Cut down on type-checking overhead

We *know* what the parent class is. There is
no point in checking every time we want to
chain up. We only do this because the
foo_parent_class that the G_DEFINE_TYPE macro
provides for us is a generic pointer. And that
is just because we don't have the C name for
the parent type available there.

Just cast things, and avoid taking type system
locks.

.gitlab-ci.yml

@@ -25,7 +25,7 @@ variables:
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
   FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v36"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v38"
   FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
 
 .only-default:

.gitlab-ci/README.md

@@ -14,6 +14,9 @@ Each Docker image has a tag composed of two parts:
 See the [container registry][registry] for the available images for each
 branch, as well as their available versions.
 
+Note that using `latest` as version number will overwrite the most
+recently uploaded image in the registry.
+
 ### Checklist for Updating a CI image
 
  - [ ] Update the `${image}.Dockerfile` file with the dependencies

.gitlab-ci/fedora.Dockerfile

@@ -1,4 +1,4 @@
-FROM fedora:34
+FROM fedora:36
 
 RUN dnf -y install \
     adwaita-icon-theme \
@@ -87,7 +87,6 @@ RUN dnf -y install \
     python3-wheel \
     redhat-rpm-config \
     sassc \
-    systemtap-sdt-devel \
     vulkan-devel \
     wayland-devel \
     wayland-protocols-devel \

NEWS

@@ -1,3 +1,153 @@
+Overview of Changes in 4.7.0, 07-05-2022
+========================================
+
+* GtkTextView:
+ - Reduce overdraws
+
+* GtkViewport:
+ - Default scroll-to-focus to TRUE
+
+* GtkText:
+ - Stop blinking when we lose focus
+
+* GtkSearchEntry:
+ - Make search delay configurable
+
+* GtkPopoverMenu:
+ - Fix RTL positioning of buttons
+
+* GtkLabel:
+ - Fix focus keynav with links
+
+* GtkFileChooser:
+ - Prevent undesirable completion popups
+ - Fix a corner case in save mode
+ - Keep the portal filechooser alive long enough
+
+* GtkCheckButton:
+ - Allow setting a custom child
+
+* GtkEditableLabel:
+ - Make the :editing property writable
+
+* GtkColumnView:
+ - Various optimizations to improve scrolling performance
+
+* GtkTreeStore:
+ - Allow populating tree stores from ui files
+
+* GtkBoxLayout:
+ - Avoid infinite loops
+
+* CSS:
+ - Optimize reordering within the same parent
+
+* Emoji:
+ - Update to CLDR v40 / Unicode 14
+ - Add more locales
+
+* Input:
+ - Add scroll unit handling
+ - Handle display changes in GtkIMMultiContext
+ - Always populate GDK_AXIS_X/Y in event history
+ - Don't crash for large compose tables
+
+* Accessibility:
+ - Fix a crash at start when orca is running
+
+* Theme:
+ - Refresh icons
+ - Fix selection in vertical spin buttons
+ - Fix selection in editable labels
+
+* gdk:
+ - Optimize pixel format conversions
+ - Use EGL_KHR_swap_buffers_with_damage for NVidia
+
+* gsk:
+ - Handle large viewports
+ - Prepare texture libraries for glyphy rendering
+ - Don't leak big glyphs in the glyph cache
+ - Align offscreen rendering with th pixel grid
+ - Check for half-float support before using it
+
+* Wayland:
+ - Use xdg-activation protocol
+ - Fix text caret coordinates
+ - Fix on-screen keyboard activation
+
+* MacOS:
+ - Fix sluggish and reversed scrolling
+ - Improve monitor detection
+ - Event handling fixes
+ - Fix keyboard input on popovers
+ - Support OpenGL-based video playback
+ - Suport fullscreen
+ - Improve native filechoooser size allocation
+ - Use CALayer and IOSurface for rendering
+ - Use a per-monitor CVDisplayLink
+ - Fix kinetic scrolling
+ - Improve window placement
+ - Improve multi-monitor handling
+ - Start applications in the foreground
+ - Fix cursor blink time
+
+* Windows:
+ - Fix preedit window placement on HiDPI
+
+* Tools:
+ - gtk4-builder-tool: Don't require a display for all commands
+ - gtk4-builder-tool: Add a screenshot command
+ - gtk4-node-editor: Install this utility
+
+* Debugging:
+ - inspector: Show more application data
+ - inspector: Allow viewing PangoAttrList properties
+
+* Documentation:
+ - Use the gtk-builder-tool to generate screenshots
+
+* Build:
+ - Fix cross-compilation
+ - Fix build on aarch64
+ - Fix build with gcc 12
+
+* Translation updates
+ Basque
+ Brazilian Portuguese
+ British English
+ Catalan
+ Chinese (China)
+ Chinese (Taiwan)
+ Croatian
+ Czech
+ Danish
+ Finnish
+ Galician
+ Georgian
+ German
+ Hebrew
+ Hungarian
+ Indonesian
+ Italian
+ Kazakh
+ Korean
+ Latvian
+ Lithuanian
+ Norwegian Bokmål
+ Persian
+ Polish
+ Portuguese
+ Russian
+ Serbian
+ Slovak
+ Slovenian
+ Spanish
+ Swedish
+ Turkish
+ Ukrainian
+
+
 Overview of Changes in 4.6.1, 11-02-2022
 ========================================
 

gdk/broadway/broadway-protocol.h

@@ -354,6 +354,7 @@ typedef struct {
 
 typedef union {
   BroadwayReplyBase base;
+  BroadwayReplySync sync;
   BroadwayReplyEvent event;
   BroadwayReplyQueryMouse query_mouse;
   BroadwayReplyNewSurface new_surface;

gdk/broadway/broadwayd.c

@@ -219,11 +219,7 @@ static void
 client_handle_request (BroadwayClient *client,
                        BroadwayRequest *request)
 {
-  BroadwayReplyNewSurface reply_new_surface;
-  BroadwayReplySync reply_sync;
-  BroadwayReplyQueryMouse reply_query_mouse;
-  BroadwayReplyGrabPointer reply_grab_pointer;
-  BroadwayReplyUngrabPointer reply_ungrab_pointer;
+  BroadwayReply reply;
   guint32 before_serial, now_serial;
   guint32 global_id;
   int fd;
@@ -233,7 +229,7 @@ client_handle_request (BroadwayClient *client,
   switch (request->base.type)
     {
     case BROADWAY_REQUEST_NEW_SURFACE:
-      reply_new_surface.id =
+      reply.new_surface.id =
         broadway_server_new_surface (server, client->id,
                                      request->new_surface.x,
                                      request->new_surface.y,
@@ -241,9 +237,9 @@ client_handle_request (BroadwayClient *client,
                                      request->new_surface.height);
       client->surfaces =
         g_list_prepend (client->surfaces,
-                        GUINT_TO_POINTER (reply_new_surface.id));
+                        GUINT_TO_POINTER (reply.new_surface.id));
 
-      send_reply (client, request, (BroadwayReply *)&reply_new_surface, sizeof (reply_new_surface),
+      send_reply (client, request, &reply, sizeof (reply.new_surface),
                   BROADWAY_REPLY_NEW_SURFACE);
       break;
     case BROADWAY_REQUEST_FLUSH:
@@ -251,7 +247,7 @@ client_handle_request (BroadwayClient *client,
       break;
     case BROADWAY_REQUEST_SYNC:
       broadway_server_flush (server);
-      send_reply (client, request, (BroadwayReply *)&reply_sync, sizeof (reply_sync),
+      send_reply (client, request, &reply, sizeof (reply.sync),
                   BROADWAY_REPLY_SYNC);
       break;
     case BROADWAY_REQUEST_ROUNDTRIP:
@@ -261,11 +257,11 @@ client_handle_request (BroadwayClient *client,
       break;
     case BROADWAY_REQUEST_QUERY_MOUSE:
       broadway_server_query_mouse (server,
-                                   &reply_query_mouse.surface,
-                                   &reply_query_mouse.root_x,
-                                   &reply_query_mouse.root_y,
-                                   &reply_query_mouse.mask);
-      send_reply (client, request, (BroadwayReply *)&reply_query_mouse, sizeof (reply_query_mouse),
+                                   &reply.query_mouse.surface,
+                                   &reply.query_mouse.root_x,
+                                   &reply.query_mouse.root_y,
+                                   &reply.query_mouse.mask);
+      send_reply (client, request, &reply, sizeof (reply.query_mouse),
                   BROADWAY_REPLY_QUERY_MOUSE);
       break;
     case BROADWAY_REQUEST_DESTROY_SURFACE:
@@ -361,21 +357,21 @@ client_handle_request (BroadwayClient *client,
                                            request->move_resize.height);
       break;
     case BROADWAY_REQUEST_GRAB_POINTER:
-      reply_grab_pointer.status =
+      reply.grab_pointer.status =
         broadway_server_grab_pointer (server,
                                       client->id,
                                       request->grab_pointer.id,
                                       request->grab_pointer.owner_events,
                                       request->grab_pointer.event_mask,
                                       request->grab_pointer.time_);
-      send_reply (client, request, (BroadwayReply *)&reply_grab_pointer, sizeof (reply_grab_pointer),
+      send_reply (client, request, &reply, sizeof (reply.grab_pointer),
                   BROADWAY_REPLY_GRAB_POINTER);
       break;
     case BROADWAY_REQUEST_UNGRAB_POINTER:
-      reply_ungrab_pointer.status =
+      reply.ungrab_pointer.status =
         broadway_server_ungrab_pointer (server,
                                         request->ungrab_pointer.time_);
-      send_reply (client, request, (BroadwayReply *)&reply_ungrab_pointer, sizeof (reply_ungrab_pointer),
+      send_reply (client, request, &reply, sizeof (reply.ungrab_pointer),
                   BROADWAY_REPLY_UNGRAB_POINTER);
       break;
     case BROADWAY_REQUEST_FOCUS_SURFACE:

gdk/gdkapplaunchcontext.c

@@ -125,7 +125,7 @@ gdk_app_launch_context_class_init (GdkAppLaunchContextClass *klass)
    * The display that the `GdkAppLaunchContext` is on.
    */
   g_object_class_install_property (gobject_class, PROP_DISPLAY,
-    g_param_spec_object ("display", P_("Display"), P_("Display"),
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 }

gdk/gdkclipboard.c

@@ -357,9 +357,7 @@ gdk_clipboard_class_init (GdkClipboardClass *class)
    * The `GdkDisplay` that the clipboard belongs to.
    */
   properties[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "Display owning this clipboard",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -372,9 +370,7 @@ gdk_clipboard_class_init (GdkClipboardClass *class)
    * The possible formats that the clipboard can provide its data in.
    */
   properties[PROP_FORMATS] =
-    g_param_spec_boxed ("formats",
-                        "Formats",
-                        "The possible formats for data",
+    g_param_spec_boxed ("formats", NULL, NULL,
                         GDK_TYPE_CONTENT_FORMATS,
                         G_PARAM_READABLE |
                         G_PARAM_STATIC_STRINGS |
@@ -386,9 +382,7 @@ gdk_clipboard_class_init (GdkClipboardClass *class)
    * %TRUE if the contents of the clipboard are owned by this process.
    */
   properties[PROP_LOCAL] =
-    g_param_spec_boolean ("local",
-                          "Local",
-                          "If the contents are owned by this process",
+    g_param_spec_boolean ("local", NULL, NULL,
                           TRUE,
                           G_PARAM_READABLE |
                           G_PARAM_STATIC_STRINGS |
@@ -401,9 +395,7 @@ gdk_clipboard_class_init (GdkClipboardClass *class)
    * provided otherwise.
    */
   properties[PROP_CONTENT] =
-    g_param_spec_object ("content",
-                         "Content",
-                         "Provider of the clipboard's content",
+    g_param_spec_object ("content", NULL, NULL,
                          GDK_TYPE_CONTENT_PROVIDER,
                          G_PARAM_READABLE |
                          G_PARAM_STATIC_STRINGS |

gdk/gdkcontentprovider.c

@@ -173,9 +173,7 @@ gdk_content_provider_class_init (GdkContentProviderClass *class)
    * The possible formats that the provider can provide its data in.
    */
   properties[PROP_FORMATS] =
-    g_param_spec_boxed ("formats",
-                        "Formats",
-                        "The possible formats for data",
+    g_param_spec_boxed ("formats", NULL, NULL,
                         GDK_TYPE_CONTENT_FORMATS,
                         G_PARAM_READABLE |
                         G_PARAM_STATIC_STRINGS |
@@ -187,9 +185,7 @@ gdk_content_provider_class_init (GdkContentProviderClass *class)
    * The subset of formats that clipboard managers should store this provider's data in.
    */
   properties[PROP_STORABLE_FORMATS] =
-    g_param_spec_boxed ("storable-formats",
-                        "Storable formats",
-                        "The formats that data should be stored in",
+    g_param_spec_boxed ("storable-formats", NULL, NULL,
                         GDK_TYPE_CONTENT_FORMATS,
                         G_PARAM_READABLE |
                         G_PARAM_STATIC_STRINGS |

gdk/gdkcursor.c

@@ -174,9 +174,7 @@ gdk_cursor_class_init (GdkCursorClass *cursor_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_FALLBACK,
-                                   g_param_spec_object ("fallback",
-                                                        P_("Fallback"),
-                                                        P_("Cursor image to fall back to if this cursor cannot be displayed"),
+                                   g_param_spec_object ("fallback", NULL, NULL,
                                                         GDK_TYPE_CURSOR,
                                                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                         G_PARAM_STATIC_STRINGS));
@@ -188,9 +186,7 @@ gdk_cursor_class_init (GdkCursorClass *cursor_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_HOTSPOT_X,
-                                   g_param_spec_int ("hotspot-x",
-                                                     P_("Hotspot X"),
-                                                     P_("Horizontal offset of the cursor hotspot"),
+                                   g_param_spec_int ("hotspot-x", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));
@@ -202,9 +198,7 @@ gdk_cursor_class_init (GdkCursorClass *cursor_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_HOTSPOT_Y,
-                                   g_param_spec_int ("hotspot-y",
-                                                     P_("Hotspot Y"),
-                                                     P_("Vertical offset of the cursor hotspot"),
+                                   g_param_spec_int ("hotspot-y", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));
@@ -218,9 +212,7 @@ gdk_cursor_class_init (GdkCursorClass *cursor_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_NAME,
-                                   g_param_spec_string ("name",
-                                                        P_("Name"),
-                                                        P_("Name of this cursor"),
+                                   g_param_spec_string ("name", NULL, NULL,
                                                         NULL,
                                                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                         G_PARAM_STATIC_STRINGS));
@@ -234,9 +226,7 @@ gdk_cursor_class_init (GdkCursorClass *cursor_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_TEXTURE,
-                                   g_param_spec_object ("texture",
-                                                        P_("Texture"),
-                                                        P_("The texture displayed by this cursor"),
+                                   g_param_spec_object ("texture", NULL, NULL,
                                                         GDK_TYPE_TEXTURE,
                                                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                         G_PARAM_STATIC_STRINGS));

gdk/gdkdevice.c

@@ -109,9 +109,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * The `GdkDisplay` the `GdkDevice` pertains to.
    */
   device_props[PROP_DISPLAY] =
-      g_param_spec_object ("display",
-                           P_("Device Display"),
-                           P_("Display which the device belongs to"),
+      g_param_spec_object ("display", NULL, NULL,
                            GDK_TYPE_DISPLAY,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -121,9 +119,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * The device name.
    */
   device_props[PROP_NAME] =
-      g_param_spec_string ("name",
-                           P_("Device name"),
-                           P_("Device name"),
+      g_param_spec_string ("name", NULL, NULL,
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                            G_PARAM_STATIC_STRINGS);
@@ -134,9 +130,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * Source type for the device.
    */
   device_props[PROP_SOURCE] =
-      g_param_spec_enum ("source",
-                         P_("Input source"),
-                         P_("Source type for the device"),
+      g_param_spec_enum ("source", NULL, NULL,
                          GDK_TYPE_INPUT_SOURCE,
                          GDK_SOURCE_MOUSE,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
@@ -148,9 +142,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * Whether the device is represented by a cursor on the screen.
    */
   device_props[PROP_HAS_CURSOR] =
-      g_param_spec_boolean ("has-cursor",
-                            P_("Whether the device has a cursor"),
-                            P_("Whether there is a visible cursor following device motion"),
+      g_param_spec_boolean ("has-cursor", NULL, NULL,
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                             G_PARAM_STATIC_STRINGS);
@@ -161,9 +153,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * Number of axes in the device.
    */
   device_props[PROP_N_AXES] =
-      g_param_spec_uint ("n-axes",
-                         P_("Number of axes in the device"),
-                         P_("Number of axes in the device"),
+      g_param_spec_uint ("n-axes", NULL, NULL,
                          0, G_MAXUINT,
                          0,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -176,9 +166,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * See [method@Gdk.Device.get_vendor_id].
    */
   device_props[PROP_VENDOR_ID] =
-      g_param_spec_string ("vendor-id",
-                           P_("Vendor ID"),
-                           P_("Vendor ID"),
+      g_param_spec_string ("vendor-id", NULL, NULL,
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                            G_PARAM_STATIC_STRINGS);
@@ -191,9 +179,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * See [method@Gdk.Device.get_product_id].
    */
   device_props[PROP_PRODUCT_ID] =
-      g_param_spec_string ("product-id",
-                           P_("Product ID"),
-                           P_("Product ID"),
+      g_param_spec_string ("product-id", NULL, NULL,
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                            G_PARAM_STATIC_STRINGS);
@@ -204,9 +190,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * `GdkSeat` of this device.
    */
   device_props[PROP_SEAT] =
-      g_param_spec_object ("seat",
-                           P_("Seat"),
-                           P_("Seat"),
+      g_param_spec_object ("seat", NULL, NULL,
                            GDK_TYPE_SEAT,
                            G_PARAM_READWRITE |
                            G_PARAM_STATIC_STRINGS);
@@ -220,9 +204,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * of touches is unknown.
    */
   device_props[PROP_NUM_TOUCHES] =
-      g_param_spec_uint ("num-touches",
-                         P_("Number of concurrent touches"),
-                         P_("Number of concurrent touches"),
+      g_param_spec_uint ("num-touches", NULL, NULL,
                          0, G_MAXUINT,
                          0,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
@@ -234,9 +216,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * The `GdkDeviceTool` that is currently used with this device.
    */
   device_props[PROP_TOOL] =
-    g_param_spec_object ("tool",
-                         P_("Tool"),
-                         P_("The tool that is currently used with this device"),
+    g_param_spec_object ("tool", NULL, NULL,
                          GDK_TYPE_DEVICE_TOOL,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -248,9 +228,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_DIRECTION] =
-      g_param_spec_enum ("direction",
-                         P_("Direction"),
-                         P_("The direction of the current layout of the keyboard"),
+      g_param_spec_enum ("direction", NULL, NULL,
                          PANGO_TYPE_DIRECTION, PANGO_DIRECTION_NEUTRAL,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -262,9 +240,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_HAS_BIDI_LAYOUTS] =
-      g_param_spec_boolean ("has-bidi-layouts",
-                            P_("Has bidi layouts"),
-                            P_("Whether the keyboard has bidi layouts"),
+      g_param_spec_boolean ("has-bidi-layouts", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -276,9 +252,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_CAPS_LOCK_STATE] =
-      g_param_spec_boolean ("caps-lock-state",
-                            P_("Caps lock state"),
-                            P_("Whether the keyboard caps lock is on"),
+      g_param_spec_boolean ("caps-lock-state", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -290,9 +264,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_NUM_LOCK_STATE] =
-      g_param_spec_boolean ("num-lock-state",
-                            P_("Num lock state"),
-                            P_("Whether the keyboard num lock is on"),
+      g_param_spec_boolean ("num-lock-state", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -304,9 +276,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_SCROLL_LOCK_STATE] =
-      g_param_spec_boolean ("scroll-lock-state",
-                            P_("Scroll lock state"),
-                            P_("Whether the keyboard scroll lock is on"),
+      g_param_spec_boolean ("scroll-lock-state", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -318,9 +288,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
    * This is only relevant for keyboard devices.
    */
   device_props[PROP_MODIFIER_STATE] =
-      g_param_spec_flags ("modifier-state",
-                          P_("Modifier state"),
-                          P_("The modifier state of the keyboard"),
+      g_param_spec_flags ("modifier-state", NULL, NULL,
                           GDK_TYPE_MODIFIER_TYPE, 0,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 

gdk/gdkdevicetool.c

@@ -111,9 +111,7 @@ gdk_device_tool_class_init (GdkDeviceToolClass *klass)
    *
    * The serial number of the tool.
    */
-  tool_props[TOOL_PROP_SERIAL] = g_param_spec_uint64 ("serial",
-                                                      "Serial",
-                                                      "Serial number",
+  tool_props[TOOL_PROP_SERIAL] = g_param_spec_uint64 ("serial", NULL, NULL,
                                                       0, G_MAXUINT64, 0,
                                                       G_PARAM_READWRITE |
                                                       G_PARAM_CONSTRUCT_ONLY |
@@ -124,9 +122,7 @@ gdk_device_tool_class_init (GdkDeviceToolClass *klass)
    *
    * The type of the tool.
    */
-  tool_props[TOOL_PROP_TOOL_TYPE] = g_param_spec_enum ("tool-type",
-                                                       "Tool type",
-                                                       "Tool type",
+  tool_props[TOOL_PROP_TOOL_TYPE] = g_param_spec_enum ("tool-type", NULL, NULL,
                                                        GDK_TYPE_DEVICE_TOOL_TYPE,
                                                        GDK_DEVICE_TOOL_TYPE_UNKNOWN,
                                                        G_PARAM_READWRITE |
@@ -138,9 +134,7 @@ gdk_device_tool_class_init (GdkDeviceToolClass *klass)
    *
    * The axes of the tool.
    */
-  tool_props[TOOL_PROP_AXES] = g_param_spec_flags ("axes",
-                                                   "Axes",
-                                                   "Tool axes",
+  tool_props[TOOL_PROP_AXES] = g_param_spec_flags ("axes", NULL, NULL,
                                                    GDK_TYPE_AXIS_FLAGS, 0,
                                                    G_PARAM_READWRITE |
                                                    G_PARAM_CONSTRUCT_ONLY);
@@ -150,9 +144,7 @@ gdk_device_tool_class_init (GdkDeviceToolClass *klass)
    *
    * The hardware ID of the tool.
    */
-  tool_props[TOOL_PROP_HARDWARE_ID] = g_param_spec_uint64 ("hardware-id",
-                                                           "Hardware ID",
-                                                           "Hardware ID",
+  tool_props[TOOL_PROP_HARDWARE_ID] = g_param_spec_uint64 ("hardware-id", NULL, NULL,
                                                            0, G_MAXUINT64, 0,
                                                            G_PARAM_READWRITE |
                                                            G_PARAM_CONSTRUCT_ONLY |

gdk/gdkdisplay.c

@@ -213,9 +213,7 @@ gdk_display_class_init (GdkDisplayClass *class)
    * %TRUE if the display properly composites the alpha channel.
    */
   props[PROP_COMPOSITED] =
-    g_param_spec_boolean ("composited",
-                          P_("Composited"),
-                          P_("Composited"),
+    g_param_spec_boolean ("composited", NULL, NULL,
                           TRUE,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -225,9 +223,7 @@ gdk_display_class_init (GdkDisplayClass *class)
    * %TRUE if the display supports an alpha channel.
    */
   props[PROP_RGBA] =
-    g_param_spec_boolean ("rgba",
-                          P_("RGBA"),
-                          P_("RGBA"),
+    g_param_spec_boolean ("rgba", NULL, NULL,
                           TRUE,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -237,9 +233,7 @@ gdk_display_class_init (GdkDisplayClass *class)
    * %TRUE if the display supports input shapes.
    */
   props[PROP_INPUT_SHAPES] =
-    g_param_spec_boolean ("input-shapes",
-                          P_("Input shapes"),
-                          P_("Input shapes"),
+    g_param_spec_boolean ("input-shapes", NULL, NULL,
                           TRUE,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -1628,10 +1622,10 @@ gdk_display_check_egl_extensions (EGLDisplay   egl_display,
                    /* translators: Arguments are the number of missing extensions
                     * followed by a comma-separated list of their names */
                    g_dngettext (GETTEXT_PACKAGE,
-                                "EGL implementation is missing extension %2$s",
-                                "EGL implementation is missing %d extensions: %s",
+                                "EGL implementation is missing extension %s",
+                                "EGL implementation is missing %2$d extensions: %1$s",
                                 n_missing),
-                   (int) n_missing, missing->str);
+                   missing->str, (int) n_missing);
 
       g_string_free (missing, TRUE);
       return FALSE;

gdk/gdkdisplaymanager.c

@@ -155,9 +155,7 @@ gdk_display_manager_class_init (GdkDisplayManagerClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_DEFAULT_DISPLAY,
-                                   g_param_spec_object ("default-display",
-                                                        P_("Default Display"),
-                                                        P_("The default display for GDK"),
+                                   g_param_spec_object ("default-display", NULL, NULL,
                                                         GDK_TYPE_DISPLAY,
                                                         G_PARAM_READWRITE|G_PARAM_STATIC_STRINGS));
 }

gdk/gdkdrag.c

@@ -379,9 +379,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The `GdkContentProvider`.
    */
   properties[PROP_CONTENT] =
-    g_param_spec_object ("content",
-                         "Content",
-                         "The content being dragged",
+    g_param_spec_object ("content", NULL, NULL,
                          GDK_TYPE_CONTENT_PROVIDER,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -394,9 +392,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The `GdkDevice` that is performing the drag.
    */
   properties[PROP_DEVICE] =
-    g_param_spec_object ("device",
-                         "Device",
-                         "The device performing the drag",
+    g_param_spec_object ("device", NULL, NULL,
                          GDK_TYPE_DEVICE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -409,9 +405,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The `GdkDisplay` that the drag belongs to.
    */
   properties[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "Display this drag belongs to",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READABLE |
                          G_PARAM_STATIC_STRINGS |
@@ -423,9 +417,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The possible formats that the drag can provide its data in.
    */
   properties[PROP_FORMATS] =
-    g_param_spec_boxed ("formats",
-                        "Formats",
-                        "The possible formats for data",
+    g_param_spec_boxed ("formats", NULL, NULL,
                         GDK_TYPE_CONTENT_FORMATS,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
@@ -438,9 +430,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The currently selected action of the drag.
    */
   properties[PROP_SELECTED_ACTION] =
-    g_param_spec_flags ("selected-action",
-                        "Selected action",
-                        "The currently selected action",
+    g_param_spec_flags ("selected-action", NULL, NULL,
                         GDK_TYPE_DRAG_ACTION,
                         0,
                         G_PARAM_READWRITE |
@@ -453,9 +443,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The possible actions of this drag.
    */
   properties[PROP_ACTIONS] =
-    g_param_spec_flags ("actions",
-                        "Actions",
-                        "The possible actions",
+    g_param_spec_flags ("actions", NULL, NULL,
                         GDK_TYPE_DRAG_ACTION,
                         0,
                         G_PARAM_READWRITE |
@@ -468,9 +456,7 @@ gdk_drag_class_init (GdkDragClass *klass)
    * The surface where the drag originates.
    */
   properties[PROP_SURFACE] =
-    g_param_spec_object ("surface",
-                         "Surface",
-                         "The surface where the drag originates",
+    g_param_spec_object ("surface", NULL, NULL,
                          GDK_TYPE_SURFACE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gdk/gdkdrawcontext.c

@@ -168,9 +168,7 @@ gdk_draw_context_class_init (GdkDrawContextClass *klass)
    * The `GdkDisplay` used to create the `GdkDrawContext`.
    */
   pspecs[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         P_("Display"),
-                         P_("The GDK display used to create the context"),
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -182,9 +180,7 @@ gdk_draw_context_class_init (GdkDrawContextClass *klass)
    * The `GdkSurface` the context is bound to.
    */
   pspecs[PROP_SURFACE] =
-    g_param_spec_object ("surface",
-                         P_("Surface"),
-                         P_("The GDK surface bound to the context"),
+    g_param_spec_object ("surface", NULL, NULL,
                          GDK_TYPE_SURFACE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gdk/gdkdrop.c

@@ -325,9 +325,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The possible actions for this drop
    */
   properties[PROP_ACTIONS] =
-    g_param_spec_flags ("actions",
-                        "Actions",
-                        "The possible actions for this drop",
+    g_param_spec_flags ("actions", NULL, NULL,
                          GDK_TYPE_DRAG_ACTION,
                          GDK_ACTION_ALL,
                          G_PARAM_READWRITE |
@@ -341,9 +339,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The `GdkDevice` performing the drop
    */
   properties[PROP_DEVICE] =
-    g_param_spec_object ("device",
-                         "Device",
-                         "The device performing the drop",
+    g_param_spec_object ("device", NULL, NULL,
                          GDK_TYPE_DEVICE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -356,9 +352,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The `GdkDisplay` that the drop belongs to.
    */
   properties[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "Display this drag belongs to",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READABLE |
                          G_PARAM_STATIC_STRINGS |
@@ -370,9 +364,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The `GdkDrag` that initiated this drop
    */
   properties[PROP_DRAG] =
-    g_param_spec_object ("drag",
-                         "Drag",
-                         "The drag that initiated this drop",
+    g_param_spec_object ("drag", NULL, NULL,
                          GDK_TYPE_DRAG,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -385,9 +377,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The possible formats that the drop can provide its data in.
    */
   properties[PROP_FORMATS] =
-    g_param_spec_boxed ("formats",
-                        "Formats",
-                        "The possible formats for data",
+    g_param_spec_boxed ("formats", NULL, NULL,
                         GDK_TYPE_CONTENT_FORMATS,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
@@ -400,9 +390,7 @@ gdk_drop_class_init (GdkDropClass *klass)
    * The `GdkSurface` the drop happens on
    */
   properties[PROP_SURFACE] =
-    g_param_spec_object ("surface",
-                         "Surface",
-                         "The surface the drop is happening on",
+    g_param_spec_object ("surface", NULL, NULL,
                          GDK_TYPE_SURFACE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gdk/gdkglcontext.c

@@ -690,9 +690,7 @@ gdk_gl_context_class_init (GdkGLContextClass *klass)
    *   can be shared.
    */
   properties[PROP_SHARED_CONTEXT] =
-    g_param_spec_object ("shared-context",
-                         P_("Shared context"),
-                         P_("The GL context this context shares data with"),
+    g_param_spec_object ("shared-context", NULL, NULL,
                          GDK_TYPE_GL_CONTEXT,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -707,9 +705,7 @@ gdk_gl_context_class_init (GdkGLContextClass *klass)
    * Since: 4.6
    */
   properties[PROP_ALLOWED_APIS] =
-    g_param_spec_flags ("allowed-apis",
-                        P_("Allowed APIs"),
-                        P_("The list of allowed APIs for this context"),
+    g_param_spec_flags ("allowed-apis", NULL, NULL,
                         GDK_TYPE_GL_API,
                         DEFAULT_ALLOWED_APIS,
                         G_PARAM_READWRITE |
@@ -724,9 +720,7 @@ gdk_gl_context_class_init (GdkGLContextClass *klass)
    * Since: 4.6
    */
   properties[PROP_API] =
-    g_param_spec_flags ("api",
-                        P_("API"),
-                        P_("The API currently in use"),
+    g_param_spec_flags ("api", NULL, NULL,
                         GDK_TYPE_GL_API,
                         0,
                         G_PARAM_READABLE |

gdk/gdkintl.h

@@ -27,6 +27,4 @@
 
 #include <glib/gi18n-lib.h>
 
-#define P_(String) dgettext (GETTEXT_PACKAGE "-properties", String)
-
 #endif

gdk/gdkkeys.c

@@ -123,9 +123,7 @@ gdk_keymap_class_init (GdkKeymapClass *klass)
   klass->keys_changed = gdk_keymap_keys_changed;
 
   props[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "The display of the keymap",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 

gdk/gdkmemorytexture.c

@@ -178,19 +178,19 @@ gdk_memory_texture_new_subtexture (GdkMemoryTexture  *source,
   GBytes *bytes;
 
   g_return_val_if_fail (GDK_IS_MEMORY_TEXTURE (source), NULL);
-  g_return_val_if_fail (x < 0 || x >= GDK_TEXTURE (source)->width, NULL);
-  g_return_val_if_fail (y < 0 || y >= GDK_TEXTURE (source)->height, NULL);
-  g_return_val_if_fail (width <= 0 || x + width > GDK_TEXTURE (source)->width, NULL);
-  g_return_val_if_fail (height <= 0 || y + height > GDK_TEXTURE (source)->height, NULL);
+  g_return_val_if_fail (x >= 0 || x < GDK_TEXTURE (source)->width, NULL);
+  g_return_val_if_fail (y >= 0 || y < GDK_TEXTURE (source)->height, NULL);
+  g_return_val_if_fail (width > 0 || x + width <= GDK_TEXTURE (source)->width, NULL);
+  g_return_val_if_fail (height > 0 || y + height <= GDK_TEXTURE (source)->height, NULL);
 
   texture = GDK_TEXTURE (source);
   bpp = gdk_memory_format_bytes_per_pixel (texture->format);
   offset = y * source->stride + x * bpp;
-  size = source->stride * (height - 1) + x * bpp;
+  size = source->stride * (height - 1) + width * bpp;
   bytes = g_bytes_new_from_bytes (source->bytes, offset, size);
 
-  result = gdk_memory_texture_new (texture->width,
-                                   texture->height,
+  result = gdk_memory_texture_new (width,
+                                   height,
                                    texture->format,
                                    bytes,
                                    source->stride);

gdk/gdkmonitor.c

@@ -176,9 +176,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The `GdkDisplay` of the monitor.
    */
   props[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "The display of the monitor",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -188,9 +186,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The manufacturer name.
    */
   props[PROP_MANUFACTURER] =
-    g_param_spec_string ("manufacturer",
-                         "Manufacturer",
-                         "The manufacturer name",
+    g_param_spec_string ("manufacturer", NULL, NULL,
                          NULL,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -200,9 +196,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The model name.
    */
   props[PROP_MODEL] =
-    g_param_spec_string ("model",
-                         "Model",
-                         "The model name",
+    g_param_spec_string ("model", NULL, NULL,
                          NULL,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -212,9 +206,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The connector name.
    */
   props[PROP_CONNECTOR] =
-    g_param_spec_string ("connector",
-                         "Connector",
-                         "The connector name",
+    g_param_spec_string ("connector", NULL, NULL,
                          NULL,
                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -224,9 +216,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The scale factor.
    */
   props[PROP_SCALE_FACTOR] =
-    g_param_spec_int ("scale-factor",
-                      "Scale factor",
-                      "The scale factor",
+    g_param_spec_int ("scale-factor", NULL, NULL,
                       0, G_MAXINT,
                       1,
                       G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -237,9 +227,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The geometry of the monitor.
    */
   props[PROP_GEOMETRY] =
-    g_param_spec_boxed ("geometry",
-                        "Geometry",
-                        "The geometry of the monitor",
+    g_param_spec_boxed ("geometry", NULL, NULL,
                         GDK_TYPE_RECTANGLE,
                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -249,9 +237,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The width of the monitor, in millimeters.
    */
   props[PROP_WIDTH_MM] =
-    g_param_spec_int ("width-mm",
-                      "Physical width",
-                      "The width of the monitor, in millimeters",
+    g_param_spec_int ("width-mm", NULL, NULL,
                       0, G_MAXINT,
                       0,
                       G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -262,9 +248,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The height of the monitor, in millimeters.
    */
   props[PROP_HEIGHT_MM] =
-    g_param_spec_int ("height-mm",
-                      "Physical height",
-                      "The height of the monitor, in millimeters",
+    g_param_spec_int ("height-mm", NULL, NULL,
                       0, G_MAXINT,
                       0,
                       G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -275,9 +259,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The refresh rate, in milli-Hertz.
    */
   props[PROP_REFRESH_RATE] =
-    g_param_spec_int ("refresh-rate",
-                      "Refresh rate",
-                      "The refresh rate, in millihertz",
+    g_param_spec_int ("refresh-rate", NULL, NULL,
                       0, G_MAXINT,
                       0,
                       G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -288,9 +270,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * The subpixel layout.
    */
   props[PROP_SUBPIXEL_LAYOUT] =
-    g_param_spec_enum ("subpixel-layout",
-                       "Subpixel layout",
-                       "The subpixel layout",
+    g_param_spec_enum ("subpixel-layout", NULL, NULL,
                        GDK_TYPE_SUBPIXEL_LAYOUT,
                        GDK_SUBPIXEL_LAYOUT_UNKNOWN,
                        G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
@@ -301,9 +281,7 @@ gdk_monitor_class_init (GdkMonitorClass *class)
    * Whether the object is still valid.
    */
   props[PROP_VALID] =
-    g_param_spec_boolean ("valid",
-                          "Valid",
-                          "Whether the monitor is still valid",
+    g_param_spec_boolean ("valid", NULL, NULL,
                           TRUE,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 

gdk/gdkpopup.c

@@ -85,9 +85,7 @@ gdk_popup_default_init (GdkPopupInterface *iface)
    * The parent surface.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_object ("parent",
-                           P_("Parent"),
-                           P_("The parent surface"),
+      g_param_spec_object ("parent", NULL, NULL,
                            GDK_TYPE_SURFACE,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 
@@ -97,9 +95,7 @@ gdk_popup_default_init (GdkPopupInterface *iface)
    * Whether to hide on outside clicks.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("autohide",
-                           P_("Autohide"),
-                           P_("Whether to hide on outside clicks"),
+      g_param_spec_boolean ("autohide", NULL, NULL,
                            FALSE,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 }

gdk/gdkseat.c

@@ -184,9 +184,7 @@ gdk_seat_class_init (GdkSeatClass *klass)
    * `GdkDisplay` of this seat.
    */
   props[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         P_("Display"),
-                         P_("Display"),
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gdk/gdksurface.c

@@ -506,9 +506,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The mouse pointer for the `GdkSurface`.
    */
   properties[PROP_CURSOR] =
-      g_param_spec_object ("cursor",
-                           P_("Cursor"),
-                           P_("Cursor"),
+      g_param_spec_object ("cursor", NULL, NULL,
                            GDK_TYPE_CURSOR,
                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 
@@ -518,9 +516,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The `GdkDisplay` connection of the surface.
    */
   properties[PROP_DISPLAY] =
-      g_param_spec_object ("display",
-                           P_("Display"),
-                           P_("Display"),
+      g_param_spec_object ("display", NULL, NULL,
                            GDK_TYPE_DISPLAY,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -530,9 +526,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The `GdkFrameClock` of the surface.
    */
   properties[PROP_FRAME_CLOCK] =
-      g_param_spec_object ("frame-clock",
-                           P_("Frame Clock"),
-                           P_("Frame Clock"),
+      g_param_spec_object ("frame-clock", NULL, NULL,
                            GDK_TYPE_FRAME_CLOCK,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -542,9 +536,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * Whether the surface is mapped.
    */
   properties[PROP_MAPPED] =
-      g_param_spec_boolean ("mapped",
-                            P_("Mapped"),
-                            P_("Mapped"),
+      g_param_spec_boolean ("mapped", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -554,9 +546,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The width of the surface in pixels.
    */
   properties[PROP_WIDTH] =
-      g_param_spec_int ("width",
-                        P_("Width"),
-                        P_("Width"),
+      g_param_spec_int ("width", NULL, NULL,
                         0, G_MAXINT, 0,
                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -566,9 +556,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The height of the surface, in pixels.
    */
   properties[PROP_HEIGHT] =
-      g_param_spec_int ("height",
-                        P_("Height"),
-                        P_("Height"),
+      g_param_spec_int ("height", NULL, NULL,
                         0, G_MAXINT, 0,
                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
@@ -578,9 +566,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
    * The scale factor of the surface.
    */
   properties[PROP_SCALE_FACTOR] =
-      g_param_spec_int ("scale-factor",
-                        P_("Scale factor"),
-                        P_("Scale factor"),
+      g_param_spec_int ("scale-factor", NULL, NULL,
                         1, G_MAXINT, 1,
                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 

gdk/gdktexture.c

@@ -304,9 +304,7 @@ gdk_texture_class_init (GdkTextureClass *klass)
    * The width of the texture, in pixels.
    */
   properties[PROP_WIDTH] =
-    g_param_spec_int ("width",
-                      "Width",
-                      "The width of the texture",
+    g_param_spec_int ("width", NULL, NULL,
                       1,
                       G_MAXINT,
                       1,
@@ -321,9 +319,7 @@ gdk_texture_class_init (GdkTextureClass *klass)
    * The height of the texture, in pixels.
    */
   properties[PROP_HEIGHT] =
-    g_param_spec_int ("height",
-                      "Height",
-                      "The height of the texture",
+    g_param_spec_int ("height", NULL, NULL,
                       1,
                       G_MAXINT,
                       1,

gdk/gdktoplevel.c

@@ -131,9 +131,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * The state of the toplevel.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_flags ("state",
-                          P_("State"),
-                          P_("State"),
+      g_param_spec_flags ("state", NULL, NULL,
                           GDK_TYPE_TOPLEVEL_STATE, 0,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
 
@@ -143,9 +141,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * The title of the surface.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_string ("title",
-                           "Title",
-                           "The title of the surface",
+      g_param_spec_string ("title", NULL, NULL,
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -158,9 +154,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * startup feedback.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_string ("startup-id",
-                           "Startup ID",
-                           "The startup ID of the surface",
+      g_param_spec_string ("startup-id", NULL, NULL,
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -170,9 +164,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * The transient parent of the surface.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_object ("transient-for",
-                           "Transient For",
-                           "The transient parent of the surface",
+      g_param_spec_object ("transient-for", NULL, NULL,
                            GDK_TYPE_SURFACE,
                            G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -182,9 +174,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * Whether the surface is modal.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("modal",
-                            "Modal",
-                            "Whether the surface is modal",
+      g_param_spec_boolean ("modal", NULL, NULL,
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -194,9 +184,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * A list of textures to use as icon.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_pointer ("icon-list",
-                            "Icon List",
-                            "The list of icon textures",
+      g_param_spec_pointer ("icon-list", NULL, NULL,
                             G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
   /**
@@ -205,9 +193,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * Whether the window manager should add decorations.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("decorated",
-                            "Decorated",
-                            "Decorated",
+      g_param_spec_boolean ("decorated", NULL, NULL,
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -217,9 +203,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * Whether the window manager should allow to close the surface.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("deletable",
-                            "Deletable",
-                            "Deletable",
+      g_param_spec_boolean ("deletable", NULL, NULL,
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -229,9 +213,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * The fullscreen mode of the surface.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_enum ("fullscreen-mode",
-                         "Fullscreen mode",
-                         "Fullscreen mode",
+      g_param_spec_enum ("fullscreen-mode", NULL, NULL,
                          GDK_TYPE_FULLSCREEN_MODE,
                          GDK_FULLSCREEN_ON_CURRENT_MONITOR,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
@@ -242,9 +224,7 @@ gdk_toplevel_default_init (GdkToplevelInterface *iface)
    * Whether the surface should inhibit keyboard shortcuts.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("shortcuts-inhibited",
-                            "Shortcuts inhibited",
-                            "Whether keyboard shortcuts are inhibited",
+      g_param_spec_boolean ("shortcuts-inhibited", NULL, NULL,
                             FALSE,
                             G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY));
 

gdk/macos/gdkmacosdrag.c

@@ -601,9 +601,7 @@ gdk_macos_drag_class_init (GdkMacosDragClass *klass)
   drag_class->handle_event = gdk_macos_drag_handle_event;
 
   properties [PROP_DRAG_SURFACE] =
-    g_param_spec_object ("drag-surface",
-                         P_("Drag Surface"),
-                         P_("Drag Surface"),
+    g_param_spec_object ("drag-surface", NULL, NULL,
                          GDK_TYPE_MACOS_DRAG_SURFACE,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 

gdk/macos/gdkmacossurface.c

@@ -602,9 +602,7 @@ gdk_macos_surface_class_init (GdkMacosSurfaceClass *klass)
    * The "native" property contains the underlying NSWindow.
    */
   properties [PROP_NATIVE] =
-    g_param_spec_pointer ("native",
-                          "Native",
-                          "The native NSWindow",
+    g_param_spec_pointer ("native", NULL, NULL,
                           G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
   g_object_class_install_properties (object_class, LAST_PROP, properties);

gdk/wayland/gdksurface-wayland.c

@@ -113,6 +113,7 @@ struct _GdkWaylandSurface
 
   PopupState popup_state;
 
+  unsigned int popup_thaw_upon_show : 1;
   unsigned int initial_configure_received : 1;
   unsigned int has_uncommitted_ack_configure : 1;
   unsigned int mapped : 1;
@@ -2984,6 +2985,9 @@ gdk_wayland_surface_hide_surface (GdkSurface *surface)
 
       if (GDK_IS_POPUP (surface))
         {
+          impl->popup_thaw_upon_show = TRUE;
+          gdk_surface_freeze_updates (surface);
+
           switch (impl->popup_state)
             {
             case POPUP_STATE_WAITING_FOR_REPOSITIONED:
@@ -3223,6 +3227,12 @@ show_popup (GdkSurface     *surface,
   if (!impl->display_server.wl_surface)
     gdk_wayland_surface_create_surface (surface);
 
+  if (impl->popup_thaw_upon_show)
+    {
+      impl->popup_thaw_upon_show = FALSE;
+      gdk_surface_thaw_updates (surface);
+    }
+
   gdk_wayland_surface_map_popup (surface, width, height, layout);
 }
 

gdk/win32/gdkcursor-win32.c

@@ -231,22 +231,16 @@ gdk_win32_hcursor_class_init (GdkWin32HCursorClass *klass)
   object_class->set_property = gdk_win32_hcursor_set_property;
 
   hcursor_props[PROP_DISPLAY] =
-      g_param_spec_object ("display",
-                           P_("Display"),
-                           P_("The display that will use this cursor"),
+      g_param_spec_object ("display", NULL, NULL,
                            GDK_TYPE_DISPLAY,
                            G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
 
   hcursor_props[PROP_HANDLE] =
-      g_param_spec_pointer ("handle",
-                            P_("Handle"),
-                            P_("The HCURSOR handle for this cursor"),
+      g_param_spec_pointer ("handle", NULL, NULL,
                             G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
 
   hcursor_props[PROP_DESTROYABLE] =
-      g_param_spec_boolean ("destroyable",
-                            P_("Destroyable"),
-                            P_("Whether calling DestroyCursor() is allowed on this cursor"),
+      g_param_spec_boolean ("destroyable", NULL, NULL,
                             TRUE,
                             G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
 

gdk/win32/gdkevents-win32.c

@@ -58,6 +58,7 @@
 #include "gdkdeviceprivate.h"
 #include "gdkdevice-virtual.h"
 #include "gdkdevice-wintab.h"
+#include "gdkinput-dmanipulation.h"
 #include "gdkinput-winpointer.h"
 #include "gdkwin32dnd.h"
 #include "gdkwin32dnd-private.h"
@@ -2656,6 +2657,13 @@ gdk_event_translate (MSG *msg,
       return_val = TRUE;
       break;
 
+    case DM_POINTERHITTEST:
+      gdk_dmanipulation_maybe_add_contact (window, msg);
+
+      *ret_valp = 0;
+      return_val = TRUE;
+      break;
+
     case WM_MOUSEWHEEL:
     case WM_MOUSEHWHEEL:
     {
@@ -3156,6 +3164,8 @@ gdk_event_translate (MSG *msg,
       if (win32_display->tablet_input_api == GDK_WIN32_TABLET_INPUT_API_WINPOINTER)
         gdk_winpointer_finalize_surface (window);
 
+      gdk_dmanipulation_finalize_surface (window);
+
       return_val = FALSE;
       break;
 

gdk/win32/gdkinput-dmanipulation.c

@@ -0,0 +1,586 @@
+/* gdkinput-dmanipulation.c
+ *
+ * Copyright © 2022 the GTK team
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+/* {{{ */
+
+#ifdef WINVER
+#undef WINVER
+#endif
+#ifdef _WIN32_WINNT
+#undef _WIN32_WINNT
+#endif
+#define WINVER 0x0603
+#define _WIN32_WINNT 0x0603
+#define COBJMACROS
+#include "config.h"
+
+#include <gdk/gdk.h>
+#include "gdkwin32.h"
+#include "gdkprivate-win32.h"
+#include "gdkdevicemanager-win32.h"
+#include "gdkdevice-virtual.h"
+#include "gdkdeviceprivate.h"
+#include "gdkdisplayprivate.h"
+#include "gdkeventsprivate.h"
+#include "gdkseatdefaultprivate.h"
+#include "gdkinput-dmanipulation.h"
+#include "winpointer.h"
+
+#include <windows.h>
+#include <directmanipulation.h>
+
+typedef BOOL
+(WINAPI *getPointerType_t)(UINT32 pointerId, POINTER_INPUT_TYPE *pointerType);
+static getPointerType_t getPointerType;
+
+static IDirectManipulationManager *dmanipulation_manager;
+
+typedef struct
+{
+  IDirectManipulationViewportEventHandlerVtbl *vtable;
+  LONG reference_count;
+
+  enum {
+    GESTURE_PAN,
+    GESTURE_ZOOM,
+  } gesture;
+
+  GdkTouchpadGesturePhase phase;
+  gpointer sequence;
+
+  float scale;
+  float pan_x;
+  float pan_y;
+
+  GdkSurface *surface;
+  GdkDevice *device;
+}
+DManipEventHandler;
+
+static void dmanip_event_handler_running_state_clear (DManipEventHandler *handler);
+static void dmanip_event_handler_free (DManipEventHandler *handler);
+
+static void reset_viewport (IDirectManipulationViewport *viewport);
+
+static gpointer util_get_next_sequence (void);
+static GdkModifierType util_get_modifier_state (void);
+static gboolean util_handler_free (gpointer);
+
+/* }}} */
+/* {{{ ViewportEventHandler */
+
+static STDMETHODIMP_ (ULONG)
+DManipEventHandler_AddRef (IDirectManipulationViewportEventHandler *self_)
+{
+  DManipEventHandler *self = (DManipEventHandler*) self_;
+
+  return (ULONG) InterlockedIncrement (&self->reference_count);
+}
+
+static STDMETHODIMP_ (ULONG)
+DManipEventHandler_Release (IDirectManipulationViewportEventHandler *self_)
+{
+  DManipEventHandler *self = (DManipEventHandler*) self_;
+
+  /* NOTE: This may run from a worker thread */
+
+  LONG new_reference_count = InterlockedDecrement (&self->reference_count);
+
+  if (new_reference_count <= 0)
+    {
+      /* For safety, schedule the cleanup to be executed
+       * on the main thread */
+      g_idle_add (util_handler_free, self);
+
+      return 0;
+    }
+
+  return (ULONG) new_reference_count;
+}
+
+static STDMETHODIMP
+DManipEventHandler_QueryInterface (IDirectManipulationViewportEventHandler *self_,
+                                   REFIID riid,
+                                   void **ppvObject)
+{
+  DManipEventHandler *self = (DManipEventHandler*) self_;
+
+  if G_UNLIKELY (!self || !ppvObject)
+    return E_POINTER;
+
+  *ppvObject = NULL;
+
+  if (IsEqualGUID (riid, &IID_IUnknown))
+    *ppvObject = self;
+  else if (IsEqualGUID (riid, &IID_IDirectManipulationViewportEventHandler))
+    *ppvObject = self;
+
+  if (*ppvObject == NULL)
+    return E_NOINTERFACE;
+
+  DManipEventHandler_AddRef (self_);
+  return S_OK;
+}
+
+/* NOTE:
+ *
+ * All DManipEventHandler callbacks are fired from the main thread */
+
+static STDMETHODIMP
+DManipEventHandler_OnViewportUpdated (IDirectManipulationViewportEventHandler *self_,
+                                      IDirectManipulationViewport *viewport)
+{
+  return S_OK;
+}
+
+static STDMETHODIMP
+DManipEventHandler_OnContentUpdated (IDirectManipulationViewportEventHandler *self_,
+                                     IDirectManipulationViewport *viewport,
+                                     IDirectManipulationContent *content)
+{
+  DManipEventHandler *self = (DManipEventHandler*) self_;
+  float transform[6] = {1., 0., 0., 1., 0., 0.};
+  HRESULT hr;
+
+  hr = IDirectManipulationContent_GetContentTransform (content, transform,
+                                                       G_N_ELEMENTS (transform));
+  HR_CHECK_RETURN_VAL (hr, E_FAIL);
+
+  switch (self->gesture)
+    {
+    case GESTURE_PAN:
+      {
+        GdkModifierType state;
+        uint32_t time;
+        float pan_x;
+        float pan_y;
+        GdkEvent *event;
+
+        pan_x = transform[4];
+        pan_y = transform[5];
+
+        state = util_get_modifier_state ();
+        time = (uint32_t) GetMessageTime ();
+
+        event = gdk_scroll_event_new (self->surface,
+                                      self->device,
+                                      NULL, time, state,
+                                      self->pan_x - pan_x,
+                                      self->pan_y - pan_y,
+                                      FALSE,
+                                      GDK_SCROLL_UNIT_SURFACE);
+        _gdk_win32_append_event (event);
+
+        self->pan_x = pan_x;
+        self->pan_y = pan_y;
+      }
+    break;
+    case GESTURE_ZOOM:
+      {
+        GdkModifierType state;
+        uint32_t time;
+        POINT cursor = {0, 0};
+        float scale;
+        GdkEvent *event;
+
+        scale = transform[0];
+
+        state = util_get_modifier_state ();
+        time = (uint32_t) GetMessageTime ();
+        _gdk_win32_get_cursor_pos (&cursor);
+
+        ScreenToClient (GDK_SURFACE_HWND (self->surface), &cursor);
+
+        if (!self->sequence)
+          self->sequence = util_get_next_sequence ();
+
+        event = gdk_touchpad_event_new_pinch (self->surface, self->sequence, self->device,
+                                              time, state, self->phase, cursor.x, cursor.y,
+                                              2, 0.0, 0.0, scale, 0.0);
+        _gdk_win32_append_event (event);
+
+        self->scale = scale;
+        self->phase = GDK_TOUCHPAD_GESTURE_PHASE_UPDATE;
+      }
+    break;
+    default:
+      g_assert_not_reached ();
+    break;
+    }
+
+  return S_OK;
+}
+
+static STDMETHODIMP
+DManipEventHandler_OnViewportStatusChanged (IDirectManipulationViewportEventHandler *self_,
+                                            IDirectManipulationViewport *viewport,
+                                            DIRECTMANIPULATION_STATUS current,
+                                            DIRECTMANIPULATION_STATUS previous)
+{
+  DManipEventHandler *self = (DManipEventHandler*) self_;
+
+  if (previous == DIRECTMANIPULATION_RUNNING)
+    {
+      switch (self->gesture)
+        {
+        case GESTURE_PAN:
+          {
+            GdkModifierType state;
+            uint32_t time;
+            GdkEvent *event;
+
+            state = util_get_modifier_state ();
+            time = (uint32_t) GetMessageTime ();
+
+            event = gdk_scroll_event_new (self->surface, self->device,
+                                          NULL, time, state,
+                                          0.0, 0.0, TRUE,
+                                          GDK_SCROLL_UNIT_SURFACE);
+            _gdk_win32_append_event (event);
+          }
+        break;
+        case GESTURE_ZOOM:
+          {
+            GdkModifierType state;
+            uint32_t time;
+            POINT cursor = {0, 0};
+            GdkEvent *event;
+
+            if (self->phase == GDK_TOUCHPAD_GESTURE_PHASE_BEGIN)
+              break;
+
+            state = util_get_modifier_state ();
+            time = (uint32_t) GetMessageTime ();
+            _gdk_win32_get_cursor_pos (&cursor);
+
+            ScreenToClient (GDK_SURFACE_HWND (self->surface), &cursor);
+
+            event = gdk_touchpad_event_new_pinch (self->surface, self->sequence, self->device,
+                                                  time, state, GDK_TOUCHPAD_GESTURE_PHASE_END,
+                                                  cursor.x, cursor.y, 2, 0., 0., self->scale,
+                                                  0.);
+            _gdk_win32_append_event (event);
+          }
+        break;
+        default:
+          g_assert_not_reached ();
+        break;
+        }
+
+      dmanip_event_handler_running_state_clear (self);
+      reset_viewport (viewport);
+    }
+
+  return S_OK;
+}
+
+static void
+dmanip_event_handler_running_state_clear (DManipEventHandler *handler)
+{
+  handler->scale = 1.0;
+  handler->pan_x = 0.0;
+  handler->pan_y = 0.0;
+
+  handler->phase = GDK_TOUCHPAD_GESTURE_PHASE_BEGIN;
+  handler->sequence = NULL;
+}
+
+static DManipEventHandler*
+dmanip_event_handler_new (GdkSurface *surface,
+                          int gesture)
+{
+  static IDirectManipulationViewportEventHandlerVtbl vtable = {
+    DManipEventHandler_QueryInterface,
+    DManipEventHandler_AddRef,
+    DManipEventHandler_Release,
+    DManipEventHandler_OnViewportStatusChanged,
+    DManipEventHandler_OnViewportUpdated,
+    DManipEventHandler_OnContentUpdated,
+  };
+  DManipEventHandler *handler;
+
+  handler = g_new0 (DManipEventHandler, 1);
+  handler->vtable = &vtable;
+  handler->reference_count = 1;
+
+  handler->gesture = gesture;
+
+  handler->surface = surface;
+  handler->device = _gdk_device_manager->core_pointer;
+
+  dmanip_event_handler_running_state_clear (handler);
+
+  return handler;
+}
+
+static void
+dmanip_event_handler_free (DManipEventHandler *handler)
+{
+  g_free (handler);
+}
+
+
+/* }}} */
+/* {{{ Viewport utils */
+
+
+static void
+reset_viewport (IDirectManipulationViewport *viewport)
+{
+  IDirectManipulationContent *content = NULL;
+  REFIID iid = &IID_IDirectManipulationContent;
+  float identity[6] = {1., 0., 0., 1., 0., 0.};
+  HRESULT hr;
+
+  hr = IDirectManipulationViewport_GetPrimaryContent (viewport, iid, (void**)&content);
+  HR_CHECK (hr);
+
+  hr = IDirectManipulationContent_SyncContentTransform (content, identity,
+                                                        G_N_ELEMENTS (identity));
+  HR_CHECK (hr);
+}
+
+static void
+close_viewport (IDirectManipulationViewport **p_viewport)
+{
+  IDirectManipulationViewport *viewport = *p_viewport;
+
+  if (viewport)
+    {
+      IDirectManipulationViewport_Abandon (viewport);
+      IUnknown_Release (viewport);
+
+      *p_viewport = NULL;
+    }
+}
+
+static void
+create_viewport (GdkSurface *surface,
+                 int gesture,
+                 IDirectManipulationViewport **pViewport)
+{
+  DIRECTMANIPULATION_CONFIGURATION configuration = 0;
+  HWND hwnd = GDK_SURFACE_HWND (surface);
+  IDirectManipulationViewportEventHandler *handler;
+  DWORD cookie = 0;
+  HRESULT hr;
+
+  hr = IDirectManipulationManager_CreateViewport (dmanipulation_manager, NULL, hwnd,
+                                                  &IID_IDirectManipulationViewport,
+                                                  (void**) pViewport);
+  HR_CHECK_GOTO (hr, failed);
+
+  switch (gesture)
+    {
+    case GESTURE_PAN:
+      configuration = DIRECTMANIPULATION_CONFIGURATION_INTERACTION |
+                      DIRECTMANIPULATION_CONFIGURATION_TRANSLATION_X |
+                      DIRECTMANIPULATION_CONFIGURATION_TRANSLATION_Y;
+    break;
+    case GESTURE_ZOOM:
+      configuration = DIRECTMANIPULATION_CONFIGURATION_INTERACTION |
+                      DIRECTMANIPULATION_CONFIGURATION_SCALING;
+    break;
+    default:
+      g_assert_not_reached ();
+    break;
+    }
+
+  handler = (IDirectManipulationViewportEventHandler*)
+    dmanip_event_handler_new (surface, gesture);
+
+  hr = IDirectManipulationViewport_AddEventHandler (*pViewport, hwnd, handler, &cookie);
+  HR_CHECK_GOTO (hr, failed);
+
+  hr = IDirectManipulationViewport_ActivateConfiguration (*pViewport, configuration);
+  HR_CHECK_GOTO (hr, failed);
+
+  hr = IDirectManipulationViewport_SetViewportOptions (*pViewport,
+         DIRECTMANIPULATION_VIEWPORT_OPTIONS_DISABLEPIXELSNAPPING);
+
+  hr = IDirectManipulationViewport_Enable (*pViewport);
+  HR_CHECK_GOTO (hr, failed);
+
+  // drop our initial reference
+  IUnknown_Release (handler);
+  return;
+
+failed:
+  if (handler)
+    IUnknown_Release (handler);
+
+  close_viewport (pViewport);
+}
+
+
+/* }}} */
+/* {{{ Public */
+
+
+void gdk_dmanipulation_initialize (void)
+{
+  if (!getPointerType)
+    {
+      HMODULE user32_mod;
+
+      user32_mod = LoadLibraryW (L"user32.dll");
+      if (!user32_mod)
+        {
+          WIN32_API_FAILED ("LoadLibraryW");
+          return;
+        }
+
+      getPointerType = (getPointerType_t)
+        GetProcAddress (user32_mod, "GetPointerType");
+
+      if (!getPointerType)
+        return;
+    }
+
+  if (!gdk_win32_ensure_com ())
+        return;
+
+  if (dmanipulation_manager == NULL)
+    {
+      HRESULT hr;
+
+      hr = CoCreateInstance (&CLSID_DirectManipulationManager,
+                             NULL,
+                             CLSCTX_INPROC_SERVER,
+                             &IID_IDirectManipulationManager,
+                             (LPVOID*)&dmanipulation_manager);
+      if (FAILED (hr))
+        {
+          if (hr == REGDB_E_CLASSNOTREG || hr == E_NOINTERFACE);
+            /* Not an error,
+             * DirectManipulation is not available */
+          else HR_LOG (hr);
+        }
+    }
+}
+
+void gdk_dmanipulation_initialize_surface (GdkSurface *surface)
+{
+  GdkWin32Surface *surface_win32;
+  HRESULT hr;
+
+  if (!dmanipulation_manager)
+    return;
+
+  surface_win32 = GDK_WIN32_SURFACE (surface);
+
+  create_viewport (surface, GESTURE_PAN,
+                   &surface_win32->dmanipulation_viewport_pan);
+
+  create_viewport (surface, GESTURE_ZOOM,
+                   &surface_win32->dmanipulation_viewport_zoom);
+
+  hr = IDirectManipulationManager_Activate (dmanipulation_manager,
+                                            GDK_SURFACE_HWND (surface));
+  HR_CHECK (hr);
+}
+
+void gdk_dmanipulation_finalize_surface (GdkSurface *surface)
+{
+  GdkWin32Surface *surface_win32 = GDK_WIN32_SURFACE (surface);
+
+  close_viewport (&surface_win32->dmanipulation_viewport_zoom);
+  close_viewport (&surface_win32->dmanipulation_viewport_pan);
+}
+
+void gdk_dmanipulation_maybe_add_contact (GdkSurface *surface,
+                                          MSG *msg)
+{
+  POINTER_INPUT_TYPE type = PT_POINTER;
+  UINT32 pointer_id = GET_POINTERID_WPARAM (msg->wParam);
+
+  if (!dmanipulation_manager)
+    return;
+
+  if (!getPointerType)
+    return;
+
+  if G_UNLIKELY (!getPointerType (pointer_id, &type))
+    {
+      WIN32_API_FAILED_LOG_ONCE ("GetPointerType");
+      return;
+    }
+
+  if (type == PT_TOUCHPAD)
+    {
+      GdkWin32Surface *surface_win32 = GDK_WIN32_SURFACE (surface);
+      HRESULT hr;
+
+      hr = IDirectManipulationViewport_SetContact (surface_win32->dmanipulation_viewport_pan,
+                                                   pointer_id);
+      HR_CHECK (hr);
+
+      hr = IDirectManipulationViewport_SetContact (surface_win32->dmanipulation_viewport_zoom,
+                                                   pointer_id);
+      HR_CHECK (hr);
+    }
+}
+
+
+/* }}} */
+/* {{{ Utils */
+
+
+static gpointer
+util_get_next_sequence (void)
+{
+  //TODO: sequence of other input types?
+  static unsigned char *sequence_counter = 0;
+
+  if (++sequence_counter == 0)
+    sequence_counter++;
+
+  return sequence_counter;
+}
+
+static GdkModifierType
+util_get_modifier_state (void)
+{
+  GdkModifierType mask = 0;
+  BYTE kbd[256];
+
+  GetKeyboardState (kbd);
+  if (kbd[VK_SHIFT] & 0x80)
+    mask |= GDK_SHIFT_MASK;
+  if (kbd[VK_CAPITAL] & 0x80)
+    mask |= GDK_LOCK_MASK;
+  if (kbd[VK_CONTROL] & 0x80)
+    mask |= GDK_CONTROL_MASK;
+  if (kbd[VK_MENU] & 0x80)
+    mask |= GDK_ALT_MASK;
+
+  return mask;
+}
+
+static gboolean
+util_handler_free (gpointer handler)
+{
+  dmanip_event_handler_free ((DManipEventHandler*)handler);
+
+  return G_SOURCE_REMOVE;
+}
+
+
+/* }}} */

gdk/win32/gdkinput-dmanipulation.h

@@ -0,0 +1,32 @@
+/* gdkinput-dmanipulation.h
+ *
+ * Copyright © 2022 the GTK team
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#ifndef __GDK_INPUT_DMANIPULATION_H__
+#define __GDK_INPUT_DMANIPULATION_H__
+
+void gdk_dmanipulation_initialize (void);
+
+void gdk_dmanipulation_initialize_surface (GdkSurface *surface);
+void gdk_dmanipulation_finalize_surface   (GdkSurface *surface);
+
+void gdk_dmanipulation_maybe_add_contact  (GdkSurface *surface,
+                                           MSG        *msg);
+
+#endif /* __GDK_INPUT_DMANIPULATION_H__ */

gdk/win32/gdkmain-win32.c

@@ -36,6 +36,7 @@
 #include "gdkkeysyms.h"
 #include "gdkintl.h"
 #include "gdkprivate-win32.h"
+#include "gdkinput-dmanipulation.h"
 #include "gdkwin32.h"
 
 #include <objbase.h>
@@ -49,6 +50,12 @@
 
 static gboolean gdk_synchronize = FALSE;
 
+/* Whether GDK initialized COM */
+static gboolean co_initialized = FALSE;
+
+/* Whether GDK initialized OLE */
+static gboolean ole_initialized = FALSE;
+
 void
 _gdk_win32_surfaceing_init (void)
 {
@@ -67,6 +74,82 @@ _gdk_win32_surfaceing_init (void)
   GDK_NOTE (EVENTS, g_print ("input_locale: %p\n", _gdk_input_locale));
 
   _gdk_win32_clipdrop_init ();
+
+  gdk_dmanipulation_initialize ();
+}
+
+gboolean
+gdk_win32_ensure_com (void)
+{
+  if (!co_initialized)
+    {
+      /* UI thread should only use STA model. See
+       * -> https://devblogs.microsoft.com/oldnewthing/20080424-00/?p=22603
+       * -> https://devblogs.microsoft.com/oldnewthing/20071018-00/?p=24743
+       */
+      const DWORD flags = COINIT_APARTMENTTHREADED |
+                          COINIT_DISABLE_OLE1DDE;
+      HRESULT hr;
+
+      hr = CoInitializeEx (NULL, flags);
+      if (SUCCEEDED (hr))
+        co_initialized = TRUE;
+      else switch (hr)
+        {
+        case RPC_E_CHANGED_MODE:
+          g_warning ("COM runtime already initialized on the main "
+                     "thread with an incompatible apartment model");
+        break;
+        default:
+          HR_LOG (hr);
+        break;
+        }
+    }
+
+  return co_initialized;
+}
+
+static void
+gdk_win32_finalize_com (void)
+{
+  if (co_initialized)
+    {
+      CoUninitialize ();
+      co_initialized = FALSE;
+    }
+}
+
+gboolean
+gdk_win32_ensure_ole (void)
+{
+  if (!ole_initialized)
+    {
+      HRESULT hr = OleInitialize (NULL);
+      if (SUCCEEDED (hr))
+        ole_initialized = TRUE;
+      else switch (hr)
+        {
+        case RPC_E_CHANGED_MODE:
+          g_warning ("Failed to initialize the OLE2 runtime because "
+                     "the thread has an incompatible apartment model");
+        break;
+        default:
+          HR_LOG (hr);
+        break;
+        }
+    }
+
+  return ole_initialized;
+}
+
+static void
+gdk_win32_finalize_ole (void)
+{
+  if (ole_initialized)
+    {
+      OleUninitialize ();
+      ole_initialized = FALSE;
+    }
 }
 
 void

gdk/win32/gdkprivate-win32.h

@@ -196,6 +196,9 @@ void       _gdk_remove_modal_window (GdkSurface *window);
 GdkSurface *_gdk_modal_current       (void);
 gboolean   _gdk_modal_blocked       (GdkSurface *window);
 
+gboolean gdk_win32_ensure_com (void);
+gboolean gdk_win32_ensure_ole (void);
+
 #ifdef G_ENABLE_DEBUG
 void   _gdk_win32_print_paletteentries (const PALETTEENTRY *pep,
                                         const int           nentries);
@@ -252,6 +255,13 @@ void    _gdk_other_api_failed        (const char *where,
 #define GDI_CALL(api, arglist) (api arglist ? 1 : (WIN32_GDI_FAILED (#api), 0))
 #define API_CALL(api, arglist) (api arglist ? 1 : (WIN32_API_FAILED (#api), 0))
 
+#define HR_LOG(hr)
+
+#define HR_CHECK_RETURN(hr) { if G_UNLIKELY (FAILED (hr)) return; }
+#define HR_CHECK_RETURN_VAL(hr, val) { if G_UNLIKELY (FAILED (hr)) return val; }
+#define HR_CHECK(hr)
+#define HR_CHECK_GOTO(hr, label) { if G_UNLIKELY (FAILED (hr)) goto label; }
+
 extern LRESULT CALLBACK _gdk_win32_surface_procedure (HWND, UINT, WPARAM, LPARAM);
 
 extern GdkDisplay       *_gdk_display;

gdk/win32/gdksurface-win32.c

@@ -44,6 +44,7 @@
 #include "gdktoplevelprivate.h"
 #include "gdkwin32surface.h"
 #include "gdkwin32cursor.h"
+#include "gdkinput-dmanipulation.h"
 #include "gdkinput-winpointer.h"
 #include "gdkglcontext-win32.h"
 #include "gdkdisplay-win32.h"
@@ -639,8 +640,14 @@ _gdk_win32_display_create_surface (GdkDisplay     *display,
     }
 
   gdk_surface_set_egl_native_window (surface, (void *) impl->handle);
-  if (display_win32->tablet_input_api == GDK_WIN32_TABLET_INPUT_API_WINPOINTER)
-    gdk_winpointer_initialize_surface (surface);
+
+  if (surface_type != GDK_SURFACE_TEMP)
+    {
+      if (display_win32->tablet_input_api == GDK_WIN32_TABLET_INPUT_API_WINPOINTER)
+        gdk_winpointer_initialize_surface (surface);
+
+      gdk_dmanipulation_initialize_surface (surface);
+    }
 
   _gdk_win32_surface_enable_transparency (surface);
   _gdk_win32_surface_register_dnd (surface);

gdk/win32/gdksurface-win32.h

@@ -32,6 +32,7 @@
 #include "gdk/gdkcursor.h"
 
 #include <windows.h>
+#include <directmanipulation.h>
 
 #ifdef HAVE_EGL
 # include <epoxy/egl.h>
@@ -339,6 +340,9 @@ struct _GdkWin32Surface
   } next_layout;
   gboolean force_recompute_size;
 
+  IDirectManipulationViewport *dmanipulation_viewport_pan;
+  IDirectManipulationViewport *dmanipulation_viewport_zoom;
+
 #ifdef HAVE_EGL
   guint egl_force_redraw_all : 1;
 #endif

gdk/win32/meson.build

@@ -17,6 +17,7 @@ gdk_win32_sources = files([
   'gdkglcontext-win32-wgl.c',
   'gdkglobals-win32.c',
   'gdkhdataoutputstream-win32.c',
+  'gdkinput-dmanipulation.c',
   'gdkinput-winpointer.c',
   'gdkkeys-win32.c',
   'gdkkeys-win32-impl.c',

gdk/x11/gdkdevice-xi2.c

@@ -116,9 +116,7 @@ gdk_x11_device_xi2_class_init (GdkX11DeviceXI2Class *klass)
 
   g_object_class_install_property (object_class,
                                    PROP_DEVICE_ID,
-                                   g_param_spec_int ("device-id",
-                                                     P_("Device ID"),
-                                                     P_("Device identifier"),
+                                   g_param_spec_int ("device-id", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));

gdk/x11/gdkdevicemanager-xi2.c

@@ -145,33 +145,25 @@ gdk_x11_device_manager_xi2_class_init (GdkX11DeviceManagerXI2Class *klass)
 
   g_object_class_install_property (object_class,
                                    PROP_DISPLAY,
-                                   g_param_spec_object ("display",
-                                                        "Display",
-                                                        "Display for the device manager",
+                                   g_param_spec_object ("display", NULL, NULL,
                                                         GDK_TYPE_DISPLAY,
                                                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                         G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (object_class,
                                    PROP_OPCODE,
-                                   g_param_spec_int ("opcode",
-                                                     P_("Opcode"),
-                                                     P_("Opcode for XInput2 requests"),
+                                   g_param_spec_int ("opcode", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (object_class,
                                    PROP_MAJOR,
-                                   g_param_spec_int ("major",
-                                                     P_("Major"),
-                                                     P_("Major version number"),
+                                   g_param_spec_int ("major", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (object_class,
                                    PROP_MINOR,
-                                   g_param_spec_int ("minor",
-                                                     P_("Minor"),
-                                                     P_("Minor version number"),
+                                   g_param_spec_int ("minor", NULL, NULL,
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
                                                      G_PARAM_STATIC_STRINGS));

gsk/gl/gskglprofiler.c

@@ -94,9 +94,7 @@ gsk_gl_profiler_class_init (GskGLProfilerClass *klass)
   gobject_class->finalize = gsk_gl_profiler_finalize;
 
   gsk_gl_profiler_properties[PROP_GL_CONTEXT] =
-    g_param_spec_object ("gl-context",
-                         "GL Context",
-                         "The GdkGLContext used by the GL profiler",
+    g_param_spec_object ("gl-context", NULL, NULL,
                          GDK_TYPE_GL_CONTEXT,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gsk/gl/gskglrenderer.c

@@ -158,6 +158,10 @@ failure:
 
   gdk_profiler_end_mark (start_time, "realize GskGLRenderer", NULL);
 
+  /* Assert either all or no state was set */
+  g_assert ((ret && self->driver != NULL && self->context != NULL && self->command_queue != NULL) ||
+            (!ret && self->driver == NULL && self->context == NULL && self->command_queue == NULL));
+
   return ret;
 }
 
@@ -403,11 +407,11 @@ gsk_gl_renderer_render_texture (GskRenderer           *renderer,
 static void
 gsk_gl_renderer_dispose (GObject *object)
 {
-#ifdef G_ENABLE_DEBUG
   GskGLRenderer *self = (GskGLRenderer *)object;
 
-  g_assert (self->driver == NULL);
-#endif
+  if (self->driver != NULL)
+    g_critical ("Attempt to dispose %s without calling gsk_renderer_unrealize()",
+                G_OBJECT_TYPE_NAME (self));
 
   G_OBJECT_CLASS (gsk_gl_renderer_parent_class)->dispose (object);
 }

gsk/gl/gskglshadowlibrary.c

@@ -127,9 +127,7 @@ gsk_gl_shadow_library_class_init (GskGLShadowLibraryClass *klass)
   object_class->set_property = gsk_gl_shadow_library_set_property;
 
   properties [PROP_DRIVER] =
-    g_param_spec_object ("driver",
-                         "Driver",
-                         "Driver",
+    g_param_spec_object ("driver", NULL, NULL,
                          GSK_TYPE_GL_DRIVER,
                          (G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 

gsk/gl/gskgltexturelibrary.c

@@ -256,9 +256,7 @@ gsk_gl_texture_library_class_init (GskGLTextureLibraryClass *klass)
   klass->allocate = gsk_gl_texture_library_real_allocate;
 
   properties [PROP_DRIVER] =
-    g_param_spec_object ("driver",
-                         "Driver",
-                         "Driver",
+    g_param_spec_object ("driver", NULL, NULL,
                          GSK_TYPE_GL_DRIVER,
                          (G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 

gsk/gskglshader.c

@@ -444,9 +444,7 @@ gsk_gl_shader_class_init (GskGLShaderClass *klass)
    * The source code for the shader, as a `GBytes`.
    */
   gsk_gl_shader_properties[GLSHADER_PROP_SOURCE] =
-    g_param_spec_boxed ("source",
-                        "Source",
-                        "The sourcecode for the shader",
+    g_param_spec_boxed ("source", NULL, NULL,
                         G_TYPE_BYTES,
                         G_PARAM_READWRITE |
                         G_PARAM_CONSTRUCT_ONLY |
@@ -461,9 +459,7 @@ gsk_gl_shader_class_init (GskGLShaderClass *klass)
    * will be %NULL.
    */
   gsk_gl_shader_properties[GLSHADER_PROP_RESOURCE] =
-    g_param_spec_string ("resource",
-                         "Resources",
-                         "Resource path to the source code",
+    g_param_spec_string ("resource", NULL, NULL,
                          NULL,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |

gsk/gskrenderer.c

@@ -192,9 +192,7 @@ gsk_renderer_class_init (GskRendererClass *klass)
    * Whether the renderer has been associated with a surface or draw context.
    */
   gsk_renderer_properties[PROP_REALIZED] =
-    g_param_spec_boolean ("realized",
-                          "Realized",
-                          "The renderer has been associated with a surface or draw context",
+    g_param_spec_boolean ("realized", NULL, NULL,
                           FALSE,
                           G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -204,9 +202,7 @@ gsk_renderer_class_init (GskRendererClass *klass)
    * The surface associated with renderer.
    */
   gsk_renderer_properties[PROP_SURFACE] =
-    g_param_spec_object ("surface",
-                         "Surface",
-                         "The surface associated to the renderer",
+    g_param_spec_object ("surface", NULL, NULL,
                          GDK_TYPE_SURFACE,
                          G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 

gsk/gskrendernodeparser.c

@@ -1102,7 +1102,7 @@ parse_conic_gradient_node (GtkCssParser *parser)
       g_array_append_val (stops, to);
     }
 
-  result = gsk_conic_gradient_node_new (&bounds, &center, rotation, 
+  result = gsk_conic_gradient_node_new (&bounds, &center, rotation,
                                         (GskColorStop *) stops->data, stops->len);
 
   g_array_free (stops, TRUE);
@@ -1388,7 +1388,7 @@ parse_cairo_node (GtkCssParser *parser)
   parse_declarations (parser, declarations, G_N_ELEMENTS(declarations));
 
   node = gsk_cairo_node_new (&bounds);
-  
+
   if (surface != NULL)
     {
       cairo_t *cr = gsk_cairo_node_get_draw_context (node);
@@ -2697,10 +2697,41 @@ render_node_print (Printer       *p,
         start_node (p, "texture");
         append_rect_param (p, "bounds", &node->bounds);
 
-        bytes = gdk_texture_save_to_png_bytes (texture);
-
         _indent (p);
-        g_string_append (p->str, "texture: url(\"data:image/png;base64,");
+
+        switch (gdk_texture_get_format (texture))
+          {
+          case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+          case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+          case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+          case GDK_MEMORY_B8G8R8A8:
+          case GDK_MEMORY_A8R8G8B8:
+          case GDK_MEMORY_R8G8B8A8:
+          case GDK_MEMORY_A8B8G8R8:
+          case GDK_MEMORY_R8G8B8:
+          case GDK_MEMORY_B8G8R8:
+          case GDK_MEMORY_R16G16B16:
+          case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+          case GDK_MEMORY_R16G16B16A16:
+            bytes = gdk_texture_save_to_png_bytes (texture);
+            g_string_append (p->str, "texture: url(\"data:image/png;base64,");
+            break;
+
+          case GDK_MEMORY_R16G16B16_FLOAT:
+          case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+          case GDK_MEMORY_R16G16B16A16_FLOAT:
+          case GDK_MEMORY_R32G32B32_FLOAT:
+          case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+          case GDK_MEMORY_R32G32B32A32_FLOAT:
+            bytes = gdk_texture_save_to_tiff_bytes (texture);
+            g_string_append (p->str, "texture: url(\"data:image/tiff;base64,");
+            break;
+
+          case GDK_MEMORY_N_FORMATS:
+          default:
+            g_assert_not_reached ();
+          }
+
         b64 = base64_encode_with_linebreaks (g_bytes_get_data (bytes, NULL),
                                              g_bytes_get_size (bytes));
         append_escaping_newlines (p->str, b64);

gtk/gtkaboutdialog.c

@@ -378,9 +378,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * `g_get_application_name()`.
    */
   props[PROP_NAME] =
-    g_param_spec_string ("program-name",
-                         P_("Program name"),
-                         P_("The name of the program. If this is not set, it defaults to g_get_application_name()"),
+    g_param_spec_string ("program-name", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -390,9 +388,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * The version of the program.
    */
   props[PROP_VERSION] =
-    g_param_spec_string ("version",
-                         P_("Program version"),
-                         P_("The version of the program"),
+    g_param_spec_string ("version", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -402,9 +398,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * Copyright information for the program.
    */
   props[PROP_COPYRIGHT] =
-    g_param_spec_string ("copyright",
-                         P_("Copyright string"),
-                         P_("Copyright information for the program"),
+    g_param_spec_string ("copyright", NULL, NULL,
                         NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -418,9 +412,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * not a detailed list of features.
    */
   props[PROP_COMMENTS] =
-    g_param_spec_string ("comments",
-                         P_("Comments string"),
-                         P_("Comments about the program"),
+    g_param_spec_string ("comments", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -443,9 +435,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * be converted into clickable links.
    */
   props[PROP_LICENSE] =
-    g_param_spec_string ("license",
-                         P_("License"),
-                         P_("The license of the program"),
+    g_param_spec_string ("license", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -463,9 +453,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * be converted into clickable links.
    */
   props[PROP_SYSTEM_INFORMATION] =
-    g_param_spec_string ("system-information",
-                         P_("System Information"),
-                         P_("Information about the system on which the program is running"),
+    g_param_spec_string ("system-information", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -489,9 +477,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * a side effect.
    */
   props[PROP_LICENSE_TYPE] =
-    g_param_spec_enum ("license-type",
-                       P_("License Type"),
-                       P_("The license type of the program"),
+    g_param_spec_enum ("license-type", NULL, NULL,
                        GTK_TYPE_LICENSE,
                        GTK_LICENSE_UNKNOWN,
                        GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
@@ -504,9 +490,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * This should be a string starting with `http://` or `https://`.
    */
   props[PROP_WEBSITE] =
-    g_param_spec_string ("website",
-                         P_("Website URL"),
-                         P_("The URL for the link to the website of the program"),
+    g_param_spec_string ("website", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -516,9 +500,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * The label for the link to the website of the program.
    */
   props[PROP_WEBSITE_LABEL] =
-    g_param_spec_string ("website-label",
-                         P_("Website label"),
-                         P_("The label for the link to the website of the program"),
+    g_param_spec_string ("website-label", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -531,9 +513,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * as links, see the introduction for more details.
    */
   props[PROP_AUTHORS] =
-    g_param_spec_boxed ("authors",
-                        P_("Authors"),
-                        P_("List of authors of the program"),
+    g_param_spec_boxed ("authors", NULL, NULL,
                         G_TYPE_STRV,
                         GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -546,9 +526,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * as links, see the introduction for more details.
    */
   props[PROP_DOCUMENTERS] =
-    g_param_spec_boxed ("documenters",
-                        P_("Documenters"),
-                        P_("List of people documenting the program"),
+    g_param_spec_boxed ("documenters", NULL, NULL,
                         G_TYPE_STRV,
                         GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -562,9 +540,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * as links.
    */
   props[PROP_ARTISTS] =
-    g_param_spec_boxed ("artists",
-                        P_("Artists"),
-                        P_("List of people who have contributed artwork to the program"),
+    g_param_spec_boxed ("artists", NULL, NULL,
                         G_TYPE_STRV,
                         GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -579,9 +555,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * as links, see the introduction for more details.
    */
   props[PROP_TRANSLATOR_CREDITS] =
-    g_param_spec_string ("translator-credits",
-                         P_("Translator credits"),
-                         P_("Credits to the translators. This string should be marked as translatable"),
+    g_param_spec_string ("translator-credits", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -594,9 +568,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * [id@gtk_window_set_default_icon_name] will be used.
    */
   props[PROP_LOGO] =
-    g_param_spec_object ("logo",
-                         P_("Logo"),
-                         P_("A logo for the about box."),
+    g_param_spec_object ("logo", NULL, NULL,
                          GDK_TYPE_PAINTABLE,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -608,9 +580,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * This property overrides the [property@Gtk.AboutDialog:logo] property.
    */
   props[PROP_LOGO_ICON_NAME] =
-    g_param_spec_string ("logo-icon-name",
-                         P_("Logo Icon Name"),
-                         P_("A named icon to use as the logo for the about box."),
+    g_param_spec_string ("logo-icon-name", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -620,9 +590,7 @@ gtk_about_dialog_class_init (GtkAboutDialogClass *klass)
    * Whether to wrap the text in the license dialog.
    */
   props[PROP_WRAP_LICENSE] =
-    g_param_spec_boolean ("wrap-license",
-                          P_("Wrap license"),
-                          P_("Whether to wrap the license text."),
+    g_param_spec_boolean ("wrap-license", NULL, NULL,
                           FALSE,
                           GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkaccessible.c

@@ -65,9 +65,7 @@ gtk_accessible_default_init (GtkAccessibleInterface *iface)
    * The accessible role cannot be changed once set.
    */
   GParamSpec *pspec =
-    g_param_spec_enum ("accessible-role",
-                       "Accessible Role",
-                       "The role of the accessible object",
+    g_param_spec_enum ("accessible-role", NULL, NULL,
                        GTK_TYPE_ACCESSIBLE_ROLE,
                        GTK_ACCESSIBLE_ROLE_NONE,
                        G_PARAM_READWRITE |

gtk/gtkactionable.c

@@ -58,13 +58,11 @@ static void
 gtk_actionable_default_init (GtkActionableInterface *iface)
 {
   g_object_interface_install_property (iface,
-    g_param_spec_string ("action-name", P_("Action name"),
-                         P_("The name of the associated action, like “app.quit”"),
+    g_param_spec_string ("action-name", NULL, NULL,
                          NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
   g_object_interface_install_property (iface,
-    g_param_spec_variant ("action-target", P_("Action target value"),
-                          P_("The parameter for action invocations"),
+    g_param_spec_variant ("action-target", NULL, NULL,
                           G_VARIANT_TYPE_ANY, NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 }
 

gtk/gtkactionbar.c

@@ -171,9 +171,7 @@ gtk_action_bar_class_init (GtkActionBarClass *klass)
    * Controls whether the action bar shows its contents.
    */
   props[PROP_REVEALED] =
-    g_param_spec_boolean ("revealed",
-                          P_("Reveal"),
-                          P_("Controls whether the action bar shows its contents or not"),
+    g_param_spec_boolean ("revealed", NULL, NULL,
                           TRUE,
                           GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkactionhelper.c

@@ -346,11 +346,11 @@ gtk_action_helper_class_init (GtkActionHelperClass *class)
   class->get_property = gtk_action_helper_get_property;
   class->finalize = gtk_action_helper_finalize;
 
-  gtk_action_helper_pspecs[PROP_ENABLED] = g_param_spec_boolean ("enabled", "enabled", "enabled", FALSE,
+  gtk_action_helper_pspecs[PROP_ENABLED] = g_param_spec_boolean ("enabled", NULL, NULL, FALSE,
                                                                  G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
-  gtk_action_helper_pspecs[PROP_ACTIVE] = g_param_spec_boolean ("active", "active", "active", FALSE,
+  gtk_action_helper_pspecs[PROP_ACTIVE] = g_param_spec_boolean ("active", NULL, NULL, FALSE,
                                                                 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
-  gtk_action_helper_pspecs[PROP_ROLE] = g_param_spec_enum ("role", "role", "role",
+  gtk_action_helper_pspecs[PROP_ROLE] = g_param_spec_enum ("role", NULL, NULL,
                                                            GTK_TYPE_BUTTON_ROLE,
                                                            GTK_BUTTON_ROLE_NORMAL,
                                                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

gtk/gtkactionmuxer.c

@@ -991,13 +991,15 @@ gtk_action_muxer_unregister_observer (GtkActionObservable *observable,
                                       GtkActionObserver   *observer)
 {
   GtkActionMuxer *muxer = GTK_ACTION_MUXER (observable);
-  Action *action;
+  Action *action = find_observers (muxer, name);
 
-  action = find_observers (muxer, name);
   if (action)
     {
-      g_object_weak_unref (G_OBJECT (observer), gtk_action_muxer_weak_notify, action);
-      gtk_action_muxer_unregister_internal (action, observer);
+      if (g_slist_find (action->watchers, observer) != NULL)
+        {
+          g_object_weak_unref (G_OBJECT (observer), gtk_action_muxer_weak_notify, action);
+          gtk_action_muxer_unregister_internal (action, observer);
+        }
     }
 }
 
@@ -1218,14 +1220,12 @@ gtk_action_muxer_class_init (GObjectClass *class)
   class->finalize = gtk_action_muxer_finalize;
   class->dispose = gtk_action_muxer_dispose;
 
-  properties[PROP_PARENT] = g_param_spec_object ("parent", "Parent",
-                                                 "The parent muxer",
+  properties[PROP_PARENT] = g_param_spec_object ("parent", NULL, NULL,
                                                  GTK_TYPE_ACTION_MUXER,
                                                  G_PARAM_READWRITE |
                                                  G_PARAM_STATIC_STRINGS);
 
-  properties[PROP_WIDGET] = g_param_spec_object ("widget", "Widget",
-                                                 "The widget that owns the muxer",
+  properties[PROP_WIDGET] = g_param_spec_object ("widget", NULL, NULL,
                                                  GTK_TYPE_WIDGET,
                                                  G_PARAM_READWRITE |
                                                  G_PARAM_CONSTRUCT_ONLY |
@@ -1269,7 +1269,7 @@ gtk_action_muxer_insert (GtkActionMuxer *muxer,
   if (!muxer->groups)
     muxer->groups = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gtk_action_muxer_free_group);
 
-  group = g_slice_new (Group);
+  group = g_slice_new0 (Group);
   group->muxer = muxer;
   group->group = g_object_ref (action_group);
   group->prefix = g_strdup (prefix);

gtk/gtkadjustment.c

@@ -137,9 +137,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * The value of the adjustment.
    */
   adjustment_props[PROP_VALUE] =
-      g_param_spec_double ("value",
-                           P_("Value"),
-                           P_("The value of the adjustment"),
+      g_param_spec_double ("value", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
@@ -150,9 +148,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * The minimum value of the adjustment.
    */
   adjustment_props[PROP_LOWER] =
-      g_param_spec_double ("lower",
-                           P_("Minimum Value"),
-                           P_("The minimum value of the adjustment"),
+      g_param_spec_double ("lower", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
@@ -166,9 +162,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * property is nonzero.
    */
   adjustment_props[PROP_UPPER] =
-      g_param_spec_double ("upper",
-                           P_("Maximum Value"),
-                           P_("The maximum value of the adjustment"),
+      g_param_spec_double ("upper", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
@@ -179,9 +173,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * The step increment of the adjustment.
    */
   adjustment_props[PROP_STEP_INCREMENT] =
-      g_param_spec_double ("step-increment",
-                           P_("Step Increment"),
-                           P_("The step increment of the adjustment"),
+      g_param_spec_double ("step-increment", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
@@ -192,9 +184,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * The page increment of the adjustment.
    */
   adjustment_props[PROP_PAGE_INCREMENT] =
-      g_param_spec_double ("page-increment",
-                           P_("Page Increment"),
-                           P_("The page increment of the adjustment"),
+      g_param_spec_double ("page-increment", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
@@ -209,9 +199,7 @@ gtk_adjustment_class_init (GtkAdjustmentClass *class)
    * `GtkSpinButton`.
    */
   adjustment_props[PROP_PAGE_SIZE] =
-      g_param_spec_double ("page-size",
-                           P_("Page Size"),
-                           P_("The page size of the adjustment"),
+      g_param_spec_double ("page-size", NULL, NULL,
                            -G_MAXDOUBLE, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);

gtk/gtkappchooser.c

@@ -67,9 +67,7 @@ gtk_app_chooser_default_init (GtkAppChooserIface *iface)
    *
    * See `GContentType` for more information about content types.
    */
-  pspec = g_param_spec_string ("content-type",
-                               P_("Content type"),
-                               P_("The content type used by the open with object"),
+  pspec = g_param_spec_string ("content-type", NULL, NULL,
                                NULL,
                                G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
                                G_PARAM_STATIC_STRINGS);

gtk/gtkappchooserbutton.c

@@ -682,9 +682,7 @@ gtk_app_chooser_button_class_init (GtkAppChooserButtonClass *klass)
    * a `GtkAppChooserDialog`.
    */
   properties[PROP_SHOW_DIALOG_ITEM] =
-    g_param_spec_boolean ("show-dialog-item",
-                          P_("Include an “Other…” item"),
-                          P_("Whether the combobox should include an item that triggers a GtkAppChooserDialog"),
+    g_param_spec_boolean ("show-dialog-item", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -695,9 +693,7 @@ gtk_app_chooser_button_class_init (GtkAppChooserButtonClass *klass)
    * on top for the provided content type.
    */
   properties[PROP_SHOW_DEFAULT_ITEM] =
-    g_param_spec_boolean ("show-default-item",
-                          P_("Show default item"),
-                          P_("Whether the combobox should show the default application on top"),
+    g_param_spec_boolean ("show-default-item", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -710,9 +706,7 @@ gtk_app_chooser_button_class_init (GtkAppChooserButtonClass *klass)
    * The string may contain Pango markup.
    */
   properties[PROP_HEADING] =
-    g_param_spec_string ("heading",
-                         P_("Heading"),
-                         P_("The text to show at the top of the dialog"),
+    g_param_spec_string ("heading", NULL, NULL,
                          NULL,
                          G_PARAM_READWRITE|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -722,9 +716,7 @@ gtk_app_chooser_button_class_init (GtkAppChooserButtonClass *klass)
    * Whether the app chooser dialog should be modal.
    */
   properties[PROP_MODAL] =
-    g_param_spec_boolean ("modal",
-                          P_("Modal"),
-                          P_("Whether the dialog should be modal"),
+    g_param_spec_boolean ("modal", NULL, NULL,
                           TRUE,
                           G_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_properties (oclass, NUM_PROPERTIES, properties);

gtk/gtkappchooserdialog.c

@@ -598,9 +598,7 @@ gtk_app_chooser_dialog_class_init (GtkAppChooserDialogClass *klass)
    * The dialog's `GtkAppChooserWidget` content type will
    * be guessed from the file, if present.
    */
-  pspec = g_param_spec_object ("gfile",
-                               P_("GFile"),
-                               P_("The GFile used by the app chooser dialog"),
+  pspec = g_param_spec_object ("gfile", NULL, NULL,
                                G_TYPE_FILE,
                                G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
                                G_PARAM_STATIC_STRINGS);
@@ -613,9 +611,7 @@ gtk_app_chooser_dialog_class_init (GtkAppChooserDialogClass *klass)
    *
    * The string may contain Pango markup.
    */
-  pspec = g_param_spec_string ("heading",
-                               P_("Heading"),
-                               P_("The text to show at the top of the dialog"),
+  pspec = g_param_spec_string ("heading", NULL, NULL,
                                NULL,
                                G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
                                G_PARAM_EXPLICIT_NOTIFY);

gtk/gtkappchooserwidget.c

@@ -906,9 +906,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * If %FALSE, the default handler is listed among the recommended
    * applications.
    */
-  pspec = g_param_spec_boolean ("show-default",
-                                P_("Show default app"),
-                                P_("Whether the widget should show the default application"),
+  pspec = g_param_spec_boolean ("show-default", NULL, NULL,
                                 FALSE,
                                 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_SHOW_DEFAULT, pspec);
@@ -922,9 +920,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * If %FALSE, the recommended applications are listed
    * among the other applications.
    */
-  pspec = g_param_spec_boolean ("show-recommended",
-                                P_("Show recommended apps"),
-                                P_("Whether the widget should show recommended applications"),
+  pspec = g_param_spec_boolean ("show-recommended", NULL, NULL,
                                 TRUE,
                                 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_SHOW_RECOMMENDED, pspec);
@@ -938,9 +934,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * If %FALSE, the fallback applications are listed among the
    * other applications.
    */
-  pspec = g_param_spec_boolean ("show-fallback",
-                                P_("Show fallback apps"),
-                                P_("Whether the widget should show fallback applications"),
+  pspec = g_param_spec_boolean ("show-fallback", NULL, NULL,
                                 FALSE,
                                 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_SHOW_FALLBACK, pspec);
@@ -951,9 +945,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * Determines whether the app chooser should show a section
    * for other applications.
    */
-  pspec = g_param_spec_boolean ("show-other",
-                                P_("Show other apps"),
-                                P_("Whether the widget should show other applications"),
+  pspec = g_param_spec_boolean ("show-other", NULL, NULL,
                                 FALSE,
                                 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_SHOW_OTHER, pspec);
@@ -965,9 +957,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * in a single list, without subsections for default,
    * recommended or related applications.
    */
-  pspec = g_param_spec_boolean ("show-all",
-                                P_("Show all apps"),
-                                P_("Whether the widget should show all applications"),
+  pspec = g_param_spec_boolean ("show-all", NULL, NULL,
                                 FALSE,
                                 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_SHOW_ALL, pspec);
@@ -978,9 +968,7 @@ gtk_app_chooser_widget_class_init (GtkAppChooserWidgetClass *klass)
    * The text that appears in the widget when there are no applications
    * for the given content type.
    */
-  pspec = g_param_spec_string ("default-text",
-                               P_("Widget’s default text"),
-                               P_("The default text appearing when there are no applications"),
+  pspec = g_param_spec_string ("default-text", NULL, NULL,
                                NULL,
                                G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_property (gobject_class, PROP_DEFAULT_TEXT, pspec);

gtk/gtkapplication.c

@@ -598,9 +598,7 @@ gtk_application_class_init (GtkApplicationClass *class)
    * [property@Gtk.Application:screensaver-active] property).
    */
   gtk_application_props[PROP_REGISTER_SESSION] =
-    g_param_spec_boolean ("register-session",
-                          P_("Register session"),
-                          P_("Register with the session manager"),
+    g_param_spec_boolean ("register-session", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE|G_PARAM_STATIC_STRINGS);
 
@@ -617,9 +615,7 @@ gtk_application_class_init (GtkApplicationClass *class)
    * Linux.
    */
   gtk_application_props[PROP_SCREENSAVER_ACTIVE] =
-    g_param_spec_boolean ("screensaver-active",
-                          P_("Screensaver Active"),
-                          P_("Whether the screensaver is active"),
+    g_param_spec_boolean ("screensaver-active", NULL, NULL,
                           FALSE,
                           G_PARAM_READABLE|G_PARAM_STATIC_STRINGS);
 
@@ -629,9 +625,7 @@ gtk_application_class_init (GtkApplicationClass *class)
    * The `GMenuModel` to be used for the application's menu bar.
    */
   gtk_application_props[PROP_MENUBAR] =
-    g_param_spec_object ("menubar",
-                         P_("Menubar"),
-                         P_("The GMenuModel for the menubar"),
+    g_param_spec_object ("menubar", NULL, NULL,
                          G_TYPE_MENU_MODEL,
                          G_PARAM_READWRITE|G_PARAM_STATIC_STRINGS);
 
@@ -641,9 +635,7 @@ gtk_application_class_init (GtkApplicationClass *class)
    * The currently focused window of the application.
    */
   gtk_application_props[PROP_ACTIVE_WINDOW] =
-    g_param_spec_object ("active-window",
-                         P_("Active window"),
-                         P_("The window which most recently had focus"),
+    g_param_spec_object ("active-window", NULL, NULL,
                          GTK_TYPE_WINDOW,
                          G_PARAM_READABLE|G_PARAM_STATIC_STRINGS);
 

gtk/gtkapplicationwindow.c

@@ -685,10 +685,7 @@ gtk_application_window_class_init (GtkApplicationWindowClass *class)
    * of whether the desktop shell is showing it or not.
    */
   gtk_application_window_properties[PROP_SHOW_MENUBAR] =
-    g_param_spec_boolean ("show-menubar",
-                          P_("Show a menubar"),
-                          P_("TRUE if the window should show a "
-                             "menubar at the top of the window"),
+    g_param_spec_boolean ("show-menubar", NULL, NULL,
                           FALSE, G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
   g_object_class_install_properties (object_class, N_PROPS, gtk_application_window_properties);
 }

gtk/gtkaspectframe.c

@@ -140,9 +140,7 @@ gtk_aspect_frame_class_init (GtkAspectFrameClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_XALIGN,
-                                   g_param_spec_float ("xalign",
-                                                       P_("Horizontal Alignment"),
-                                                       P_("X alignment of the child"),
+                                   g_param_spec_float ("xalign", NULL, NULL,
                                                        0.0, 1.0, 0.5,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   /**
@@ -152,9 +150,7 @@ gtk_aspect_frame_class_init (GtkAspectFrameClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_YALIGN,
-                                   g_param_spec_float ("yalign",
-                                                       P_("Vertical Alignment"),
-                                                       P_("Y alignment of the child"),
+                                   g_param_spec_float ("yalign", NULL, NULL,
                                                        0.0, 1.0, 0.5,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   /**
@@ -167,9 +163,7 @@ gtk_aspect_frame_class_init (GtkAspectFrameClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_RATIO,
-                                   g_param_spec_float ("ratio",
-                                                       P_("Ratio"),
-                                                       P_("Aspect ratio if obey_child is FALSE"),
+                                   g_param_spec_float ("ratio", NULL, NULL,
                                                        MIN_RATIO, MAX_RATIO, 1.0,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   /**
@@ -179,9 +173,7 @@ gtk_aspect_frame_class_init (GtkAspectFrameClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_OBEY_CHILD,
-                                   g_param_spec_boolean ("obey-child",
-                                                         P_("Obey child"),
-                                                         P_("Force aspect ratio to match that of the frame’s child"),
+                                   g_param_spec_boolean ("obey-child", NULL, NULL,
                                                          TRUE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   /**
@@ -191,9 +183,7 @@ gtk_aspect_frame_class_init (GtkAspectFrameClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_CHILD,
-                                   g_param_spec_object ("child",
-                                                        P_("Child"),
-                                                        P_("The child widget"),
+                                   g_param_spec_object ("child", NULL, NULL,
                                                         GTK_TYPE_WIDGET,
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkassistant.c

@@ -253,9 +253,7 @@ gtk_assistant_page_class_init (GtkAssistantPageClass *class)
    */
   g_object_class_install_property (object_class,
                                    CHILD_PROP_PAGE_TYPE,
-                                   g_param_spec_enum ("page-type",
-                                                      P_("Page type"),
-                                                      P_("The type of the assistant page"),
+                                   g_param_spec_enum ("page-type", NULL, NULL,
                                                       GTK_TYPE_ASSISTANT_PAGE_TYPE,
                                                       GTK_ASSISTANT_PAGE_CONTENT,
                                                       GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
@@ -267,9 +265,7 @@ gtk_assistant_page_class_init (GtkAssistantPageClass *class)
    */
   g_object_class_install_property (object_class,
                                    CHILD_PROP_PAGE_TITLE,
-                                   g_param_spec_string ("title",
-                                                        P_("Page title"),
-                                                        P_("The title of the assistant page"),
+                                   g_param_spec_string ("title", NULL, NULL,
                                                         NULL,
                                                         GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -283,9 +279,7 @@ gtk_assistant_page_class_init (GtkAssistantPageClass *class)
    */
   g_object_class_install_property (object_class,
                                    CHILD_PROP_PAGE_COMPLETE,
-                                   g_param_spec_boolean ("complete",
-                                                         P_("Page complete"),
-                                                         P_("Whether all required fields on the page have been filled out"),
+                                   g_param_spec_boolean ("complete", NULL, NULL,
                                                          FALSE,
                                                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
 
@@ -296,9 +290,7 @@ gtk_assistant_page_class_init (GtkAssistantPageClass *class)
    */
   g_object_class_install_property (object_class,
                                    CHILD_PROP_CHILD,
-                                   g_param_spec_object ("child",
-                                                        P_("Child widget"),
-                                                        P_("The content the assistant page"),
+                                   g_param_spec_object ("child", NULL, NULL,
                                                         GTK_TYPE_WIDGET,
                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 }
@@ -604,9 +596,7 @@ gtk_assistant_class_init (GtkAssistantClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_USE_HEADER_BAR,
-                                   g_param_spec_int ("use-header-bar",
-                                                     P_("Use Header Bar"),
-                                                     P_("Use Header Bar for actions."),
+                                   g_param_spec_int ("use-header-bar", NULL, NULL,
                                                      -1, 1, -1,
                                                      GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
 
@@ -617,9 +607,7 @@ gtk_assistant_class_init (GtkAssistantClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_PAGES,
-                                   g_param_spec_object ("pages",
-                                                        P_("Pages"),
-                                                        P_("The pages of the assistant."),
+                                   g_param_spec_object ("pages", NULL, NULL,
                                                         G_TYPE_LIST_MODEL,
                                                         GTK_PARAM_READABLE));
 

gtk/gtkatcontext.c

@@ -209,9 +209,7 @@ gtk_at_context_class_init (GtkATContextClass *klass)
    * set or retrieved.
    */
   obj_props[PROP_ACCESSIBLE_ROLE] =
-    g_param_spec_enum ("accessible-role",
-                       "Accessible Role",
-                       "The accessible role of the AT context",
+    g_param_spec_enum ("accessible-role", NULL, NULL,
                        GTK_TYPE_ACCESSIBLE_ROLE,
                        GTK_ACCESSIBLE_ROLE_NONE,
                        G_PARAM_READWRITE |
@@ -224,9 +222,7 @@ gtk_at_context_class_init (GtkATContextClass *klass)
    * The `GtkAccessible` that created the `GtkATContext` instance.
    */
   obj_props[PROP_ACCESSIBLE] =
-    g_param_spec_object ("accessible",
-                         "Accessible",
-                         "The accessible implementation",
+    g_param_spec_object ("accessible", NULL, NULL,
                          GTK_TYPE_ACCESSIBLE,
                          G_PARAM_READWRITE |
                          G_PARAM_CONSTRUCT_ONLY |
@@ -238,9 +234,7 @@ gtk_at_context_class_init (GtkATContextClass *klass)
    * The `GdkDisplay` for the `GtkATContext`.
    */
   obj_props[PROP_DISPLAY] =
-    g_param_spec_object ("display",
-                         "Display",
-                         "The display connection",
+    g_param_spec_object ("display", NULL, NULL,
                          GDK_TYPE_DISPLAY,
                          G_PARAM_READWRITE |
                          G_PARAM_STATIC_STRINGS |

gtk/gtkbookmarklist.c

@@ -213,9 +213,7 @@ gtk_bookmark_list_class_init (GtkBookmarkListClass *class)
    * The bookmark file to load.
    */
   properties[PROP_FILENAME] =
-      g_param_spec_string ("filename",
-                           P_("Filename"),
-                           P_("Bookmark file to load"),
+      g_param_spec_string ("filename", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
   /**
@@ -224,9 +222,7 @@ gtk_bookmark_list_class_init (GtkBookmarkListClass *class)
    * The attributes to query.
    */
   properties[PROP_ATTRIBUTES] =
-      g_param_spec_string ("attributes",
-                           P_("Attributes"),
-                           P_("Attributes to query"),
+      g_param_spec_string ("attributes", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -236,9 +232,7 @@ gtk_bookmark_list_class_init (GtkBookmarkListClass *class)
    * Priority used when loading.
    */
   properties[PROP_IO_PRIORITY] =
-      g_param_spec_int ("io-priority",
-                        P_("IO priority"),
-                        P_("Priority used when loading"),
+      g_param_spec_int ("io-priority", NULL, NULL,
                         -G_MAXINT, G_MAXINT, G_PRIORITY_DEFAULT,
                         GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -248,9 +242,7 @@ gtk_bookmark_list_class_init (GtkBookmarkListClass *class)
    * %TRUE if files are being loaded.
    */
   properties[PROP_LOADING] =
-      g_param_spec_boolean ("loading",
-                            P_("loading"),
-                            P_("TRUE if files are being loaded"),
+      g_param_spec_boolean ("loading", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkboolfilter.c

@@ -159,9 +159,7 @@ gtk_bool_filter_class_init (GtkBoolFilterClass *class)
    * The boolean expression to evaluate on item.
    */
   properties[PROP_EXPRESSION] =
-    gtk_param_spec_expression ("expression",
-                               P_("Expression"),
-                               P_("Expression to evaluate"),
+    gtk_param_spec_expression ("expression", NULL, NULL,
                                G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
 
   /**
@@ -170,9 +168,7 @@ gtk_bool_filter_class_init (GtkBoolFilterClass *class)
    * If the expression result should be inverted.
    */
   properties[PROP_INVERT] =
-      g_param_spec_boolean ("invert",
-                            P_("Invert"),
-                            P_("If the expression result should be inverted"),
+      g_param_spec_boolean ("invert", NULL, NULL,
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkbox.c

@@ -258,9 +258,7 @@ gtk_box_class_init (GtkBoxClass *class)
    * The amount of space between children.
    */
   props[PROP_SPACING] =
-    g_param_spec_int ("spacing",
-                      P_("Spacing"),
-                      P_("The amount of space between children"),
+    g_param_spec_int ("spacing", NULL, NULL,
                       0, G_MAXINT, 0,
                       GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -270,9 +268,7 @@ gtk_box_class_init (GtkBoxClass *class)
    * Whether the children should all be the same size.
    */
   props[PROP_HOMOGENEOUS] =
-    g_param_spec_boolean ("homogeneous",
-                          P_("Homogeneous"),
-                          P_("Whether the children should all be the same size"),
+    g_param_spec_boolean ("homogeneous", NULL, NULL,
                           FALSE,
                           GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -282,9 +278,7 @@ gtk_box_class_init (GtkBoxClass *class)
    * The position of the baseline aligned widgets if extra space is available.
    */
   props[PROP_BASELINE_POSITION] =
-    g_param_spec_enum ("baseline-position",
-                       P_("Baseline position"),
-                       P_("The position of the baseline aligned widgets if extra space is available"),
+    g_param_spec_enum ("baseline-position", NULL, NULL,
                        GTK_TYPE_BASELINE_POSITION,
                        GTK_BASELINE_POSITION_CENTER,
                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);

gtk/gtkboxlayout.c

@@ -896,9 +896,7 @@ gtk_box_layout_class_init (GtkBoxLayoutClass *klass)
    * equally among the children.
    */
   box_layout_props[PROP_HOMOGENEOUS] =
-    g_param_spec_boolean ("homogeneous",
-                          P_("Homogeneous"),
-                          P_("Distribute space homogeneously"),
+    g_param_spec_boolean ("homogeneous", NULL, NULL,
                           FALSE,
                           GTK_PARAM_READWRITE |
                           G_PARAM_EXPLICIT_NOTIFY);
@@ -909,9 +907,7 @@ gtk_box_layout_class_init (GtkBoxLayoutClass *klass)
    * The space to put between the children.
    */
   box_layout_props[PROP_SPACING] =
-    g_param_spec_int ("spacing",
-                      P_("Spacing"),
-                      P_("Spacing between widgets"),
+    g_param_spec_int ("spacing", NULL, NULL,
                       0, G_MAXINT, 0,
                       GTK_PARAM_READWRITE |
                       G_PARAM_EXPLICIT_NOTIFY);
@@ -926,9 +922,7 @@ gtk_box_layout_class_init (GtkBoxLayoutClass *klass)
    * at least one child with a baseline alignment.
    */
   box_layout_props[PROP_BASELINE_POSITION] =
-    g_param_spec_enum ("baseline-position",
-                       P_("Baseline position"),
-                       P_("The position of the baseline aligned widgets if extra space is available"),
+    g_param_spec_enum ("baseline-position", NULL, NULL,
                        GTK_TYPE_BASELINE_POSITION,
                        GTK_BASELINE_POSITION_CENTER,
                        GTK_PARAM_READWRITE |

gtk/gtkbuilder.c

@@ -305,9 +305,7 @@ gtk_builder_class_init (GtkBuilderClass *klass)
   * otherwise g_dgettext().
   */
   builder_props[PROP_TRANSLATION_DOMAIN] =
-      g_param_spec_string ("translation-domain",
-                           P_("Translation Domain"),
-                           P_("The translation domain used by gettext"),
+      g_param_spec_string ("translation-domain", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
@@ -317,9 +315,7 @@ gtk_builder_class_init (GtkBuilderClass *klass)
   * The object the builder is evaluating for.
   */
   builder_props[PROP_CURRENT_OBJECT] =
-      g_param_spec_object ("current-object",
-                           P_("Current object"),
-                           P_("The object the builder is evaluating for"),
+      g_param_spec_object ("current-object", NULL, NULL,
                            G_TYPE_OBJECT,
                            GTK_PARAM_READWRITE);
 
@@ -329,9 +325,7 @@ gtk_builder_class_init (GtkBuilderClass *klass)
   * The scope the builder is operating in
   */
   builder_props[PROP_SCOPE] =
-      g_param_spec_object ("scope",
-                           P_("Scope"),
-                           P_("The scope the builder is operating in"),
+      g_param_spec_object ("scope", NULL, NULL,
                            GTK_TYPE_BUILDER_SCOPE,
                            GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT);
 

gtk/gtkbuilderlistitemfactory.c

@@ -264,9 +264,7 @@ gtk_builder_list_item_factory_class_init (GtkBuilderListItemFactoryClass *klass)
    * `GBytes` containing the UI definition.
    */
   properties[PROP_BYTES] =
-    g_param_spec_boxed ("bytes",
-                        P_("Bytes"),
-                        P_("bytes containing the UI definition"),
+    g_param_spec_boxed ("bytes", NULL, NULL,
                         G_TYPE_BYTES,
                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -276,9 +274,7 @@ gtk_builder_list_item_factory_class_init (GtkBuilderListItemFactoryClass *klass)
    * Path of the resource containing the UI definition.
    */
   properties[PROP_RESOURCE] =
-    g_param_spec_string ("resource",
-                         P_("Resource"),
-                         P_("resource containing the UI definition"),
+    g_param_spec_string ("resource", NULL, NULL,
                          NULL,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
@@ -288,9 +284,7 @@ gtk_builder_list_item_factory_class_init (GtkBuilderListItemFactoryClass *klass)
    * `GtkBuilderScope` to use when instantiating listitems
    */
   properties[PROP_SCOPE] =
-    g_param_spec_object ("scope",
-                         P_("Scope"),
-                         P_("scope to use when instantiating listitems"),
+    g_param_spec_object ("scope", NULL, NULL,
                          GTK_TYPE_BUILDER_SCOPE,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 

gtk/gtkbutton.c

@@ -218,9 +218,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * Text of the label inside the button, if the button contains a label widget.
    */
   props[PROP_LABEL] =
-    g_param_spec_string ("label",
-                         P_("Label"),
-                         P_("Text of the label widget inside the button, if the button contains a label widget"),
+    g_param_spec_string ("label", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -231,9 +229,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * to be used as mnemonic.
    */
   props[PROP_USE_UNDERLINE] =
-    g_param_spec_boolean ("use-underline",
-                          P_("Use underline"),
-                          P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
+    g_param_spec_boolean ("use-underline", NULL, NULL,
                           FALSE,
                           GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -243,9 +239,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * Whether the button has a frame.
    */
   props[PROP_HAS_FRAME] =
-    g_param_spec_boolean ("has-frame",
-                          P_("Has Frame"),
-                          P_("Whether the button has a frame"),
+    g_param_spec_boolean ("has-frame", NULL, NULL,
                           TRUE,
                           GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -255,9 +249,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * The name of the icon used to automatically populate the button.
    */
   props[PROP_ICON_NAME] =
-    g_param_spec_string ("icon-name",
-                         P_("Icon Name"),
-                         P_("The name of the icon used to automatically populate the button"),
+    g_param_spec_string ("icon-name", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -267,9 +259,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * The child widget.
    */
   props[PROP_CHILD] =
-    g_param_spec_object ("child",
-                         P_("Child"),
-                         P_("The child widget"),
+    g_param_spec_object ("child", NULL, NULL,
                          GTK_TYPE_WIDGET,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkcalendar.c

@@ -372,9 +372,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_YEAR,
-                                   g_param_spec_int ("year",
-                                                     P_("Year"),
-                                                     P_("The selected year"),
+                                   g_param_spec_int ("year", NULL, NULL,
                                                      1, 9999, 1,
                                                      G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -387,9 +385,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_MONTH,
-                                   g_param_spec_int ("month",
-                                                     P_("Month"),
-                                                     P_("The selected month (as a number between 0 and 11)"),
+                                   g_param_spec_int ("month", NULL, NULL,
                                                      0, 11, 0,
                                                      G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -400,9 +396,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_DAY,
-                                   g_param_spec_int ("day",
-                                                     P_("Day"),
-                                                     P_("The selected day (as a number between 1 and 31)"),
+                                   g_param_spec_int ("day", NULL, NULL,
                                                      1, 31, 1,
                                                      G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -413,9 +407,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_SHOW_HEADING,
-                                   g_param_spec_boolean ("show-heading",
-                                                         P_("Show Heading"),
-                                                         P_("If TRUE, a heading is displayed"),
+                                   g_param_spec_boolean ("show-heading", NULL, NULL,
                                                          TRUE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -426,9 +418,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_SHOW_DAY_NAMES,
-                                   g_param_spec_boolean ("show-day-names",
-                                                         P_("Show Day Names"),
-                                                         P_("If TRUE, day names are displayed"),
+                                   g_param_spec_boolean ("show-day-names", NULL, NULL,
                                                          TRUE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   /**
@@ -438,9 +428,7 @@ gtk_calendar_class_init (GtkCalendarClass *class)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_SHOW_WEEK_NUMBERS,
-                                   g_param_spec_boolean ("show-week-numbers",
-                                                         P_("Show Week Numbers"),
-                                                         P_("If TRUE, week numbers are displayed"),
+                                   g_param_spec_boolean ("show-week-numbers", NULL, NULL,
                                                          FALSE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcellarea.c

@@ -774,9 +774,7 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_FOCUS_CELL,
-                                   g_param_spec_object ("focus-cell",
-                                                        P_("Focus Cell"),
-                                                        P_("The cell which currently has focus"),
+                                   g_param_spec_object ("focus-cell", NULL, NULL,
                                                         GTK_TYPE_CELL_RENDERER,
                                                         GTK_PARAM_READWRITE));
 
@@ -790,9 +788,7 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_EDITED_CELL,
-                                   g_param_spec_object ("edited-cell",
-                                                        P_("Edited Cell"),
-                                                        P_("The cell which is currently being edited"),
+                                   g_param_spec_object ("edited-cell", NULL, NULL,
                                                         GTK_TYPE_CELL_RENDERER,
                                                         GTK_PARAM_READABLE));
 
@@ -806,9 +802,7 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_EDIT_WIDGET,
-                                   g_param_spec_object ("edit-widget",
-                                                        P_("Edit Widget"),
-                                                        P_("The widget currently editing the edited cell"),
+                                   g_param_spec_object ("edit-widget", NULL, NULL,
                                                         GTK_TYPE_CELL_EDITABLE,
                                                         GTK_PARAM_READABLE));
 

gtk/gtkcellareabox.c

@@ -312,9 +312,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_SPACING,
-                                   g_param_spec_int ("spacing",
-                                                     P_("Spacing"),
-                                                     P_("Space which is inserted between cells"),
+                                   g_param_spec_int ("spacing", NULL, NULL,
                                                      0,
                                                      G_MAXINT,
                                                      0,
@@ -330,9 +328,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
   gtk_cell_area_class_install_cell_property (area_class,
                                              CELL_PROP_EXPAND,
                                              g_param_spec_boolean
-                                             ("expand",
-                                              P_("Expand"),
-                                              P_("Whether the cell expands"),
+                                             ("expand", NULL, NULL,
                                               FALSE,
                                               GTK_PARAM_READWRITE));
 
@@ -344,9 +340,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
   gtk_cell_area_class_install_cell_property (area_class,
                                              CELL_PROP_ALIGN,
                                              g_param_spec_boolean
-                                             ("align",
-                                              P_("Align"),
-                                              P_("Whether cell should align with adjacent rows"),
+                                             ("align", NULL, NULL,
                                               FALSE,
                                               GTK_PARAM_READWRITE));
 
@@ -359,9 +353,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
   gtk_cell_area_class_install_cell_property (area_class,
                                              CELL_PROP_FIXED_SIZE,
                                              g_param_spec_boolean
-                                             ("fixed-size",
-                                              P_("Fixed Size"),
-                                              P_("Whether cells should be the same size in all rows"),
+                                             ("fixed-size", NULL, NULL,
                                               TRUE,
                                               GTK_PARAM_READWRITE));
 
@@ -374,10 +366,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
   gtk_cell_area_class_install_cell_property (area_class,
                                              CELL_PROP_PACK_TYPE,
                                              g_param_spec_enum
-                                             ("pack-type",
-                                              P_("Pack Type"),
-                                              P_("A GtkPackType indicating whether the cell is packed with "
-                                                 "reference to the start or end of the cell area"),
+                                             ("pack-type", NULL, NULL,
                                               GTK_TYPE_PACK_TYPE, GTK_PACK_START,
                                               GTK_PARAM_READWRITE));
 }

gtk/gtkcellareacontext.c

@@ -109,9 +109,7 @@ gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_CELL_AREA,
-                                   g_param_spec_object ("area",
-                                                        P_("Area"),
-                                                        P_("The Cell Area this context was created for"),
+                                   g_param_spec_object ("area", NULL, NULL,
                                                         GTK_TYPE_CELL_AREA,
                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 
@@ -124,9 +122,7 @@ gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_MIN_WIDTH,
-                                   g_param_spec_int ("minimum-width",
-                                                     P_("Minimum Width"),
-                                                     P_("Minimum cached width"),
+                                   g_param_spec_int ("minimum-width", NULL, NULL,
                                                      -1, G_MAXINT, -1,
                                                      GTK_PARAM_READABLE));
 
@@ -139,9 +135,7 @@ gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_NAT_WIDTH,
-                                   g_param_spec_int ("natural-width",
-                                                     P_("Minimum Width"),
-                                                     P_("Minimum cached width"),
+                                   g_param_spec_int ("natural-width", NULL, NULL,
                                                      -1, G_MAXINT, -1,
                                                      GTK_PARAM_READABLE));
 
@@ -154,9 +148,7 @@ gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_MIN_HEIGHT,
-                                   g_param_spec_int ("minimum-height",
-                                                     P_("Minimum Height"),
-                                                     P_("Minimum cached height"),
+                                   g_param_spec_int ("minimum-height", NULL, NULL,
                                                      -1, G_MAXINT, -1,
                                                      GTK_PARAM_READABLE));
 
@@ -169,9 +161,7 @@ gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_NAT_HEIGHT,
-                                   g_param_spec_int ("natural-height",
-                                                     P_("Minimum Height"),
-                                                     P_("Minimum cached height"),
+                                   g_param_spec_int ("natural-height", NULL, NULL,
                                                      -1, G_MAXINT, -1,
                                                      GTK_PARAM_READABLE));
 }

gtk/gtkcelleditable.c

@@ -44,9 +44,7 @@ gtk_cell_editable_default_init (GtkCellEditableInterface *iface)
    * Indicates whether editing on the cell has been canceled.
    */
   g_object_interface_install_property (iface,
-                                       g_param_spec_boolean ("editing-canceled",
-                                       P_("Editing Canceled"),
-                                       P_("Indicates that editing has been canceled"),
+                                       g_param_spec_boolean ("editing-canceled", NULL, NULL,
                                        FALSE,
                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcellrenderer.c

@@ -277,33 +277,25 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_MODE,
-				   g_param_spec_enum ("mode",
-						      P_("mode"),
-						      P_("Editable mode of the CellRenderer"),
+				   g_param_spec_enum ("mode", NULL, NULL,
 						      GTK_TYPE_CELL_RENDERER_MODE,
 						      GTK_CELL_RENDERER_MODE_INERT,
 						      GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   g_object_class_install_property (object_class,
 				   PROP_VISIBLE,
-				   g_param_spec_boolean ("visible",
-							 P_("visible"),
-							 P_("Display the cell"),
+				   g_param_spec_boolean ("visible", NULL, NULL,
 							 TRUE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   g_object_class_install_property (object_class,
 				   PROP_SENSITIVE,
-				   g_param_spec_boolean ("sensitive",
-							 P_("Sensitive"),
-							 P_("Display the cell sensitive"),
+				   g_param_spec_boolean ("sensitive", NULL, NULL,
 							 TRUE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   g_object_class_install_property (object_class,
 				   PROP_XALIGN,
-				   g_param_spec_float ("xalign",
-						       P_("xalign"),
-						       P_("The x-align"),
+				   g_param_spec_float ("xalign", NULL, NULL,
 						       0.0,
 						       1.0,
 						       0.5,
@@ -311,9 +303,7 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_YALIGN,
-				   g_param_spec_float ("yalign",
-						       P_("yalign"),
-						       P_("The y-align"),
+				   g_param_spec_float ("yalign", NULL, NULL,
 						       0.0,
 						       1.0,
 						       0.5,
@@ -321,9 +311,7 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_XPAD,
-				   g_param_spec_uint ("xpad",
-						      P_("xpad"),
-						      P_("The xpad"),
+				   g_param_spec_uint ("xpad", NULL, NULL,
 						      0,
 						      G_MAXUINT,
 						      0,
@@ -331,9 +319,7 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_YPAD,
-				   g_param_spec_uint ("ypad",
-						      P_("ypad"),
-						      P_("The ypad"),
+				   g_param_spec_uint ("ypad", NULL, NULL,
 						      0,
 						      G_MAXUINT,
 						      0,
@@ -341,9 +327,7 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_WIDTH,
-				   g_param_spec_int ("width",
-						     P_("width"),
-						     P_("The fixed width"),
+				   g_param_spec_int ("width", NULL, NULL,
 						     -1,
 						     G_MAXINT,
 						     -1,
@@ -351,9 +335,7 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_HEIGHT,
-				   g_param_spec_int ("height",
-						     P_("height"),
-						     P_("The fixed height"),
+				   g_param_spec_int ("height", NULL, NULL,
 						     -1,
 						     G_MAXINT,
 						     -1,
@@ -361,26 +343,20 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_IS_EXPANDER,
-				   g_param_spec_boolean ("is-expander",
-							 P_("Is Expander"),
-							 P_("Row has children"),
+				   g_param_spec_boolean ("is-expander", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
 
   g_object_class_install_property (object_class,
 				   PROP_IS_EXPANDED,
-				   g_param_spec_boolean ("is-expanded",
-							 P_("Is Expanded"),
-							 P_("Row is an expander row, and is expanded"),
+				   g_param_spec_boolean ("is-expanded", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   g_object_class_install_property (object_class,
 				   PROP_CELL_BACKGROUND,
-				   g_param_spec_string ("cell-background",
-							P_("Cell background color name"),
-							P_("Cell background color as a string"),
+				   g_param_spec_string ("cell-background", NULL, NULL,
 							NULL,
 							GTK_PARAM_WRITABLE));
 
@@ -391,26 +367,20 @@ gtk_cell_renderer_class_init (GtkCellRendererClass *class)
    */
   g_object_class_install_property (object_class,
 				   PROP_CELL_BACKGROUND_RGBA,
-				   g_param_spec_boxed ("cell-background-rgba",
-						       P_("Cell background RGBA color"),
-						       P_("Cell background color as a GdkRGBA"),
+				   g_param_spec_boxed ("cell-background-rgba", NULL, NULL,
 						       GDK_TYPE_RGBA,
 						       GTK_PARAM_READWRITE));
 
   g_object_class_install_property (object_class,
 				   PROP_EDITING,
-				   g_param_spec_boolean ("editing",
-							 P_("Editing"),
-							 P_("Whether the cell renderer is currently in editing mode"),
+				   g_param_spec_boolean ("editing", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READABLE));
 
 
 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY))
 
-  ADD_SET_PROP ("cell-background-set", PROP_CELL_BACKGROUND_SET,
-                P_("Cell background set"),
-                P_("Whether the cell background color is set"));
+  ADD_SET_PROP ("cell-background-set", PROP_CELL_BACKGROUND_SET, NULL, NULL);
 
   if (GtkCellRenderer_private_offset != 0)
     g_type_class_adjust_private_offset (class, &GtkCellRenderer_private_offset);

gtk/gtkcellrendereraccel.c

@@ -171,9 +171,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_ACCEL_KEY,
-                                   g_param_spec_uint ("accel-key",
-                                                     P_("Accelerator key"),
-                                                     P_("The keyval of the accelerator"),
+                                   g_param_spec_uint ("accel-key", NULL, NULL,
                                                       0,
                                                       G_MAXINT,
                                                       0,
@@ -186,9 +184,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_ACCEL_MODS,
-                                   g_param_spec_flags ("accel-mods",
-                                                       P_("Accelerator modifiers"),
-                                                       P_("The modifier mask of the accelerator"),
+                                   g_param_spec_flags ("accel-mods", NULL, NULL,
                                                        GDK_TYPE_MODIFIER_TYPE,
                                                        0,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
@@ -202,9 +198,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
    */ 
   g_object_class_install_property (object_class,
                                    PROP_KEYCODE,
-                                   g_param_spec_uint ("keycode",
-                                                      P_("Accelerator keycode"),
-                                                      P_("The hardware keycode of the accelerator"),
+                                   g_param_spec_uint ("keycode", NULL, NULL,
                                                       0,
                                                       G_MAXINT,
                                                       0,
@@ -220,9 +214,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
    */
   g_object_class_install_property (object_class,
                                    PROP_ACCEL_MODE,
-                                   g_param_spec_enum ("accel-mode",
-                                                      P_("Accelerator Mode"),
-                                                      P_("The type of accelerators"),
+                                   g_param_spec_enum ("accel-mode", NULL, NULL,
                                                       GTK_TYPE_CELL_RENDERER_ACCEL_MODE,
                                                       GTK_CELL_RENDERER_ACCEL_MODE_GTK,
                                                       GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));

gtk/gtkcellrenderercombo.c

@@ -130,9 +130,7 @@ gtk_cell_renderer_combo_class_init (GtkCellRendererComboClass *klass)
    */
   g_object_class_install_property (object_class,
 				   PROP_MODEL,
-				   g_param_spec_object ("model",
-							P_("Model"),
-							P_("The model containing the possible values for the combo box"),
+				   g_param_spec_object ("model", NULL, NULL,
 							GTK_TYPE_TREE_MODEL,
 							GTK_PARAM_READWRITE));
 
@@ -151,9 +149,7 @@ gtk_cell_renderer_combo_class_init (GtkCellRendererComboClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_TEXT_COLUMN,
-                                   g_param_spec_int ("text-column",
-                                                     P_("Text Column"),
-                                                     P_("A column in the data source model to get the strings from"),
+                                   g_param_spec_int ("text-column", NULL, NULL,
                                                      -1,
                                                      G_MAXINT,
                                                      -1,
@@ -167,9 +163,7 @@ gtk_cell_renderer_combo_class_init (GtkCellRendererComboClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_HAS_ENTRY,
-                                   g_param_spec_boolean ("has-entry",
-							 P_("Has Entry"),
-							 P_("If FALSE, don’t allow to enter strings other than the chosen ones"),
+                                   g_param_spec_boolean ("has-entry", NULL, NULL,
 							 TRUE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcellrendererpixbuf.c

@@ -194,25 +194,19 @@ gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
 
   g_object_class_install_property (object_class,
 				   PROP_PIXBUF,
-				   g_param_spec_object ("pixbuf",
-							P_("Pixbuf Object"),
-							P_("The pixbuf to render"),
+				   g_param_spec_object ("pixbuf", NULL, NULL,
 							GDK_TYPE_PIXBUF,
 							GTK_PARAM_WRITABLE));
 
   g_object_class_install_property (object_class,
 				   PROP_PIXBUF_EXPANDER_OPEN,
-				   g_param_spec_object ("pixbuf-expander-open",
-							P_("Pixbuf Expander Open"),
-							P_("Pixbuf for open expander"),
+				   g_param_spec_object ("pixbuf-expander-open", NULL, NULL,
 							GDK_TYPE_PIXBUF,
 							GTK_PARAM_READWRITE));
 
   g_object_class_install_property (object_class,
 				   PROP_PIXBUF_EXPANDER_CLOSED,
-				   g_param_spec_object ("pixbuf-expander-closed",
-							P_("Pixbuf Expander Closed"),
-							P_("Pixbuf for closed expander"),
+				   g_param_spec_object ("pixbuf-expander-closed", NULL, NULL,
 							GDK_TYPE_PIXBUF,
 							GTK_PARAM_READWRITE));
 
@@ -221,9 +215,7 @@ gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
    */
   g_object_class_install_property (object_class,
 				   PROP_TEXTURE,
-				   g_param_spec_object ("texture",
-						        P_("Texture"),
-						        P_("The texture to render"),
+				   g_param_spec_object ("texture", NULL, NULL,
                                                         GDK_TYPE_TEXTURE,
 						        GTK_PARAM_READWRITE));
 
@@ -234,9 +226,7 @@ gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
    */
   g_object_class_install_property (object_class,
 				   PROP_ICON_SIZE,
-				   g_param_spec_enum ("icon-size",
-						      P_("Icon Size"),
-						      P_("The GtkIconSize value that specifies the size of the rendered icon"),
+				   g_param_spec_enum ("icon-size", NULL, NULL,
                                                       GTK_TYPE_ICON_SIZE,
 						      GTK_ICON_SIZE_INHERIT,
 						      GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
@@ -249,9 +239,7 @@ gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
    */
   g_object_class_install_property (object_class,
 				   PROP_ICON_NAME,
-				   g_param_spec_string ("icon-name",
-							P_("Icon Name"),
-							P_("The name of the icon from the icon theme"),
+				   g_param_spec_string ("icon-name", NULL, NULL,
 							NULL,
 							GTK_PARAM_READWRITE));
 
@@ -264,9 +252,7 @@ gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
    */
   g_object_class_install_property (object_class,
                                    PROP_GICON,
-                                   g_param_spec_object ("gicon",
-                                                        P_("Icon"),
-                                                        P_("The GIcon being displayed"),
+                                   g_param_spec_object ("gicon", NULL, NULL,
                                                         G_TYPE_ICON,
                                                         GTK_PARAM_READWRITE));
 }

gtk/gtkcellrendererprogress.c

@@ -617,9 +617,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
    **/
   g_object_class_install_property (object_class,
 				   PROP_VALUE,
-				   g_param_spec_int ("value",
-						     P_("Value"),
-						     P_("Value of the progress bar"),
+				   g_param_spec_int ("value", NULL, NULL,
 						     0, 100, 0,
 						     GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -633,9 +631,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
    **/
   g_object_class_install_property (object_class,
 				   PROP_TEXT,
-				   g_param_spec_string ("text",
-							P_("Text"),
-							P_("Text on the progress bar"),
+				   g_param_spec_string ("text", NULL, NULL,
 							NULL,
 							GTK_PARAM_READWRITE));
 
@@ -655,9 +651,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_PULSE,
-                                   g_param_spec_int ("pulse",
-                                                     P_("Pulse"),
-                                                     P_("Set this to positive values to indicate that some progress is made, but you don’t know how much."),
+                                   g_param_spec_int ("pulse", NULL, NULL,
                                                      -1, G_MAXINT, -1,
                                                      GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -670,9 +664,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_TEXT_XALIGN,
-                                   g_param_spec_float ("text-xalign",
-                                                       P_("Text x alignment"),
-                                                       P_("The horizontal text alignment, from 0 (left) to 1 (right). Reversed for RTL layouts."),
+                                   g_param_spec_float ("text-xalign", NULL, NULL,
                                                        0.0, 1.0, 0.5,
                                                        GTK_PARAM_READWRITE));
 
@@ -685,9 +677,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_TEXT_YALIGN,
-                                   g_param_spec_float ("text-yalign",
-                                                       P_("Text y alignment"),
-                                                       P_("The vertical text alignment, from 0 (top) to 1 (bottom)."),
+                                   g_param_spec_float ("text-yalign", NULL, NULL,
                                                        0.0, 1.0, 0.5,
                                                        GTK_PARAM_READWRITE));
 
@@ -697,9 +687,7 @@ gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
 
   g_object_class_install_property (object_class,
                                    PROP_INVERTED,
-                                   g_param_spec_boolean ("inverted",
-                                                         P_("Inverted"),
-                                                         P_("Invert the direction in which the progress bar grows"),
+                                   g_param_spec_boolean ("inverted", NULL, NULL,
                                                          FALSE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 }

gtk/gtkcellrendererspin.c

@@ -127,9 +127,7 @@ gtk_cell_renderer_spin_class_init (GtkCellRendererSpinClass *klass)
    */
   g_object_class_install_property (object_class,
 				   PROP_ADJUSTMENT,
-				   g_param_spec_object ("adjustment",
-							P_("Adjustment"),
-							P_("The adjustment that holds the value of the spin button"),
+				   g_param_spec_object ("adjustment", NULL, NULL,
 							GTK_TYPE_ADJUSTMENT,
 							GTK_PARAM_READWRITE));
 
@@ -141,9 +139,7 @@ gtk_cell_renderer_spin_class_init (GtkCellRendererSpinClass *klass)
    */
   g_object_class_install_property (object_class,
 				   PROP_CLIMB_RATE,
-				   g_param_spec_double ("climb-rate",
-							P_("Climb rate"),
-							P_("The acceleration rate when you hold down a button"),
+				   g_param_spec_double ("climb-rate", NULL, NULL,
 							0.0, G_MAXDOUBLE, 0.0,
 							GTK_PARAM_READWRITE));  
   /**
@@ -153,9 +149,7 @@ gtk_cell_renderer_spin_class_init (GtkCellRendererSpinClass *klass)
    */
   g_object_class_install_property (object_class,
 				   PROP_DIGITS,
-				   g_param_spec_uint ("digits",
-						      P_("Digits"),
-						      P_("The number of decimal places to display"),
+				   g_param_spec_uint ("digits", NULL, NULL,
 						      0, 20, 0,
 						      GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); 
 }

gtk/gtkcellrendererspinner.c

@@ -177,9 +177,7 @@ gtk_cell_renderer_spinner_class_init (GtkCellRendererSpinnerClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_ACTIVE,
-                                   g_param_spec_boolean ("active",
-                                                         P_("Active"),
-                                                         P_("Whether the spinner is active (ie. shown) in the cell"),
+                                   g_param_spec_boolean ("active", NULL, NULL,
                                                          FALSE,
                                                          G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -194,9 +192,7 @@ gtk_cell_renderer_spinner_class_init (GtkCellRendererSpinnerClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_PULSE,
-                                   g_param_spec_uint ("pulse",
-                                                      P_("Pulse"),
-                                                      P_("Pulse of the spinner"),
+                                   g_param_spec_uint ("pulse", NULL, NULL,
                                                       0, G_MAXUINT, 0,
                                                       G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -207,9 +203,7 @@ gtk_cell_renderer_spinner_class_init (GtkCellRendererSpinnerClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_SIZE,
-                                   g_param_spec_enum ("size",
-                                                      P_("Size"),
-                                                      P_("The GtkIconSize value that specifies the size of the rendered spinner"),
+                                   g_param_spec_enum ("size", NULL, NULL,
                                                       GTK_TYPE_ICON_SIZE, GTK_ICON_SIZE_INHERIT,
                                                       G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcellrenderertext.c

@@ -249,37 +249,27 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
   cell_class->get_aligned_area = gtk_cell_renderer_text_get_aligned_area;
 
   text_cell_renderer_props[PROP_TEXT] =
-      g_param_spec_string ("text",
-                           P_("Text"),
-                           P_("Text to render"),
+      g_param_spec_string ("text", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_MARKUP] =
-      g_param_spec_string ("markup",
-                           P_("Markup"),
-                           P_("Marked up text to render"),
+      g_param_spec_string ("markup", NULL, NULL,
                            NULL,
                            GTK_PARAM_WRITABLE);
 
   text_cell_renderer_props[PROP_ATTRIBUTES] =
-      g_param_spec_boxed ("attributes",
-                          P_("Attributes"),
-                          P_("A list of style attributes to apply to the text of the renderer"),
+      g_param_spec_boxed ("attributes", NULL, NULL,
                           PANGO_TYPE_ATTR_LIST,
                           GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_SINGLE_PARAGRAPH_MODE] =
-      g_param_spec_boolean ("single-paragraph-mode",
-                            P_("Single Paragraph Mode"),
-                            P_("Whether to keep all text in a single paragraph"),
+      g_param_spec_boolean ("single-paragraph-mode", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
   text_cell_renderer_props[PROP_BACKGROUND] =
-      g_param_spec_string ("background",
-                           P_("Background color name"),
-                           P_("Background color as a string"),
+      g_param_spec_string ("background", NULL, NULL,
                            NULL,
                            GTK_PARAM_WRITABLE);
 
@@ -289,15 +279,11 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * Background color as a `GdkRGBA`
    */
   text_cell_renderer_props[PROP_BACKGROUND_RGBA] =
-      g_param_spec_boxed ("background-rgba",
-                          P_("Background color as RGBA"),
-                          P_("Background color as a GdkRGBA"),
+      g_param_spec_boxed ("background-rgba", NULL, NULL,
                           GDK_TYPE_RGBA,
                           GTK_PARAM_READWRITE);
   text_cell_renderer_props[PROP_FOREGROUND] =
-      g_param_spec_string ("foreground",
-                           P_("Foreground color name"),
-                           P_("Foreground color as a string"),
+      g_param_spec_string ("foreground", NULL, NULL,
                            NULL,
                            GTK_PARAM_WRITABLE);
 
@@ -307,127 +293,93 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * Foreground color as a `GdkRGBA`
    */
   text_cell_renderer_props[PROP_FOREGROUND_RGBA] =
-      g_param_spec_boxed ("foreground-rgba",
-                          P_("Foreground color as RGBA"),
-                          P_("Foreground color as a GdkRGBA"),
+      g_param_spec_boxed ("foreground-rgba", NULL, NULL,
                           GDK_TYPE_RGBA,
                           GTK_PARAM_READWRITE);
 
 
   text_cell_renderer_props[PROP_EDITABLE] =
-      g_param_spec_boolean ("editable",
-                            P_("Editable"),
-                            P_("Whether the text can be modified by the user"),
+      g_param_spec_boolean ("editable", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_FONT] =
-      g_param_spec_string ("font",
-                           P_("Font"),
-                           P_("Font description as a string, e.g. “Sans Italic 12”"),
+      g_param_spec_string ("font", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_FONT_DESC] =
-      g_param_spec_boxed ("font-desc",
-                          P_("Font"),
-                          P_("Font description as a PangoFontDescription struct"),
+      g_param_spec_boxed ("font-desc", NULL, NULL,
                           PANGO_TYPE_FONT_DESCRIPTION,
                           GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_FAMILY] =
-      g_param_spec_string ("family",
-                           P_("Font family"),
-                           P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
+      g_param_spec_string ("family", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_STYLE] =
-      g_param_spec_enum ("style",
-                         P_("Font style"),
-                         P_("Font style"),
+      g_param_spec_enum ("style", NULL, NULL,
                          PANGO_TYPE_STYLE,
                          PANGO_STYLE_NORMAL,
                          GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_VARIANT] =
-      g_param_spec_enum ("variant",
-                         P_("Font variant"),
-                         P_("Font variant"),
+      g_param_spec_enum ("variant", NULL, NULL,
                          PANGO_TYPE_VARIANT,
                          PANGO_VARIANT_NORMAL,
                          GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_WEIGHT] =
-      g_param_spec_int ("weight",
-                        P_("Font weight"),
-                        P_("Font weight"),
+      g_param_spec_int ("weight", NULL, NULL,
                         0, G_MAXINT,
                         PANGO_WEIGHT_NORMAL,
                         GTK_PARAM_READWRITE);
 
    text_cell_renderer_props[PROP_STRETCH] =
-       g_param_spec_enum ("stretch",
-                          P_("Font stretch"),
-                          P_("Font stretch"),
+       g_param_spec_enum ("stretch", NULL, NULL,
                           PANGO_TYPE_STRETCH,
                           PANGO_STRETCH_NORMAL,
                           GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_SIZE] =
-      g_param_spec_int ("size",
-                        P_("Font size"),
-                        P_("Font size"),
+      g_param_spec_int ("size", NULL, NULL,
                         0, G_MAXINT,
                         0,
                         GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_SIZE_POINTS] =
-      g_param_spec_double ("size-points",
-                           P_("Font points"),
-                           P_("Font size in points"),
+      g_param_spec_double ("size-points", NULL, NULL,
                            0.0, G_MAXDOUBLE,
                            0.0,
                            GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_SCALE] =
-      g_param_spec_double ("scale",
-                           P_("Font scale"),
-                           P_("Font scaling factor"),
+      g_param_spec_double ("scale", NULL, NULL,
                            0.0, G_MAXDOUBLE,
                            1.0,
                            GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_RISE] =
-      g_param_spec_int ("rise",
-                        P_("Rise"),
-                        P_("Offset of text above the baseline (below the baseline if rise is negative)"),
+      g_param_spec_int ("rise", NULL, NULL,
                         -G_MAXINT, G_MAXINT,
                         0,
                         GTK_PARAM_READWRITE);
 
 
   text_cell_renderer_props[PROP_STRIKETHROUGH] =
-      g_param_spec_boolean ("strikethrough",
-                            P_("Strikethrough"),
-                            P_("Whether to strike through the text"),
+      g_param_spec_boolean ("strikethrough", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_UNDERLINE] =
-      g_param_spec_enum ("underline",
-                         P_("Underline"),
-                         P_("Style of underline for this text"),
+      g_param_spec_enum ("underline", NULL, NULL,
                          PANGO_TYPE_UNDERLINE,
                          PANGO_UNDERLINE_NONE,
                          GTK_PARAM_READWRITE);
 
   text_cell_renderer_props[PROP_LANGUAGE] =
-      g_param_spec_string ("language",
-                           P_("Language"),
-                           P_("The language this text is in, as an ISO code. "
-                              "Pango can use this as a hint when rendering the text. "
-                              "If you don’t understand this parameter, you probably don’t need it"),
+      g_param_spec_string ("language", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
@@ -440,11 +392,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * for another way of making the text fit into a given width.
    */
   text_cell_renderer_props[PROP_ELLIPSIZE] =
-      g_param_spec_enum ("ellipsize",
-                         P_("Ellipsize"),
-                         P_("The preferred place to ellipsize the string, "
-                            "if the cell renderer does not have enough room "
-                            "to display the entire string"),
+      g_param_spec_enum ("ellipsize", NULL, NULL,
                          PANGO_TYPE_ELLIPSIZE_MODE,
                          PANGO_ELLIPSIZE_NONE,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -457,9 +405,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * request either 3 characters or the property value, whichever is greater.
    **/
   text_cell_renderer_props[PROP_WIDTH_CHARS] =
-      g_param_spec_int ("width-chars",
-                        P_("Width In Characters"),
-                        P_("The desired width of the label, in characters"),
+      g_param_spec_int ("width-chars", NULL, NULL,
                         -1, G_MAXINT,
                         -1,
                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -477,9 +423,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * have received their natural width.
    **/
   text_cell_renderer_props[PROP_MAX_WIDTH_CHARS] =
-      g_param_spec_int ("max-width-chars",
-                        P_("Maximum Width In Characters"),
-                        P_("The maximum width of the cell, in characters"),
+      g_param_spec_int ("max-width-chars", NULL, NULL,
                         -1, G_MAXINT,
                         -1,
                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -492,11 +436,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * This property has no effect unless the wrap-width property is set.
    */
   text_cell_renderer_props[PROP_WRAP_MODE] =
-      g_param_spec_enum ("wrap-mode",
-                         P_("Wrap mode"),
-                         P_("How to break the string into multiple lines, "
-                            "if the cell renderer does not have enough room "
-                            "to display the entire string"),
+      g_param_spec_enum ("wrap-mode", NULL, NULL,
                          PANGO_TYPE_WRAP_MODE,
                          PANGO_WRAP_CHAR,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -509,9 +449,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * Setting wrap-width to -1 turns wrapping off.
    */
   text_cell_renderer_props[PROP_WRAP_WIDTH] =
-      g_param_spec_int ("wrap-width",
-                        P_("Wrap width"),
-                        P_("The width at which the text is wrapped"),
+      g_param_spec_int ("wrap-width", NULL, NULL,
                         -1, G_MAXINT,
                         -1,
                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -526,9 +464,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * on the other hand, sets the horizontal alignment of the whole text.
    */
   text_cell_renderer_props[PROP_ALIGN] =
-      g_param_spec_enum ("alignment",
-                         P_("Alignment"),
-                         P_("How to align the lines"),
+      g_param_spec_enum ("alignment", NULL, NULL,
                          PANGO_TYPE_ALIGNMENT,
                          PANGO_ALIGN_LEFT,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
@@ -540,9 +476,7 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
    * `GtkCellRendererText:editable` is %TRUE and the cell is empty.
    */
   text_cell_renderer_props[PROP_PLACEHOLDER_TEXT] =
-      g_param_spec_string ("placeholder-text",
-                           P_("Placeholder text"),
-                           P_("Text rendered when an editable cell is empty"),
+      g_param_spec_string ("placeholder-text", NULL, NULL,
                            NULL,
                            GTK_PARAM_READWRITE);
 
@@ -550,69 +484,37 @@ gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
 
 #define ADD_SET_PROP(propname, propval, nick, blurb) text_cell_renderer_props[propval] = g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE)
 
-  ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
-                P_("Background set"),
-                P_("Whether this tag affects the background color"));
+  ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET, NULL, NULL);
 
-  ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
-                P_("Foreground set"),
-                P_("Whether this tag affects the foreground color"));
+  ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET, NULL, NULL);
 
-  ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
-                P_("Editability set"),
-                P_("Whether this tag affects text editability"));
+  ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
-                P_("Font family set"),
-                P_("Whether this tag affects the font family"));
+  ADD_SET_PROP ("family-set", PROP_FAMILY_SET, NULL, NULL);
 
-  ADD_SET_PROP ("style-set", PROP_STYLE_SET,
-                P_("Font style set"),
-                P_("Whether this tag affects the font style"));
+  ADD_SET_PROP ("style-set", PROP_STYLE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
-                P_("Font variant set"),
-                P_("Whether this tag affects the font variant"));
+  ADD_SET_PROP ("variant-set", PROP_VARIANT_SET, NULL, NULL);
 
-  ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
-                P_("Font weight set"),
-                P_("Whether this tag affects the font weight"));
+  ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET, NULL, NULL);
 
-  ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
-                P_("Font stretch set"),
-                P_("Whether this tag affects the font stretch"));
+  ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET, NULL, NULL);
 
-  ADD_SET_PROP ("size-set", PROP_SIZE_SET,
-                P_("Font size set"),
-                P_("Whether this tag affects the font size"));
+  ADD_SET_PROP ("size-set", PROP_SIZE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
-                P_("Font scale set"),
-                P_("Whether this tag scales the font size by a factor"));
+  ADD_SET_PROP ("scale-set", PROP_SCALE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("rise-set", PROP_RISE_SET,
-                P_("Rise set"),
-                P_("Whether this tag affects the rise"));
+  ADD_SET_PROP ("rise-set", PROP_RISE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
-                P_("Strikethrough set"),
-                P_("Whether this tag affects strikethrough"));
+  ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET, NULL, NULL);
 
-  ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
-                P_("Underline set"),
-                P_("Whether this tag affects underlining"));
+  ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
-                P_("Language set"),
-                P_("Whether this tag affects the language the text is rendered as"));
+  ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
-                P_("Ellipsize set"),
-                P_("Whether this tag affects the ellipsize mode"));
+  ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET, NULL, NULL);
 
-  ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
-                P_("Align set"),
-                P_("Whether this tag affects the alignment mode"));
+  ADD_SET_PROP ("align-set", PROP_ALIGN_SET, NULL, NULL);
 
   g_object_class_install_properties (object_class, LAST_PROP, text_cell_renderer_props);
 

gtk/gtkcellrenderertoggle.c

@@ -192,33 +192,25 @@ gtk_cell_renderer_toggle_class_init (GtkCellRendererToggleClass *class)
   
   g_object_class_install_property (object_class,
 				   PROP_ACTIVE,
-				   g_param_spec_boolean ("active",
-							 P_("Toggle state"),
-							 P_("The toggle state of the button"),
+				   g_param_spec_boolean ("active", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   g_object_class_install_property (object_class,
 		                   PROP_INCONSISTENT,
-				   g_param_spec_boolean ("inconsistent",
-					                 P_("Inconsistent state"),
-							 P_("The inconsistent state of the button"),
+				   g_param_spec_boolean ("inconsistent", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   
   g_object_class_install_property (object_class,
 				   PROP_ACTIVATABLE,
-				   g_param_spec_boolean ("activatable",
-							 P_("Activatable"),
-							 P_("The toggle button can be activated"),
+				   g_param_spec_boolean ("activatable", NULL, NULL,
 							 TRUE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   g_object_class_install_property (object_class,
 				   PROP_RADIO,
-				   g_param_spec_boolean ("radio",
-							 P_("Radio state"),
-							 P_("Draw the toggle button as a radio button"),
+				   g_param_spec_boolean ("radio", NULL, NULL,
 							 FALSE,
 							 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcellview.c

@@ -195,9 +195,7 @@ gtk_cell_view_class_init (GtkCellViewClass *klass)
    */
   g_object_class_install_property (gobject_class,
 				   PROP_MODEL,
-				   g_param_spec_object  ("model",
-							 P_("CellView model"),
-							 P_("The model for cell view"),
+				   g_param_spec_object  ("model", NULL, NULL,
 							 GTK_TYPE_TREE_MODEL,
 							 GTK_PARAM_READWRITE));
 
@@ -214,9 +212,7 @@ gtk_cell_view_class_init (GtkCellViewClass *klass)
    */
    g_object_class_install_property (gobject_class,
                                     PROP_CELL_AREA,
-                                    g_param_spec_object ("cell-area",
-							 P_("Cell Area"),
-							 P_("The GtkCellArea used to layout cells"),
+                                    g_param_spec_object ("cell-area", NULL, NULL,
 							 GTK_TYPE_CELL_AREA,
 							 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 
@@ -238,10 +234,7 @@ gtk_cell_view_class_init (GtkCellViewClass *klass)
    */
    g_object_class_install_property (gobject_class,
                                     PROP_CELL_AREA_CONTEXT,
-                                    g_param_spec_object ("cell-area-context",
-							 P_("Cell Area Context"),
-							 P_("The GtkCellAreaContext used to "
-							    "compute the geometry of the cell view"),
+                                    g_param_spec_object ("cell-area-context", NULL, NULL,
 							 GTK_TYPE_CELL_AREA_CONTEXT,
 							 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 
@@ -256,10 +249,7 @@ gtk_cell_view_class_init (GtkCellViewClass *klass)
    */
    g_object_class_install_property (gobject_class,
                                     PROP_DRAW_SENSITIVE,
-                                    g_param_spec_boolean ("draw-sensitive",
-							  P_("Draw Sensitive"),
-							  P_("Whether to force cells to be drawn in a "
-							     "sensitive state"),
+                                    g_param_spec_boolean ("draw-sensitive", NULL, NULL,
 							  FALSE,
 							  GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -275,10 +265,7 @@ gtk_cell_view_class_init (GtkCellViewClass *klass)
    */
    g_object_class_install_property (gobject_class,
                                     PROP_FIT_MODEL,
-                                    g_param_spec_boolean ("fit-model",
-							  P_("Fit Model"),
-							  P_("Whether to request enough space for "
-							     "every row in the model"),
+                                    g_param_spec_boolean ("fit-model", NULL, NULL,
 							  FALSE,
 							  GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcenterbox.c

@@ -208,9 +208,7 @@ gtk_center_box_class_init (GtkCenterBoxClass *klass)
    * The position of the baseline aligned widget if extra space is available.
    */
   g_object_class_install_property (object_class, PROP_BASELINE_POSITION,
-          g_param_spec_enum ("baseline-position",
-                             P_("Baseline position"),
-                             P_("The position of the baseline aligned widgets if extra space is available"),
+          g_param_spec_enum ("baseline-position", NULL, NULL,
                              GTK_TYPE_BASELINE_POSITION,
                              GTK_BASELINE_POSITION_CENTER,
                              GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));

gtk/gtkcheckbutton.c

@@ -578,9 +578,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * the check button and the indicator CSS node.
    */
   props[PROP_ACTIVE] =
-      g_param_spec_boolean ("active",
-                            P_("Active"),
-                            P_("If the toggle button should be pressed in"),
+      g_param_spec_boolean ("active", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -590,9 +588,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * The check button whose group this widget belongs to.
    */
   props[PROP_GROUP] =
-      g_param_spec_object ("group",
-                           P_("Group"),
-                           P_("The check button whose group this widget belongs to."),
+      g_param_spec_object ("group", NULL, NULL,
                            GTK_TYPE_CHECK_BUTTON,
                            GTK_PARAM_WRITABLE);
 
@@ -602,9 +598,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * Text of the label inside the check button, if it contains a label widget.
    */
   props[PROP_LABEL] =
-    g_param_spec_string ("label",
-                         P_("Label"),
-                         P_("Text of the label widget inside the button, if the button contains a label widget"),
+    g_param_spec_string ("label", NULL, NULL,
                          NULL,
                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -617,9 +611,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * not the semantics of the button.
    */
   props[PROP_INCONSISTENT] =
-      g_param_spec_boolean ("inconsistent",
-                            P_("Inconsistent"),
-                            P_("If the check button is in an “in between” state"),
+      g_param_spec_boolean ("inconsistent", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -630,9 +622,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * character is to be used as mnemonic.
    */
   props[PROP_USE_UNDERLINE] =
-      g_param_spec_boolean ("use-underline",
-                            P_("Use underline"),
-                            P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
+      g_param_spec_boolean ("use-underline", NULL, NULL,
                             FALSE,
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
@@ -644,9 +634,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
    * Since: 4.8
    */
   props[PROP_CHILD] =
-      g_param_spec_object ("child",
-                           P_("Child"),
-                           P_("The child widget"),
+      g_param_spec_object ("child", NULL, NULL,
                            GTK_TYPE_WIDGET,
                            GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkcolorbutton.c

@@ -175,9 +175,7 @@ gtk_color_button_class_init (GtkColorButtonClass *klass)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_TITLE,
-                                   g_param_spec_string ("title",
-                                                        P_("Title"),
-                                                        P_("The title of the color selection dialog"),
+                                   g_param_spec_string ("title", NULL, NULL,
                                                         _("Pick a Color"),
                                                         GTK_PARAM_READWRITE));
 
@@ -236,8 +234,7 @@ gtk_color_button_class_init (GtkColorButtonClass *klass)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_SHOW_EDITOR,
-                                   g_param_spec_boolean ("show-editor", P_("Show Editor"),
-                                                         P_("Whether to show the color editor right away"),
+                                   g_param_spec_boolean ("show-editor", NULL, NULL,
                                                          FALSE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -248,8 +245,7 @@ gtk_color_button_class_init (GtkColorButtonClass *klass)
    */
   g_object_class_install_property (gobject_class,
                                    PROP_MODAL,
-                                   g_param_spec_boolean ("modal", P_("Modal"),
-                                                         P_("Whether the dialog is modal"),
+                                   g_param_spec_boolean ("modal", NULL, NULL,
                                                          TRUE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcolorchooser.c

@@ -61,9 +61,7 @@ gtk_color_chooser_default_init (GtkColorChooserInterface *iface)
    * programmatically.
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boxed ("rgba",
-                          P_("Color"),
-                          P_("Current color, as a GdkRGBA"),
+      g_param_spec_boxed ("rgba", NULL, NULL,
                           GDK_TYPE_RGBA,
                           GTK_PARAM_READWRITE));
 
@@ -80,9 +78,7 @@ gtk_color_chooser_default_init (GtkColorChooserInterface *iface)
    * over a non-uniform background (like a checkerboard pattern).
    */
   g_object_interface_install_property (iface,
-      g_param_spec_boolean ("use-alpha",
-                            P_("Use alpha"),
-                            P_("Whether alpha should be shown"),
+      g_param_spec_boolean ("use-alpha", NULL, NULL,
                             TRUE,
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 

gtk/gtkcolorchooserdialog.c

@@ -223,7 +223,7 @@ gtk_color_chooser_dialog_class_init (GtkColorChooserDialogClass *class)
   g_object_class_override_property (object_class, PROP_RGBA, "rgba");
   g_object_class_override_property (object_class, PROP_USE_ALPHA, "use-alpha");
   g_object_class_install_property (object_class, PROP_SHOW_EDITOR,
-      g_param_spec_boolean ("show-editor", P_("Show editor"), P_("Show editor"),
+      g_param_spec_boolean ("show-editor", NULL, NULL,
                             FALSE, GTK_PARAM_READWRITE));
 
   /* Bind class to template

gtk/gtkcolorchooserwidget.c

@@ -718,7 +718,7 @@ gtk_color_chooser_widget_class_init (GtkColorChooserWidgetClass *class)
    * It can be set to switch the color chooser into single-color editing mode.
    */
   g_object_class_install_property (object_class, PROP_SHOW_EDITOR,
-      g_param_spec_boolean ("show-editor", P_("Show editor"), P_("Show editor"),
+      g_param_spec_boolean ("show-editor", NULL, NULL,
                             FALSE, GTK_PARAM_READWRITE));
 
   gtk_widget_class_set_css_name (widget_class, I_("colorchooser"));

gtk/gtkcoloreditor.c

@@ -401,11 +401,6 @@ gtk_color_editor_init (GtkColorEditor *editor)
   g_type_ensure (GTK_TYPE_COLOR_SWATCH);
   gtk_widget_init_template (GTK_WIDGET (editor));
 
-  if (gtk_widget_get_direction (editor->h_slider) == GTK_TEXT_DIR_RTL)
-    gtk_widget_add_css_class (editor->h_slider, "marks-before");
-  else
-    gtk_widget_add_css_class (editor->h_slider, "marks-after");
-
   /* Create the scaled popup adjustments manually here because connecting user data is not
    * supported by template GtkBuilder xml (it would be possible to set this up in the xml
    * but require 4 separate callbacks and would be rather ugly).

gtk/gtkcolorplane.c

@@ -487,27 +487,21 @@ gtk_color_plane_class_init (GtkColorPlaneClass *class)
 
   g_object_class_install_property (object_class,
                                    PROP_H_ADJUSTMENT,
-                                   g_param_spec_object ("h-adjustment",
-                                                        "Hue Adjustment",
-                                                        "Hue Adjustment",
+                                   g_param_spec_object ("h-adjustment", NULL, NULL,
                                                         GTK_TYPE_ADJUSTMENT,
                                                         GTK_PARAM_WRITABLE |
                                                         G_PARAM_CONSTRUCT_ONLY));
 
   g_object_class_install_property (object_class,
                                    PROP_S_ADJUSTMENT,
-                                   g_param_spec_object ("s-adjustment",
-                                                        "Saturation Adjustment",
-                                                        "Saturation Adjustment",
+                                   g_param_spec_object ("s-adjustment", NULL, NULL,
                                                         GTK_TYPE_ADJUSTMENT,
                                                         GTK_PARAM_WRITABLE |
                                                         G_PARAM_CONSTRUCT_ONLY));
 
   g_object_class_install_property (object_class,
                                    PROP_V_ADJUSTMENT,
-                                   g_param_spec_object ("v-adjustment",
-                                                        "Value Adjustment",
-                                                        "Value Adjustment",
+                                   g_param_spec_object ("v-adjustment", NULL, NULL,
                                                         GTK_TYPE_ADJUSTMENT,
                                                         GTK_PARAM_WRITABLE |
                                                         G_PARAM_CONSTRUCT_ONLY));

gtk/gtkcolorscale.c

@@ -283,7 +283,7 @@ gtk_color_scale_class_init (GtkColorScaleClass *class)
   object_class->set_property = scale_set_property;
 
   g_object_class_install_property (object_class, PROP_SCALE_TYPE,
-      g_param_spec_int ("scale-type", P_("Scale type"), P_("Scale type"),
+      g_param_spec_int ("scale-type", NULL, NULL,
                         0, 1, 0,
                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 }

gtk/gtkcolorswatch.c

@@ -509,19 +509,19 @@ gtk_color_swatch_class_init (GtkColorSwatchClass *class)
   widget_class->state_flags_changed = swatch_state_flags_changed;
 
   g_object_class_install_property (object_class, PROP_RGBA,
-      g_param_spec_boxed ("rgba", P_("RGBA Color"), P_("Color as RGBA"),
+      g_param_spec_boxed ("rgba", NULL, NULL,
                           GDK_TYPE_RGBA, GTK_PARAM_READWRITE));
   g_object_class_install_property (object_class, PROP_SELECTABLE,
-      g_param_spec_boolean ("selectable", P_("Selectable"), P_("Whether the swatch is selectable"),
+      g_param_spec_boolean ("selectable", NULL, NULL,
                             TRUE, GTK_PARAM_READWRITE));
   g_object_class_install_property (object_class, PROP_HAS_MENU,
-      g_param_spec_boolean ("has-menu", P_("Has Menu"), P_("Whether the swatch should offer customization"),
+      g_param_spec_boolean ("has-menu", NULL, NULL,
                             TRUE, GTK_PARAM_READWRITE));
   g_object_class_install_property (object_class, PROP_CAN_DROP,
-      g_param_spec_boolean ("can-drop", P_("Can Drop"), P_("Whether the swatch should accept drops"),
+      g_param_spec_boolean ("can-drop", NULL, NULL,
                             FALSE, GTK_PARAM_READWRITE));
   g_object_class_install_property (object_class, PROP_CAN_DRAG,
-      g_param_spec_boolean ("can-drag", P_("Can Drag"), P_("Whether the swatch should allow drags"),
+      g_param_spec_boolean ("can-drag", NULL, NULL,
                             TRUE, GTK_PARAM_READWRITE));
 
   /**

gtk/gtkcolumnlistitemfactory.c

@@ -41,6 +41,9 @@ struct _GtkColumnListItemFactoryClass
 
 G_DEFINE_TYPE (GtkColumnListItemFactory, gtk_column_list_item_factory, GTK_TYPE_LIST_ITEM_FACTORY)
 
+#define ancestor_class(T_N) ((T_N##Class *)gtk_column_list_item_factory_parent_class)
+#define parent_class ancestor_class(GtkListItemFactory)
+
 static void
 gtk_column_list_item_factory_setup (GtkListItemFactory *factory,
                                     GtkListItemWidget  *widget,
@@ -54,7 +57,7 @@ gtk_column_list_item_factory_setup (GtkListItemFactory *factory,
   gtk_widget_set_layout_manager (GTK_WIDGET (widget),
                                  gtk_column_view_layout_new (self->view));
 
-  GTK_LIST_ITEM_FACTORY_CLASS (gtk_column_list_item_factory_parent_class)->setup (factory, widget, list_item);
+  parent_class->setup (factory, widget, list_item);
 
   columns = gtk_column_view_get_columns (self->view);
 
@@ -76,13 +79,14 @@ gtk_column_list_item_factory_teardown (GtkListItemFactory *factory,
                                        GtkListItemWidget  *widget,
                                        GtkListItem        *list_item)
 {
+  GtkWidget *w = GTK_WIDGET (widget);
   GtkWidget *child;
 
-  GTK_LIST_ITEM_FACTORY_CLASS (gtk_column_list_item_factory_parent_class)->teardown (factory, widget, list_item);
+  parent_class->teardown (factory, widget, list_item);
 
-  while ((child = gtk_widget_get_first_child (GTK_WIDGET (widget))))
+  while ((child = gtk_widget_get_first_child (w)))
     {
-      gtk_list_item_widget_remove_child (GTK_LIST_ITEM_WIDGET (widget), child);
+      gtk_list_item_widget_remove_child (widget, child);
     }
 }
 
@@ -94,11 +98,12 @@ gtk_column_list_item_factory_update (GtkListItemFactory *factory,
                                      gpointer            item,
                                      gboolean            selected)
 {
+  GtkWidget *w = GTK_WIDGET (widget);
   GtkWidget *child;
 
-  GTK_LIST_ITEM_FACTORY_CLASS (gtk_column_list_item_factory_parent_class)->update (factory, widget, list_item, position, item, selected);
+  parent_class->update (factory, widget, list_item, position, item, selected);
 
-  for (child = gtk_widget_get_first_child (GTK_WIDGET (widget));
+  for (child = gtk_widget_get_first_child (w);
        child;
        child = gtk_widget_get_next_sibling (child))
     {
@@ -142,7 +147,7 @@ gtk_column_list_item_factory_add_column (GtkColumnListItemFactory *factory,
   GtkWidget *cell;
 
   cell = gtk_column_view_cell_new (column);
-  gtk_list_item_widget_add_child (GTK_LIST_ITEM_WIDGET (list_item), GTK_WIDGET (cell));
+  gtk_list_item_widget_add_child (list_item, cell);
   gtk_list_item_widget_update (GTK_LIST_ITEM_WIDGET (cell),
                                gtk_list_item_widget_get_position (list_item),
                                gtk_list_item_widget_get_item (list_item),

gtk/gtkcolumnview.c

@@ -678,9 +678,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * The list of columns.
    */
   properties[PROP_COLUMNS] =
-    g_param_spec_object ("columns",
-                         P_("Columns"),
-                         P_("List of columns"),
+    g_param_spec_object ("columns", NULL, NULL,
                          G_TYPE_LIST_MODEL,
                          G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -690,9 +688,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Model for the items displayed.
    */
   properties[PROP_MODEL] =
-    g_param_spec_object ("model",
-                         P_("Model"),
-                         P_("Model for the items displayed"),
+    g_param_spec_object ("model", NULL, NULL,
                          GTK_TYPE_SELECTION_MODEL,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -702,9 +698,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Show separators between rows.
    */
   properties[PROP_SHOW_ROW_SEPARATORS] =
-    g_param_spec_boolean ("show-row-separators",
-                          P_("Show row separators"),
-                          P_("Show separators between rows"),
+    g_param_spec_boolean ("show-row-separators", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -714,9 +708,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Show separators between columns.
    */
   properties[PROP_SHOW_COLUMN_SEPARATORS] =
-    g_param_spec_boolean ("show-column-separators",
-                          P_("Show column separators"),
-                          P_("Show separators between columns"),
+    g_param_spec_boolean ("show-column-separators", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -726,9 +718,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Sorter with the sorting choices of the user.
    */
   properties[PROP_SORTER] =
-    g_param_spec_object ("sorter",
-                         P_("Sorter"),
-                         P_("Sorter with sorting choices of the user"),
+    g_param_spec_object ("sorter", NULL, NULL,
                          GTK_TYPE_SORTER,
                          G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -738,9 +728,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Activate rows on single click and select them on hover.
    */
   properties[PROP_SINGLE_CLICK_ACTIVATE] =
-    g_param_spec_boolean ("single-click-activate",
-                          P_("Single click activate"),
-                          P_("Activate rows on single click"),
+    g_param_spec_boolean ("single-click-activate", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -750,9 +738,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Whether columns are reorderable.
    */
   properties[PROP_REORDERABLE] =
-    g_param_spec_boolean ("reorderable",
-                          P_("Reorderable"),
-                          P_("Whether columns are reorderable"),
+    g_param_spec_boolean ("reorderable", NULL, NULL,
                           TRUE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -762,9 +748,7 @@ gtk_column_view_class_init (GtkColumnViewClass *klass)
    * Allow rubberband selection.
    */
   properties[PROP_ENABLE_RUBBERBAND] =
-    g_param_spec_boolean ("enable-rubberband",
-                          P_("Enable rubberband selection"),
-                          P_("Allow selecting items by dragging with the mouse"),
+    g_param_spec_boolean ("enable-rubberband", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 

gtk/gtkcolumnviewcolumn.c

@@ -237,9 +237,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * The `GtkColumnView` this column is a part of.
    */
   properties[PROP_COLUMN_VIEW] =
-    g_param_spec_object ("column-view",
-                         P_("Column view"),
-                         P_("Column view this column is a part of"),
+    g_param_spec_object ("column-view", NULL, NULL,
                          GTK_TYPE_COLUMN_VIEW,
                          G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -249,9 +247,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Factory for populating list items.
    */
   properties[PROP_FACTORY] =
-    g_param_spec_object ("factory",
-                         P_("Factory"),
-                         P_("Factory for populating list items"),
+    g_param_spec_object ("factory", NULL, NULL,
                          GTK_TYPE_LIST_ITEM_FACTORY,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -261,9 +257,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Title displayed in the header.
    */
   properties[PROP_TITLE] =
-    g_param_spec_string ("title",
-                          P_("Title"),
-                          P_("Title displayed in the header"),
+    g_param_spec_string ("title", NULL, NULL,
                           NULL,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
 
@@ -273,9 +267,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Sorter for sorting items according to this column.
    */
   properties[PROP_SORTER] =
-    g_param_spec_object ("sorter",
-                         P_("Sorter"),
-                         P_("Sorter for sorting items according to this column"),
+    g_param_spec_object ("sorter", NULL, NULL,
                          GTK_TYPE_SORTER,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -285,9 +277,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Whether this column is visible.
    */
   properties[PROP_VISIBLE] =
-    g_param_spec_boolean ("visible",
-                          P_("Visible"),
-                          P_("Whether this column is visible"),
+    g_param_spec_boolean ("visible", NULL, NULL,
                           TRUE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -297,9 +287,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Menu model used to create the context menu for the column header.
    */
   properties[PROP_HEADER_MENU] =
-    g_param_spec_object ("header-menu",
-                         P_("Header menu"),
-                         P_("Menu to use on the title of this column"),
+    g_param_spec_object ("header-menu", NULL, NULL,
                          G_TYPE_MENU_MODEL,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -309,9 +297,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Whether this column is resizable.
    */
   properties[PROP_RESIZABLE] =
-    g_param_spec_boolean ("resizable",
-                          P_("Resizable"),
-                          P_("Whether this column is resizable"),
+    g_param_spec_boolean ("resizable", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -321,9 +307,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * Column gets share of extra width allocated to the view.
    */
   properties[PROP_EXPAND] =
-    g_param_spec_boolean ("expand",
-                          P_("Expand"),
-                          P_("column gets share of extra width"),
+    g_param_spec_boolean ("expand", NULL, NULL,
                           FALSE,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
@@ -334,9 +318,7 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
    * regardless of the size of its content.
    */
   properties[PROP_FIXED_WIDTH] =
-    g_param_spec_int ("fixed-width",
-                      P_("Fixed width"),
-                      P_("Fixed width of this column"),
+    g_param_spec_int ("fixed-width", NULL, NULL,
                       -1, G_MAXINT, -1,
                       G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 

gtk/gtkcombobox.c

@@ -664,9 +664,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_MODEL,
-                                   g_param_spec_object ("model",
-                                                        P_("ComboBox model"),
-                                                        P_("The model for the combo box"),
+                                   g_param_spec_object ("model", NULL, NULL,
                                                         GTK_TYPE_TREE_MODEL,
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -683,9 +681,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_ACTIVE,
-                                   g_param_spec_int ("active",
-                                                     P_("Active item"),
-                                                     P_("The item which is currently active"),
+                                   g_param_spec_int ("active", NULL, NULL,
                                                      -1,
                                                      G_MAXINT,
                                                      -1,
@@ -698,9 +694,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_HAS_FRAME,
-                                   g_param_spec_boolean ("has-frame",
-                                                         P_("Has Frame"),
-                                                         P_("Whether the combo box draws a frame around the child"),
+                                   g_param_spec_boolean ("has-frame", NULL, NULL,
                                                          TRUE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -714,9 +708,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
    */
   g_object_class_install_property (object_class,
                                    PROP_POPUP_SHOWN,
-                                   g_param_spec_boolean ("popup-shown",
-                                                         P_("Popup shown"),
-                                                         P_("Whether the combo’s dropdown is shown"),
+                                   g_param_spec_boolean ("popup-shown", NULL, NULL,
                                                          FALSE,
                                                          GTK_PARAM_READABLE));
 
@@ -729,9 +721,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_BUTTON_SENSITIVITY,
-                                    g_param_spec_enum ("button-sensitivity",
-                                                       P_("Button Sensitivity"),
-                                                       P_("Whether the dropdown button is sensitive when the model is empty"),
+                                    g_param_spec_enum ("button-sensitivity", NULL, NULL,
                                                        GTK_TYPE_SENSITIVITY_TYPE,
                                                        GTK_SENSITIVITY_AUTO,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
@@ -743,9 +733,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_HAS_ENTRY,
-                                    g_param_spec_boolean ("has-entry",
-                                                          P_("Has Entry"),
-                                                          P_("Whether combo box has an entry"),
+                                    g_param_spec_boolean ("has-entry", NULL, NULL,
                                                           FALSE,
                                                           GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
 
@@ -759,11 +747,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_ENTRY_TEXT_COLUMN,
-                                    g_param_spec_int ("entry-text-column",
-                                                      P_("Entry Text Column"),
-                                                      P_("The column in the combo box’s model to associate "
-                                                         "with strings from the entry if the combo was "
-                                                         "created with GtkComboBox:has-entry = %TRUE"),
+                                    g_param_spec_int ("entry-text-column", NULL, NULL,
                                                       -1, G_MAXINT, -1,
                                                       GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -775,10 +759,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_ID_COLUMN,
-                                    g_param_spec_int ("id-column",
-                                                      P_("ID Column"),
-                                                      P_("The column in the combo box’s model that provides "
-                                                      "string IDs for the values in the model"),
+                                    g_param_spec_int ("id-column", NULL, NULL,
                                                       -1, G_MAXINT, -1,
                                                       GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -789,10 +770,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_ACTIVE_ID,
-                                    g_param_spec_string ("active-id",
-                                                         P_("Active id"),
-                                                         P_("The value of the id column "
-                                                         "for the active row"),
+                                    g_param_spec_string ("active-id", NULL, NULL,
                                                          NULL,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -804,11 +782,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_POPUP_FIXED_WIDTH,
-                                    g_param_spec_boolean ("popup-fixed-width",
-                                                          P_("Popup Fixed Width"),
-                                                          P_("Whether the popup’s width should be a "
-                                                             "fixed width matching the allocated width "
-                                                             "of the combo box"),
+                                    g_param_spec_boolean ("popup-fixed-width", NULL, NULL,
                                                           TRUE,
                                                           GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
@@ -819,9 +793,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     */
    g_object_class_install_property (object_class,
                                     PROP_CHILD,
-                                    g_param_spec_object ("child",
-                                                         P_("Child"),
-                                                         P_("The child_widget"),
+                                    g_param_spec_object ("child", NULL, NULL,
                                                          GTK_TYPE_WIDGET,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));