13 1998).
+* A bunch of varargs functions changed to get va_lists working on systems that
+  implement va_lists as arrays.
+* Improvements to the gdkrgb code.
+* Improvements to Gdk color handling so we greatly reduce server traffic and
+  don't leak colors anymore.
+* Improved internal widget tree iterators (the GtkContainer::foreach signal
+  vanished because of this).
+* Option menus can have the keyboard focus now.
+* More fixups to the text widget.
+* GtkFileSelection should behave much more nicely in combination with AFS now.
+* Support for label underlining.
+* Support for GLib 1.1.3 log domains.
+* Documentation improvements.
+* Configuration fixes on various platforms.
+* Miscellaneous fixes to XInput support.
+* Build with shared library dependencies on Linux
+* Fix for a major bug in the type systems memory allocation code that could
+  cause random crashes.
+* Libtool update to version 1.2b.
+* Lots of bugfixes and cleanups again ;)
+
+
+What is new in GTK+ 1.1.1:
+
+* Tutorial updates and additions.
+* Key binding support for GtkListItems and GtkList.
+* Extended selection mode and autoscrolling for GtkLists.
+* A GtkCtree now operates on GtkCTreeNode* structures rather than GList*.
+* GtkCTreeNodes can now be created from GNode trees.
+* Bug fixes for GtkNotebook, GtkCList, GtkCombo and GdkWindow reparentation.
+
+
+What is new in GTK+ 1.1.0:
+
+* New widget GtkFontSelector.
+* New featureful progress bar.
+* New container widget GtkPacker.
+* New object GtkItemFactory, GtkMenuFactory is deprecated.
+* New key binding system, configurable via rcfiles, similar to styles.
+* New widget GtkCTree with drag selections and keyboard movement and
+  and horizontal scrolling. Features also implemented for GtkCList.
+* Significant speedups to widget creation and destruction through caching
+  colormap and visual queries to the XServer.
+* Speedups for type creation and especially gtk_type_is_a() checks.
+* Speedups in signal lookup, creation and emissions and connection handling.
+* Minor speedups with object data allocation and destruction.
+* Additions to the signal handling API (e.g. *_emitv).
+* Support for rc-file reparsing.
+* Resizing logic is now implemented on container widget basis, rather than
+  for toplevel GtkWindows only.
+* Buttons support relief styles now.
+* Some widgets are now allocated through memchunks to behave more memory wise.
+* Newly included file gtkfeatures.h which defines compatibility macros to
+  test for certain API features upon program compilation.
+* Child arguments support for container widgets.
+* Far better support for object arguments, revamp of the underlying
+  mechanism for speed and reusability. Child/object arguments don't
+  need to be preceded by the "GtkType::" portion anymore.
+* Removed GtkAcceleratorTable in favour of GtkAccelGroup, accelerator display
+  is now performed by a new widget GtkAccelLabel.
+* Overhaul of the resizing code. Resizing behaviour can now be specified
+  on GtkContainer basis, so the underlying algorithm isn't only available
+  for GtkWindows.
+* GtkTables are now fully resizable.
+* The GtkType system now supports an additional base class initialization
+  function.
+* GtkStyles and key bindings can now be looked up depending on the base
+  types of a widget, through a new keyword `class' in rc files.
+* GtkButton derives from GtkBin (finally).  
+* More descriptive error messages on rc parsing.  
+* Runtime information is available to query enum/flag definition values.
+* Upgrade to libtool-1.2
+* Legions of bug fixes, memory leaks, segfaults, of-by-something errors...
+  including those that already went into the 1.0.x branch.
+* A big bunch of features and cosmetic fixups that just got lost in
+  the masses of changesonfigure problem when cross-compiling
@@ -1,6 +1,8 @@
 GTK+ — The GTK toolkit
 ======================

+[![Build Status](https://gitlab.gnome.org/GNOME/gtk/badges/master/build.svg)](https://gitlab.gnome.org/GNOME/gtk/pipelines)
+
 General information
 -------------------

@@ -34,8 +36,8 @@ Building and installing

 In order to build GTK+ you will need:

-  - a C99 compatible compiler
-  - Python 3
+  - [a C99 compatible compiler](https://wiki.gnome.org/Projects/GLib/CompilerRequirements)
+  - [Python 3](https://www.python.org/)
  - [Meson](http://mesonbuild.com)
  - [Ninja](https://ninja-build.org)

@@ -59,10 +61,10 @@ If you are building the X11 backend, you will also need:
    - xrender
    - xi
    - xext
-    - xfixes (optional)
-    - xcursor (optional)
-    - xdamage (optional)
-    - xcomposite (optional)
+    - xfixes
+    - xcursor
+    - xdamage
+    - xcomposite
  - [atk-bridge-2.0](https://download.gnome.org/sources/at-spi2-atk)

 If you are building the Wayland backend, you will also need:
@@ -105,8 +107,7 @@ Or [online](https://developer.gnome.org/gtk4/stable/gtk-building.html)
 How to report bugs
 ------------------

-Bugs should be reported to the GNOME [bug tracking system](https://bugzilla.gnome.org/enter_bug.cgi?product=gtk%2b).
-You will need an account for yourself.
+Bugs should be reported on the [issues page](https://gitlab.gnome.org/GNOME/gtk/issues/new).

 In the bug report please include:

@@ -121,11 +122,12 @@ In the bug report please include:

 * How to reproduce the bug.

-  If you can reproduce it with one of the test programs that are built
-  in the tests/ subdirectory, that will be most convenient.  Otherwise,
-  please include a short test program that exhibits the behavior.
-  As a last resort, you can also provide a pointer to a larger piece
-  of software that can be downloaded.
+  If you can reproduce it with one of the demo applications that are
+  built in the demos/ subdirectory, on one of the test programs that
+  are built in the tests/ subdirectory, that will be most convenient.
+  Otherwise, please include a short test program that exhibits the
+  behavior. As a last resort, you can also provide a pointer to a
+  larger piece of software that can be downloaded.

 * If the bug was a crash, the exact text that was printed out
  when the crash occurred.
@@ -133,24 +135,6 @@ In the bug report please include:
 * Further information such as stack traces may be useful, but
  is not necessary.

-
-Contributing
------------
-
-Patches should also be submitted to the bug tracking system. If the patch
-fixes an existing bug, add the patch as an attachment to that bug report;
-otherwise, enter a new bug report that describes the patch, and attach the
-patch to that bug report.
-
-Patches should be in Git-formatted form. You should use `git format-patch`
-to generate them. We recommend using [git-bz](http://git.fishsoup.net/man/git-bz.html).
-
-For more information on the recommended workflow, please read
-[this wiki page](https://wiki.gnome.org/Git/WorkingWithPatches).
-
-Please, follow the `CODING_STYLE` document in order to conform to GTK+'s
-coding style when submitting a code contribution.
-
 Release notes
 -------------

@@ -0,0 +1,75 @@
+{
+    "app-id": "org.gtk.Demo",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "gtk4-demo",
+    "tags": ["devel", "development", "nightly"],
+    "rename-desktop-file": "gtk4-demo.desktop",
+    "rename-icon": "gtk4-demo",
+    "desktop-file-name-prefix": "(Development) ",
+    "finish-args": [
+        "--device=dri",
+        "--share=ipc",
+        "--socket=x11",
+        "--socket=wayland",
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
+        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/pkgconfig", "/share/pkgconfig",
+        "/share/aclocal",
+        "/man", "/share/man", "/share/gtk-doc",
+        "*.la", ".a",
+        "/lib/girepository-1.0",
+        "/share/gir-1.0",
+        "/share/doc"
+    ],
+    "modules": [
+        {
+            "name" : "wayland",
+            "buildsystem" : "autotools",
+            "builddir" : true,
+            "config-opts" : [
+                "--disable-documentation"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/wayland-project/wayland.git"
+                }
+            ]
+        },
+        {
+            "name": "graphene",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib",
+                "-Dtests=false",
+                "-Dbenchmarks=false"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ebassi/graphene.git"
+                }
+            ]
+        },
+        {
+            "name": "gtk",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                }
+            ]
+        }
+    ]
+}
@@ -0,0 +1,75 @@
+{
+    "app-id": "org.gtk.WidgetFactory",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "gtk4-widget-factory",
+    "tags": ["devel", "development", "nightly"],
+    "rename-desktop-file": "gtk4-widget-factory.desktop",
+    "rename-icon": "gtk4-widget-factory",
+    "desktop-file-name-prefix": "(Development) ",
+    "finish-args": [
+        "--device=dri",
+        "--share=ipc",
+        "--socket=x11",
+        "--socket=wayland",
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
+        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/pkgconfig", "/share/pkgconfig",
+        "/share/aclocal",
+        "/man", "/share/man", "/share/gtk-doc",
+        "*.la", ".a",
+        "/lib/girepository-1.0",
+        "/share/gir-1.0",
+        "/share/doc"
+    ],
+    "modules": [
+        {
+            "name" : "wayland",
+            "buildsystem" : "autotools",
+            "builddir" : true,
+            "config-opts" : [
+                "--disable-documentation"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/wayland-project/wayland.git"
+                }
+            ]
+        },
+        {
+            "name": "graphene",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib",
+                "-Dtests=false",
+                "-Dbenchmarks=false"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ebassi/graphene.git"
+                }
+            ]
+        },
+        {
+            "name": "gtk",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                }
+            ]
+        }
+    ]
+}
@@ -16,6 +16,11 @@ if [ -z "$DESTDIR" ]; then
  echo Updating icon cache...
  gtk-update-icon-cache -q -t -f ${gtk_datadir}/icons/hicolor

-  echo Updating input method modules cache...
-  gtk4-query-immodules > ${gtk_libdir}/gtk-${gtk_api_version}/${gtk_abi_version}/immodules.cache
+  echo Updating module cache for print backends...
+  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
+  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
+
+  echo Updating module cache for input methods...
+  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/immodules
+  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/immodules
 fi
@@ -41,6 +41,9 @@
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #mesondefine HAVE_DLFCN_H

+/* Have the ffmpeg library */
+#mesondefine HAVE_FFMPEG
+
 /* Define to 1 if you have the <ftw.h> header file. */
 #mesondefine HAVE_FTW_H

@@ -53,6 +56,9 @@
 /* Define if gio-unix is available */
 #mesondefine HAVE_GIO_UNIX

+/* Define if GStreamer support is available */
+#mesondefine HAVE_GSTREAMER
+
 /* Define to 1 if you have the `httpGetAuthString' function. */
 #mesondefine HAVE_HTTPGETAUTHSTRING

@@ -280,6 +286,10 @@
 /* Define to 1 if linux/memfd.h exists */
 #mesondefine HAVE_LINUX_MEMFD_H

+#mesondefine HAVE_LINUX_INPUT_H
+
+#mesondefine HAVE_DEV_EVDEV_INPUT_H
+
 #mesondefine GTK_SYSCONFDIR

 #mesondefine GTK_LOCALEDIR
@@ -289,3 +299,19 @@
 #mesondefine GTK_LIBDIR

 #mesondefine GTK_PRINT_BACKENDS
+
+#mesondefine HAVE_HARFBUZZ
+
+#mesondefine HAVE_PANGOFT
+
+#mesondefine ISO_CODES_PREFIX
+
+#mesondefine MALLOC_IS_ALIGNED16
+
+#mesondefine HAVE_POSIX_MEMALIGN
+
+#mesondefine HAVE_MEMALIGN
+
+#mesondefine HAVE_ALIGNED_ALLOC
+
+#mesondefine HAVE__ALIGNED_MALLOC
@@ -457,27 +457,26 @@ demo_application_window_constructed (GObject *object)
 static void
 demo_application_window_size_allocate (GtkWidget           *widget,
                                       const GtkAllocation *allocation,
-                                       int                  baseline,
-                                       GtkAllocation       *out_clip)
+                                       int                  baseline)
 {
  DemoApplicationWindow *window = (DemoApplicationWindow *)widget;

  GTK_WIDGET_CLASS (demo_application_window_parent_class)->size_allocate (widget, allocation,
-                                                                          baseline, out_clip);
+                                                                          baseline);

  if (!window->maximized && !window->fullscreen)
    gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);
 }

 static void
-window_state_changed (GtkWidget *widget)
+surface_state_changed (GtkWidget *widget)
 {
  DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
-  GdkWindowState new_state;
+  GdkSurfaceState new_state;

-  new_state = gdk_window_get_state (gtk_widget_get_window (widget));
-  window->maximized = (new_state & GDK_WINDOW_STATE_MAXIMIZED) != 0;
-  window->fullscreen = (new_state & GDK_WINDOW_STATE_FULLSCREEN) != 0;
+  new_state = gdk_surface_get_state (gtk_widget_get_surface (widget));
+  window->maximized = (new_state & GDK_SURFACE_STATE_MAXIMIZED) != 0;
+  window->fullscreen = (new_state & GDK_SURFACE_STATE_FULLSCREEN) != 0;
 }

 static void
@@ -485,15 +484,15 @@ demo_application_window_realize (GtkWidget *widget)
 {
  GTK_WIDGET_CLASS (demo_application_window_parent_class)->realize (widget);

-  g_signal_connect_swapped (gtk_widget_get_window (widget), "notify::state",
-                            G_CALLBACK (window_state_changed), widget);
+  g_signal_connect_swapped (gtk_widget_get_surface (widget), "notify::state",
+                            G_CALLBACK (surface_state_changed), widget);
 }

 static void
 demo_application_window_unrealize (GtkWidget *widget)
 {
-  g_signal_handlers_disconnect_by_func (gtk_widget_get_window (widget),
-                                        window_state_changed, widget);
+  g_signal_handlers_disconnect_by_func (gtk_widget_get_surface (widget),
+                                        surface_state_changed, widget);

  GTK_WIDGET_CLASS (demo_application_window_parent_class)->unrealize (widget);
 }
@@ -7,35 +7,29 @@
    <property name="icon-name">document-open</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <child>
          <object class="GtkToolbar">
-            <property name="visible">1</property>
            <property name="hexpand">1</property>
            <style>
              <class name="primary-toolbar"/>
            </style>
            <child>
              <object class="GtkMenuToolButton" id="menutool">
-                <property name="visible">1</property>
                <property name="icon-name">document-open</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="icon-name">application-exit</property>
                <property name="action-name">app.quit</property>
              </object>
            </child>
            <child>
              <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="icon-name">applications-other</property>
                <property name="action-name">win.logo</property>
              </object>
@@ -54,7 +48,6 @@
              <object class="GtkBox" id="content_area">
                <child>
                  <object class="GtkLabel" id="message">
-                    <property name="visible">1</property>
                    <property name="hexpand">1</property>
                  </object>
                </child>
@@ -64,10 +57,9 @@
              <object class="GtkBox">
                <child>
                  <object class="GtkButton">
-                    <property name="visible">1</property>
                    <property name="valign">center</property>
                    <property name="label" translatable="yes">_OK</property>
-                    <property name="use_underline">1</property>
+                    <property name="use-underline">1</property>
                    <signal name="clicked" handler="clicked_cb"/>
                  </object>
                </child>
@@ -81,11 +73,9 @@
        </child>
        <child>
          <object class="GtkScrolledWindow">
-            <property name="visible">1</property>
            <property name="shadow-type">in</property>
            <child>
              <object class="GtkTextView">
-                <property name="visible">1</property>
                <property name="hexpand">1</property>
                <property name="vexpand">1</property>
                <property name="buffer">buffer</property>
@@ -100,7 +90,6 @@
        <child>
          <object class="GtkStatusbar" id="status">
            <property name="hexpand">1</property>
-            <property name="visible">1</property>
          </object>
          <packing>
            <property name="left-attach">0</property>
@@ -2,21 +2,16 @@
 <interface>
  <requires lib="gtk+" version="3.20"/>
  <object class="GtkWindow" id="window">
-    <property name="can_focus">False</property>
-    <property name="resizable">False</property>
+    <property name="resizable">0</property>
    <property name="title">CSS Blend Modes</property>
-    <property name="default_width">400</property>
-    <property name="default_height">300</property>
+    <property name="default-width">400</property>
+    <property name="default-height">300</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="row_spacing">12</property>
-        <property name="column_spacing">12</property>
+        <property name="row-spacing">12</property>
+        <property name="column-spacing">12</property>
        <child>
          <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
            <property name="label" translatable="yes">Blend mode:</property>
            <property name="xalign">0</property>
            <style>
@@ -24,128 +19,108 @@
            </style>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="vexpand">True</property>
-            <property name="shadow_type">in</property>
-            <property name="min_content_width">150</property>
+            <property name="can-focus">1</property>
+            <property name="vexpand">1</property>
+            <property name="shadow-type">in</property>
+            <property name="min-content-width">150</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkStackSwitcher">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
            <property name="halign">center</property>
-            <property name="hexpand">True</property>
+            <property name="hexpand">1</property>
            <property name="stack">stack</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="hhomogeneous">False</property>
-            <property name="vhomogeneous">False</property>
-            <property name="transition_type">crossfade</property>
+            <property name="hexpand">1</property>
+            <property name="vexpand">1</property>
+            <property name="hhomogeneous">0</property>
+            <property name="vhomogeneous">0</property>
+            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Duck</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Background</property>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="duck"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="gradient"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">
 Blended picture</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                    <property name="width">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend0"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                    <property name="width">2</property>
                  </packing>
                </child>
@@ -157,87 +132,72 @@ Blended picture</property>
            </child>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Red</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Blue</property>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="red"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="blue"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">
 Blended picture</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                    <property name="width">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend1"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                    <property name="width">2</property>
                  </packing>
                </child>
@@ -249,71 +209,59 @@ Blended picture</property>
            </child>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">True</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">6</property>
-                <property name="column_spacing">12</property>
+                <property name="hexpand">1</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">6</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="cyan"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="magenta"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="yellow"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend2"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">3</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Cyan</property>
                    <property name="xalign">0</property>
                    <style>
@@ -321,14 +269,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Magenta</property>
                    <property name="xalign">0</property>
                    <style>
@@ -336,14 +282,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Yellow</property>
                    <property name="xalign">0</property>
                    <style>
@@ -351,14 +295,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Blended picture</property>
                    <property name="xalign">0</property>
                    <attributes>
@@ -366,8 +308,8 @@ Blended picture</property>
                    </attributes>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">2</property>
                  </packing>
                </child>
              </object>
@@ -378,14 +320,13 @@ Blended picture</property>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
      </object>
    </child>
    <child type="titlebar">
-      <placeholder/>
    </child>
  </object>
 </interface>
@@ -68,19 +68,19 @@ enum
 static GtkWidget *
 find_toplevel_at_pointer (GdkDisplay *display)
 {
-  GdkWindow *pointer_window;
+  GdkSurface *pointer_window;
  GtkWidget *widget = NULL;

-  pointer_window = gdk_device_get_window_at_position (gtk_get_current_event_device (),
+  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (),
                                                      NULL, NULL);

-  /* The user data field of a GdkWindow is used to store a pointer
+  /* The user data field of a GdkSurface is used to store a pointer
   * to the widget that created it.
   */
  if (pointer_window)
    {
      gpointer widget_ptr;
-      gdk_window_get_user_data (pointer_window, &widget_ptr);
+      gdk_surface_get_user_data (pointer_window, &widget_ptr);
      widget = widget_ptr;
    }

@@ -88,11 +88,12 @@ find_toplevel_at_pointer (GdkDisplay *display)
 }

 static gboolean
-button_release_event_cb (GtkWidget       *widget,
-                         GdkEventButton  *event,
-                         gboolean        *clicked)
+release_event_cb (GtkWidget *widget,
+                  GdkEvent  *event,
+                  gboolean  *clicked)
 {
-  *clicked = TRUE;
+  if (gdk_event_get_event_type (event) == GDK_BUTTON_RELEASE)
+    *clicked = TRUE;
  return TRUE;
 }

@@ -127,16 +128,16 @@ query_for_toplevel (GdkDisplay *display,
  device = gtk_get_current_event_device ();

  if (gdk_seat_grab (gdk_device_get_seat (device),
-                     gtk_widget_get_window (popup),
+                     gtk_widget_get_surface (popup),
                     GDK_SEAT_CAPABILITY_ALL_POINTING,
                     FALSE, cursor, NULL, NULL, NULL) == GDK_GRAB_SUCCESS)
    {
      gboolean clicked = FALSE;

-      g_signal_connect (popup, "button-release-event",
-                        G_CALLBACK (button_release_event_cb), &clicked);
+      g_signal_connect (popup, "event",
+                        G_CALLBACK (release_event_cb), &clicked);

-      /* Process events until clicked is set by button_release_event_cb.
+      /* Process events until clicked is set by our button release event handler.
       * We pass in may_block=TRUE since we want to wait if there
       * are no events currently.
       */
@@ -93,8 +93,8 @@ paste_button_clicked (GtkWidget *button,
  gdk_clipboard_read_text_async (clipboard, NULL, paste_received, entry);
 }

-static GdkTexture *
-get_image_texture (GtkImage *image)
+static GdkPaintable *
+get_image_paintable (GtkImage *image)
 {
  const gchar *icon_name;
  GtkIconTheme *icon_theme;
@@ -102,15 +102,15 @@ get_image_texture (GtkImage *image)

  switch (gtk_image_get_storage_type (image))
    {
-    case GTK_IMAGE_TEXTURE:
-      return g_object_ref (gtk_image_get_texture (image));
+    case GTK_IMAGE_PAINTABLE:
+      return g_object_ref (gtk_image_get_paintable (image));
    case GTK_IMAGE_ICON_NAME:
      icon_name = gtk_image_get_icon_name (image);
      icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (image)));
      icon_info = gtk_icon_theme_lookup_icon (icon_theme, icon_name, 48, GTK_ICON_LOOKUP_GENERIC_FALLBACK);
      if (icon_info == NULL)
        return NULL;
-      return gtk_icon_info_load_texture (icon_info);
+      return GDK_PAINTABLE (gtk_icon_info_load_texture (icon_info));
    default:
      g_warning ("Image storage type %d not handled",
                 gtk_image_get_storage_type (image));
@@ -123,11 +123,14 @@ drag_begin (GtkWidget      *widget,
            GdkDragContext *context,
            gpointer        data)
 {
-  GdkTexture *texture;
+  GdkPaintable *paintable;

-  texture = get_image_texture (GTK_IMAGE (widget));
-  if (texture)
-    gtk_drag_set_icon_texture (context, texture, -2, -2);
+  paintable = get_image_paintable (GTK_IMAGE (widget));
+  if (paintable)
+    {
+      gtk_drag_set_icon_paintable (context, paintable, -2, -2);
+      g_object_unref (paintable);
+    }
 }

 void
@@ -138,11 +141,11 @@ drag_data_get (GtkWidget        *widget,
               guint             time,
               gpointer          data)
 {
-  GdkTexture *texture;
+  GdkPaintable *paintable;

-  texture = get_image_texture (GTK_IMAGE (widget));
-  if (texture)
-    gtk_selection_data_set_texture (selection_data, texture);
+  paintable = get_image_paintable (GTK_IMAGE (widget));
+  if (GDK_IS_TEXTURE (paintable))
+    gtk_selection_data_set_texture (selection_data, GDK_TEXTURE (paintable));
 }

 static void
@@ -157,7 +160,7 @@ drag_data_received (GtkWidget        *widget,
      GdkTexture *texture;

      texture = gtk_selection_data_get_texture (selection_data);
-      gtk_image_set_from_texture (GTK_IMAGE (data), texture);
+      gtk_image_set_from_paintable (GTK_IMAGE (data), GDK_PAINTABLE (texture));
      g_object_unref (texture);
    }
 }
@@ -167,16 +170,16 @@ copy_image (GtkMenuItem *item,
            gpointer     data)
 {
  GdkClipboard *clipboard;
-  GdkTexture *texture;
+  GdkPaintable *paintable;

  clipboard = gtk_widget_get_clipboard (GTK_WIDGET (data));
-  texture = get_image_texture (GTK_IMAGE (data));
+  paintable = get_image_paintable (GTK_IMAGE (data));

-  if (texture)
-    {
-      gdk_clipboard_set_texture (clipboard, texture);
-      g_object_unref (texture);
-    }
+  if (GDK_IS_TEXTURE (paintable))
+    gdk_clipboard_set_texture (clipboard, GDK_TEXTURE (paintable));
+
+  if (paintable)
+    g_object_unref (paintable);
 }

 static void
@@ -190,7 +193,7 @@ paste_image_received (GObject      *source,
  if (texture == NULL)
    return;
    
-  gtk_image_set_from_texture (GTK_IMAGE (data), texture);
+  gtk_image_set_from_paintable (GTK_IMAGE (data), GDK_PAINTABLE (texture));
  g_object_unref (texture);
 }

@@ -207,34 +210,29 @@ paste_image (GtkMenuItem *item,
                                    data);
 }

-static gboolean
-button_press (GtkWidget      *widget,
-              GdkEventButton *event,
-              gpointer        data)
+static void
+pressed_cb (GtkGesture *gesture,
+            int         n_press,
+            double      x,
+            double      y,
+            GtkWidget  *image)
 {
  GtkWidget *menu;
  GtkWidget *item;
-  guint button;
-
-  gdk_event_get_button ((GdkEvent *)event, &button);
-
-  if (button != GDK_BUTTON_SECONDARY)
-    return FALSE;

  menu = gtk_menu_new ();

  item = gtk_menu_item_new_with_mnemonic (_("_Copy"));
-  g_signal_connect (item, "activate", G_CALLBACK (copy_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (copy_image), image);
  gtk_widget_show (item);
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

  item = gtk_menu_item_new_with_mnemonic (_("_Paste"));
-  g_signal_connect (item, "activate", G_CALLBACK (paste_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (paste_image), image);
  gtk_widget_show (item);
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

-  gtk_menu_popup_at_pointer (GTK_MENU (menu), (GdkEvent *) event);
-  return TRUE;
+  gtk_menu_popup_at_pointer (GTK_MENU (menu), NULL);
 }

 GtkWidget *
@@ -246,6 +244,7 @@ do_clipboard (GtkWidget *do_widget)
      GtkWidget *label;
      GtkWidget *entry, *button;
      GtkWidget *image;
+      GtkGesture *gesture;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      gtk_window_set_display (GTK_WINDOW (window),
@@ -322,8 +321,10 @@ do_clipboard (GtkWidget *do_widget)
                        G_CALLBACK (drag_data_received), image);

      /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new ();
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));

      /* Create the second image */
      image = gtk_image_new_from_icon_name ("process-stop");
@@ -345,8 +346,10 @@ do_clipboard (GtkWidget *do_widget)
                        G_CALLBACK (drag_data_received), image);

      /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new ();
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
    }

  if (!gtk_widget_get_visible (window))
@@ -105,9 +105,6 @@
    <file>gnome-fs-directory.png</file>
    <file>gnome-fs-regular.png</file>
  </gresource>
-  <gresource prefix="/stack">
-    <file>stack.ui</file>
-  </gresource>
  <gresource prefix="/shortcuts">
    <file>shortcuts.ui</file>
    <file>shortcuts-builder.ui</file>
@@ -115,12 +112,21 @@
    <file>shortcuts-clocks.ui</file>
    <file>shortcuts-boxes.ui</file>
  </gresource>
+  <gresource prefix="/sliding_puzzle">
+    <file>puzzlepiece.c</file>
+    <file>puzzlepiece.h</file>
+    <file>portland-rose.jpg</file>
+  </gresource>
+  <gresource prefix="/stack">
+    <file>stack.ui</file>
+  </gresource>
  <gresource prefix="/revealer">
    <file>revealer.ui</file>
  </gresource>
  <gresource prefix="/images">
    <file>alphatest.png</file>
    <file>floppybuddy.gif</file>
+    <file>gtk-logo.webm</file>
  </gresource>
  <gresource prefix="/pixbufs">
    <file>apple-red.png</file>
@@ -159,10 +165,10 @@
    <file>expander.c</file>
    <file>filtermodel.c</file>
    <file>fishbowl.c</file>
-    <file>widgetbowl.c</file>
    <file>flowbox.c</file>
    <file>foreigndrawing.c</file>
    <file>font_features.c</file>
+    <file>fontplane.c</file>
    <file>gestures.c</file>
    <file>glarea.c</file>
    <file>headerbar.c</file>
@@ -179,7 +185,11 @@
    <file>modelbutton.c</file>
    <file>overlay.c</file>
    <file>overlay2.c</file>
+    <file>paint.c</file>
    <file>pagesetup.c</file>
+    <file>paintable.c</file>
+    <file>paintable_animated.c</file>
+    <file>paintable_mediastream.c</file>
    <file>panes.c</file>
    <file>pickers.c</file>
    <file>pixbufs.c</file>
@@ -193,6 +203,7 @@
    <file>shortcuts.c</file>
    <file>sizegroup.c</file>
    <file>sidebar.c</file>
+    <file>sliding_puzzle.c</file>
    <file>stack.c</file>
    <file>spinbutton.c</file>
    <file>spinner.c</file>
@@ -200,10 +211,10 @@
    <file>textview.c</file>
    <file>textscroll.c</file>
    <file>theming_style_classes.c</file>
-    <file>toolpalette.c</file>
    <file>transparent.c</file>
    <file>tree_store.c</file>
    <file>textmask.c</file>
+    <file>video_player.c</file>
  </gresource>
  <gresource prefix="/textview">
    <file>floppybuddy.gif</file>
@@ -224,6 +235,7 @@
  </gresource>
  <gresource prefix="/font_features">
    <file>font-features.ui</file>
+    <file>fontplane.c</file>
  </gresource>
  <gresource prefix="/spinbutton">
    <file>spinbutton.ui</file>
@@ -31,16 +31,14 @@
    </accessibility>
  </object>
  <object class="GtkWindow" id="window1">
-    <property name="default_height">250</property>
-    <property name="default_width">440</property>
+    <property name="default-height">250</property>
+    <property name="default-width">440</property>
    <property name="title" translatable="yes">Builder</property>
    <child>
      <object class="GtkBox" id="vbox1">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkMenuBar" id="menubar1">
-            <property name="visible">1</property>
            <child internal-child="accessible">
              <object class="AtkObject" id="a11y-menubar">
                <property name="AtkObject::accessible-name">The menubar</property>
@@ -48,35 +46,30 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_File</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="new_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_New</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="open_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Open</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="save_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Save</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="save_as_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">Save _As</property>
                        <property name="use-underline">1</property>
                        <accelerator key="s" modifiers="primary | shift-mask" signal="activate"/>
@@ -84,12 +77,10 @@
                    </child>
                    <child>
                      <object class="GtkSeparatorMenuItem">
-                        <property name="visible">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="quit_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Quit</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.quit</property>
@@ -101,28 +92,24 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Edit</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="copy_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Copy</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="cut_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Cut</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="paste_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Paste</property>
                        <property name="use-underline">1</property>
                      </object>
@@ -133,14 +120,12 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Help</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="help_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Help</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.help</property>
@@ -148,7 +133,6 @@
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="about_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_About</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.about</property>
@@ -162,7 +146,6 @@
        </child>
        <child>
          <object class="GtkToolbar" id="toolbar1">
-            <property name="visible">1</property>
            <child internal-child="accessible">
              <object class="AtkObject" id="a11y-toolbar">
                <property name="AtkObject::accessible-name">The toolbar</property>
@@ -170,7 +153,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">New</property>
                <property name="tooltip-text" translatable="yes">Create a new file</property>
                <property name="icon-name">document-new</property>
@@ -178,7 +160,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Open</property>
                <property name="tooltip-text" translatable="yes">Open a file</property>
                <property name="icon-name">document-open</property>
@@ -186,7 +167,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Save</property>
                <property name="tooltip-text" translatable="yes">Save a file</property>
                <property name="icon-name">document-save</property>
@@ -195,12 +175,10 @@
            </child>
            <child>
              <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Copy</property>
                <property name="tooltip-text" translatable="yes">Copy selected object into the clipboard</property>
                <property name="icon-name">edit-copy</property>
@@ -208,7 +186,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Cut</property>
                <property name="tooltip-text" translatable="yes">Cut selected object into the clipboard</property>
                <property name="icon-name">edit-cut</property>
@@ -216,7 +193,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Paste</property>
                <property name="tooltip-text" translatable="yes">Paste object from the clipboard</property>
                <property name="icon-name">edit-paste</property>
@@ -229,12 +205,10 @@
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="shadow_type">in</property>
-            <property name="visible">1</property>
+            <property name="shadow-type">in</property>
            <property name="expand">1</property>
            <child>
              <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
                <property name="model">liststore1</property>
                <property name="tooltip-column">3</property>
                <child internal-child="accessible">
@@ -287,7 +261,6 @@
        </child>
        <child>
          <object class="GtkStatusbar" id="statusbar1">
-            <property name="visible">1</property>
          </object>
          <packing>
            <property name="position">3</property>
@@ -299,7 +299,7 @@ pressed_cb (GtkGesture *gesture,
      rect.height = 0;

      gtk_menu_popup_at_rect (GTK_MENU (menu),
-                              gtk_widget_get_window (widget),
+                              gtk_widget_get_surface (widget),
                              &rect,
                              GDK_GRAVITY_NORTH_WEST,
                              GDK_GRAVITY_NORTH_WEST,
@@ -356,10 +356,11 @@ do_dnd (GtkWidget *do_widget)
      gtk_widget_set_hexpand (fixed, TRUE);
      gtk_widget_set_vexpand (fixed, TRUE);

-      multipress = gtk_gesture_multi_press_new (fixed);
+      multipress = gtk_gesture_multi_press_new ();
      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (multipress), 0);
      g_signal_connect (multipress, "pressed", G_CALLBACK (pressed_cb), NULL);
      g_signal_connect (multipress, "released", G_CALLBACK (released_cb), NULL);
+      gtk_widget_add_controller (fixed, GTK_EVENT_CONTROLLER (multipress));

      provider = gtk_css_provider_new ();
      gtk_css_provider_load_from_resource (provider, "/dnd/dnd.css");
@@ -4,8 +4,8 @@
 * of various kinds.
 *
 * This demo has two drawing areas. The checkerboard area shows
- * how you can just draw something; all you have to do is write
- * a signal handler for expose_event, as shown here.
+ * how you can just draw something; all you have to do is set a function
+ * via gtk_drawing_area_set_draw_func(), as shown here.
 *
 * The "scribble" area is a bit more advanced, and shows how to handle
 * events such as button presses and mouse motion. Click the mouse
@@ -86,45 +86,41 @@ draw_brush (GtkWidget *widget,

  cairo_destroy (cr);

-  gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height);
+  gtk_widget_queue_draw (widget);
 }

-static gboolean
-scribble_button_press_event (GtkWidget      *widget,
-                             GdkEventButton *event,
-                             gpointer        data)
+static double start_x;
+static double start_y;
+
+static void
+drag_begin (GtkGestureDrag *gesture,
+            double          x,
+            double          y,
+            GtkWidget      *area)
 {
-  double x, y;
-  guint button;
+  start_x = x;
+  start_y = y;

-  gdk_event_get_button ((GdkEvent *)event, &button);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (button == GDK_BUTTON_PRIMARY)
-    draw_brush (widget, x, y);
-
-  /* We've handled the event, stop processing */
-  return TRUE;
+  draw_brush (area, x, y);
 }

-static gboolean
-scribble_motion_notify_event (GtkWidget      *widget,
-                              GdkEventMotion *event,
-                              gpointer        data)
+static void
+drag_update (GtkGestureDrag *gesture,
+             double          x,
+             double          y,
+             GtkWidget      *area)
 {
-  double x, y;
-  GdkModifierType state;
-
-  gdk_event_get_state ((GdkEvent *)event, &state);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (state & GDK_BUTTON1_MASK)
-    draw_brush (widget, x, y);
-
-  /* We've handled it, stop processing */
-  return TRUE;
+  draw_brush (area, start_x + x, start_y + y);
 }

+static void
+drag_end (GtkGestureDrag *gesture,
+          double          x,
+          double          y,
+          GtkWidget      *area)
+{
+  draw_brush (area, start_x + x, start_y + y);
+}

 static void
 checkerboard_draw (GtkDrawingArea *da,
@@ -141,7 +137,7 @@ checkerboard_draw (GtkDrawingArea *da,
  /* At the start of a draw handler, a clip region has been set on
   * the Cairo context, and the contents have been cleared to the
   * widget's background color. The docs for
-   * gdk_window_begin_paint_region() give more details on how this
+   * gdk_surface_begin_paint_region() give more details on how this
   * works.
   */

@@ -189,6 +185,7 @@ do_drawingarea (GtkWidget *do_widget)
  GtkWidget *vbox;
  GtkWidget *da;
  GtkWidget *label;
+  GtkGesture *drag;

  if (!window)
    {
@@ -247,11 +244,14 @@ do_drawingarea (GtkWidget *do_widget)
      g_signal_connect (da, "size-allocate",
                        G_CALLBACK (scribble_size_allocate), NULL);

-      /* Event signals */
-      g_signal_connect (da, "motion-notify-event",
-                        G_CALLBACK (scribble_motion_notify_event), NULL);
-      g_signal_connect (da, "button-press-event",
-                        G_CALLBACK (scribble_button_press_event), NULL);
+      drag = gtk_gesture_drag_new ();
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (drag), GDK_BUTTON_PRIMARY);
+      gtk_widget_add_controller (da, GTK_EVENT_CONTROLLER (drag));
+
+      g_signal_connect (drag, "drag-begin", G_CALLBACK (drag_begin), da);
+      g_signal_connect (drag, "drag-update", G_CALLBACK (drag_update), da);
+      g_signal_connect (drag, "drag-end", G_CALLBACK (drag_end), da);
+
    }

  if (!gtk_widget_get_visible (window))
@@ -444,7 +444,7 @@ draw_device_info (GtkWidget        *widget,
      g_string_append_printf (string, "\nTool: %s", tool_type);

      if (serial != 0)
-        g_string_append_printf (string, ", Serial: %lx", serial);
+        g_string_append_printf (string, ", Serial: %" G_GINT64_MODIFIER "x", serial);
    }

  cairo_move_to (cr, 10, *y);
@@ -581,8 +581,7 @@ init_pad_controller (GtkWidget *window,
  gint i;

  action_group = g_simple_action_group_new ();
-  pad_controller = gtk_pad_controller_new (GTK_WINDOW (window),
-                                           G_ACTION_GROUP (action_group),
+  pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group),
                                           NULL);

  for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
@@ -607,8 +606,7 @@ init_pad_controller (GtkWidget *window,

  gtk_pad_controller_set_action_entries (pad_controller, pad_actions,
                                         G_N_ELEMENTS (pad_actions));
-  g_object_set_data_full (G_OBJECT (window), "pad-controller",
-                          pad_controller, g_object_unref);
+  gtk_widget_add_controller (window, GTK_EVENT_CONTROLLER (pad_controller));

  g_object_unref (action_group);
 }
@@ -34,31 +34,31 @@
    <property name="title" translatable="yes">Filter Model</property>
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="margin">10</property>
-        <property name="row_spacing">10</property>
-        <property name="column_spacing">10</property>
-        <property name="column_homogeneous">1</property>
+        <property name="row-spacing">10</property>
+        <property name="column-spacing">10</property>
+        <property name="column-homogeneous">1</property>
        <child>
          <object class="GtkLabel" id="label1">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Original</property>
            <property name="xalign">0</property>
            <attributes>
              <attribute name="weight" value="bold"/>
            </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview1"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="model">liststore1</property>
-            <property name="headers_clickable">0</property>
+            <property name="headers-clickable">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection1"/>
            </child>
@@ -84,18 +84,20 @@
                </child>
              </object>
            </child>
+            <accessibility>
+              <relation type="labelled-by" target="label1"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview2">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection3"/>
            </child>
@@ -133,46 +135,52 @@
                </child>
              </object>
            </child>
+            <accessibility>
+              <relation type="labelled-by" target="label2"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label2">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Computed Columns</property>
            <property name="xalign">0</property>
            <attributes>
              <attribute name="weight" value="bold"/>
            </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview2"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label3">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Filtered</property>
            <property name="xalign">0</property>
            <attributes>
              <attribute name="weight" value="bold"/>
            </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview3"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview3">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection5"/>
            </child>
@@ -192,10 +200,13 @@
                </child>
              </object>
            </child>
+            <accessibility>
+              <relation type="labelled-by" target="label3"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
      </object>
@@ -8,165 +8,268 @@
 #include <gtk/gtk.h>

 #include "gtkfishbowl.h"
+#include "gtkgears.h"

-GtkWidget *allow_changes;
+const char *const css =
+".blurred-button {"
+"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
+"}"
+"";

-#define N_STATS 5
+char **icon_names = NULL;
+gsize n_icon_names = 0;

-#define STATS_UPDATE_TIME G_USEC_PER_SEC
+static void
+init_icon_names (GtkIconTheme *theme)
+{
+  GPtrArray *icons;
+  GList *l, *icon_list;

-typedef struct _Stats Stats;
-struct _Stats {
-  gint64 last_stats;
-  gint64 last_frame;
-  gint last_suggestion;
-  guint frame_counter_max;
+  if (icon_names)
+    return;

-  guint stats_index;
-  guint frame_counter[N_STATS];
-  guint item_counter[N_STATS];
+  icon_list = gtk_icon_theme_list_icons (theme, NULL);
+  icons = g_ptr_array_new ();
+
+  for (l = icon_list; l; l = l->next)
+    {
+      if (g_str_has_suffix (l->data, "symbolic"))
+        continue;
+
+      g_ptr_array_add (icons, g_strdup (l->data));
+    }
+
+  n_icon_names = icons->len;
+  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
+  icon_names = (char **) g_ptr_array_free (icons, FALSE);
+
+  /* don't free strings, we assigned them to the array */
+  g_list_free_full (icon_list, g_free);
+}
+
+static const char *
+get_random_icon_name (GtkIconTheme *theme)
+{
+  init_icon_names (theme);
+
+  return icon_names[g_random_int_range(0, n_icon_names)];
+}
+
+GtkWidget *
+create_icon (void)
+{
+  GtkWidget *image;
+
+  image = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
+  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
+
+  return image;
+}
+
+static GtkWidget *
+create_button (void)
+{
+  return gtk_button_new_with_label ("Button");
+}
+
+static GtkWidget *
+create_blurred_button (void)
+{
+  GtkWidget *w = gtk_button_new ();
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
+
+  return w;
+}
+
+static GtkWidget *
+create_font_button (void)
+{
+  return gtk_font_button_new ();
+}
+
+static GtkWidget *
+create_level_bar (void)
+{
+  GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
+
+  gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
+
+  /* Force them to be a bit larger */
+  gtk_widget_set_size_request (w, 200, -1);
+
+  return w;
+}
+
+static GtkWidget *
+create_spinner (void)
+{
+  GtkWidget *w = gtk_spinner_new ();
+
+  gtk_spinner_start (GTK_SPINNER (w));
+
+  return w;
+}
+
+static GtkWidget *
+create_spinbutton (void)
+{
+  GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
+
+  return w;
+}
+
+static GtkWidget *
+create_label (void)
+{
+  GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
+
+  gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
+  gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
+
+  return w;
+}
+
+static GtkWidget *
+create_video (void)
+{
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_image_new_from_paintable (GDK_PAINTABLE (stream));
+  gtk_media_stream_set_loop (stream, TRUE);
+  gtk_media_stream_play (stream);
+  g_object_unref (stream);
+
+  return w;
+}
+
+static GtkWidget *
+create_gears (void)
+{
+  GtkWidget *w = gtk_gears_new ();
+
+  gtk_widget_set_size_request (w, 100, 100);
+
+  return w;
+}
+
+static GtkWidget *
+create_switch (void)
+{
+  GtkWidget *w = gtk_switch_new ();
+
+  gtk_switch_set_state (GTK_SWITCH (w), TRUE);
+
+  return w;
+}
+
+static const struct {
+  const char *name;
+  GtkWidget * (*create_func) (void);
+} widget_types[] = {
+  { "Icon",       create_icon           },
+  { "Button",     create_button         },
+  { "Blurbutton", create_blurred_button },
+  { "Fontbutton", create_font_button    },
+  { "Levelbar",   create_level_bar      },
+  { "Label",      create_label          },
+  { "Spinner",    create_spinner        },
+  { "Spinbutton", create_spinbutton     },
+  { "Video",      create_video          },
+  { "Gears",      create_gears          },
+  { "Switch",     create_switch         },
 };

-static Stats *
-get_stats (GtkWidget *widget)
-{
-  static GQuark stats_quark = 0;
-  Stats *stats;
-
-  if (G_UNLIKELY (stats_quark == 0))
-    stats_quark = g_quark_from_static_string ("stats");
-
-  stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
-  if (stats == NULL)
-    {
-      stats = g_new0 (Stats, 1);
-      g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
-      stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-      stats->last_stats = stats->last_frame;
-    }
-
-  return stats;
-}
+static int selected_widget_type = -1;
+static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);

 static void
-do_stats (GtkWidget *widget,
-          GtkWidget *info_label,
-          gint      *suggested_change)
+set_widget_type (GtkFishbowl *fishbowl,
+                 int          widget_type_index)
 {
-  Stats *stats;
-  gint64 frame_time;
+  GtkWidget *window, *headerbar;

-  stats = get_stats (widget);
-  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
+  if (widget_type_index == selected_widget_type)
+    return;

-  if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
-    {
-      char *new_label;
-      guint i, n_frames;
+  selected_widget_type = widget_type_index;

-      n_frames = 0;
-      for (i = 0; i < N_STATS; i++)
-        {
-          n_frames += stats->frame_counter[i];
-        }
-      
-      new_label = g_strdup_printf ("icons - %.1f fps",
-                                   (double) G_USEC_PER_SEC * n_frames
-                                       / (N_STATS * STATS_UPDATE_TIME));
-      gtk_label_set_label (GTK_LABEL (info_label), new_label);
-      g_free (new_label);
+  gtk_fishbowl_set_creation_func (fishbowl,
+                                  widget_types[selected_widget_type].create_func);

-      if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
-        {
-          if (stats->last_suggestion > 0)
-            stats->last_suggestion *= 2;
-          else
-            stats->last_suggestion = 1;
-        }
-      else
-        {
-          if (stats->last_suggestion < 0)
-            stats->last_suggestion--;
-          else
-            stats->last_suggestion = -1;
-          stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
-        }
+  window = gtk_widget_get_toplevel (GTK_WIDGET (fishbowl));
+  headerbar = gtk_window_get_titlebar (GTK_WINDOW (window));
+  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
+                            widget_types[selected_widget_type].name);
+}

-      stats->stats_index = (stats->stats_index + 1) % N_STATS;
-      stats->frame_counter[stats->stats_index] = 0;
-      stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
-      stats->last_stats = frame_time;
-      
-      if (suggested_change)
-        *suggested_change = stats->last_suggestion;
-      else
-        stats->last_suggestion = 0;
-    }
+void
+next_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
+{
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;
+
+  if (selected_widget_type + 1 >= N_WIDGET_TYPES)
+    new_index = 0;
  else
-    {
-      if (suggested_change)
-        *suggested_change = 0;
-    }
+    new_index = selected_widget_type + 1;

-  stats->last_frame = frame_time;
-  stats->frame_counter[stats->stats_index]++;
-  stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
+  set_widget_type (fishbowl, new_index);
 }

-static void
-stats_update (GtkWidget *widget)
+void
+prev_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
 {
-  Stats *stats;
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;

-  stats = get_stats (widget);
+  if (selected_widget_type - 1 < 0)
+    new_index = N_WIDGET_TYPES - 1;
+  else
+    new_index = selected_widget_type - 1;

-  stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
+  set_widget_type (fishbowl, new_index);
 }

-static gboolean
-move_fish (GtkWidget     *bowl,
-           GdkFrameClock *frame_clock,
-           gpointer       info_label)
-{
-  gint suggested_change = 0;
-  
-  do_stats (bowl,
-            info_label,
-            !gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (allow_changes)) ? &suggested_change : NULL);
-
-  gtk_fishbowl_set_count (GTK_FISHBOWL (bowl),
-                          gtk_fishbowl_get_count (GTK_FISHBOWL (bowl)) + suggested_change);
-  stats_update (bowl);
-
-  return G_SOURCE_CONTINUE;
-}

 GtkWidget *
 do_fishbowl (GtkWidget *do_widget)
 {
  static GtkWidget *window = NULL;
+  static GtkCssProvider *provider = NULL;
+
+  if (provider == NULL)
+    {
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_data (provider, css, -1);
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    }

  if (!window)
    {
      GtkBuilder *builder;
-      GtkWidget *bowl, *info_label;
+      GtkWidget *bowl;

      g_type_ensure (GTK_TYPE_FISHBOWL);

      builder = gtk_builder_new_from_resource ("/fishbowl/fishbowl.ui");
+      gtk_builder_add_callback_symbols (builder,
+                                        "next_button_clicked_cb", G_CALLBACK (next_button_clicked_cb),
+                                        "prev_button_clicked_cb", G_CALLBACK (prev_button_clicked_cb),
+                                        NULL);
      gtk_builder_connect_signals (builder, NULL);
      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
      bowl = GTK_WIDGET (gtk_builder_get_object (builder, "bowl"));
-      gtk_fishbowl_set_use_icons (GTK_FISHBOWL (bowl), TRUE);
-      info_label = GTK_WIDGET (gtk_builder_get_object (builder, "info_label"));
-      allow_changes = GTK_WIDGET (gtk_builder_get_object (builder, "changes_allow"));
+      set_widget_type (GTK_FISHBOWL (bowl), 0);
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
      g_signal_connect (window, "destroy",
                        G_CALLBACK (gtk_widget_destroyed), &window);

      gtk_widget_realize (window);
-      gtk_widget_add_tick_callback (bowl, move_fish, info_label, NULL);
    }

  if (!gtk_widget_get_visible (window))
@@ -5,34 +5,66 @@
    <property name="title" translatable="yes">Fishbowl</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
-        <property name="visible">True</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
        <child>
-          <object class="GtkLabel" id="info_label">
-            <property name="visible">True</property>
+          <object class="GtkBox">
+            <style>
+              <class name="linked"/>
+            </style>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-start-symbolic</property>
+                <signal name="clicked" handler="prev_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-end-symbolic</property>
+                <signal name="clicked" handler="next_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">fps</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="label" bind-source="bowl" bind-property="count">0</property>
+            <property name="label" bind-source="bowl" bind-property="framerate"/>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">Icons, </property>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label" bind-source="bowl" bind-property="count"/>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
          <object class="GtkToggleButton" id="changes_allow">
-            <property name="active">False</property>
-            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">True</property>
+            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-allow</property>
            <property name="relief">none</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
@@ -43,7 +75,7 @@
            <property name="relief">none</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
      </object>
@@ -52,6 +84,7 @@
      <object class="GtkFishbowl" id="bowl">
        <property name="visible">True</property>
        <property name="animating">True</property>
+        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">True</property>
      </object>
    </child>
  </object>
@@ -0,0 +1,315 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "fontplane.h"
+
+#include "gtk.h"
+
+enum {
+  PROP_0,
+  PROP_WEIGHT_ADJUSTMENT,
+  PROP_WIDTH_ADJUSTMENT
+};
+
+G_DEFINE_TYPE (GtkFontPlane, gtk_font_plane, GTK_TYPE_WIDGET)
+
+static double
+adjustment_get_normalized_value (GtkAdjustment *adj)
+{
+  return (gtk_adjustment_get_value (adj) - gtk_adjustment_get_lower (adj)) /
+        (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj));
+}
+
+static void
+val_to_xy (GtkFontPlane *plane,
+           gint          *x,
+           gint          *y)
+{
+  gdouble u, v;
+  gint width, height;
+
+  width = gtk_widget_get_allocated_width (GTK_WIDGET (plane));
+  height = gtk_widget_get_allocated_height (GTK_WIDGET (plane));
+
+  u = adjustment_get_normalized_value (plane->width_adj);
+  v = adjustment_get_normalized_value (plane->weight_adj);
+
+  *x = CLAMP (width * u, 0, width - 1);
+  *y = CLAMP (height * (1 - v), 0, height - 1);
+}
+
+static void
+plane_snapshot (GtkWidget   *widget,
+                GtkSnapshot *snapshot)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (widget);
+  gint x, y;
+  gint width, height;
+  cairo_t *cr;
+
+  val_to_xy (plane, &x, &y);
+  width = gtk_widget_get_allocated_width (widget);
+  height = gtk_widget_get_allocated_height (widget);
+
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT (0, 0, width, height));
+
+  cairo_set_source_rgb (cr, 0, 0, 0);
+  cairo_rectangle (cr, 0, 0, width, height);
+  cairo_paint (cr);
+
+  cairo_move_to (cr, 0,     y + 0.5);
+  cairo_line_to (cr, width, y + 0.5);
+
+  cairo_move_to (cr, x + 0.5, 0);
+  cairo_line_to (cr, x + 0.5, height);
+
+  if (gtk_widget_has_visible_focus (widget))
+    {
+      cairo_set_line_width (cr, 3.0);
+      cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.6);
+      cairo_stroke_preserve (cr);
+
+      cairo_set_line_width (cr, 1.0);
+      cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.8);
+      cairo_stroke (cr);
+    }
+  else
+    {
+      cairo_set_line_width (cr, 1.0);
+      cairo_set_source_rgba (cr, 0.8, 0.8, 0.8, 0.8);
+      cairo_stroke (cr);
+    }
+
+  cairo_destroy (cr);
+}
+
+static void
+set_cross_cursor (GtkWidget *widget,
+                  gboolean   enabled)
+{
+  if (enabled)
+    gtk_widget_set_cursor_from_name (widget, "crosshair");
+  else
+    gtk_widget_set_cursor (widget, NULL);
+}
+
+static void
+adj_changed (GtkFontPlane *plane)
+{
+  gtk_widget_queue_draw (GTK_WIDGET (plane));
+}
+
+static void
+adjustment_set_normalized_value (GtkAdjustment *adj,
+                                 double         val)
+{
+  gtk_adjustment_set_value (adj,
+      gtk_adjustment_get_lower (adj) +
+          val * (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj)));
+}
+
+static void
+update_value (GtkFontPlane *plane,
+              gint           x,
+              gint           y)
+{
+  GtkWidget *widget = GTK_WIDGET (plane);
+  gdouble u, v;
+
+  u = CLAMP (x * (1.0 / gtk_widget_get_allocated_width (widget)), 0, 1);
+  v = CLAMP (1 - y * (1.0 / gtk_widget_get_allocated_height (widget)), 0, 1);
+
+  adjustment_set_normalized_value (plane->width_adj, u);
+  adjustment_set_normalized_value (plane->weight_adj, v);
+
+  gtk_widget_queue_draw (widget);
+}
+
+static void
+hold_action (GtkGestureLongPress *gesture,
+             gdouble              x,
+             gdouble              y,
+             GtkFontPlane       *plane)
+{
+  gboolean handled;
+
+  g_signal_emit_by_name (plane, "popup-menu", &handled);
+}
+
+static void
+plane_drag_gesture_begin (GtkGestureDrag *gesture,
+                          gdouble         start_x,
+                          gdouble         start_y,
+                          GtkFontPlane  *plane)
+{
+  guint button;
+
+  button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
+
+  if (button == GDK_BUTTON_SECONDARY)
+    {
+      gboolean handled;
+
+      g_signal_emit_by_name (plane, "popup-menu", &handled);
+    }
+
+  if (button != GDK_BUTTON_PRIMARY)
+    {
+      gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
+      return;
+    }
+
+  set_cross_cursor (GTK_WIDGET (plane), TRUE);
+  update_value (plane, start_x, start_y);
+  gtk_widget_grab_focus (GTK_WIDGET (plane));
+  gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
+}
+
+static void
+plane_drag_gesture_update (GtkGestureDrag *gesture,
+                           gdouble         offset_x,
+                           gdouble         offset_y,
+                           GtkFontPlane  *plane)
+{
+  gdouble start_x, start_y;
+
+  gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (gesture),
+                                    &start_x, &start_y);
+  update_value (plane, start_x + offset_x, start_y + offset_y);
+}
+
+static void
+plane_drag_gesture_end (GtkGestureDrag *gesture,
+                        gdouble         offset_x,
+                        gdouble         offset_y,
+                        GtkFontPlane  *plane)
+{
+  set_cross_cursor (GTK_WIDGET (plane), FALSE);
+}
+
+static void
+gtk_font_plane_init (GtkFontPlane *plane)
+{
+  GtkGesture *gesture;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (plane), FALSE);
+  gtk_widget_set_can_focus (GTK_WIDGET (plane), TRUE);
+
+  gesture = gtk_gesture_drag_new ();
+  g_signal_connect (gesture, "drag-begin",
+		    G_CALLBACK (plane_drag_gesture_begin), plane);
+  g_signal_connect (gesture, "drag-update",
+		    G_CALLBACK (plane_drag_gesture_update), plane);
+  g_signal_connect (gesture, "drag-end",
+		    G_CALLBACK (plane_drag_gesture_end), plane);
+  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0);
+  gtk_widget_add_controller (GTK_WIDGET (plane), GTK_EVENT_CONTROLLER (gesture));
+
+  gesture = gtk_gesture_long_press_new ();
+  g_signal_connect (gesture, "pressed",
+                    G_CALLBACK (hold_action), plane);
+  gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture),
+                                     TRUE);
+  gtk_widget_add_controller (GTK_WIDGET (plane), GTK_EVENT_CONTROLLER (gesture));
+}
+
+static void
+plane_finalize (GObject *object)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (object);
+
+  g_clear_object (&plane->weight_adj);
+  g_clear_object (&plane->width_adj);
+
+  G_OBJECT_CLASS (gtk_font_plane_parent_class)->finalize (object);
+}
+
+static void
+plane_set_property (GObject      *object,
+		    guint         prop_id,
+		    const GValue *value,
+		    GParamSpec   *pspec)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (object);
+  GtkAdjustment *adjustment;
+
+  switch (prop_id)
+    {
+    case PROP_WEIGHT_ADJUSTMENT:
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
+      if (adjustment)
+	{
+	  plane->weight_adj = g_object_ref_sink (adjustment);
+	  g_signal_connect_swapped (adjustment, "value-changed", G_CALLBACK (adj_changed), plane);
+	}
+      break;
+    case PROP_WIDTH_ADJUSTMENT:
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
+      if (adjustment)
+	{
+	  plane->width_adj = g_object_ref_sink (adjustment);
+	  g_signal_connect_swapped (adjustment, "value-changed", G_CALLBACK (adj_changed), plane);
+	}
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_font_plane_class_init (GtkFontPlaneClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->finalize = plane_finalize;
+  object_class->set_property = plane_set_property;
+
+  widget_class->snapshot = plane_snapshot;
+
+  g_object_class_install_property (object_class,
+                                   PROP_WEIGHT_ADJUSTMENT,
+                                   g_param_spec_object ("weight-adjustment",
+                                                        NULL,
+                                                        NULL,
+							GTK_TYPE_ADJUSTMENT,
+							G_PARAM_WRITABLE |
+							G_PARAM_CONSTRUCT_ONLY));
+
+  g_object_class_install_property (object_class,
+                                   PROP_WIDTH_ADJUSTMENT,
+                                   g_param_spec_object ("width-adjustment",
+                                                        NULL,
+                                                        NULL,
+							GTK_TYPE_ADJUSTMENT,
+							G_PARAM_WRITABLE |
+							G_PARAM_CONSTRUCT_ONLY));
+}
+
+GtkWidget *
+gtk_font_plane_new (GtkAdjustment *weight_adj,
+                     GtkAdjustment *width_adj)
+{
+  return g_object_new (GTK_TYPE_FONT_PLANE,
+                       "weight-adjustment", weight_adj,
+                       "width-adjustment", width_adj,
+                       NULL);
+}
@@ -0,0 +1,64 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GTK_FONT_PLANE_H__
+#define __GTK_FONT_PLANE_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_FONT_PLANE            (gtk_font_plane_get_type ())
+#define GTK_FONT_PLANE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_FONT_PLANE, GtkFontPlane))
+#define GTK_FONT_PLANE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FONT_PLANE, GtkFontPlaneClass))
+#define GTK_IS_FONT_PLANE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_COLOR_PLANE))
+#define GTK_IS_FONT_PLANE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_COLOR_PLANE))
+#define GTK_FONT_PLANE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FONT_PLANE, GtkFontPlaneClass))
+
+
+typedef struct _GtkFontPlane         GtkFontPlane;
+typedef struct _GtkFontPlaneClass    GtkFontPlaneClass;
+
+struct _GtkFontPlane
+{
+  GtkWidget parent_instance;
+
+  GtkAdjustment *weight_adj;
+  GtkAdjustment *width_adj;
+
+  GtkGesture *drag_gesture;
+};
+
+struct _GtkFontPlaneClass
+{
+  GtkWidgetClass parent_class;
+
+  /* Padding for future expansion */
+  void (*_gtk_reserved1) (void);
+  void (*_gtk_reserved2) (void);
+  void (*_gtk_reserved3) (void);
+  void (*_gtk_reserved4) (void);
+};
+
+
+GType       gtk_font_plane_get_type (void) G_GNUC_CONST;
+GtkWidget * gtk_font_plane_new      (GtkAdjustment *width_adj,
+                                     GtkAdjustment *weight_adj);
+
+G_END_DECLS
+
+#endif /* __GTK_FONT_PLANE_H__ */
@@ -33,7 +33,7 @@ demos = []
 for demo_file in in_files:
    filename =  demo_file[demo_file.rfind('/')+1:]
    demo_name = filename.replace(".c", "")
-    with open(demo_file, 'r') as f:
+    with open(demo_file, 'r', encoding='utf-8') as f:
        title = f.readline().replace("/*", "").strip()


@@ -157,16 +157,15 @@ do_gestures (GtkWidget *do_widget)
                                      NULL, NULL);

      /* Swipe */
-      gesture = gtk_gesture_swipe_new (drawing_area);
+      gesture = gtk_gesture_swipe_new ();
      g_signal_connect (gesture, "swipe",
                        G_CALLBACK (swipe_gesture_swept), drawing_area);
      gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                  GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));

      /* 3fg swipe for touchpads */
      gesture = g_object_new (GTK_TYPE_GESTURE_SWIPE,
-                              "widget", drawing_area,
                              "n-points", 3,
                              NULL);
      g_signal_connect (gesture, "begin",
@@ -175,33 +174,34 @@ do_gestures (GtkWidget *do_widget)
                        G_CALLBACK (swipe_gesture_swept), drawing_area);
      gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                  GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
+

      /* Long press */
-      gesture = gtk_gesture_long_press_new (drawing_area);
+      gesture = gtk_gesture_long_press_new ();
      g_signal_connect (gesture, "pressed",
                        G_CALLBACK (long_press_gesture_pressed), drawing_area);
      g_signal_connect (gesture, "end",
                        G_CALLBACK (long_press_gesture_end), drawing_area);
      gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                  GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));

      /* Rotate */
-      rotate = gesture = gtk_gesture_rotate_new (drawing_area);
+      rotate = gesture = gtk_gesture_rotate_new ();
      g_signal_connect (gesture, "angle-changed",
                        G_CALLBACK (rotation_angle_changed), drawing_area);
      gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                  GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));

      /* Zoom */
-      zoom = gesture = gtk_gesture_zoom_new (drawing_area);
+      zoom = gesture = gtk_gesture_zoom_new ();
      g_signal_connect (gesture, "scale-changed",
                        G_CALLBACK (zoom_scale_changed), drawing_area);
      gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                  GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
    }

  if (!gtk_widget_get_visible (window))
@@ -24,13 +24,18 @@ typedef struct _GtkFishbowlChild         GtkFishbowlChild;

 struct _GtkFishbowlPrivate
 {
+  GtkFishCreationFunc creation_func;
  GList *children;
  guint count;

  gint64 last_frame_time;
+  gint64 update_delay;
  guint tick_id;

-  guint use_icons: 1;
+  double framerate;
+  int last_benchmark_change;
+
+  guint benchmark : 1;
 };

 struct _GtkFishbowlChild
@@ -45,18 +50,25 @@ struct _GtkFishbowlChild
 enum {
   PROP_0,
   PROP_ANIMATING,
+   PROP_BENCHMARK,
   PROP_COUNT,
+   PROP_FRAMERATE,
+   PROP_UPDATE_DELAY,
   NUM_PROPERTIES
 };

 static GParamSpec *props[NUM_PROPERTIES] = { NULL, };

-G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_CONTAINER)
+G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_WIDGET)

 static void
 gtk_fishbowl_init (GtkFishbowl *fishbowl)
 {
-  gtk_widget_set_has_window (GTK_WIDGET (fishbowl), FALSE);
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  gtk_widget_set_has_surface (GTK_WIDGET (fishbowl), FALSE);
+
+  priv->update_delay = G_USEC_PER_SEC;
 }

 /**
@@ -72,15 +84,6 @@ gtk_fishbowl_new (void)
  return g_object_new (GTK_TYPE_FISHBOWL, NULL);
 }

-void
-gtk_fishbowl_set_use_icons (GtkFishbowl *fishbowl,
-                            gboolean     use_icons)
-{
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-
-  priv->use_icons = use_icons;
-}
-
 static void
 gtk_fishbowl_measure (GtkWidget      *widget,
                      GtkOrientation  orientation,
@@ -127,8 +130,7 @@ gtk_fishbowl_measure (GtkWidget      *widget,
 static void
 gtk_fishbowl_size_allocate (GtkWidget           *widget,
                            const GtkAllocation *allocation,
-                            int                  baseline,
-                            GtkAllocation       *out_clip)
+                            int                  baseline)
 {
  GtkFishbowl *fishbowl = GTK_FISHBOWL (widget);
  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
@@ -139,8 +141,6 @@ gtk_fishbowl_size_allocate (GtkWidget           *widget,

  for (children = priv->children; children; children = children->next)
    {
-      GtkAllocation child_clip;
-
      child = children->data;

      if (!gtk_widget_get_visible (child->widget))
@@ -152,7 +152,7 @@ gtk_fishbowl_size_allocate (GtkWidget           *widget,
      child_allocation.width = child_requisition.width;
      child_allocation.height = child_requisition.height;

-      gtk_widget_size_allocate (child->widget, &child_allocation, -1, &child_clip);
+      gtk_widget_size_allocate (child->widget, &child_allocation, -1);
    }
 }

@@ -164,10 +164,9 @@ new_speed (void)
 }

 static void
-gtk_fishbowl_add (GtkContainer *container,
-                  GtkWidget    *widget)
+gtk_fishbowl_add (GtkFishbowl *fishbowl,
+                  GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
  GtkFishbowlChild *child_info;

@@ -189,13 +188,12 @@ gtk_fishbowl_add (GtkContainer *container,
 }

 static void
-gtk_fishbowl_remove (GtkContainer *container,
-                     GtkWidget    *widget)
+gtk_fishbowl_remove (GtkFishbowl *fishbowl,
+                     GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
  GtkFishbowlChild *child;
-  GtkWidget *widget_container = GTK_WIDGET (container);
+  GtkWidget *widget_bowl = GTK_WIDGET (fishbowl);
  GList *children;

  for (children = priv->children; children; children = children->next)
@@ -212,8 +210,8 @@ gtk_fishbowl_remove (GtkContainer *container,
          g_list_free (children);
          g_free (child);

-          if (was_visible && gtk_widget_get_visible (widget_container))
-            gtk_widget_queue_resize (widget_container);
+          if (was_visible && gtk_widget_get_visible (widget_bowl))
+            gtk_widget_queue_resize (widget_bowl);

          priv->count--;
          g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_COUNT]);
@@ -222,26 +220,6 @@ gtk_fishbowl_remove (GtkContainer *container,
    }
 }

-static void
-gtk_fishbowl_forall (GtkContainer *container,
-                     GtkCallback   callback,
-                     gpointer      callback_data)
-{
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-  GtkFishbowlChild *child;
-  GList *children;
-
-  children = priv->children;
-  while (children)
-    {
-      child = children->data;
-      children = children->next;
-
-      (* callback) (child->widget, callback_data);
-    }
-}
-
 static void
 gtk_fishbowl_dispose (GObject *object)
 {
@@ -267,10 +245,18 @@ gtk_fishbowl_set_property (GObject         *object,
      gtk_fishbowl_set_animating (fishbowl, g_value_get_boolean (value));
      break;

+    case PROP_BENCHMARK:
+      gtk_fishbowl_set_benchmark (fishbowl, g_value_get_boolean (value));
+      break;
+
    case PROP_COUNT:
      gtk_fishbowl_set_count (fishbowl, g_value_get_uint (value));
      break;

+    case PROP_UPDATE_DELAY:
+      gtk_fishbowl_set_update_delay (fishbowl, g_value_get_int64 (value));
+      break;
+
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
@@ -291,10 +277,22 @@ gtk_fishbowl_get_property (GObject         *object,
      g_value_set_boolean (value, gtk_fishbowl_get_animating (fishbowl));
      break;

+    case PROP_BENCHMARK:
+      g_value_set_boolean (value, gtk_fishbowl_get_benchmark (fishbowl));
+      break;
+
    case PROP_COUNT:
      g_value_set_uint (value, gtk_fishbowl_get_count (fishbowl));
      break;

+    case PROP_FRAMERATE:
+      g_value_set_double (value, gtk_fishbowl_get_framerate (fishbowl));
+      break;
+
+    case PROP_UPDATE_DELAY:
+      g_value_set_int64 (value, gtk_fishbowl_get_update_delay (fishbowl));
+      break;
+
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
@@ -306,7 +304,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
 {
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);

  object_class->dispose = gtk_fishbowl_dispose;
  object_class->set_property = gtk_fishbowl_set_property;
@@ -315,10 +312,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
  widget_class->measure = gtk_fishbowl_measure;
  widget_class->size_allocate = gtk_fishbowl_size_allocate;

-  container_class->add = gtk_fishbowl_add;
-  container_class->remove = gtk_fishbowl_remove;
-  container_class->forall = gtk_fishbowl_forall;
-
  props[PROP_ANIMATING] =
      g_param_spec_boolean ("animating",
                            "animating",
@@ -326,13 +319,36 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
                            FALSE,
                            G_PARAM_READWRITE);

+  props[PROP_BENCHMARK] =
+      g_param_spec_boolean ("benchmark",
+                            "Benchmark",
+                            "Adapt the count property to hit the maximum framerate",
+                            FALSE,
+                            G_PARAM_READWRITE);
+
  props[PROP_COUNT] =
      g_param_spec_uint ("count",
                         "Count",
                         "Number of widgets",
                         0, G_MAXUINT,
                         0,
-                         G_PARAM_READABLE);
+                         G_PARAM_READWRITE);
+
+  props[PROP_FRAMERATE] =
+      g_param_spec_double ("framerate",
+                           "Framerate",
+                           "Framerate of this widget in frames per second",
+                           0, G_MAXDOUBLE,
+                           0,
+                           G_PARAM_READABLE);
+
+  props[PROP_UPDATE_DELAY] =
+      g_param_spec_int64 ("update-delay",
+                          "Update delay",
+                          "Number of usecs between updates",
+                          0, G_MAXINT64,
+                          G_USEC_PER_SEC,
+                          G_PARAM_READWRITE);

  g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
 }
@@ -345,96 +361,58 @@ gtk_fishbowl_get_count (GtkFishbowl *fishbowl)
  return priv->count;
 }

-char **icon_names = NULL;
-gsize n_icon_names = 0;
-
-static void
-init_icon_names (GtkIconTheme *theme)
-{
-  GPtrArray *icons;
-  GList *l, *icon_list;
-
-  if (icon_names)
-    return;
-
-  icon_list = gtk_icon_theme_list_icons (theme, NULL);
-  icons = g_ptr_array_new ();
-
-  for (l = icon_list; l; l = l->next)
-    {
-      if (g_str_has_suffix (l->data, "symbolic"))
-        continue;
-
-      g_ptr_array_add (icons, g_strdup (l->data));
-    }
-
-  n_icon_names = icons->len;
-  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
-  icon_names = (char **) g_ptr_array_free (icons, FALSE);
-
-  /* don't free strings, we assigned them to the array */
-  g_list_free_full (icon_list, g_free);
-}
-
-static const char *
-get_random_icon_name (GtkIconTheme *theme)
-{
-  init_icon_names (theme);
-
-  return icon_names[g_random_int_range(0, n_icon_names)];
-}
-
-static GType
-get_random_widget_type ()
-{
-  GType types[] = {
-    GTK_TYPE_SWITCH,
-    GTK_TYPE_BUTTON,
-    GTK_TYPE_ENTRY,
-    GTK_TYPE_SPIN_BUTTON,
-    GTK_TYPE_FONT_BUTTON,
-    GTK_TYPE_SCROLLBAR,
-    GTK_TYPE_SCALE,
-    GTK_TYPE_LEVEL_BAR,
-    GTK_TYPE_PROGRESS_BAR,
-    GTK_TYPE_RADIO_BUTTON,
-    GTK_TYPE_CHECK_BUTTON
-  };
-  return types[g_random_int_range (0, G_N_ELEMENTS (types))];
-}
-
 void
 gtk_fishbowl_set_count (GtkFishbowl *fishbowl,
                        guint        count)
 {
  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);

+  if (priv->count == count)
+    return;
+
  g_object_freeze_notify (G_OBJECT (fishbowl));

  while (priv->count > count)
    {
-      gtk_container_remove (GTK_CONTAINER (fishbowl),
-                            ((GtkFishbowlChild *) priv->children->data)->widget);
+      gtk_fishbowl_remove (fishbowl, gtk_widget_get_first_child (GTK_WIDGET (fishbowl)));
    }

  while (priv->count < count)
    {
      GtkWidget *new_widget;

-      if (priv->use_icons)
-        {
-          new_widget = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
-          gtk_image_set_icon_size (GTK_IMAGE (new_widget), GTK_ICON_SIZE_LARGE);
-        }
-      else
-        new_widget = g_object_new (get_random_widget_type (), NULL);
+      new_widget = priv->creation_func ();

-      gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
+      gtk_fishbowl_add (fishbowl, new_widget);
    }

  g_object_thaw_notify (G_OBJECT (fishbowl));
 }

+gboolean
+gtk_fishbowl_get_benchmark (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->benchmark;
+}
+
+void
+gtk_fishbowl_set_benchmark (GtkFishbowl *fishbowl,
+                            gboolean     benchmark)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->benchmark == benchmark)
+    return;
+
+  priv->benchmark = benchmark;
+  if (!benchmark)
+    priv->last_benchmark_change = 0;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_BENCHMARK]);
+}
+
 gboolean
 gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
 {
@@ -443,6 +421,111 @@ gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
  return priv->tick_id != 0;
 }

+static gint64
+guess_refresh_interval (GdkFrameClock *frame_clock)
+{
+  gint64 interval;
+  gint64 i;
+
+  interval = G_MAXINT64;
+
+  for (i = gdk_frame_clock_get_history_start (frame_clock);
+       i < gdk_frame_clock_get_frame_counter (frame_clock);
+       i++)
+    {
+      GdkFrameTimings *t, *before;
+      gint64 ts, before_ts;
+
+      t = gdk_frame_clock_get_timings (frame_clock, i);
+      before = gdk_frame_clock_get_timings (frame_clock, i - 1);
+      if (t == NULL || before == NULL)
+        continue;
+
+      ts = gdk_frame_timings_get_frame_time (t);
+      before_ts = gdk_frame_timings_get_frame_time (before);
+      if (ts == 0 || before_ts == 0)
+        continue;
+
+      interval = MIN (interval, ts - before_ts);
+    }
+
+  if (interval == G_MAXINT64)
+    return 0;
+
+  return interval;
+}
+
+static void
+gtk_fishbowl_do_update (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+  GdkFrameClock *frame_clock;
+  GdkFrameTimings *start, *end;
+  gint64 start_counter, end_counter;
+  gint64 n_frames, expected_frames;
+  gint64 start_timestamp, end_timestamp;
+  gint64 interval;
+
+  frame_clock = gtk_widget_get_frame_clock (GTK_WIDGET (fishbowl));
+  if (frame_clock == NULL)
+    return;
+
+  start_counter = gdk_frame_clock_get_history_start (frame_clock);
+  end_counter = gdk_frame_clock_get_frame_counter (frame_clock);
+  start = gdk_frame_clock_get_timings (frame_clock, start_counter);
+  for (end = gdk_frame_clock_get_timings (frame_clock, end_counter);
+       end_counter > start_counter && end != NULL && !gdk_frame_timings_get_complete (end);
+       end = gdk_frame_clock_get_timings (frame_clock, end_counter))
+    end_counter--;
+  if (end_counter - start_counter < 4)
+    return;
+
+  start_timestamp = gdk_frame_timings_get_presentation_time (start);
+  end_timestamp = gdk_frame_timings_get_presentation_time (end);
+  if (start_timestamp == 0 || end_timestamp == 0)
+    {
+      start_timestamp = gdk_frame_timings_get_frame_time (start);
+      end_timestamp = gdk_frame_timings_get_frame_time (end);
+    }
+
+  n_frames = end_counter - start_counter;
+  priv->framerate = ((double) n_frames) * G_USEC_PER_SEC / (end_timestamp - start_timestamp);
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
+
+  if (!priv->benchmark)
+    return;
+
+  interval = gdk_frame_timings_get_refresh_interval (end);
+  if (interval == 0)
+    {
+      interval = guess_refresh_interval (frame_clock);
+      if (interval == 0)
+        return;
+    }
+  expected_frames = round ((double) (end_timestamp - start_timestamp) / interval);
+
+  if (n_frames >= expected_frames)
+    {
+      if (priv->last_benchmark_change > 0)
+        priv->last_benchmark_change *= 2;
+      else
+        priv->last_benchmark_change = 1;
+    }
+  else if (n_frames + 1 < expected_frames)
+    {
+      if (priv->last_benchmark_change < 0)
+        priv->last_benchmark_change--;
+      else
+        priv->last_benchmark_change = -1;
+    }
+  else
+    {
+      priv->last_benchmark_change = 0;
+    }
+
+  gtk_fishbowl_set_count (fishbowl, MAX (1, (int) priv->count + priv->last_benchmark_change));
+}
+
 static gboolean
 gtk_fishbowl_tick (GtkWidget     *widget,
                   GdkFrameClock *frame_clock,
@@ -453,9 +536,11 @@ gtk_fishbowl_tick (GtkWidget     *widget,
  GtkFishbowlChild *child;
  GList *l;
  gint64 frame_time, elapsed;
+  gboolean do_update;

  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
  elapsed = frame_time - priv->last_frame_time;
+  do_update = frame_time / priv->update_delay != priv->last_frame_time / priv->update_delay;
  priv->last_frame_time = frame_time;

  /* last frame was 0, so we're just starting to animate */
@@ -494,6 +579,9 @@ gtk_fishbowl_tick (GtkWidget     *widget,

  gtk_widget_queue_allocate (widget);

+  if (do_update)
+    gtk_fishbowl_do_update (fishbowl);
+
  return G_SOURCE_CONTINUE;
 }

@@ -518,8 +606,57 @@ gtk_fishbowl_set_animating (GtkFishbowl *fishbowl,
      priv->last_frame_time = 0;
      gtk_widget_remove_tick_callback (GTK_WIDGET (fishbowl), priv->tick_id);
      priv->tick_id = 0;
+      priv->framerate = 0;
+      g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
    }

  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_ANIMATING]);
 }

+double
+gtk_fishbowl_get_framerate (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->framerate;
+}
+
+gint64
+gtk_fishbowl_get_update_delay (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->update_delay;
+}
+
+void
+gtk_fishbowl_set_update_delay (GtkFishbowl *fishbowl,
+                               gint64       update_delay)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->update_delay == update_delay)
+    return;
+
+  priv->update_delay = update_delay;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_UPDATE_DELAY]);
+}
+
+void
+gtk_fishbowl_set_creation_func (GtkFishbowl         *fishbowl,
+                                GtkFishCreationFunc  creation_func)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  g_object_freeze_notify (G_OBJECT (fishbowl));
+
+  gtk_fishbowl_set_count (fishbowl, 0);
+  priv->last_benchmark_change = 0;
+
+  priv->creation_func = creation_func;
+
+  gtk_fishbowl_set_count (fishbowl, 1);
+
+  g_object_thaw_notify (G_OBJECT (fishbowl));
+}
@@ -32,29 +32,37 @@ G_BEGIN_DECLS
 typedef struct _GtkFishbowl              GtkFishbowl;
 typedef struct _GtkFishbowlClass         GtkFishbowlClass;

+typedef GtkWidget * (* GtkFishCreationFunc) (void);
+
 struct _GtkFishbowl
 {
-  GtkContainer container;
+  GtkWidget parent;
 };

 struct _GtkFishbowlClass
 {
-  GtkContainerClass parent_class;
+  GtkWidgetClass parent_class;
 };

 GType      gtk_fishbowl_get_type          (void) G_GNUC_CONST;

 GtkWidget* gtk_fishbowl_new               (void);

-void       gtk_fishbowl_set_use_icons     (GtkFishbowl       *fishbowl,
-                                           gboolean           use_icons);
-
 guint      gtk_fishbowl_get_count         (GtkFishbowl       *fishbowl);
 void       gtk_fishbowl_set_count         (GtkFishbowl       *fishbowl,
                                           guint              count);
 gboolean   gtk_fishbowl_get_animating     (GtkFishbowl       *fishbowl);
 void       gtk_fishbowl_set_animating     (GtkFishbowl       *fishbowl,
                                           gboolean           animating);
+gboolean   gtk_fishbowl_get_benchmark     (GtkFishbowl       *fishbowl);
+void       gtk_fishbowl_set_benchmark     (GtkFishbowl       *fishbowl,
+                                           gboolean           animating);
+double     gtk_fishbowl_get_framerate     (GtkFishbowl       *fishbowl);
+gint64     gtk_fishbowl_get_update_delay  (GtkFishbowl       *fishbowl);
+void       gtk_fishbowl_set_update_delay  (GtkFishbowl       *fishbowl,
+                                           gint64             update_delay);
+void       gtk_fishbowl_set_creation_func (GtkFishbowl       *fishbowl,
+                                           GtkFishCreationFunc creation_func);

 G_END_DECLS

@@ -0,0 +1,960 @@
+/* The rendering code in here is taken from es2gears, which has the
+ * following copyright notice:
+ *
+ * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Ported to GLES2.
+ * Kristian Høgsberg <krh@bitplanet.net>
+ * May 3, 2010
+ *
+ * Improve GLES2 port:
+ *   * Refactor gear drawing.
+ *   * Use correct normals for surfaces.
+ *   * Improve shader.
+ *   * Use perspective projection transformation.
+ *   * Add FPS count.
+ *   * Add comments.
+ * Alexandros Frantzis <alexandros.frantzis@linaro.org>
+ * Jul 13, 2010
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <epoxy/gl.h>
+
+#include "gtkgears.h"
+
+#define STRIPS_PER_TOOTH 7
+#define VERTICES_PER_TOOTH 34
+#define GEAR_VERTEX_STRIDE 6
+
+#ifndef HAVE_SINCOS
+static void
+sincos (double x, double *_sin, double *_cos)
+{
+  *_sin = sin (x);
+  *_cos = cos (x);
+}
+#endif
+
+/**
+ * Struct describing the vertices in triangle strip
+ */
+struct vertex_strip {
+   /** The first vertex in the strip */
+   GLint first;
+   /** The number of consecutive vertices in the strip after the first */
+   GLint count;
+};
+
+/* Each vertex consist of GEAR_VERTEX_STRIDE GLfloat attributes */
+typedef GLfloat GearVertex[GEAR_VERTEX_STRIDE];
+
+/**
+ * Struct representing a gear.
+ */
+struct gear {
+   /** The array of vertices comprising the gear */
+   GearVertex *vertices;
+   /** The number of vertices comprising the gear */
+   int nvertices;
+   /** The array of triangle strips comprising the gear */
+   struct vertex_strip *strips;
+   /** The number of triangle strips comprising the gear */
+   int nstrips;
+};
+
+typedef struct {
+  /* The view rotation [x, y, z] */
+  GLfloat view_rot[GTK_GEARS_N_AXIS];
+
+  /* The Vertex Array Object */
+  GLuint vao;
+
+  /* The shader program */
+  GLuint program;
+
+  /* The gears */
+  struct gear *gear1;
+  struct gear *gear2;
+  struct gear *gear3;
+
+  /** The Vertex Buffer Object holding the vertices in the graphics card */
+  GLuint gear_vbo[3];
+
+  /** The location of the shader uniforms */
+  GLuint ModelViewProjectionMatrix_location;
+  GLuint NormalMatrix_location;
+  GLuint LightSourcePosition_location;
+  GLuint MaterialColor_location;
+
+  /* The current gear rotation angle */
+  GLfloat angle;
+
+  /* The projection matrix */
+  GLfloat ProjectionMatrix[16];
+
+  /* The direction of the directional light for the scene */
+  GLfloat LightSourcePosition[4];
+
+  gint64 first_frame_time;
+  guint tick;
+  GtkLabel *fps_label;
+} GtkGearsPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkGears, gtk_gears, GTK_TYPE_GL_AREA)
+
+static gboolean gtk_gears_render        (GtkGLArea     *area,
+                                         GdkGLContext  *context);
+static void     gtk_gears_reshape       (GtkGLArea     *area,
+                                         int            width,
+                                         int            height);
+static void     gtk_gears_realize       (GtkWidget     *widget);
+static void     gtk_gears_unrealize     (GtkWidget     *widget);
+static gboolean gtk_gears_tick          (GtkWidget     *widget,
+                                         GdkFrameClock *frame_clock,
+                                         gpointer       user_data);
+
+static void destroy_gear (struct gear *g);
+
+GtkWidget *
+gtk_gears_new (void)
+{
+  return g_object_new (gtk_gears_get_type (),
+                       "has-depth-buffer", TRUE,
+                       NULL);
+}
+
+static void
+gtk_gears_init (GtkGears *gears)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  priv->view_rot[GTK_GEARS_X_AXIS] = 20.0;
+  priv->view_rot[GTK_GEARS_Y_AXIS] = 30.0;
+  priv->view_rot[GTK_GEARS_Z_AXIS] = 20.0;
+
+  priv->LightSourcePosition[0] = 5.0;
+  priv->LightSourcePosition[1] = 5.0;
+  priv->LightSourcePosition[2] = 10.0;
+  priv->LightSourcePosition[3] = 1.0;
+
+  priv->tick = gtk_widget_add_tick_callback (GTK_WIDGET (gears), gtk_gears_tick, gears, NULL);
+}
+
+static void
+gtk_gears_finalize (GObject *obj)
+{
+  GtkGears *gears = GTK_GEARS (obj);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  gtk_widget_remove_tick_callback (GTK_WIDGET (gears), priv->tick);
+
+  g_clear_object (&priv->fps_label);
+
+  g_clear_pointer (&priv->gear1, destroy_gear);
+  g_clear_pointer (&priv->gear2, destroy_gear);
+  g_clear_pointer (&priv->gear3, destroy_gear);
+
+  G_OBJECT_CLASS (gtk_gears_parent_class)->finalize (obj);
+}
+
+static void
+gtk_gears_class_init (GtkGearsClass *klass)
+{
+  GTK_GL_AREA_CLASS (klass)->render = gtk_gears_render;
+  GTK_GL_AREA_CLASS (klass)->resize = gtk_gears_reshape;
+
+  GTK_WIDGET_CLASS (klass)->realize = gtk_gears_realize;
+  GTK_WIDGET_CLASS (klass)->unrealize = gtk_gears_unrealize;
+
+  G_OBJECT_CLASS (klass)->finalize = gtk_gears_finalize;
+}
+
+/*
+ * Fills a gear vertex.
+ *
+ * @param v the vertex to fill
+ * @param x the x coordinate
+ * @param y the y coordinate
+ * @param z the z coortinate
+ * @param n pointer to the normal table
+ *
+ * @return the operation error code
+ */
+static GearVertex *
+vert (GearVertex *v,
+      GLfloat x,
+      GLfloat y,
+      GLfloat z,
+      GLfloat n[3])
+{
+  v[0][0] = x;
+  v[0][1] = y;
+  v[0][2] = z;
+  v[0][3] = n[0];
+  v[0][4] = n[1];
+  v[0][5] = n[2];
+
+  return v + 1;
+}
+
+static void
+destroy_gear (struct gear *g)
+{
+  g_free (g->strips);
+  g_free (g);
+}
+
+/**
+ *  Create a gear wheel.
+ *
+ *  @param inner_radius radius of hole at center
+ *  @param outer_radius radius at center of teeth
+ *  @param width width of gear
+ *  @param teeth number of teeth
+ *  @param tooth_depth depth of tooth
+ *
+ *  @return pointer to the constructed struct gear
+ */
+static struct gear *
+create_gear (GLfloat inner_radius,
+             GLfloat outer_radius,
+             GLfloat width,
+             GLint teeth,
+             GLfloat tooth_depth)
+{
+  GLfloat r0, r1, r2;
+  GLfloat da;
+  GearVertex *v;
+  struct gear *gear;
+  double s[5], c[5];
+  GLfloat normal[3];
+  int cur_strip = 0;
+  int i;
+
+  /* Allocate memory for the gear */
+  gear = g_malloc (sizeof *gear);
+
+  /* Calculate the radii used in the gear */
+  r0 = inner_radius;
+  r1 = outer_radius - tooth_depth / 2.0;
+  r2 = outer_radius + tooth_depth / 2.0;
+
+  da = 2.0 * M_PI / teeth / 4.0;
+
+  /* Allocate memory for the triangle strip information */
+  gear->nstrips = STRIPS_PER_TOOTH * teeth;
+  gear->strips = g_malloc0_n (gear->nstrips, sizeof (*gear->strips));
+
+  /* Allocate memory for the vertices */
+  gear->vertices = g_malloc0_n (VERTICES_PER_TOOTH * teeth, sizeof(*gear->vertices));
+  v = gear->vertices;
+
+  for (i = 0; i < teeth; i++) {
+    /* A set of macros for making the creation of the gears easier */
+#define  GEAR_POINT(p, r, da) do { p.x = (r) * c[(da)]; p.y = (r) * s[(da)]; } while(0)
+#define  SET_NORMAL(x, y, z) do { \
+   normal[0] = (x); normal[1] = (y); normal[2] = (z); \
+} while(0)
+
+#define  GEAR_VERT(v, point, sign) vert((v), p[(point)].x, p[(point)].y, (sign) * width * 0.5, normal)
+
+#define START_STRIP do { \
+   gear->strips[cur_strip].first = v - gear->vertices; \
+} while(0);
+
+#define END_STRIP do { \
+   int _tmp = (v - gear->vertices); \
+   gear->strips[cur_strip].count = _tmp - gear->strips[cur_strip].first; \
+   cur_strip++; \
+} while (0)
+
+#define QUAD_WITH_NORMAL(p1, p2) do { \
+   SET_NORMAL((p[(p1)].y - p[(p2)].y), -(p[(p1)].x - p[(p2)].x), 0); \
+   v = GEAR_VERT(v, (p1), -1); \
+   v = GEAR_VERT(v, (p1), 1); \
+   v = GEAR_VERT(v, (p2), -1); \
+   v = GEAR_VERT(v, (p2), 1); \
+} while(0)
+    struct point {
+      GLfloat x;
+      GLfloat y;
+    };
+
+    /* Create the 7 points (only x,y coords) used to draw a tooth */
+    struct point p[7];
+
+    /* Calculate needed sin/cos for varius angles */
+    sincos(i * 2.0 * G_PI / teeth + da * 0, &s[0], &c[0]);
+    sincos(i * 2.0 * M_PI / teeth + da * 1, &s[1], &c[1]);
+    sincos(i * 2.0 * M_PI / teeth + da * 2, &s[2], &c[2]);
+    sincos(i * 2.0 * M_PI / teeth + da * 3, &s[3], &c[3]);
+    sincos(i * 2.0 * M_PI / teeth + da * 4, &s[4], &c[4]);
+
+    GEAR_POINT(p[0], r2, 1);
+    GEAR_POINT(p[1], r2, 2);
+    GEAR_POINT(p[2], r1, 0);
+    GEAR_POINT(p[3], r1, 3);
+    GEAR_POINT(p[4], r0, 0);
+    GEAR_POINT(p[5], r1, 4);
+    GEAR_POINT(p[6], r0, 4);
+
+    /* Front face */
+    START_STRIP;
+    SET_NORMAL(0, 0, 1.0);
+    v = GEAR_VERT(v, 0, +1);
+    v = GEAR_VERT(v, 1, +1);
+    v = GEAR_VERT(v, 2, +1);
+    v = GEAR_VERT(v, 3, +1);
+    v = GEAR_VERT(v, 4, +1);
+    v = GEAR_VERT(v, 5, +1);
+    v = GEAR_VERT(v, 6, +1);
+    END_STRIP;
+
+    /* Inner face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(4, 6);
+    END_STRIP;
+
+    /* Back face */
+    START_STRIP;
+    SET_NORMAL(0, 0, -1.0);
+    v = GEAR_VERT(v, 6, -1);
+    v = GEAR_VERT(v, 5, -1);
+    v = GEAR_VERT(v, 4, -1);
+    v = GEAR_VERT(v, 3, -1);
+    v = GEAR_VERT(v, 2, -1);
+    v = GEAR_VERT(v, 1, -1);
+    v = GEAR_VERT(v, 0, -1);
+    END_STRIP;
+
+    /* Outer face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(0, 2);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(1, 0);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(3, 1);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(5, 3);
+    END_STRIP;
+  }
+
+  gear->nvertices = (v - gear->vertices);
+
+  return gear;
+}
+
+/** 
+ * Multiplies two 4x4 matrices.
+ *
+ * The result is stored in matrix m.
+ *
+ * @param m the first matrix to multiply
+ * @param n the second matrix to multiply
+ */
+static void
+multiply (GLfloat *m, const GLfloat *n)
+{
+   GLfloat tmp[16];
+   const GLfloat *row, *column;
+   div_t d;
+   int i, j;
+
+   for (i = 0; i < 16; i++) {
+      tmp[i] = 0;
+      d = div(i, 4);
+      row = n + d.quot * 4;
+      column = m + d.rem;
+      for (j = 0; j < 4; j++)
+         tmp[i] += row[j] * column[j * 4];
+   }
+   memcpy(m, &tmp, sizeof tmp);
+}
+
+/** 
+ * Rotates a 4x4 matrix.
+ *
+ * @param[in,out] m the matrix to rotate
+ * @param angle the angle to rotate
+ * @param x the x component of the direction to rotate to
+ * @param y the y component of the direction to rotate to
+ * @param z the z component of the direction to rotate to
+ */
+static void
+rotate(GLfloat *m, GLfloat angle, GLfloat x, GLfloat y, GLfloat z)
+{
+   double s = sin (angle);
+   double c = cos (angle);
+
+   GLfloat r[16] = {
+      x * x * (1 - c) + c,     y * x * (1 - c) + z * s, x * z * (1 - c) - y * s, 0,
+      x * y * (1 - c) - z * s, y * y * (1 - c) + c,     y * z * (1 - c) + x * s, 0,
+      x * z * (1 - c) + y * s, y * z * (1 - c) - x * s, z * z * (1 - c) + c,     0,
+      0, 0, 0, 1
+   };
+
+   multiply(m, r);
+}
+
+/** 
+ * Translates a 4x4 matrix.
+ * 
+ * @param[in,out] m the matrix to translate
+ * @param x the x component of the direction to translate to
+ * @param y the y component of the direction to translate to
+ * @param z the z component of the direction to translate to
+ */
+static void
+translate(GLfloat *m, GLfloat x, GLfloat y, GLfloat z)
+{
+   GLfloat t[16] = { 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  x, y, z, 1 };
+
+   multiply(m, t);
+}
+
+/** 
+ * Creates an identity 4x4 matrix.
+ * 
+ * @param m the matrix make an identity matrix
+ */
+static void
+identity(GLfloat *m)
+{
+   GLfloat t[16] = {
+      1.0, 0.0, 0.0, 0.0,
+      0.0, 1.0, 0.0, 0.0,
+      0.0, 0.0, 1.0, 0.0,
+      0.0, 0.0, 0.0, 1.0,
+   };
+
+   memcpy(m, t, sizeof(t));
+}
+
+/** 
+ * Transposes a 4x4 matrix.
+ *
+ * @param m the matrix to transpose
+ */
+static void
+transpose(GLfloat *m)
+{
+   GLfloat t[16] = {
+      m[0], m[4], m[8],  m[12],
+      m[1], m[5], m[9],  m[13],
+      m[2], m[6], m[10], m[14],
+      m[3], m[7], m[11], m[15]};
+
+   memcpy(m, t, sizeof(t));
+}
+
+/**
+ * Inverts a 4x4 matrix.
+ *
+ * This function can currently handle only pure translation-rotation matrices.
+ * Read http://www.gamedev.net/community/forums/topic.asp?topic_id=425118
+ * for an explanation.
+ */
+static void
+invert(GLfloat *m)
+{
+   GLfloat t[16];
+   identity(t);
+
+   // Extract and invert the translation part 't'. The inverse of a
+   // translation matrix can be calculated by negating the translation
+   // coordinates.
+   t[12] = -m[12]; t[13] = -m[13]; t[14] = -m[14];
+
+   // Invert the rotation part 'r'. The inverse of a rotation matrix is
+   // equal to its transpose.
+   m[12] = m[13] = m[14] = 0;
+   transpose(m);
+
+   // inv(m) = inv(r) * inv(t)
+   multiply(m, t);
+}
+
+/** 
+ * Calculate a perspective projection transformation.
+ * 
+ * @param m the matrix to save the transformation in
+ * @param fovy the field of view in the y direction
+ * @param aspect the view aspect ratio
+ * @param zNear the near clipping plane
+ * @param zFar the far clipping plane
+ */
+void perspective(GLfloat *m, GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar)
+{
+   GLfloat tmp[16];
+   double sine, cosine, cotangent, deltaZ;
+   GLfloat radians = fovy / 2 * M_PI / 180;
+   identity(tmp);
+
+   deltaZ = zFar - zNear;
+   sincos(radians, &sine, &cosine);
+
+   if ((deltaZ == 0) || (sine == 0) || (aspect == 0))
+      return;
+
+   cotangent = cosine / sine;
+
+   tmp[0] = cotangent / aspect;
+   tmp[5] = cotangent;
+   tmp[10] = -(zFar + zNear) / deltaZ;
+   tmp[11] = -1;
+   tmp[14] = -2 * zNear * zFar / deltaZ;
+   tmp[15] = 0;
+
+   memcpy(m, tmp, sizeof(tmp));
+}
+
+/**
+ * Draws a gear.
+ *
+ * @param gear the gear to draw
+ * @param transform the current transformation matrix
+ * @param x the x position to draw the gear at
+ * @param y the y position to draw the gear at
+ * @param angle the rotation angle of the gear
+ * @param color the color of the gear
+ */
+static void
+draw_gear(GtkGears *self,
+          struct gear *gear,
+          GLuint gear_vbo,
+          GLfloat *transform,
+          GLfloat x,
+          GLfloat y,
+          GLfloat angle,
+          const GLfloat color[4])
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat model_view[16];
+  GLfloat normal_matrix[16];
+  GLfloat model_view_projection[16];
+  int n;
+
+  /* Translate and rotate the gear */
+  memcpy(model_view, transform, sizeof (model_view));
+  translate(model_view, x, y, 0);
+  rotate(model_view, 2 * G_PI * angle / 360.0, 0, 0, 1);
+
+  /* Create and set the ModelViewProjectionMatrix */
+  memcpy(model_view_projection, priv->ProjectionMatrix, sizeof(model_view_projection));
+  multiply(model_view_projection, model_view);
+
+  glUniformMatrix4fv(priv->ModelViewProjectionMatrix_location, 1, GL_FALSE,
+                     model_view_projection);
+
+  /* 
+   * Create and set the NormalMatrix. It's the inverse transpose of the
+   * ModelView matrix.
+   */
+  memcpy(normal_matrix, model_view, sizeof (normal_matrix));
+  invert(normal_matrix);
+  transpose(normal_matrix);
+  glUniformMatrix4fv(priv->NormalMatrix_location, 1, GL_FALSE, normal_matrix);
+
+  /* Set the gear color */
+  glUniform4fv(priv->MaterialColor_location, 1, color);
+
+  /* Set the vertex buffer object to use */
+  glBindBuffer(GL_ARRAY_BUFFER, gear_vbo);
+
+  /* Set up the position of the attributes in the vertex buffer object */
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), NULL);
+  glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (GLfloat *) 0 + 3);
+
+  /* Enable the attributes */
+  glEnableVertexAttribArray(0);
+  glEnableVertexAttribArray(1);
+
+  /* Draw the triangle strips that comprise the gear */
+  for (n = 0; n < gear->nstrips; n++) {
+    glDrawArrays(GL_TRIANGLE_STRIP, gear->strips[n].first, gear->strips[n].count);
+  }
+
+  /* Disable the attributes */
+  glDisableVertexAttribArray(1);
+  glDisableVertexAttribArray(0);
+}
+
+/* new window size or exposure */
+static void
+gtk_gears_reshape (GtkGLArea *area, int width, int height)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) area);
+
+  /* Update the projection matrix */
+  perspective (priv->ProjectionMatrix, 60.0, width / (float)height, 1.0, 1024.0);
+
+  /* Set the viewport */
+  glViewport (0, 0, (GLint) width, (GLint) height);
+}
+
+static gboolean
+gtk_gears_render (GtkGLArea    *area,
+                  GdkGLContext *context)
+{
+  static const GLfloat red[4]   = { 0.8, 0.1, 0.0, 1.0 };
+  static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+  static const GLfloat blue[4]  = { 0.2, 0.2, 1.0, 1.0 };
+
+  GtkGears *self = GTK_GEARS (area);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat transform[16];
+
+  identity (transform);
+
+  glClearColor (0.0, 0.0, 0.0, 0.0);
+  glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+  /* Translate and rotate the view */
+  translate (transform, 0, 0, -20);
+  rotate (transform, 2 * G_PI * priv->view_rot[0] / 360.0, 1, 0, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[1] / 360.0, 0, 1, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[2] / 360.0, 0, 0, 1);
+
+  /* Draw the gears */
+  draw_gear (self, priv->gear1, priv->gear_vbo[0], transform, -3.0, -2.0,      priv->angle,        red);
+  draw_gear (self, priv->gear2, priv->gear_vbo[1], transform,  3.1, -2.0, -2 * priv->angle - 9.0,  green);
+  draw_gear (self, priv->gear3, priv->gear_vbo[2], transform, -3.1,  4.2, -2 * priv->angle - 25.0, blue);
+
+  return TRUE;
+}
+
+static const char vertex_shader_gl[] =
+"#version 150\n"
+"\n"
+"in vec3 position;\n"
+"in vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"smooth out vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gl[] =
+"#version 150\n"
+"\n"
+"smooth in vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static const char vertex_shader_gles[] =
+"attribute vec3 position;\n"
+"attribute vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gles[] =
+"precision mediump float;\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static void
+gtk_gears_realize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkGLContext *context;
+  GLuint vao, v, f, program;
+  const char *p;
+  char msg[512];
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->realize (widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  context = gtk_gl_area_get_context (glarea);
+
+  glEnable (GL_CULL_FACE);
+  glEnable (GL_DEPTH_TEST);
+
+  /* Create the VAO */
+  glGenVertexArrays (1, &vao);
+  glBindVertexArray (vao);
+  priv->vao = vao;
+
+  /* Compile the vertex shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = vertex_shader_gles;
+  else
+    p = vertex_shader_gl;
+  v = glCreateShader(GL_VERTEX_SHADER);
+  glShaderSource(v, 1, &p, NULL);
+  glCompileShader(v);
+  glGetShaderInfoLog(v, sizeof msg, NULL, msg);
+  g_print ("vertex shader info: %s\n", msg);
+
+  /* Compile the fragment shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = fragment_shader_gles;
+  else
+    p = fragment_shader_gl;
+  f = glCreateShader(GL_FRAGMENT_SHADER);
+  glShaderSource(f, 1, &p, NULL);
+  glCompileShader(f);
+  glGetShaderInfoLog(f, sizeof msg, NULL, msg);
+  g_print ("fragment shader info: %s\n", msg);
+
+  /* Create and link the shader program */
+  program = glCreateProgram();
+  glAttachShader(program, v);
+  glAttachShader(program, f);
+  glBindAttribLocation(program, 0, "position");
+  glBindAttribLocation(program, 1, "normal");
+
+  glLinkProgram(program);
+  glGetProgramInfoLog(program, sizeof msg, NULL, msg);
+  g_print ("program info: %s\n", msg);
+  glDeleteShader (v);
+  glDeleteShader (f);
+
+  /* Enable the shaders */
+  glUseProgram(program);
+  priv->program = program;
+
+  /* Get the locations of the uniforms so we can access them */
+  priv->ModelViewProjectionMatrix_location = glGetUniformLocation(program, "ModelViewProjectionMatrix");
+  priv->NormalMatrix_location = glGetUniformLocation(program, "NormalMatrix");
+  priv->LightSourcePosition_location = glGetUniformLocation(program, "LightSourcePosition");
+  priv->MaterialColor_location = glGetUniformLocation(program, "MaterialColor");
+
+  /* Set the LightSourcePosition uniform which is constant throught the program */
+  glUniform4fv(priv->LightSourcePosition_location, 1, priv->LightSourcePosition);
+
+  /* make the gears */
+  priv->gear1 = create_gear(1.0, 4.0, 1.0, 20, 0.7);
+
+  /* Store the vertices in a vertex buffer object (VBO) */
+  glGenBuffers (1, &(priv->gear_vbo[0]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[0]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear1->nvertices * sizeof(GearVertex),
+                priv->gear1->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear2 = create_gear(0.5, 2.0, 2.0, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[1]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[1]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear2->nvertices * sizeof(GearVertex),
+                priv->gear2->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear3 = create_gear(1.3, 2.0, 0.5, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[2]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[2]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear3->nvertices * sizeof(GearVertex),
+                priv->gear3->vertices,
+                GL_STATIC_DRAW);
+}
+
+static void
+gtk_gears_unrealize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  /* Release the resources associated with OpenGL */
+  if (priv->gear_vbo[0] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[0]));
+
+  if (priv->gear_vbo[1] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[1]));
+
+  if (priv->gear_vbo[2] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[2]));
+
+  if (priv->vao != 0)
+    glDeleteVertexArrays (1, &priv->vao);
+
+  if (priv->program != 0)
+    glDeleteProgram (priv->program);
+
+  priv->ModelViewProjectionMatrix_location = 0;
+  priv->NormalMatrix_location = 0;
+  priv->LightSourcePosition_location = 0;
+  priv->MaterialColor_location = 0;
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->unrealize (widget);
+}
+
+static gboolean
+gtk_gears_tick (GtkWidget     *widget,
+                GdkFrameClock *frame_clock,
+                gpointer       user_data)
+{
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkFrameTimings *timings, *previous_timings;
+  gint64 previous_frame_time = 0;
+  gint64 frame_time;
+  gint64 history_start, history_len;
+  gint64 frame;
+  char *s;
+
+  frame = gdk_frame_clock_get_frame_counter (frame_clock);
+  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
+
+  if (priv->first_frame_time == 0)
+    {
+      /* No need for changes on first frame */
+      priv->first_frame_time = frame_time;
+      if (priv->fps_label)
+        gtk_label_set_label (priv->fps_label, "FPS: ---");
+      return G_SOURCE_CONTINUE;
+    }
+
+  /* glxgears advances 70 degrees per second, so do the same */
+
+  priv->angle = fmod ((frame_time - priv->first_frame_time) / (double)G_USEC_PER_SEC * 70.0, 360.0);
+
+  gtk_widget_queue_draw (widget);
+
+  history_start = gdk_frame_clock_get_history_start (frame_clock);
+
+  if (priv->fps_label && frame % 60 == 0)
+    {
+      history_len = frame - history_start;
+      if (history_len > 0)
+        {
+          previous_timings = gdk_frame_clock_get_timings (frame_clock, frame - history_len);
+          previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+          s = g_strdup_printf ("FPS: %-4.1f", (G_USEC_PER_SEC * history_len) / (double)(frame_time - previous_frame_time));
+          gtk_label_set_label (priv->fps_label, s);
+          g_free (s);
+        }
+    }
+
+  timings = gdk_frame_clock_get_current_timings (frame_clock);
+  previous_timings = gdk_frame_clock_get_timings (frame_clock,
+                                                  gdk_frame_timings_get_frame_counter (timings) - 1);
+  if (previous_timings != NULL)
+    previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+  return G_SOURCE_CONTINUE;
+}
+
+void
+gtk_gears_set_axis (GtkGears *gears, int axis, double value)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return;
+
+  priv->view_rot[axis] = value;
+
+  gtk_widget_queue_draw (GTK_WIDGET (gears));
+}
+
+double
+gtk_gears_get_axis (GtkGears *gears, int axis)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return 0.0;
+
+  return priv->view_rot[axis];
+}
+
+void
+gtk_gears_set_fps_label (GtkGears *gears, GtkLabel *label)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (label)
+    g_object_ref (label);
+
+  g_clear_object (&priv->fps_label);
+
+  priv->fps_label = label;
+}
@@ -0,0 +1,48 @@
+#ifndef __GTK_GEARS_H__
+#define __GTK_GEARS_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+enum {
+  GTK_GEARS_X_AXIS,
+  GTK_GEARS_Y_AXIS,
+  GTK_GEARS_Z_AXIS,
+
+  GTK_GEARS_N_AXIS
+};
+
+#define GTK_TYPE_GEARS      (gtk_gears_get_type ())
+#define GTK_GEARS(inst)     (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+                             GTK_TYPE_GEARS,             \
+                             GtkGears))
+#define GTK_IS_GEARS(inst)  (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+                             GTK_TYPE_GEARS))
+
+typedef struct _GtkGears GtkGears;
+typedef struct _GtkGearsClass GtkGearsClass;
+
+struct _GtkGears {
+  GtkGLArea parent;
+};
+
+struct _GtkGearsClass {
+  GtkGLAreaClass parent_class;
+};
+
+GType      gtk_gears_get_type      (void) G_GNUC_CONST;
+
+GtkWidget *gtk_gears_new           (void);
+void       gtk_gears_set_axis      (GtkGears *gears,
+                                    int       axis,
+                                    double    value);
+double     gtk_gears_get_axis      (GtkGears *gears,
+                                    int       axis);
+void       gtk_gears_set_fps_label (GtkGears *gears,
+                                    GtkLabel *label);
+
+
+G_END_DECLS
+
+#endif /* __GTK_GEARS_H__ */
@@ -105,14 +105,14 @@ follow_if_link (GtkWidget   *text_view,
 /* Links can be activated by pressing Enter.
 */
 static gboolean
-key_press_event (GtkWidget *text_view,
-                 GdkEventKey *event)
+key_pressed (GtkEventController *controller,
+             guint               keyval,
+             guint               keycode,
+             GdkModifierType     modifiers,
+             GtkWidget          *text_view)
 {
  GtkTextIter iter;
  GtkTextBuffer *buffer;
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);

  switch (keyval)
    {
@@ -128,14 +128,18 @@ key_press_event (GtkWidget *text_view,
        break;
    }

-  return FALSE;
+  return GDK_EVENT_PROPAGATE;
 }

+static void set_cursor_if_appropriate (GtkTextView *text_view,
+                                       gint         x,
+                                       gint         y);
+
 /* Links can also be activated by clicking or tapping.
 */
 static gboolean
-event_after (GtkWidget *text_view,
-             GdkEvent  *ev)
+event_cb (GtkWidget *text_view,
+          GdkEvent  *ev)
 {
  GtkTextIter start, end, iter;
  GtkTextBuffer *buffer;
@@ -145,6 +149,11 @@ event_after (GtkWidget *text_view,

  type = gdk_event_get_event_type (ev);

+  gdk_event_get_coords (ev, &ex, &ey);
+  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
+                                         GTK_TEXT_WINDOW_WIDGET,
+                                         ex, ey, &x, &y);
+
  if (type == GDK_BUTTON_RELEASE)
    {
      guint button;
@@ -153,14 +162,17 @@ event_after (GtkWidget *text_view,
      if (button != GDK_BUTTON_PRIMARY)
        return FALSE;
    }
+  else if (type == GDK_MOTION_NOTIFY)
+    {
+      set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
+      return FALSE;
+    }
  else if (type == GDK_TOUCH_END)
    {
    }
  else
    return FALSE;

-  gdk_event_get_coords (ev, &ex, &ey);
-
  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));

  /* we shouldn't follow a link if the user has selected something */
@@ -168,10 +180,6 @@ event_after (GtkWidget *text_view,
  if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
    return FALSE;

-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
  if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
    follow_if_link (text_view, &iter);

@@ -223,25 +231,6 @@ set_cursor_if_appropriate (GtkTextView    *text_view,
    g_slist_free (tags);
 }

-/* Update the cursor image if the pointer moved.
- */
-static gboolean
-motion_notify_event (GtkWidget      *text_view,
-                     GdkEventMotion *event)
-{
-  gdouble ex, ey;
-  gint x, y;
-
-  gdk_event_get_coords ((GdkEvent *)event, &ex, &ey);
-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
-  set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
-
-  return FALSE;
-}
-
 GtkWidget *
 do_hypertext (GtkWidget *do_widget)
 {
@@ -252,6 +241,7 @@ do_hypertext (GtkWidget *do_widget)
      GtkWidget *view;
      GtkWidget *sw;
      GtkTextBuffer *buffer;
+      GtkEventController *controller;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      gtk_window_set_title (GTK_WINDOW (window), "Hypertext");
@@ -266,12 +256,11 @@ do_hypertext (GtkWidget *do_widget)
      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
      gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 20);
      gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 20);
-      g_signal_connect (view, "key-press-event",
-                        G_CALLBACK (key_press_event), NULL);
-      g_signal_connect (view, "event-after",
-                        G_CALLBACK (event_after), NULL);
-      g_signal_connect (view, "motion-notify-event",
-                        G_CALLBACK (motion_notify_event), NULL);
+      controller = gtk_event_controller_key_new ();
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
+      gtk_widget_add_controller (view, controller);
+      g_signal_connect (view, "event",
+                        G_CALLBACK (event_cb), NULL);

      buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

@@ -1,15 +1,15 @@
 /* Images
 *
- * GtkImage is used to display an image; the image can be in a number of formats.
- * Typically, you load an image into a GdkPixbuf, then display the pixbuf.
+ * GtkImage and GtkPicture are used to display an image; the image can be
+ * in a number of formats.
+ *
+ * GtkImage is the widget used to display icons or images that should be
+ * sized and styled like an icon, while GtkPicture is used for images
+ * that should be displayed as-is.
 *
 * This demo code shows some of the more obscure cases, in the simple
- * case a call to gtk_image_new_from_file() is all you need.
- *
- * If you want to put image data in your program as a C variable,
- * use the make-inline-pixbuf program that comes with GTK+.
- * This way you won't need to depend on loading external files, your
- * application binary can be self-contained.
+ * case a call to gtk_picture_new_for_file() or
+ * gtk_image_new_from_icon_name() is all you need.
 */

 #include <gtk/gtk.h>
@@ -27,9 +27,9 @@ progressive_prepared_callback (GdkPixbufLoader *loader,
                               gpointer         data)
 {
  GdkPixbuf *pixbuf;
-  GtkWidget *image;
+  GtkWidget *picture;

-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);

  pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);

@@ -38,7 +38,7 @@ progressive_prepared_callback (GdkPixbufLoader *loader,
   */
  gdk_pixbuf_fill (pixbuf, 0xaaaaaaff);

-  gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
+  gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }

 static void
@@ -49,21 +49,21 @@ progressive_updated_callback (GdkPixbufLoader *loader,
                              gint                 height,
                              gpointer     data)
 {
-  GtkWidget *image;
+  GtkWidget *picture;
  GdkPixbuf *pixbuf;

-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);

  pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
-  gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
+  gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }

 static gint
 progressive_timeout (gpointer data)
 {
-  GtkWidget *image;
+  GtkWidget *picture;

-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);

  /* This shows off fully-paranoid error handling, so looks scary.
   * You could factor out the error handling code into a nice separate
@@ -241,10 +241,10 @@ progressive_timeout (gpointer data)
      pixbuf_loader = gdk_pixbuf_loader_new ();

      g_signal_connect (pixbuf_loader, "area-prepared",
-                        G_CALLBACK (progressive_prepared_callback), image);
+                        G_CALLBACK (progressive_prepared_callback), picture);

      g_signal_connect (pixbuf_loader, "area-updated",
-                        G_CALLBACK (progressive_updated_callback), image);
+                        G_CALLBACK (progressive_updated_callback), picture);
    }

  /* leave timeout installed */
@@ -252,7 +252,7 @@ progressive_timeout (gpointer data)
 }

 static void
-start_progressive_loading (GtkWidget *image)
+start_progressive_loading (GtkWidget *picture)
 {
  /* This is obviously totally contrived (we slow down loading
   * on purpose to show how incremental loading works).
@@ -261,9 +261,7 @@ start_progressive_loading (GtkWidget *image)
   * The timeout simply simulates a slow data source by inserting
   * pauses in the reading process.
   */
-  load_timeout = gdk_threads_add_timeout (150,
-                                progressive_timeout,
-                                image);
+  load_timeout = g_timeout_add (150, progressive_timeout, picture);
  g_source_set_name_by_id (load_timeout, "[gtk+] progressive_timeout");
 }

@@ -319,12 +317,17 @@ toggle_sensitivity_callback (GtkWidget *togglebutton,
 GtkWidget *
 do_images (GtkWidget *do_widget)
 {
+  GtkWidget *video;
  GtkWidget *frame;
  GtkWidget *vbox;
+  GtkWidget *hbox;
+  GtkWidget *base_vbox;
  GtkWidget *image;
+  GtkWidget *picture;
  GtkWidget *label;
  GtkWidget *button;
-  GIcon     *gicon;
+  GdkPaintable *paintable;
+  GIcon *gicon;

  if (!window)
    {
@@ -338,9 +341,15 @@ do_images (GtkWidget *do_widget)
      g_signal_connect (window, "destroy",
                        G_CALLBACK (cleanup_callback), NULL);

+      base_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      g_object_set (base_vbox, "margin", 16, NULL);
+      gtk_container_add (GTK_CONTAINER (window), base_vbox);
+
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 16);
+      gtk_container_add (GTK_CONTAINER (base_vbox), hbox);
+
      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
-      g_object_set (vbox, "margin", 16, NULL);
-      gtk_container_add (GTK_CONTAINER (window), vbox);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);

      label = gtk_label_new (NULL);
      gtk_label_set_markup (GTK_LABEL (label),
@@ -372,9 +381,9 @@ do_images (GtkWidget *do_widget)
      gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
      gtk_box_pack_start (GTK_BOX (vbox), frame);

-      image = gtk_image_new_from_resource ("/images/floppybuddy.gif");
+      picture = gtk_picture_new_for_resource ("/images/floppybuddy.gif");

-      gtk_container_add (GTK_CONTAINER (frame), image);
+      gtk_container_add (GTK_CONTAINER (frame), picture);

      /* Symbolic icon */

@@ -397,6 +406,8 @@ do_images (GtkWidget *do_widget)


      /* Progressive */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);

      label = gtk_label_new (NULL);
      gtk_label_set_markup (GTK_LABEL (label),
@@ -412,18 +423,52 @@ do_images (GtkWidget *do_widget)
      /* Create an empty image for now; the progressive loader
       * will create the pixbuf and fill it in.
       */
-      image = gtk_image_new_from_pixbuf (NULL);
-      gtk_container_add (GTK_CONTAINER (frame), image);
+      picture = gtk_picture_new ();
+      gtk_container_add (GTK_CONTAINER (frame), picture);

-      start_progressive_loading (image);
+      start_progressive_loading (picture);
+
+      /* Video */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Displaying video</u>");
+      gtk_box_pack_start (GTK_BOX (vbox), label);
+
+      frame = gtk_frame_new (NULL);
+      gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+      gtk_widget_set_halign (frame, GTK_ALIGN_CENTER);
+      gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
+      gtk_box_pack_start (GTK_BOX (vbox), frame);
+
+      video = gtk_video_new_for_resource ("/images/gtk-logo.webm");
+      gtk_media_stream_set_loop (gtk_video_get_media_stream (GTK_VIDEO (video)), TRUE);
+      gtk_container_add (GTK_CONTAINER (frame), video);
+
+      /* Widget paintables */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>GtkWidgetPaintable</u>");
+      gtk_box_pack_start (GTK_BOX (vbox), label);
+
+      paintable = gtk_widget_paintable_new (do_widget);
+      picture = gtk_picture_new_for_paintable (paintable);
+      gtk_widget_set_size_request (picture, 100, 100);
+      gtk_widget_set_valign (picture, GTK_ALIGN_START);
+      gtk_container_add (GTK_CONTAINER (vbox), picture);

      /* Sensitivity control */
      button = gtk_toggle_button_new_with_mnemonic ("_Insensitive");
-      gtk_box_pack_start (GTK_BOX (vbox), button);
+      gtk_box_pack_start (GTK_BOX (base_vbox), button);

      g_signal_connect (button, "toggled",
                        G_CALLBACK (toggle_sensitivity_callback),
-                        vbox);
+                        base_vbox);
    }

  if (!gtk_widget_get_visible (window))
@@ -0,0 +1,239 @@
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <errno.h>
+#include <locale.h>
+#include <sys/stat.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+#include <hb-ot.h>
+
+#include "language-names.h"
+
+#define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
+#define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
+
+static GHashTable *language_map;
+
+static char *
+get_first_item_in_semicolon_list (const char *list)
+{
+  char **items;
+  char  *item;
+
+  items = g_strsplit (list, "; ", 2);
+
+  item = g_strdup (items[0]);
+  g_strfreev (items);
+
+  return item;
+}
+
+static char *
+capitalize_utf8_string (const char *str)
+{
+  char first[8] = { 0 };
+
+  if (!str)
+    return NULL;
+
+  g_unichar_to_utf8 (g_unichar_totitle (g_utf8_get_char (str)), first);
+
+  return g_strconcat (first, g_utf8_offset_to_pointer (str, 1), NULL);
+}
+
+static char *
+get_display_name (const char *language)
+{
+  const char  *translated;
+  char *tmp;
+  char *name;
+
+  translated = dgettext ("iso_639", language);
+
+  tmp = get_first_item_in_semicolon_list (translated);
+  name = capitalize_utf8_string (tmp);
+  g_free (tmp);
+
+  return name;
+}
+
+static void
+languages_parse_start_tag (GMarkupParseContext  *ctx,
+                           const char           *element_name,
+                           const char          **attr_names,
+                           const char          **attr_values,
+                           gpointer              user_data,
+                           GError              **error)
+{
+  const char *ccode_longB;
+  const char *ccode_longT;
+  const char *ccode;
+  const char *ccode_id;
+  const char *lang_name;
+  char *display_name;
+
+  if (!(g_str_equal (element_name, "iso_639_entry") ||
+        g_str_equal (element_name, "iso_639_3_entry")) ||
+        attr_names == NULL ||
+        attr_values == NULL)
+    return;
+
+  ccode = NULL;
+  ccode_longB = NULL;
+  ccode_longT = NULL;
+  ccode_id = NULL;
+  lang_name = NULL;
+
+  while (*attr_names && *attr_values)
+    {
+      if (g_str_equal (*attr_names, "iso_639_1_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 2)
+                return;
+              ccode = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "iso_639_2B_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 3)
+                return;
+              ccode_longB = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "iso_639_2T_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 3)
+                return;
+              ccode_longT = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "id"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 2 &&
+                  strlen (*attr_values) != 3)
+                return;
+              ccode_id = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "name"))
+        {
+          lang_name = *attr_values;
+        }
+
+      ++attr_names;
+      ++attr_values;
+    }
+
+  if (lang_name == NULL)
+    return;
+
+  display_name = get_display_name (lang_name);
+
+  if (ccode != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode),
+                         g_strdup (display_name));
+
+  if (ccode_longB != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_longB),
+                         g_strdup (display_name));
+
+  if (ccode_longT != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_longT),
+                         g_strdup (display_name));
+
+  if (ccode_id != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_id),
+                         g_strdup (display_name));
+
+  g_free (display_name);
+}
+
+static void
+languages_variant_init (const char *variant)
+{
+  gboolean res;
+  gsize    buf_len;
+  char *buf = NULL;
+  char *filename = NULL;
+  GError *error = NULL;
+
+  bindtextdomain (variant, ISO_CODES_LOCALESDIR);
+  bind_textdomain_codeset (variant, "UTF-8");
+
+  error = NULL;
+  filename = g_strconcat (ISO_CODES_DATADIR, "/", variant, ".xml", NULL);
+  res = g_file_get_contents (filename, &buf, &buf_len, &error);
+  if (res)
+    {
+      GMarkupParseContext *ctx = NULL;
+      GMarkupParser parser = { languages_parse_start_tag, NULL, NULL, NULL, NULL };
+
+      ctx = g_markup_parse_context_new (&parser, 0, NULL, NULL);
+
+      g_free (error);
+      error = NULL;
+      res = g_markup_parse_context_parse (ctx, buf, buf_len, &error);
+      g_free (ctx);
+
+      if (!res)
+        g_warning ("Failed to parse '%s': %s\n", filename, error->message);
+    }
+  else
+    g_warning ("Failed to load '%s': %s\n", filename, error->message);
+
+  g_free (error);
+  g_free (filename);
+  g_free (buf);
+}
+
+static void
+languages_init (void)
+{
+  if (language_map)
+    return;
+
+  language_map = g_hash_table_new_full (NULL, NULL, NULL, g_free);
+  languages_variant_init ("iso_639");
+  languages_variant_init ("iso_639_3");
+}
+
+const char *
+get_language_name (PangoLanguage *language)
+{
+  languages_init ();
+
+  return (const char *) g_hash_table_lookup (language_map, language);
+}
+
+const char *
+get_language_name_for_tag (guint32 tag)
+{
+  hb_language_t lang;
+  const char *s;
+
+  lang = hb_ot_tag_to_language (tag);
+  s = hb_language_to_string (lang);
+
+  return get_language_name (pango_language_from_string (s));
+}
@@ -0,0 +1,13 @@
+#ifndef LANGUAGE_NAMES_H
+#define LANGUAGE_NAMES_H
+
+#include <pango/pango.h>
+
+G_BEGIN_DECLS
+
+const char * get_language_name (PangoLanguage *language);
+const char * get_language_name_for_tag (guint32 tag);
+
+G_END_DECLS
+
+#endif
@@ -37,7 +37,7 @@ enum
 static Bug data[] =
 {
  { FALSE, 60482, "Normal",     "scrollable notebooks and hidden tabs" },
-  { FALSE, 60620, "Critical",   "gdk_window_clear_area (gdkwindow-win32.c) is not thread-safe" },
+  { FALSE, 60620, "Critical",   "gdk_surface_clear_area (gdksurface-win32.c) is not thread-safe" },
  { FALSE, 50214, "Major",      "Xft support does not clean up correctly" },
  { TRUE,  52877, "Major",      "GtkFileSelection needs a refresh method. " },
  { FALSE, 56070, "Normal",     "Can't click button after setting in sensitive" },
@@ -296,8 +296,7 @@ do_list_store (GtkWidget *do_widget)

      /* finish & show */
      gtk_window_set_default_size (GTK_WINDOW (window), 280, 250);
-      g_signal_connect (window, "delete-event",
-                        G_CALLBACK (window_closed), NULL);
+      g_signal_connect (window, "destroy", G_CALLBACK (window_closed), NULL);
    }

  if (!gtk_widget_get_visible (window))
@@ -3,61 +3,53 @@
  <!-- interface-requires gtk+ 3.10 -->
  <!-- interface-requires gtkdemo 3.10 -->
  <object class="GtkMenu" id="menu1">
-    <property name="visible">1</property>
    <child>
      <object class="GtkMenuItem" id="menuitem1">
-        <property name="visible">1</property>
        <property name="label" translatable="yes">Email message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
      </object>
    </child>
    <child>
      <object class="GtkMenuItem" id="menuitem2">
-        <property name="visible">1</property>
        <property name="label" translatable="yes">Embed message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
      </object>
    </child>
  </object>
  <template class="GtkMessageRow" parent="GtkListBoxRow">
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
        <child>
          <object class="GtkImage" id="avatar_image">
-            <property name="width_request">32</property>
-            <property name="height_request">32</property>
-            <property name="visible">1</property>
+            <property name="width-request">32</property>
+            <property name="height-request">32</property>
            <property name="halign">center</property>
            <property name="valign">start</property>
-            <property name="margin_top">8</property>
-            <property name="margin_bottom">8</property>
-            <property name="margin_start">8</property>
-            <property name="margin_end">8</property>
+            <property name="margin-top">8</property>
+            <property name="margin-bottom">8</property>
+            <property name="margin-start">8</property>
+            <property name="margin-end">8</property>
            <property name="icon-name">image-missing</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
            <property name="height">5</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box1">
-            <property name="visible">1</property>
            <property name="hexpand">1</property>
-            <property name="baseline_position">top</property>
+            <property name="baseline-position">top</property>
            <child>
              <object class="GtkButton" id="button2">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="valign">baseline</property>
                <property name="relief">none</property>
                <child>
                  <object class="GtkLabel" id="source_name">
-                    <property name="visible">1</property>
                    <property name="valign">baseline</property>
                    <property name="label" translatable="0">Username</property>
                    <attributes>
@@ -69,7 +61,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="source_nick">
-                <property name="visible">1</property>
                <property name="valign">baseline</property>
                <property name="label" translatable="0">@nick</property>
                <style>
@@ -82,7 +73,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="short_time_label">
-                <property name="visible">1</property>
                <property name="valign">baseline</property>
                <property name="label" translatable="yes">38m</property>
                <style>
@@ -90,42 +80,42 @@
                </style>
              </object>
              <packing>
-                <property name="pack_type">end</property>
+                <property name="pack-type">end</property>
                <property name="position">2</property>
              </packing>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="content_label">
-            <property name="visible">1</property>
            <property name="halign">start</property>
            <property name="valign">start</property>
            <property name="xalign">0</property>
            <property name="yalign">0</property>
            <property name="label" translatable="0">Message</property>
            <property name="wrap">1</property>
+            <accessibility>
+              <role type="static"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="resent_box">
            <child>
              <object class="GtkImage" id="image2">
-                <property name="visible">1</property>
-                <property name="icon_name">media-playlist-repeat</property>
+                <property name="icon-name">media-playlist-repeat</property>
              </object>
            </child>
            <child>
              <object class="GtkLabel" id="label4">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Resent by</property>
              </object>
              <packing>
@@ -135,9 +125,8 @@
            <child>
              <object class="GtkLinkButton" id="resent_by_button">
                <property name="label" translatable="0">reshareer</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="relief">none</property>
                <property name="uri">http://www.gtk.org</property>
              </object>
@@ -147,20 +136,18 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box3">
-            <property name="visible">1</property>
            <property name="spacing">6</property>
            <child>
              <object class="GtkButton" id="expand_button">
                <property name="label" translatable="yes">Expand</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="relief">none</property>
                <signal name="clicked" handler="expand_clicked" swapped="yes"/>
              </object>
@@ -171,18 +158,16 @@
                <child>
                  <object class="GtkButton" id="reply-button">
                    <property name="label" translatable="yes">Reply</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                  </object>
                </child>
                <child>
                  <object class="GtkButton" id="reshare-button">
                    <property name="label" translatable="yes">Reshare</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <signal name="clicked" handler="reshare_clicked" swapped="yes"/>
                  </object>
@@ -193,9 +178,8 @@
                <child>
                  <object class="GtkButton" id="favorite-buttton">
                    <property name="label" translatable="yes">Favorite</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <signal name="clicked" handler="favorite_clicked" swapped="yes"/>
                  </object>
@@ -205,14 +189,12 @@
                </child>
                <child>
                  <object class="GtkMenuButton" id="more-button">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <property name="popup">menu1</property>
                    <child>
                      <object class="GtkLabel" id="label7">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">More...</property>
                      </object>
                    </child>
@@ -228,53 +210,44 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="details_revealer">
-            <property name="visible">1</property>
            <child>
              <object class="GtkBox" id="box5">
-                <property name="visible">1</property>
                <property name="orientation">vertical</property>
                <child>
                  <object class="GtkBox" id="box7">
-                    <property name="visible">1</property>
-                    <property name="margin_top">2</property>
-                    <property name="margin_bottom">2</property>
+                    <property name="margin-top">2</property>
+                    <property name="margin-bottom">2</property>
                    <property name="spacing">8</property>
                    <child>
                      <object class="GtkFrame" id="frame1">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                        <child>
                          <object class="GtkLabel" id="n_reshares_label">
-                            <property name="visible">1</property>
                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 Reshares</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                          </object>
                        </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkFrame" id="frame2">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                        <child>
                          <object class="GtkLabel" id="n_favorites_label">
-                            <property name="visible">1</property>
                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 FAVORITES</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                          </object>
                        </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                      </object>
                      <packing>
                        <property name="position">1</property>
@@ -287,10 +260,8 @@ FAVORITES</property>
                </child>
                <child>
                  <object class="GtkBox" id="box6">
-                    <property name="visible">1</property>
                    <child>
                      <object class="GtkLabel" id="detailed_time_label">
-                        <property name="visible">1</property>
                        <property name="label" translatable="0">4:25 AM - 14 Jun 13 </property>
                        <style>
                          <class name="dim-label"/>
@@ -300,9 +271,8 @@ FAVORITES</property>
                    <child>
                      <object class="GtkButton" id="button5">
                        <property name="label" translatable="yes">Details</property>
-                        <property name="visible">1</property>
-                        <property name="can_focus">1</property>
-                        <property name="receives_default">1</property>
+                        <property name="can-focus">1</property>
+                        <property name="receives-default">1</property>
                        <property name="relief">none</property>
                        <style>
                          <class name="dim-label"/>
@@ -321,8 +291,8 @@ FAVORITES</property>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">4</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">4</property>
          </packing>
        </child>
      </object>
@@ -250,7 +250,7 @@ static gchar *types[] =
  "GtkTreeSelection ",
  "GdkDisplay ",
  "GdkScreen ",
-  "GdkWindow ",
+  "GdkSurface ",
  "GdkEventButton ",
  "GdkCursor ",
  "GtkTreeIter ",
@@ -532,7 +532,106 @@ fontify (GtkTextBuffer *source_buffer)
    }
 }

-static GtkWidget *create_text (GtkWidget **text_view, gboolean is_source);
+static GtkWidget *
+display_image (const char *resource)
+{
+  GtkWidget *sw, *image;
+
+  image = gtk_image_new_from_resource (resource);
+  gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (sw), image);
+
+  return sw;
+}
+
+static GtkWidget *
+display_text (const char *resource)
+{
+  GtkTextBuffer *buffer;
+  GtkWidget *textview, *sw;
+  GBytes *bytes;
+
+  bytes = g_resources_lookup_data (resource, 0, NULL);
+  g_assert (bytes);
+
+  g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
+
+  textview = gtk_text_view_new ();
+  g_object_set (textview,
+                "left-margin", 20,
+                "right-margin", 20,
+                "top-margin", 20,
+                "bottom-margin", 20,
+                NULL);
+  gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
+  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
+  /* Make it a bit nicer for text. */
+  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
+  gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
+  gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
+
+  buffer = gtk_text_buffer_new (NULL);
+  gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
+  if (g_str_has_suffix (resource, ".c"))
+    fontify (buffer);
+  gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
+
+  g_bytes_unref (bytes);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                  GTK_POLICY_AUTOMATIC,
+                                  GTK_POLICY_AUTOMATIC);
+  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
+                                       GTK_SHADOW_NONE);
+  gtk_container_add (GTK_CONTAINER (sw), textview);
+
+  return sw;
+}
+
+static GtkWidget *
+display_video (const char *resource)
+{
+  GtkWidget *video;
+
+  video = gtk_video_new_for_resource (resource);
+  gtk_video_set_loop (GTK_VIDEO (video), TRUE);
+
+  return video;
+}
+
+static GtkWidget *
+display_nothing (const char *resource)
+{
+  GtkWidget *widget;
+  char *str;
+
+  str = g_strdup_printf ("The lazy GTK developers forgot to add a way to display the resource '%s'", resource);
+  widget = gtk_label_new (str);
+  gtk_label_set_line_wrap (GTK_LABEL (widget), TRUE);
+
+  g_free (str);
+
+  return widget;
+}
+
+static struct {
+  const char *extension;
+  GtkWidget * (* display_func) (const char *resource);
+} display_funcs[] = {
+  { ".gif", display_image },
+  { ".jpg", display_image },
+  { ".png", display_image },
+  { ".c", display_text },
+  { ".css", display_text },
+  { ".glsl", display_text },
+  { ".h", display_text },
+  { ".txt", display_text },
+  { ".ui", display_text },
+  { ".webm", display_video }
+};

 static void
 add_data_tab (const gchar *demoname)
@@ -540,7 +639,7 @@ add_data_tab (const gchar *demoname)
  gchar *resource_dir, *resource_name;
  gchar **resources;
  GtkWidget *widget, *label;
-  guint i;
+  guint i, j;

  resource_dir = g_strconcat ("/", demoname, NULL);
  resources = g_resources_enumerate_children (resource_dir, 0, NULL);
@@ -554,58 +653,22 @@ add_data_tab (const gchar *demoname)
    {
      resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);

-      widget = gtk_image_new_from_resource (resource_name);
-      if (gtk_image_get_surface (GTK_IMAGE (widget)) == NULL)
+      for (j = 0; j < G_N_ELEMENTS(display_funcs); j++)
        {
-          GBytes *bytes;
-
-          /* So we've used the best API available to figure out it's
-           * not an image. Let's try something else then.
-           */
-          g_object_ref_sink (widget);
-          g_object_unref (widget);
-
-          bytes = g_resources_lookup_data (resource_name, 0, NULL);
-          g_assert (bytes);
-
-          if (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
-            {
-              /* Looks like it parses as text. Dump it into a textview then! */
-              GtkTextBuffer *buffer;
-              GtkWidget *textview;
-
-              widget = create_text (&textview, FALSE);
-              buffer = gtk_text_buffer_new (NULL);
-              gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
-              if (g_str_has_suffix (resource_name, ".c"))
-                fontify (buffer);
-              gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
-            }
-          else
-            {
-              g_warning ("Don't know how to display resource '%s'", resource_name);
-              widget = NULL;
-            }
-
-          g_bytes_unref (bytes);
+          if (g_str_has_suffix (resource_name, display_funcs[j].extension))
+            break;
        }

-      if (GTK_IS_IMAGE (widget))
-        {
-          GtkWidget *sw;
-
-          gtk_widget_set_halign (widget, GTK_ALIGN_CENTER);
-          gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
-          sw = gtk_scrolled_window_new (NULL, NULL);
-          gtk_container_add (GTK_CONTAINER (sw), widget);
-          widget = sw;
-        }
+      if (j < G_N_ELEMENTS(display_funcs))
+        widget = display_funcs[j].display_func (resource_name);
+      else
+        widget = display_nothing (resource_name);

      label = gtk_label_new (resources[i]);
      gtk_widget_show (label);
      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
      gtk_container_child_set (GTK_CONTAINER (notebook),
-                               GTK_WIDGET (widget),
+                               widget,
                               "tab-expand", TRUE,
                               NULL);

@@ -825,49 +888,6 @@ selection_cb (GtkTreeSelection *selection,
  g_free (filename);
 }

-static GtkWidget *
-create_text (GtkWidget **view,
-             gboolean    is_source)
-{
-  GtkWidget *scrolled_window;
-  GtkWidget *text_view;
-
-  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
-                                  GTK_POLICY_AUTOMATIC,
-                                  GTK_POLICY_AUTOMATIC);
-  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
-                                       GTK_SHADOW_NONE);
-
-  *view = text_view = gtk_text_view_new ();
-  g_object_set (text_view,
-                "left-margin", 20,
-                "right-margin", 20,
-                "top-margin", 20,
-                "bottom-margin", 20,
-                NULL);
-
-  gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
-  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
-
-  gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
-
-  if (is_source)
-    {
-      gtk_text_view_set_monospace (GTK_TEXT_VIEW (text_view), TRUE);
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_NONE);
-    }
-  else
-    {
-      /* Make it a bit nicer for text. */
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
-      gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 2);
-      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (text_view), 2);
-    }
-
-  return scrolled_window;
-}
-
 static void
 populate_model (GtkTreeModel *model)
 {
@@ -19,24 +19,20 @@
    <property name="default-width">800</property>
    <property name="default-height">600</property>
    <property name="title">GTK+ Demo</property>
-    <signal name="delete-event" handler="gtk_false" swapped="no"/>
    <signal name="destroy" handler="gtk_main_quit" swapped="no"/>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="headerbar">
-        <property name="visible">1</property>
        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="valign">center</property>
-            <property name="can_focus">1</property>
-            <property name="action_name">win.run</property>
+            <property name="can-focus">1</property>
+            <property name="action-name">win.run</property>
            <style>
              <class name="text-button"/>
            </style>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Run</property>
              </object>
            </child>
@@ -46,23 +42,19 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <child>
          <object class="GtkFrame">
-            <property name="visible">1</property>
            <child>
              <object class="GtkScrolledWindow">
-                <property name="width_request">120</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="hscrollbar_policy">never</property>
-                <property name="min_content_width">150</property>
+                <property name="width-request">120</property>
+                <property name="can-focus">1</property>
+                <property name="hscrollbar-policy">never</property>
+                <property name="min-content-width">150</property>
                <child>
                  <object class="GtkTreeView" id="treeview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="model">treestore</property>
-                    <property name="headers_visible">0</property>
+                    <property name="headers-visible">0</property>
                    <child internal-child="selection">
                      <object class="GtkTreeSelection" id="treeview-selection">
                        <property name="mode">browse</property>
@@ -92,77 +84,70 @@
        </child>
        <child>
          <object class="GtkNotebook" id="notebook">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="scrollable">1</property>
-            <property name="enable_popup">1</property>
-            <property name="show_border">0</property>
+            <property name="enable-popup">1</property>
+            <property name="show-border">0</property>
            <property name="expand">1</property>
            <child>
              <object class="GtkScrolledWindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <child>
                  <object class="GtkTextView" id="info-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="left-margin">20</property>
                    <property name="right-margin">20</property>
                    <property name="top-margin">20</property>
                    <property name="bottom-margin">20</property>
-                    <property name="pixels_above_lines">2</property>
-                    <property name="pixels_below_lines">2</property>
+                    <property name="pixels-above-lines">2</property>
+                    <property name="pixels-below-lines">2</property>
                    <property name="editable">0</property>
-                    <property name="wrap_mode">word</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="wrap-mode">word</property>
+                    <property name="cursor-visible">0</property>
                  </object>
                </child>
              </object>
              <packing>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
              </packing>
            </child>
            <child type="tab">
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Info</property>
-                <property name="use_underline">1</property>
+                <property name="use-underline">1</property>
              </object>
              <packing>
-                <property name="tab_expand">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-expand">1</property>
+                <property name="tab-fill">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkScrolledWindow" id="source-scrolledwindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <child>
                  <object class="GtkTextView" id="source-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="left-margin">20</property>
                    <property name="right-margin">20</property>
                    <property name="top-margin">20</property>
                    <property name="bottom-margin">20</property>
                    <property name="editable">0</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="cursor-visible">0</property>
                  </object>
                </child>
              </object>
              <packing>
                <property name="position">1</property>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
              </packing>
            </child>
            <child type="tab">
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Source</property>
              </object>
              <packing>
                <property name="position">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-fill">0</property>
              </packing>
            </child>
          </object>
@@ -26,7 +26,6 @@ demos = files([
  'expander.c',
  'filtermodel.c',
  'fishbowl.c',
-  'widgetbowl.c',
  'foreigndrawing.c',
  'gestures.c',
  'glarea.c',
@@ -45,6 +44,10 @@ demos = files([
  'modelbutton.c',
  'overlay.c',
  'overlay2.c',
+  'paint.c',
+  'paintable.c',
+  'paintable_animated.c',
+  'paintable_mediastream.c',
  'panes.c',
  'pickers.c',
  'pixbufs.c',
@@ -58,6 +61,7 @@ demos = files([
  'shortcuts.c',
  'sidebar.c',
  'sizegroup.c',
+  'sliding_puzzle.c',
  'spinbutton.c',
  'spinner.c',
  'stack.c',
@@ -66,15 +70,18 @@ demos = files([
  'textview.c',
  'textscroll.c',
  'theming_style_classes.c',
-  'toolpalette.c',
  'transparent.c',
  'tree_store.c',
+  'video_player.c',
 ])

 gtkdemo_deps = [ libgtk_dep, ]

+extra_demo_sources = files(['main.c', 'gtkfishbowl.c', 'fontplane.c', 'gtkgears.c', 'puzzlepiece.c'])
+
 if harfbuzz_dep.found() and pangoft_dep.found()
  demos += files('font_features.c')
+  extra_demo_sources += files(['script-names.c', 'language-names.c'])
  gtkdemo_deps += [ harfbuzz_dep, ]
 endif

@@ -94,11 +101,12 @@ gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
                                            source_dir: '.')

 executable('gtk4-demo',
-           'main.c', 'gtkfishbowl.c', demos, demos_h, gtkdemo_resources,
+                   demos, demos_h, extra_demo_sources, gtkdemo_resources,
           c_args: gtkdemo_args,
           dependencies: gtkdemo_deps,
           include_directories: confinc,
           gui_app: true,
+           link_args: extra_demo_ldflags,
           install: true)

 executable('gtk4-demo-application',
@@ -107,6 +115,7 @@ executable('gtk4-demo-application',
           dependencies: gtkdemo_deps,
           include_directories: confinc,
           gui_app: true,
+           link_args: extra_demo_ldflags,
           install: true)

 # icons
@@ -126,3 +135,6 @@ install_data('gtk4-demo.desktop', install_dir: gtk_applicationsdir)
 # GSettings
 install_data('org.gtk.Demo.gschema.xml', install_dir: gtk_schemasdir)
 gnome.compile_schemas()
+
+# appdata
+install_data('org.gtk.Demo.appdata.xml', install_dir: gtk_appdatadir)
@@ -4,23 +4,19 @@
  <object class="GtkWindow" id="window1">
    <child type="titlebar">
      <object class="GtkHeaderBar">
-        <property name="visible">1</property>
        <property name="show-title-buttons">1</property>
        <property name="title" translatable="yes">Model Button</property>
      </object>
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="margin">80</property>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_a</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Color</property>
                <property name="hexpand">1</property>
              </object>
@@ -29,11 +25,9 @@
        </child>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_b</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Flavors</property>
                <property name="hexpand">1</property>
              </object>
@@ -42,11 +36,9 @@
        </child>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_c</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Tools</property>
                <property name="hexpand">1</property>
              </object>
@@ -59,12 +51,10 @@
  <object class="GtkPopover" id="thing_a">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'red'</property>
            <property name="text">Red</property>
@@ -73,7 +63,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'green'</property>
            <property name="text">Green</property>
@@ -82,7 +71,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'blue'</property>
            <property name="text">Blue</property>
@@ -95,32 +83,27 @@
  <object class="GtkPopover" id="thing_b">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.chocolate</property>
            <property name="text">Chocolate</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.vanilla</property>
            <property name="text">Vanilla</property>
          </object>
        </child>
        <child>
          <object class="GtkSeparator">
-            <property name="visible">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.sprinkles</property>
            <property name="text">Add Sprinkles</property>
          </object>
@@ -131,13 +114,11 @@
  <object class="GtkPopover" id="thing_c">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Hammer</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
@@ -145,7 +126,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Screwdriver</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
@@ -153,7 +133,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Drill</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.gtk.Demo.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>LGPL-2.0+</project_license>
+  <name>GTK+ Demo</name>
+  <summary>Program to demonstrate GTK+ functions</summary>
+  <description>
+    <p>
+      GTK+ Demo is a collection of examples that demonstrate the major
+      features of the GTK+ toolkit.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-demo/gtk-demo1.png</image>
+      <caption>The main window</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-demo/gtk-demo2.png</image>
+      <caption>An example</caption>
+    </screenshot>
+  </screenshots>
+  <kudos>
+    <kudo>AppMenu</kudo>
+    <kudo>HiDpiIcon</kudo>
+    <kudo>ModernToolkit</kudo>
+  </kudos>
+  <url type="homepage">https://www.gtk.org</url>
+  <translation type="gettext">gtk-4.0</translation>
+  <update_contact>matthias.clasen_at_gmail.com</update_contact>
+  <developer_name>Matthias Clasen and others</developer_name>
+</component>
@@ -0,0 +1,283 @@
+/* Paint
+ *
+ * Demonstrates practical handling of drawing tablets in a real world
+ * usecase.
+ */
+#include <gtk/gtk.h>
+
+typedef struct
+{
+  GtkWidget parent_instance;
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  GdkRGBA draw_color;
+} DrawingArea;
+
+typedef struct
+{
+  GtkWidgetClass parent_class;
+} DrawingAreaClass;
+
+G_DEFINE_TYPE (DrawingArea, drawing_area, GTK_TYPE_WIDGET)
+
+static void
+drawing_area_ensure_surface (DrawingArea *area,
+                             gint         width,
+                             gint         height)
+{
+  if (!area->surface ||
+      cairo_image_surface_get_width (area->surface) != width ||
+      cairo_image_surface_get_height (area->surface) != height)
+    {
+      cairo_surface_t *surface;
+
+      surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+                                            width, height);
+      if (area->surface)
+        {
+          cairo_t *cr;
+
+          cr = cairo_create (surface);
+          cairo_set_source_surface (cr, area->surface, 0, 0);
+          cairo_paint (cr);
+
+          cairo_surface_destroy (area->surface);
+          cairo_destroy (area->cr);
+          cairo_destroy (cr);
+        }
+
+      area->surface = surface;
+      area->cr = cairo_create (surface);
+    }
+}
+
+static void
+drawing_area_size_allocate (GtkWidget           *widget,
+                            const GtkAllocation *allocation,
+                            int                  baseline)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+
+  drawing_area_ensure_surface (area, allocation->width, allocation->height);
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->size_allocate (widget, allocation, baseline);
+}
+
+static void
+drawing_area_map (GtkWidget *widget)
+{
+  GtkAllocation allocation;
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->map (widget);
+
+  gtk_widget_get_allocation (widget, &allocation);
+  drawing_area_ensure_surface ((DrawingArea *) widget,
+                               allocation.width, allocation.height);
+}
+
+static void
+drawing_area_unmap (GtkWidget *widget)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+
+  g_clear_pointer (&area->cr, cairo_destroy);
+  g_clear_pointer (&area->surface, cairo_surface_destroy);
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->unmap (widget);
+}
+
+static void
+drawing_area_snapshot (GtkWidget   *widget,
+		       GtkSnapshot *snapshot)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+  GtkAllocation allocation;
+  cairo_t *cr;
+
+  gtk_widget_get_allocation (widget, &allocation);
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT (
+                                    0, 0,
+				    allocation.width,
+				    allocation.height
+                                  ));
+
+  cairo_set_source_rgb (cr, 1, 1, 1);
+  cairo_paint (cr);
+
+  cairo_set_source_surface (cr, area->surface, 0, 0);
+  cairo_paint (cr);
+
+  cairo_set_source_rgb (cr, 0.6, 0.6, 0.6);
+  cairo_rectangle (cr, 0, 0, allocation.width, allocation.height);
+  cairo_stroke (cr);
+
+  cairo_destroy (cr);
+}
+
+static void
+drawing_area_class_init (DrawingAreaClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  widget_class->size_allocate = drawing_area_size_allocate;
+  widget_class->snapshot = drawing_area_snapshot;
+  widget_class->map = drawing_area_map;
+  widget_class->unmap = drawing_area_unmap;
+}
+
+static void
+drawing_area_apply_stroke (DrawingArea   *area,
+                           GdkDeviceTool *tool,
+                           gdouble        x,
+                           gdouble        y,
+                           gdouble        pressure)
+{
+  if (gdk_device_tool_get_tool_type (tool) == GDK_DEVICE_TOOL_TYPE_ERASER)
+    {
+      cairo_set_line_width (area->cr, 10 * pressure);
+      cairo_set_operator (area->cr, CAIRO_OPERATOR_DEST_OUT);
+    }
+  else
+    {
+      cairo_set_line_width (area->cr, 4 * pressure);
+      cairo_set_operator (area->cr, CAIRO_OPERATOR_SATURATE);
+    }
+
+  cairo_set_source_rgba (area->cr, area->draw_color.red,
+                         area->draw_color.green, area->draw_color.blue,
+                         area->draw_color.alpha * pressure);
+
+  //cairo_set_source_rgba (area->cr, 0, 0, 0, pressure);
+
+  cairo_line_to (area->cr, x, y);
+  cairo_stroke (area->cr);
+  cairo_move_to (area->cr, x, y);
+}
+
+static void
+stylus_gesture_down (GtkGestureStylus *gesture,
+                     gdouble           x,
+                     gdouble           y,
+                     DrawingArea      *area)
+{
+  cairo_new_path (area->cr);
+}
+
+static void
+stylus_gesture_motion (GtkGestureStylus *gesture,
+                       gdouble           x,
+                       gdouble           y,
+                       DrawingArea      *area)
+{
+  GdkTimeCoord *backlog;
+  GdkDeviceTool *tool;
+  gdouble pressure;
+  guint n_items;
+
+  tool = gtk_gesture_stylus_get_device_tool (gesture);
+
+  if (gtk_gesture_stylus_get_backlog (gesture, &backlog, &n_items))
+    {
+      guint i;
+
+      for (i = 0; i < n_items; i++)
+        {
+          drawing_area_apply_stroke (area, tool,
+                                     backlog[i].axes[GDK_AXIS_X],
+                                     backlog[i].axes[GDK_AXIS_Y],
+                                     backlog[i].axes[GDK_AXIS_PRESSURE]);
+        }
+
+      g_free (backlog);
+    }
+  else
+    {
+      if (!gtk_gesture_stylus_get_axis (gesture, GDK_AXIS_PRESSURE, &pressure))
+        pressure = 1;
+
+      drawing_area_apply_stroke (area, tool, x, y, pressure);
+    }
+
+  gtk_widget_queue_draw (GTK_WIDGET (area));
+}
+
+static void
+drawing_area_init (DrawingArea *area)
+{
+  GtkGesture *gesture;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (area), FALSE);
+
+  gesture = gtk_gesture_stylus_new ();
+  g_signal_connect (gesture, "down",
+                    G_CALLBACK (stylus_gesture_down), area);
+  g_signal_connect (gesture, "motion",
+                    G_CALLBACK (stylus_gesture_motion), area);
+  gtk_widget_add_controller (GTK_WIDGET (area), GTK_EVENT_CONTROLLER (gesture));
+
+  area->draw_color = (GdkRGBA) { 0, 0, 0, 1 };
+}
+
+GtkWidget *
+drawing_area_new (void)
+{
+  return g_object_new (drawing_area_get_type (), NULL);
+}
+
+void
+drawing_area_set_color (DrawingArea *area,
+                        GdkRGBA     *color)
+{
+  area->draw_color = *color;
+}
+
+static void
+color_button_color_set (GtkColorButton *button,
+                        DrawingArea    *draw_area)
+{
+  GdkRGBA color;
+
+  gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (button), &color);
+  drawing_area_set_color (draw_area, &color);
+}
+
+GtkWidget *
+do_paint (GtkWidget *toplevel)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *draw_area, *headerbar, *colorbutton;
+
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+      draw_area = drawing_area_new ();
+      gtk_container_add (GTK_CONTAINER (window), draw_area);
+
+      headerbar = gtk_header_bar_new ();
+      gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), "Paint");
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (headerbar), TRUE);
+
+      colorbutton = gtk_color_button_new ();
+      g_signal_connect (colorbutton, "color-set",
+                        G_CALLBACK (color_button_color_set), draw_area);
+      gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (colorbutton),
+                                  &(GdkRGBA) { 0, 0, 0, 1 });
+
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (headerbar), colorbutton);
+      gtk_window_set_titlebar (GTK_WINDOW (window), headerbar);
+
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -0,0 +1,177 @@
+/* Paintable/A simple paintable
+ *
+ * GdkPaintable is an interface used by GTK for drawings of any sort
+ * that do not require layouting or positioning.
+ *
+ * This demo code gives a simple example on how a paintable can
+ * be created.
+ *
+ * Paintables can be used in many places inside GTK widgets, but the
+ * most common usage is inside GtkImage and that's what we're going
+ * to do here.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_ICON (gtk_nuclear_icon_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearIcon, gtk_nuclear_icon, GTK, NUCLEAR_ICON, GObject)
+
+/* Declare the struct. */
+struct _GtkNuclearIcon
+{
+  GObject parent_instance;
+
+  /* We store this rotation value here.
+   * We are not doing with it here, but it will come in
+   * very useful in the followup demos.
+   */
+  double rotation;
+};
+
+struct _GtkNuclearIconClass
+{
+  GObjectClass parent_class;
+};
+
+/* This is the function that draws the actual icon.
+ * We make it a custom function and define it in the paintable.h header
+ * so that it can be called from all the other demos, too.
+ */
+void
+gtk_nuclear_snapshot (GtkSnapshot *snapshot,
+                      double       width,
+                      double       height,
+                      double       rotation)
+{
+#define RADIUS 0.3
+  cairo_t *cr;
+  double size;
+
+  gtk_snapshot_append_color (snapshot,
+                             &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 },
+                             &GRAPHENE_RECT_INIT (0, 0, width, height));
+
+  size = MIN (width, height);
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT ((width - size) / 2.0,
+                                                       (height - size) / 2.0,
+                                                       size, size));
+  cairo_translate (cr, width / 2.0, height / 2.0);
+  cairo_scale (cr, size, size);
+  cairo_rotate (cr, rotation);
+
+  cairo_arc (cr, 0, 0, 0.1, - G_PI, G_PI);
+  cairo_fill (cr);
+
+  cairo_set_line_width (cr, RADIUS);
+  cairo_set_dash (cr, (double[1]) { RADIUS * G_PI / 3 }, 1, 0.0);
+  cairo_arc (cr, 0, 0, RADIUS, - G_PI, G_PI);
+  cairo_stroke (cr);
+
+  cairo_destroy (cr);
+}
+
+/* Here, we implement the functionality required by the GdkPaintable interface */
+static void
+gtk_nuclear_icon_snapshot (GdkPaintable *paintable,
+                           GdkSnapshot  *snapshot,
+                           double        width,
+                           double        height)
+{
+  GtkNuclearIcon *nuclear = GTK_NUCLEAR_ICON (paintable);
+
+  /* The snapshot function is the only function we need to implement.
+   * It does the actual drawing of the paintable.
+   */
+
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        nuclear->rotation);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_icon_get_flags (GdkPaintable *paintable)
+{
+  /* The flags are very useful to let GTK know that this image
+   * is never going to change.
+   * This allows many optimizations and should therefore always
+   * be set.
+   */
+  return GDK_PAINTABLE_STATIC_CONTENTS | GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_icon_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_icon_snapshot;
+  iface->get_flags = gtk_nuclear_icon_get_flags;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearIcon, gtk_nuclear_icon, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_icon_paintable_init))
+
+/* Here's the boilerplate for the GObject declaration.
+ * We don't need to do anything special here, because we keep no
+ * data of our own.
+ */
+static void
+gtk_nuclear_icon_class_init (GtkNuclearIconClass *klass)
+{
+}
+
+static void
+gtk_nuclear_icon_init (GtkNuclearIcon *nuclear)
+{
+}
+
+/* And finally, we add a simple constructor.
+ * It is declared in the header so that the other examples
+ * can use it.
+ */
+GdkPaintable *
+gtk_nuclear_icon_new (double rotation)
+{
+  GtkNuclearIcon *nuclear;
+
+  nuclear = g_object_new (GTK_TYPE_NUCLEAR_ICON, NULL);
+  nuclear->rotation = rotation;
+
+  return GDK_PAINTABLE (nuclear);
+}
+
+GtkWidget *
+do_paintable (GtkWidget *do_widget)
+{
+  GdkPaintable *nuclear;
+  GtkWidget *image;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear Icon");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_icon_new (0.0);
+      image = gtk_image_new_from_paintable (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), image);
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -0,0 +1,15 @@
+#ifndef __PAINTABLE_H__
+#define __PAINTABLE_H__
+
+#include <gtk/gtk.h>
+
+void            gtk_nuclear_snapshot           (GtkSnapshot     *snapshot,
+                                                double           width,
+                                                double           height,
+                                                double           rotation);
+
+GdkPaintable *  gtk_nuclear_icon_new            (double          rotation);
+GdkPaintable *  gtk_nuclear_animation_new       (void);
+GtkMediaStream *gtk_nuclear_media_stream_new    (void);
+
+#endif /* __PAINTABLE_H__ */
@@ -0,0 +1,209 @@
+/* Paintable/An animated paintable
+ *
+ * GdkPaintable also allows paintables to change.
+ *
+ * This demo code gives an example of how this could work. It builds
+ * on the previous simple example.
+ *
+ * Paintables can also change their size, this works similarly, but
+ * we will not demonstrate this here as our icon does not have any size.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_ANIMATION (gtk_nuclear_animation_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearAnimation, gtk_nuclear_animation, GTK, NUCLEAR_ANIMATION, GObject)
+
+/* Do a full rotation in 5 seconds.
+ * We will register the timeout for doing a single step to
+ * be executed every 10ms, which means after 1000 steps
+ * 10s will have elapsed.
+ */
+#define MAX_PROGRESS 500
+
+/* Declare the struct. */
+struct _GtkNuclearAnimation
+{
+  GObject parent_instance;
+
+  /* This variable stores the progress of our animation.
+   * We just count upwards until we hit MAX_PROGRESS and
+   * then start from scratch.
+   */
+  int progress;
+
+  /* This variable holds the ID of the timer that updates
+   * our progress variable.
+   * We need to keep track of it so that we can remove it
+   * again.
+   */
+  guint source_id;
+};
+
+struct _GtkNuclearAnimationClass
+{
+  GObjectClass parent_class;
+};
+
+/* Again, we implement the functionality required by the GdkPaintable interface */
+static void
+gtk_nuclear_animation_snapshot (GdkPaintable *paintable,
+                                GdkSnapshot  *snapshot,
+                                double        width,
+                                double        height)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (paintable);
+
+  /* We call the function from the previous example here. */
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        2 * G_PI * nuclear->progress / MAX_PROGRESS);
+}
+
+static GdkPaintable *
+gtk_nuclear_animation_get_current_image (GdkPaintable *paintable)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (paintable);
+
+  /* For non-static paintables, this function needs to be implemented.
+   * It must return a static paintable with the same contents
+   * as this one currently has.
+   *
+   * Luckily we added the rotation property to the nuclear icon
+   * object previously, so we can just return an instance of that one.
+   */
+  return gtk_nuclear_icon_new (2 * G_PI * nuclear->progress / MAX_PROGRESS);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_animation_get_flags (GdkPaintable *paintable)
+{
+  /* This time, we cannot set the static contents flag because our animation
+   * changes the contents.
+   * However, our size still doesn't change, so report that flag.
+   */
+  return GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_animation_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_animation_snapshot;
+  iface->get_current_image = gtk_nuclear_animation_get_current_image;
+  iface->get_flags = gtk_nuclear_animation_get_flags;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearAnimation, gtk_nuclear_animation, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_animation_paintable_init))
+
+/* This time, we need to implement the finalize function,
+ */
+static void
+gtk_nuclear_animation_finalize (GObject *object)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (object);
+
+  /* Remove the timeout we registered when constructing
+   * the object. 
+   */
+  g_source_remove (nuclear->source_id);
+
+  /* Don't forget to chain up to the parent class' implementation
+   * of the finalize function.
+   */
+  G_OBJECT_CLASS (gtk_nuclear_animation_parent_class)->finalize (object);
+}
+
+/* In the class declaration, we need to add our finalize function.
+ */
+static void
+gtk_nuclear_animation_class_init (GtkNuclearAnimationClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->finalize = gtk_nuclear_animation_finalize;
+}
+
+static gboolean
+gtk_nuclear_animation_step (gpointer data)
+{
+  GtkNuclearAnimation *nuclear = data;
+
+  /* Add 1 to the progress and reset it when we've reached
+   * the maximum value.
+   * The animation will rotate by 360 degrees at MAX_PROGRESS
+   * so it will be identical to the original unrotated one.
+   */
+  nuclear->progress = (nuclear->progress + 1) % MAX_PROGRESS;
+
+  /* Now we need to tell all listeners that we've changed out contents
+   * so that they can redraw this paintable.
+   */
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+
+  /* We want this timeout function to be called repeatedly,
+   * so we return this value here.
+   * If this was a single-shot timeout, we could also
+   * return G_SOURCE_REMOVE here to get rid of it.
+   */
+  return G_SOURCE_CONTINUE;
+}
+
+static void
+gtk_nuclear_animation_init (GtkNuclearAnimation *nuclear)
+{
+  /* Add a timer here that constantly updates our animations.
+   * We want to update it often enough to guarantee a smooth animation.
+   *
+   * Ideally, we'd attach to the frame clock, but because we do
+   * not have it available here, we just use a regular timeout
+   * that hopefully triggers often enough to be smooth.
+   */
+  nuclear->source_id = g_timeout_add (10,
+                                      gtk_nuclear_animation_step,
+                                      nuclear);
+}
+
+/* And finally, we add the simple constructor we declared in the header. */
+GdkPaintable *
+gtk_nuclear_animation_new (void)
+{
+  return g_object_new (GTK_TYPE_NUCLEAR_ANIMATION, NULL);
+}
+
+GtkWidget *
+do_paintable_animated (GtkWidget *do_widget)
+{
+  GdkPaintable *nuclear;
+  GtkWidget *image;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear Animation");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_animation_new ();
+      image = gtk_image_new_from_paintable (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), image);
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -0,0 +1,312 @@
+/* Paintable/A media stream
+ *
+ * GdkPaintable is also used by the GtkMediaStream class.
+ *
+ * This demo code turns the nuclear media_stream into the object
+ * GTK uses for videos. This allows treating the icon like a
+ * regular video, so we can for example attach controls to it.
+ *
+ * After all, what good is an media_stream if one cannot pause
+ * it.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_MEDIA_STREAM (gtk_nuclear_media_stream_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearMediaStream, gtk_nuclear_media_stream, GTK, NUCLEAR_MEDIA_STREAM, GtkMediaStream)
+
+/* Do a full rotation in 5 seconds.
+ *
+ * We do not save steps here but real timestamps.
+ * GtkMediaStream uses microseconds, so we will do so, too.
+ */
+#define DURATION (5 * G_USEC_PER_SEC)
+
+/* Declare the struct. */
+struct _GtkNuclearMediaStream
+{
+  /* We now inherit from the media stream object. */
+  GtkMediaStream parent_instance;
+
+  /* This variable stores the progress of our video.
+   */
+  gint64 progress;
+
+  /* This variable stores the timestamp of the last
+   * time we updated the progress variable when the
+   * video is currently playing.
+   * This is so that we can always accurately compute the
+   * progress we've had, even if the timeout does not
+   * exactly work.
+   */
+  gint64 last_time;
+
+  /* This variable again holds the ID of the timer that 
+   * updates our progress variable. Nothing changes about
+   * how this works compared to the previous example.
+   */
+  guint source_id;
+};
+
+struct _GtkNuclearMediaStreamClass
+{
+  GObjectClass parent_class;
+};
+
+/* GtkMediaStream is a GdkPaintable. So when we want to display video,
+ * we have to implement the interface, just like in the animation example.
+ */
+static void
+gtk_nuclear_media_stream_snapshot (GdkPaintable *paintable,
+                                   GdkSnapshot  *snapshot,
+                                   double        width,
+                                   double        height)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (paintable);
+
+  /* We call the function from the previous example here. */
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        2 * G_PI * nuclear->progress / DURATION);
+}
+
+static GdkPaintable *
+gtk_nuclear_media_stream_get_current_image (GdkPaintable *paintable)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (paintable);
+
+  /* Same thing as with the animation */
+  return gtk_nuclear_icon_new (2 * G_PI * nuclear->progress / DURATION);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_media_stream_get_flags (GdkPaintable *paintable)
+{
+  /* And same thing as with the animation over here, too. */
+  return GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_media_stream_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_media_stream_snapshot;
+  iface->get_current_image = gtk_nuclear_media_stream_get_current_image;
+  iface->get_flags = gtk_nuclear_media_stream_get_flags;
+}
+
+/* This time, we inherit from GTK_TYPE_MEDIA_STREAM */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearMediaStream, gtk_nuclear_media_stream, GTK_TYPE_MEDIA_STREAM,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_media_stream_paintable_init))
+
+static gboolean
+gtk_nuclear_media_stream_step (gpointer data)
+{
+  GtkNuclearMediaStream *nuclear = data;
+  gint64 current_time;
+
+  /* Compute the time that has elapsed since the last time we were called
+   * and add it to our current progress.
+   */
+  current_time = g_source_get_time (g_main_current_source ());
+  nuclear->progress += current_time - nuclear->last_time;
+
+  /* Check if we've ended */
+  if (nuclear->progress > DURATION)
+    {
+      if (gtk_media_stream_get_loop (GTK_MEDIA_STREAM (nuclear)))
+        {
+          /* We're looping. So make the progress loop using modulo */
+          nuclear->progress %= DURATION;
+        }
+      else
+        {
+          /* Just make sure we don't overflow */
+          nuclear->progress = DURATION;
+        }
+    }
+
+  /* Update the last time to the current timestamp. */
+  nuclear->last_time = current_time;
+
+  /* Update the timestamp of the media stream */
+  gtk_media_stream_update (GTK_MEDIA_STREAM (nuclear), nuclear->progress);
+
+  /* We also need to invalidate our contents again.
+   * After all, we are a video and not just an audio stream.
+   */
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+
+  /* Now check if we have finished playing and if so,
+   * tell the media stream. The media stream will then
+   * call our pause function to pause the stream.
+   */
+  if (nuclear->progress >= DURATION)
+    gtk_media_stream_ended (GTK_MEDIA_STREAM (nuclear));
+
+  /* The timeout function is removed by the pause function,
+   * so we can just always return this value.
+   */
+  return G_SOURCE_CONTINUE;
+}
+
+static gboolean
+gtk_nuclear_media_stream_play (GtkMediaStream *stream)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* If we're already at the end of the stream, we don't want
+   * to start playing and exit early.
+   */
+  if (nuclear->progress >= DURATION)
+    return FALSE;
+
+  /* This time, we add the source only when we start playing.
+   */
+  nuclear->source_id = g_timeout_add (10,
+                                      gtk_nuclear_media_stream_step,
+                                      nuclear);
+
+  /* We also want to initialize our time, so that we can
+   * do accurate updates.
+   */
+  nuclear->last_time = g_get_monotonic_time ();
+  
+  /* We successfully started playing, so we return TRUE here. */
+  return TRUE;
+}
+
+static void
+gtk_nuclear_media_stream_pause (GtkMediaStream *stream)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* This function will be called when a playing stream
+   * gets paused.
+   * So we remove the updating source here and set it
+   * back to 0 so that the finalize function doesn't try
+   * to remove it again.
+   */
+  g_source_remove (nuclear->source_id);
+  nuclear->source_id = 0;
+  nuclear->last_time = 0;
+}
+
+static void
+gtk_nuclear_media_stream_seek (GtkMediaStream *stream,
+                               gint64          timestamp)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* This is optional functionality for media streams,
+   * but not being able to seek is kinda boring.
+   * And it's trivial to implement, so let's go for it.
+   */
+  nuclear->progress = timestamp;
+
+  /* Media streams are asynchronous, so seeking can take a while.
+   * We however don't need that functionality, so we can just
+   * report success.
+   */
+  gtk_media_stream_seek_success (stream);
+
+  /* We also have to update our timestamp and tell the
+   * paintable interface abbout the seek
+   */
+  gtk_media_stream_update (stream, nuclear->progress);
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+}
+
+/* Again, we need to implement the finalize function.
+ */
+static void
+gtk_nuclear_media_stream_finalize (GObject *object)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (object);
+
+  /* This time, we need to check if the source exists before
+   * removing it as it only exists while we are playing.
+   */
+  if (nuclear->source_id > 0)
+    g_source_remove (nuclear->source_id);
+
+  /* Don't forget to chain up to the parent class' implementation
+   * of the finalize function.
+   */
+  G_OBJECT_CLASS (gtk_nuclear_media_stream_parent_class)->finalize (object);
+}
+
+/* In the class declaration, we need to implement the media stream */
+static void
+gtk_nuclear_media_stream_class_init (GtkNuclearMediaStreamClass *klass)
+{
+  GtkMediaStreamClass *stream_class = GTK_MEDIA_STREAM_CLASS (klass);
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  stream_class->play = gtk_nuclear_media_stream_play;
+  stream_class->pause = gtk_nuclear_media_stream_pause;
+  stream_class->seek = gtk_nuclear_media_stream_seek;
+
+  gobject_class->finalize = gtk_nuclear_media_stream_finalize;
+}
+
+static void
+gtk_nuclear_media_stream_init (GtkNuclearMediaStream *nuclear)
+{
+  /* This time, we don't have to add a timer here, because media
+   * streams start paused.
+   *
+   * However, media streams need to tell GTK once they are intialized,
+   * so we do that here.
+   */
+  gtk_media_stream_prepared (GTK_MEDIA_STREAM (nuclear),
+                             FALSE,
+                             TRUE,
+                             TRUE,
+                             DURATION);
+}
+
+/* And finally, we add the simple constructor we declared in the header. */
+GtkMediaStream *
+gtk_nuclear_media_stream_new (void)
+{
+  return g_object_new (GTK_TYPE_NUCLEAR_MEDIA_STREAM, NULL);
+}
+
+GtkWidget *
+do_paintable_mediastream (GtkWidget *do_widget)
+{
+  GtkMediaStream *nuclear;
+  GtkWidget *video;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear MediaStream");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_media_stream_new ();
+      gtk_media_stream_set_loop (GTK_MEDIA_STREAM (nuclear), TRUE);
+
+      video = gtk_video_new_for_media_stream (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), video);
+
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -58,8 +58,7 @@ static void
 entry_size_allocate_cb (GtkEntry            *entry,
                        const GtkAllocation *allocation,
                        int                  baseline,
-                        GtkAllocation       *out_clip,
-                        gpointer       user_data)
+                        gpointer             user_data)
 {
  GtkEntryIconPosition popover_pos;
  GtkPopover *popover = user_data;
@@ -120,7 +119,7 @@ day_selected_cb (GtkCalendar *calendar,

  gtk_widget_show (popover);

-  gdk_event_free (event);
+  g_object_unref (event);
 }

 GtkWidget *
@@ -43,32 +43,28 @@
  <object class="GtkWindow" id="window">
    <child>
      <object class="GtkBox" id="box">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="spacing">6</property>
        <child>
          <object class="GtkEntry" id="entry1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="primary_icon_name">edit-find</property>
-            <property name="secondary_icon_name">edit-clear</property>
+            <property name="can-focus">1</property>
+            <property name="primary-icon-name">edit-find</property>
+            <property name="secondary-icon-name">edit-clear</property>
          </object>
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="shadow_type">in</property>
+            <property name="can-focus">1</property>
+            <property name="shadow-type">in</property>
            <property name="max-content-height">100</property>
            <child>
              <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <property name="vexpand">1</property>
                <property name="model">liststore1</property>
-                <property name="headers_visible">0</property>
-                <property name="enable_search">0</property>
-                <property name="search_column">2</property>
+                <property name="headers-visible">0</property>
+                <property name="enable-search">0</property>
+                <property name="search-column">2</property>
                <child internal-child="selection">
                  <object class="GtkTreeSelection" id="treeview-selection1"/>
                </child>
@@ -0,0 +1,220 @@
+/* Paintable/A simple paintable
+ *
+ * GdkPaintable is an interface used by GTK for drawings of any sort
+ * that do not require layouting or positioning.
+ *
+ * This demo code gives a simple example on how a paintable can
+ * be created.
+ *
+ * Paintables can be used in many places inside GTK widgets, but the
+ * most common usage is inside GtkImage and that's what we're going
+ * to do here.
+ */
+
+#include <gtk/gtk.h>
+
+#include "puzzlepiece.h"
+
+/* Declare the struct. */
+struct _GtkPuzzlePiece
+{
+  GObject parent_instance;
+
+  GdkPaintable *puzzle;
+  guint x;
+  guint y;
+  guint width;
+  guint height;
+};
+
+struct _GtkPuzzlePieceClass
+{
+  GObjectClass parent_class;
+};
+
+/* This is the function that draws the puzzle piece.
+ * It just draws a rectangular cutout of the puzzle by clipping
+ * away the rest.
+ */
+static void
+gtk_puzzle_piece_snapshot (GdkPaintable *paintable,
+                           GdkSnapshot  *snapshot,
+                           double        width,
+                           double        height)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
+
+  gtk_snapshot_push_clip (snapshot,
+                          &GRAPHENE_RECT_INIT (0, 0, width, height));
+
+  gtk_snapshot_offset (snapshot,
+                       - width * self->x,
+                       - height * self->y);
+  gdk_paintable_snapshot (self->puzzle,
+                          snapshot,
+                          width * self->width,
+                          height * self->height);
+
+  gtk_snapshot_pop (snapshot);
+}
+
+static GdkPaintableFlags
+gtk_puzzle_piece_get_flags (GdkPaintable *paintable)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
+
+  /* The flags are the same as the ones of the puzzle.
+   * If the puzzle changes in some way, so do the pieces.
+   */
+  return gdk_paintable_get_flags (self->puzzle);
+}
+
+static int
+gtk_puzzle_piece_get_intrinsic_width (GdkPaintable *paintable)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
+
+  /* We can compute our width relative to the puzzle.
+   * This logic even works for the case where the puzzle
+   * has no width, because the 0 return value is unchanged.
+   * Round up the value.
+   */
+  return (gdk_paintable_get_intrinsic_width (self->puzzle) + self->width - 1) / self->width;
+}
+
+static int
+gtk_puzzle_piece_get_intrinsic_height (GdkPaintable *paintable)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
+
+  /* Do the same thing we did for the width with the height.
+   */
+  return (gdk_paintable_get_intrinsic_height (self->puzzle) + self->height - 1) / self->height;
+}
+
+static double
+gtk_puzzle_piece_get_intrinsic_aspect_ratio (GdkPaintable *paintable)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
+
+  /* We can compute our aspect ratio relative to the puzzle.
+   * This logic again works for the case where the puzzle
+   * has no aspect ratio, because the 0 return value is unchanged.
+   */
+  return gdk_paintable_get_intrinsic_aspect_ratio (self->puzzle) * self->height / self->width;
+}
+
+static void
+gtk_puzzle_piece_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_puzzle_piece_snapshot;
+  iface->get_flags = gtk_puzzle_piece_get_flags;
+  iface->get_intrinsic_width = gtk_puzzle_piece_get_intrinsic_width;
+  iface->get_intrinsic_height = gtk_puzzle_piece_get_intrinsic_height;
+  iface->get_intrinsic_aspect_ratio = gtk_puzzle_piece_get_intrinsic_aspect_ratio;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkPuzzlePiece, gtk_puzzle_piece, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_puzzle_piece_paintable_init))
+
+/* We need to declare a destructor to release our reference to the
+ * puzzle paintable and disconnect our signal handlers.
+ */
+static void
+gtk_puzzle_piece_dispose (GObject *object)
+{
+  GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (object);
+
+  if (self->puzzle)
+    {
+      g_signal_handlers_disconnect_by_func (self->puzzle, gdk_paintable_invalidate_contents, self);
+      g_signal_handlers_disconnect_by_func (self->puzzle, gdk_paintable_invalidate_size, self);
+      g_clear_object (&self->puzzle);
+    }
+
+  G_OBJECT_CLASS (gtk_puzzle_piece_parent_class)->dispose (object);
+}
+
+/* Here's the boilerplate for the GObject declaration.
+ */
+static void
+gtk_puzzle_piece_class_init (GtkPuzzlePieceClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->dispose = gtk_puzzle_piece_dispose;
+}
+
+static void
+gtk_puzzle_piece_init (GtkPuzzlePiece *self)
+{
+}
+
+/* And finally, we add a constructor.
+ * It is declared in the header so that the other examples
+ * can use it.
+ */
+GdkPaintable *
+gtk_puzzle_piece_new (GdkPaintable *puzzle,
+                      guint         x,
+                      guint         y,
+                      guint         width,
+                      guint         height)
+{
+  GtkPuzzlePiece *self;
+
+  /* These are sanity checks, so that we get warnings if we accidentally
+   * do anything stupid. */
+  g_return_val_if_fail (GDK_IS_PAINTABLE (puzzle), NULL);
+  g_return_val_if_fail (width > 0, NULL);
+  g_return_val_if_fail (height > 0, NULL);
+  g_return_val_if_fail (x < width, NULL);
+  g_return_val_if_fail (y < height, NULL);
+
+  self = g_object_new (GTK_TYPE_PUZZLE_PIECE, NULL);
+
+  self->puzzle = g_object_ref (puzzle);
+  g_signal_connect_swapped (puzzle, "invalidate-contents", G_CALLBACK (gdk_paintable_invalidate_contents), self);
+  g_signal_connect_swapped (puzzle, "invalidate-size", G_CALLBACK (gdk_paintable_invalidate_size), self);
+  self->x = x;
+  self->y = y;
+  self->width = width;
+  self->height = height;
+
+  return GDK_PAINTABLE (self);
+}
+
+/* Here are the accessors that we need to inspect the puzzle
+ * pieces in other code.
+ */
+GdkPaintable *
+gtk_puzzle_piece_get_puzzle (GtkPuzzlePiece *self)
+{
+  /* Add sanity checks here, too.
+   * If you make a habit out of this, you can always rely
+   * on your code having sanity checks, which makes it
+   * way easier to debug.
+   */
+  g_return_val_if_fail (GTK_IS_PUZZLE_PIECE (self), NULL);
+
+  return self->puzzle;
+}
+
+guint
+gtk_puzzle_piece_get_x (GtkPuzzlePiece *self)
+{
+  g_return_val_if_fail (GTK_IS_PUZZLE_PIECE (self), 0);
+
+  return self->x;
+}
+
+guint
+gtk_puzzle_piece_get_y (GtkPuzzlePiece *self)
+{
+  g_return_val_if_fail (GTK_IS_PUZZLE_PIECE (self), 0);
+
+  return self->y;
+}
+
@@ -0,0 +1,23 @@
+#ifndef __PUZZLE_PIECE_H__
+#define __PUZZLE_PIECE_H__
+
+#include <gtk/gtk.h>
+
+/* First, add the boilerplate for the object itself.
+ */
+#define GTK_TYPE_PUZZLE_PIECE (gtk_puzzle_piece_get_type ())
+G_DECLARE_FINAL_TYPE (GtkPuzzlePiece, gtk_puzzle_piece, GTK, PUZZLE_PIECE, GObject)
+
+/* Then, declare all constructors */
+GdkPaintable *  gtk_puzzle_piece_new            (GdkPaintable           *puzzle,
+                                                 guint                   x,
+                                                 guint                   y,
+                                                 guint                   width,
+                                                 guint                   height);
+
+/* Next, add the getters and setters for object properties */
+GdkPaintable *  gtk_puzzle_piece_get_puzzle     (GtkPuzzlePiece         *self);
+guint           gtk_puzzle_piece_get_x          (GtkPuzzlePiece         *self);
+guint           gtk_puzzle_piece_get_y          (GtkPuzzlePiece         *self);
+
+#endif /* __PUZZLE_PIECE_H__ */
@@ -2,22 +2,19 @@
 <interface>
  <!-- interface-requires gtk+ 3.6 -->
  <object class="GtkWindow" id="window">
-    <property name="default_width">300</property>
-    <property name="default_height">300</property>
+    <property name="default-width">300</property>
+    <property name="default-height">300</property>
    <property name="title">Revealer</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <property name="halign">center</property>
        <property name="valign">center</property>
        <child>
          <object class="GtkRevealer" id="revealer0">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -30,12 +27,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer1">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-up</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -48,12 +43,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer2">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-right</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -66,11 +59,9 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer3">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -83,12 +74,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer4">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-left</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -101,12 +90,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer5">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-up</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -119,12 +106,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer6">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-right</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -137,11 +122,9 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer7">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -154,12 +137,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer8">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-left</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -23,52 +23,56 @@
    <property name="title" translatable="yes">Scales</property>
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="row-spacing">10</property>
        <property name="column-spacing">10</property>
        <property name="margin">20</property>
        <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_plain">
            <property name="label">Plain</property>
            <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_plain"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_plain">
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment1</property>
            <property name="hexpand">1</property>
+            <accessibility>
+              <relation type="labelled-by" target="label_plain"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_marks">
            <property name="label">Marks</property>
            <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_marks"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_marks">
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment2</property>
            <property name="hexpand">1</property>
            <marks>
@@ -78,32 +82,39 @@
              <mark value="3" position="bottom"></mark>
              <mark value="4" position="bottom"></mark>
            </marks>
+            <accessibility>
+              <relation type="labelled-by" target="label_marks"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_discrete">
            <property name="label">Discrete</property>
            <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_discrete"/>
+            </accessibility>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_discrete">
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
            <property name="round-digits">0</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment3</property>
            <property name="hexpand">1</property>
+            <accessibility>
+              <relation type="labelled-by" target="label_discrete"/>
+            </accessibility>
            <marks>
              <mark value="0" position="bottom"></mark>
              <mark value="1" position="bottom"></mark>
@@ -113,8 +124,8 @@
            </marks>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
      </object>
@@ -0,0 +1,184 @@
+#include "config.h"
+#include <glib.h>
+#include <glib/gi18n-lib.h>
+#include <hb-ot.h>
+
+#include "script-names.h"
+
+static struct {
+  GUnicodeScript script;
+  hb_script_t hb_script;
+  const char *name;
+} scripts[] =
+{
+  { G_UNICODE_SCRIPT_COMMON, HB_SCRIPT_COMMON,  NULL },
+  { G_UNICODE_SCRIPT_INHERITED, HB_SCRIPT_INHERITED,  NULL },
+  { G_UNICODE_SCRIPT_ARABIC, HB_SCRIPT_ARABIC,  NC_("Script", "Arabic") },
+  { G_UNICODE_SCRIPT_ARMENIAN, HB_SCRIPT_ARMENIAN,  NC_("Script", "Armenian") },
+  { G_UNICODE_SCRIPT_BENGALI, HB_SCRIPT_BENGALI,  NC_("Script", "Bengali") },
+  { G_UNICODE_SCRIPT_BOPOMOFO, HB_SCRIPT_BOPOMOFO,  NC_("Script", "Bopomofo") },
+  { G_UNICODE_SCRIPT_CHEROKEE, HB_SCRIPT_CHEROKEE,  NC_("Script", "Cherokee") },
+  { G_UNICODE_SCRIPT_COPTIC, HB_SCRIPT_COPTIC,  NC_("Script", "Coptic") },
+  { G_UNICODE_SCRIPT_CYRILLIC, HB_SCRIPT_CYRILLIC,  NC_("Script", "Cyrillic") },
+  { G_UNICODE_SCRIPT_DESERET, HB_SCRIPT_DESERET,  NC_("Script", "Deseret") },
+  { G_UNICODE_SCRIPT_DEVANAGARI, HB_SCRIPT_DEVANAGARI,  NC_("Script", "Devanagari") },
+  { G_UNICODE_SCRIPT_ETHIOPIC, HB_SCRIPT_ETHIOPIC,  NC_("Script", "Ethiopic") },
+  { G_UNICODE_SCRIPT_GEORGIAN, HB_SCRIPT_GEORGIAN,  NC_("Script", "Georgian") },
+  { G_UNICODE_SCRIPT_GOTHIC, HB_SCRIPT_GOTHIC,  NC_("Script", "Gothic") },
+  { G_UNICODE_SCRIPT_GREEK, HB_SCRIPT_GREEK,  NC_("Script", "Greek") },
+  { G_UNICODE_SCRIPT_GUJARATI, HB_SCRIPT_GUJARATI,  NC_("Script", "Gujarati") },
+  { G_UNICODE_SCRIPT_GURMUKHI, HB_SCRIPT_GURMUKHI,  NC_("Script", "Gurmukhi") },
+  { G_UNICODE_SCRIPT_HAN, HB_SCRIPT_HAN,  NC_("Script", "Han") },
+  { G_UNICODE_SCRIPT_HANGUL, HB_SCRIPT_HANGUL,  NC_("Script", "Hangul") },
+  { G_UNICODE_SCRIPT_HEBREW, HB_SCRIPT_HEBREW,  NC_("Script", "Hebrew") },
+  { G_UNICODE_SCRIPT_HIRAGANA, HB_SCRIPT_HIRAGANA,  NC_("Script", "Hiragana") },
+  { G_UNICODE_SCRIPT_KANNADA, HB_SCRIPT_KANNADA,  NC_("Script", "Kannada") },
+  { G_UNICODE_SCRIPT_KATAKANA, HB_SCRIPT_KATAKANA,  NC_("Script", "Katakana") },
+  { G_UNICODE_SCRIPT_KHMER, HB_SCRIPT_KHMER,  NC_("Script", "Khmer") },
+  { G_UNICODE_SCRIPT_LAO, HB_SCRIPT_LAO,  NC_("Script", "Lao") },
+  { G_UNICODE_SCRIPT_LATIN, HB_SCRIPT_LATIN,  NC_("Script", "Latin") },
+  { G_UNICODE_SCRIPT_MALAYALAM, HB_SCRIPT_MALAYALAM,  NC_("Script", "Malayalam") },
+  { G_UNICODE_SCRIPT_MONGOLIAN, HB_SCRIPT_MONGOLIAN,  NC_("Script", "Mongolian") },
+  { G_UNICODE_SCRIPT_MYANMAR, HB_SCRIPT_MYANMAR,  NC_("Script", "Myanmar") },
+  { G_UNICODE_SCRIPT_OGHAM, HB_SCRIPT_OGHAM,  NC_("Script", "Ogham") },
+  { G_UNICODE_SCRIPT_OLD_ITALIC, HB_SCRIPT_OLD_ITALIC,  NC_("Script", "Old Italic") },
+  { G_UNICODE_SCRIPT_ORIYA, HB_SCRIPT_ORIYA,  NC_("Script", "Oriya") },
+  { G_UNICODE_SCRIPT_RUNIC, HB_SCRIPT_RUNIC,  NC_("Script", "Runic") },
+  { G_UNICODE_SCRIPT_SINHALA, HB_SCRIPT_SINHALA,  NC_("Script", "Sinhala") },
+  { G_UNICODE_SCRIPT_SYRIAC, HB_SCRIPT_SYRIAC,  NC_("Script", "Syriac") },
+  { G_UNICODE_SCRIPT_TAMIL, HB_SCRIPT_TAMIL,  NC_("Script", "Tamil") },
+  { G_UNICODE_SCRIPT_TELUGU, HB_SCRIPT_TELUGU,  NC_("Script", "Telugu") },
+  { G_UNICODE_SCRIPT_THAANA, HB_SCRIPT_THAANA,  NC_("Script", "Thaana") },
+  { G_UNICODE_SCRIPT_THAI, HB_SCRIPT_THAI,  NC_("Script", "Thai") },
+  { G_UNICODE_SCRIPT_TIBETAN, HB_SCRIPT_TIBETAN,  NC_("Script", "Tibetan") },
+  { G_UNICODE_SCRIPT_CANADIAN_ABORIGINAL, HB_SCRIPT_CANADIAN_ABORIGINAL,  NC_("Script", "Canadian Aboriginal") },
+  { G_UNICODE_SCRIPT_YI, HB_SCRIPT_YI,  NC_("Script", "Yi") },
+  { G_UNICODE_SCRIPT_TAGALOG, HB_SCRIPT_TAGALOG,  NC_("Script", "Tagalog") },
+  { G_UNICODE_SCRIPT_HANUNOO, HB_SCRIPT_HANUNOO,  NC_("Script", "Hanunoo") },
+  { G_UNICODE_SCRIPT_BUHID, HB_SCRIPT_BUHID,  NC_("Script", "Buhid") },
+  { G_UNICODE_SCRIPT_TAGBANWA, HB_SCRIPT_TAGBANWA,  NC_("Script", "Tagbanwa") },
+  { G_UNICODE_SCRIPT_BRAILLE, HB_SCRIPT_BRAILLE,  NC_("Script", "Braille") },
+  { G_UNICODE_SCRIPT_CYPRIOT, HB_SCRIPT_CYPRIOT,  NC_("Script", "Cypriot") },
+  { G_UNICODE_SCRIPT_LIMBU, HB_SCRIPT_LIMBU,  NC_("Script", "Limbu") },
+  { G_UNICODE_SCRIPT_OSMANYA, HB_SCRIPT_OSMANYA,  NC_("Script", "Osmanya") },
+  { G_UNICODE_SCRIPT_SHAVIAN, HB_SCRIPT_SHAVIAN,  NC_("Script", "Shavian") },
+  { G_UNICODE_SCRIPT_LINEAR_B, HB_SCRIPT_LINEAR_B,  NC_("Script", "Linear B") },
+  { G_UNICODE_SCRIPT_TAI_LE, HB_SCRIPT_TAI_LE,  NC_("Script", "Tai Le") },
+  { G_UNICODE_SCRIPT_UGARITIC, HB_SCRIPT_UGARITIC,  NC_("Script", "Ugaritic") },
+  { G_UNICODE_SCRIPT_NEW_TAI_LUE, HB_SCRIPT_NEW_TAI_LUE,  NC_("Script", "New Tai Lue") },
+  { G_UNICODE_SCRIPT_BUGINESE, HB_SCRIPT_BUGINESE,  NC_("Script", "Buginese") },
+  { G_UNICODE_SCRIPT_GLAGOLITIC, HB_SCRIPT_GLAGOLITIC,  NC_("Script", "Glagolitic") },
+  { G_UNICODE_SCRIPT_TIFINAGH, HB_SCRIPT_TIFINAGH,  NC_("Script", "Tifinagh") },
+  { G_UNICODE_SCRIPT_SYLOTI_NAGRI, HB_SCRIPT_SYLOTI_NAGRI,  NC_("Script", "Syloti Nagri") },
+  { G_UNICODE_SCRIPT_OLD_PERSIAN, HB_SCRIPT_OLD_PERSIAN,  NC_("Script", "Old Persian") },
+  { G_UNICODE_SCRIPT_KHAROSHTHI, HB_SCRIPT_KHAROSHTHI,  NC_("Script", "Kharoshthi") },
+  { G_UNICODE_SCRIPT_UNKNOWN, HB_SCRIPT_UNKNOWN,  NC_("Script", "Unknown") },
+  { G_UNICODE_SCRIPT_BALINESE, HB_SCRIPT_BALINESE,  NC_("Script", "Balinese") },
+  { G_UNICODE_SCRIPT_CUNEIFORM, HB_SCRIPT_CUNEIFORM,  NC_("Script", "Cuneiform") },
+  { G_UNICODE_SCRIPT_PHOENICIAN, HB_SCRIPT_PHOENICIAN,  NC_("Script", "Phoenician") },
+  { G_UNICODE_SCRIPT_PHAGS_PA, HB_SCRIPT_PHAGS_PA,  NC_("Script", "Phags-pa") },
+  { G_UNICODE_SCRIPT_NKO, HB_SCRIPT_NKO,  NC_("Script", "N'Ko") },
+  { G_UNICODE_SCRIPT_KAYAH_LI, HB_SCRIPT_KAYAH_LI,  NC_("Script", "Kayah Li") },
+  { G_UNICODE_SCRIPT_LEPCHA, HB_SCRIPT_LEPCHA,  NC_("Script", "Lepcha") },
+  { G_UNICODE_SCRIPT_REJANG, HB_SCRIPT_REJANG,  NC_("Script", "Rejang") },
+  { G_UNICODE_SCRIPT_SUNDANESE, HB_SCRIPT_SUNDANESE,  NC_("Script", "Sundanese") },
+  { G_UNICODE_SCRIPT_SAURASHTRA, HB_SCRIPT_SAURASHTRA,  NC_("Script", "Saurashtra") },
+  { G_UNICODE_SCRIPT_CHAM, HB_SCRIPT_CHAM,  NC_("Script", "Cham") },
+  { G_UNICODE_SCRIPT_OL_CHIKI, HB_SCRIPT_OL_CHIKI,  NC_("Script", "Ol Chiki") },
+  { G_UNICODE_SCRIPT_VAI, HB_SCRIPT_VAI,  NC_("Script", "Vai") },
+  { G_UNICODE_SCRIPT_CARIAN, HB_SCRIPT_CARIAN,  NC_("Script", "Carian") },
+  { G_UNICODE_SCRIPT_LYCIAN, HB_SCRIPT_LYCIAN,  NC_("Script", "Lycian") },
+  { G_UNICODE_SCRIPT_LYDIAN, HB_SCRIPT_LYDIAN,  NC_("Script", "Lydian") },
+  { G_UNICODE_SCRIPT_AVESTAN, HB_SCRIPT_AVESTAN,  NC_("Script", "Avestan") },
+  { G_UNICODE_SCRIPT_BAMUM, HB_SCRIPT_BAMUM,  NC_("Script", "Bamum") },
+  { G_UNICODE_SCRIPT_EGYPTIAN_HIEROGLYPHS, HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,  NC_("Script", "Egyptian Hieroglpyhs") },
+  { G_UNICODE_SCRIPT_IMPERIAL_ARAMAIC, HB_SCRIPT_IMPERIAL_ARAMAIC,  NC_("Script", "Imperial Aramaic") },
+  { G_UNICODE_SCRIPT_INSCRIPTIONAL_PAHLAVI, HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,  NC_("Script", "Inscriptional Pahlavi") },
+  { G_UNICODE_SCRIPT_INSCRIPTIONAL_PARTHIAN, HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,  NC_("Script", "Inscriptional Parthian") },
+  { G_UNICODE_SCRIPT_JAVANESE, HB_SCRIPT_JAVANESE,  NC_("Script", "Javanese") },
+  { G_UNICODE_SCRIPT_KAITHI, HB_SCRIPT_KAITHI,  NC_("Script", "Kaithi") },
+  { G_UNICODE_SCRIPT_LISU, HB_SCRIPT_LISU,  NC_("Script", "Lisu") },
+  { G_UNICODE_SCRIPT_MEETEI_MAYEK, HB_SCRIPT_MEETEI_MAYEK,  NC_("Script", "Meetei Mayek") },
+  { G_UNICODE_SCRIPT_OLD_SOUTH_ARABIAN, HB_SCRIPT_OLD_SOUTH_ARABIAN,  NC_("Script", "Old South Arabian") },
+  { G_UNICODE_SCRIPT_OLD_TURKIC, HB_SCRIPT_OLD_TURKIC,  NC_("Script", "Old Turkic") },
+  { G_UNICODE_SCRIPT_SAMARITAN, HB_SCRIPT_SAMARITAN,  NC_("Script", "Samaritan") },
+  { G_UNICODE_SCRIPT_TAI_THAM, HB_SCRIPT_TAI_THAM,  NC_("Script", "Tai Tham") },
+  { G_UNICODE_SCRIPT_TAI_VIET, HB_SCRIPT_TAI_VIET,  NC_("Script", "Tai Viet") },
+  { G_UNICODE_SCRIPT_BATAK, HB_SCRIPT_BATAK,  NC_("Script", "Batak") },
+  { G_UNICODE_SCRIPT_BRAHMI, HB_SCRIPT_BRAHMI,  NC_("Script", "Brahmi") },
+  { G_UNICODE_SCRIPT_MANDAIC, HB_SCRIPT_MANDAIC,  NC_("Script", "Mandaic") },
+  { G_UNICODE_SCRIPT_CHAKMA, HB_SCRIPT_CHAKMA,  NC_("Script", "Chakma") },
+  { G_UNICODE_SCRIPT_MEROITIC_CURSIVE, HB_SCRIPT_MEROITIC_CURSIVE,  NC_("Script", "Meroitic Cursive") },
+  { G_UNICODE_SCRIPT_MEROITIC_HIEROGLYPHS, HB_SCRIPT_MEROITIC_HIEROGLYPHS,  NC_("Script", "Meroitic Hieroglyphs") },
+  { G_UNICODE_SCRIPT_MIAO, HB_SCRIPT_MIAO,  NC_("Script", "Miao") },
+  { G_UNICODE_SCRIPT_SHARADA, HB_SCRIPT_SHARADA,  NC_("Script", "Sharada") },
+  { G_UNICODE_SCRIPT_SORA_SOMPENG, HB_SCRIPT_SORA_SOMPENG,  NC_("Script", "Sora Sompeng") },
+  { G_UNICODE_SCRIPT_TAKRI, HB_SCRIPT_TAKRI,  NC_("Script", "Takri") },
+  { G_UNICODE_SCRIPT_BASSA_VAH, HB_SCRIPT_BASSA_VAH,  NC_("Script", "Bassa") },
+  { G_UNICODE_SCRIPT_CAUCASIAN_ALBANIAN, HB_SCRIPT_CAUCASIAN_ALBANIAN,  NC_("Script", "Caucasian Albanian") },
+  { G_UNICODE_SCRIPT_DUPLOYAN, HB_SCRIPT_DUPLOYAN,  NC_("Script", "Duployan") },
+  { G_UNICODE_SCRIPT_ELBASAN, HB_SCRIPT_ELBASAN,  NC_("Script", "Elbasan") },
+  { G_UNICODE_SCRIPT_GRANTHA, HB_SCRIPT_GRANTHA,  NC_("Script", "Grantha") },
+  { G_UNICODE_SCRIPT_KHOJKI, HB_SCRIPT_KHOJKI,  NC_("Script", "Kjohki") },
+  { G_UNICODE_SCRIPT_KHUDAWADI, HB_SCRIPT_KHUDAWADI,  NC_("Script", "Khudawadi, Sindhi") },
+  { G_UNICODE_SCRIPT_LINEAR_A, HB_SCRIPT_LINEAR_A,  NC_("Script", "Linear A") },
+  { G_UNICODE_SCRIPT_MAHAJANI, HB_SCRIPT_MAHAJANI,  NC_("Script", "Mahajani") },
+  { G_UNICODE_SCRIPT_MANICHAEAN, HB_SCRIPT_MANICHAEAN,  NC_("Script", "Manichaean") },
+  { G_UNICODE_SCRIPT_MENDE_KIKAKUI, HB_SCRIPT_MENDE_KIKAKUI,  NC_("Script", "Mende Kikakui") },
+  { G_UNICODE_SCRIPT_MODI, HB_SCRIPT_MODI,  NC_("Script", "Modi") },
+  { G_UNICODE_SCRIPT_MRO, HB_SCRIPT_MRO,  NC_("Script", "Mro") },
+  { G_UNICODE_SCRIPT_NABATAEAN, HB_SCRIPT_NABATAEAN,  NC_("Script", "Nabataean") },
+  { G_UNICODE_SCRIPT_OLD_NORTH_ARABIAN, HB_SCRIPT_OLD_NORTH_ARABIAN,  NC_("Script", "Old North Arabian") },
+  { G_UNICODE_SCRIPT_OLD_PERMIC, HB_SCRIPT_OLD_PERMIC,  NC_("Script", "Old Permic") },
+  { G_UNICODE_SCRIPT_PAHAWH_HMONG, HB_SCRIPT_PAHAWH_HMONG,  NC_("Script", "Pahawh Hmong") },
+  { G_UNICODE_SCRIPT_PALMYRENE, HB_SCRIPT_PALMYRENE,  NC_("Script", "Palmyrene") },
+  { G_UNICODE_SCRIPT_PAU_CIN_HAU, HB_SCRIPT_PAU_CIN_HAU,  NC_("Script", "Pau Cin Hau") },
+  { G_UNICODE_SCRIPT_PSALTER_PAHLAVI, HB_SCRIPT_PSALTER_PAHLAVI,  NC_("Script", "Psalter Pahlavi") },
+  { G_UNICODE_SCRIPT_SIDDHAM, HB_SCRIPT_SIDDHAM,  NC_("Script", "Siddham") },
+  { G_UNICODE_SCRIPT_TIRHUTA, HB_SCRIPT_TIRHUTA,  NC_("Script", "Tirhuta") },
+  { G_UNICODE_SCRIPT_WARANG_CITI, HB_SCRIPT_WARANG_CITI,  NC_("Script", "Warang Citi") },
+  { G_UNICODE_SCRIPT_AHOM, HB_SCRIPT_AHOM,  NC_("Script", "Ahom") },
+  { G_UNICODE_SCRIPT_ANATOLIAN_HIEROGLYPHS, HB_SCRIPT_ANATOLIAN_HIEROGLYPHS,  NC_("Script", "Anatolian Hieroglyphs") },
+  { G_UNICODE_SCRIPT_HATRAN, HB_SCRIPT_HATRAN,  NC_("Script", "Hatran") },
+  { G_UNICODE_SCRIPT_MULTANI, HB_SCRIPT_MULTANI,  NC_("Script", "Multani") },
+  { G_UNICODE_SCRIPT_OLD_HUNGARIAN, HB_SCRIPT_OLD_HUNGARIAN,  NC_("Script", "Old Hungarian") },
+  { G_UNICODE_SCRIPT_SIGNWRITING, HB_SCRIPT_SIGNWRITING,  NC_("Script", "Signwriting") },
+  { G_UNICODE_SCRIPT_ADLAM, HB_SCRIPT_ADLAM,  NC_("Script", "Adlam") },
+  { G_UNICODE_SCRIPT_BHAIKSUKI, HB_SCRIPT_BHAIKSUKI,  NC_("Script", "Bhaiksuki") },
+  { G_UNICODE_SCRIPT_MARCHEN, HB_SCRIPT_MARCHEN,  NC_("Script", "Marchen") },
+  { G_UNICODE_SCRIPT_NEWA, HB_SCRIPT_NEWA,  NC_("Script", "Newa") },
+  { G_UNICODE_SCRIPT_OSAGE, HB_SCRIPT_OSAGE,  NC_("Script", "Osage") },
+  { G_UNICODE_SCRIPT_TANGUT, HB_SCRIPT_TANGUT,  NC_("Script", "Tangut") },
+  { G_UNICODE_SCRIPT_MASARAM_GONDI, HB_SCRIPT_INVALID,  NC_("Script", "Masaram Gondi") },
+  { G_UNICODE_SCRIPT_NUSHU, HB_SCRIPT_INVALID,  NC_("Script", "Nushu") },
+  { G_UNICODE_SCRIPT_SOYOMBO, HB_SCRIPT_INVALID,  NC_("Script", "Soyombo") },
+  { G_UNICODE_SCRIPT_ZANABAZAR_SQUARE, HB_SCRIPT_INVALID,  NC_("Script", "Zanabazar Square") },
+};
+
+const char *
+get_script_name (GUnicodeScript script)
+{
+  int i;
+
+  for (i = 0; i < G_N_ELEMENTS (scripts); i++)
+    {
+      if (scripts[i].script == script)
+        return g_dpgettext2 (GETTEXT_PACKAGE, "Script", scripts[i].name);
+    }
+
+  return NULL;
+}
+
+const char *
+get_script_name_for_tag (guint32 tag)
+{
+  int i;
+
+  for (i = 0; i < G_N_ELEMENTS (scripts); i++)
+    {
+      if (scripts[i].hb_script == hb_script_from_iso15924_tag (tag))
+        return g_dpgettext2 (GETTEXT_PACKAGE, "Script", scripts[i].name);
+    }
+
+  return NULL;
+}
@@ -0,0 +1,13 @@
+#ifndef SCRIPT_NAMES_H
+#define SCRIPT_NAMES_H
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+const char * get_script_name (GUnicodeScript script);
+const char * get_script_name_for_tag (guint32 tag);
+
+G_END_DECLS
+
+#endif
@@ -27,11 +27,14 @@ changed_cb (GtkEditable *editable)
 }

 static gboolean
-window_key_press_event_cb (GtkWidget    *widget,
-			   GdkEvent     *event,
-			   GtkSearchBar *bar)
+window_event_cb (GtkWidget    *widget,
+                 GdkEvent     *event,
+                 GtkSearchBar *bar)
 {
-  return gtk_search_bar_handle_event (bar, event);
+  if (gdk_event_get_event_type (event) == GDK_KEY_PRESS)
+    return gtk_search_bar_handle_event (bar, event);
+
+  return GDK_EVENT_PROPAGATE;
 }

 static void
@@ -99,8 +102,7 @@ do_search_entry2 (GtkWidget *do_widget)
      gtk_box_pack_start (GTK_BOX (vbox), searchbar);

      /* Hook the search bar to key presses */
-      g_signal_connect (window, "key-press-event",
-                        G_CALLBACK (window_key_press_event_cb), searchbar);
+      g_signal_connect (window, "event", G_CALLBACK (window_event_cb), searchbar);

      /* Help */
      label = gtk_label_new ("Start Typing to search");
@@ -1,104 +1,79 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-boxes">
    <property name="modal">1</property>
-    
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">12</property>
-
        <!-- Overview shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Overview</property>
            <property name="view">overview</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F1</property>
                <property name="title" translatable="yes">Help</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;n</property>
                <property name="title" translatable="yes">Create a new box</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;f</property>
                <property name="title" translatable="yes">Search</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;k</property>
                <property name="title" translatable="yes">Keyboard shortcuts</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;q</property>
                <property name="title" translatable="yes">Close Window/Quit Boxes</property>
              </object>
            </child>
          </object>
        </child>
-
        <!-- Wizard and Properties shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Box Creation and Properties</property>
            <property name="view">wizard</property>
-
            <!-- LTR -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Switch to the next page</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Switch to the previous page</property>
              </object>
            </child>
-
            <!-- RTL -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Switch to the next page</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Switch to the previous page</property>
@@ -106,62 +81,48 @@
            </child>
          </object>
        </child>
-
        <!-- Display shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Box Display</property>
            <property name="view">display</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Control_L+Alt_L</property>
                <property name="title" translatable="yes">Grab/Ungrab keyboard</property>
              </object>
            </child>
-
            <!-- LTR -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Back to overview</property>
              </object>
            </child>
-
            <!-- RTL -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Back to overview</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;q</property>
                <property name="title" translatable="yes">Close window/Quit Boxes</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F11</property>
                <property name="title" translatable="yes">Fullscreen/Restore from fullscreen</property>
              </object>
            </child>
          </object>
        </child>
-
      </object>
    </child>
  </object>
-
 </interface>
@@ -1,49 +1,41 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-builder">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">editor</property>
        <property name="title" translatable="yes">Editor Shortcuts</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Global Search</property>
                <property name="accelerator">&lt;ctrl&gt;period</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Preferences</property>
                <property name="accelerator">&lt;ctrl&gt;comma</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Command Bar</property>
                <property name="accelerator">&lt;ctrl&gt;Return</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Terminal</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Keyboard Shortcuts</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
              </object>
@@ -52,25 +44,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Panels</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle left panel</property>
                <property name="accelerator">F9</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle right panel</property>
                <property name="accelerator">&lt;shift&gt;F9</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle bottom panel</property>
                <property name="accelerator">&lt;ctrl&gt;F9</property>
              </object>
@@ -79,18 +67,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Touchpad gestures</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -99,46 +84,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Files</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;n</property>
                <property name="title" translatable="yes">Create new document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;o</property>
                <property name="title" translatable="yes">Open a document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;s</property>
                <property name="title" translatable="yes">Save the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;w</property>
                <property name="title" translatable="yes">Close the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Down</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Up</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -147,32 +125,27 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Find and replace</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;f</property>
                <property name="title" translatable="yes">Find</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;g</property>
                <property name="title" translatable="yes">Find the next match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;g</property>
                <property name="title" translatable="yes">Find the previous match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;k</property>
                <property name="title" translatable="yes">Clear highlight</property>
              </object>
@@ -181,25 +154,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Copy and Paste</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;c</property>
                <property name="title" translatable="yes">Copy selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;x</property>
                <property name="title" translatable="yes">Cut selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;v</property>
                <property name="title" translatable="yes">Paste text from clipboard</property>
              </object>
@@ -208,18 +177,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Undo and Redo</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;z</property>
                <property name="title" translatable="yes">Undo previous command</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;z</property>
                <property name="title" translatable="yes">Redo previous command</property>
              </object>
@@ -228,46 +194,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Editing</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;a</property>
                <property name="title" translatable="yes">Increment number at cursor</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;x</property>
                <property name="title" translatable="yes">Decrement number at cursor</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;j</property>
                <property name="title" translatable="yes">Join selected lines</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;space</property>
                <property name="title" translatable="yes">Show completion window</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Insert</property>
                <property name="title" translatable="yes">Toggle overwrite</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;i</property>
                <property name="title" translatable="yes">Reindent line</property>
              </object>
@@ -276,74 +235,63 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Navigation</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;n</property>
                <property name="title" translatable="yes">Move to next error in file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;p</property>
                <property name="title" translatable="yes">Move to previous error in file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Left</property>
                <property name="title" translatable="yes">Move to previous edit location</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Right</property>
                <property name="title" translatable="yes">Move to next edit location</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;period</property>
                <property name="title" translatable="yes">Jump to definition of symbol</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Up</property>
                <property name="title" translatable="yes">Move sectionport up within the file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Down</property>
                <property name="title" translatable="yes">Move sectionport down within the file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;End</property>
                <property name="title" translatable="yes">Move sectionport to end of file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Home</property>
                <property name="title" translatable="yes">Move sectionport to beginning of file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;percent</property>
                <property name="title" translatable="yes">Move to matching bracket</property>
              </object>
@@ -352,18 +300,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Selections</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;a</property>
                <property name="title" translatable="yes">Select all</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;backslash</property>
                <property name="title" translatable="yes">Unselect all</property>
              </object>
@@ -374,45 +319,38 @@
    </child>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="max-height">16</property>
        <property name="section-name">terminal</property>
        <property name="title" translatable="yes">Terminal Shortcuts</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Global Search</property>
                <property name="accelerator">&lt;ctrl&gt;period</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Preferences</property>
                <property name="accelerator">&lt;ctrl&gt;comma</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Command Bar</property>
                <property name="accelerator">&lt;ctrl&gt;Return</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Terminal</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Keyboard Shortcuts</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
              </object>
@@ -421,18 +359,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Copy and Paste</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;c</property>
                <property name="title" translatable="yes">Copy selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;v</property>
                <property name="title" translatable="yes">Paste text from clipboard</property>
              </object>
@@ -441,122 +376,98 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Switching</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;1...9</property>
                <property name="title" translatable="yes">Switch to n-th tab</property>
              </object>
            </child>
          </object>
        </child>
-
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
-            <property name="title" translatable="yes">'Special' combinations</property>
-
+            <property name="title" translatable="yes">&apos;Special&apos; combinations</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">t+t</property>
                <property name="title" translatable="yes">You want tea ?</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;ctrl&gt;</property>
                <property name="title" translatable="yes">Shift Control</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&amp;&lt;ctrl&gt;</property>
                <property name="title" translatable="yes">Control Control</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Control_L&amp;Control_R</property>
                <property name="title" translatable="yes">Left and right control</property>
              </object>
            </child>
-
          </object>
        </child>
-
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">All gestures</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-pinch</property>
                <property name="title" translatable="yes">A stock pinch gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-stretch</property>
                <property name="title" translatable="yes">A stock stretch gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-rotate-clockwise</property>
                <property name="title" translatable="yes">A stock rotation gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-rotate-counterclockwise</property>
                <property name="title" translatable="yes">A stock rotation gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-swipe-left</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-swipe-right</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
-
          </object>
        </child>
-
      </object>
    </child>
  </object>
-
 </interface>
@@ -1,42 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-clocks">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">10</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Page_Down</property>
                <property name="title" translatable="yes">Go to the next section</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Page_Up</property>
                <property name="title" translatable="yes">Go to the previous section</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Q</property>
                <property name="title" translatable="yes">Quit</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Right</property>
                <property name="direction">ltr</property>
                <property name="title" translatable="yes">Forward</property>
@@ -44,7 +37,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Left</property>
                <property name="direction">ltr</property>
                <property name="title" translatable="yes">Back</property>
@@ -52,7 +44,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Left</property>
                <property name="direction">rtl</property>
                <property name="title" translatable="yes">Forward</property>
@@ -60,7 +51,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Right</property>
                <property name="direction">rtl</property>
                <property name="title" translatable="yes">Back</property>
@@ -70,19 +60,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">world</property>
            <property name="title" translatable="yes">World Clocks</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Add a world clock</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Select world clocks</property>
              </object>
@@ -91,19 +78,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">alarm</property>
            <property name="title" translatable="yes">Alarm</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Add an alarm</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Select alarms</property>
              </object>
@@ -112,26 +96,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">stopwatch</property>
            <property name="title" translatable="yes">Stopwatch</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Return space</property>
                <property name="title" translatable="yes">Start / Stop / Continue</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">L</property>
                <property name="title" translatable="yes">Lap</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title" translatable="yes">Reset</property>
              </object>
@@ -140,19 +120,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">timer</property>
            <property name="title" translatable="yes">Timer</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Return space</property>
                <property name="title" translatable="yes">Start / Stop / Pause</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title" translatable="yes">Reset</property>
              </object>
@@ -162,5 +139,4 @@
      </object>
    </child>
  </object>
-
 </interface>
@@ -1,28 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-gedit">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">12</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Touchpad gestures</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -31,46 +26,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Documents</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Create new document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;O</property>
                <property name="title" translatable="yes">Open a document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Save the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;W</property>
                <property name="title" translatable="yes">Close the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Down</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Up</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -79,46 +67,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Find and Replace</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;F</property>
                <property name="title" translatable="yes">Find</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;G</property>
                <property name="title" translatable="yes">Find the next match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;G</property>
                <property name="title" translatable="yes">Find the previous match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;H</property>
                <property name="title" translatable="yes">Find and Replace</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;K</property>
                <property name="title" translatable="yes">Clear highlight</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;I</property>
                <property name="title" translatable="yes">Go to line</property>
              </object>
@@ -127,11 +108,9 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Tools</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;F7</property>
                <property name="title" translatable="yes">Check spelling</property>
              </object>
@@ -140,25 +119,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Miscellaneous</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F11</property>
                <property name="title" translatable="yes">Fullscreen on / off</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;P</property>
                <property name="title" translatable="yes">Print the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Insert</property>
                <property name="title" translatable="yes">Toggle insert / overwrite</property>
              </object>
@@ -168,5 +143,4 @@
      </object>
    </child>
  </object>
-
 </interface>
@@ -1,60 +1,51 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkWindow" id="window1">
    <property name="title" translatable="yes">Shortcuts</property>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="margin">50</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Builder</property>
            <signal name="clicked" handler="builder_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">GEdit</property>
            <signal name="clicked" handler="gedit_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Clocks - All</property>
            <signal name="clicked" handler="clocks_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Clocks - Stopwatch</property>
            <signal name="clicked" handler="clocks_shortcuts_stopwatch" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes</property>
            <signal name="clicked" handler="boxes_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes - Wizard</property>
            <signal name="clicked" handler="boxes_shortcuts_wizard" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes - Display</property>
            <signal name="clicked" handler="boxes_shortcuts_display" swapped="1" object="window1"/>
          </object>
@@ -0,0 +1,485 @@
+/* Sliding puzzle
+ *
+ * This demo demonstrates how to use gestures and paintables to create a
+ * small sliding puzzle game.
+ *
+ */
+
+#include <gtk/gtk.h>
+
+/* Include the header for the puzzle piece */
+#include "puzzlepiece.h"
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+static GtkWidget *frame = NULL;
+static GtkWidget *choices = NULL;
+static GtkWidget *size_spin = NULL;
+static GdkPaintable *puzzle = NULL;
+
+static gboolean solved = TRUE;
+static guint width = 3;
+static guint height = 3;
+static guint pos_x;
+static guint pos_y;
+
+static gboolean
+move_puzzle (GtkWidget *grid,
+             int        dx,
+             int        dy)
+{
+  GtkWidget *pos, *next;
+  GdkPaintable *piece;
+  guint next_x, next_y;
+
+  /* We don't move anything if the puzzle is solved */
+  if (solved)
+    return FALSE;
+
+  /* Return FALSE if we can't move to where the call 
+   * wants us to move.
+   */
+  if ((dx < 0 && pos_x < -dx) ||
+      dx + pos_x >= width ||
+      (dy < 0 && pos_y < -dy) ||
+      dy + pos_y >= height)
+    return FALSE;
+
+  /* Compute the new position */
+  next_x = pos_x + dx;
+  next_y = pos_y + dy;
+
+  /* Get the current and next image */
+  pos = gtk_grid_get_child_at (GTK_GRID (grid), pos_x, pos_y);
+  next = gtk_grid_get_child_at (GTK_GRID (grid), next_x, next_y);
+
+  /* Move the displayed piece. */
+  piece = gtk_picture_get_paintable (GTK_PICTURE (next));
+  gtk_picture_set_paintable (GTK_PICTURE (pos), piece);
+  gtk_picture_set_paintable (GTK_PICTURE (next), NULL);
+
+  /* Update the current position */
+  pos_x = next_x;
+  pos_y = next_y;
+
+  /* Return TRUE because we successfully moved the piece */
+  return TRUE;
+}
+
+static void
+shuffle_puzzle (GtkWidget *grid)
+{
+  guint i, n_steps;
+
+  /* Do this many random moves */
+  n_steps = width * height * 50;
+
+  for (i = 0; i < n_steps; i++)
+    {
+      /* Get a random number for the direction to move in */
+      switch (g_random_int_range (0, 4))
+        {
+        case 0:
+          /* left */
+          move_puzzle (grid, -1, 0);
+          break;
+
+        case 1:
+          /* up */
+          move_puzzle (grid, 0, -1);
+          break;
+
+        case 2:
+          /* right */
+          move_puzzle (grid, 1, 0);
+          break;
+
+        case 3:
+          /* down */
+          move_puzzle (grid, 0, 1);
+          break;
+
+        default:
+          g_assert_not_reached ();
+          continue;
+        }
+    }
+}
+
+static gboolean
+check_solved (GtkWidget *grid)
+{
+  GtkWidget *picture;
+  GdkPaintable *piece;
+  guint x, y;
+
+  /* Nothing to check if the puzzle is already solved */
+  if (solved)
+    return TRUE;
+
+  /* If the empty cell isn't in the bottom right,
+   * the puzzle is obviously not solved */
+  if (pos_x != width - 1 ||
+      pos_y != height - 1)
+    return FALSE;
+
+  /* Check that all pieces are in the right position */
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          picture = gtk_grid_get_child_at (GTK_GRID (grid), x, y);
+          piece = gtk_picture_get_paintable (GTK_PICTURE (picture));
+
+          /* empty cell */
+          if (piece == NULL)
+            continue;
+
+          if (gtk_puzzle_piece_get_x (GTK_PUZZLE_PIECE (piece)) != x ||
+              gtk_puzzle_piece_get_y (GTK_PUZZLE_PIECE (piece)) != y)
+            return FALSE;
+        }
+    }
+
+  /* We solved the puzzle!
+   */
+  solved = TRUE;
+
+  /* Fill the empty cell to show that we're done.
+   */
+  picture = gtk_grid_get_child_at (GTK_GRID (grid), 0, 0);
+  piece = gtk_picture_get_paintable (GTK_PICTURE (picture));
+
+  piece = gtk_puzzle_piece_new (gtk_puzzle_piece_get_puzzle (GTK_PUZZLE_PIECE (piece)),
+                                pos_x, pos_y,
+                                width, height);
+  picture = gtk_grid_get_child_at (GTK_GRID (grid), pos_x, pos_y);
+  gtk_picture_set_paintable (GTK_PICTURE (picture), piece);
+
+  return TRUE;
+}
+
+static gboolean
+puzzle_key_pressed (GtkEventControllerKey *controller,
+                    guint                  keyval,
+                    guint                  keycode,
+                    GdkModifierType        state,
+                    GtkWidget             *grid)
+{
+  int dx, dy;
+
+  dx = 0;
+  dy = 0;
+
+  switch (keyval)
+    {
+    case GDK_KEY_KP_Left:
+    case GDK_KEY_Left:
+      /* left */
+      dx = -1;
+      break;
+
+    case GDK_KEY_KP_Up:
+    case GDK_KEY_Up:
+      /* up */
+      dy = -1;
+      break;
+
+    case GDK_KEY_KP_Right:
+    case GDK_KEY_Right:
+      /* right */
+      dx = 1;
+      break;
+
+    case GDK_KEY_KP_Down:
+    case GDK_KEY_Down:
+      /* down */
+      dy = 1;
+      break;
+
+    default:
+      /* We return FALSE here because we didn't handle the key that was pressed */
+      return FALSE;
+    }
+
+  if (!move_puzzle (grid, dx, dy))
+    {
+      /* Make the error sound and then return TRUE.
+       * We handled this key, even though we didn't
+       * do anything to the puzzle.
+       */
+      gtk_widget_error_bell (grid);
+      return TRUE;
+    }
+
+  check_solved (grid);
+
+  return TRUE;
+}
+
+static void
+puzzle_button_pressed (GtkGestureMultiPress *gesture,
+                       int                   n_press,
+                       double                x,
+                       double                y,
+                       GtkWidget            *grid)
+{
+  GtkWidget *child;
+  int l, t, i;
+  int pos;
+
+  child = gtk_widget_pick (grid, x, y);
+
+  if (!child)
+    {
+      gtk_widget_error_bell (grid);
+      return;
+    }
+
+  gtk_container_child_get (GTK_CONTAINER (grid), child,
+                           "left-attach", &l,
+                           "top-attach", &t,
+                           NULL);
+
+  if (l == pos_x && t == pos_y)
+    {
+      gtk_widget_error_bell (grid);
+    }
+  else if (l == pos_x)
+    {
+      pos = pos_y;
+      for (i = t; i < pos; i++)
+        {
+          if (!move_puzzle (grid, 0, -1))
+            gtk_widget_error_bell (grid);
+        }
+      for (i = pos; i < t; i++)
+        {
+          if (!move_puzzle (grid, 0, 1))
+            gtk_widget_error_bell (grid);
+        }
+    }
+  else if (t == pos_y)
+    {
+      pos = pos_x;
+      for (i = l; i < pos; i++)
+        {
+          if (!move_puzzle (grid, -1, 0))
+            gtk_widget_error_bell (grid);
+        }
+      for (i = pos; i < l; i++)
+        {
+          if (!move_puzzle (grid, 1, 0))
+            gtk_widget_error_bell (grid);
+        }
+    }
+  else
+    {
+      gtk_widget_error_bell (grid);
+    }
+}
+
+static void
+start_puzzle (GdkPaintable *puzzle)
+{
+  GtkWidget *picture, *grid;
+  GtkEventController *controller;
+  guint x, y;
+
+  /* Remove the old grid (if there is one) */
+  grid = gtk_bin_get_child (GTK_BIN (frame));
+  if (grid)
+    gtk_container_remove (GTK_CONTAINER (frame), grid);
+
+  /* Create a new grid */
+  grid = gtk_grid_new ();
+  gtk_widget_set_can_focus (grid, TRUE);
+  gtk_container_add (GTK_CONTAINER (frame), grid);
+
+  /* Add a key event controller so people can use the arrow
+   * keys to move the puzzle */
+  controller = gtk_event_controller_key_new ();
+  g_signal_connect (controller, "key-pressed",
+                    G_CALLBACK (puzzle_key_pressed),
+                    grid);
+  gtk_widget_add_controller (GTK_WIDGET (grid), controller);
+
+  controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
+  g_signal_connect (controller, "pressed",
+                    G_CALLBACK (puzzle_button_pressed),
+                    grid);
+  gtk_widget_add_controller (GTK_WIDGET (grid), controller);
+
+  /* Make sure the cells have equal size */
+  gtk_grid_set_row_homogeneous (GTK_GRID (grid), TRUE);
+  gtk_grid_set_column_homogeneous (GTK_GRID (grid), TRUE);
+
+  /* Reset the variables */
+  solved = FALSE;
+  pos_x = width - 1;
+  pos_y = height - 1;
+
+  /* add a picture for every cell */
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          GdkPaintable *piece;
+
+          /* Don't paint anything for the lsiding part of the video */
+          if (x == pos_x && y == pos_y)
+            piece = NULL;
+          else
+            piece = gtk_puzzle_piece_new (puzzle,
+                                          x, y,
+                                          width, height);
+          picture = gtk_picture_new_for_paintable (piece);
+          gtk_picture_set_keep_aspect_ratio (GTK_PICTURE (picture), FALSE);
+          gtk_grid_attach (GTK_GRID (grid),
+                           picture,
+                           x, y,
+                           1, 1);
+        }
+    }
+
+  shuffle_puzzle (grid);
+}
+
+static void
+reshuffle (void)
+{
+  GtkWidget *grid;
+
+  grid = gtk_bin_get_child (GTK_BIN (frame));
+  if (solved)
+    start_puzzle (puzzle);
+  else
+    shuffle_puzzle (grid);
+  gtk_widget_grab_focus (grid);
+}
+
+static void
+reconfigure (void)
+{
+  GtkWidget *popover;
+  GtkWidget *grid;
+  GtkWidget *child;
+  GtkWidget *image;
+  GList *selected;
+
+  width = height = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (size_spin));
+
+  selected = gtk_flow_box_get_selected_children (GTK_FLOW_BOX (choices));
+  if (selected == NULL)
+    child = gtk_widget_get_first_child (choices);
+  else
+    {
+      child = selected->data;
+      g_list_free (selected);
+    }
+  image = gtk_bin_get_child (GTK_BIN (child));
+  puzzle = gtk_image_get_paintable (GTK_IMAGE (image));
+
+  start_puzzle (puzzle); 
+  popover = gtk_widget_get_ancestor (size_spin, GTK_TYPE_POPOVER);
+  gtk_popover_popdown (GTK_POPOVER (popover));
+  grid = gtk_bin_get_child (GTK_BIN (frame));
+  gtk_widget_grab_focus (grid);
+}
+
+static void
+add_choice (GtkWidget    *choices,
+            GdkPaintable *paintable)
+{
+  GtkWidget *icon;
+
+  icon = gtk_image_new_from_paintable (paintable);
+  gtk_image_set_icon_size (GTK_IMAGE (icon), GTK_ICON_SIZE_LARGE);
+
+  gtk_container_add (GTK_CONTAINER (choices), icon);
+}
+
+GtkWidget *
+do_sliding_puzzle (GtkWidget *do_widget)
+{
+  if (!window)
+    {
+      GtkWidget *header;
+      GtkWidget *restart;
+      GtkWidget *tweak;
+      GtkWidget *popover;
+      GtkWidget *tweaks;
+      GtkWidget *apply;
+      GtkWidget *label;
+      GtkWidget *sw;
+      GtkMediaStream *media;
+
+      puzzle = GDK_PAINTABLE (gdk_texture_new_from_resource ("/sliding_puzzle/portland-rose.jpg"));
+
+      tweaks = gtk_grid_new ();
+      gtk_grid_set_row_spacing (GTK_GRID (tweaks), 10);
+      gtk_grid_set_column_spacing (GTK_GRID (tweaks), 10);
+      g_object_set (tweaks, "margin", 10, NULL);
+
+      choices = gtk_flow_box_new ();
+      gtk_style_context_add_class (gtk_widget_get_style_context (choices), GTK_STYLE_CLASS_VIEW);
+      add_choice (choices, puzzle);
+      add_choice (choices, gtk_nuclear_animation_new ());
+      media = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+      gtk_media_stream_set_loop (media, TRUE);
+      gtk_media_stream_set_muted (media, TRUE);
+      gtk_media_stream_play (media);
+      add_choice (choices, GDK_PAINTABLE (media));
+      sw = gtk_scrolled_window_new (NULL, NULL);
+      gtk_container_add (GTK_CONTAINER (sw), choices);
+      gtk_grid_attach (GTK_GRID (tweaks), sw, 0, 0, 2, 1);
+
+      label = gtk_label_new ("Size");
+      gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+      gtk_grid_attach (GTK_GRID (tweaks), label, 0, 1, 1, 1);
+      size_spin = gtk_spin_button_new_with_range (2, 10, 1);
+      gtk_spin_button_set_value (GTK_SPIN_BUTTON (size_spin), width);
+      gtk_grid_attach (GTK_GRID (tweaks), size_spin, 1, 1, 1, 1);
+
+      apply = gtk_button_new_with_label ("Apply");
+      gtk_widget_set_halign (apply, GTK_ALIGN_END);
+      gtk_grid_attach (GTK_GRID (tweaks), apply, 1, 2, 1, 1);
+      g_signal_connect (apply, "clicked", G_CALLBACK (reconfigure), NULL);
+
+      popover = gtk_popover_new (NULL);
+      gtk_popover_set_modal (GTK_POPOVER (popover), TRUE);
+      gtk_container_add (GTK_CONTAINER (popover), tweaks);
+
+      tweak = gtk_menu_button_new ();
+      gtk_menu_button_set_popover (GTK_MENU_BUTTON (tweak), popover);
+      gtk_button_set_icon_name (GTK_BUTTON (tweak), "emblem-system-symbolic");
+
+      restart = gtk_button_new_from_icon_name ("view-refresh-symbolic");
+      g_signal_connect (restart, "clicked", G_CALLBACK (reshuffle), NULL);
+
+      header = gtk_header_bar_new ();
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), restart);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), tweak);
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Sliding Puzzle");
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+      gtk_window_set_default_size (GTK_WINDOW (window), 400, 300);
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      frame = gtk_aspect_frame_new (NULL, 0.5, 0.5, (float) gdk_paintable_get_intrinsic_aspect_ratio (puzzle), FALSE);
+      gtk_container_add (GTK_CONTAINER (window), frame);
+
+      start_puzzle (puzzle);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -33,14 +33,14 @@ hex_spin_output (GtkSpinButton *spin_button)
 {
  GtkAdjustment *adjustment;
  gchar *buf;
-  gint val;
+  gdouble val;

  adjustment = gtk_spin_button_get_adjustment (spin_button);
-  val = (gint) gtk_adjustment_get_value (adjustment);
+  val = gtk_adjustment_get_value (adjustment);
  if (fabs (val) < 1e-5)
    buf = g_strdup ("0x00");
  else
-    buf = g_strdup_printf ("0x%.2X", val);
+    buf = g_strdup_printf ("0x%.2X", (gint) val);
  if (strcmp (buf, gtk_spin_button_get_text (spin_button)))
    gtk_spin_button_set_text (spin_button, buf);
  g_free (buf);
@@ -3,189 +3,176 @@
  <object class="GtkAdjustment" id="basic_adjustment">
    <property name="lower">-10000</property>
    <property name="upper">10000</property>
-    <property name="step_increment">0.5</property>
-    <property name="page_increment">100</property>
+    <property name="step-increment">0.5</property>
+    <property name="page-increment">100</property>
  </object>
  <object class="GtkAdjustment" id="hex_adjustment">
    <property name="upper">255</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">16</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">16</property>
  </object>
  <object class="GtkAdjustment" id="time_adjustment">
    <property name="upper">1410</property>
-    <property name="step_increment">30</property>
-    <property name="page_increment">60</property>
+    <property name="step-increment">30</property>
+    <property name="page-increment">60</property>
  </object>
  <object class="GtkAdjustment" id="month_adjustment">
    <property name="lower">1</property>
    <property name="upper">12</property>
    <property name="value">1</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">5</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">5</property>
  </object>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">Spin Button</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <property name="margin">20</property>
        <property name="row-spacing">10</property>
        <property name="column-spacing">10</property>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Numeric</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">basic_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">basic_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="basic_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
            <property name="adjustment">basic_adjustment</property>
-            <property name="climb_rate">1</property>
+            <property name="climb-rate">1</property>
            <property name="digits">2</property>
            <property name="numeric">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="basic_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Hexadecimal</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">hex_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">hex_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="hex_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">4</property>
+            <property name="width-chars">4</property>
            <property name="adjustment">hex_adjustment</property>
            <signal name="input" handler="hex_spin_input"/>
            <signal name="output" handler="hex_spin_output"/>
            <property name="wrap">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="hex_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Time</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">time_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">time_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="time_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
            <property name="adjustment">time_adjustment</property>
            <signal name="input" handler="time_spin_input"/>
            <signal name="output" handler="time_spin_output"/>
            <property name="wrap">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="time_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Month</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">month_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">month_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="month_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">9</property>
+            <property name="width-chars">9</property>
            <signal name="input" handler="month_spin_input"/>
            <signal name="output" handler="month_spin_output"/>
            <property name="adjustment">month_adjustment</property>
            <property name="wrap">1</property>
-            <property name="update_policy">if-valid</property>
+            <property name="update-policy">if-valid</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="month_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
      </object>
@@ -5,26 +5,22 @@
    <property name="title" translatable="yes">Stack</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <child>
          <object class="GtkStackSwitcher">
-            <property name="visible">1</property>
            <property name="stack">stack</property>
            <property name="halign">center</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="margin-top">20</property>
                <property name="margin-bottom">20</property>
                <property name="icon-name">gtk3-demo</property>
@@ -37,9 +33,7 @@
            <child>
              <object class="GtkCheckButton">
                <property name="label" translatable="yes">Page 2</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="draw_indicator">1</property>
+                <property name="can-focus">1</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
              </object>
@@ -50,7 +44,6 @@
            </child>
            <child>
              <object class="GtkSpinner">
-                <property name="visible">1</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
                <property name="active">1</property>
@@ -62,8 +55,8 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
      </object>
@@ -5,7 +5,6 @@
    <property name="orientation">vertical</property>
    <child>
      <object class="GtkToolbar">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
        <property name="show-arrow">0</property>
        <style>
@@ -13,11 +12,10 @@
        </style>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -25,11 +23,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -38,12 +35,11 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -51,11 +47,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Raised</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <style>
              <class name="raised"/>
            </style>
@@ -66,11 +61,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Raised Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <property name="active">1</property>
            <style>
              <class name="raised"/>
@@ -82,12 +76,11 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find</property>
-            <property name="is_important">1</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find</property>
+            <property name="is-important">1</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -96,12 +89,10 @@
        </child>
        <child>
          <object class="GtkToolItem">
-            <property name="visible">1</property>
            <child>
              <object class="GtkEntry" id="entry1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="invisible_char">•</property>
+                <property name="can-focus">1</property>
+                <property name="invisible-char">•</property>
                <property name="placeholder-text" translatable="yes">Search...</property>
                <property name="secondary-icon-name">edit-find-symbolic</property>
              </object>
@@ -110,11 +101,10 @@
        </child>
        <child>
          <object class="GtkToolItem">
-            <property name="visible">1</property>
            <child>
              <object class="GtkSwitch" id="switch1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
+                <property name="tooltip_text">Switch it</property>
              </object>
            </child>
          </object>
@@ -123,7 +113,6 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="valign">center</property>
        <property name="halign">center</property>
        <style>
@@ -132,17 +121,15 @@
        <child>
          <object class="GtkButton">
            <property name="label" translatable="yes">Hi, I am a button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="label" translatable="yes">And I'm another button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="label" translatable="yes">And I&apos;m another button</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
          <packing>
            <property name="position">1</property>
@@ -151,9 +138,8 @@
        <child>
          <object class="GtkButton">
            <property name="label" translatable="yes">This is a button party!</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
          <packing>
            <property name="position">2</property>
@@ -163,19 +149,16 @@
    </child>
    <child>
      <object class="GtkToolbar">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
-        <property name="icon_size">1</property>
        <property name="toolbar-style">icons</property>
        <style>
          <class name="inline-toolbar"/>
        </style>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -183,10 +166,9 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -195,8 +177,8 @@
        <child>
          <object class="GtkToggleToolButton">
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -205,10 +187,9 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -217,11 +198,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -229,11 +209,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">go-up-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">go-up-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -244,12 +223,9 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="spacing">10</property>
-        <property name="orientation">horizontal</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Plain</property>
            <property name="halign">end</property>
            <property name="hexpand">1</property>
@@ -258,7 +234,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Destructive</property>
            <style>
              <class name="destructive-action"/>
@@ -267,7 +242,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Suggested</property>
            <style>
              <class name="suggested-action"/>
@@ -1,795 +0,0 @@
-/* Tool Palette
- *
- * A tool palette widget shows groups of toolbar items as a grid of icons
- * or a list of names.
- */
-
-#include <string.h>
-#include <gtk/gtk.h>
-
-static GtkWidget *window = NULL;
-
-static void load_icon_items (GtkToolPalette *palette);
-static void load_toggle_items (GtkToolPalette *palette);
-static void load_special_items (GtkToolPalette *palette);
-
-typedef struct _CanvasItem CanvasItem;
-
-struct _CanvasItem
-{
-  GdkPixbuf *pixbuf;
-  gdouble x, y;
-};
-
-static gboolean drag_data_requested_for_drop = FALSE;
-static CanvasItem *drop_item = NULL;
-static GList *canvas_items = NULL;
-
-/********************************/
-/* ====== Canvas drawing ====== */
-/********************************/
-
-static CanvasItem*
-canvas_item_new (GtkWidget     *widget,
-                 GtkToolButton *button,
-                 gdouble        x,
-                 gdouble        y)
-{
-  CanvasItem *item = NULL;
-  const gchar *icon_name;
-  GdkPixbuf *pixbuf;
-  GtkIconTheme *icon_theme;
-
-  icon_name = gtk_tool_button_get_icon_name (button);
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (widget));
-  pixbuf = gtk_icon_theme_load_icon (icon_theme,
-                                     icon_name,
-                                     48,
-                                     GTK_ICON_LOOKUP_GENERIC_FALLBACK,
-                                     NULL);
-
-  if (pixbuf)
-    {
-      item = g_slice_new0 (CanvasItem);
-      item->pixbuf = pixbuf;
-      item->x = x;
-      item->y = y;
-    }
-
-  return item;
-}
-
-static void
-canvas_item_free (CanvasItem *item)
-{
-  g_object_unref (item->pixbuf);
-  g_slice_free (CanvasItem, item);
-}
-
-static void
-canvas_item_draw (const CanvasItem *item,
-                  cairo_t          *cr,
-                  gboolean          preview)
-{
-  gdouble cx = gdk_pixbuf_get_width (item->pixbuf);
-  gdouble cy = gdk_pixbuf_get_height (item->pixbuf);
-
-  gdk_cairo_set_source_pixbuf (cr,
-                               item->pixbuf,
-                               item->x - cx * 0.5,
-                               item->y - cy * 0.5);
-
-  if (preview)
-    cairo_paint_with_alpha (cr, 0.6);
-  else
-    cairo_paint (cr);
-}
-
-static gboolean
-canvas_draw (GtkWidget *widget,
-             cairo_t   *cr)
-{
-  GList *iter;
-
-  cairo_set_source_rgb (cr, 1, 1, 1);
-  cairo_paint (cr);
-
-  for (iter = canvas_items; iter; iter = iter->next)
-    canvas_item_draw (iter->data, cr, FALSE);
-
-  if (drop_item)
-    canvas_item_draw (drop_item, cr, TRUE);
-
-  return TRUE;
-}
-
-/*****************************/
-/* ====== Palette DnD ====== */
-/*****************************/
-
-static void
-palette_drop_item (GtkToolItem      *drag_item,
-                   GtkToolItemGroup *drop_group,
-                   gint              x,
-                   gint              y)
-{
-  GtkWidget *drag_group = gtk_widget_get_parent (GTK_WIDGET (drag_item));
-  GtkToolItem *drop_item = gtk_tool_item_group_get_drop_item (drop_group, x, y);
-  gint drop_position = -1;
-
-  if (drop_item)
-    drop_position = gtk_tool_item_group_get_item_position (GTK_TOOL_ITEM_GROUP (drop_group), drop_item);
-
-  if (GTK_TOOL_ITEM_GROUP (drag_group) != drop_group)
-    {
-      gboolean homogeneous, expand, fill, new_row;
-
-      g_object_ref (drag_item);
-      gtk_container_child_get (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item),
-                               "homogeneous", &homogeneous,
-                               "expand", &expand,
-                               "fill", &fill,
-                               "new-row", &new_row,
-                               NULL);
-      gtk_container_remove (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item));
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (drop_group),
-                                  drag_item, drop_position);
-      gtk_container_child_set (GTK_CONTAINER (drop_group), GTK_WIDGET (drag_item),
-                               "homogeneous", homogeneous,
-                               "expand", expand,
-                               "fill", fill,
-                               "new-row", new_row,
-                               NULL);
-      g_object_unref (drag_item);
-    }
-  else
-    gtk_tool_item_group_set_item_position (GTK_TOOL_ITEM_GROUP (drop_group),
-                                           drag_item, drop_position);
-}
-
-static void
-palette_drop_group (GtkToolPalette   *palette,
-                    GtkToolItemGroup *drag_group,
-                    GtkToolItemGroup *drop_group)
-{
-  gint drop_position = -1;
-
-  if (drop_group)
-    drop_position = gtk_tool_palette_get_group_position (palette, drop_group);
-
-  gtk_tool_palette_set_group_position (palette, drag_group, drop_position);
-}
-
-static void
-palette_drag_data_received (GtkWidget        *widget,
-                            GdkDragContext   *context,
-                            gint              x,
-                            gint              y,
-                            GtkSelectionData *selection,
-                            guint             time,
-                            gpointer          data)
-{
-  GtkAllocation     allocation;
-  GtkToolItemGroup *drop_group = NULL;
-  GtkWidget        *drag_palette = gtk_drag_get_source_widget (context);
-  GtkWidget        *drag_item = NULL;
-
-  while (drag_palette && !GTK_IS_TOOL_PALETTE (drag_palette))
-    drag_palette = gtk_widget_get_parent (drag_palette);
-
-  if (drag_palette)
-    {
-      drag_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (drag_palette),
-                                                  selection);
-      drop_group = gtk_tool_palette_get_drop_group (GTK_TOOL_PALETTE (widget),
-                                                    x, y);
-    }
-
-  if (GTK_IS_TOOL_ITEM_GROUP (drag_item))
-    palette_drop_group (GTK_TOOL_PALETTE (drag_palette),
-                        GTK_TOOL_ITEM_GROUP (drag_item),
-                        drop_group);
-  else if (GTK_IS_TOOL_ITEM (drag_item) && drop_group)
-    {
-      gtk_widget_get_allocation (GTK_WIDGET (drop_group), &allocation);
-      palette_drop_item (GTK_TOOL_ITEM (drag_item),
-                         drop_group,
-                         x - allocation.x,
-                         y - allocation.y);
-    }
-}
-
-/********************************/
-/* ====== Passive Canvas ====== */
-/********************************/
-
-static void
-passive_canvas_drag_data_received (GtkWidget        *widget,
-                                   GdkDragContext   *context,
-                                   gint              x,
-                                   gint              y,
-                                   GtkSelectionData *selection,
-                                   guint             time,
-                                   gpointer          data)
-{
-  /* find the tool button, which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  CanvasItem *canvas_item = NULL;
-  GtkWidget *tool_item = NULL;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  g_assert (NULL == drop_item);
-
-  /* append a new canvas item when a tool button was found */
-
-  if (GTK_IS_TOOL_ITEM (tool_item))
-    canvas_item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  if (canvas_item)
-    {
-      canvas_items = g_list_append (canvas_items, canvas_item);
-      gtk_widget_queue_draw (widget);
-    }
-}
-
-/************************************/
-/* ====== Interactive Canvas ====== */
-/************************************/
-
-static gboolean
-interactive_canvas_drag_motion (GtkWidget      *widget,
-                                GdkDragContext *context,
-                                gint            x,
-                                gint            y,
-                                guint           time,
-                                gpointer        data)
-{
-  if (drop_item)
-    {
-      /* already have a drop indicator - just update position */
-
-      drop_item->x = x;
-      drop_item->y = y;
-
-      gtk_widget_queue_draw (widget);
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-  else
-    {
-      /* request DnD data for creating a drop indicator */
-
-      GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-      if (!target)
-        return FALSE;
-
-      drag_data_requested_for_drop = FALSE;
-      gtk_drag_get_data (widget, context, target, time);
-    }
-
-  return TRUE;
-}
-
-static void
-interactive_canvas_drag_data_received (GtkWidget        *widget,
-                                       GdkDragContext   *context,
-                                       gint              x,
-                                       gint              y,
-                                       GtkSelectionData *selection,
-                                       guint             time,
-                                       gpointer          data)
-
-{
-  /* find the tool button which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  GtkWidget *tool_item = NULL;
-  CanvasItem *item;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  /* create a canvas item when a tool button was found */
-
-  g_assert (NULL == drop_item);
-
-  if (!GTK_IS_TOOL_ITEM (tool_item))
-    return;
-
-  if (drop_item)
-    {
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-    }
-
-  item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  /* Either create a new item or just create a preview item, 
-     depending on why the drag data was requested. */
-  if(drag_data_requested_for_drop)
-    {
-      canvas_items = g_list_append (canvas_items, item);
-      drop_item = NULL;
-
-      gtk_drag_finish (context, TRUE, time);
-    } else
-    {
-      drop_item = item;
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-
-  gtk_widget_queue_draw (widget);
-}
-
-static gboolean
-interactive_canvas_drag_drop (GtkWidget      *widget,
-                              GdkDragContext *context,
-                              gint            x,
-                              gint            y,
-                              guint           time,
-                              gpointer        data)
-{
-  GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-  if (!target)
-    return FALSE;
-
-  drag_data_requested_for_drop = TRUE;
-  gtk_drag_get_data (widget, context, target, time);
-
-  return FALSE;
-}
-
-static void
-interactive_canvas_drag_leave (gpointer data)
-{
-  if (drop_item)
-    {
-      GtkWidget *widget = GTK_WIDGET (data);
-
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-
-      if (widget)
-        gtk_widget_queue_draw (widget);
-    }
-}
-
-static void
-on_combo_orientation_changed (GtkComboBox *combo_box,
-                              gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkScrolledWindow *sw;
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  sw = GTK_SCROLLED_WINDOW (gtk_widget_get_parent (GTK_WIDGET (palette)));
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  gtk_orientable_set_orientation (GTK_ORIENTABLE (palette), val);
-
-  if (val == GTK_ORIENTATION_HORIZONTAL)
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
-  else
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-}
-
-static void
-on_combo_style_changed (GtkComboBox *combo_box,
-                        gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  if (val == -1)
-    gtk_tool_palette_unset_style (palette);
-  else
-    gtk_tool_palette_set_style (palette, val);
-}
-
-GtkWidget *
-do_toolpalette (GtkWidget *do_widget)
-{
-  GtkWidget *box = NULL;
-  GtkWidget *hbox = NULL;
-  GtkWidget *combo_orientation = NULL;
-  GtkListStore *orientation_model = NULL;
-  GtkWidget *combo_style = NULL;
-  GtkListStore *style_model = NULL;
-  GtkCellRenderer *cell_renderer = NULL;
-  GtkTreeIter iter;
-  GtkWidget *palette = NULL;
-  GtkWidget *palette_scroller = NULL;
-  GtkWidget *notebook = NULL;
-  GtkWidget *contents = NULL;
-  GtkWidget *contents_scroller = NULL;
-
-  if (!window)
-    {
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Tool Palette");
-      gtk_window_set_default_size (GTK_WINDOW (window), 200, 600);
-
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      /* Add widgets to control the ToolPalette appearance: */
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
-      g_object_set (box, "margin", 6, NULL);
-      gtk_container_add (GTK_CONTAINER (window), box);
-
-      /* Orientation combo box: */
-      orientation_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Horizontal",
-                          1, GTK_ORIENTATION_HORIZONTAL,
-                          -1);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Vertical",
-                          1, GTK_ORIENTATION_VERTICAL,
-                          -1);
-
-      combo_orientation =
-        gtk_combo_box_new_with_model (GTK_TREE_MODEL (orientation_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_orientation),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_orientation),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_orientation), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_orientation);
-
-      /* Style combo box: */
-      style_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Text",
-                          1, GTK_TOOLBAR_TEXT,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both",
-                          1, GTK_TOOLBAR_BOTH,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both: Horizontal",
-                          1, GTK_TOOLBAR_BOTH_HORIZ,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Icons",
-                          1, GTK_TOOLBAR_ICONS,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Default",
-                          1, -1,  /* A custom meaning for this demo. */
-                          -1);
-      combo_style = gtk_combo_box_new_with_model (GTK_TREE_MODEL (style_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_style),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_style),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_style), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_style);
-
-      /* Add hbox */
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
-      gtk_box_pack_start (GTK_BOX (box), hbox);
-
-      /* Add and fill the ToolPalette: */
-      palette = gtk_tool_palette_new ();
-
-      load_icon_items (GTK_TOOL_PALETTE (palette));
-      load_toggle_items (GTK_TOOL_PALETTE (palette));
-      load_special_items (GTK_TOOL_PALETTE (palette));
-
-      palette_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_widget_set_vexpand (palette_scroller, TRUE);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (palette_scroller),
-                                      GTK_POLICY_NEVER,
-                                      GTK_POLICY_AUTOMATIC);
-      g_object_set (palette_scroller, "margin", 6, NULL);
-      gtk_widget_set_hexpand (palette_scroller, TRUE);
-
-      gtk_container_add (GTK_CONTAINER (palette_scroller), palette);
-      gtk_container_add (GTK_CONTAINER (hbox), palette_scroller);
-
-      /* Connect signals: */
-      g_signal_connect (combo_orientation, "changed",
-                        G_CALLBACK (on_combo_orientation_changed), palette);
-      g_signal_connect (combo_style, "changed",
-                        G_CALLBACK (on_combo_style_changed), palette);
-
-      /* Keep the widgets in sync: */
-      on_combo_orientation_changed (GTK_COMBO_BOX (combo_orientation), palette);
-
-      /* ===== notebook ===== */
-
-      notebook = gtk_notebook_new ();
-      g_object_set (notebook, "margin", 6, NULL);
-      gtk_box_pack_end (GTK_BOX(hbox), notebook);
-
-      /* ===== DnD for tool items ===== */
-
-      g_signal_connect (palette, "drag-data-received",
-                        G_CALLBACK (palette_drag_data_received), NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      palette,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS |
-                                      GTK_TOOL_PALETTE_DRAG_GROUPS,
-                                      GDK_ACTION_MOVE);
-
-      /* ===== passive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-data-received", passive_canvas_drag_data_received, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
-                                contents_scroller,
-                                gtk_label_new ("Passive DnD Mode"));
-      g_object_set (contents_scroller, "margin", 6, NULL);
-
-      /* ===== interactive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-motion", interactive_canvas_drag_motion, NULL,
-                        "drag-data-received", interactive_canvas_drag_data_received, NULL,
-                        "drag-leave", interactive_canvas_drag_leave, contents,
-                        "drag-drop", interactive_canvas_drag_drop, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_HIGHLIGHT,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), contents_scroller,
-                                gtk_label_new ("Interactive DnD Mode"));
-    }
-
-  if (!gtk_widget_get_visible (window))
-    {
-      gtk_widget_show (window);
-    }
-  else
-    {
-      gtk_widget_destroy (window);
-      window = NULL;
-    }
-
-  return window;
-}
-
-
-static void
-load_icon_items (GtkToolPalette *palette)
-{
-  GList *contexts;
-  GList *l;
-  GtkIconTheme *icon_theme;
-
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (palette)));
-
-  contexts = gtk_icon_theme_list_contexts (icon_theme);
-  for (l = contexts; l; l = l->next)
-    {
-      gchar *context = l->data;
-      GList *icon_names;
-      GList *ll;
-      const guint max_icons = 10;
-      guint icons_count = 0;
-
-      GtkWidget *group = gtk_tool_item_group_new (context);
-      gtk_container_add (GTK_CONTAINER (palette), group);
-
-      if (g_strcmp0 (context, "Animations") == 0)
-        continue;
-
-      g_message ("Got context '%s'", context);
-      icon_names = gtk_icon_theme_list_icons (icon_theme, context);
-      icon_names = g_list_sort (icon_names, (GCompareFunc) strcmp);
-
-      for (ll = icon_names; ll; ll = ll->next)
-        {
-          GtkToolItem *item;
-          gchar *id = ll->data;
-
-          if (g_str_equal (id, "emblem-desktop"))
-            continue;
-
-          if (g_str_has_suffix (id, "-symbolic"))
-            continue;
-
-          g_message ("Got id '%s'", id);
-
-          item = gtk_tool_button_new (NULL, NULL);
-          gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), id);
-          gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (item), id);
-          gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-
-          /* Prevent us having an insane number of icons: */
-          ++icons_count;
-          if(icons_count >= max_icons)
-            break;
-        }
-
-      g_list_free_full (icon_names, g_free);
-    }
-
-  g_list_free_full (contexts, g_free);
-}
-
-static void
-load_toggle_items (GtkToolPalette *palette)
-{
-  GSList *toggle_group = NULL;
-  GtkToolItem *item;
-  GtkWidget *group;
-  char *label;
-  int i;
-
-  group = gtk_tool_item_group_new ("Radio Item");
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  for (i = 1; i <= 10; ++i)
-    {
-      label = g_strdup_printf ("#%d", i);
-      item = gtk_radio_tool_button_new (toggle_group);
-      gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), label);
-      g_free (label);
-
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-      toggle_group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (item));
-    }
-}
-
-static GtkToolItem *
-create_entry_item (const char *text)
-{
-  GtkToolItem *item;
-  GtkWidget *entry;
-
-  entry = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (entry), text);
-  gtk_entry_set_width_chars (GTK_ENTRY (entry), 5);
-
-  item = gtk_tool_item_new ();
-  gtk_container_add (GTK_CONTAINER (item), entry);
-
-  return item;
-}
-
-static void
-load_special_items (GtkToolPalette *palette)
-{
-  GtkToolItem *item;
-  GtkWidget *group;
-  GtkWidget *label_button;
-
-  group = gtk_tool_item_group_new (NULL);
-  label_button = gtk_button_new_with_label ("Advanced Features");
-  gtk_widget_show (label_button);
-  gtk_tool_item_group_set_label_widget (GTK_TOOL_ITEM_GROUP (group),
-                                        label_button);
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  item = create_entry_item ("homogeneous=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, fill=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "fill", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, new-row=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "new-row", TRUE, NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-up");
-  gtk_tool_item_set_tooltip_text (item, "Show on vertical palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_horizontal (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-next");
-  gtk_tool_item_set_tooltip_text (item, "Show on horizontal palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_vertical (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "edit-delete");
-  gtk_tool_item_set_tooltip_text (item, "Do not show at all");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_widget_hide (GTK_WIDGET (item));
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "view-fullscreen");
-  gtk_tool_item_set_tooltip_text (item, "Expanded this item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE,
-                           "expand", TRUE,
-                           NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "help-browser");
-  gtk_tool_item_set_tooltip_text (item, "A regular item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-}
@@ -0,0 +1,96 @@
+/* Video Player
+ *
+ * This is a simple video player using just GTK widgets.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window = NULL;
+
+static void
+open_dialog_response_cb (GtkWidget *dialog,
+                         int        response,
+                         GtkWidget *video)
+{
+  gtk_widget_hide (dialog);
+
+  if (response == GTK_RESPONSE_ACCEPT)
+    {
+      GFile *file;
+
+      file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
+      gtk_video_set_file (GTK_VIDEO (video), file);
+      g_object_unref (file);
+    }
+
+  gtk_widget_destroy (dialog);
+}
+
+static void
+open_clicked_cb (GtkWidget *button,
+                 GtkWidget *video)
+{
+  GtkWidget *dialog;
+
+  dialog = gtk_file_chooser_dialog_new ("Select a video",
+                                        GTK_WINDOW (gtk_widget_get_toplevel (button)),
+                                        GTK_FILE_CHOOSER_ACTION_OPEN,
+                                        "_Cancel", GTK_RESPONSE_CANCEL,
+                                        "_Open", GTK_RESPONSE_ACCEPT,
+                                        NULL);
+  gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
+  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
+  g_signal_connect (dialog, "response", G_CALLBACK (open_dialog_response_cb), video);
+  gtk_widget_show (dialog);
+}
+
+static void
+fullscreen_clicked_cb (GtkWidget *button,
+                       gpointer   unused)
+{
+  GtkWidget *window = gtk_widget_get_toplevel (button);
+
+  gtk_window_fullscreen (GTK_WINDOW (window));
+}
+
+GtkWidget *
+do_video_player (GtkWidget *do_widget)
+{
+  GtkWidget *title;
+  GtkWidget *video;
+  GtkWidget *open_button;
+  GtkWidget *fullscreen_button;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Video Player");
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      video = gtk_video_new ();
+      gtk_container_add (GTK_CONTAINER (window), video);
+
+      title = gtk_header_bar_new ();
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (title), TRUE);
+      gtk_header_bar_set_title (GTK_HEADER_BAR (title), "Video Player");
+      gtk_window_set_titlebar (GTK_WINDOW (window), title);
+
+      open_button = gtk_button_new_with_mnemonic ("_Open");
+      g_signal_connect (open_button, "clicked", G_CALLBACK (open_clicked_cb), video);
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (title), open_button);
+
+      fullscreen_button = gtk_button_new_from_icon_name ("view-fullscreen-symbolic");
+      g_signal_connect (fullscreen_button, "clicked", G_CALLBACK (fullscreen_clicked_cb), NULL);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (title), fullscreen_button);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
@@ -1,387 +0,0 @@
-/* Benchmark/Widgetbowl
- *
- * This demo models the fishbowl demos seen on the web in a GTK way.
- * It's also a neat little tool to see how fast your computer (or
- * your GTK version) is.
- */
-
-#include <gtk/gtk.h>
-
-#include "gtkfishbowl.h"
-
-const char *const css =
-".blurred-button {"
-"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
-"}"
-"";
-
-GtkWidget *fishbowl;
-
-static GtkWidget *
-create_button (void)
-{
-  return gtk_button_new_with_label ("Button");
-}
-static GtkWidget *
-create_blurred_button (void)
-{
-  GtkWidget *w = gtk_button_new ();
-
-  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
-
-  return w;
-}
-
-static GtkWidget *
-create_font_button (void)
-{
-  return gtk_font_button_new ();
-}
-
-static GtkWidget *
-create_level_bar (void)
-{
-  GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
-
-  gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
-
-  /* Force them to be a bit larger */
-  gtk_widget_set_size_request (w, 200, -1);
-
-  return w;
-}
-
-static GtkWidget *
-create_spinner (void)
-{
-  GtkWidget *w = gtk_spinner_new ();
-
-  gtk_spinner_start (GTK_SPINNER (w));
-
-  return w;
-}
-
-static GtkWidget *
-create_spinbutton (void)
-{
-  GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
-
-  return w;
-}
-
-static GtkWidget *
-create_label (void)
-{
-  GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
-
-  gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
-  gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
-
-  return w;
-}
-
-static const struct {
-  const char *name;
-  GtkWidget * (*create_func) (void);
-} widget_types[] = {
-  { "Button",     create_button         },
-  { "Blurbutton", create_blurred_button },
-  { "Fontbutton", create_font_button    },
-  { "Levelbar"  , create_level_bar      },
-  { "Label"     , create_label          },
-  { "Spinner"   , create_spinner        },
-  { "Spinbutton", create_spinbutton     },
-};
-
-static int selected_widget_type = -1;
-static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
-
-#define N_STATS 5
-
-#define STATS_UPDATE_TIME G_USEC_PER_SEC
-
-static void
-set_widget_type (GtkWidget *headerbar,
-                 int        widget_type_index)
-{
-  GList *children, *l;
-
-  if (widget_type_index == selected_widget_type)
-    return;
-
-  /* Remove everything */
-  children = gtk_container_get_children (GTK_CONTAINER (fishbowl));
-  for (l = children; l; l = l->next)
-    {
-      gtk_container_remove (GTK_CONTAINER (fishbowl), (GtkWidget*)l->data);
-    }
-
-  g_list_free (children);
-
-  selected_widget_type = widget_type_index;
-
-  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
-                            widget_types[selected_widget_type].name);
-}
-
-
-typedef struct _Stats Stats;
-struct _Stats {
-  gint64 last_stats;
-  gint64 last_frame;
-  gint last_suggestion;
-  guint frame_counter_max;
-
-  guint stats_index;
-  guint frame_counter[N_STATS];
-  guint item_counter[N_STATS];
-};
-
-static Stats *
-get_stats (GtkWidget *widget)
-{
-  static GQuark stats_quark = 0;
-  Stats *stats;
-
-  if (G_UNLIKELY (stats_quark == 0))
-    stats_quark = g_quark_from_static_string ("stats");
-
-  stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
-  if (stats == NULL)
-    {
-      stats = g_new0 (Stats, 1);
-      g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
-      stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-      stats->last_stats = stats->last_frame;
-    }
-
-  return stats;
-}
-
-static void
-do_stats (GtkWidget *widget,
-          GtkWidget *info_label,
-          gint      *suggested_change)
-{
-  Stats *stats;
-  gint64 frame_time;
-
-  stats = get_stats (widget);
-  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-
-  if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
-    {
-      char *new_label;
-      guint i, n_frames;
-
-      n_frames = 0;
-      for (i = 0; i < N_STATS; i++)
-        {
-          n_frames += stats->frame_counter[i];
-        }
-
-      new_label = g_strdup_printf ("widgets - %.1f fps",
-                                   (double) G_USEC_PER_SEC * n_frames
-                                       / (N_STATS * STATS_UPDATE_TIME));
-      gtk_label_set_label (GTK_LABEL (info_label), new_label);
-      g_free (new_label);
-
-      if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
-        {
-          if (stats->last_suggestion > 0)
-            stats->last_suggestion *= 2;
-          else
-            stats->last_suggestion = 1;
-        }
-      else
-        {
-          if (stats->last_suggestion < 0)
-            stats->last_suggestion--;
-          else
-            stats->last_suggestion = -1;
-          stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
-        }
-
-      stats->stats_index = (stats->stats_index + 1) % N_STATS;
-      stats->frame_counter[stats->stats_index] = 0;
-      stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
-      stats->last_stats = frame_time;
-
-      if (suggested_change)
-        *suggested_change = stats->last_suggestion;
-      else
-        stats->last_suggestion = 0;
-    }
-  else
-    {
-      if (suggested_change)
-        *suggested_change = 0;
-    }
-
-  stats->last_frame = frame_time;
-  stats->frame_counter[stats->stats_index]++;
-  stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
-}
-
-static void
-stats_update (GtkWidget *widget)
-{
-  Stats *stats;
-
-  stats = get_stats (widget);
-
-  stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
-}
-
-static gboolean
-move_fish (GtkWidget     *bowl,
-           GdkFrameClock *frame_clock,
-           gpointer       info_label)
-{
-  gint suggested_change = 0;
-
-  do_stats (bowl, info_label, &suggested_change);
-
-  if (suggested_change > 0)
-    {
-      int i;
-
-      for (i = 0; i < suggested_change; i ++)
-        {
-          GtkWidget *new_widget = widget_types[selected_widget_type].create_func ();
-
-          gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
-
-        }
-    }
-  else if (suggested_change < 0)
-    {
-      GList *children, *l;
-      int n_removed = 0;
-
-      children = gtk_container_get_children (GTK_CONTAINER (fishbowl));
-      for (l = children; l; l = l->next)
-        {
-          gtk_container_remove (GTK_CONTAINER (fishbowl), (GtkWidget *)l->data);
-          n_removed ++;
-
-          if (n_removed >= (-suggested_change))
-            break;
-        }
-
-      g_list_free (children);
-    }
-
-  stats_update (bowl);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-next_button_clicked_cb (GtkButton *source,
-                        gpointer   user_data)
-{
-  GtkWidget *headerbar = user_data;
-  int new_index;
-
-  if (selected_widget_type + 1 >= N_WIDGET_TYPES)
-    new_index = 0;
-  else
-    new_index = selected_widget_type + 1;
-
-  set_widget_type (headerbar, new_index);
-}
-
-static void
-prev_button_clicked_cb (GtkButton *source,
-                        gpointer   user_data)
-{
-  GtkWidget *headerbar = user_data;
-  int new_index;
-
-  if (selected_widget_type - 1 < 0)
-    new_index = N_WIDGET_TYPES - 1;
-  else
-    new_index = selected_widget_type - 1;
-
-  set_widget_type (headerbar, new_index);
-}
-
-GtkWidget *
-do_widgetbowl (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-  static GtkCssProvider *provider = NULL;
-
-  gtk_init ();
-
-  if (provider == NULL)
-    {
-      provider = gtk_css_provider_new ();
-      gtk_css_provider_load_from_data (provider, css, -1);
-      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
-                                                  GTK_STYLE_PROVIDER (provider),
-                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-    }
-
-  if (!window)
-    {
-      GtkWidget *info_label;
-      GtkWidget *count_label;
-      GtkWidget *titlebar;
-      GtkWidget *title_box;
-      GtkWidget *left_box;
-      GtkWidget *next_button;
-      GtkWidget *prev_button;
-
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      titlebar = gtk_header_bar_new ();
-      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (titlebar), TRUE);
-      info_label = gtk_label_new ("widget - 00.0 fps");
-      count_label = gtk_label_new ("0");
-      fishbowl = gtk_fishbowl_new ();
-      title_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
-      prev_button = gtk_button_new_from_icon_name ("pan-start-symbolic");
-      next_button = gtk_button_new_from_icon_name ("pan-end-symbolic");
-      left_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-
-      g_object_bind_property (fishbowl, "count", count_label, "label", 0);
-      g_signal_connect (next_button, "clicked", G_CALLBACK (next_button_clicked_cb), titlebar);
-      g_signal_connect (prev_button, "clicked", G_CALLBACK (prev_button_clicked_cb), titlebar);
-
-      gtk_fishbowl_set_animating (GTK_FISHBOWL (fishbowl), TRUE);
-
-      gtk_widget_set_hexpand (title_box, TRUE);
-      gtk_widget_set_halign (title_box, GTK_ALIGN_END);
-
-      gtk_window_set_titlebar (GTK_WINDOW (window), titlebar);
-      gtk_container_add (GTK_CONTAINER (title_box), count_label);
-      gtk_container_add (GTK_CONTAINER (title_box), info_label);
-      gtk_header_bar_pack_end (GTK_HEADER_BAR (titlebar), title_box);
-      gtk_container_add (GTK_CONTAINER (window), fishbowl);
-
-
-      gtk_style_context_add_class (gtk_widget_get_style_context (left_box), "linked");
-      gtk_container_add (GTK_CONTAINER (left_box), prev_button);
-      gtk_container_add (GTK_CONTAINER (left_box), next_button);
-      gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), left_box);
-
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      gtk_widget_realize (window);
-      gtk_widget_add_tick_callback (fishbowl, move_fish, info_label, NULL);
-
-      set_widget_type (titlebar, 0);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_widget_destroy (window);
-
-
-  return window;
-}
@@ -32,7 +32,7 @@ media-view-subtitles=The icon used to show subtitles in a media player

 [network]
 Name=Network
-Description=Icons related to network status");
+Description=Icons related to network status

 network-transmit-receive=The icon used data is being both transmitted and received simultaneously, while the computing device is connected to a network
 network-transmit=The icon used when data is being transmitted, while the computing device is connected to a network
@@ -286,13 +286,16 @@ populate (IconBrowserWindow *win)
 }

 static gboolean
-key_press_event_cb (GtkWidget *widget,
-                    GdkEvent  *event,
-                    gpointer   data)
+key_event_cb (GtkEventController *controller,
+              guint               keyval,
+              guint               keycode,
+              GdkModifierType     state,
+              gpointer            data)
 {
  IconBrowserWindow *win = data;

-  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar), event);
+  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar),
+                                      gtk_get_current_event ());
 }

 static void
@@ -451,6 +454,7 @@ static void
 icon_browser_window_init (IconBrowserWindow *win)
 {
  GdkContentFormats *list;
+  GtkEventController *controller;

  gtk_widget_init_template (GTK_WIDGET (win));

@@ -467,6 +471,7 @@ icon_browser_window_init (IconBrowserWindow *win)
  setup_image_dnd (win->image3);
  setup_image_dnd (win->image4);
  setup_image_dnd (win->image5);
+  setup_image_dnd (win->image6);
  setup_scalable_image_dnd (win->image6);

  win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, context_free);
@@ -479,12 +484,30 @@ icon_browser_window_init (IconBrowserWindow *win)

  symbolic_toggled (GTK_TOGGLE_BUTTON (win->symbolic_radio), win);

+  controller = gtk_event_controller_key_new ();
+  g_signal_connect (controller, "key-pressed", G_CALLBACK (key_event_cb), win);
+  gtk_widget_add_controller (GTK_WIDGET (win), controller);
+
  populate (win);
 }

+static void
+icon_browser_window_finalize (GObject *object)
+{
+  IconBrowserWindow *win = ICON_BROWSER_WINDOW (object);
+
+  g_hash_table_unref (win->contexts);
+
+  G_OBJECT_CLASS (icon_browser_window_parent_class)->finalize (object);
+}
+
 static void
 icon_browser_window_class_init (IconBrowserWindowClass *class)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->finalize = icon_browser_window_finalize;
+
  g_type_ensure (ICON_STORE_TYPE);

  gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
@@ -515,7 +538,6 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), item_activated);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), selected_context_changed);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
-  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), key_press_event_cb);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
 }

@@ -14,6 +14,7 @@ executable('gtk4-icon-browser',
           dependencies: libgtk_dep,
           include_directories: confinc,
           gui_app: true,
+           link_args: extra_demo_ldflags,
           install: true)

 install_data('gtk4-icon-browser.desktop', install_dir: gtk_applicationsdir)
@@ -1,38 +1,32 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.8 -->
-  <object class="IconStore" id="store">
-  </object>
+  <object class="IconStore" id="store"/>
  <object class="GtkTreeModelFilter" id="filter_model">
-    <property name="child_model">store</property>
+    <property name="child-model">store</property>
  </object>
  <template class="IconBrowserWindow" parent="GtkApplicationWindow">
    <property name="title" translatable="yes">Icon Browser</property>
    <property name="default-width">1024</property>
    <property name="default-height">768</property>
-    <signal name="key-press-event" handler="key_press_event_cb"/>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="header">
-        <property name="visible">True</property>
        <property name="title" translatable="yes">Icon Browser</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
        <child type="title">
          <object class="GtkBox">
-            <property name="visible">True</property>
            <style>
              <class name="linked"/>
            </style>
            <child>
              <object class="GtkRadioButton" id="normal_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                <property name="label" translatable="yes">Normal</property>
              </object>
            </child>
            <child>
              <object class="GtkRadioButton" id="symbolic_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                <property name="label" translatable="yes">Symbolic</property>
                <property name="group">normal_radio</property>
                <signal name="toggled" handler="symbolic_toggled"/>
@@ -42,13 +36,11 @@
        </child>
        <child>
          <object class="GtkToggleButton" id="search">
-            <property name="visible">True</property>
            <style>
              <class name="image-button"/>
            </style>
            <child>
              <object class="GtkImage" id="search-icon">
-                <property name="visible">True</property>
                <property name="icon-name">edit-find-symbolic</property>
              </object>
            </child>
@@ -61,32 +53,24 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">True</property>
-        <property name="orientation">horizontal</property>
        <child>
          <object class="GtkListBox" id="context_list">
-            <property name="visible">True</property>
-            <property name="selection_mode">single</property>
            <signal name="selected-rows-changed" handler="selected_context_changed"/>
          </object>
        </child>
        <child>
          <object class="GtkSeparator">
-            <property name="visible">True</property>
            <property name="orientation">vertical</property>
          </object>
        </child>
        <child>
          <object class="GtkBox" id="content_box">
-            <property name="visible">True</property>
            <property name="orientation">vertical</property>
            <child>
              <object class="GtkSearchBar" id="searchbar">
-                <property name="visible">True</property>
                <property name="search-mode-enabled" bind-source="search" bind-property="active" bind-flags="bidirectional"/>
                <child>
                  <object class="GtkSearchEntry" id="searchentry">
-                    <property name="visible">True</property>
                    <signal name="search-changed" handler="search_text_changed"/>
                  </object>
                </child>
@@ -94,29 +78,24 @@
            </child>
            <child>
              <object class="GtkScrolledWindow" id="sw">
-                <property name="visible">True</property>
-                <property name="expand">True</property>
+                <property name="expand">1</property>
                <property name="hscrollbar-policy">never</property>
-                <property name="vscrollbar-policy">automatic</property>
                <child>
                  <object class="GtkIconView" id="list">
-                    <property name="visible">True</property>
                    <property name="model">filter_model</property>
                    <property name="selection-mode">none</property>
-                    <property name="activate-on-single-click">True</property>
+                    <property name="activate-on-single-click">1</property>
                    <signal name="item_activated" handler="item_activated"/>
                    <child>
                      <object class="GtkCellRendererPixbuf" id="cell">
                        <property name="xpad">10</property>
                        <property name="ypad">10</property>
-                        <property name="stock-size">6</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkCellRendererText" id="text_cell">
                        <property name="xpad">10</property>
                        <property name="ypad">10</property>
-                        <property name="xalign">0.5</property>
                      </object>
                    </child>
                  </object>
@@ -137,24 +116,25 @@
    </widgets>
  </object>
  <object class="GtkDialog" id="details">
-    <property name="modal">True</property>
+    <property name="modal">1</property>
    <property name="use-header-bar">1</property>
-    <property name="resizable">False</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="resizable">0</property>
+    <property name="hide-on-close">1</property>
    <child internal-child="vbox">
      <object class="GtkBox">
        <child>
          <object class="GtkGrid">
-            <property name="visible">True</property>
            <property name="margin">10</property>
            <property name="row-spacing">18</property>
            <property name="column-spacing">18</property>
            <property name="halign">center</property>
            <child>
              <object class="GtkImage" id="image1">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label1"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">0</property>
@@ -163,9 +143,11 @@
            </child>
            <child>
              <object class="GtkImage" id="image2">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label2"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">1</property>
@@ -174,9 +156,11 @@
            </child>
            <child>
              <object class="GtkImage" id="image3">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label3"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">2</property>
@@ -185,9 +169,11 @@
            </child>
            <child>
              <object class="GtkImage" id="image4">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label4"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">3</property>
@@ -196,9 +182,11 @@
            </child>
            <child>
              <object class="GtkImage" id="image5">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label5"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">4</property>
@@ -207,25 +195,28 @@
            </child>
            <child>
              <object class="GtkImage" id="image6">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label6"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">5</property>
                <property name="top-attach">1</property>
              </packing>
            </child>
-
            <child>
              <object class="GtkLabel" id="label1">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">16×16</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image1"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">0</property>
@@ -234,13 +225,15 @@
            </child>
            <child>
              <object class="GtkLabel" id="label2">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">24×24</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image2"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">1</property>
@@ -249,13 +242,15 @@
            </child>
            <child>
              <object class="GtkLabel" id="label3">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">32×32</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image3"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">2</property>
@@ -264,13 +259,15 @@
            </child>
            <child>
              <object class="GtkLabel" id="label4">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">48×48</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image4"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">3</property>
@@ -279,13 +276,15 @@
            </child>
            <child>
              <object class="GtkLabel" id="label5">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">64×64</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image5"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">4</property>
@@ -294,13 +293,15 @@
            </child>
            <child>
              <object class="GtkLabel" id="label6">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">scalable</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <accessibility>
+                  <relation type="label-for" target="image6"/>
+                </accessibility>
              </object>
              <packing>
                <property name="left-attach">5</property>
@@ -311,7 +312,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">True</property>
            <property name="label" translatable="yes">Copy to Clipboard</property>
            <property name="halign">center</property>
            <property name="valign">center</property>
@@ -322,8 +322,7 @@
        <child>
          <object class="GtkLabel" id="description">
            <property name="margin">10</property>
-            <property name="visible">True</property>
-            <property name="wrap">True</property>
+            <property name="wrap">1</property>
            <property name="max-width-chars">60</property>
            <property name="valign">start</property>
          </object>
@@ -2,28 +2,23 @@
  <object class="GtkShortcutsWindow" id="help_overlay">
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F1</property>
                <property name="title">Show About Dialog</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;q</property>
                <property name="title">Quit</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;d</property>
                <property name="title">Switch to dark theme</property>
              </object>
@@ -32,26 +27,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">Traditional</property>
            <property name="view">page2</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;s</property>
                <property name="title">Search</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title">Delete</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;b</property>
                <property name="title">Set background</property>
              </object>
@@ -60,26 +51,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">Modern</property>
            <property name="view">page3</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;o</property>
                <property name="title">Open a file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;r</property>
                <property name="title">Start recording</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;l</property>
                <property name="title">Lock or unlock</property>
              </object>
@@ -9,6 +9,7 @@ executable('gtk4-widget-factory',
           dependencies: libgtk_dep,
           include_directories: confinc,
           gui_app: true,
+           link_args: extra_demo_ldflags,
           install: true)

 # desktop file
@@ -24,3 +25,6 @@ foreach icon_size : ['16x16', '22x22', '24x24', '32x32', '48x48', '256x256', ]
  install_data('data/@0@/gtk4-widget-factory-symbolic.symbolic.png'.format(icon_size),
               install_dir: icons_dir)
 endforeach
+
+# appdata
+install_data('org.gtk.WidgetFactory.appdata.xml', install_dir: gtk_appdatadir)
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.gtk.WidgetFactory.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>LGPL-2.0+</project_license>
+  <name>GTK+ Widget Factory</name>
+  <summary>Program to demonstrate GTK+ functions</summary>
+  <description>
+    <p>
+      GTK+ Widget Factory is a showcase of GTK+ widgets. It was
+      originally created to help theme authors test their creations
+      for completeness.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-widget-factory/gtk-widget-factory1.png</image>
+      <caption>Page 1</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-widget-factory/gtk-widget-factory2.png</image>
+      <caption>Page 3</caption>
+    </screenshot>
+  </screenshots>
+  <kudos>
+    <kudo>AppMenu</kudo>
+    <kudo>HiDpiIcon</kudo>
+    <kudo>ModernToolkit</kudo>
+  </kudos>
+  <url type="homepage">https://www.gtk.org</url>
+  <translation type="gettext">gtk-4.0</translation>
+  <update_contact>matthias.clasen_at_gmail.com</update_contact>
+  <developer_name>Matthias Clasen and others</developer_name>
+</component>
@@ -64,7 +64,7 @@ get_idle (gpointer data)
  GtkApplication *app = gtk_window_get_application (GTK_WINDOW (window));

  gtk_widget_set_sensitive (window, TRUE);
-  gdk_window_set_cursor (gtk_widget_get_window (window), NULL);
+  gdk_surface_set_cursor (gtk_widget_get_surface (window), NULL);
  g_application_unmark_busy (G_APPLICATION (app));

  return G_SOURCE_REMOVE;
@@ -81,7 +81,7 @@ get_busy (GSimpleAction *action,

  g_application_mark_busy (G_APPLICATION (app));
  cursor = gdk_cursor_new_from_name ("wait", NULL);
-  gdk_window_set_cursor (gtk_widget_get_window (window), cursor);
+  gdk_surface_set_cursor (gtk_widget_get_surface (window), cursor);
  g_object_unref (cursor);
  g_timeout_add (5000, get_idle, window);

@@ -1082,7 +1082,7 @@ set_accel (GtkApplication *app, GtkWidget *widget)
 typedef struct
 {
  GtkTextView tv;
-  cairo_surface_t *surface;
+  GdkPixbuf *pixbuf;
 } MyTextView;

 typedef GtkTextViewClass MyTextViewClass;
@@ -1101,10 +1101,10 @@ my_tv_draw_layer (GtkTextView      *widget,
 {
  MyTextView *tv = (MyTextView *)widget;

-  if (layer == GTK_TEXT_VIEW_LAYER_BELOW_TEXT && tv->surface)
+  if (layer == GTK_TEXT_VIEW_LAYER_BELOW_TEXT && tv->pixbuf)
    {
      cairo_save (cr);
-      cairo_set_source_surface (cr, tv->surface, 0.0, 0.0);
+      gdk_cairo_set_source_pixbuf (cr, tv->pixbuf, 0.0, 0.0);
      cairo_paint_with_alpha (cr, 0.333);
      cairo_restore (cr);
    }
@@ -1115,8 +1115,7 @@ my_tv_finalize (GObject *object)
 {
  MyTextView *tv = (MyTextView *)object;

-  if (tv->surface)
-    cairo_surface_destroy (tv->surface);
+  g_clear_object (&tv->pixbuf);

  G_OBJECT_CLASS (my_text_view_parent_class)->finalize (object);
 }
@@ -1134,18 +1133,14 @@ my_text_view_class_init (MyTextViewClass *class)
 static void
 my_text_view_set_background (MyTextView *tv, const gchar *filename)
 {
-  GdkPixbuf *pixbuf;
  GError *error = NULL;

-  if (tv->surface)
-    cairo_surface_destroy (tv->surface);
-
-  tv->surface = NULL;
+  g_clear_object (&tv->pixbuf);

  if (filename == NULL)
    return;

-  pixbuf = gdk_pixbuf_new_from_file (filename, &error);
+  tv->pixbuf = gdk_pixbuf_new_from_file (filename, &error);
  if (error)
    {
      g_warning ("%s", error->message);
@@ -1153,10 +1148,6 @@ my_text_view_set_background (MyTextView *tv, const gchar *filename)
      return;
    }

-  tv->surface = gdk_cairo_surface_create_from_pixbuf (pixbuf, 1, NULL);
-
-  g_object_unref (pixbuf);
-
  gtk_widget_queue_draw (GTK_WIDGET (tv));
 }

@@ -1655,7 +1646,6 @@ activate (GApplication *app)
  gint i;
  GPermission *permission;
  GAction *action;
-  GtkGesture *gesture;

  g_type_ensure (my_text_view_get_type ());

@@ -1680,6 +1670,7 @@ activate (GApplication *app)
  gtk_builder_add_callback_symbol (builder, "reset_icon_size", (GCallback)reset_icon_size);
  gtk_builder_add_callback_symbol (builder, "scale_format_value", (GCallback)scale_format_value);
  gtk_builder_add_callback_symbol (builder, "scale_format_value_blank", (GCallback)scale_format_value_blank);
+  gtk_builder_add_callback_symbol (builder, "osd_frame_pressed", (GCallback)osd_frame_pressed);

  gtk_builder_connect_signals (builder, NULL);

@@ -1897,10 +1888,6 @@ activate (GApplication *app)
  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget);
  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget2);

-  widget = (GtkWidget *)gtk_builder_get_object (builder, "osd_frame");
-  gesture = gtk_gesture_multi_press_new (widget);
-  g_signal_connect (gesture, "pressed", G_CALLBACK (osd_frame_pressed), widget);
-
  gtk_widget_show (GTK_WIDGET (window));

  g_object_unref (builder);
@@ -0,0 +1,68 @@
+# These are the people responsible for subsystems in GTK; if you're opening
+# a merge request for files listed here, please add the following people to
+# the list of reviewers
+
+# The syntax of this file is similar to the GitHub CODEOWNERS file:
+#   https://help.github.com/articles/about-codeowners/
+# Which, in turn, is similar to the .gitignore and .gitattributes files:
+#
+#  - comments start with `#`
+#  - the first column contains paths and globs
+#  - the second column contains GitLab user names or email addresses,
+#    separated by spaces
+#
+# If you want to be responsible for code reviews in specific sections of
+# the GTK code base, add yourself here.
+
+# Maintainer
+*                       @matthiasc
+
+# Build system
+meson.build             @ebassi @nirbheek
+*.py                    @ebassi
+
+# CSS
+gtk/gtkcss*.[ch]        @otte @baedert
+gtk/gtkstyle*.[ch]      @otte @baedert
+
+# Gestures
+gtk/gtkeventcontroller* @carlosg
+gtk/gtkgesture*.[ch]    @carlosg
+
+# GtkFileChooser
+gtk/gtkfilechooser*     @federico
+gtk/gtkfilesystem*      @federico
+gtk/gtkfilefilter*      @federico
+
+# GtkFontChooser
+gtk/gtkfontchooser*     @matthiasc
+
+# Input methods
+gtk/gtkimcontext*       @carlosg
+
+# Media
+gtk/gtkmedia*           @otte
+
+# GSK
+gsk                     @otte @baedert @ebassi
+
+# GL rendering
+gsk/gl                  @baedert @ebassi
+
+# Vulkan rendering
+gsk/vulkan
+
+# Documentation
+docs/                   @ebassi @dboles
+
+# Wayland
+gdk/wayland             @jadahl
+
+# X11
+gdk/x11                 @ofourdan @matthiasc
+
+# Themes
+gtk/themes              @lapoc @jimmac
+
+# Inspector
+gtk/inspector           @otte @matthiasc
@@ -439,41 +439,91 @@ Public headers should never be included directly:
  #error "Only <gtk/gtk.h> can be included directly."
  #endif

-All headers should have inclusion guards (for internal usage)
-and C++ guards:
+Private headers should include the public header first, if one exists:
+
+  #ifndef __GTK_FOO_PRIVATE_H__
+  #define __GTK_FOO_PRIVATE_H__
+
+  #include "gtkfoo.h"
+
+  ...
+
+  #endif /* __GTK_FOO_PRIVATE_H__ */
+
+All headers should have inclusion guards:

  #ifndef __GTK_FOO_H__
  #define __GTK_FOO_H__

-  #include <gtk/gtk-bar.h>
+  ...
+
+  #endif /* __GTK_FOO_H__ */
+
+You can also use the "once" pragma instead of the classic pre-processor guard:
+
+  #pragma once
+
+Additionally, public headers should use C++ guards around their declarations:

  G_BEGIN_DECLS

+  GDK_AVAILABLE_IN_ALL
+  GType         gtk_foo_get_type        (void) G_GNUC_CONST;
+
+  GDK_AVAILABLE_IN_ALL
+  GtkWidget *   gtk_foo_new             (void);
+
  ...

  G_END_DECLS

-  #endif /* __GTK_FOO_H__ */
-
 + Includes

-GTK+ source files should never include the global gtk.h header, but
-instead include the individual headers that are needed. Every file must
-include config.h first, then its own header, then other GTK+ headers
-that it needs, then system and third-party headers that it needs.
+GTK+ source files must never include the global gtk.h header; instead, it
+should include the individual headers that are needed.
+
+Every source file must include config.h first, followed by the header matching
+the source file, either the public installed header, or the private header, if
+it exists.

-  /* valid */
  #include "config.h"

  #include "gtkfoo.h"

-  #include "gtkwidget.h"
+Source files should then include project headers, in alphabetical order,
+starting from headers in the current directory; then headers in
+sub-directories; and, finally, in paths relative to the top-level
+directory:
+
+  #include "config.h"
+
+  #include "gtkfooprivate.h"
+
  #include "gtkbutton.h"
+  #include "gtkwidget.h"

-  ...
+  #include "a11y/gtkwidgetaccessible.h"

+  #include "gdk/gdkwindowprivate.h"
+
+Finally, source files should include the system headers last:
+
+  #include "config.h"
+
+  #include "gtkbarprivate.h"
+
+  #include "gtkcontainerprivate.h"
+
+  #include "a11y/gtkcontaineraccessible.h"
+  #include "a11y/gtkwidgetaccessible.h"
+
+  #include "gdk/gdkwindowprivate.h"
+
+  #include <graphene.h>
  #include <string.h>

+Cyclic dependencies should be avoided if at all possible; for instance, you
+could use additional headers to break cycles.

 + GObject

@@ -484,7 +534,6 @@ Typedef declarations should be placed at the beginning of the file:

  typedef struct _GtkFoo          GtkFoo;
  typedef struct _GtkFooClass     GtkFooClass;
-  typedef struct _GtkFooPrivate   GtkFooPrivate;

 This includes enumeration types:

@@ -499,26 +548,21 @@ And callback types:
  typedef void (* GtkCallback) (GtkWidget *widget,
                                gpointer   user_data);

-Instance structures should only contain the parent type, and optionally a
-pointer to a private data structure, and they should be annotated as
-"private" using the gtk-doc trigraph:
+Instance structures should only contain the parent type:

  struct _GtkFoo
  {
-    /*< private >*/
    GtkWidget parent_instance;
-
-    GtkFooPrivate *priv;
  };

-The private data pointer is optional and should be omitted in newly
-written classes.
+You should use the G_DECLARE_DERIVABLE_TYPE() and G_DECLARE_FINAL_TYPE()
+macros in newly written headers.

-Always use the G_DEFINE_TYPE(), G_DEFINE_TYPE_WITH_PRIVATE(), and
-G_DEFINE_TYPE_WITH_CODE() macros, or their abstract variants
-G_DEFINE_ABSTRACT_TYPE(), G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and
-G_DEFINE_ABSTRACT_TYPE_WITH_CODE(); also, use the similar macros for
-defining interfaces and boxed types.
+Inside your source file, always use the G_DEFINE_TYPE(),
+G_DEFINE_TYPE_WITH_PRIVATE(), and G_DEFINE_TYPE_WITH_CODE() macros, or their
+abstract variants G_DEFINE_ABSTRACT_TYPE(),
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and G_DEFINE_ABSTRACT_TYPE_WITH_CODE();
+also, use the similar macros for defining interfaces, quarks, and boxed types.

 All the properties should be stored inside the private data structure, which
 is defined inside the source file - or, if needed, inside a private header
@@ -526,14 +570,14 @@ file; the private header filename must end with "private.h" and must not be
 installed.

 The private data structure should only be accessed internally either using the
-pointer inside the instance structure, if one is available, or the generated
+pointer inside the instance structure, for legacy code, or the generated
 instance private data getter function for your type. You should never use the
 G_TYPE_INSTANCE_GET_PRIVATE() macro or the g_type_instance_get_private()
 function.

 Interface types should always have the dummy typedef for cast purposes:

-        typedef struct _GtkFoo              GtkFoo;
+        typedef struct _GtkFoo                  GtkFoo;

 The interface structure should have "Interface" postfixed to the dummy typedef:

@@ -564,19 +608,16 @@ Inline functions are usually preferable to private macros.

 Public macros should not be used unless they evaluate to a constant.

-+ Public API
+ Symbol visibility

-Avoid exporting variables as public API, since this is cumbersome on some
+Any symbol that is not explicitly annotated using a GDK_AVAILABLE_IN_*
+macro is considered internal, and not exported in the shared library.
+
+Never export variables as public API, since this is cumbersome on some
 platforms. It is always preferable to add getters and setters instead.

-All public functions must be listed in the gtk.symbols file.
-
-+ Private API
-
 Non-exported functions that are needed in more than one source file
-should be named "_gtk_...", and declared in a private header file.
-
-Underscore-prefixed functions are never exported.
+should be declared in a private header file.

 Non-exported functions that are only needed in one source file
 should be declared static.
@@ -638,4 +679,4 @@ of tabs, etc.

 It is ok to update the style of a code block or function when you
 are touching it anyway, but sweeping whitespace changes obscure the
-git history and should be avoided.
+source revision history, and should be avoided.
@@ -26,13 +26,13 @@ Refer to the file widget_system.txt which covers widget flags and the
 resulting invariants in a detailed way.


-GdkWindow pointers may be NULL in GdkEvents
+GdkSurface pointers may be NULL in GdkEvents
 -------------------------------------------

 The notification nature of the signal mechanism might cause events to
-be emitted that have their GdkWindow pointer set to NULL.
+be emitted that have their GdkSurface pointer set to NULL.
 This is due to the fact that certain events need to be emitted after the
-real GdkWindow of a widget is not any longer pertinent.
+real GdkSurface of a widget is not any longer pertinent.
 It's up to the signal handling function (application) to check for the
 window field of the event structure to be != NULL, if it is going to
 perform any operations through Gdk calls on it.
@@ -43,7 +43,7 @@ GDK_SELECTION_CLEAR     GtkWidget::selection_clear_event
 GDK_FOCUS_CHANGE        GtkWidget::focus_in_event
                        GtkWidget::focus_out_event

-Events that are assured to have a valid GdkEvent.any.window field are
+Events that are assured to have a valid GdkEvent.any.surface field are

 GDK_EXPOSE		GtkWidget::expose_event

@@ -51,10 +51,10 @@ GDK_EXPOSE		GtkWidget::expose_event
 Writing Gdk functions
 ---------------------

-When writing Gdk functions that operate on GdkWindow structures in any
-meaningful sense, that is casting to a GdkWindowPrivate structure for
-access to fields other then GdkWindow.user_data, the programmer is
-recommended to check for the GdkWindowPrivate.destroyed field to be ==
-FALSE, especially if the GdkWindowPrivate.xwindow field is used.
+When writing Gdk functions that operate on GdkSurface structures in any
+meaningful sense, that is casting to a GdkSurfacePrivate structure for
+access to fields other then GdkSurface.user_data, the programmer is
+recommended to check for the GdkSurfacePrivate.destroyed field to be ==
+FALSE, especially if the GdkSurfacePrivate.xwindow field is used.
 Silent abortion of the Gdk function is the correct behaviour if this
 condition isn't met.
@@ -71,9 +71,6 @@ straightforward manner.
 void             gdk_drag_status        (GdkDragContext   *context,
 				         GdkDragAction     action,
 					 guint32           time);
-void             gdk_drop_reply         (GdkDragContext   *context,
-					 gboolean          ok,
-					 guint32           time);
 void             gdk_drop_finish        (GdkDragContext   *context,
 					 gboolean          success,
 					 guint32           time);
@@ -81,19 +78,19 @@ GdkAtom          gdk_drag_get_selection (GdkDragContext   *context);

 /* Source side */

-GdkDragContext * gdk_drag_begin      (GdkWindow      *window,
+GdkDragContext * gdk_drag_begin      (GdkSurface      *window,
 				      GList          *targets,
 				      GdkDragAction   actions);
 gboolean         gdk_drag_get_protocol (guint32          xid,
 					GdkDragProtocol *protocol);
 void             gdk_drag_find_window (GdkDragContext   *context,
-				       GdkWindow       *drag_window,
+				       GdkSurface       *drag_surface,
 			 	       gint             x_root,
 				       gint             y_root,
-				       GdkWindow      **dest_window,
+				       GdkSurface      **dest_surface,
 				       GdkDragProtocol *protocol);
 gboolean        gdk_drag_motion      (GdkDragContext *context,
-				      GdkWindow      *dest_window,
+				      GdkSurface      *dest_surface,
 				      GdkDragProtocol protocol,
 				      gint            x_root, 
 				      gint            y_root,
@@ -27,12 +27,12 @@
    <xi:include href="xml/gdkmonitor.xml" />
    <xi:include href="xml/regions.xml" />
    <xi:include href="xml/textures.xml" />
+    <xi:include href="xml/gdkpaintable.xml" />
    <xi:include href="xml/rgba_colors.xml" />
    <xi:include href="xml/cursors.xml" />
-    <xi:include href="xml/windows.xml" />
+    <xi:include href="xml/gdksurface.xml" />
    <xi:include href="xml/gdkframeclock.xml" />
    <xi:include href="xml/gdkframetimings.xml" />
-    <xi:include href="xml/gdkdrawingcontext.xml" />
    <xi:include href="xml/gdkdrawcontext.xml" />
    <xi:include href="xml/gdkglcontext.xml" />
    <xi:include href="xml/gdkvulkancontext.xml" />
@@ -45,7 +45,6 @@
    <xi:include href="xml/gdkcontentserializer.xml" />
    <xi:include href="xml/gdkcontentdeserializer.xml" />
    <xi:include href="xml/properties.xml" />
-    <xi:include href="xml/threads.xml" />
    <xi:include href="xml/gdkapplaunchcontext.xml" />
    <xi:include href="xml/pixbufs.xml" />
    <xi:include href="xml/pango_interaction.xml" />
@@ -62,54 +61,6 @@
    <title>Index of deprecated symbols</title>
    <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
  </index>
-  <index id="api-index-3-0" role="3.0">
-    <title>Index of new symbols in 3.0</title>
-    <xi:include href="xml/api-index-3.0.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-2" role="3.2">
-    <title>Index of new symbols in 3.2</title>
-    <xi:include href="xml/api-index-3.2.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-4" role="3.4">
-    <title>Index of new symbols in 3.4</title>
-    <xi:include href="xml/api-index-3.4.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-6" role="3.6">
-    <title>Index of new symbols in 3.6</title>
-    <xi:include href="xml/api-index-3.6.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-8" role="3.8">
-    <title>Index of new symbols in 3.8</title>
-    <xi:include href="xml/api-index-3.8.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-10" role="3.10">
-    <title>Index of new symbols in 3.10</title>
-    <xi:include href="xml/api-index-3.10.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-12" role="3.12">
-    <title>Index of new symbols in 3.12</title>
-    <xi:include href="xml/api-index-3.12.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-14" role="3.14">
-    <title>Index of new symbols in 3.14</title>
-    <xi:include href="xml/api-index-3.14.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-16" role="3.16">
-    <title>Index of new symbols in 3.16</title>
-    <xi:include href="xml/api-index-3.16.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-18" role="3.18">
-    <title>Index of new symbols in 3.18</title>
-    <xi:include href="xml/api-index-3.18.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-20" role="3.20">
-    <title>Index of new symbols in 3.20</title>
-    <xi:include href="xml/api-index-3.20.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-22" role="3.22">
-    <title>Index of new symbols in 3.22</title>
-    <xi:include href="xml/api-index-3.22.xml"><xi:fallback /></xi:include>
-  </index>

  <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>

@@ -12,21 +12,7 @@ GDK_WINDOWING_QUARTZ
 GDK_WINDOWING_WAYLAND

 <SUBSECTION>
-GDK_VERSION_3_0
-GDK_VERSION_3_2
-GDK_VERSION_3_4
-GDK_VERSION_3_6
-GDK_VERSION_3_8
-GDK_VERSION_3_10
-GDK_VERSION_3_12
-GDK_VERSION_3_14
-GDK_VERSION_3_16
-GDK_VERSION_3_18
-GDK_VERSION_3_20
-GDK_VERSION_3_22
-GDK_VERSION_3_90
-GDK_VERSION_3_92
-GDK_VERSION_3_94
+GDK_VERSION_4_0
 GDK_VERSION_MIN_REQUIRED
 GDK_VERSION_MAX_ALLOWED
 GDK_DISABLE_DEPRECATION_WARNINGS
@@ -61,57 +47,21 @@ gdk_scroll_direction_get_type
 gdk_setting_action_get_type
 gdk_status_get_type
 gdk_visibility_state_get_type
-gdk_window_attributes_type_get_type
-gdk_window_edge_get_type
-gdk_window_hints_get_type
-gdk_window_state_get_type
-gdk_window_type_get_type
-gdk_window_type_hint_get_type
+gdk_surface_attributes_type_get_type
+gdk_surface_edge_get_type
+gdk_surface_hints_get_type
+gdk_surface_state_get_type
+gdk_surface_type_get_type
+gdk_surface_type_hint_get_type
 gdk_wm_decoration_get_type
 gdk_wm_function_get_type
-GDK_AVAILABLE_IN_3_0
-GDK_AVAILABLE_IN_3_10
-GDK_AVAILABLE_IN_3_12
-GDK_AVAILABLE_IN_3_14
-GDK_AVAILABLE_IN_3_16
-GDK_AVAILABLE_IN_3_18
-GDK_AVAILABLE_IN_3_2
-GDK_AVAILABLE_IN_3_20
-GDK_AVAILABLE_IN_3_22
-GDK_AVAILABLE_IN_3_4
-GDK_AVAILABLE_IN_3_6
-GDK_AVAILABLE_IN_3_8
-GDK_AVAILABLE_IN_3_90
-GDK_AVAILABLE_IN_3_92
-GDK_AVAILABLE_IN_3_94
+GDK_AVAILABLE_IN_4_0
 GDK_AVAILABLE_IN_ALL
 GDK_UNAVAILABLE
 GDK_DEPRECATED
 GDK_DEPRECATED_FOR
-GDK_DEPRECATED_IN_3_0
-GDK_DEPRECATED_IN_3_0_FOR
-GDK_DEPRECATED_IN_3_10
-GDK_DEPRECATED_IN_3_10_FOR
-GDK_DEPRECATED_IN_3_12
-GDK_DEPRECATED_IN_3_12_FOR
-GDK_DEPRECATED_IN_3_14
-GDK_DEPRECATED_IN_3_14_FOR
-GDK_DEPRECATED_IN_3_16
-GDK_DEPRECATED_IN_3_16_FOR
-GDK_DEPRECATED_IN_3_18
-GDK_DEPRECATED_IN_3_18_FOR
-GDK_DEPRECATED_IN_3_2
-GDK_DEPRECATED_IN_3_20
-GDK_DEPRECATED_IN_3_20_FOR
-GDK_DEPRECATED_IN_3_22
-GDK_DEPRECATED_IN_3_22_FOR
-GDK_DEPRECATED_IN_3_2_FOR
-GDK_DEPRECATED_IN_3_4
-GDK_DEPRECATED_IN_3_4_FOR
-GDK_DEPRECATED_IN_3_6
-GDK_DEPRECATED_IN_3_6_FOR
-GDK_DEPRECATED_IN_3_8
-GDK_DEPRECATED_IN_3_8_FOR
+GDK_DEPRECATED_IN_4_0
+GDK_DEPRECATED_IN_4_0_FOR
 GDK_VERSION_CUR_STABLE
 GDK_VERSION_PREV_STABLE
 </SECTION>
@@ -135,10 +85,6 @@ gdk_display_put_event
 gdk_display_has_pending
 gdk_display_is_rgba
 gdk_display_is_composited
-gdk_display_supports_cursor_color
-gdk_display_supports_cursor_alpha
-gdk_display_get_default_cursor_size
-gdk_display_get_maximal_cursor_size
 gdk_display_get_default_group
 gdk_display_supports_shapes
 gdk_display_supports_input_shapes
@@ -150,7 +96,7 @@ gdk_display_get_n_monitors
 gdk_display_get_monitor
 gdk_display_get_primary_monitor
 gdk_display_get_monitor_at_point
-gdk_display_get_monitor_at_window
+gdk_display_get_monitor_at_surface
 gdk_display_get_clipboard
 gdk_display_get_primary_clipboard
 gdk_display_get_setting
@@ -221,193 +167,174 @@ gdk_rgba_get_type
 </SECTION>

 <SECTION>
-<TITLE>Windows</TITLE>
-<FILE>windows</FILE>
-GdkWindow
-GdkWindowType
-GdkWindowClass
-GdkWindowHints
+<TITLE>GdkSurface</TITLE>
+<FILE>gdksurface</FILE>
+GdkSurface
+GdkSurfaceType
+GdkSurfaceClass
+GdkSurfaceHints
 GdkGeometry
 GdkGravity
 GdkAnchorHints
-GdkWindowEdge
-GdkWindowTypeHint
-GdkWindowState
-gdk_window_new_toplevel
-gdk_window_new_popup
-gdk_window_new_temp
-gdk_window_new_child
-gdk_window_destroy
-gdk_window_get_window_type
-gdk_window_get_display
-gdk_window_show
-gdk_window_show_unraised
-gdk_window_hide
-gdk_window_is_destroyed
-gdk_window_is_visible
-gdk_window_is_viewable
-gdk_window_is_input_only
-gdk_window_is_shaped
-gdk_window_get_state
-gdk_window_withdraw
-gdk_window_iconify
-gdk_window_deiconify
-gdk_window_stick
-gdk_window_unstick
-gdk_window_maximize
-gdk_window_unmaximize
-gdk_window_fullscreen
-gdk_window_fullscreen_on_monitor
-gdk_window_unfullscreen
+GdkSurfaceEdge
+GdkSurfaceTypeHint
+GdkSurfaceState
+gdk_surface_new_toplevel
+gdk_surface_new_popup
+gdk_surface_new_temp
+gdk_surface_new_child
+gdk_surface_destroy
+gdk_surface_get_surface_type
+gdk_surface_get_display
+gdk_surface_show
+gdk_surface_show_unraised
+gdk_surface_hide
+gdk_surface_is_destroyed
+gdk_surface_is_visible
+gdk_surface_is_viewable
+gdk_surface_is_input_only
+gdk_surface_get_state
+gdk_surface_withdraw
+gdk_surface_iconify
+gdk_surface_deiconify
+gdk_surface_stick
+gdk_surface_unstick
+gdk_surface_maximize
+gdk_surface_unmaximize
+gdk_surface_fullscreen
+gdk_surface_fullscreen_on_monitor
+gdk_surface_unfullscreen
 GdkFullscreenMode
-gdk_window_get_fullscreen_mode
-gdk_window_set_fullscreen_mode
-gdk_window_set_keep_above
-gdk_window_set_keep_below
-gdk_window_set_opacity
-gdk_window_set_pass_through
-gdk_window_get_pass_through
-gdk_window_move
-gdk_window_resize
-gdk_window_move_resize
-gdk_window_scroll
-gdk_window_move_region
-gdk_window_has_native
-gdk_window_raise
-gdk_window_lower
-gdk_window_restack
-gdk_window_focus
-gdk_window_register_dnd
-gdk_window_begin_resize_drag
-gdk_window_begin_resize_drag_for_device
-gdk_window_begin_move_drag
-gdk_window_begin_move_drag_for_device
-gdk_window_show_window_menu
-gdk_window_constrain_size
-gdk_window_beep
-gdk_window_get_scale_factor
-gdk_window_set_opaque_region
-gdk_window_create_gl_context
-gdk_window_create_vulkan_context
+gdk_surface_get_fullscreen_mode
+gdk_surface_set_fullscreen_mode
+gdk_surface_set_keep_above
+gdk_surface_set_keep_below
+gdk_surface_set_opacity
+gdk_surface_set_pass_through
+gdk_surface_get_pass_through
+gdk_surface_move
+gdk_surface_resize
+gdk_surface_move_resize
+gdk_surface_has_native
+gdk_surface_raise
+gdk_surface_lower
+gdk_surface_restack
+gdk_surface_focus
+gdk_surface_register_dnd
+gdk_surface_begin_resize_drag
+gdk_surface_begin_resize_drag_for_device
+gdk_surface_begin_move_drag
+gdk_surface_begin_move_drag_for_device
+gdk_surface_show_window_menu
+gdk_surface_constrain_size
+gdk_surface_beep
+gdk_surface_get_scale_factor
+gdk_surface_set_opaque_region
+gdk_surface_create_gl_context
+gdk_surface_create_vulkan_context

 <SUBSECTION>
-gdk_window_get_clip_region
-gdk_window_begin_draw_frame
-gdk_window_end_draw_frame
-gdk_window_get_visible_region
+gdk_surface_invalidate_rect
+gdk_surface_invalidate_region
+gdk_surface_queue_expose
+gdk_surface_freeze_updates
+gdk_surface_thaw_updates
+gdk_surface_get_frame_clock

 <SUBSECTION>
-gdk_window_invalidate_rect
-gdk_window_invalidate_region
-GdkWindowChildFunc
-gdk_window_invalidate_maybe_recurse
-gdk_window_get_update_area
-gdk_window_freeze_updates
-gdk_window_thaw_updates
-gdk_window_get_frame_clock
-
-<SUBSECTION>
-gdk_window_set_user_data
-gdk_window_set_accept_focus
-gdk_window_get_accept_focus
-gdk_window_set_focus_on_map
-gdk_window_get_focus_on_map
-gdk_window_add_filter
-gdk_window_remove_filter
-GdkFilterFunc
-GdkFilterReturn
-GdkXEvent
-gdk_window_shape_combine_region
-gdk_window_set_child_shapes
-gdk_window_merge_child_shapes
-gdk_window_input_shape_combine_region
-gdk_window_set_child_input_shapes
-gdk_window_merge_child_input_shapes
-gdk_window_set_title
+gdk_surface_set_user_data
+gdk_surface_set_accept_focus
+gdk_surface_get_accept_focus
+gdk_surface_set_focus_on_map
+gdk_surface_get_focus_on_map
+gdk_surface_input_shape_combine_region
+gdk_surface_set_child_input_shapes
+gdk_surface_merge_child_input_shapes
+gdk_surface_set_title
 GDK_PARENT_RELATIVE
-gdk_window_set_cursor
-gdk_window_get_cursor
-gdk_window_get_user_data
-gdk_window_get_geometry
-gdk_window_set_geometry_hints
-gdk_window_get_width
-gdk_window_get_height
-gdk_window_set_icon_list
-gdk_window_set_modal_hint
-gdk_window_get_modal_hint
-gdk_window_set_type_hint
-gdk_window_get_type_hint
-gdk_window_set_shadow_width
-gdk_window_set_skip_taskbar_hint
-gdk_window_set_skip_pager_hint
-gdk_window_set_urgency_hint
-gdk_window_get_position
-gdk_window_get_root_origin
-gdk_window_get_frame_extents
-gdk_window_get_origin
-gdk_window_get_root_coords
-gdk_window_get_device_position
-gdk_window_get_device_position_double
+gdk_surface_set_cursor
+gdk_surface_get_cursor
+gdk_surface_get_user_data
+gdk_surface_get_geometry
+gdk_surface_set_geometry_hints
+gdk_surface_get_width
+gdk_surface_get_height
+gdk_surface_set_icon_list
+gdk_surface_set_modal_hint
+gdk_surface_get_modal_hint
+gdk_surface_set_type_hint
+gdk_surface_get_type_hint
+gdk_surface_set_shadow_width
+gdk_surface_set_skip_taskbar_hint
+gdk_surface_set_skip_pager_hint
+gdk_surface_set_urgency_hint
+gdk_surface_get_position
+gdk_surface_get_root_origin
+gdk_surface_get_frame_extents
+gdk_surface_get_origin
+gdk_surface_get_root_coords
+gdk_surface_get_device_position
+gdk_surface_get_device_position_double
 GdkModifierType
 GdkModifierIntent
-gdk_window_get_parent
-gdk_window_get_toplevel
-gdk_window_get_children
-gdk_window_get_children_with_user_data
-gdk_window_peek_children
-gdk_window_get_events
-gdk_window_set_events
-gdk_window_set_icon_name
-gdk_window_set_transient_for
-gdk_window_set_role
-gdk_window_set_startup_id
-gdk_window_set_group
-gdk_window_get_group
-gdk_window_set_decorations
-gdk_window_get_decorations
+gdk_surface_get_parent
+gdk_surface_get_toplevel
+gdk_surface_get_children
+gdk_surface_get_children_with_user_data
+gdk_surface_peek_children
+gdk_surface_get_events
+gdk_surface_set_events
+gdk_surface_set_icon_name
+gdk_surface_set_transient_for
+gdk_surface_set_role
+gdk_surface_set_startup_id
+gdk_surface_set_group
+gdk_surface_get_group
+gdk_surface_set_decorations
+gdk_surface_get_decorations
 GdkWMDecoration
-gdk_window_set_functions
+gdk_surface_set_functions
 GdkWMFunction

 <SUBSECTION>
-gdk_window_get_support_multidevice
-gdk_window_set_support_multidevice
-gdk_window_get_device_cursor
-gdk_window_set_device_cursor
-gdk_window_get_device_events
-gdk_window_set_device_events
+gdk_surface_get_support_multidevice
+gdk_surface_set_support_multidevice
+gdk_surface_get_device_cursor
+gdk_surface_set_device_cursor
+gdk_surface_get_device_events
+gdk_surface_set_device_events

 <SUBSECTION>
-gdk_window_coords_from_parent
-gdk_window_coords_to_parent
+gdk_surface_coords_from_parent
+gdk_surface_coords_to_parent

 <SUBSECTION Standard>
-GDK_WINDOW
-GDK_WINDOW_GET_CLASS
-GDK_TYPE_WINDOW
-GDK_IS_WINDOW
-GDK_WINDOW_CLASS
-GDK_IS_WINDOW_CLASS
+GDK_SURFACE
+GDK_SURFACE_GET_CLASS
+GDK_TYPE_SURFACE
+GDK_IS_SURFACE
+GDK_SURFACE_CLASS
+GDK_IS_SURFACE_CLASS
 GDK_TYPE_FILTER_RETURN
 GDK_TYPE_GRAVITY
 GDK_TYPE_MODIFIER_TYPE
-GDK_TYPE_WINDOW_ATTRIBUTES_TYPE
-GDK_TYPE_WINDOW_EDGE
-GDK_TYPE_WINDOW_HINTS
-GDK_TYPE_WINDOW_TYPE
-GDK_TYPE_WINDOW_TYPE_HINT
+GDK_TYPE_SURFACE_ATTRIBUTES_TYPE
+GDK_TYPE_SURFACE_EDGE
+GDK_TYPE_SURFACE_HINTS
+GDK_TYPE_SURFACE_TYPE
+GDK_TYPE_SURFACE_TYPE_HINT
 GDK_TYPE_WM_DECORATION
 GDK_TYPE_WM_FUNCTION
-GDK_TYPE_WINDOW_STATE
+GDK_TYPE_SURFACE_STATE

 <SUBSECTION Private>
-gdk_window_get_type
-gdk_window_window_class_get_type
-GdkWindowClass
-GdkWindowImpl
-GdkWindowImplClass
-GdkWindowRedirect
-gdk_window_impl_get_type
+gdk_surface_get_type
+gdk_surface_window_class_get_type
+GdkSurfaceClass
+GdkSurfaceImpl
+GdkSurfaceImplClass
+GdkSurfaceRedirect
+gdk_surface_impl_get_type
 gdk_fullscreen_mode_get_type
 </SECTION>

@@ -442,11 +369,16 @@ gdk_content_formats_union_deserialize_mime_types
 <SUBSECTION>
 GdkContentFormatsBuilder
 gdk_content_formats_builder_new
-gdk_content_formats_builder_free
+gdk_content_formats_builder_free_to_formats
 gdk_content_formats_builder_add_formats
 gdk_content_formats_builder_add_gtype
 gdk_content_formats_builder_add_mime_type

+<SUBSECTION>
+gdk_content_formats_builder_ref
+gdk_content_formats_builder_unref
+gdk_content_formats_builder_to_formats
+
 <SUBSECTION Private>
 GDK_TYPE_FILE_LIST
 gdk_file_list_get_type
@@ -471,16 +403,13 @@ gdk_pango_layout_line_get_clip_region
 <SECTION>
 <TITLE>Cairo Interaction</TITLE>
 <FILE>cairo_interaction</FILE>
-gdk_window_create_similar_surface
-gdk_window_create_similar_image_surface
+gdk_surface_create_similar_surface
 gdk_cairo_get_clip_rectangle
-gdk_cairo_get_drawing_context
 gdk_cairo_set_source_rgba
 gdk_cairo_set_source_pixbuf
 gdk_cairo_rectangle
 gdk_cairo_region
 gdk_cairo_region_create_from_surface
-gdk_cairo_surface_create_from_pixbuf
 gdk_cairo_draw_from_gl
 gdk_cairo_surface_upload_to_gl
 </SECTION>
@@ -501,22 +430,6 @@ gdk_rectangle_contains_point
 gdk_rectangle_get_type
 </SECTION>

-<SECTION>
-<TITLE>Threads</TITLE>
-<FILE>threads</FILE>
-GDK_THREADS_ENTER
-GDK_THREADS_LEAVE
-gdk_threads_init
-gdk_threads_enter
-gdk_threads_leave
-gdk_threads_add_idle
-gdk_threads_add_idle_full
-gdk_threads_add_timeout
-gdk_threads_add_timeout_full
-gdk_threads_add_timeout_seconds
-gdk_threads_add_timeout_seconds_full
-</SECTION>
-
 <SECTION>
 <TITLE>Keyboard Handling</TITLE>
 <FILE>keys</FILE>
@@ -606,15 +519,15 @@ gdk_device_ungrab
 gdk_device_get_state
 gdk_device_get_position
 gdk_device_get_position_double
-gdk_device_get_window_at_position
-gdk_device_get_window_at_position_double
+gdk_device_get_surface_at_position
+gdk_device_get_surface_at_position_double
 gdk_device_get_history
 gdk_device_free_history
 GdkTimeCoord
 gdk_device_get_axis
 gdk_device_list_axes
 gdk_device_get_axis_value
-gdk_device_get_last_event_window
+gdk_device_get_last_event_surface

 <SUBSECTION>
 gdk_device_tool_get_serial
@@ -635,6 +548,7 @@ GDK_IS_DEVICE
 GDK_IS_DEVICE_CLASS
 GDK_TYPE_DEVICE
 GDK_DEVICE_TOOL
+GDK_IS_DEVICE_TOOL

 <SUBSECTION Private>
 GdkDeviceClass
@@ -713,7 +627,6 @@ GDK_BUTTON_SECONDARY
 <SUBSECTION>
 gdk_event_new
 gdk_event_copy
-gdk_event_free
 gdk_event_get_axes
 gdk_event_get_button
 gdk_event_get_click_count
@@ -726,7 +639,7 @@ gdk_event_get_scroll_deltas
 gdk_event_is_scroll_stop_event
 gdk_event_get_state
 gdk_event_get_time
-gdk_event_get_window
+gdk_event_get_surface
 gdk_event_get_event_type
 GdkEventSequence
 gdk_event_get_event_sequence
@@ -741,8 +654,8 @@ gdk_event_get_crossing_detail
 gdk_event_get_crossing_mode
 gdk_event_get_drag_context
 gdk_event_get_focus_in
-gdk_event_get_grab_window
-gdk_event_get_history
+gdk_event_get_grab_surface
+gdk_event_get_motion_history
 gdk_event_get_key_group
 gdk_event_get_key_is_modifier
 gdk_event_get_pad_axis_value
@@ -779,20 +692,49 @@ GDK_TYPE_EVENT_TYPE
 GDK_TYPE_CROSSING_MODE
 GDK_TYPE_SCROLL_DIRECTION
 GDK_TYPE_NOTIFY_TYPE
+GDK_IS_EVENT
 gdk_event_get_type
 </SECTION>

+<SECTION>
+<FILE>gdkpaintable</FILE>
+<TITLE>GdkPaintable/TITLE>
+GdkPaintable
+GdkPaintableFlags
+gdk_paintable_get_current_image
+gdk_paintable_snapshot
+gdk_paintable_get_flags
+gdk_paintable_get_intrinsic_width
+gdk_paintable_get_intrinsic_height
+gdk_paintable_get_intrinsic_aspect_ratio
+gdk_paintable_compute_concrete_size
+
+<SUBSECTION>
+gdk_paintable_invalidate_contents
+gdk_paintable_invalidate_size
+gdk_paintable_new_empty
+
+<SUBSECTION Private>
+GDK_TYPE_PAINTABLE
+gdk_paintable_get_type
+</SECTION>
+
 <SECTION>
 <TITLE>Textures</TITLE>
 <FILE>textures</FILE>
 GdkTexture
-gdk_texture_new_for_data
 gdk_texture_new_for_pixbuf
 gdk_texture_new_from_resource
 gdk_texture_new_from_file
 gdk_texture_get_width
 gdk_texture_get_height
 gdk_texture_download
+gdk_texture_save_to_png
+GdkMemoryFormat
+GDK_MEMORY_DEFAULT
+gdk_memory_texture_new
+gdk_gl_texture_new
+gdk_gl_texture_release

 <SUBSECTION Standard>
 GdkTextureClass
@@ -800,6 +742,16 @@ gdk_texture_get_type
 GDK_TYPE_TEXTURE
 GDK_IS_TEXTURE
 GDK_TEXTURE
+GdkGLTextureClass
+gdk_gl_texture_get_type
+GDK_TYPE_GL_TEXTURE
+GDK_IS_GL_TEXTURE
+GDK_GL_TEXTURE
+GdkMemoryTextureClass
+gdk_memory_texture_get_type
+GDK_TYPE_MEMORY_TEXTURE
+GDK_IS_MEMORY_TEXTURE
+GDK_MEMORY_TEXTURE
 </SECTION>

 <SECTION>
@@ -817,6 +769,7 @@ gdk_cursor_get_hotspot_y
 <SUBSECTION Standard>
 GDK_TYPE_CURSOR
 GDK_CURSOR
+GDK_IS_CURSOR

 <SUBSECTION Private>
 gdk_cursor_get_type
@@ -828,13 +781,11 @@ gdk_cursor_get_type
 <FILE>dnd</FILE>
 GdkDragContext
 GdkDragCancelReason
-gdk_drop_reply
 gdk_drag_drop_done
 gdk_drag_begin
 gdk_drop_finish
 GdkDragAction
 gdk_drag_status
-gdk_drag_drop_succeeded

 gdk_drag_context_get_display
 gdk_drag_context_get_actions
@@ -842,9 +793,9 @@ gdk_drag_context_get_suggested_action
 gdk_drag_context_get_selected_action
 gdk_drag_context_get_formats
 gdk_drag_context_get_device
-gdk_drag_context_get_source_window
-gdk_drag_context_get_dest_window
-gdk_drag_context_get_drag_window
+gdk_drag_context_get_source_surface
+gdk_drag_context_get_dest_surface
+gdk_drag_context_get_drag_surface
 gdk_drag_context_set_hotspot

 <SUBSECTION Standard>
@@ -866,7 +817,7 @@ gdk_drag_context_get_type
 <INCLUDE>gdk/gdkx.h</INCLUDE>
 <TITLE>X Window System Interaction</TITLE>
 <FILE>x_interaction</FILE>
-GDK_WINDOW_XID
+GDK_SURFACE_XID
 GDK_DISPLAY_XDISPLAY
 GDK_POINTER_TO_XID
 GDK_XID_TO_POINTER
@@ -891,7 +842,7 @@ gdk_x11_display_error_trap_push
 gdk_x11_display_error_trap_pop
 gdk_x11_display_error_trap_pop_ignored
 gdk_x11_display_set_cursor_theme
-gdk_x11_display_set_window_scale
+gdk_x11_display_set_surface_scale
 gdk_x11_display_get_glx_version
 gdk_x11_register_standard_event_type
 gdk_x11_screen_get_screen_number
@@ -902,17 +853,16 @@ gdk_x11_screen_lookup_visual
 gdk_x11_screen_supports_net_wm_hint
 gdk_x11_screen_get_number_of_desktops
 gdk_x11_screen_get_current_desktop
-gdk_x11_window_foreign_new_for_display
-gdk_x11_window_lookup_for_display
-gdk_x11_window_get_xid
-gdk_x11_window_set_theme_variant
-gdk_x11_window_set_user_time
-gdk_x11_window_move_to_current_desktop
-gdk_x11_window_move_to_desktop
-gdk_x11_window_get_desktop
-gdk_x11_window_set_utf8_property
-gdk_x11_window_set_frame_extents
-gdk_x11_window_set_frame_sync_enabled
+gdk_x11_surface_foreign_new_for_display
+gdk_x11_surface_lookup_for_display
+gdk_x11_surface_get_xid
+gdk_x11_surface_set_theme_variant
+gdk_x11_surface_set_user_time
+gdk_x11_surface_move_to_current_desktop
+gdk_x11_surface_move_to_desktop
+gdk_x11_surface_get_desktop
+gdk_x11_surface_set_utf8_property
+gdk_x11_surface_set_frame_sync_enabled
 gdk_x11_keymap_get_group_for_state
 gdk_x11_keymap_key_is_modifier
 gdk_x11_visual_get_xvisual
@@ -1005,12 +955,12 @@ GDK_X11_VISUAL_CLASS
 GDK_IS_X11_VISUAL
 GDK_IS_X11_VISUAL_CLASS
 GDK_X11_VISUAL_GET_CLASS
-GDK_TYPE_X11_WINDOW
-GDK_X11_WINDOW
-GDK_X11_WINDOW_CLASS
-GDK_IS_X11_WINDOW
-GDK_IS_X11_WINDOW_CLASS
-GDK_X11_WINDOW_GET_CLASS
+GDK_TYPE_X11_SURFACE
+GDK_X11_SURFACE
+GDK_X11_SURFACE_CLASS
+GDK_IS_X11_SURFACE
+GDK_IS_X11_SURFACE_CLASS
+GDK_X11_SURFACE_GET_CLASS

 <SUBSECTION Private>
 gdk_x11_app_launch_context_get_type
@@ -1027,8 +977,8 @@ gdk_x11_drag_context_get_type
 gdk_x11_keymap_get_type
 gdk_x11_screen_get_type
 gdk_x11_visual_get_type
-gdk_x11_window_get_type
-gdk_window_impl_x11_get_type
+gdk_x11_surface_get_type
+gdk_surface_impl_x11_get_type
 </SECTION>

 <SECTION>
@@ -1041,13 +991,14 @@ gdk_wayland_device_get_wl_pointer
 gdk_wayland_device_get_wl_seat
 gdk_wayland_display_get_wl_compositor
 gdk_wayland_display_get_wl_display
-gdk_wayland_window_new_subsurface
-gdk_wayland_window_get_wl_surface
-gdk_wayland_window_set_use_custom_surface
-GdkWaylandWindowExported
-gdk_wayland_window_export_handle
-gdk_wayland_window_unexport_handle
-gdk_wayland_window_set_transient_for_exported
+gdk_wayland_display_query_registry
+gdk_wayland_surface_new_subsurface
+gdk_wayland_surface_get_wl_surface
+gdk_wayland_surface_set_use_custom_surface
+GdkWaylandSurfaceExported
+gdk_wayland_surface_export_handle
+gdk_wayland_surface_unexport_handle
+gdk_wayland_surface_set_transient_for_exported

 <SUBSECTION Standard>
 GDK_TYPE_WAYLAND_DEVICE
@@ -1068,18 +1019,18 @@ GDK_WAYLAND_DISPLAY_MANAGER_CLASS
 GDK_WAYLAND_DISPLAY_MANAGER_GET_CLASS
 GDK_IS_WAYLAND_DISPLAY_MANAGER
 GDK_IS_WAYLAND_DISPLAY_MANAGER_CLASS
-GDK_TYPE_WAYLAND_WINDOW
-GDK_WAYLAND_WINDOW
-GDK_WAYLAND_WINDOW_CLASS
-GDK_WAYLAND_WINDOW_GET_CLASS
-GDK_IS_WAYLAND_WINDOW
-GDK_IS_WAYLAND_WINDOW_CLASS
+GDK_TYPE_WAYLAND_SURFACE
+GDK_WAYLAND_SURFACE
+GDK_WAYLAND_SURFACE_CLASS
+GDK_WAYLAND_SURFACE_GET_CLASS
+GDK_IS_WAYLAND_SURFACE
+GDK_IS_WAYLAND_SURFACE_CLASS

 <SUBSECTION Private>
 gdk_wayland_device_get_type
 gdk_wayland_display_get_type
 gdk_wayland_display_manager_get_type
-gdk_wayland_window_get_type
+gdk_wayland_surface_get_type

 </SECTION>

@@ -1154,7 +1105,11 @@ gdk_frame_timings_get_type
 <FILE>gdkdrawcontext</FILE>
 GdkDrawContext
 gdk_draw_context_get_display
-gdk_draw_context_get_window
+gdk_draw_context_get_surface
+gdk_draw_context_begin_frame
+gdk_draw_context_end_frame
+gdk_draw_context_is_in_frame
+gdk_draw_context_get_frame_region

 <SUBSECTION Standard>
 GDK_DRAW_CONTEXT
@@ -1170,7 +1125,7 @@ gdk_draw_context_get_type
 <FILE>gdkglcontext</FILE>
 GdkGLContext
 gdk_gl_context_get_display
-gdk_gl_context_get_window
+gdk_gl_context_get_surface
 gdk_gl_context_get_shared_context
 gdk_gl_context_get_version

@@ -1188,7 +1143,6 @@ gdk_gl_context_is_legacy
 <SUBSECTION>
 GdkGLError
 gdk_gl_context_realize
-gdk_gl_context_get_damage
 gdk_gl_context_make_current
 gdk_gl_context_get_current
 gdk_gl_context_clear_current
@@ -1233,20 +1187,12 @@ GDK_IS_MONITOR
 </SECTION>

 <SECTION>
-<FILE>gdkdrawingcontext</FILE>
-GdkDrawingContext
-gdk_drawing_context_get_window
-gdk_drawing_context_get_clip
-gdk_drawing_context_get_cairo_context
-gdk_drawing_context_is_valid
-gdk_drawing_context_get_paint_context
+<FILE>gdkcairocontext</FILE>
+GdkCairoContext
+gdk_cairo_context_cairo_create

 <SUBSECTION Standard>
-gdk_drawing_context_get_type
-GdkDrawingContextClass
-GDK_TYPE_DRAWING_CONTEXT
-GDK_DRAWING_CONTEXT
-GDK_IS_DRAWING_CONTEXT
+gdk_cairo_context_get_type
 </SECTION>

 <SECTION>
@@ -1317,6 +1263,8 @@ gdk_content_provider_get_value
 GDK_CONTENT_PROVIDER
 GDK_CONTENT_PROVIDER_CLASS
 GDK_CONTENT_PROVIDER_GET_CLASS
+GDK_IS_CONTENT_PROVIDER
+GDK_IS_CONTENT_PROVIDER_CLASS
 GdkContentProviderClass
 gdk_content_provider_get_type
 </SECTION>
@@ -1376,3 +1324,4 @@ GDK_CONTENT_DESERIALIZER
 GDK_IS_CONTENT_DESERIALIZER
 gdk_content_deserializer_get_type
 </SECTION>
+
@@ -1,18 +1,26 @@
 gdk_app_launch_context_get_type
+gdk_clipboard_get_type
+gdk_content_deserializer_get_type
+gdk_content_formats_get_type
+gdk_content_serializer_get_type
 gdk_cursor_get_type
 gdk_device_get_type
 gdk_device_pad_get_type
+gdk_device_tool_get_type
 gdk_display_get_type
 gdk_display_manager_get_type
 gdk_drag_context_get_type
-gdk_drawing_context_get_type
+gdk_event_get_type
 gdk_frame_clock_get_type
 gdk_gl_context_get_type
+gdk_gl_texture_get_type
 gdk_keymap_get_type
+gdk_memory_texture_get_type
 gdk_monitor_get_type
+gdk_paintable_get_type
+gdk_rgba_get_type
 gdk_seat_get_type
-gdk_window_get_type
-gdk_content_serializer_get_type
-gdk_content_deserializer_get_type
-gdk_clipboard_get_type
-gdk_content_formats_get_type
+gdk_snapshot_get_type
+gdk_surface_get_type
+gdk_texture_get_type
+gdk_vulkan_context_get_type
--- a/Show More
+++ b/Show More