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2 Commits

Author SHA1 Message Date
Benjamin Otte d01ad09dc5 demo: Use a FixedItemSeletion instead of a NoSelection
Simple demo of how to use FixedItemSelection.
2021-11-09 18:38:24 +01:00
Benjamin Otte 28613549c4 gtk: Add GtkFixedItemSelection 2021-11-09 18:38:24 +01:00
324 changed files with 22797 additions and 64563 deletions
+16 -16
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@@ -221,11 +221,11 @@ vs2017-x64:
extends: .flatpak-defaults
when: manual
# Only build Flatpak bundles automatically on main
.flatpak-main:
# Only build Flatpak bundles automatically on master
.flatpak-master:
extends: .flatpak-defaults
only:
- main
- master
flatpak-manual:demo:
extends: .flatpak-manual
@@ -233,8 +233,8 @@ flatpak-manual:demo:
variables:
APPID: org.gtk.Demo4
flatpak-main:demo:
extends: .flatpak-main
flatpak-master:demo:
extends: .flatpak-master
needs: []
variables:
APPID: org.gtk.Demo4
@@ -245,8 +245,8 @@ flatpak-manual:widget-factory:
variables:
APPID: org.gtk.WidgetFactory4
flatpak-main:widget-factory:
extends: .flatpak-main
flatpak-master:widget-factory:
extends: .flatpak-master
needs: []
variables:
APPID: org.gtk.WidgetFactory4
@@ -257,8 +257,8 @@ flatpak-manual:icon-browser:
variables:
APPID: org.gtk.IconBrowser4
flatpak-main:icon-browser:
extends: .flatpak-main
flatpak-master:icon-browser:
extends: .flatpak-master
needs: []
variables:
APPID: org.gtk.IconBrowser4
@@ -268,18 +268,18 @@ flatpak-main:icon-browser:
# https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/DevOps-with-Flatpak
nightly demo:
extends: '.publish_nightly'
dependencies: ['flatpak-main:demo']
needs: ['flatpak-main:demo']
dependencies: ['flatpak-master:demo']
needs: ['flatpak-master:demo']
nightly factory:
extends: '.publish_nightly'
dependencies: ['flatpak-main:widget-factory']
needs: ['flatpak-main:widget-factory']
dependencies: ['flatpak-master:widget-factory']
needs: ['flatpak-master:widget-factory']
nightly icon-browser:
extends: '.publish_nightly'
dependencies: ['flatpak-main:icon-browser']
needs: ['flatpak-main:icon-browser']
dependencies: ['flatpak-master:icon-browser']
needs: ['flatpak-master:icon-browser']
static-scan:
image: $FEDORA_IMAGE
@@ -346,4 +346,4 @@ publish-docs:
- "curl -X POST -F token=${PAGES_TRIGGER_TOKEN} -F ref=docs-gtk-org https://gitlab.gnome.org/api/v4/projects/665/trigger/pipeline"
only:
refs:
- main
- master
+1 -1
View File
@@ -43,6 +43,6 @@ flatpak build-bundle \
${appid}
# to be consumed by the nightly publish jobs
if [[ $CI_COMMIT_BRANCH == main ]]; then
if [[ $CI_COMMIT_BRANCH == master ]]; then
tar cf repo.tar ${repodir}
fi
+1 -1
View File
@@ -268,7 +268,7 @@ aparser.add_argument('--job-id', metavar='ID',
default=None)
aparser.add_argument('--branch', metavar='NAME',
help='Branch of the project being tested',
default='main')
default='master')
aparser.add_argument('--output', metavar='FILE',
help='The output HTML file, stdout by default',
type=argparse.FileType('w', encoding='UTF-8'),
+1 -1
View File
@@ -27,7 +27,7 @@ aparser.add_argument('--job-id', metavar='ID',
default='Unknown')
aparser.add_argument('--branch', metavar='NAME',
help='Branch of the project being tested',
default='main')
default='master')
aparser.add_argument('--output', metavar='FILE',
help='The output file, stdout by default',
type=argparse.FileType('w', encoding='UTF-8'),
+3 -3
View File
@@ -2,7 +2,7 @@
set -e
# We need to add a new remote for the upstream main, since this script could
# We need to add a new remote for the upstream master, since this script could
# be running in a personal fork of the repository which has out of date branches.
if [ "${CI_PROJECT_NAMESPACE}" != "GNOME" ]; then
echo "Retrieving the current upstream repository from ${CI_PROJECT_NAMESPACE}/${CI_PROJECT_NAME}..."
@@ -16,7 +16,7 @@ fi
# Work out the newest common ancestor between the detached HEAD that this CI job
# has checked out, and the upstream target branch (which will typically be
# `upstream/main` or `upstream/gtk-3-24`).
# `upstream/master` or `upstream/gtk-3-24`).
#
# `${CI_MERGE_REQUEST_TARGET_BRANCH_NAME}` is only defined if were running in
# a merge request pipeline; fall back to `${CI_DEFAULT_BRANCH}` otherwise.
@@ -36,7 +36,7 @@ exit_status=$?
echo ""
echo "Note that clang-format output is advisory and cannot always match the"
echo "GTK coding style, documented at:"
echo " https://gitlab.gnome.org/GNOME/gtk/blob/main/docs/CODING-STYLE"
echo " https://gitlab.gnome.org/GNOME/gtk/blob/master/docs/CODING-STYLE"
echo "Warnings from this tool can be ignored in favour of the documented "
echo "coding style, or in favour of matching the style of existing"
echo "surrounding code."
+1 -1
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@@ -48,7 +48,7 @@ if ! pkg-config --atleast-version=2.66.0 glib-2.0; then
fi
pkg-config --modversion glib-2.0
if ! pkg-config --atleast-version=1.50.0 pango; then
if ! pkg-config --atleast-version=1.49.3 pango; then
git clone https://gitlab.gnome.org/GNOME/pango.git _pango
meson setup _pango_build _pango
meson compile -C _pango_build
+1 -1
View File
@@ -1,7 +1,7 @@
<!--
Please, read the CONTRIBUTING.md guide on how to file a new issue.
https://gitlab.gnome.org/GNOME/gtk/-/blob/main/CONTRIBUTING.md
https://gitlab.gnome.org/GNOME/gtk/-/blob/master/CONTRIBUTING.md
-->
## Steps to reproduce
<!--
+1 -1
View File
@@ -1,7 +1,7 @@
<!--
Please, read the CONTRIBUTING.md guide on how to file a new issue.
https://gitlab.gnome.org/GNOME/gtk/-/blob/main/CONTRIBUTING.md
https://gitlab.gnome.org/GNOME/gtk/-/blob/master/CONTRIBUTING.md
-->
## Steps to reproduce
+1 -1
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@@ -256,7 +256,7 @@ people committing to GTK to follow a few rules:
0. Always write a meaningful commit message. Changes without a sufficient
commit message will be reverted.
0. Never push to the `main` branch, or any stable branches, directly; you
0. Never push to the `master` branch, or any stable branches, directly; you
should always go through a merge request, to ensure that the code is
tested on the CI infrastructure at the very least. A merge request is
also the proper place to get a comprehensive code review from the core
-5
View File
@@ -1,8 +1,3 @@
Overview of Changes
===================
* Rename git `master` branch to `main`
Overview of Changes in 4.5.0
============================
+2 -16
View File
@@ -1,7 +1,7 @@
GTK — The GTK toolkit
=====================
[![Build status](https://gitlab.gnome.org/GNOME/gtk/badges/main/pipeline.svg)](https://gitlab.gnome.org/GNOME/gtk/-/commits/main)
[![Build status](https://gitlab.gnome.org/GNOME/gtk/badges/master/pipeline.svg)](https://gitlab.gnome.org/GNOME/gtk/-/commits/master)
General information
-------------------
@@ -40,7 +40,7 @@ Nightly documentation can be found at
Nightly flatpaks of our demos can be installed from the
[GNOME Nightly](https://wiki.gnome.org/Apps/Nightly) repository:
- `flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo`
- `flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo`
- `flatpak install gnome-nightly org.gtk.Demo4`
- `flatpak install gnome-nightly org.gtk.WidgetFactory4`
- `flatpak install gnome-nightly org.gtk.IconBrowser4`
@@ -116,20 +116,6 @@ docs/reference/gtk/html/gtk-building.html
Or [online](https://docs.gtk.org/gtk4/building.html)
Default branch renamed to `main`
--------------------------------
The default development branch of GTK has been renamed to `main`.
To update your local checkout, use:
```sh
git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main
```
How to report bugs
------------------
+1 -17
View File
@@ -164,21 +164,6 @@
}
]
},
{
"name" : "pango",
"buildsystem" : "meson",
"builddir" : true,
"config-opts" : [
"--libdir=/app/lib"
],
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/pango.git",
"branch" : "main"
}
]
},
{
"name" : "gtk",
"buildsystem" : "meson",
@@ -192,8 +177,7 @@
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/gtk.git",
"branch" : "main"
"url" : "https://gitlab.gnome.org/GNOME/gtk.git"
}
]
}
+1 -17
View File
@@ -93,21 +93,6 @@
}
]
},
{
"name" : "pango",
"buildsystem" : "meson",
"builddir" : true,
"config-opts" : [
"--libdir=/app/lib"
],
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/pango.git",
"branch" : "main"
}
]
},
{
"name" : "gtk",
"buildsystem" : "meson",
@@ -121,8 +106,7 @@
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/gtk.git",
"branch" : "main"
"url" : "https://gitlab.gnome.org/GNOME/gtk.git"
}
]
}
+1 -17
View File
@@ -93,21 +93,6 @@
}
]
},
{
"name" : "pango",
"buildsystem" : "meson",
"builddir" : true,
"config-opts" : [
"--libdir=/app/lib"
],
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/pango.git",
"branch" : "main"
}
]
},
{
"name" : "gtk",
"buildsystem" : "meson",
@@ -121,8 +106,7 @@
"sources" : [
{
"type" : "git",
"url" : "https://gitlab.gnome.org/GNOME/gtk.git",
"branch" : "main"
"url" : "https://gitlab.gnome.org/GNOME/gtk.git"
}
]
}
+3 -2
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@@ -24,7 +24,6 @@ do_cursors (GtkWidget *do_widget)
builder = gtk_builder_new_from_resource ("/cursors/cursors.ui");
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_signal_connect (window, "destroy",
@@ -35,7 +34,9 @@ do_cursors (GtkWidget *do_widget)
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
{
gtk_window_destroy (GTK_WINDOW (window));
}
return window;
}
File diff suppressed because it is too large Load Diff
-36
View File
@@ -1,36 +0,0 @@
#pragma once
#include <gtk/gtk.h>
G_BEGIN_DECLS
#define CURVE_TYPE_EDITOR (curve_editor_get_type ())
G_DECLARE_FINAL_TYPE (CurveEditor, curve_editor, CURVE, EDITOR, GtkWidget)
GtkWidget * curve_editor_new (void);
void curve_editor_set_edit (CurveEditor *self,
gboolean edit);
void curve_editor_set_path (CurveEditor *self,
GskPath *path);
GskPath * curve_editor_get_path (CurveEditor *self);
void curve_editor_set_stroke (CurveEditor *self,
GskStroke *stroke);
const GskStroke * curve_editor_get_stroke (CurveEditor *self);
void curve_editor_set_color (CurveEditor *self,
GdkRGBA *color);
const GdkRGBA * curve_editor_get_color (CurveEditor *self);
gboolean curve_editor_get_show_outline (CurveEditor *self);
void curve_editor_set_show_outline (CurveEditor *self,
gboolean show_outline);
G_END_DECLS
-272
View File
@@ -1,272 +0,0 @@
/* Path/Curve Editor
*
* This demo shows an elaborate curve editor that you would expect to find
* in a vector graphics editor. It is built on top of GTK's path APIs.
*/
#include <gtk/gtk.h>
#include "curve-editor.h"
static GskPath *
make_circle_path (void)
{
float w = 310;
float h = 310;
float cx = w / 2;
float cy = h / 2;
float pad = 20;
float r = (w - 2 * pad) / 2;
float k = 0.55228;
float kr = k * r;
GskPathBuilder *builder;
builder = gsk_path_builder_new ();
gsk_path_builder_move_to (builder, cx, pad);
gsk_path_builder_curve_to (builder, cx + kr, pad,
w - pad, cy - kr,
w - pad, cy);
gsk_path_builder_curve_to (builder, w - pad, cy + kr,
cx + kr, h - pad,
cx, h - pad);
gsk_path_builder_curve_to (builder, cx - kr, h - pad,
pad, cy + kr,
pad, cy);
gsk_path_builder_curve_to (builder, pad, cy - kr,
cx - kr, pad,
cx, pad);
gsk_path_builder_close (builder);
return gsk_path_builder_free_to_path (builder);
}
static void
edit_changed (GtkToggleButton *button,
GParamSpec *pspec,
CurveEditor *editor)
{
curve_editor_set_edit (editor, gtk_toggle_button_get_active (button));
}
static void
reset (GtkButton *button,
CurveEditor *editor)
{
GskPath *path;
path = make_circle_path ();
curve_editor_set_path (editor, path);
gsk_path_unref (path);
}
static void
line_width_changed (GtkSpinButton *spin,
CurveEditor *editor)
{
GskStroke *stroke;
stroke = gsk_stroke_copy (curve_editor_get_stroke (editor));
gsk_stroke_set_line_width (stroke, gtk_spin_button_get_value (spin));
curve_editor_set_stroke (editor, stroke);
gsk_stroke_free (stroke);
}
static void
cap_changed (GtkDropDown *combo,
GParamSpec *pspec,
CurveEditor *editor)
{
GskStroke *stroke;
stroke = gsk_stroke_copy (curve_editor_get_stroke (editor));
gsk_stroke_set_line_cap (stroke, (GskLineCap)gtk_drop_down_get_selected (combo));
curve_editor_set_stroke (editor, stroke);
gsk_stroke_free (stroke);
}
static void
join_changed (GtkDropDown *combo,
GParamSpec *pspec,
CurveEditor *editor)
{
GskStroke *stroke;
stroke = gsk_stroke_copy (curve_editor_get_stroke (editor));
gsk_stroke_set_line_join (stroke, (GskLineJoin)gtk_drop_down_get_selected (combo));
curve_editor_set_stroke (editor, stroke);
gsk_stroke_free (stroke);
}
static void
color_changed (GtkColorChooser *chooser,
GParamSpec *pspec,
CurveEditor *editor)
{
GdkRGBA color;
gtk_color_chooser_get_rgba (chooser, &color);
curve_editor_set_color (editor, &color);
}
static void
stroke_toggled (GtkCheckButton *button,
CurveEditor *editor)
{
curve_editor_set_show_outline (editor, gtk_check_button_get_active (button));
gtk_widget_queue_draw (GTK_WIDGET (editor));
}
static void
limit_changed (GtkSpinButton *spin,
CurveEditor *editor)
{
GskStroke *stroke;
stroke = gsk_stroke_copy (curve_editor_get_stroke (editor));
gsk_stroke_set_miter_limit (stroke, gtk_spin_button_get_value (spin));
curve_editor_set_stroke (editor, stroke);
gsk_stroke_free (stroke);
}
static void
dashes_changed (GtkEntry *entry,
GParamSpec *spec,
CurveEditor *editor)
{
const char *text;
char **split;
GArray *dash;
GskStroke *stroke;
text = gtk_editable_get_text (GTK_EDITABLE (entry));
split = g_strsplit (text, " ", 0);
dash = g_array_new (FALSE, FALSE, sizeof (float));
for (int i = 0; split[i] != NULL; i++)
{
double d;
char *endp = 0;
d = g_strtod (split[i], &endp);
if (*endp == '\0')
g_array_append_vals (dash, (float[1]) { d }, 1);
}
g_strfreev (split);
stroke = gsk_stroke_copy (curve_editor_get_stroke (editor));
gsk_stroke_set_dash (stroke, (const float *)dash->data, dash->len);
curve_editor_set_stroke (editor, stroke);
gsk_stroke_free (stroke);
g_array_free (dash, TRUE);
}
GtkWidget *
do_curve (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *demo;
GtkWidget *edit_toggle;
GtkWidget *reset_button;
GtkWidget *titlebar;
GtkWidget *stroke_toggle;
GtkWidget *line_width_spin;
GtkWidget *stroke_button;
GtkWidget *popover;
GtkWidget *grid;
GtkWidget *cap_combo;
GtkWidget *join_combo;
GtkWidget *color_button;
GtkWidget *limit_spin;
GtkWidget *dash_entry;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Curve Editor");
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
gtk_window_set_default_size (GTK_WINDOW (window), 310, 350);
edit_toggle = gtk_toggle_button_new ();
gtk_button_set_icon_name (GTK_BUTTON (edit_toggle), "document-edit-symbolic");
reset_button = gtk_button_new_from_icon_name ("edit-undo-symbolic");
stroke_button = gtk_menu_button_new ();
gtk_menu_button_set_icon_name (GTK_MENU_BUTTON (stroke_button), "open-menu-symbolic");
popover = gtk_popover_new ();
gtk_menu_button_set_popover (GTK_MENU_BUTTON (stroke_button), popover);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_popover_set_child (GTK_POPOVER (popover), grid);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Color:"), 0, 0, 1, 1);
color_button = gtk_color_button_new_with_rgba (&(GdkRGBA){ 0., 0., 0., 1.});
gtk_grid_attach (GTK_GRID (grid), color_button, 1, 0, 1, 1);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Line width:"), 0, 1, 1, 1);
line_width_spin = gtk_spin_button_new_with_range (1, 20, 1);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (line_width_spin), 1);
gtk_grid_attach (GTK_GRID (grid), line_width_spin, 1, 1, 1, 1);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Line cap:"), 0, 2, 1, 1);
cap_combo = gtk_drop_down_new_from_strings ((const char *[]){"Butt", "Round", "Square", NULL});
gtk_grid_attach (GTK_GRID (grid), cap_combo, 1, 2, 1, 1);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Line join:"), 0, 3, 1, 1);
join_combo = gtk_drop_down_new_from_strings ((const char *[]){"Miter", "Miter-clip", "Round", "Bevel", "Arcs", NULL});
gtk_grid_attach (GTK_GRID (grid), join_combo, 1, 3, 1, 1);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Miter limit:"), 0, 4, 1, 1);
limit_spin = gtk_spin_button_new_with_range (0, 10, 1);
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (limit_spin), 1);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (limit_spin), 4);
gtk_grid_attach (GTK_GRID (grid), limit_spin, 1, 4, 1, 1);
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Dashes:"), 0, 5, 1, 1);
dash_entry = gtk_entry_new ();
gtk_grid_attach (GTK_GRID (grid), dash_entry, 1, 5, 1, 1);
stroke_toggle = gtk_check_button_new_with_label ("Show outline");
gtk_grid_attach (GTK_GRID (grid), stroke_toggle, 1, 6, 1, 1);
titlebar = gtk_header_bar_new ();
gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), edit_toggle);
gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), reset_button);
gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), stroke_button);
gtk_window_set_titlebar (GTK_WINDOW (window), titlebar);
demo = curve_editor_new ();
g_signal_connect (stroke_toggle, "toggled", G_CALLBACK (stroke_toggled), demo);
g_signal_connect (edit_toggle, "notify::active", G_CALLBACK (edit_changed), demo);
g_signal_connect (reset_button, "clicked", G_CALLBACK (reset), demo);
g_signal_connect (cap_combo, "notify::selected", G_CALLBACK (cap_changed), demo);
g_signal_connect (join_combo, "notify::selected", G_CALLBACK (join_changed), demo);
g_signal_connect (color_button, "notify::rgba", G_CALLBACK (color_changed), demo);
g_signal_connect (line_width_spin, "value-changed", G_CALLBACK (line_width_changed), demo);
g_signal_connect (limit_spin, "value-changed", G_CALLBACK (limit_changed), demo);
g_signal_connect (dash_entry, "notify::text", G_CALLBACK (dashes_changed), demo);
reset (NULL, CURVE_EDITOR (demo));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (line_width_spin), 6);
gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (color_button), &(GdkRGBA) { 1, 0, 0, 1 });
gtk_drop_down_set_selected (GTK_DROP_DOWN (cap_combo), GSK_LINE_CAP_ROUND);
gtk_editable_set_text (GTK_EDITABLE (dash_entry), "0 8");
gtk_window_set_child (GTK_WINDOW (window), demo);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
-12
View File
@@ -249,10 +249,6 @@
<gresource prefix="/video-player">
<file>bbb.png</file>
</gresource>
<gresource prefix="/curve">
<file>curve-editor.c</file>
<file>curve-editor.h</file>
</gresource>
<gresource prefix="/sources">
<file>application_demo.c</file>
<file>assistant.c</file>
@@ -270,7 +266,6 @@
<file>css_pixbufs.c</file>
<file>css_shadows.c</file>
<file>cursors.c</file>
<file>curve.c</file>
<file>dialog.c</file>
<file>drawingarea.c</file>
<file>dropdown.c</file>
@@ -291,7 +286,6 @@
<file>gears.c</file>
<file>gestures.c</file>
<file>glarea.c</file>
<file>glyphs.c</file>
<file>gltransition.c</file>
<file>headerbar.c</file>
<file>hypertext.c</file>
@@ -330,9 +324,6 @@
<file>paintable_symbolic.c</file>
<file>panes.c</file>
<file>password_entry.c</file>
<file>path_fill.c</file>
<file>path_maze.c</file>
<file>path_text.c</file>
<file>peg_solitaire.c</file>
<file>pickers.c</file>
<file>printing.c</file>
@@ -417,9 +408,6 @@
<gresource prefix="/fontrendering">
<file>fontrendering.ui</file>
</gresource>
<gresource prefix="/path_text">
<file>path_text.ui</file>
</gresource>
<gresource prefix="/org/gtk/Demo4">
<file>icons/16x16/actions/application-exit.png</file>
<file>icons/16x16/actions/document-new.png</file>
File diff suppressed because it is too large Load Diff
+2 -8
View File
@@ -7,8 +7,7 @@
* shows.
*
* We also demonstrate adding other things to a text view, such as
* clickable icons and widgets which can also replace a character
* (try copying the ghost text).
* clickable icons.
*/
#include <gtk/gtk.h>
@@ -114,12 +113,7 @@ show_page (GtkTextView *text_view,
gtk_level_bar_set_value (GTK_LEVEL_BAR (child), 50);
gtk_widget_set_size_request (child, 100, -1);
gtk_text_view_add_child_at_anchor (text_view, child, anchor);
gtk_text_buffer_insert (buffer, &iter, " and labels with ", -1);
anchor = gtk_text_child_anchor_new_with_replacement ("👻");
gtk_text_buffer_insert_child_anchor (buffer, &iter, anchor);
child = gtk_label_new ("ghost");
gtk_text_view_add_child_at_anchor (text_view, child, anchor);
gtk_text_buffer_insert (buffer, &iter, " text.", -1);
gtk_text_buffer_insert (buffer, &iter, ".", -1);
}
else if (page == 2)
{
+15 -1
View File
@@ -177,6 +177,15 @@ file_open_cb (GtkWidget *button,
gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog));
}
static void
listview_activate_cb (GtkListView *listview,
guint pos,
gpointer unused)
{
gtk_fixed_item_selection_set_selected_position (GTK_FIXED_ITEM_SELECTION (gtk_list_view_get_model (listview)),
pos);
}
GtkWidget *
do_listview_words (GtkWidget *do_widget)
{
@@ -185,6 +194,7 @@ do_listview_words (GtkWidget *do_widget)
GtkWidget *header, *listview, *sw, *vbox, *search_entry, *open_button, *overlay;
GtkFilterListModel *filter_model;
GtkStringList *stringlist;
GtkFixedItemSelection *selection;
GtkFilter *filter;
GFile *file;
@@ -241,11 +251,15 @@ do_listview_words (GtkWidget *do_widget)
gtk_widget_set_vexpand (sw, TRUE);
gtk_overlay_set_child (GTK_OVERLAY (overlay), sw);
selection = gtk_fixed_item_selection_new (G_LIST_MODEL (filter_model));
listview = gtk_list_view_new (
GTK_SELECTION_MODEL (gtk_no_selection_new (G_LIST_MODEL (filter_model))),
GTK_SELECTION_MODEL (selection),
gtk_builder_list_item_factory_new_from_bytes (NULL,
g_bytes_new_static (factory_text, strlen (factory_text))));
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
gtk_list_view_set_single_click_activate (GTK_LIST_VIEW (listview), TRUE);
g_signal_connect (listview, "activate", G_CALLBACK (listview_activate_cb), NULL);
g_signal_connect (filter_model, "items-changed", G_CALLBACK (update_title_cb), progress);
g_signal_connect (filter_model, "notify::pending", G_CALLBACK (update_title_cb), progress);
+1 -1
View File
@@ -192,7 +192,7 @@ activate_about (GSimpleAction *action,
glib_micro_version);
g_string_append_printf (s, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
+2 -10
View File
@@ -17,7 +17,6 @@ demos = files([
'css_pixbufs.c',
'css_shadows.c',
'cursors.c',
'curve.c',
'dialog.c',
'drawingarea.c',
'dnd.c',
@@ -35,7 +34,6 @@ demos = files([
'gestures.c',
'glarea.c',
'gltransition.c',
'glyphs.c',
'headerbar.c',
'hypertext.c',
'iconscroll.c',
@@ -72,9 +70,6 @@ demos = files([
'paintable_symbolic.c',
'panes.c',
'password_entry.c',
'path_fill.c',
'path_maze.c',
'path_text.c',
'peg_solitaire.c',
'pickers.c',
'printing.c',
@@ -133,7 +128,6 @@ extra_demo_sources = files([
'script-names.c',
'unicode-names.c',
'suggestionentry.c',
'curve-editor.c',
])
if harfbuzz_dep.found() and pangoft_dep.found()
@@ -146,7 +140,7 @@ if os_unix
demos += files('pagesetup.c')
endif
librsvg_dep = dependency('librsvg-2.0', version: '>= 2.52.0', required: false)
librsvg_dep = dependency('librsvg-2.0', version: '>= 2.46.0', required: false)
if librsvg_dep.found()
demos += files('paintable_svg.c')
@@ -234,9 +228,7 @@ endif
# Use a subset of compiler flags
demo_cflags = []
foreach flag: common_cflags
if flag not in ['-Werror=missing-prototypes', '-Wmissing-prototypes',
'-Werror=missing-declarations', '-Wmissing-declarations',
'-fvisibility=hidden']
if flag not in ['-Werror=missing-prototypes', '-Werror=missing-declarations', '-fvisibility=hidden']
demo_cflags += flag
endif
endforeach
-348
View File
@@ -1,348 +0,0 @@
/* Path/Text Fill
*
* This demo shows how to use PangoCairo to draw text with more than
* just a single color.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include "paintable.h"
#include "gsk/gskpathdashprivate.h"
#define GTK_TYPE_PATH_PAINTABLE (gtk_path_paintable_get_type ())
G_DECLARE_FINAL_TYPE (GtkPathPaintable, gtk_path_paintable, GTK, PATH_PAINTABLE, GObject)
struct _GtkPathPaintable
{
GObject parent_instance;
int width;
int height;
GskPath *path;
GdkPaintable *background;
};
struct _GtkPathPaintableClass
{
GObjectClass parent_class;
};
static int
gtk_path_paintable_get_intrinsic_width (GdkPaintable *paintable)
{
GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
if (self->background)
return MAX (gdk_paintable_get_intrinsic_width (self->background), self->width);
else
return self->width;
}
static int
gtk_path_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
if (self->background)
return MAX (gdk_paintable_get_intrinsic_height (self->background), self->height);
else
return self->height;
}
static void
gtk_path_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
#if 0
gtk_snapshot_push_fill (snapshot, self->path, GSK_FILL_RULE_WINDING);
#else
GskStroke *stroke = gsk_stroke_new (2.0);
gtk_snapshot_push_stroke (snapshot, self->path, stroke);
gsk_stroke_free (stroke);
#endif
if (self->background)
{
gdk_paintable_snapshot (self->background, snapshot, width, height);
}
else
{
gtk_snapshot_append_linear_gradient (snapshot,
&GRAPHENE_RECT_INIT (0, 0, width, height),
&GRAPHENE_POINT_INIT (0, 0),
&GRAPHENE_POINT_INIT (width, height),
(GskColorStop[8]) {
{ 0.0, { 1.0, 0.0, 0.0, 1.0 } },
{ 0.2, { 1.0, 0.0, 0.0, 1.0 } },
{ 0.3, { 1.0, 1.0, 0.0, 1.0 } },
{ 0.4, { 0.0, 1.0, 0.0, 1.0 } },
{ 0.6, { 0.0, 1.0, 1.0, 1.0 } },
{ 0.7, { 0.0, 0.0, 1.0, 1.0 } },
{ 0.8, { 1.0, 0.0, 1.0, 1.0 } },
{ 1.0, { 1.0, 0.0, 1.0, 1.0 } }
},
8);
}
gtk_snapshot_pop (snapshot);
}
static GdkPaintableFlags
gtk_path_paintable_get_flags (GdkPaintable *paintable)
{
GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
if (self->background)
return gdk_paintable_get_flags (self->background);
else
return GDK_PAINTABLE_STATIC_CONTENTS | GDK_PAINTABLE_STATIC_SIZE;
}
static void
gtk_path_paintable_paintable_init (GdkPaintableInterface *iface)
{
iface->get_intrinsic_width = gtk_path_paintable_get_intrinsic_width;
iface->get_intrinsic_height = gtk_path_paintable_get_intrinsic_height;
iface->snapshot = gtk_path_paintable_snapshot;
iface->get_flags = gtk_path_paintable_get_flags;
}
/* When defining the GType, we need to implement the GdkPaintable interface */
G_DEFINE_TYPE_WITH_CODE (GtkPathPaintable, gtk_path_paintable, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
gtk_path_paintable_paintable_init))
/* Here's the boilerplate for the GObject declaration.
* We don't need to do anything special here, because we keep no
* data of our own.
*/
static void
gtk_path_paintable_class_init (GtkPathPaintableClass *klass)
{
}
static void
gtk_path_paintable_init (GtkPathPaintable *self)
{
}
/* And finally, we add a simple constructor.
* It is declared in the header so that the other examples
* can use it.
*/
GdkPaintable *
gtk_path_paintable_new (GskPath *path,
GdkPaintable *background,
int width,
int height)
{
GtkPathPaintable *self;
self = g_object_new (GTK_TYPE_PATH_PAINTABLE, NULL);
self->path = path;
self->background = background;
if (self->background)
{
g_signal_connect_swapped (self->background, "invalidate-contents", G_CALLBACK (gdk_paintable_invalidate_contents), self);
g_signal_connect_swapped (self->background, "invalidate-size", G_CALLBACK (gdk_paintable_invalidate_size), self);
}
self->width = width;
self->height = height;
return GDK_PAINTABLE (self);
}
void
gtk_path_paintable_set_path (GtkPathPaintable *self,
GskPath *path)
{
g_clear_pointer (&self->path, gsk_path_unref);
self->path = gsk_path_ref (path);
gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
}
static GskPath *
create_hexagon (GtkWidget *widget)
{
GskPathBuilder *builder;
builder = gsk_path_builder_new ();
gsk_path_builder_move_to (builder, 120, 0);
gsk_path_builder_line_to (builder, 360, 0);
gsk_path_builder_line_to (builder, 480, 208);
gsk_path_builder_line_to (builder, 360, 416);
gsk_path_builder_line_to (builder, 120, 416);
gsk_path_builder_line_to (builder, 0, 208);
gsk_path_builder_close (builder);
return gsk_path_builder_free_to_path (builder);
}
static GskPath *
create_path_from_text (GtkWidget *widget)
{
PangoLayout *layout;
PangoFontDescription *desc;
GskPathBuilder *builder;
layout = gtk_widget_create_pango_layout (widget, "Pango power!\nPango power!\nPango power!");
desc = pango_font_description_from_string ("sans bold 36");
pango_layout_set_font_description (layout, desc);
pango_font_description_free (desc);
builder = gsk_path_builder_new ();
gsk_path_builder_add_layout (builder, layout);
return gsk_path_builder_free_to_path (builder);
}
static gboolean
build_path (GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight,
gpointer user_data)
{
GskPathBuilder *builder = user_data;
switch (op)
{
case GSK_PATH_MOVE:
gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
break;
case GSK_PATH_CLOSE:
gsk_path_builder_close (builder);
break;
case GSK_PATH_LINE:
gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
break;
case GSK_PATH_CURVE:
gsk_path_builder_curve_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
break;
case GSK_PATH_CONIC:
gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, weight);
break;
default:
g_assert_not_reached ();
break;
}
return TRUE;
}
static gboolean
update_path (GtkWidget *widget,
GdkFrameClock *frame_clock,
gpointer measure)
{
float progress = gdk_frame_clock_get_frame_time (frame_clock) % (60 * G_USEC_PER_SEC) / (float) (30 * G_USEC_PER_SEC);
GskPathBuilder *builder;
GskPath *path;
graphene_point_t pos;
graphene_vec2_t tangent;
GskStroke *stroke;
builder = gsk_path_builder_new ();
gsk_path_builder_add_segment (builder,
measure,
#if 1
0.0, gsk_path_measure_get_length (measure));
#else
progress > 1 ? (progress - 1) * gsk_path_measure_get_length (measure) : 0.0,
(progress < 1 ? progress : 1.0) * gsk_path_measure_get_length (measure));
#endif
path = gsk_path_builder_free_to_path (builder);
stroke = gsk_stroke_new (1);
gsk_stroke_set_dash (stroke, (float[2]) { 10, 5 }, 2);
gsk_stroke_set_dash_offset (stroke, - (gdk_frame_clock_get_frame_time (frame_clock) % G_USEC_PER_SEC) * 15. / G_USEC_PER_SEC);
builder = gsk_path_builder_new ();
gsk_path_dash (path, stroke, 0.2, build_path, builder);
gsk_path_unref (path);
gsk_path_measure_get_point (measure,
(progress > 1 ? (progress - 1) : progress) * gsk_path_measure_get_length (measure),
&pos,
&tangent);
gsk_path_builder_move_to (builder, pos.x + 5 * graphene_vec2_get_x (&tangent), pos.y + 5 * graphene_vec2_get_y (&tangent));
gsk_path_builder_line_to (builder, pos.x + 3 * graphene_vec2_get_y (&tangent), pos.y + 3 * graphene_vec2_get_x (&tangent));
gsk_path_builder_line_to (builder, pos.x - 3 * graphene_vec2_get_y (&tangent), pos.y - 3 * graphene_vec2_get_x (&tangent));
gsk_path_builder_close (builder);
path = gsk_path_builder_free_to_path (builder);
gtk_path_paintable_set_path (GTK_PATH_PAINTABLE (gtk_picture_get_paintable (GTK_PICTURE (widget))),
path);
gsk_path_unref (path);
return G_SOURCE_CONTINUE;
}
GtkWidget *
do_path_fill (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *picture;
GdkPaintable *paintable;
GtkMediaStream *stream;
GskPath *path;
graphene_rect_t bounds;
GskPathMeasure *measure;
window = gtk_window_new ();
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_window_set_title (GTK_WINDOW (window), "Path Fill");
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
#if 0
stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
#else
stream = gtk_nuclear_media_stream_new ();
#endif
gtk_media_stream_play (stream);
gtk_media_stream_set_loop (stream, TRUE);
path = create_hexagon (window);
path = create_path_from_text (window);
gsk_path_get_bounds (path, &bounds);
paintable = gtk_path_paintable_new (path,
GDK_PAINTABLE (stream),
bounds.origin.x + bounds.size.width,
bounds.origin.y + bounds.size.height);
picture = gtk_picture_new_for_paintable (paintable);
measure = gsk_path_measure_new (path);
gtk_widget_add_tick_callback (picture, update_path, measure, (GDestroyNotify) gsk_path_measure_unref);
gtk_picture_set_keep_aspect_ratio (GTK_PICTURE (picture), FALSE);
gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
g_object_unref (paintable);
gtk_window_set_child (GTK_WINDOW (window), picture);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
-339
View File
@@ -1,339 +0,0 @@
/* Path/Maze
* #Keywords: game, mouse
*
* This demo shows how to use a GskPath to create a maze and use
* gsk_path_measure_get_closest_point() to check the mouse stays
* on the path.
*
* It also shows off the performance of GskPath (or not) as this
* is a rather complex path.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include "paintable.h"
#define MAZE_GRID_SIZE 20
#define MAZE_STROKE_SIZE_ACTIVE (MAZE_GRID_SIZE - 4)
#define MAZE_STROKE_SIZE_INACTIVE (MAZE_GRID_SIZE - 12)
#define MAZE_WIDTH 31
#define MAZE_HEIGHT 21
#define GTK_TYPE_MAZE (gtk_maze_get_type ())
G_DECLARE_FINAL_TYPE (GtkMaze, gtk_maze, GTK, MAZE, GtkWidget)
struct _GtkMaze
{
GtkWidget parent_instance;
int width;
int height;
GskPath *path;
GskPathMeasure *measure;
GdkPaintable *background;
gboolean active;
};
struct _GtkMazeClass
{
GtkWidgetClass parent_class;
};
G_DEFINE_TYPE (GtkMaze, gtk_maze, GTK_TYPE_WIDGET)
static void
gtk_maze_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkMaze *self = GTK_MAZE (widget);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
*minimum = *natural = self->width;
else
*minimum = *natural = self->height;
}
static void
gtk_maze_snapshot (GtkWidget *widget,
GdkSnapshot *snapshot)
{
GtkMaze *self = GTK_MAZE (widget);
double width = gtk_widget_get_width (widget);
double height = gtk_widget_get_height (widget);
GskStroke *stroke;
stroke = gsk_stroke_new (MAZE_STROKE_SIZE_INACTIVE);
if (self->active)
gsk_stroke_set_line_width (stroke, MAZE_STROKE_SIZE_ACTIVE);
gsk_stroke_set_line_join (stroke, GSK_LINE_JOIN_ROUND);
gsk_stroke_set_line_cap (stroke, GSK_LINE_CAP_ROUND);
gtk_snapshot_push_stroke (snapshot, self->path, stroke);
gsk_stroke_free (stroke);
if (self->background)
{
gdk_paintable_snapshot (self->background, snapshot, width, height);
}
else
{
gtk_snapshot_append_linear_gradient (snapshot,
&GRAPHENE_RECT_INIT (0, 0, width, height),
&GRAPHENE_POINT_INIT (0, 0),
&GRAPHENE_POINT_INIT (width, height),
(GskColorStop[8]) {
{ 0.0, { 1.0, 0.0, 0.0, 1.0 } },
{ 0.2, { 1.0, 0.0, 0.0, 1.0 } },
{ 0.3, { 1.0, 1.0, 0.0, 1.0 } },
{ 0.4, { 0.0, 1.0, 0.0, 1.0 } },
{ 0.6, { 0.0, 1.0, 1.0, 1.0 } },
{ 0.7, { 0.0, 0.0, 1.0, 1.0 } },
{ 0.8, { 1.0, 0.0, 1.0, 1.0 } },
{ 1.0, { 1.0, 0.0, 1.0, 1.0 } }
},
8);
}
gtk_snapshot_pop (snapshot);
}
static void
gtk_maze_dispose (GObject *object)
{
GtkMaze *self = GTK_MAZE (object);
g_clear_pointer (&self->path, gsk_path_unref);
g_clear_pointer (&self->measure, gsk_path_measure_unref);
if (self->background)
{
g_signal_handlers_disconnect_matched (self->background, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
g_clear_object (&self->background);
}
G_OBJECT_CLASS (gtk_maze_parent_class)->dispose (object);
}
static void
gtk_maze_class_init (GtkMazeClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gtk_maze_dispose;
widget_class->measure = gtk_maze_measure;
widget_class->snapshot = gtk_maze_snapshot;
}
static void
pointer_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkMaze *self)
{
if (!self->active)
return;
if (gsk_path_measure_get_closest_point (self->measure, &GRAPHENE_POINT_INIT (x, y), NULL) <= MAZE_STROKE_SIZE_ACTIVE / 2.0f)
return;
self->active = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
pointer_leave (GtkEventControllerMotion *controller,
GtkMaze *self)
{
if (!self->active)
{
self->active = TRUE;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
}
static void
gtk_maze_init (GtkMaze *self)
{
GtkEventController *controller;
controller = GTK_EVENT_CONTROLLER (gtk_event_controller_motion_new ());
g_signal_connect (controller, "motion", G_CALLBACK (pointer_motion), self);
g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
self->active = TRUE;
}
static void
gtk_maze_set_path (GtkMaze *self,
GskPath *path)
{
g_clear_pointer (&self->path, gsk_path_unref);
g_clear_pointer (&self->measure, gsk_path_measure_unref);
self->path = gsk_path_ref (path);
self->measure = gsk_path_measure_new (path);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
GtkWidget *
gtk_maze_new (GskPath *path,
GdkPaintable *background,
int width,
int height)
{
GtkMaze *self;
self = g_object_new (GTK_TYPE_MAZE, NULL);
gtk_maze_set_path (self, path);
gsk_path_unref (path);
self->background = background;
if (self->background)
{
g_signal_connect_swapped (self->background, "invalidate-contents", G_CALLBACK (gtk_widget_queue_draw), self);
g_signal_connect_swapped (self->background, "invalidate-size", G_CALLBACK (gtk_widget_queue_resize), self);
}
self->width = width;
self->height = height;
return GTK_WIDGET (self);
}
static void
add_point_to_maze (GtkBitset *maze,
GskPathBuilder *builder,
guint x,
guint y)
{
gboolean set[4] = { };
guint dir;
gtk_bitset_add (maze, y * MAZE_WIDTH + x);
while (TRUE)
{
set[0] = set[0] || x == 0 || gtk_bitset_contains (maze, y * MAZE_WIDTH + x - 1);
set[1] = set[1] || y == 0 || gtk_bitset_contains (maze, (y - 1) * MAZE_WIDTH + x);
set[2] = set[2] || x + 1 == MAZE_WIDTH || gtk_bitset_contains (maze, y * MAZE_WIDTH + x + 1);
set[3] = set[3] || y + 1 == MAZE_HEIGHT || gtk_bitset_contains (maze, (y + 1) * MAZE_WIDTH + x);
if (set[0] && set[1] && set[2] && set[3])
return;
do
{
dir = g_random_int_range (0, 4);
}
while (set[dir]);
switch (dir)
{
case 0:
gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, (x - 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
add_point_to_maze (maze, builder, x - 1, y);
break;
case 1:
gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y - 0.5) * MAZE_GRID_SIZE);
add_point_to_maze (maze, builder, x, y - 1);
break;
case 2:
gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, (x + 1.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
add_point_to_maze (maze, builder, x + 1, y);
break;
case 3:
gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 1.5) * MAZE_GRID_SIZE);
add_point_to_maze (maze, builder, x, y + 1);
break;
default:
g_assert_not_reached ();
break;
}
}
}
static GskPath *
create_path_for_maze (GtkWidget *widget)
{
GskPathBuilder *builder;
GtkBitset *maze;
builder = gsk_path_builder_new ();
maze = gtk_bitset_new_empty ();
/* make sure the outer lines are unreachable:
* Set the full range, then remove the center again. */
gtk_bitset_add_range (maze, 0, MAZE_WIDTH * MAZE_HEIGHT);
gtk_bitset_remove_rectangle (maze, MAZE_WIDTH + 1, MAZE_WIDTH - 2, MAZE_HEIGHT - 2, MAZE_WIDTH);
/* Fill the maze */
add_point_to_maze (maze, builder, MAZE_WIDTH / 2, MAZE_HEIGHT / 2);
/* Add start and stop lines */
gsk_path_builder_move_to (builder, 1.5 * MAZE_GRID_SIZE, -0.5 * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, 1.5 * MAZE_GRID_SIZE, 1.5 * MAZE_GRID_SIZE);
gsk_path_builder_move_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT - 1.5) * MAZE_GRID_SIZE);
gsk_path_builder_line_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT + 0.5) * MAZE_GRID_SIZE);
gtk_bitset_unref (maze);
return gsk_path_builder_free_to_path (builder);
}
GtkWidget *
do_path_maze (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *maze;
GtkMediaStream *stream;
GskPath *path;
window = gtk_window_new ();
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_window_set_title (GTK_WINDOW (window), "Follow the maze with the mouse");
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
#if 0
stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
#else
stream = gtk_nuclear_media_stream_new ();
#endif
gtk_media_stream_play (stream);
gtk_media_stream_set_loop (stream, TRUE);
path = create_path_for_maze (window);
maze = gtk_maze_new (path,
GDK_PAINTABLE (stream),
MAZE_WIDTH * MAZE_GRID_SIZE,
MAZE_HEIGHT * MAZE_GRID_SIZE);
gtk_window_set_child (GTK_WINDOW (window), maze);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
-594
View File
@@ -1,594 +0,0 @@
/* Path/Curved Text
*
* This demo shows how to use GskPath to animate a path along another path.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#define GTK_TYPE_PATH_WIDGET (gtk_path_widget_get_type ())
G_DECLARE_FINAL_TYPE (GtkPathWidget, gtk_path_widget, GTK, PATH_WIDGET, GtkWidget)
#define POINT_SIZE 8
enum {
PROP_0,
PROP_TEXT,
PROP_EDITABLE,
N_PROPS
};
struct _GtkPathWidget
{
GtkWidget parent_instance;
char *text;
gboolean editable;
graphene_point_t points[4];
guint active_point;
float line_closest;
GskPath *line_path;
GskPathMeasure *line_measure;
GskPath *text_path;
GdkPaintable *background;
};
struct _GtkPathWidgetClass
{
GtkWidgetClass parent_class;
};
static GParamSpec *properties[N_PROPS] = { NULL, };
G_DEFINE_TYPE (GtkPathWidget, gtk_path_widget, GTK_TYPE_WIDGET)
static GskPath *
create_path_from_text (GtkWidget *widget,
const char *text)
{
cairo_surface_t *surface;
cairo_t *cr;
cairo_path_t *path;
PangoLayout *layout;
PangoFontDescription *desc;
GskPath *result;
surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
cr = cairo_create (surface);
layout = gtk_widget_create_pango_layout (widget, text);
desc = pango_font_description_from_string ("sans bold 36");
pango_layout_set_font_description (layout, desc);
pango_font_description_free (desc);
cairo_move_to (cr, 0, - pango_layout_get_baseline (layout) / (double) PANGO_SCALE);
pango_cairo_layout_path (cr, layout);
path = cairo_copy_path_flat (cr);
result = gsk_path_new_from_cairo (path);
cairo_path_destroy (path);
g_object_unref (layout);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return result;
}
typedef struct
{
GskPathMeasure *measure;
GskPathBuilder *builder;
double scale;
} GtkPathTransform;
static void
gtk_path_transform_point (GskPathMeasure *measure,
const graphene_point_t *pt,
float scale,
graphene_point_t *res)
{
graphene_vec2_t tangent;
gsk_path_measure_get_point (measure, pt->x * scale, res, &tangent);
res->x -= pt->y * scale * graphene_vec2_get_y (&tangent);
res->y += pt->y * scale * graphene_vec2_get_x (&tangent);
}
static gboolean
gtk_path_transform_op (GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight,
gpointer data)
{
GtkPathTransform *transform = data;
switch (op)
{
case GSK_PATH_MOVE:
{
graphene_point_t res;
gtk_path_transform_point (transform->measure, &pts[0], transform->scale, &res);
gsk_path_builder_move_to (transform->builder, res.x, res.y);
}
break;
case GSK_PATH_LINE:
{
graphene_point_t res;
gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res);
gsk_path_builder_line_to (transform->builder, res.x, res.y);
}
break;
case GSK_PATH_CURVE:
{
graphene_point_t res[3];
gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res[0]);
gtk_path_transform_point (transform->measure, &pts[2], transform->scale, &res[1]);
gtk_path_transform_point (transform->measure, &pts[3], transform->scale, &res[2]);
gsk_path_builder_curve_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, res[2].x, res[2].y);
}
break;
case GSK_PATH_CONIC:
{
graphene_point_t res[2];
gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res[0]);
gtk_path_transform_point (transform->measure, &pts[2], transform->scale, &res[1]);
gsk_path_builder_conic_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, weight);
}
break;
case GSK_PATH_CLOSE:
gsk_path_builder_close (transform->builder);
break;
default:
g_assert_not_reached();
return FALSE;
}
return TRUE;
}
static GskPath *
gtk_path_transform (GskPathMeasure *measure,
GskPath *path)
{
GtkPathTransform transform = { measure, gsk_path_builder_new () };
graphene_rect_t bounds;
gsk_path_get_bounds (path, &bounds);
if (bounds.origin.x + bounds.size.width > 0)
transform.scale = gsk_path_measure_get_length (measure) / (bounds.origin.x + bounds.size.width);
else
transform.scale = 1.0f;
gsk_path_foreach (path, GSK_PATH_FOREACH_ALLOW_CURVE, gtk_path_transform_op, &transform);
return gsk_path_builder_free_to_path (transform.builder);
}
static void
gtk_path_widget_clear_text_path (GtkPathWidget *self)
{
g_clear_pointer (&self->text_path, gsk_path_unref);
}
static void
gtk_path_widget_clear_paths (GtkPathWidget *self)
{
gtk_path_widget_clear_text_path (self);
g_clear_pointer (&self->line_path, gsk_path_unref);
g_clear_pointer (&self->line_measure, gsk_path_measure_unref);
}
static void
gtk_path_widget_create_text_path (GtkPathWidget *self)
{
GskPath *path;
gtk_path_widget_clear_text_path (self);
if (self->line_measure == NULL)
return;
path = create_path_from_text (GTK_WIDGET (self), self->text);
self->text_path = gtk_path_transform (self->line_measure, path);
gsk_path_unref (path);
}
static void
gtk_path_widget_create_paths (GtkPathWidget *self)
{
double width = gtk_widget_get_width (GTK_WIDGET (self));
double height = gtk_widget_get_height (GTK_WIDGET (self));
GskPathBuilder *builder;
gtk_path_widget_clear_paths (self);
if (width <= 0 || height <= 0)
return;
builder = gsk_path_builder_new ();
gsk_path_builder_move_to (builder,
self->points[0].x * width, self->points[0].y * height);
gsk_path_builder_curve_to (builder,
self->points[1].x * width, self->points[1].y * height,
self->points[2].x * width, self->points[2].y * height,
self->points[3].x * width, self->points[3].y * height);
self->line_path = gsk_path_builder_free_to_path (builder);
self->line_measure = gsk_path_measure_new (self->line_path);
gtk_path_widget_create_text_path (self);
}
static void
gtk_path_widget_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkPathWidget *self = GTK_PATH_WIDGET (widget);
GTK_WIDGET_CLASS (gtk_path_widget_parent_class)->size_allocate (widget, width, height, baseline);
gtk_path_widget_create_paths (self);
}
static void
gtk_path_widget_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkPathWidget *self = GTK_PATH_WIDGET (widget);
double width = gtk_widget_get_width (widget);
double height = gtk_widget_get_height (widget);
GskPath *path;
GskStroke *stroke;
gsize i;
/* frosted glass the background */
gtk_snapshot_push_blur (snapshot, 100);
gdk_paintable_snapshot (self->background, snapshot, width, height);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 1, 1, 0.5 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_pop (snapshot);
/* draw the text */
if (self->text_path)
{
gtk_snapshot_push_fill (snapshot, self->text_path, GSK_FILL_RULE_WINDING);
gdk_paintable_snapshot (self->background, snapshot, width, height);
/* ... with an emboss effect */
stroke = gsk_stroke_new (2.0);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT(1, 1));
gtk_snapshot_push_stroke (snapshot, self->text_path, stroke);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 0.2 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gsk_stroke_free (stroke);
gtk_snapshot_pop (snapshot);
gtk_snapshot_pop (snapshot);
}
if (self->editable && self->line_path)
{
/* draw the control line */
stroke = gsk_stroke_new (1.0);
gtk_snapshot_push_stroke (snapshot, self->line_path, stroke);
gsk_stroke_free (stroke);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_pop (snapshot);
}
if (self->line_closest >= 0)
{
GskPathBuilder *builder;
graphene_point_t closest;
builder = gsk_path_builder_new ();
gsk_path_measure_get_point (self->line_measure, self->line_closest, &closest, NULL);
gsk_path_builder_add_circle (builder, &closest, POINT_SIZE);
path = gsk_path_builder_free_to_path (builder);
gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_pop (snapshot);
gsk_path_unref (path);
}
if (self->editable && self->line_path)
{
GskPathBuilder *builder;
/* draw the points */
builder = gsk_path_builder_new ();
for (i = 0; i < 4; i++)
{
gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (self->points[i].x * width, self->points[i].y * height), POINT_SIZE);
}
path = gsk_path_builder_free_to_path (builder);
gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 1, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_pop (snapshot);
stroke = gsk_stroke_new (1.0);
gtk_snapshot_push_stroke (snapshot, path, stroke);
gsk_stroke_free (stroke);
gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_pop (snapshot);
gsk_path_unref (path);
}
}
static void
gtk_path_widget_set_text (GtkPathWidget *self,
const char *text)
{
if (g_strcmp0 (self->text, text) == 0)
return;
g_free (self->text);
self->text = g_strdup (text);
gtk_path_widget_create_paths (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_TEXT]);
}
static void
gtk_path_widget_set_editable (GtkPathWidget *self,
gboolean editable)
{
if (self->editable == editable)
return;
self->editable = editable;
gtk_widget_queue_draw (GTK_WIDGET (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_EDITABLE]);
}
static void
gtk_path_widget_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkPathWidget *self = GTK_PATH_WIDGET (object);
switch (prop_id)
{
case PROP_TEXT:
gtk_path_widget_set_text (self, g_value_get_string (value));
break;
case PROP_EDITABLE:
gtk_path_widget_set_editable (self, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_path_widget_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkPathWidget *self = GTK_PATH_WIDGET (object);
switch (prop_id)
{
case PROP_TEXT:
g_value_set_string (value, self->text);
break;
case PROP_EDITABLE:
g_value_set_boolean (value, self->editable);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_path_widget_dispose (GObject *object)
{
GtkPathWidget *self = GTK_PATH_WIDGET (object);
gtk_path_widget_clear_paths (self);
G_OBJECT_CLASS (gtk_path_widget_parent_class)->dispose (object);
}
static void
gtk_path_widget_class_init (GtkPathWidgetClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gtk_path_widget_dispose;
object_class->set_property = gtk_path_widget_set_property;
object_class->get_property = gtk_path_widget_get_property;
widget_class->size_allocate = gtk_path_widget_allocate;
widget_class->snapshot = gtk_path_widget_snapshot;
properties[PROP_TEXT] =
g_param_spec_string ("text",
"text",
"Text transformed along a path",
NULL,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
properties[PROP_EDITABLE] =
g_param_spec_boolean ("editable",
"editable",
"If the path can be edited by the user",
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, N_PROPS, properties);
}
static void
drag_begin (GtkGestureDrag *gesture,
double x,
double y,
GtkPathWidget *self)
{
graphene_point_t mouse = GRAPHENE_POINT_INIT (x, y);
double width = gtk_widget_get_width (GTK_WIDGET (self));
double height = gtk_widget_get_height (GTK_WIDGET (self));
gsize i;
for (i = 0; i < 4; i++)
{
if (graphene_point_distance (&GRAPHENE_POINT_INIT (self->points[i].x * width, self->points[i].y * height), &mouse, NULL, NULL) <= POINT_SIZE)
{
self->active_point = i;
break;
}
}
if (i == 4)
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
drag_update (GtkGestureDrag *drag,
double offset_x,
double offset_y,
GtkPathWidget *self)
{
double width = gtk_widget_get_width (GTK_WIDGET (self));
double height = gtk_widget_get_height (GTK_WIDGET (self));
double start_x, start_y;
gtk_gesture_drag_get_start_point (drag, &start_x, &start_y);
self->points[self->active_point] = GRAPHENE_POINT_INIT ((start_x + offset_x) / width,
(start_y + offset_y) / height);
self->points[self->active_point].x = CLAMP (self->points[self->active_point].x, 0, 1);
self->points[self->active_point].y = CLAMP (self->points[self->active_point].y, 0, 1);
gtk_path_widget_create_paths (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
pointer_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkPathWidget *self)
{
gsk_path_measure_get_closest_point_full (self->line_measure,
&GRAPHENE_POINT_INIT (x, y),
INFINITY,
NULL, NULL,
&self->line_closest,
NULL);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
pointer_leave (GtkEventControllerMotion *controller,
GtkPathWidget *self)
{
self->line_closest = -1;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
gtk_path_widget_init (GtkPathWidget *self)
{
GtkEventController *controller;
controller = GTK_EVENT_CONTROLLER (gtk_gesture_drag_new ());
g_signal_connect (controller, "drag-begin", G_CALLBACK (drag_begin), self);
g_signal_connect (controller, "drag-update", G_CALLBACK (drag_update), self);
g_signal_connect (controller, "drag-end", G_CALLBACK (drag_update), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
controller = GTK_EVENT_CONTROLLER (gtk_event_controller_motion_new ());
g_signal_connect (controller, "enter", G_CALLBACK (pointer_motion), self);
g_signal_connect (controller, "motion", G_CALLBACK (pointer_motion), self);
g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
self->line_closest = -1;
self->points[0] = GRAPHENE_POINT_INIT (0.1, 0.9);
self->points[1] = GRAPHENE_POINT_INIT (0.3, 0.1);
self->points[2] = GRAPHENE_POINT_INIT (0.7, 0.1);
self->points[3] = GRAPHENE_POINT_INIT (0.9, 0.9);
self->background = GDK_PAINTABLE (gdk_texture_new_from_resource ("/sliding_puzzle/portland-rose.jpg"));
gtk_path_widget_set_text (self, "It's almost working");
}
GtkWidget *
gtk_path_widget_new (void)
{
GtkPathWidget *self;
self = g_object_new (GTK_TYPE_PATH_WIDGET, NULL);
return GTK_WIDGET (self);
}
GtkWidget *
do_path_text (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkBuilder *builder;
g_type_ensure (GTK_TYPE_PATH_WIDGET);
builder = gtk_builder_new_from_resource ("/path_text/path_text.ui");
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
g_object_unref (builder);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
-38
View File
@@ -1,38 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="GtkWindow" id="window">
<property name="title" translatable="yes">Text along a Path</property>
<child type="titlebar">
<object class="GtkHeaderBar">
<child type="end">
<object class="GtkToggleButton" id="edit-toggle">
<property name="icon-name">document-edit-symbolic</property>
</object>
</child>
</object>
</child>
<child>
<object class="GtkBox">
<property name="orientation">vertical</property>
<child>
<object class="GtkRevealer">
<property name="reveal-child" bind-source="edit-toggle" bind-property="active" bind-flags="sync-create"></property>
<child>
<object class="GtkEntry" id="text">
<property name="text">Through the looking glass</property>
</object>
</child>
</object>
</child>
<child>
<object class="GtkPathWidget" id="view">
<property name="editable" bind-source="edit-toggle" bind-property="active" bind-flags="sync-create"></property>
<property name="text" bind-source="text" bind-property="text" bind-flags="sync-create"></property>
<property name="hexpand">true</property>
<property name="vexpand">true</property>
</object>
</child>
</object>
</child>
</object>
</interface>
+6 -8
View File
@@ -47,24 +47,22 @@ static int
svg_paintable_get_intrinsic_width (GdkPaintable *paintable)
{
SvgPaintable *self = SVG_PAINTABLE (paintable);
double width;
RsvgDimensionData data;
if (!rsvg_handle_get_intrinsic_size_in_pixels (self->handle, &width, NULL))
return 0;
rsvg_handle_get_dimensions (self->handle, &data);
return ceil (width);
return data.width;
}
static int
svg_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
SvgPaintable *self = SVG_PAINTABLE (paintable);
double height;
RsvgDimensionData data;
if (!rsvg_handle_get_intrinsic_size_in_pixels (self->handle, NULL, &height))
return 0;
rsvg_handle_get_dimensions (self->handle, &data);
return ceil (height);
return data.height;
}
static void
+5 -11
View File
@@ -1,11 +1,6 @@
/* Text View/Tabs
*
* GtkTextView can position text at fixed positions, using tabs.
* Tabs can specify alignment, and also allow aligning numbers
* on the decimal point.
*
* The example here has three tabs, with left, numeric and right
* alignment.
*/
#include <gtk/gtk.h>
@@ -27,7 +22,7 @@ do_tabs (GtkWidget *do_widget)
gtk_window_set_title (GTK_WINDOW (window), "Tabs");
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_default_size (GTK_WINDOW (window), 330, 130);
gtk_window_set_default_size (GTK_WINDOW (window), 330, 330);
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
@@ -40,18 +35,17 @@ do_tabs (GtkWidget *do_widget)
tabs = pango_tab_array_new (3, TRUE);
pango_tab_array_set_tab (tabs, 0, PANGO_TAB_LEFT, 0);
pango_tab_array_set_tab (tabs, 1, PANGO_TAB_DECIMAL, 150);
pango_tab_array_set_decimal_point (tabs, 1, '.');
pango_tab_array_set_tab (tabs, 2, PANGO_TAB_RIGHT, 290);
pango_tab_array_set_tab (tabs, 1, PANGO_TAB_LEFT, 100);
pango_tab_array_set_tab (tabs, 2, PANGO_TAB_LEFT, 200);
gtk_text_view_set_tabs (GTK_TEXT_VIEW (view), tabs);
pango_tab_array_free (tabs);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_text (buffer, "one\t2.0\tthree\nfour\t5.555\tsix\nseven\t88.88\tnine", -1);
gtk_text_buffer_set_text (buffer, "one\ttwo\tthree\nfour\tfive\tsix\nseven\teight\tnine", -1);
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_window_set_child (GTK_WINDOW (window), sw);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view);
+1 -1
View File
@@ -72,7 +72,7 @@ about_activated (GSimpleAction *action,
glib_micro_version);
g_string_append_printf (s, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
+1 -1
View File
@@ -79,7 +79,7 @@ activate_about (GSimpleAction *action,
glib_micro_version);
g_string_append_printf (s, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
+4 -37
View File
@@ -336,39 +336,12 @@ text_view_query_tooltip_cb (GtkWidget *widget,
}
}
static gboolean
load_bytes (NodeEditorWindow *self,
GBytes *bytes);
static void
load_error (NodeEditorWindow *self,
const char *error_message)
{
PangoLayout *layout;
GtkSnapshot *snapshot;
GskRenderNode *node;
GBytes *bytes;
layout = gtk_widget_create_pango_layout (GTK_WIDGET (self), error_message);
pango_layout_set_width (layout, 300 * PANGO_SCALE);
snapshot = gtk_snapshot_new ();
gtk_snapshot_append_layout (snapshot, layout, &(GdkRGBA) { 0.7, 0.13, 0.13, 1.0 });
node = gtk_snapshot_free_to_node (snapshot);
bytes = gsk_render_node_serialize (node);
load_bytes (self, bytes);
gsk_render_node_unref (node);
g_object_unref (layout);
}
static gboolean
load_bytes (NodeEditorWindow *self,
GBytes *bytes)
{
if (!g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
{
load_error (self, "Invalid UTF-8");
g_bytes_unref (bytes);
return FALSE;
}
@@ -386,16 +359,11 @@ static gboolean
load_file_contents (NodeEditorWindow *self,
GFile *file)
{
GError *error = NULL;
GBytes *bytes;
bytes = g_file_load_bytes (file, NULL, NULL, &error);
bytes = g_file_load_bytes (file, NULL, NULL, NULL);
if (bytes == NULL)
{
load_error (self, error->message);
g_clear_error (&error);
return FALSE;
}
return FALSE;
return load_bytes (self, bytes);
}
@@ -505,18 +473,17 @@ node_editor_window_load (NodeEditorWindow *self,
{
GError *error = NULL;
g_clear_object (&self->file_monitor);
if (!load_file_contents (self, file))
return FALSE;
g_clear_object (&self->file_monitor);
self->file_monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error);
if (error)
{
g_warning ("couldn't monitor file: %s", error->message);
g_error_free (error);
g_clear_object (&self->file_monitor);
}
else
{
+4 -5
View File
@@ -161,10 +161,9 @@
</child>
<child>
<object class="GtkPaned">
<property name="shrink-start-child">false</property>
<property name="shrink-end-child">false</property>
<property name="position">400</property>
<property name="start-child">
<child>
<object class="GtkScrolledWindow">
<property name="hscrollbar-policy">never</property>
<property name="hexpand">1</property>
@@ -185,8 +184,8 @@
</object>
</child>
</object>
</property>
<property name="end-child">
</child>
<child>
<object class="GtkBox">
<child>
<object class="GtkScrolledWindow">
@@ -232,7 +231,7 @@
</object>
</child>
</object>
</property>
</child>
</object>
</child>
</template>
+17 -17
View File
@@ -42,7 +42,7 @@ update_statusbar (void)
const char *print_str;
gtk_statusbar_pop (GTK_STATUSBAR (statusbar), 0);
gtk_text_buffer_get_iter_at_mark (buffer,
&iter,
gtk_text_buffer_get_insert (buffer));
@@ -56,7 +56,7 @@ update_statusbar (void)
GtkPrintOperation *op = active_prints->data;
print_str = gtk_print_operation_get_status_string (op);
}
msg = g_strdup_printf ("%d, %d%s %s",
row, col,
file_changed?" - Modified":"",
@@ -188,10 +188,10 @@ save_file (GFile *save_filename)
"Error saving to file %s:\n%s",
display_name,
error->message);
g_signal_connect (error_dialog, "response", G_CALLBACK (gtk_window_destroy), NULL);
gtk_widget_show (error_dialog);
g_error_free (error);
g_object_unref (info);
}
@@ -229,7 +229,7 @@ begin_print (GtkPrintOperation *operation,
pango_font_description_free (desc);
pango_layout_set_width (print_data->layout, width * PANGO_SCALE);
pango_layout_set_text (print_data->layout, print_data->text, -1);
num_lines = pango_layout_get_line_count (print_data->layout);
@@ -241,7 +241,7 @@ begin_print (GtkPrintOperation *operation,
{
PangoRectangle ink_rect, logical_rect;
double line_height;
layout_line = pango_layout_get_line (print_data->layout, line);
pango_layout_line_get_extents (layout_line, &ink_rect, &logical_rect);
@@ -258,7 +258,7 @@ begin_print (GtkPrintOperation *operation,
page_breaks = g_list_reverse (page_breaks);
gtk_print_operation_set_n_pages (operation, g_list_length (page_breaks) + 1);
print_data->page_breaks = page_breaks;
}
@@ -287,11 +287,11 @@ draw_page (GtkPrintOperation *operation,
end = pango_layout_get_line_count (print_data->layout);
else
end = GPOINTER_TO_INT (pagebreak->data);
cr = gtk_print_context_get_cairo_context (context);
cairo_set_source_rgb (cr, 0, 0, 0);
i = 0;
start_pos = 0;
iter = pango_layout_get_iter (print_data->layout);
@@ -307,12 +307,12 @@ draw_page (GtkPrintOperation *operation,
pango_layout_iter_get_line_extents (iter, NULL, &logical_rect);
baseline = pango_layout_iter_get_baseline (iter);
if (i == start)
start_pos = logical_rect.y / 1024.0;
cairo_move_to (cr, logical_rect.x / 1024.0, baseline / 1024.0 - start_pos);
pango_cairo_show_layout_line (cr, line);
}
i++;
@@ -383,9 +383,9 @@ print_done (GtkPrintOperation *op,
{
GtkWidget *error_dialog;
gtk_print_operation_get_error (op, &error);
error_dialog = gtk_message_dialog_new (GTK_WINDOW (main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
@@ -405,13 +405,13 @@ print_done (GtkPrintOperation *op,
g_free (print_data->text);
g_free (print_data->font);
g_free (print_data);
if (!gtk_print_operation_is_finished (op))
{
g_object_ref (op);
active_prints = g_list_append (active_prints, op);
update_statusbar ();
/* This ref is unref:ed when we get the final state change */
g_signal_connect (op, "status_changed",
G_CALLBACK (status_changed_cb), NULL);
@@ -628,7 +628,7 @@ activate_about (GSimpleAction *action,
glib_micro_version);
g_string_append_printf (sysinfo, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (sysinfo, "\tGTK \t%d.%d.%d\n",
g_string_append_printf (sysinfo, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
+4 -20
View File
@@ -78,21 +78,6 @@ change_theme_state (GSimpleAction *action,
NULL);
}
static void
change_fullscreen (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
GtkWindow *window = user_data;
if (g_variant_get_boolean (state))
gtk_window_fullscreen (window);
else
gtk_window_unfullscreen (window);
g_simple_action_set_state (action, state);
}
static GtkWidget *page_stack;
static void
@@ -298,7 +283,7 @@ activate_about (GSimpleAction *action,
glib_micro_version);
g_string_append_printf (s, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
@@ -399,7 +384,7 @@ print_operation_done (GtkPrintOperation *op,
g_clear_error (&error);
break;
case GTK_PRINT_OPERATION_RESULT_APPLY:
break;
break;
case GTK_PRINT_OPERATION_RESULT_CANCEL:
g_print ("Printing was canceled\n");
break;
@@ -2027,12 +2012,11 @@ activate (GApplication *app)
GMenuModel *model;
static GActionEntry win_entries[] = {
{ "dark", NULL, NULL, "false", change_dark_state },
{ "theme", NULL, "s", "'current'", change_theme_state },
{ "theme", NULL, "s", "'current'", change_theme_state },
{ "transition", NULL, NULL, "true", change_transition_state },
{ "search", activate_search, NULL, NULL, NULL },
{ "delete", activate_delete, NULL, NULL, NULL },
{ "busy", get_busy, NULL, NULL, NULL },
{ "fullscreen", NULL, NULL, "false", change_fullscreen },
{ "background", activate_background, NULL, NULL, NULL },
{ "open", activate_open, NULL, NULL, NULL },
{ "record", activate_record, NULL, NULL, NULL },
@@ -2198,7 +2182,7 @@ activate (GApplication *app)
g_object_set_data (G_OBJECT (window), "searchbar", widget);
widget = (GtkWidget *)gtk_builder_get_object (builder, "infobar");
g_signal_connect (widget, "response", G_CALLBACK (info_bar_response), NULL);
g_signal_connect (widget, "response", G_CALLBACK (info_bar_response), NULL);
g_object_set_data (G_OBJECT (window), "infobar", widget);
dialog = (GtkWidget *)gtk_builder_get_object (builder, "info_dialog");
-4
View File
@@ -6,10 +6,6 @@
<attribute name="label" translatable="yes">Get Busy</attribute>
<attribute name="action">win.busy</attribute>
</item>
<item>
<attribute name="label" translatable="yes">Fullscreen</attribute>
<attribute name="action">win.fullscreen</attribute>
</item>
<submenu>
<attribute name="label" translatable="yes">Style</attribute>
<section>
-1
View File
@@ -3,7 +3,6 @@ version = "@version@"
browse_url = "https://gitlab.gnome.org/GNOME/gtk/"
repository_url = "https://gitlab.gnome.org/GNOME/gtk.git"
website_url = "https://www.gtk.org"
docs_url = "https://docs.gtk.org/gdk4/"
authors = "GTK Development Team"
logo_url = "gtk-logo.svg"
license = "LGPL-2.1-or-later"
-1
View File
@@ -3,7 +3,6 @@ version = "@version@"
browse_url = "https://gitlab.gnome.org/GNOME/gtk/"
repository_url = "https://gitlab.gnome.org/GNOME/gtk.git"
website_url = "https://www.gtk.org"
docs_url = "https://docs.gtk.org/gsk4/"
authors = "GTK Development Team"
logo_url = "gtk-logo.svg"
license = "LGPL-2.1-or-later"
-1
View File
@@ -3,7 +3,6 @@ version = "@version@"
browse_url = "https://gitlab.gnome.org/GNOME/gtk/"
repository_url = "https://gitlab.gnome.org/GNOME/gtk.git"
website_url = "https://www.gtk.org"
docs_url = "https://docs.gtk.org/gtk4/"
authors = "GTK Development Team"
logo_url = "gtk-logo.svg"
license = "LGPL-2.1-or-later"
+2 -2
View File
@@ -410,8 +410,8 @@ have been removed. Update your code accordingly.
Any APIs that deal with global (or root) coordinates have been
removed in GTK 4, since not all backends support them. You should
replace your use of such APIs with surface-relative equivalents.
Examples of such removed APIs are `gdk_window_get_origin()`,
`gdk_window_move()` or `gdk_event_get_root_coords()`.
Examples of this are `gdk_surface_get_origin()`, `gdk_surface_move()`
or `gdk_event_get_root_coords()`.
### Adapt to `GdkKeymap` API changes
+4 -4
View File
@@ -133,7 +133,7 @@ gtk_text_buffer_set_text (buffer, "Hello, this is some text", -1);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider,
"textview {"
" font: 15px serif;"
" font: 15 serif;"
" color: green;"
"}",
-1);
@@ -149,9 +149,9 @@ gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 30);
tag = gtk_text_buffer_create_tag (buffer, "blue_foreground",
"foreground", "blue",
NULL);
gtk_text_buffer_get_iter_at_offset (buffer, &start, 7);
gtk_text_buffer_get_iter_at_offset (buffer, &end, 12);
gtk_text_buffer_apply_tag (buffer, tag, &start, &end);
gtk_text_buffer_get_iter_at_offset (buffer, &amp;start, 7);
gtk_text_buffer_get_iter_at_offset (buffer, &amp;end, 12);
gtk_text_buffer_apply_tag (buffer, tag, &amp;start, &amp;end);
```
The `gtk4-demo` application that comes with
+25 -29
View File
@@ -1438,6 +1438,31 @@ describe_egl_config (EGLDisplay egl_display,
}
#endif
/*<private>
* gdk_display_get_egl_display:
* @self: a display
*
* Retrieves the EGL display connection object for the given GDK display.
*
* This function returns `NULL` if GL is not supported or GDK is using
* a different OpenGL framework than EGL.
*
* Returns: (nullable): the EGL display object
*/
gpointer
gdk_display_get_egl_display (GdkDisplay *self)
{
GdkDisplayPrivate *priv = gdk_display_get_instance_private (self);
g_return_val_if_fail (GDK_IS_DISPLAY (self), NULL);
if (!priv->egl_display &&
!gdk_display_prepare_gl (self, NULL))
return NULL;
return priv->egl_display;
}
gpointer
gdk_display_get_egl_config (GdkDisplay *self)
{
@@ -1764,35 +1789,6 @@ gdk_display_init_egl (GdkDisplay *self,
}
#endif
/*<private>
* gdk_display_get_egl_display:
* @self: a display
*
* Retrieves the EGL display connection object for the given GDK display.
*
* This function returns `NULL` if GL is not supported or GDK is using
* a different OpenGL framework than EGL.
*
* Returns: (nullable): the EGL display object
*/
gpointer
gdk_display_get_egl_display (GdkDisplay *self)
{
GdkDisplayPrivate *priv = gdk_display_get_instance_private (self);
g_return_val_if_fail (GDK_IS_DISPLAY (self), NULL);
#ifdef HAVE_EGL
if (!priv->egl_display &&
!gdk_display_prepare_gl (self, NULL))
return NULL;
return priv->egl_display;
#else
return NULL;
#endif
}
GdkDebugFlags
gdk_display_get_debug_flags (GdkDisplay *display)
{
+44 -1
View File
@@ -28,7 +28,8 @@
* `GdkPixbuf`, or a Cairo surface, or other pixel data.
*
* The ownership of the pixel data is transferred to the `GdkTexture`
* instance; you can only make a copy of it, via [method@Gdk.Texture.download].
* instance; you can only make a copy of it, via [method@Gdk.Texture.download]
* or [method@Gdk.Texture.download_float].
*
* `GdkTexture` is an immutable object: That means you cannot change
* anything about it other than increasing the reference count via
@@ -742,6 +743,48 @@ gdk_texture_download (GdkTexture *texture,
stride);
}
/**
* gdk_texture_download_float:
* @texture: a `GdkTexture`
* @data: (array): pointer to enough memory to be filled with the
* downloaded data of @texture
* @stride: rowstride in elements, will usually be equal to
* gdk_texture_get_width() * 4
*
* Downloads the @texture into local memory in a high dynamic range format.
*
* This may be an expensive operation, as the actual texture data
* may reside on a GPU or on a remote display server and because the data
* may need to be upsampled if it was not already available in this
* format.
*
* You may want to use [method@Gdk.Texture.download] instead if you don't
* need high dynamic range support.
*
* The data format of the downloaded data is equivalent to
* GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, so every downloaded
* pixel requires 16 bytes of memory.
*
* Note that the caller is responsible to provide sufficiently
* aligned memory to access the resulting data directly as floats.
*
* Since: 4.6
*/
void
gdk_texture_download_float (GdkTexture *texture,
float *data,
gsize stride)
{
g_return_if_fail (GDK_IS_TEXTURE (texture));
g_return_if_fail (data != NULL);
g_return_if_fail (stride >= gdk_texture_get_width (texture) * 4);
gdk_texture_do_download (texture,
GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
(guchar *) data,
stride);
}
GdkMemoryFormat
gdk_texture_get_format (GdkTexture *self)
{
-7
View File
@@ -727,13 +727,6 @@ gdk_toplevel_begin_move (GdkToplevel *toplevel,
timestamp);
}
/**
* gdk_toplevel_titlebar_gesture:
* @toplevel: a `GdkToplevel`
* @gesture: a `GdkTitlebarGesture`
*
* Since: 4.4
*/
gboolean
gdk_toplevel_titlebar_gesture (GdkToplevel *toplevel,
GdkTitlebarGesture gesture)
-8
View File
@@ -115,14 +115,6 @@ typedef enum
GDK_TOPLEVEL_STATE_LEFT_RESIZABLE = 1 << 15
} GdkToplevelState;
/**
* GdkTitlebarGesture:
* @GDK_TITLEBAR_GESTURE_DOUBLE_CLICK:
* @GDK_TITLEBAR_GESTURE_RIGHT_CLICK:
* @GDK_TITLEBAR_GESTURE_MIDDLE_CLICK:
*
* Since: 4.4
*/
typedef enum
{
GDK_TITLEBAR_GESTURE_DOUBLE_CLICK = 1,
+2 -5
View File
@@ -3606,10 +3606,6 @@ tablet_tool_handle_proximity_out (void *data,
g_object_unref (tablet->pointer_info.focus);
tablet->pointer_info.focus = NULL;
tablet->pointer_info.button_modifiers &=
~(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK |
GDK_BUTTON4_MASK | GDK_BUTTON5_MASK);
gdk_device_update_tool (tablet->stylus_device, NULL);
g_clear_object (&tablet->pointer_info.cursor);
}
@@ -3625,6 +3621,7 @@ tablet_create_button_event_frame (GdkWaylandTabletData *tablet,
GdkEventType evtype,
guint button)
{
GdkWaylandSeat *seat = GDK_WAYLAND_SEAT (tablet->seat);
GdkEvent *event;
event = gdk_button_event_new (evtype,
@@ -3632,7 +3629,7 @@ tablet_create_button_event_frame (GdkWaylandTabletData *tablet,
tablet->logical_device,
tablet->current_tool->tool,
tablet->pointer_info.time,
device_get_modifiers (tablet->logical_device),
device_get_modifiers (seat->logical_pointer),
button,
tablet->pointer_info.surface_x,
tablet->pointer_info.surface_y,
+33 -41
View File
@@ -38,7 +38,7 @@
#include <dwmapi.h>
#include "gdkwin32langnotification.h"
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
# include <epoxy/egl.h>
#endif
@@ -645,6 +645,14 @@ gdk_win32_display_dispose (GObject *object)
{
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (object);
#ifdef GDK_WIN32_ENABLE_EGL
if (display_win32->egl_disp != EGL_NO_DISPLAY)
{
eglTerminate (display_win32->egl_disp);
display_win32->egl_disp = EGL_NO_DISPLAY;
}
#endif
if (display_win32->hwnd != NULL)
{
if (display_win32->dummy_context_wgl.hglrc != NULL)
@@ -1138,54 +1146,23 @@ gdk_win32_display_get_setting (GdkDisplay *display,
return _gdk_win32_get_setting (name, value);
}
#ifndef EGL_PLATFORM_ANGLE_ANGLE
#define EGL_PLATFORM_ANGLE_ANGLE 0x3202
#endif
static gboolean
gdk_win32_display_init_gl_backend (GdkDisplay *display,
GError **error)
{
gboolean result = FALSE;
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
if (display_win32->dummy_context_wgl.hdc == NULL)
display_win32->dummy_context_wgl.hdc = GetDC (display_win32->hwnd);
/*
* No env vars set, do the regular GL initialization, first WGL and then EGL,
/* No env vars set, do the regular GL initialization, first WGL and then EGL,
* as WGL is the more tried-and-tested configuration.
*/
#ifdef HAVE_EGL
/*
* Disable defaulting to EGL for now, since shaders need to be fixed for
* usage against libANGLE EGL. EGL is used more as a compatibility layer
* on Windows rather than being a native citizen on Windows
*/
if (_gdk_debug_flags & GDK_DEBUG_GL_EGL)
result = gdk_display_init_egl (display,
EGL_PLATFORM_ANGLE_ANGLE,
display_win32->dummy_context_wgl.hdc,
FALSE,
error);
#endif
result = gdk_win32_display_init_wgl (display, error);
#ifdef GDK_WIN32_ENABLE_EGL
if (!result)
{
g_clear_error (error);
result = gdk_win32_display_init_wgl (display, error);
}
#ifdef HAVE_EGL
if (!result)
{
g_clear_error (error);
result = gdk_display_init_egl (display,
EGL_PLATFORM_ANGLE_ANGLE,
display_win32->dummy_context_wgl.hdc,
TRUE,
error);
result = gdk_win32_display_init_egl (display, error);
}
#endif
@@ -1202,12 +1179,13 @@ gdk_win32_display_init_gl (GdkDisplay *display,
if (!gdk_win32_display_init_gl_backend (display, error))
return NULL;
#ifdef GDK_WIN32_ENABLE_EGL
if (display_win32->egl_disp)
gl_context = g_object_new (GDK_TYPE_WIN32_GL_CONTEXT_EGL, "display", display, NULL);
else
#endif
if (display_win32->wgl_pixel_format != 0)
gl_context = g_object_new (GDK_TYPE_WIN32_GL_CONTEXT_WGL, "display", display, NULL);
#ifdef HAVE_EGL
else if (gdk_display_get_egl_display (display))
gl_context = g_object_new (GDK_TYPE_WIN32_GL_CONTEXT_EGL, "display", display, NULL);
#endif
g_return_val_if_fail (gl_context != NULL, NULL);
@@ -1225,9 +1203,23 @@ gdk_win32_display_init_gl (GdkDisplay *display,
gpointer
gdk_win32_display_get_egl_display (GdkDisplay *display)
{
#ifdef GDK_WIN32_ENABLE_EGL
GdkWin32Display *display_win32;
#endif
g_return_val_if_fail (GDK_IS_WIN32_DISPLAY (display), NULL);
return gdk_display_get_egl_display (display);
#ifdef GDK_WIN32_ENABLE_EGL
display_win32 = GDK_WIN32_DISPLAY (display);
if (display_win32->wgl_pixel_format != 0)
return NULL;
return display_win32->egl_disp;
#else
/* no EGL support */
return NULL;
#endif
}
static void
+10 -2
View File
@@ -25,7 +25,7 @@
#include "gdkwin32screen.h"
#include "gdkwin32cursor.h"
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
# include <epoxy/egl.h>
#endif
@@ -135,6 +135,14 @@ struct _GdkWin32Display
int wgl_pixel_format;
guint gl_version;
#ifdef GDK_WIN32_ENABLE_EGL
/* EGL (Angle) Items */
guint egl_version;
EGLDisplay egl_disp;
EGLConfig egl_config;
HDC hdc_egl_temp;
#endif
GListModel *monitors;
guint hasWglARBCreateContext : 1;
@@ -143,7 +151,7 @@ struct _GdkWin32Display
guint hasWglARBPixelFormat : 1;
guint hasWglARBmultisample : 1;
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
guint hasEglKHRCreateContext : 1;
guint hasEglSurfacelessContext : 1;
EGLint egl_min_swap_interval;
+365 -3
View File
@@ -53,6 +53,30 @@ typedef struct _GdkWin32GLContextClass GdkWin32GLContextEGLClass;
G_DEFINE_TYPE (GdkWin32GLContextEGL, gdk_win32_gl_context_egl, GDK_TYPE_WIN32_GL_CONTEXT)
static void
gdk_win32_gl_context_egl_dispose (GObject *gobject)
{
GdkGLContext *context = GDK_GL_CONTEXT (gobject);
GdkWin32GLContextEGL *context_egl = GDK_WIN32_GL_CONTEXT_EGL (gobject);
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (gdk_gl_context_get_display (context));
GdkSurface *surface = gdk_gl_context_get_surface (context);
if (display_win32 != NULL)
{
if (eglGetCurrentContext () == context_egl->egl_context)
eglMakeCurrent(display_win32->egl_disp, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
GDK_NOTE (OPENGL, g_message ("Destroying EGL (ANGLE) context"));
eglDestroyContext (display_win32->egl_disp,
context_egl->egl_context);
context_egl->egl_context = EGL_NO_CONTEXT;
}
G_OBJECT_CLASS (gdk_win32_gl_context_egl_parent_class)->dispose (gobject);
}
static gboolean
is_egl_force_redraw (GdkSurface *surface)
{
@@ -85,7 +109,7 @@ gdk_win32_gl_context_egl_end_frame (GdkDrawContext *draw_context,
GdkGLContext *context = GDK_GL_CONTEXT (draw_context);
GdkWin32GLContextEGL *context_egl = GDK_WIN32_GL_CONTEXT_EGL (context);
GdkSurface *surface = gdk_gl_context_get_surface (context);
GdkDisplay *display = gdk_gl_context_get_display (context);
GdkWin32Display *display_win32 = (GDK_WIN32_DISPLAY (gdk_gl_context_get_display (context)));
cairo_rectangle_int_t whole_window;
EGLSurface egl_surface;
@@ -98,7 +122,7 @@ gdk_win32_gl_context_egl_end_frame (GdkDrawContext *draw_context,
gdk_surface_get_height (surface)
};
egl_surface = gdk_surface_get_egl_surface (surface);
egl_surface = gdk_win32_surface_get_egl_surface (surface, display_win32->egl_config, FALSE);
if (is_egl_force_redraw (surface))
{
@@ -111,7 +135,338 @@ gdk_win32_gl_context_egl_end_frame (GdkDrawContext *draw_context,
reset_egl_force_redraw (surface);
}
eglSwapBuffers (gdk_display_get_egl_display (display), egl_surface);
eglSwapBuffers (display_win32->egl_disp, egl_surface);
}
#ifndef EGL_PLATFORM_ANGLE_ANGLE
#define EGL_PLATFORM_ANGLE_ANGLE 0x3202
#endif
#ifndef EGL_PLATFORM_ANGLE_TYPE_ANGLE
#define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203
#endif
#ifndef EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE
#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208
#endif
static EGLDisplay
gdk_win32_get_egl_display (GdkWin32Display *display)
{
EGLDisplay disp;
if (epoxy_has_egl_extension (NULL, "EGL_EXT_platform_base"))
{
PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = (void *) eglGetProcAddress ("eglGetPlatformDisplayEXT");
if (getPlatformDisplay)
{
EGLint disp_attr[] = {EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE, EGL_NONE};
disp = getPlatformDisplay (EGL_PLATFORM_ANGLE_ANGLE, display->hdc_egl_temp, disp_attr);
if (disp != EGL_NO_DISPLAY)
return disp;
}
}
return eglGetDisplay (display->hdc_egl_temp);
}
#define MAX_EGL_ATTRS 30
static gboolean
find_eglconfig_for_window (GdkWin32Display *display,
EGLConfig *egl_config_out,
EGLint *min_swap_interval_out,
GError **error)
{
EGLint attrs[MAX_EGL_ATTRS];
EGLint count;
EGLConfig *configs, chosen_config;
int i = 0;
EGLDisplay egl_disp = display->egl_disp;
attrs[i++] = EGL_CONFORMANT;
attrs[i++] = EGL_OPENGL_ES2_BIT;
attrs[i++] = EGL_SURFACE_TYPE;
attrs[i++] = EGL_WINDOW_BIT;
attrs[i++] = EGL_COLOR_BUFFER_TYPE;
attrs[i++] = EGL_RGB_BUFFER;
attrs[i++] = EGL_RED_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_GREEN_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_BLUE_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_ALPHA_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_NONE;
g_assert (i < MAX_EGL_ATTRS);
if (!eglChooseConfig (display->egl_disp, attrs, NULL, 0, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
configs = g_new (EGLConfig, count);
if (!eglChooseConfig (display->egl_disp, attrs, configs, count, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
/* Pick first valid configuration i guess? */
chosen_config = configs[0];
if (!eglGetConfigAttrib (display->egl_disp, chosen_config,
EGL_MIN_SWAP_INTERVAL, min_swap_interval_out))
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
"Could not retrieve the minimum swap interval");
g_free (configs);
return FALSE;
}
if (egl_config_out != NULL)
*egl_config_out = chosen_config;
g_free (configs);
return TRUE;
}
gboolean
gdk_win32_display_init_egl (GdkDisplay *display,
GError **error)
{
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
int best_idx = 0;
EGLDisplay egl_disp;
if (!gdk_gl_backend_can_be_used (GDK_GL_EGL, error))
return FALSE;
if (display_win32->egl_disp != EGL_NO_DISPLAY)
return TRUE;
egl_disp = gdk_win32_get_egl_display (display_win32);
if (egl_disp == EGL_NO_DISPLAY)
return FALSE;
if (!eglInitialize (egl_disp, NULL, NULL))
{
eglTerminate (egl_disp);
egl_disp = EGL_NO_DISPLAY;
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("No GL implementation is available"));
return FALSE;
}
display_win32->egl_disp = egl_disp;
display_win32->egl_version = epoxy_egl_version (egl_disp);
eglBindAPI (EGL_OPENGL_ES_API);
display_win32->hasEglSurfacelessContext =
epoxy_has_egl_extension (egl_disp, "EGL_KHR_surfaceless_context");
GDK_NOTE (OPENGL,
g_print ("EGL API version %d.%d found\n"
" - Vendor: %s\n"
" - Checked extensions:\n"
"\t* EGL_KHR_surfaceless_context: %s\n",
display_win32->egl_version / 10,
display_win32->egl_version % 10,
eglQueryString (display_win32->egl_disp, EGL_VENDOR),
display_win32->hasEglSurfacelessContext ? "yes" : "no"));
return find_eglconfig_for_window (display_win32, &display_win32->egl_config,
&display_win32->egl_min_swap_interval, error);
}
#define N_EGL_ATTRS 16
static EGLContext
create_egl_context (EGLDisplay display,
EGLConfig config,
GdkGLContext *share,
int flags,
int major,
int minor,
gboolean *is_legacy)
{
EGLContext ctx;
EGLint context_attribs[N_EGL_ATTRS];
int i = 0;
/* ANGLE does not support the GL_OES_vertex_array_object extension, so we need to use ES3 directly */
context_attribs[i++] = EGL_CONTEXT_CLIENT_VERSION;
context_attribs[i++] = 3;
/* Specify the flags */
context_attribs[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attribs[i++] = flags;
context_attribs[i++] = EGL_NONE;
g_assert (i < N_EGL_ATTRS);
ctx = eglCreateContext (display,
config,
share != NULL ? GDK_WIN32_GL_CONTEXT_EGL (share)->egl_context
: EGL_NO_CONTEXT,
context_attribs);
if (ctx != EGL_NO_CONTEXT)
GDK_NOTE (OPENGL, g_message ("Created EGL context[%p]", ctx));
return ctx;
}
static gboolean
gdk_win32_gl_context_egl_realize (GdkGLContext *context,
GError **error)
{
GdkWin32GLContextEGL *context_egl = GDK_WIN32_GL_CONTEXT_EGL (context);
gboolean debug_bit, compat_bit, legacy_bit;
gboolean use_es = FALSE;
EGLContext egl_context;
EGLContext ctx;
/* request flags and specific versions for core (3.2+) WGL context */
int flags = 0;
int major = 0;
int minor = 0;
GdkSurface *surface = gdk_gl_context_get_surface (context);
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
GdkDisplay *display = gdk_gl_context_get_display (context);
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
GdkGLContext *share = gdk_display_get_gl_context (display);
gdk_gl_context_get_required_version (context, &major, &minor);
debug_bit = gdk_gl_context_get_debug_enabled (context);
compat_bit = gdk_gl_context_get_forward_compatible (context);
/*
* A legacy context cannot be shared with core profile ones, so this means we
* must stick to a legacy context if the shared context is a legacy context
*/
/* if GDK_GL_LEGACY is set, we default to a legacy context */
legacy_bit = GDK_DISPLAY_DEBUG_CHECK (display, GL_LEGACY) ?
TRUE :
share != NULL && gdk_gl_context_is_legacy (share);
use_es = GDK_DISPLAY_DEBUG_CHECK (display, GL_GLES) ||
(share != NULL && gdk_gl_context_get_use_es (share));
if (debug_bit)
flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
if (compat_bit)
flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
GDK_NOTE (OPENGL, g_message ("Creating EGL context version %d.%d (debug:%s, forward:%s, legacy:%s)",
major, minor,
debug_bit ? "yes" : "no",
compat_bit ? "yes" : "no",
legacy_bit ? "yes" : "no"));
ctx = create_egl_context (display_win32->egl_disp,
display_win32->egl_config,
share,
flags,
major,
minor,
&legacy_bit);
if (ctx == EGL_NO_CONTEXT)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("Unable to create a GL context"));
return FALSE;
}
GDK_NOTE (OPENGL, g_print ("Created EGL context[%p]\n", ctx));
context_egl->egl_context = ctx;
/* We are using GLES here */
gdk_gl_context_set_use_es (context, TRUE);
/* Ensure that any other context is created with a legacy bit set */
gdk_gl_context_set_is_legacy (context, legacy_bit);
return TRUE;
}
static gboolean
gdk_win32_gl_context_egl_clear_current (GdkGLContext *context)
{
GdkDisplay *display = gdk_gl_context_get_display (context);
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
if (display_win32->egl_disp != EGL_NO_DISPLAY)
return eglMakeCurrent (display_win32->egl_disp,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT);
else
return TRUE;
}
static gboolean
gdk_win32_gl_context_egl_make_current (GdkGLContext *context,
gboolean surfaceless)
{
GdkWin32GLContextEGL *context_egl = GDK_WIN32_GL_CONTEXT_EGL (context);
GdkDisplay *display = gdk_gl_context_get_display (context);
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
GdkSurface *surface;
gboolean do_frame_sync = FALSE;
EGLSurface egl_surface;
surface = gdk_gl_context_get_surface (context);
if (!surfaceless)
egl_surface = gdk_win32_surface_get_egl_surface (surface, display_win32->egl_config, FALSE);
else
{
if (display_win32->hasEglSurfacelessContext)
egl_surface = EGL_NO_SURFACE;
else
egl_surface = gdk_win32_surface_get_egl_surface (surface, display_win32->egl_config, TRUE);
}
if (!eglMakeCurrent (display_win32->egl_disp,
egl_surface,
egl_surface,
context_egl->egl_context))
return FALSE;
if (display_win32->egl_min_swap_interval == 0)
eglSwapInterval (display_win32->egl_disp, 0);
else
g_debug ("Can't disable GL swap interval");
return TRUE;
}
static void
@@ -129,11 +484,18 @@ gdk_win32_gl_context_egl_class_init (GdkWin32GLContextClass *klass)
{
GdkGLContextClass *context_class = GDK_GL_CONTEXT_CLASS(klass);
GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS(klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
context_class->backend_type = GDK_GL_EGL;
context_class->realize = gdk_win32_gl_context_egl_realize;
context_class->make_current = gdk_win32_gl_context_egl_make_current;
context_class->clear_current = gdk_win32_gl_context_egl_clear_current;
draw_context_class->begin_frame = gdk_win32_gl_context_egl_begin_frame;
draw_context_class->end_frame = gdk_win32_gl_context_egl_end_frame;
gobject_class->dispose = gdk_win32_gl_context_egl_dispose;
}
static void
+3
View File
@@ -226,6 +226,9 @@ gdk_init_dummy_wgl_context (GdkWin32Display *display_win32)
gboolean set_pixel_format_result = FALSE;
int best_idx = 0;
if (display_win32->dummy_context_wgl.hdc == NULL)
display_win32->dummy_context_wgl.hdc = GetDC (display_win32->hwnd);
memset (&pfd, 0, sizeof (PIXELFORMATDESCRIPTOR));
best_idx = get_wgl_pfd (display_win32->dummy_context_wgl.hdc, &pfd, NULL);
+1 -1
View File
@@ -40,7 +40,7 @@
#include <cairo.h>
#include <epoxy/wgl.h>
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
# include <epoxy/egl.h>
#endif
+1 -1
View File
@@ -24,7 +24,7 @@
#include <epoxy/gl.h>
#include <epoxy/wgl.h>
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
# include <epoxy/egl.h>
#endif
+77 -24
View File
@@ -638,7 +638,6 @@ _gdk_win32_display_create_surface (GdkDisplay *display,
return NULL;
}
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);
@@ -686,6 +685,22 @@ gdk_win32_surface_destroy (GdkSurface *window,
gdk_win32_surface_set_transient_for (child, NULL);
}
#ifdef GDK_WIN32_ENABLE_EGL
GdkWin32Display *display = GDK_WIN32_DISPLAY (gdk_surface_get_display (window));
/* Get rid of any EGLSurfaces that we might have created */
if (surface->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (display->egl_disp, surface->egl_surface);
surface->egl_surface = EGL_NO_SURFACE;
}
if (surface->egl_dummy_surface != EGL_NO_SURFACE)
{
eglDestroySurface (display->egl_disp, surface->egl_dummy_surface);
surface->egl_dummy_surface = EGL_NO_SURFACE;
}
#endif
/* Remove ourself from our transient owner */
if (surface->transient_owner != NULL)
{
@@ -694,7 +709,6 @@ gdk_win32_surface_destroy (GdkSurface *window,
if (!foreign_destroy)
{
gdk_surface_set_egl_native_window (window, NULL);
window->destroyed = TRUE;
DestroyWindow (GDK_SURFACE_HWND (window));
}
@@ -2277,87 +2291,95 @@ stash_window (GdkSurface *window,
}
static void
snap_up (GdkSurface *surface)
snap_up (GdkSurface *window)
{
SHORT maxysize;
int x, y;
int width, height;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_FULLUP;
stash_window (surface, impl);
stash_window (window, impl);
maxysize = GetSystemMetrics (SM_CYVIRTUALSCREEN) / impl->surface_scale;
x = y = 0;
width = gdk_surface_get_width (surface);
width = gdk_surface_get_width (window);
y = 0;
height = maxysize;
x = surface->x - impl->shadow.left / impl->surface_scale;
y = y - impl->shadow.top / impl->surface_scale;
x = x - impl->shadow.left;
y = y - impl->shadow.top;
width += impl->shadow_x;
height += impl->shadow_y;
gdk_win32_surface_move_resize (surface, x, y, width, height);
/* XXX: FIXME, AeroSnap snap_up() not really working well,
*
* * The snap_up() puts the window at the top left corner.
* * Without the following call, the height maximizes but we see a spew of
* "GdkToplevelSize: geometry size (x,y) exceeds bounds" warnings
*/
compute_toplevel_size (window, TRUE, &width, &height);
gdk_win32_surface_move_resize (window, x, y, width, height);
}
static void
snap_left (GdkSurface *surface,
snap_left (GdkSurface *window,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (surface, impl);
stash_window (window, impl);
rect.width = rect.width / 2;
rect.x = rect.x - impl->shadow.left / impl->surface_scale;
rect.y = rect.y - impl->shadow.top / impl->surface_scale;
rect.x = rect.x - impl->shadow.left;
rect.y = rect.y - impl->shadow.top;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (surface,
gdk_win32_surface_move_resize (window,
rect.x, rect.y,
rect.width, rect.height);
}
static void
snap_right (GdkSurface *surface,
snap_right (GdkSurface *window,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (surface, impl);
stash_window (window, impl);
rect.width = rect.width / 2;
rect.x += rect.width;
rect.x = rect.x - impl->shadow.left / impl->surface_scale;
rect.y = rect.y - impl->shadow.top / impl->surface_scale;
rect.x = rect.x - impl->shadow.left;
rect.y = rect.y - impl->shadow.top;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (surface,
gdk_win32_surface_move_resize (window,
rect.x, rect.y,
rect.width, rect.height);
}
@@ -2988,7 +3010,6 @@ update_fullup_indicator (GdkSurface *window,
to.height = gdk_surface_get_height (window);
to.y = 0;
to.x = window->x;
to.height = maxysize;
from = context->indicator_target;
@@ -3141,7 +3162,6 @@ start_indicator (GdkSurface *window,
end_size.height = workarea.height;
break;
case GDK_WIN32_AEROSNAP_STATE_FULLUP:
start_size.x = end_size.x = window->x;
end_size.y = 0;
end_size.height = maxysize;
break;
@@ -5012,6 +5032,39 @@ gdk_win32_drag_surface_iface_init (GdkDragSurfaceInterface *iface)
iface->present = gdk_win32_drag_surface_present;
}
#ifdef GDK_WIN32_ENABLE_EGL
EGLSurface
gdk_win32_surface_get_egl_surface (GdkSurface *surface,
EGLConfig config,
gboolean is_dummy)
{
GdkWin32Display *display = GDK_WIN32_DISPLAY (gdk_surface_get_display (surface));
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
if (is_dummy)
{
if (impl->egl_dummy_surface == EGL_NO_SURFACE)
{
EGLint attribs[] = {EGL_WIDTH, 1, EGL_WIDTH, 1, EGL_NONE};
impl->egl_dummy_surface = eglCreatePbufferSurface (display->egl_disp,
config,
attribs);
}
return impl->egl_dummy_surface;
}
else
{
if (impl->egl_surface == EGL_NO_SURFACE)
impl->egl_surface = eglCreateWindowSurface (display->egl_disp,
config,
GDK_SURFACE_HWND (surface),
NULL);
return impl->egl_surface;
}
}
#endif
static void
gdk_win32_surface_get_queued_window_rect (GdkSurface *surface,
@@ -5090,7 +5143,7 @@ _gdk_win32_surface_invalidate_egl_framebuffer (GdkSurface *surface)
* as we need to re-acquire the EGL surfaces that we rendered to upload to Cairo explicitly,
* using gdk_window_invalidate_rect (), when we maximize or restore or use aerosnap
*/
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
if (surface->gl_paint_context != NULL && gdk_gl_context_get_use_es (surface->gl_paint_context))
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
+5 -3
View File
@@ -33,7 +33,7 @@
#include <windows.h>
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
# include <epoxy/egl.h>
#endif
@@ -338,7 +338,9 @@ struct _GdkWin32Surface
RECT configured_rect;
} next_layout;
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
EGLSurface egl_surface;
EGLSurface egl_dummy_surface;
guint egl_force_redraw_all : 1;
#endif
};
@@ -371,7 +373,7 @@ void gdk_win32_surface_move_resize (GdkSurface *window,
RECT
gdk_win32_surface_handle_queued_move_resize (GdkDrawContext *draw_context);
#ifdef HAVE_EGL
#ifdef GDK_WIN32_ENABLE_EGL
EGLSurface gdk_win32_surface_get_egl_surface (GdkSurface *surface,
EGLConfig config,
gboolean is_dummy);
+4 -1
View File
@@ -46,7 +46,10 @@ gdk_win32_public_headers = files([
install_headers(gdk_win32_public_headers, 'gdkwin32.h', subdir: 'gtk-4.0/gdk/win32/')
GDK_WIN32_EGL_CFLAGS = []
if have_egl
GDK_WIN32_EGL_CFLAGS = ['-DGDK_WIN32_ENABLE_EGL']
gdk_win32_sources += ['gdkglcontext-win32-egl.c']
endif
@@ -64,6 +67,6 @@ libgdk_win32 = static_library('gdk-win32',
'-DINSIDE_GDK_WIN32',
'-D_WIN32_WINNT=0x0601',
'-DWINVER=0x0601',
],
] + GDK_WIN32_EGL_CFLAGS,
dependencies: [ gdk_deps, gdk_win32_deps ],
)
+1 -10
View File
@@ -492,18 +492,9 @@ init_randr15 (GdkX11Screen *x11_screen)
if (output_info->crtc)
{
XRRCrtcInfo *crtc;
XRRCrtcInfo *crtc = XRRGetCrtcInfo (x11_screen->xdisplay, resources, output_info->crtc);
int j;
gdk_x11_display_error_trap_push (display);
crtc = XRRGetCrtcInfo (x11_screen->xdisplay, resources,
output_info->crtc);
if (gdk_x11_display_error_trap_pop (display))
{
XRRFreeOutputInfo (output_info);
continue;
}
for (j = 0; j < resources->nmode; j++)
{
XRRModeInfo *xmode = &resources->modes[j];
-4
View File
@@ -269,8 +269,6 @@ collect_reused_child_nodes (GskRenderer *renderer,
case GSK_BLEND_NODE:
case GSK_CROSS_FADE_NODE:
case GSK_BLUR_NODE:
case GSK_FILL_NODE:
case GSK_STROKE_NODE:
default:
@@ -857,8 +855,6 @@ gsk_broadway_renderer_add_node (GskRenderer *renderer,
case GSK_CROSS_FADE_NODE:
case GSK_BLUR_NODE:
case GSK_GL_SHADER_NODE:
case GSK_FILL_NODE:
case GSK_STROKE_NODE:
default:
break; /* Fallback */
}
+9 -20
View File
@@ -28,11 +28,10 @@
#include "gskglcompilerprivate.h"
#include "gskglprogramprivate.h"
#define SHADER_VERSION_GLES "100"
#define SHADER_VERSION_GLES3 "300 es"
#define SHADER_VERSION_GL2_LEGACY "110"
#define SHADER_VERSION_GL3_LEGACY "130"
#define SHADER_VERSION_GL3 "150"
#define SHADER_VERSION_GLES 100
#define SHADER_VERSION_GL2_LEGACY 110
#define SHADER_VERSION_GL3_LEGACY 130
#define SHADER_VERSION_GL3 150
struct _GskGLCompiler
{
@@ -50,7 +49,7 @@ struct _GskGLCompiler
GArray *attrib_locations;
const char *glsl_version;
int glsl_version;
guint gl3 : 1;
guint gles : 1;
@@ -99,7 +98,7 @@ gsk_gl_compiler_class_init (GskGLCompilerClass *klass)
static void
gsk_gl_compiler_init (GskGLCompiler *self)
{
self->glsl_version = "150";
self->glsl_version = 150;
self->attrib_locations = g_array_new (FALSE, FALSE, sizeof (GskGLProgramAttrib));
self->all_preamble = g_bytes_ref (empty_bytes);
self->vertex_preamble = g_bytes_ref (empty_bytes);
@@ -128,18 +127,8 @@ gsk_gl_compiler_new (GskGLDriver *driver,
if (gdk_gl_context_get_use_es (context))
{
int maj, min;
/* for OpenGL/ES 3.0+, use "300 es" as our shader version */
gdk_gl_context_get_version (context, &maj, &min);
if (maj >= 3)
self->glsl_version = SHADER_VERSION_GLES3;
else
{
self->glsl_version = SHADER_VERSION_GLES;
self->gles = TRUE;
}
self->glsl_version = SHADER_VERSION_GLES;
self->gles = TRUE;
}
else if (gdk_gl_context_is_legacy (context))
{
@@ -557,7 +546,7 @@ gsk_gl_compiler_compile (GskGLCompiler *self,
gsk_gl_command_queue_make_current (self->driver->command_queue);
g_snprintf (version, sizeof version, "#version %s\n", self->glsl_version);
g_snprintf (version, sizeof version, "#version %d\n", self->glsl_version);
if (self->debug_shaders)
debug = "#define GSK_DEBUG 1\n";
+15 -11
View File
@@ -161,27 +161,25 @@ gsk_gl_glyph_library_create_surface (GskGLGlyphLibrary *self,
static void
render_glyph (cairo_surface_t *surface,
const cairo_scaled_font_t *scaled_font,
const GskGLGlyphKey *key,
const GskGLGlyphValue *value)
{
cairo_t *cr;
PangoGlyphString glyph_string;
PangoGlyphInfo glyph_info;
cairo_glyph_t glyph;
g_assert (surface != NULL);
g_assert (scaled_font != NULL);
cr = cairo_create (surface);
cairo_set_scaled_font (cr, scaled_font);
cairo_set_source_rgba (cr, 1, 1, 1, 1);
glyph_info.glyph = key->glyph;
glyph_info.geometry.width = value->ink_rect.width * 1024;
glyph_info.geometry.x_offset = 0.25 * key->xshift - value->ink_rect.x * 1024;
glyph_info.geometry.y_offset = 0.25 * key->yshift - value->ink_rect.y * 1024;
glyph.index = key->glyph;
glyph.x = 0.25 * key->xshift - value->ink_rect.x;
glyph.y = 0.25 * key->yshift - value->ink_rect.y;
glyph_string.num_glyphs = 1;
glyph_string.glyphs = &glyph_info;
pango_cairo_show_glyph_string (cr, key->font, &glyph_string);
cairo_show_glyphs (cr, &glyph, 1);
cairo_destroy (cr);
cairo_surface_flush (surface);
@@ -200,6 +198,7 @@ gsk_gl_glyph_library_upload_glyph (GskGLGlyphLibrary *self,
{
GskGLTextureLibrary *tl = (GskGLTextureLibrary *)self;
G_GNUC_UNUSED gint64 start_time = GDK_PROFILER_CURRENT_TIME;
cairo_scaled_font_t *scaled_font;
cairo_surface_t *surface;
guchar *pixel_data;
guchar *free_data = NULL;
@@ -212,6 +211,11 @@ gsk_gl_glyph_library_upload_glyph (GskGLGlyphLibrary *self,
g_assert (key != NULL);
g_assert (value != NULL);
scaled_font = pango_cairo_font_get_scaled_font ((PangoCairoFont *)key->font);
if G_UNLIKELY (scaled_font == NULL ||
cairo_scaled_font_status (scaled_font) != CAIRO_STATUS_SUCCESS)
return;
stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32, width);
gdk_gl_context_push_debug_group_printf (gdk_gl_context_get_current (),
@@ -219,7 +223,7 @@ gsk_gl_glyph_library_upload_glyph (GskGLGlyphLibrary *self,
key->glyph);
surface = gsk_gl_glyph_library_create_surface (self, stride, width, height, uwidth, uheight);
render_glyph (surface, key, value);
render_glyph (surface, scaled_font, key, value);
texture_id = GSK_GL_TEXTURE_ATLAS_ENTRY_TEXTURE (value);
-5
View File
@@ -3767,11 +3767,6 @@ gsk_gl_render_job_visit_node (GskGLRenderJob *job,
gsk_gl_render_job_visit_as_fallback (job, node);
break;
case GSK_FILL_NODE:
case GSK_STROKE_NODE:
gsk_gl_render_job_visit_as_fallback (job, node);
break;
case GSK_NOT_A_RENDER_NODE:
default:
g_assert_not_reached ();
+2 -2
View File
@@ -3,7 +3,7 @@
uniform vec4 u_geometry;
_OUT_ vec2 coord;
_NOPERSPECTIVE_ _OUT_ vec2 coord;
void main() {
gl_Position = u_projection * (u_modelview * vec4(aPosition, 0.0, 1.0));
@@ -29,7 +29,7 @@ uniform highp int u_num_color_stops; // Why? Because it works like this.
uniform vec4 u_geometry;
uniform float u_color_stops[MAX_COLOR_STOPS * 5];
_IN_ vec2 coord;
_NOPERSPECTIVE_ _IN_ vec2 coord;
float get_offset(int index) {
// u_color_stops[5 * index] makes Intel Windows driver crash.
+2 -2
View File
@@ -2,7 +2,7 @@
// linear_gradient.glsl
uniform vec4 u_points;
_OUT_ vec4 info;
_NOPERSPECTIVE_ _OUT_ vec4 info;
void main() {
gl_Position = u_projection * (u_modelview * vec4(aPosition, 0.0, 1.0));
@@ -53,7 +53,7 @@ uniform highp int u_num_color_stops; // Why? Because it works like this.
uniform float u_color_stops[MAX_COLOR_STOPS * 5];
uniform bool u_repeat;
_IN_ vec4 info;
_NOPERSPECTIVE_ _IN_ vec4 info;
float get_offset(int index) {
// u_color_stops[5 * index] makes Intel Windows driver crash.
+2
View File
@@ -5,10 +5,12 @@ precision highp float;
#if defined(GSK_GLES) || defined(GSK_LEGACY)
#define _OUT_ varying
#define _IN_ varying
#define _NOPERSPECTIVE_
#define _GSK_ROUNDED_RECT_UNIFORM_ vec4[3]
#else
#define _OUT_ out
#define _IN_ in
#define _NOPERSPECTIVE_ noperspective
#define _GSK_ROUNDED_RECT_UNIFORM_ GskRoundedRect
#endif
+2 -2
View File
@@ -3,7 +3,7 @@
uniform vec4 u_geometry;
_OUT_ vec2 coord;
_NOPERSPECTIVE_ _OUT_ vec2 coord;
void main() {
gl_Position = u_projection * (u_modelview * vec4(aPosition, 0.0, 1.0));
@@ -32,7 +32,7 @@ uniform bool u_repeat;
uniform vec2 u_range;
uniform float u_color_stops[MAX_COLOR_STOPS * 5];
_IN_ vec2 coord;
_NOPERSPECTIVE_ _IN_ vec2 coord;
float get_offset(int index) {
// u_color_stops[5 * index] makes Intel Windows driver crash.
-2
View File
@@ -22,8 +22,6 @@
#ifndef __GI_SCANNER__
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskPath, gsk_path_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskPathMeasure, gsk_path_measure_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskRenderer, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskRenderNode, gsk_render_node_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskTransform, gsk_transform_unref)
+1 -5
View File
@@ -21,15 +21,11 @@
#define __GSK_H_INSIDE__
#include <gsk/gskenums.h>
#include <gsk/gskglshader.h>
#include <gsk/gskpath.h>
#include <gsk/gskpathbuilder.h>
#include <gsk/gskpathmeasure.h>
#include <gsk/gskrenderer.h>
#include <gsk/gskrendernode.h>
#include <gsk/gskroundedrect.h>
#include <gsk/gskstroke.h>
#include <gsk/gsktransform.h>
#include <gsk/gskglshader.h>
#include <gsk/gskcairorenderer.h>
-80
View File
@@ -1,80 +0,0 @@
#include "config.h"
#include "gskboundingboxprivate.h"
GskBoundingBox *
gsk_bounding_box_init (GskBoundingBox *self,
const graphene_point_t *a,
const graphene_point_t *b)
{
self->min.x = MIN (a->x, b->x);
self->min.y = MIN (a->y, b->y);
self->max.x = MAX (a->x, b->x);
self->max.y = MAX (a->y, b->y);
return self;
}
GskBoundingBox *
gsk_bounding_box_init_copy (GskBoundingBox *self,
const GskBoundingBox *src)
{
self->min = src->min;
self->max = src->max;
return self;
}
GskBoundingBox *
gsk_bounding_box_init_from_rect (GskBoundingBox *self,
const graphene_rect_t *bounds)
{
self->min = bounds->origin;
self->max.x = bounds->origin.x + bounds->size.width;
self->max.y = bounds->origin.y + bounds->size.height;
return self;
}
void
gsk_bounding_box_expand (GskBoundingBox *self,
const graphene_point_t *p)
{
self->min.x = MIN (self->min.x, p->x);
self->min.y = MIN (self->min.y, p->y);
self->max.x = MAX (self->max.x, p->x);
self->max.y = MAX (self->max.y, p->y);
}
graphene_rect_t *
gsk_bounding_box_to_rect (const GskBoundingBox *self,
graphene_rect_t *rect)
{
rect->origin = self->min;
rect->size.width = self->max.x - self->min.x;
rect->size.height = self->max.y - self->min.y;
return rect;
}
gboolean
gsk_bounding_box_contains_point (const GskBoundingBox *self,
const graphene_point_t *p)
{
return self->min.x <= p->x && p->x <= self->max.x &&
self->min.y <= p->y && p->y <= self->max.y;
}
gboolean
gsk_bounding_box_intersection (const GskBoundingBox *a,
const GskBoundingBox *b,
GskBoundingBox *res)
{
graphene_point_t min, max;
min.x = MAX (a->min.x, b->min.x);
min.y = MAX (a->min.y, b->min.y);
max.x = MIN (a->max.x, b->max.x);
max.y = MIN (a->max.y, b->max.y);
if (res)
gsk_bounding_box_init (res, &min, &max);
return min.x <= max.x && min.y <= max.y;
}
-44
View File
@@ -1,44 +0,0 @@
#pragma once
#include <gsk/gsktypes.h>
G_BEGIN_DECLS
typedef struct _GskBoundingBox GskBoundingBox;
struct _GskBoundingBox {
graphene_point_t min;
graphene_point_t max;
};
GDK_AVAILABLE_IN_ALL
GskBoundingBox * gsk_bounding_box_init (GskBoundingBox *self,
const graphene_point_t *a,
const graphene_point_t *b);
GDK_AVAILABLE_IN_ALL
GskBoundingBox * gsk_bounding_box_init_copy (GskBoundingBox *self,
const GskBoundingBox *src);
GDK_AVAILABLE_IN_ALL
GskBoundingBox * gsk_bounding_box_init_from_rect (GskBoundingBox *self,
const graphene_rect_t *bounds);
GDK_AVAILABLE_IN_ALL
void gsk_bounding_box_expand (GskBoundingBox *self,
const graphene_point_t *p);
GDK_AVAILABLE_IN_ALL
graphene_rect_t *gsk_bounding_box_to_rect (const GskBoundingBox *self,
graphene_rect_t *rect);
GDK_AVAILABLE_IN_ALL
gboolean gsk_bounding_box_contains_point (const GskBoundingBox *self,
const graphene_point_t *p);
GDK_AVAILABLE_IN_ALL
gboolean gsk_bounding_box_intersection (const GskBoundingBox *a,
const GskBoundingBox *b,
GskBoundingBox *res);
G_END_DECLS
-2099
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File diff suppressed because it is too large Load Diff
-132
View File
@@ -1,132 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_CONTOUR_PRIVATE_H__
#define __GSK_CONTOUR_PRIVATE_H__
#include <gskpath.h>
#include "gskpathopprivate.h"
G_BEGIN_DECLS
/* A path is flat if it contains no cubic or conic segments.
* A path is closed if all its contours end with a GSK_PATH_CLOSE
* operation.
*/
typedef enum
{
GSK_PATH_FLAT,
GSK_PATH_CLOSED
} GskPathFlags;
typedef struct _GskContour GskContour;
GskContour * gsk_rect_contour_new (const graphene_rect_t *rect);
GskContour * gsk_circle_contour_new (const graphene_point_t *center,
float radius,
float start_angle,
float end_angle);
GskContour * gsk_standard_contour_new (GskPathFlags flags,
const graphene_point_t *points,
gsize n_points,
const gskpathop *ops,
gsize n_ops,
gssize offset);
void gsk_contour_copy (GskContour * dest,
const GskContour *src);
GskContour * gsk_contour_dup (const GskContour *src);
GskContour * gsk_contour_reverse (const GskContour *src);
gsize gsk_contour_get_size (const GskContour *self);
GskPathFlags gsk_contour_get_flags (const GskContour *self);
void gsk_contour_print (const GskContour *self,
GString *string);
gboolean gsk_contour_get_bounds (const GskContour *self,
graphene_rect_t *bounds);
gpointer gsk_contour_init_measure (const GskContour *self,
float tolerance,
float *out_length);
void gsk_contour_free_measure (const GskContour *self,
gpointer data);
gboolean gsk_contour_foreach (const GskContour *self,
float tolerance,
GskPathForeachFunc func,
gpointer user_data);
void gsk_contour_get_start_end (const GskContour *self,
graphene_point_t *start,
graphene_point_t *end);
void gsk_contour_get_point (const GskContour *self,
gpointer measure_data,
float distance,
graphene_point_t *pos,
graphene_vec2_t *tangent);
float gsk_contour_get_curvature (const GskContour *self,
gpointer measure_data,
float distance,
graphene_point_t *center);
gboolean gsk_contour_get_closest_point (const GskContour *self,
gpointer measure_data,
float tolerance,
const graphene_point_t *point,
float threshold,
float *out_distance,
graphene_point_t *out_pos,
float *out_offset,
graphene_vec2_t *out_tangent);
int gsk_contour_get_winding (const GskContour *self,
gpointer measure_data,
const graphene_point_t *point,
gboolean *on_edge);
void gsk_contour_add_segment (const GskContour *self,
GskPathBuilder *builder,
gpointer measure_data,
gboolean emit_move_to,
float start,
float end);
gboolean gsk_contour_get_stroke_bounds (const GskContour *self,
const GskStroke *stroke,
graphene_rect_t *bounds);
void gsk_contour_add_stroke (const GskContour *contour,
GskPathBuilder *builder,
GskStroke *stroke);
void gsk_contour_default_add_stroke (const GskContour *contour,
GskPathBuilder *builder,
GskStroke *stroke);
void gsk_contour_offset (const GskContour *contour,
GskPathBuilder *builder,
float distance,
GskLineJoin line_join,
float miter_limit);
void gsk_contour_default_offset (const GskContour *contour,
GskPathBuilder *builder,
float distance,
GskLineJoin line_join,
float miter_limit);
gboolean gsk_contour_is_convex (const GskContour *contour);
G_END_DECLS
#endif /* __GSK_CONTOUR_PRIVATE_H__ */
-286
View File
@@ -1,286 +0,0 @@
#include "config.h"
#include "gskconvexityprivate.h"
#include "gskcontourprivate.h"
typedef enum
{
GSK_DIR_CHANGE_UNKNOWN,
GSK_DIR_CHANGE_LEFT,
GSK_DIR_CHANGE_RIGHT,
GSK_DIR_CHANGE_STRAIGHT,
GSK_DIR_CHANGE_REVERSE,
GSK_DIR_CHANGE_INVALID,
} GskDirChange;
typedef enum
{
GSK_PATH_DIRECTION_UNKNOWN,
GSK_PATH_DIRECTION_CLOCKWISE,
GSK_PATH_DIRECTION_COUNTERCLOCKWISE,
} GskPathDirection;
typedef struct _GskConvexityChecker GskConvexityChecker;
struct _GskConvexityChecker
{
graphene_point_t first_point;
graphene_vec2_t first_vec;
graphene_point_t last_point;
graphene_vec2_t last_vec;
GskDirChange expected_direction;
GskPathDirection first_direction;
int reversals;
gboolean finite;
GskConvexity convexity;
int xsign;
int ysign;
int dx;
int dy;
};
static float
cross_product (graphene_vec2_t *a,
graphene_vec2_t *b)
{
float fa[2];
float fb[2];
graphene_vec2_to_float (a, fa);
graphene_vec2_to_float (b, fb);
return fa[0] * fb[1] - fa[1] * fb[0];
}
static GskDirChange
direction_change (GskConvexityChecker *c,
graphene_vec2_t *v)
{
float cross = cross_product (&(c->last_vec), v);
if (!finite (cross))
return GSK_DIR_CHANGE_UNKNOWN;
if (cross == 0)
return graphene_vec2_dot (&(c->last_vec), v) < 0
? GSK_DIR_CHANGE_REVERSE
: GSK_DIR_CHANGE_STRAIGHT;
return cross > 0
? GSK_DIR_CHANGE_RIGHT
: GSK_DIR_CHANGE_LEFT;
}
static gboolean
add_vec (GskConvexityChecker *c,
graphene_vec2_t *v)
{
GskDirChange dir;
int sign;
dir = direction_change (c, v);
switch (dir)
{
case GSK_DIR_CHANGE_LEFT:
case GSK_DIR_CHANGE_RIGHT:
if (c->expected_direction == GSK_DIR_CHANGE_INVALID)
{
c->expected_direction = dir;
c->first_direction = (dir == GSK_DIR_CHANGE_RIGHT)
? GSK_PATH_DIRECTION_CLOCKWISE
: GSK_PATH_DIRECTION_COUNTERCLOCKWISE;
}
else if (c->expected_direction != dir)
{
c->first_direction = GSK_PATH_DIRECTION_UNKNOWN;
c->convexity = GSK_CONVEXITY_CONCAVE;
return FALSE;
}
graphene_vec2_init_from_vec2 (&c->last_vec, v);
break;
case GSK_DIR_CHANGE_STRAIGHT:
break;
case GSK_DIR_CHANGE_REVERSE:
graphene_vec2_init_from_vec2 (&c->last_vec, v);
c->reversals++;
if (c->reversals > 2)
c->convexity = GSK_CONVEXITY_CONCAVE;
return c->reversals < 3;
case GSK_DIR_CHANGE_UNKNOWN:
c->finite = FALSE;
return FALSE;
case GSK_DIR_CHANGE_INVALID:
default:
g_assert_not_reached ();
}
if (graphene_vec2_get_x (v) > 0)
sign = 1;
else if (graphene_vec2_get_x (v) < 0)
sign = -1;
else
sign = 0;
if (sign != 0)
{
if (c->xsign != 42)
{
if (c->xsign != sign)
c->dx++;
if (c->dx > 2)
{
c->convexity = GSK_CONVEXITY_CONCAVE;
return FALSE;
}
}
c->xsign = sign;
}
if (graphene_vec2_get_y (v) > 0)
sign = 1;
else if (graphene_vec2_get_y (v) < 0)
sign = -1;
else
sign = 0;
if (sign != 0)
{
if (c->ysign != 42)
{
if (c->ysign != sign)
c->dy++;
if (c->dy > 2)
{
c->convexity = GSK_CONVEXITY_CONCAVE;
return FALSE;
}
}
c->ysign = sign;
}
return TRUE;
}
static void
gsk_convexity_checker_init (GskConvexityChecker *c)
{
c->first_point = GRAPHENE_POINT_INIT(0,0);
c->last_point = GRAPHENE_POINT_INIT(0,0);
graphene_vec2_init (&c->first_vec, 0, 0);
graphene_vec2_init (&c->last_vec, 0, 0);
c->expected_direction = GSK_DIR_CHANGE_INVALID;
c->first_direction = GSK_PATH_DIRECTION_UNKNOWN;
c->reversals = 0;
c->finite = TRUE;
c->convexity = GSK_CONVEXITY_UNKNOWN;
c->xsign = 42;
c->ysign = 42;
c->dx = 0;
c->dy = 0;
}
static void
gsk_convexity_checker_move (GskConvexityChecker *c,
const graphene_point_t *p)
{
c->first_point = c->last_point = *p;
c->expected_direction = GSK_DIR_CHANGE_INVALID;
c->convexity = GSK_CONVEXITY_CONVEX;
}
static gboolean
gsk_convexity_checker_add_point (GskConvexityChecker *c,
const graphene_point_t *p)
{
graphene_vec2_t v;
if (graphene_point_equal (&c->last_point, p))
return TRUE;
graphene_vec2_init (&v,
p->x - c->last_point.x,
p->y - c->last_point.y);
if (graphene_point_equal (&c->first_point, &c->last_point) &&
c->expected_direction == GSK_DIR_CHANGE_INVALID)
{
graphene_vec2_init_from_vec2 (&c->last_vec, &v);
graphene_vec2_init_from_vec2 (&c->first_vec, &v);
}
else if (!add_vec (c, &v))
{
c->convexity = GSK_CONVEXITY_CONCAVE;
return FALSE;
}
c->last_point = *p;
return TRUE;
}
static gboolean
gsk_convexity_checker_close (GskConvexityChecker *c)
{
if (!(gsk_convexity_checker_add_point (c, &c->first_point) &&
add_vec (c, &c->first_vec)))
{
c->convexity = GSK_CONVEXITY_CONCAVE;
return FALSE;
}
return TRUE;
}
static gboolean
convex_cb (GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight,
gpointer user_data)
{
GskConvexityChecker *c = user_data;
switch (op)
{
case GSK_PATH_MOVE:
gsk_convexity_checker_move (c, &pts[0]);
break;
case GSK_PATH_CLOSE:
if (!gsk_convexity_checker_close (c))
return FALSE;
break;
case GSK_PATH_LINE:
if (!gsk_convexity_checker_add_point (c, &pts[1]))
return FALSE;
break;
case GSK_PATH_CURVE:
if (!gsk_convexity_checker_add_point (c, &pts[1]) ||
!gsk_convexity_checker_add_point (c, &pts[2]) ||
!gsk_convexity_checker_add_point (c, &pts[3]))
return FALSE;
break;
case GSK_PATH_CONIC:
if (!gsk_convexity_checker_add_point (c, &pts[1]) ||
!gsk_convexity_checker_add_point (c, &pts[3]))
return FALSE;
break;
default:
g_assert_not_reached ();
}
return TRUE;
}
GskConvexity
gsk_contour_compute_convexity (const GskContour *contour)
{
GskConvexityChecker c;
gsk_convexity_checker_init (&c);
gsk_contour_foreach (contour, 0.001, convex_cb, &c);
g_assert (c.convexity != GSK_CONVEXITY_UNKNOWN);
return c.convexity;
}
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#pragma once
#include "gskcontourprivate.h"
typedef enum
{
GSK_CONVEXITY_UNKNOWN,
GSK_CONVEXITY_CONVEX,
GSK_CONVEXITY_CONCAVE,
} GskConvexity;
GskConvexity gsk_contour_compute_convexity (const GskContour *contour);
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-621
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/*
* Copyright © 2020 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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/>.
*
* Authors: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include "gskcurveprivate.h"
static inline gboolean
acceptable (float t)
{
return 0 - FLT_EPSILON <= t && t <= 1 + FLT_EPSILON;
}
static int
line_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n)
{
const graphene_point_t *pts1 = curve1->line.points;
const graphene_point_t *pts2 = curve2->line.points;
float a1 = pts1[0].x - pts1[1].x;
float b1 = pts1[0].y - pts1[1].y;
float a2 = pts2[0].x - pts2[1].x;
float b2 = pts2[0].y - pts2[1].y;
float det = a1 * b2 - b1 * a2;
if (fabs(det) > 0.01)
{
float tt = ((pts1[0].x - pts2[0].x) * b2 - (pts1[0].y - pts2[0].y) * a2) / det;
float ss = - ((pts1[0].y - pts2[0].y) * a1 - (pts1[0].x - pts2[0].x) * b1) / det;
if (acceptable (tt) && acceptable (ss))
{
p[0].x = pts1[0].x + tt * (pts1[1].x - pts1[0].x);
p[0].y = pts1[0].y + tt * (pts1[1].y - pts1[0].y);
t1[0] = tt;
t2[0] = ss;
return 1;
}
}
else /* parallel lines */
{
float r = a1 * (pts1[1].y - pts2[0].y) - (pts1[1].x - pts2[0].x) * b1;
float dist = (r * r) / (a1 * a1 + b1 * b1);
float t, s, tt, ss;
if (dist > 0.01)
return 0;
if (pts1[1].x != pts1[0].x)
{
t = (pts2[0].x - pts1[0].x) / (pts1[1].x - pts1[0].x);
s = (pts2[1].x - pts1[0].x) / (pts1[1].x - pts1[0].x);
}
else
{
t = (pts2[0].y - pts1[0].y) / (pts1[1].y - pts1[0].y);
s = (pts2[1].y - pts1[0].y) / (pts1[1].y - pts1[0].y);
}
if ((t < 0 && s < 0) || (t > 1 && s > 1))
return 0;
if (acceptable (t))
{
t1[0] = t;
t2[0] = 0;
p[0] = pts2[0];
}
else if (t < 0)
{
if (pts2[1].x != pts2[0].x)
tt = (pts1[0].x - pts2[0].x) / (pts2[1].x - pts2[0].x);
else
tt = (pts1[0].y - pts2[0].y) / (pts2[1].y - pts2[0].y);
t1[0] = 0;
t2[0] = tt;
p[0] = pts1[0];
}
else
{
if (pts2[1].x != pts2[0].x)
tt = (pts1[1].x - pts2[0].x) / (pts2[1].x - pts2[0].x);
else
tt = (pts1[1].y - pts2[0].y) / (pts2[1].y - pts2[0].y);
t1[0] = 1;
t2[0] = tt;
p[0] = pts1[1];
}
if (acceptable (s))
{
if (t2[0] == 1)
return 1;
t1[1] = s;
t2[1] = 1;
p[1] = pts2[1];
}
else if (s < 0)
{
if (t1[0] == 0)
return 1;
if (pts2[1].x != pts2[0].x)
ss = (pts1[0].x - pts2[0].x) / (pts2[1].x - pts2[0].x);
else
ss = (pts1[0].y - pts2[0].y) / (pts2[1].y - pts2[0].y);
t1[1] = 0;
t2[1] = ss;
p[1] = pts1[0];
}
else
{
if (t1[0] == 1)
return 1;
if (pts2[1].x != pts2[0].x)
ss = (pts1[1].x - pts2[0].x) / (pts2[1].x - pts2[0].x);
else
ss = (pts1[1].y - pts2[0].y) / (pts2[1].y - pts2[0].y);
t1[1] = 1;
t2[1] = ss;
p[1] = pts1[1];
}
return 2;
}
return 0;
}
static void
get_tangent (const graphene_point_t *p0,
const graphene_point_t *p1,
graphene_vec2_t *t)
{
graphene_vec2_init (t, p1->x - p0->x, p1->y - p0->y);
graphene_vec2_normalize (t, t);
}
static void
align_points (const graphene_point_t *p,
const graphene_point_t *a,
const graphene_point_t *b,
graphene_point_t *q,
int n)
{
graphene_vec2_t n1;
float angle;
float s, c;
float dist;
get_tangent (a, b, &n1);
angle = - atan2 (graphene_vec2_get_y (&n1), graphene_vec2_get_x (&n1));
sincosf (angle, &s, &c);
dist = sqrtf ((a->x - b->x)*(a->x - b->x) + (a->y - b->y)*(a->y - b->y));
for (int i = 0; i < n; i++)
{
q[i].x = ((p[i].x - a->x) * c - (p[i].y - a->y) * s) / dist;
q[i].y = ((p[i].x - a->x) * s + (p[i].y - a->y) * c) / dist;
}
}
static void
find_point_on_line (const graphene_point_t *p1,
const graphene_point_t *p2,
const graphene_point_t *q,
float *t)
{
if (p2->x != p1->x)
*t = (q->x - p1->x) / (p2->x - p1->x);
else
*t = (q->y - p1->y) / (p2->y - p1->y);
}
static float
cuberoot (float v)
{
if (v < 0)
return -pow (-v, 1.f / 3);
return pow (v, 1.f / 3);
}
/* Solve P = 0 where P is
* P = (1-t)^3*pa + 3*t*(1-t)^2*pb + 3*t^2*(1-t)*pc + t^3*pd
*/
static int
get_cubic_roots (float pa, float pb, float pc, float pd, float roots[3])
{
float a, b, c, d;
float q, q2;
float p, p3;
float discriminant;
float u1, v1, sd;
int n_roots = 0;
d = -pa + 3*pb - 3*pc + pd;
a = 3*pa - 6*pb + 3*pc;
b = -3*pa + 3*pb;
c = pa;
if (fabs (d) < 0.0001)
{
if (fabs (a) < 0.0001)
{
if (fabs (b) < 0.0001)
return 0;
if (acceptable (-c / b))
{
roots[0] = -c / b;
return 1;
}
return 0;
}
q = sqrt (b*b - 4*a*c);
roots[n_roots] = (-b + q) / (2 * a);
if (acceptable (roots[n_roots]))
n_roots++;
roots[n_roots] = (-b - q) / (2 * a);
if (acceptable (roots[n_roots]))
n_roots++;
return n_roots;
}
a /= d;
b /= d;
c /= d;
p = (3*b - a*a)/3;
p3 = p/3;
q = (2*a*a*a - 9*a*b + 27*c)/27;
q2 = q/2;
discriminant = q2*q2 + p3*p3*p3;
if (discriminant < 0)
{
float mp3 = -p/3;
float mp33 = mp3*mp3*mp3;
float r = sqrt (mp33);
float t = -q / (2*r);
float cosphi = t < -1 ? -1 : (t > 1 ? 1 : t);
float phi = acos (cosphi);
float crtr = cuberoot (r);
float t1 = 2*crtr;
roots[n_roots] = t1 * cos (phi/3) - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
roots[n_roots] = t1 * cos ((phi + 2*M_PI) / 3) - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
roots[n_roots] = t1 * cos ((phi + 4*M_PI) / 3) - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
return n_roots;
}
if (discriminant == 0)
{
u1 = q2 < 0 ? cuberoot (-q2) : -cuberoot (q2);
roots[n_roots] = 2*u1 - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
roots[n_roots] = -u1 - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
return n_roots;
}
sd = sqrt (discriminant);
u1 = cuberoot (sd - q2);
v1 = cuberoot (sd + q2);
roots[n_roots] = u1 - v1 - a/3;
if (acceptable (roots[n_roots]))
n_roots++;
return n_roots;
}
static int
line_curve_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n)
{
const graphene_point_t *a = &curve1->line.points[0];
const graphene_point_t *b = &curve1->line.points[1];
graphene_point_t pts[4];
float t[3];
int m, i, j;
/* Rotate things to place curve1 on the x axis,
* then solve curve2 for y == 0.
*/
align_points (curve2->curve.points, a, b, pts, 4);
m = get_cubic_roots (pts[0].y, pts[1].y, pts[2].y, pts[3].y, t);
j = 0;
for (i = 0; i < m; i++)
{
t2[j] = t[i];
gsk_curve_get_point (curve2, t2[j], &p[j]);
find_point_on_line (a, b, &p[j], &t1[j]);
if (acceptable (t1[j]))
j++;
if (j == n)
break;
}
return j;
}
static void
curve_intersect_recurse (const GskCurve *curve1,
const GskCurve *curve2,
float t1l,
float t1r,
float t2l,
float t2r,
float *t1,
float *t2,
graphene_point_t *p,
int n,
int *pos,
float tolerance)
{
GskCurve p11, p12, p21, p22;
GskBoundingBox b1, b2;
float d1, d2;
if (*pos == n)
return;
gsk_curve_get_tight_bounds (curve1, &b1);
gsk_curve_get_tight_bounds (curve2, &b2);
if (!gsk_bounding_box_intersection (&b1, &b2, NULL))
return;
d1 = (t1r - t1l) / 2;
d2 = (t2r - t2l) / 2;
if (b1.max.x - b1.min.x < tolerance && b1.max.y - b1.min.y < tolerance &&
b2.max.x - b2.min.x < tolerance && b2.max.y - b2.min.y < tolerance)
{
graphene_point_t c;
t1[*pos] = t1l + d1;
t2[*pos] = t2l + d2;
gsk_curve_get_point (curve1, 0.5, &c);
for (int i = 0; i < *pos; i++)
{
if (graphene_point_near (&c, &p[i], 0.1))
return;
}
p[*pos] = c;
(*pos)++;
return;
}
gsk_curve_split (curve1, 0.5, &p11, &p12);
gsk_curve_split (curve2, 0.5, &p21, &p22);
curve_intersect_recurse (&p11, &p21, t1l, t1l + d1, t2l, t2l + d2, t1, t2, p, n, pos, tolerance);
curve_intersect_recurse (&p11, &p22, t1l, t1l + d1, t2l + d2, t2r, t1, t2, p, n, pos, tolerance);
curve_intersect_recurse (&p12, &p21, t1l + d1, t1r, t2l, t2l + d2, t1, t2, p, n, pos, tolerance);
curve_intersect_recurse (&p12, &p22, t1l + d1, t1r, t2l + d2, t2r, t1, t2, p, n, pos, tolerance);
}
static int
curve_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n,
float tolerance)
{
int pos = 0;
curve_intersect_recurse (curve1, curve2, 0, 1, 0, 1, t1, t2, p, n, &pos, tolerance);
return pos;
}
static void
get_bounds (const GskCurve *curve,
float tl,
float tr,
GskBoundingBox *bounds)
{
GskCurve c;
gsk_curve_segment (curve, tl, tr, &c);
gsk_curve_get_tight_bounds (&c, bounds);
}
static void
general_intersect_recurse (const GskCurve *curve1,
const GskCurve *curve2,
float t1l,
float t1r,
float t2l,
float t2r,
float *t1,
float *t2,
graphene_point_t *p,
int n,
int *pos,
float tolerance)
{
GskBoundingBox b1, b2;
float d1, d2;
if (*pos == n)
return;
get_bounds (curve1, t1l, t1r, &b1);
get_bounds (curve2, t2l, t2r, &b2);
if (!gsk_bounding_box_intersection (&b1, &b2, NULL))
return;
d1 = (t1r - t1l) / 2;
d2 = (t2r - t2l) / 2;
if (b1.max.x - b1.min.x < tolerance && b1.max.y - b1.min.y < tolerance &&
b2.max.x - b2.min.x < tolerance && b2.max.y - b2.min.y < tolerance)
{
graphene_point_t c;
t1[*pos] = t1l + d1;
t2[*pos] = t2l + d2;
gsk_curve_get_point (curve1, t1[*pos], &c);
for (int i = 0; i < *pos; i++)
{
if (graphene_point_near (&c, &p[i], tolerance))
return;
}
p[*pos] = c;
(*pos)++;
return;
}
/* Note that in the conic case, we cannot just split the curves and
* pass the two halves down, since splitting changes the parametrization,
* and we need the t's to be valid parameters wrt to the original curve.
*
* So, instead, we determine the bounding boxes above by always starting
* from the original curve. That is a bit less efficient, but also works
* for conics.
*/
general_intersect_recurse (curve1, curve2, t1l, t1l + d1, t2l, t2l + d2, t1, t2, p, n, pos, tolerance);
general_intersect_recurse (curve1, curve2, t1l, t1l + d1, t2l + d2, t2r, t1, t2, p, n, pos, tolerance);
general_intersect_recurse (curve1, curve2, t1l + d1, t1r, t2l, t2l + d2, t1, t2, p, n, pos, tolerance);
general_intersect_recurse (curve1, curve2, t1l + d1, t1r, t2l + d2, t2r, t1, t2, p, n, pos, tolerance);
}
static int
general_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n,
float tolerance)
{
int pos = 0;
general_intersect_recurse (curve1, curve2, 0, 1, 0, 1, t1, t2, p, n, &pos, tolerance);
return pos;
}
static int
curve_self_intersect (const GskCurve *curve,
float *t1,
float *t2,
graphene_point_t *p,
int n)
{
float tt[3], ss[3], s;
graphene_point_t pp[3];
int m;
GskCurve cs, ce;
if (curve->op != GSK_PATH_CURVE)
return 0;
s = 0.5;
m = gsk_curve_get_curvature_points (curve, tt);
for (int i = 0; i < m; i++)
{
if (gsk_curve_get_curvature (curve, tt[i], NULL) == 0)
{
s = tt[i];
break;
}
}
gsk_curve_split (curve, s, &cs, &ce);
m = curve_intersect (&cs, &ce, tt, ss, pp, 3, 0.001);
if (m > 1)
{
/* One of the (at most 2) intersections we found
* must be the common point where we split the curve.
* It will have a t value of 1 and an s value of 0.
*/
if (fabs (tt[0] - 1) > 1e-3)
{
t1[0] = t2[0] = tt[0] * s;
p[0] = pp[0];
}
else if (fabs (tt[1] - 1) > 1e-3)
{
t1[0] = t2[0] = tt[1] * s;
p[0] = pp[1];
}
if (fabs (ss[0]) > 1e-3)
{
t1[1] = t2[1] = s + ss[0] * (1 - s);
p[1] = pp[0];
}
else if (fabs (ss[1]) > 1e-3)
{
t1[1] = t2[1] = s + ss[1] * (1 - s);
p[1] = pp[1];
}
return 2;
}
return 0;
}
/* Place intersections between the curves in p, and their Bezier positions
* in t1 and t2, up to n. Return the number of intersections found.
*
* Note that two cubic Beziers can have up to 9 intersections.
*/
int
gsk_curve_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n)
{
GskPathOperation op1 = curve1->op;
GskPathOperation op2 = curve2->op;
if (op1 == GSK_PATH_CLOSE)
op1 = GSK_PATH_LINE;
if (op2 == GSK_PATH_CLOSE)
op2 = GSK_PATH_LINE;
if (memcmp (curve1, curve2, sizeof (GskCurve)) == 0)
return curve_self_intersect (curve1, t1, t2, p, n);
/* We special-case line-line and line-curve intersections,
* since we can solve them directly.
* Everything else is done via bisection.
*/
if (op1 == GSK_PATH_LINE && op2 == GSK_PATH_LINE)
return line_intersect (curve1, curve2, t1, t2, p, n);
else if (op1 == GSK_PATH_LINE && op2 == GSK_PATH_CURVE)
return line_curve_intersect (curve1, curve2, t1, t2, p, n);
else if (op1 == GSK_PATH_CURVE && op2 == GSK_PATH_LINE)
return line_curve_intersect (curve2, curve1, t2, t1, p, n);
else if (op1 == GSK_PATH_CURVE && op2 == GSK_PATH_CURVE)
return curve_intersect (curve1, curve2, t1, t2, p, n, 0.001);
else
return general_intersect (curve1, curve2, t1, t2, p, n, 0.001);
}
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/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_CURVE_PRIVATE_H__
#define __GSK_CURVE_PRIVATE_H__
#include "gskpathopprivate.h"
#include "gskboundingboxprivate.h"
G_BEGIN_DECLS
typedef gpointer gskpathop;
typedef union _GskCurve GskCurve;
typedef struct _GskLineCurve GskLineCurve;
typedef struct _GskCurveCurve GskCurveCurve;
typedef struct _GskConicCurve GskConicCurve;
struct _GskLineCurve
{
GskPathOperation op;
gboolean padding;
graphene_point_t points[2];
};
struct _GskCurveCurve
{
GskPathOperation op;
gboolean has_coefficients;
graphene_point_t points[4];
graphene_point_t coeffs[4];
};
struct _GskConicCurve
{
GskPathOperation op;
gboolean has_coefficients;
/* points[0], points[1], points[3] are the control points,
* points[2].x is the weight
*/
graphene_point_t points[4];
graphene_point_t num[3];
graphene_point_t denom[3];
};
union _GskCurve
{
GskPathOperation op;
GskLineCurve line;
GskCurveCurve curve;
GskConicCurve conic;
};
typedef gboolean (* GskCurveAddLineFunc) (const graphene_point_t *from,
const graphene_point_t *to,
float from_progress,
float to_progress,
gpointer user_data);
typedef gboolean (* GskCurveAddCurveFunc) (const graphene_point_t points[4],
gpointer user_data);
void gsk_curve_init (GskCurve *curve,
gskpathop op);
void gsk_curve_init_foreach (GskCurve *curve,
GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight);
void gsk_curve_get_point (const GskCurve *curve,
float progress,
graphene_point_t *pos);
void gsk_curve_get_tangent (const GskCurve *curve,
float progress,
graphene_vec2_t *tangent);
void gsk_curve_get_normal (const GskCurve *curve,
float progress,
graphene_vec2_t *normal);
void gsk_curve_split (const GskCurve *curve,
float progress,
GskCurve *start,
GskCurve *end);
void gsk_curve_segment (const GskCurve *curve,
float start,
float end,
GskCurve *segment);
gboolean gsk_curve_decompose (const GskCurve *curve,
float tolerance,
GskCurveAddLineFunc add_line_func,
gpointer user_data);
gboolean gsk_curve_decompose_curve (const GskCurve *curve,
float tolerance,
GskCurveAddCurveFunc add_curve_func,
gpointer user_data);
gskpathop gsk_curve_pathop (const GskCurve *curve);
#define gsk_curve_builder_to(curve, builder) gsk_path_builder_pathop_to ((builder), gsk_curve_pathop (curve))
const graphene_point_t *gsk_curve_get_start_point (const GskCurve *curve);
const graphene_point_t *gsk_curve_get_end_point (const GskCurve *curve);
void gsk_curve_get_start_tangent (const GskCurve *curve,
graphene_vec2_t *tangent);
void gsk_curve_get_end_tangent (const GskCurve *curve,
graphene_vec2_t *tangent);
void gsk_curve_get_bounds (const GskCurve *curve,
GskBoundingBox *bounds);
void gsk_curve_get_tight_bounds (const GskCurve *curve,
GskBoundingBox *bounds);
int gsk_curve_intersect (const GskCurve *curve1,
const GskCurve *curve2,
float *t1,
float *t2,
graphene_point_t *p,
int n);
void gsk_curve_offset (const GskCurve *curve,
float distance,
GskCurve *offset_curve);
void gsk_curve_reverse (const GskCurve *curve,
GskCurve *reverse);
float gsk_curve_get_curvature (const GskCurve *curve,
float t,
graphene_point_t *center);
int gsk_curve_get_curvature_points (const GskCurve *curve,
float t[3]);
int gsk_curve_get_cusps (const GskCurve *curve,
float t[2]);
void gsk_curve_print (const GskCurve *curve);
G_END_DECLS
#endif /* __GSK_CURVE_PRIVATE_H__ */
-1
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@@ -10,7 +10,6 @@ static const GdkDebugKey gsk_debug_keys[] = {
{ "surface", GSK_DEBUG_SURFACE, "Information about surfaces" },
{ "fallback", GSK_DEBUG_FALLBACK, "Information about fallbacks" },
{ "glyphcache", GSK_DEBUG_GLYPH_CACHE, "Information about glyph caching" },
{ "paths", GSK_DEBUG_PATHS, "Information about path processing" },
{ "geometry", GSK_DEBUG_GEOMETRY, "Show borders (when using cairo)" },
{ "full-redraw", GSK_DEBUG_FULL_REDRAW, "Force full redraws" },
{ "sync", GSK_DEBUG_SYNC, "Sync after each frame" },
-1
View File
@@ -14,7 +14,6 @@ typedef enum {
GSK_DEBUG_VULKAN = 1 << 5,
GSK_DEBUG_FALLBACK = 1 << 6,
GSK_DEBUG_GLYPH_CACHE = 1 << 7,
GSK_DEBUG_PATHS = 1 << 8,
/* flags below may affect behavior */
GSK_DEBUG_GEOMETRY = 1 << 9,
GSK_DEBUG_FULL_REDRAW = 1 << 10,
+3 -105
View File
@@ -1,5 +1,5 @@
/* GSK - The GTK Scene Kit
* Copyright 2016 Endless
* Copyright 2016 Endless
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -50,7 +50,7 @@
* @GSK_BLUR_NODE: A node that applies a blur
* @GSK_DEBUG_NODE: Debug information that does not affect the rendering
* @GSK_GL_SHADER_NODE: A node that uses OpenGL fragment shaders to render
* The type of a node determines what the node is rendering.
*/
typedef enum {
@@ -73,8 +73,6 @@ typedef enum {
GSK_REPEAT_NODE,
GSK_CLIP_NODE,
GSK_ROUNDED_CLIP_NODE,
GSK_FILL_NODE,
GSK_STROKE_NODE,
GSK_SHADOW_NODE,
GSK_BLEND_NODE,
GSK_CROSS_FADE_NODE,
@@ -169,107 +167,6 @@ typedef enum {
GSK_CORNER_BOTTOM_LEFT
} GskCorner;
/**
* GskFillRule:
* @GSK_FILL_RULE_WINDING: If the path crosses the ray from
* left-to-right, counts +1. If the path crosses the ray
* from right to left, counts -1. (Left and right are determined
* from the perspective of looking along the ray from the starting
* point.) If the total count is non-zero, the point will be filled.
* @GSK_FILL_RULE_EVEN_ODD: Counts the total number of
* intersections, without regard to the orientation of the contour. If
* the total number of intersections is odd, the point will be
* filled.
*
* #GskFillRule is used to select how paths are filled, for example in
* gsk_fill_node_new(). Whether or not a point is included in the fill is
* determined by taking a ray from that point to infinity and looking
* at intersections with the path. The ray can be in any direction,
* as long as it doesn't pass through the end point of a segment
* or have a tricky intersection such as intersecting tangent to the path.
* (Note that filling is not actually implemented in this way. This
* is just a description of the rule that is applied.)
*
* New entries may be added in future versions.
**/
typedef enum {
GSK_FILL_RULE_WINDING,
GSK_FILL_RULE_EVEN_ODD
} GskFillRule;
/**
* GskLineCap:
* @GSK_LINE_CAP_BUTT: Start and stop the line exactly at the start
* and end point
* @GSK_LINE_CAP_ROUND: Use a round ending, the center of the circle
* is the start or end point.
* @GSK_LINE_CAP_SQUARE: use squared ending, the center of the square
* is the start or end point.
*
* Specifies how to render the start and end points of contours or
* dashes when stroking.
*
* The default line cap style is @GSK_LINE_CAP_BUTT.
*/
typedef enum {
GSK_LINE_CAP_BUTT,
GSK_LINE_CAP_ROUND,
GSK_LINE_CAP_SQUARE
} GskLineCap;
/**
* GskLineJoin:
* @GSK_LINE_JOIN_MITER: Use a sharp, angled corner
* @GSK_LINE_JOIN_MITER_CLIP: Use a sharp, angled corner, at a distance
* @GSK_LINE_JOIN_ROUND: Use a round join, the center of the circle is
* the joint point
* @GSK_LINE_JOIN_BEVEL: use a cut-off join, the join is cut off at half
* the line width from the joint point
* @GSK_LINE_JOIN_ARCS: Use a sharp angled corner made from circles
*
* Specifies how to render the junction of two lines when stroking.
*
* See [method@Gsk.Stroke.set_miter_limit] for details on the difference
* between @GSK_LINE_JOIN_MITER and @GSK_LINE_JOIN_MITER_CLIP.
*
* The default line join style is @GSK_LINE_JOIN_MITER.
**/
typedef enum {
GSK_LINE_JOIN_MITER,
GSK_LINE_JOIN_MITER_CLIP,
GSK_LINE_JOIN_ROUND,
GSK_LINE_JOIN_BEVEL,
GSK_LINE_JOIN_ARCS
} GskLineJoin;
/**
* GskPathOperation:
* @GSK_PATH_MOVE: A move-to operation, with 1 point describing the
* target point.
* @GSK_PATH_LINE: A line-to operation, with 2 points describing the
* start and end point of a straight line.
* @GSK_PATH_CLOSE: A close operation ending the current contour with
* a line back to the starting point. Two points describe the start
* and end of the line.
* @GSK_PATH_CURVE: A curve-to operation describing a cubic Bézier curve
* with 4 points describing the start point, the two control points
* and the end point of the curve.
* @GSK_PATH_CONIC: A weighted quadratic Bézier curve with 3 points
* describing the start point, control point and end point of the
* curve. A weight for the curve will be passed, too.
*
* Path operations can be used to approximate a #GskPath.
*
* More values may be added in the future.
**/
typedef enum {
GSK_PATH_MOVE,
GSK_PATH_CLOSE,
GSK_PATH_LINE,
GSK_PATH_CURVE,
GSK_PATH_CONIC,
} GskPathOperation;
/**
* GskSerializationError:
* @GSK_SERIALIZATION_UNSUPPORTED_FORMAT: The format can not be identified
@@ -354,4 +251,5 @@ typedef enum
GSK_GL_UNIFORM_TYPE_VEC4,
} GskGLUniformType;
#endif /* __GSK_TYPES_H__ */
-1516
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-154
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@@ -1,154 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATH_H__
#define __GSK_PATH_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gsktypes.h>
G_BEGIN_DECLS
/**
* GskPathForeachFlags:
* @GSK_PATH_FOREACH_ALLOW_CURVE: Allow emission of `GSK_PATH_CURVE` operations.
* @GSK_PATH_FOREACH_ALLOW_CONIC: Allow emission of `GSK_PATH_CONIC` operations.
*
* Flags that can be passed to [method@Gsk.Path.foreach] to enable additional
* features.
*
* By default, [method@Gsk.Path.foreach] will only emit a path with all
* operations flattened to straight lines to allow for maximum compatibility.
* The only operations emitted will be `GSK_PATH_MOVE`, `GSK_PATH_LINE` and
* `GSK_PATH_CLOSE`.
*/
typedef enum
{
GSK_PATH_FOREACH_ALLOW_CURVE = (1 << 0),
GSK_PATH_FOREACH_ALLOW_CONIC = (1 << 1)
} GskPathForeachFlags;
/**
* GskPathForeachFunc:
* @op: The operation to perform
* @pts: The points of the operation
* @n_pts: The number of points
* @weight: The weight for conic curves, or unused if not a conic curve.
* @user_data: The user data provided with the function
*
* Prototype of the callback to iterate throught the operations of
* a path.
*
* Returns: %TRUE to continue evaluating the path, %FALSE to
* immediately abort and not call the function again.
*/
typedef gboolean (* GskPathForeachFunc) (GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight,
gpointer user_data);
#define GSK_TYPE_PATH (gsk_path_get_type ())
GDK_AVAILABLE_IN_ALL
GType gsk_path_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_new_from_cairo (const cairo_path_t *path);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_ref (GskPath *self);
GDK_AVAILABLE_IN_ALL
void gsk_path_unref (GskPath *self);
GDK_AVAILABLE_IN_ALL
void gsk_path_print (GskPath *self,
GString *string);
GDK_AVAILABLE_IN_ALL
char * gsk_path_to_string (GskPath *self);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_parse (const char *string);
GDK_AVAILABLE_IN_ALL
void gsk_path_to_cairo (GskPath *self,
cairo_t *cr);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_is_empty (GskPath *self);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_get_bounds (GskPath *self,
graphene_rect_t *bounds);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_get_stroke_bounds (GskPath *path,
const GskStroke *stroke,
graphene_rect_t *bounds);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_is_convex (GskPath *self);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_foreach (GskPath *self,
GskPathForeachFlags flags,
GskPathForeachFunc func,
gpointer user_data);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_reverse (GskPath *self);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_transform (GskPath *self,
GskTransform *transform);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_stroke (GskPath *self,
GskStroke *stroke);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_offset (GskPath *self,
float distance,
GskLineJoin line_join,
float miter_limit);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_union (GskPath *first,
GskPath *second);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_intersection (GskPath *first,
GskPath *second);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_difference (GskPath *first,
GskPath *second);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_symmetric_difference (GskPath *first,
GskPath *second);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_simplify (GskPath *self);
G_END_DECLS
#endif /* __GSK_PATH_H__ */
-964
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@@ -1,964 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gskpathbuilder.h"
#include "gskpathprivate.h"
/**
* GskPathBuilder:
*
* A `GskPathBuilder` is an auxiliary object that is used to
* create new `GskPath` objects.
*
* A path is constructed like this:
*
* ```
* GskPath *
* construct_path (void)
* {
* GskPathBuilder *builder;
*
* builder = gsk_path_builder_new ();
*
* // add contours to the path here
*
* return gsk_path_builder_free_to_path (builder);
* }
* ```
*
* Adding contours to the path can be done in two ways.
* The easiest option is to use the `gsk_path_builder_add_*` group
* of functions that add predefined contours to the current path,
* either common shapes like [method@Gsk.PathBuilder.add_circle]
* or by adding from other paths like [method@Gsk.PathBuilder.add_path].
*
* The other option is to define each line and curve manually with
* the `gsk_path_builder_*_to` group of functions. You start with
* a call to [method@Gsk.PathBuilder.move_to] to set the starting point
* and then use multiple calls to any of the drawing functions to
* move the pen along the plane. Once you are done, you can call
* [method@Gsk.PathBuilder.close] to close the path by connecting it
* back with a line to the starting point.
* This is similar for how paths are drawn in Cairo.
*/
struct _GskPathBuilder
{
int ref_count;
GSList *contours; /* (reverse) list of already recorded contours */
GskPathFlags flags; /* flags for the current path */
graphene_point_t current_point; /* the point all drawing ops start from */
GArray *ops; /* operations for current contour - size == 0 means no current contour */
GArray *points; /* points for the operations */
};
G_DEFINE_BOXED_TYPE (GskPathBuilder,
gsk_path_builder,
gsk_path_builder_ref,
gsk_path_builder_unref)
/**
* gsk_path_builder_new:
*
* Create a new `GskPathBuilder` object. The resulting builder
* would create an empty `GskPath`. Use addition functions to add
* types to it.
*
* Returns: a new `GskPathBuilder`
**/
GskPathBuilder *
gsk_path_builder_new (void)
{
GskPathBuilder *builder;
builder = g_slice_new0 (GskPathBuilder);
builder->ref_count = 1;
builder->ops = g_array_new (FALSE, FALSE, sizeof (gskpathop));
builder->points = g_array_new (FALSE, FALSE, sizeof (graphene_point_t));
/* Be explicit here */
builder->current_point = GRAPHENE_POINT_INIT (0, 0);
return builder;
}
/**
* gsk_path_builder_ref:
* @builder: a `GskPathBuilder`
*
* Acquires a reference on the given @builder.
*
* This function is intended primarily for bindings. `GskPathBuilder` objects
* should not be kept around.
*
* Returns: (transfer none): the given `GskPathBuilder` with
* its reference count increased
*/
GskPathBuilder *
gsk_path_builder_ref (GskPathBuilder *builder)
{
g_return_val_if_fail (builder != NULL, NULL);
g_return_val_if_fail (builder->ref_count > 0, NULL);
builder->ref_count += 1;
return builder;
}
/* We're cheating here. Out pathops are relative to the NULL pointer,
* so that we can not care about the points GArray reallocating itself
* until we create the contour.
* This does however mean that we need to not use gsk_pathop_get_points()
* without offsetting the returned pointer.
*/
static inline gskpathop
gsk_pathop_encode_index (GskPathOperation op,
gsize index)
{
return gsk_pathop_encode (op, ((graphene_point_t *) NULL) + index);
}
static void
gsk_path_builder_ensure_current (GskPathBuilder *builder)
{
if (builder->ops->len != 0)
return;
builder->flags = GSK_PATH_FLAT;
g_array_append_vals (builder->ops, (gskpathop[1]) { gsk_pathop_encode_index (GSK_PATH_MOVE, 0) }, 1);
g_array_append_val (builder->points, builder->current_point);
}
static void
gsk_path_builder_append_current (GskPathBuilder *builder,
GskPathOperation op,
gsize n_points,
const graphene_point_t *points)
{
gsk_path_builder_ensure_current (builder);
g_array_append_vals (builder->ops, (gskpathop[1]) { gsk_pathop_encode_index (op, builder->points->len - 1) }, 1);
g_array_append_vals (builder->points, points, n_points);
builder->current_point = points[n_points - 1];
}
static void
gsk_path_builder_end_current (GskPathBuilder *builder)
{
GskContour *contour;
if (builder->ops->len == 0)
return;
contour = gsk_standard_contour_new (builder->flags,
(graphene_point_t *) builder->points->data,
builder->points->len,
(gskpathop *) builder->ops->data,
builder->ops->len,
(graphene_point_t *) builder->points->data - (graphene_point_t *) NULL);
g_array_set_size (builder->ops, 0);
g_array_set_size (builder->points, 0);
/* do this at the end to avoid inflooping when add_contour calls back here */
gsk_path_builder_add_contour (builder, contour);
}
static void
gsk_path_builder_clear (GskPathBuilder *builder)
{
gsk_path_builder_end_current (builder);
g_slist_free_full (builder->contours, g_free);
builder->contours = NULL;
}
/**
* gsk_path_builder_unref:
* @builder: a `GskPathBuilder`
*
* Releases a reference on the given @builder.
*/
void
gsk_path_builder_unref (GskPathBuilder *builder)
{
g_return_if_fail (builder != NULL);
g_return_if_fail (builder->ref_count > 0);
builder->ref_count -= 1;
if (builder->ref_count > 0)
return;
gsk_path_builder_clear (builder);
g_array_unref (builder->ops);
g_array_unref (builder->points);
g_slice_free (GskPathBuilder, builder);
}
/**
* gsk_path_builder_free_to_path: (skip)
* @builder: a `GskPathBuilder`
*
* Creates a new `GskPath` from the current state of the
* given @builder, and frees the @builder instance.
*
* Returns: (transfer full): the newly created `GskPath`
* with all the contours added to @builder
*/
GskPath *
gsk_path_builder_free_to_path (GskPathBuilder *builder)
{
GskPath *res;
g_return_val_if_fail (builder != NULL, NULL);
res = gsk_path_builder_to_path (builder);
gsk_path_builder_unref (builder);
return res;
}
/**
* gsk_path_builder_to_path:
* @builder: a `GskPathBuilder`
*
* Creates a new `GskPath` from the given @builder.
*
* The given `GskPathBuilder` is reset once this function returns;
* you cannot call this function multiple times on the same @builder instance.
*
* This function is intended primarily for bindings. C code should use
* gsk_path_builder_free_to_path().
*
* Returns: (transfer full): the newly created `GskPath`
* with all the contours added to @builder
*/
GskPath *
gsk_path_builder_to_path (GskPathBuilder *builder)
{
GskPath *path;
g_return_val_if_fail (builder != NULL, NULL);
gsk_path_builder_end_current (builder);
builder->contours = g_slist_reverse (builder->contours);
path = gsk_path_new_from_contours (builder->contours);
gsk_path_builder_clear (builder);
return path;
}
void
gsk_path_builder_add_contour (GskPathBuilder *builder,
GskContour *contour)
{
gsk_path_builder_end_current (builder);
builder->contours = g_slist_prepend (builder->contours, contour);
}
/**
* gsk_path_builder_get_current_point:
* @builder: a #GskPathBuilder
*
* Gets the current point. The current point is used for relative
* drawing commands and updated after every operation.
*
* When @builder is created, the default current point is set to (0, 0).
*
* Returns: (transfer none): The current point
**/
const graphene_point_t *
gsk_path_builder_get_current_point (GskPathBuilder *builder)
{
g_return_val_if_fail (builder != NULL, NULL);
return &builder->current_point;
}
/**
* gsk_path_builder_add_path:
* @builder: a `GskPathBuilder`
* @path: (transfer none): the path to append
*
* Appends all of @path to @builder.
**/
void
gsk_path_builder_add_path (GskPathBuilder *builder,
GskPath *path)
{
gsize i;
g_return_if_fail (builder != NULL);
g_return_if_fail (path != NULL);
for (i = 0; i < gsk_path_get_n_contours (path); i++)
{
const GskContour *contour = gsk_path_get_contour (path, i);
gsk_path_builder_add_contour (builder, gsk_contour_dup (contour));
}
}
/**
* gsk_path_builder_add_rect:
* @builder: A `GskPathBuilder`
* @rect: The rectangle to add to @builder
*
* Adds a path representing the given rectangle.
*
* If the width or height of the rectangle is negative, the start
* point will be on the right or bottom, respectively.
*
* If the the width or height are 0, the path will be a closed
* horizontal or vertical line. If both are 0, it'll be a closed dot.
**/
void
gsk_path_builder_add_rect (GskPathBuilder *builder,
const graphene_rect_t *rect)
{
GskContour *contour;
g_return_if_fail (builder != NULL);
contour = gsk_rect_contour_new (rect);
gsk_path_builder_add_contour (builder, contour);
gsk_contour_get_start_end (contour, NULL, &builder->current_point);
}
/**
* gsk_path_builder_add_rounded_rect:
* @builder: a `GskPathBuilder`
* @rect: the rounded rect
*
* Adds @rect as a new contour to the path built in @builder.
**/
void
gsk_path_builder_add_rounded_rect (GskPathBuilder *builder,
const GskRoundedRect *rect)
{
const float weight = sqrt(0.5f);
g_return_if_fail (builder != NULL);
g_return_if_fail (rect != NULL);
gsk_path_builder_move_to (builder,
rect->bounds.origin.x + rect->corner[GSK_CORNER_TOP_LEFT].width,
rect->bounds.origin.y);
/* top */
gsk_path_builder_line_to (builder,
rect->bounds.origin.x + rect->bounds.size.width - rect->corner[GSK_CORNER_TOP_RIGHT].width,
rect->bounds.origin.y);
/* topright corner */
gsk_path_builder_conic_to (builder,
rect->bounds.origin.x + rect->bounds.size.width,
rect->bounds.origin.y,
rect->bounds.origin.x + rect->bounds.size.width,
rect->bounds.origin.y + rect->corner[GSK_CORNER_TOP_RIGHT].height,
weight);
/* right */
gsk_path_builder_line_to (builder,
rect->bounds.origin.x + rect->bounds.size.width,
rect->bounds.origin.y + rect->bounds.size.height - rect->corner[GSK_CORNER_BOTTOM_RIGHT].height);
/* bottomright corner */
gsk_path_builder_conic_to (builder,
rect->bounds.origin.x + rect->bounds.size.width,
rect->bounds.origin.y + rect->bounds.size.height,
rect->bounds.origin.x + rect->bounds.size.width - rect->corner[GSK_CORNER_BOTTOM_RIGHT].width,
rect->bounds.origin.y + rect->bounds.size.height,
weight);
/* bottom */
gsk_path_builder_line_to (builder,
rect->bounds.origin.x + rect->corner[GSK_CORNER_BOTTOM_LEFT].width,
rect->bounds.origin.y + rect->bounds.size.height);
/* bottomleft corner */
gsk_path_builder_conic_to (builder,
rect->bounds.origin.x,
rect->bounds.origin.y + rect->bounds.size.height,
rect->bounds.origin.x,
rect->bounds.origin.y + rect->bounds.size.height - rect->corner[GSK_CORNER_BOTTOM_LEFT].height,
weight);
/* left */
gsk_path_builder_line_to (builder,
rect->bounds.origin.x,
rect->bounds.origin.y + rect->corner[GSK_CORNER_TOP_LEFT].height);
/* topleft corner */
gsk_path_builder_conic_to (builder,
rect->bounds.origin.x,
rect->bounds.origin.y,
rect->bounds.origin.x + rect->corner[GSK_CORNER_TOP_LEFT].width,
rect->bounds.origin.y,
weight);
/* done */
gsk_path_builder_close (builder);
}
/**
* gsk_path_builder_add_circle:
* @builder: a `GskPathBuilder`
* @center: the center of the circle
* @radius: the radius of the circle
*
* Adds a circle with the @center and @radius.
**/
void
gsk_path_builder_add_circle (GskPathBuilder *builder,
const graphene_point_t *center,
float radius)
{
GskContour *contour;
g_return_if_fail (builder != NULL);
g_return_if_fail (center != NULL);
g_return_if_fail (radius > 0);
contour = gsk_circle_contour_new (center, radius, 0, 360);
gsk_path_builder_add_contour (builder, contour);
}
/**
* gsk_path_builder_add_ellipse:
* @builder: a `GskPathBuilder`
* @center: the center point of the ellipse
* @radius: the radius of the ellipse in x/y direction
*
* Adds an ellipse with the given @center and the @radius in
* x/y direction.
**/
void
gsk_path_builder_add_ellipse (GskPathBuilder *builder,
const graphene_point_t *center,
const graphene_size_t *radius)
{
const float weight = sqrt(0.5f);
graphene_point_t pts[8];
g_return_if_fail (builder != NULL);
g_return_if_fail (center != NULL);
g_return_if_fail (radius != NULL);
pts[0] = GRAPHENE_POINT_INIT (center->x + radius->width / 2,
center->y);
pts[1] = GRAPHENE_POINT_INIT (center->x + radius->width / 2,
center->y + radius->height / 2);
pts[2] = GRAPHENE_POINT_INIT (center->x,
center->y + radius->height / 2);
pts[3] = GRAPHENE_POINT_INIT (center->x - radius->width / 2,
center->y + radius->height / 2);
pts[4] = GRAPHENE_POINT_INIT (center->x - radius->width / 2,
center->y);
pts[5] = GRAPHENE_POINT_INIT (center->x - radius->width / 2,
center->y - radius->height / 2);
pts[6] = GRAPHENE_POINT_INIT (center->x,
center->y - radius->height / 2);
pts[7] = GRAPHENE_POINT_INIT (center->x + radius->width / 2,
center->y - radius->height / 2);
gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, weight);
gsk_path_builder_conic_to (builder, pts[3].x, pts[3].y, pts[4].x, pts[4].y, weight);
gsk_path_builder_conic_to (builder, pts[5].x, pts[5].y, pts[6].x, pts[6].y, weight);
gsk_path_builder_conic_to (builder, pts[7].x, pts[7].y, pts[0].x, pts[0].y, weight);
gsk_path_builder_close (builder);
}
/**
* gsk_path_builder_move_to:
* @builder: a `GskPathBuilder`
* @x: x coordinate
* @y: y coordinate
*
* Starts a new contour by placing the pen at @x, @y.
*
* If `gsk_path_builder_move_to()` is called twice in succession,
* the first call will result in a contour made up of a single point.
* The second call will start a new contour.
**/
void
gsk_path_builder_move_to (GskPathBuilder *builder,
float x,
float y)
{
g_return_if_fail (builder != NULL);
gsk_path_builder_end_current (builder);
builder->current_point = GRAPHENE_POINT_INIT(x, y);
gsk_path_builder_ensure_current (builder);
}
/**
* gsk_path_builder_rel_move_to:
* @builder: a `GskPathBuilder`
* @x: x offset
* @y: y offset
*
* Starts a new contour by placing the pen at @x, @y relative to the current
* point.
*
* This is the relative version of [method@Gsk.PathBuilder.move_to].
**/
void
gsk_path_builder_rel_move_to (GskPathBuilder *builder,
float x,
float y)
{
g_return_if_fail (builder != NULL);
gsk_path_builder_move_to (builder,
builder->current_point.x + x,
builder->current_point.y + y);
}
/**
* gsk_path_builder_line_to:
* @builder: a `GskPathBuilder`
* @x: x coordinate
* @y: y coordinate
*
* Draws a line from the current point to @x, @y and makes it the new current
* point.
**/
void
gsk_path_builder_line_to (GskPathBuilder *builder,
float x,
float y)
{
g_return_if_fail (builder != NULL);
/* skip the line if it goes to the same point */
if (graphene_point_equal (&builder->current_point,
&GRAPHENE_POINT_INIT (x, y)))
return;
gsk_path_builder_append_current (builder,
GSK_PATH_LINE,
1, (graphene_point_t[1]) {
GRAPHENE_POINT_INIT (x, y)
});
}
/**
* gsk_path_builder_rel_line_to:
* @builder: a `GskPathBuilder`
* @x: x offset
* @y: y offset
*
* Draws a line from the current point to a point offset to it by @x, @y
* and makes it the new current point.
*
* This is the relative version of [method@Gsk.PathBuilder.line_to].
**/
void
gsk_path_builder_rel_line_to (GskPathBuilder *builder,
float x,
float y)
{
g_return_if_fail (builder != NULL);
gsk_path_builder_line_to (builder,
builder->current_point.x + x,
builder->current_point.y + y);
}
/**
* gsk_path_builder_curve_to:
* @builder: a `GskPathBuilder`
* @x1: x coordinate of first control point
* @y1: y coordinate of first control point
* @x2: x coordinate of second control point
* @y2: y coordinate of second control point
* @x3: x coordinate of the end of the curve
* @y3: y coordinate of the end of the curve
*
* Adds a [cubic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to @x3, @y3 with @x1, @y1 and @x2, @y2 as the control
* points.
*
* After this, @x3, @y3 will be the new current point.
**/
void
gsk_path_builder_curve_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float x3,
float y3)
{
g_return_if_fail (builder != NULL);
builder->flags &= ~GSK_PATH_FLAT;
gsk_path_builder_append_current (builder,
GSK_PATH_CURVE,
3, (graphene_point_t[3]) {
GRAPHENE_POINT_INIT (x1, y1),
GRAPHENE_POINT_INIT (x2, y2),
GRAPHENE_POINT_INIT (x3, y3)
});
}
/**
* gsk_path_builder_rel_curve_to:
* @builder: a `GskPathBuilder`
* @x1: x offset of first control point
* @y1: y offset of first control point
* @x2: x offset of second control point
* @y2: y offset of second control point
* @x3: x offset of the end of the curve
* @y3: y offset of the end of the curve
*
* Adds a [cubic Bézier curve](https://en.wikipedia.org/wiki/B%C3%A9zier_curve)
* from the current point to @x3, @y3 with @x1, @y1 and @x2, @y2 as the control
* points. All coordinates are given relative to the current point.
*
* This is the relative version of [method@Gsk.PathBuilder.curve_to].
**/
void
gsk_path_builder_rel_curve_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float x3,
float y3)
{
g_return_if_fail (builder != NULL);
gsk_path_builder_curve_to (builder,
builder->current_point.x + x1,
builder->current_point.y + y1,
builder->current_point.x + x2,
builder->current_point.y + y2,
builder->current_point.x + x3,
builder->current_point.y + y3);
}
/**
* gsk_path_builder_conic_to:
* @builder: a `GskPathBuilder`
* @x1: x coordinate of control point
* @y1: y coordinate of control point
* @x2: x coordinate of the end of the curve
* @y2: y coordinate of the end of the curve
* @weight: weight of the curve
*
* Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
* from the current point to @x2, @y2 with the given
* @weight and @x1, @y1 as the single control point.
*
* Conic curves can be used to draw ellipses and circles.
*
* After this, @x2, @y2 will be the new current point.
**/
void
gsk_path_builder_conic_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float weight)
{
g_return_if_fail (builder != NULL);
g_return_if_fail (weight >= 0);
builder->flags &= ~GSK_PATH_FLAT;
gsk_path_builder_append_current (builder,
GSK_PATH_CONIC,
3, (graphene_point_t[3]) {
GRAPHENE_POINT_INIT (x1, y1),
GRAPHENE_POINT_INIT (weight, 0),
GRAPHENE_POINT_INIT (x2, y2)
});
}
/**
* gsk_path_builder_rel_conic_to:
* @builder: a `GskPathBuilder`
* @x1: x offset of control point
* @y1: y offset of control point
* @x2: x offset of the end of the curve
* @y2: y offset of the end of the curve
* @weight: weight of the curve
*
* Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
* from the current point to @x2, @y2 with the given
* @weight and @x1, @y1 as the single control point.
*
* This is the relative version of [method@Gsk.PathBuilder.conic_to].
**/
void
gsk_path_builder_rel_conic_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float weight)
{
g_return_if_fail (builder != NULL);
g_return_if_fail (weight >= 0);
gsk_path_builder_conic_to (builder,
builder->current_point.x + x1,
builder->current_point.y + y1,
builder->current_point.x + x2,
builder->current_point.y + y2,
weight);
}
/**
* gsk_path_builder_close:
* @builder: a `GskPathBuilder`
*
* Ends the current contour with a line back to the start point.
*
* Note that this is different from calling [method@Gsk.PathBuilder.line_to]
* with the start point in that the contour will be closed. A closed
* contour behaves different from an open one when stroking its start
* and end point are considered connected, so they will be joined
* via the line join, and not ended with line caps.
**/
void
gsk_path_builder_close (GskPathBuilder *builder)
{
g_return_if_fail (builder != NULL);
if (builder->ops->len == 0)
return;
builder->flags |= GSK_PATH_CLOSED;
gsk_path_builder_append_current (builder,
GSK_PATH_CLOSE,
1, (graphene_point_t[1]) {
g_array_index (builder->points, graphene_point_t, 0)
});
gsk_path_builder_end_current (builder);
}
static void
arc_segment (GskPathBuilder *builder,
double cx,
double cy,
double rx,
double ry,
double sin_phi,
double cos_phi,
double sin_th0,
double cos_th0,
double sin_th1,
double cos_th1,
double t)
{
double x1, y1, x2, y2, x3, y3;
x1 = rx * (cos_th0 - t * sin_th0);
y1 = ry * (sin_th0 + t * cos_th0);
x3 = rx * cos_th1;
y3 = ry * sin_th1;
x2 = x3 + rx * (t * sin_th1);
y2 = y3 + ry * (-t * cos_th1);
gsk_path_builder_curve_to (builder,
cx + cos_phi * x1 - sin_phi * y1,
cy + sin_phi * x1 + cos_phi * y1,
cx + cos_phi * x2 - sin_phi * y2,
cy + sin_phi * x2 + cos_phi * y2,
cx + cos_phi * x3 - sin_phi * y3,
cy + sin_phi * x3 + cos_phi * y3);
}
void
gsk_path_builder_svg_arc_to (GskPathBuilder *builder,
float rx,
float ry,
float x_axis_rotation,
gboolean large_arc,
gboolean positive_sweep,
float x,
float y)
{
graphene_point_t *current;
double x1, y1, x2, y2;
double phi, sin_phi, cos_phi;
double mid_x, mid_y;
double lambda;
double d;
double k;
double x1_, y1_;
double cx_, cy_;
double cx, cy;
double ux, uy, u_len;
double cos_theta1, theta1;
double vx, vy, v_len;
double dp_uv;
double cos_delta_theta, delta_theta;
int i, n_segs;
double d_theta, theta;
double sin_th0, cos_th0;
double sin_th1, cos_th1;
double th_half;
double t;
if (builder->points->len > 0)
{
current = &g_array_index (builder->points, graphene_point_t, builder->points->len - 1);
x1 = current->x;
y1 = current->y;
}
else
{
x1 = 0;
y1 = 0;
}
x2 = x;
y2 = y;
phi = x_axis_rotation * M_PI / 180.0;
sincos (phi, &sin_phi, &cos_phi);
rx = fabs (rx);
ry = fabs (ry);
mid_x = (x1 - x2) / 2;
mid_y = (y1 - y2) / 2;
x1_ = cos_phi * mid_x + sin_phi * mid_y;
y1_ = - sin_phi * mid_x + cos_phi * mid_y;
lambda = (x1_ / rx) * (x1_ / rx) + (y1_ / ry) * (y1_ / ry);
if (lambda > 1)
{
lambda = sqrt (lambda);
rx *= lambda;
ry *= lambda;
}
d = (rx * y1_) * (rx * y1_) + (ry * x1_) * (ry * x1_);
if (d == 0)
return;
k = sqrt (fabs ((rx * ry) * (rx * ry) / d - 1.0));
if (positive_sweep == large_arc)
k = -k;
cx_ = k * rx * y1_ / ry;
cy_ = -k * ry * x1_ / rx;
cx = cos_phi * cx_ - sin_phi * cy_ + (x1 + x2) / 2;
cy = sin_phi * cx_ + cos_phi * cy_ + (y1 + y2) / 2;
ux = (x1_ - cx_) / rx;
uy = (y1_ - cy_) / ry;
u_len = sqrt (ux * ux + uy * uy);
if (u_len == 0)
return;
cos_theta1 = CLAMP (ux / u_len, -1, 1);
theta1 = acos (cos_theta1);
if (uy < 0)
theta1 = - theta1;
vx = (- x1_ - cx_) / rx;
vy = (- y1_ - cy_) / ry;
v_len = sqrt (vx * vx + vy * vy);
if (v_len == 0)
return;
dp_uv = ux * vx + uy * vy;
cos_delta_theta = CLAMP (dp_uv / (u_len * v_len), -1, 1);
delta_theta = acos (cos_delta_theta);
if (ux * vy - uy * vx < 0)
delta_theta = - delta_theta;
if (positive_sweep && delta_theta < 0)
delta_theta += 2 * M_PI;
else if (!positive_sweep && delta_theta > 0)
delta_theta -= 2 * M_PI;
n_segs = ceil (fabs (delta_theta / (M_PI_2 + 0.001)));
d_theta = delta_theta / n_segs;
theta = theta1;
sincos (theta1, &sin_th1, &cos_th1);
th_half = d_theta / 2;
t = (8.0 / 3.0) * sin (th_half / 2) * sin (th_half / 2) / sin (th_half);
for (i = 0; i < n_segs; i++)
{
theta = theta1;
theta1 = theta + d_theta;
sin_th0 = sin_th1;
cos_th0 = cos_th1;
sincos (theta1, &sin_th1, &cos_th1);
arc_segment (builder,
cx, cy, rx, ry,
sin_phi, cos_phi,
sin_th0, cos_th0,
sin_th1, cos_th1,
t);
}
}
/**
* gsk_path_builder_add_layout:
* @builder: a `GskPathBuilder`
* @layout: the pango layout to add
*
* Adds the outlines for the glyphs in @layout to @builder.
*/
void
gsk_path_builder_add_layout (GskPathBuilder *builder,
PangoLayout *layout)
{
cairo_surface_t *surface;
cairo_t *cr;
cairo_path_t *cairo_path;
GskPath *path;
surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
cr = cairo_create (surface);
pango_cairo_layout_path (cr, layout);
cairo_path = cairo_copy_path_flat (cr);
path = gsk_path_new_from_cairo (cairo_path);
gsk_path_builder_add_path (builder, path);
gsk_path_unref (path);
cairo_path_destroy (cairo_path);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
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/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATH_BUILDER_H__
#define __GSK_PATH_BUILDER_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gskroundedrect.h>
#include <gsk/gsktypes.h>
G_BEGIN_DECLS
#define GSK_TYPE_PATH_BUILDER (gsk_path_builder_get_type ())
GDK_AVAILABLE_IN_ALL
GType gsk_path_builder_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskPathBuilder * gsk_path_builder_new (void);
GDK_AVAILABLE_IN_ALL
GskPathBuilder * gsk_path_builder_ref (GskPathBuilder *builder);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_unref (GskPathBuilder *builder);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_builder_free_to_path (GskPathBuilder *builder) G_GNUC_WARN_UNUSED_RESULT;
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_builder_to_path (GskPathBuilder *builder) G_GNUC_WARN_UNUSED_RESULT;
GDK_AVAILABLE_IN_ALL
const graphene_point_t *gsk_path_builder_get_current_point (GskPathBuilder *builder);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_path (GskPathBuilder *builder,
GskPath *path);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_rect (GskPathBuilder *builder,
const graphene_rect_t *rect);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_rounded_rect (GskPathBuilder *builder,
const GskRoundedRect *rect);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_circle (GskPathBuilder *builder,
const graphene_point_t *center,
float radius);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_ellipse (GskPathBuilder *builder,
const graphene_point_t *center,
const graphene_size_t *radius);
/* next function implemented in gskpathmeasure.c */
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_segment (GskPathBuilder *builder,
GskPathMeasure *measure,
float start,
float end);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_move_to (GskPathBuilder *builder,
float x,
float y);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_rel_move_to (GskPathBuilder *builder,
float x,
float y);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_line_to (GskPathBuilder *builder,
float x,
float y);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_rel_line_to (GskPathBuilder *builder,
float x,
float y);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_curve_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float x3,
float y3);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_rel_curve_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float x3,
float y3);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_conic_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float weight);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_rel_conic_to (GskPathBuilder *builder,
float x1,
float y1,
float x2,
float y2,
float weight);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_close (GskPathBuilder *builder);
GDK_AVAILABLE_IN_ALL
void gsk_path_builder_add_layout (GskPathBuilder *builder,
PangoLayout *layout);
G_END_DECLS
#endif /* __GSK_PATH_BUILDER_H__ */
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/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gskpathdashprivate.h"
#include "gskcontourprivate.h"
#include "gskcurveprivate.h"
#include "gskpathprivate.h"
#include "gskstrokeprivate.h"
typedef struct
{
float offset; /* how much of the current dash we've spent */
gsize dash_index; /* goes from 0 to n_dash * 2, so we don't have to care about on/off
for uneven dashes */
gboolean on; /* If we're currently dashing or not */
gboolean may_close; /* TRUE if we haven't turned the dash off in this contour */
gboolean needs_move_to; /* If we have emitted the initial move_to() yet */
enum {
NORMAL, /* no special behavior required */
SKIP, /* skip the next dash */
ONLY, /* only do the first dash */
DONE /* done with the first dash */
} first_dash_behavior; /* How to handle the first dash in the loop. We loop closed contours
twice to make sure the first dash and the last dash can get joined */
GskCurve curve; /* Curve we are currently processing */
float collect_start; /* We're collecting multiple line segments when decomposing. */
float collect_length; /* No need to emit a curve for every line segment when the dash is long enough. */
/* from the stroke */
float *dash;
gsize n_dash;
float dash_length;
float dash_offset;
float tolerance;
GskPathForeachFunc func;
gpointer user_data;
} GskPathDash;
static void
gsk_path_dash_setup (GskPathDash *self)
{
self->offset = fmodf (self->dash_offset, 2 * self->dash_length);
self->dash_index = 0;
self->on = TRUE;
self->may_close = TRUE;
while (self->offset > self->dash[self->dash_index % self->n_dash])
{
self->offset -= self->dash[self->dash_index % self->n_dash];
self->dash_index++;
self->on = !self->on;
}
if (self->first_dash_behavior != ONLY)
self->needs_move_to = TRUE;
}
static gboolean
gsk_path_dash_ensure_move_to (GskPathDash *self,
const graphene_point_t *pt)
{
if (!self->needs_move_to)
return TRUE;
if (!self->func (GSK_PATH_MOVE, pt, 1, 0, self->user_data))
return FALSE;
self->needs_move_to = FALSE;
return TRUE;
}
static gboolean
gsk_path_dash_add_line_segment (const graphene_point_t *start,
const graphene_point_t *end,
float t_start,
float t_end,
gpointer user_data)
{
GskPathDash *self = user_data;
float remaining, length, t_step;
length = graphene_point_distance (start, end, NULL, NULL);
if (self->collect_length)
{
t_start = self->collect_start;
length += self->collect_length;
self->collect_length = 0;
}
t_step = t_end - t_start;
remaining = length;
while (remaining)
{
float piece;
if (self->offset + remaining <= self->dash[self->dash_index % self->n_dash])
{
/* try collecting multiple line segments */
if (t_end < 1.0)
{
self->collect_start = t_start + t_step * (length - remaining) / length;
self->collect_length = remaining;
return TRUE;
}
piece = remaining;
}
else
piece = self->dash[self->dash_index % self->n_dash] - self->offset;
if (self->on)
{
if (self->first_dash_behavior != SKIP)
{
GskCurve segment;
if (piece)
{
gsk_curve_segment (&self->curve,
t_start + t_step * (length - remaining) / length,
t_start + t_step * (length - (remaining - piece)) / length,
&segment);
if (!gsk_path_dash_ensure_move_to (self, gsk_curve_get_start_point (&segment)))
return FALSE;
if (!gsk_pathop_foreach (gsk_curve_pathop (&segment), self->func, self->user_data))
return FALSE;
}
else
{
graphene_point_t p;
gsk_curve_get_point (&self->curve, t_start + t_step * (length - remaining) / length, &p);
if (!gsk_path_dash_ensure_move_to (self, &p))
return FALSE;
}
}
}
else
{
self->may_close = FALSE;
if (self->first_dash_behavior == ONLY)
{
self->first_dash_behavior = DONE;
return FALSE;
}
self->first_dash_behavior = NORMAL;
}
if (self->offset + remaining <= self->dash[self->dash_index % self->n_dash])
{
self->offset += remaining;
remaining = 0;
}
else
{
remaining -= piece;
self->offset = 0;
self->dash_index++;
self->dash_index %= 2 * self->n_dash;
self->on = !self->on;
self->needs_move_to = TRUE;
}
}
return TRUE;
}
static gboolean
gsk_path_dash_foreach (GskPathOperation op,
const graphene_point_t *pts,
gsize n_pts,
float weight,
gpointer user_data)
{
GskPathDash *self = user_data;
switch (op)
{
case GSK_PATH_MOVE:
gsk_path_dash_setup (self);
break;
case GSK_PATH_CLOSE:
if (self->may_close)
{
if (graphene_point_equal (&pts[0], &pts[1]))
return self->func (GSK_PATH_CLOSE, pts, 2, 0, self->user_data);
}
else
op = GSK_PATH_LINE;
G_GNUC_FALLTHROUGH;
case GSK_PATH_LINE:
case GSK_PATH_CURVE:
case GSK_PATH_CONIC:
gsk_curve_init_foreach (&self->curve, op, pts, n_pts, weight);
if (!gsk_curve_decompose (&self->curve, self->tolerance, gsk_path_dash_add_line_segment, self))
return FALSE;
break;
default:
g_assert_not_reached ();
break;
}
return TRUE;
}
gboolean
gsk_contour_dash (const GskContour *contour,
GskStroke *stroke,
float tolerance,
GskPathForeachFunc func,
gpointer user_data)
{
GskPathDash self = {
.offset = 0,
.dash = stroke->dash,
.n_dash = stroke->n_dash,
.dash_length = stroke->dash_length,
.dash_offset = stroke->dash_offset,
.tolerance = tolerance,
.func = func,
.user_data = user_data
};
gboolean is_closed = gsk_contour_get_flags (contour) & GSK_PATH_CLOSED ? TRUE : FALSE;
self.first_dash_behavior = is_closed ? SKIP : NORMAL;
if (!gsk_contour_foreach (contour, tolerance, gsk_path_dash_foreach, &self))
return FALSE;
if (is_closed)
{
if (self.first_dash_behavior == NORMAL)
self.first_dash_behavior = ONLY;
else
self.first_dash_behavior = NORMAL;
self.needs_move_to = !self.on;
if (!gsk_contour_foreach (contour, tolerance, gsk_path_dash_foreach, &self) &&
self.first_dash_behavior != DONE)
return FALSE;
}
return TRUE;
}
gboolean
gsk_path_dash (GskPath *path,
GskStroke *stroke,
float tolerance,
GskPathForeachFunc func,
gpointer user_data)
{
gsize i;
/* Dashing disabled, no need to do any work */
if (stroke->dash_length <= 0)
return gsk_path_foreach (path, -1, func, user_data);
for (i = 0; i < gsk_path_get_n_contours (path); i++)
{
if (!gsk_contour_dash (gsk_path_get_contour (path, i), stroke, tolerance, func, user_data))
return FALSE;
}
return TRUE;
}
-50
View File
@@ -1,50 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATH_DASH_PRIVATE_H__
#define __GSK_PATH_DASH_PRIVATE_H__
#include <gsk/gskpath.h>
G_BEGIN_DECLS
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_dash (GskPath *path,
GskStroke *stroke,
float tolerance,
GskPathForeachFunc func,
gpointer user_data);
#ifdef GTK_COMPILATION
#include "gskcontourprivate.h"
gboolean gsk_contour_dash (const GskContour *contour,
GskStroke *stroke,
float tolerance,
GskPathForeachFunc func,
gpointer user_data);
#endif /* GTK_COMPILATION */
G_END_DECLS
#endif /* __GSK_PATH_DASH_PRIVATE_H__ */
-677
View File
@@ -1,677 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gskpathmeasure.h"
#include "gskpathbuilder.h"
#include "gskpathbuilder.h"
#include "gskpathprivate.h"
/**
* GskPathMeasure:
*
* `GskPathMeasure` is an object that allows measuring operations
* on `GskPath` objects, to determine quantities like the arc
* length of the path, its curvature, or closest points.
*
* These operations are useful when implementing animations.
*/
typedef struct _GskContourMeasure GskContourMeasure;
struct _GskContourMeasure
{
float length;
gpointer contour_data;
};
struct _GskPathMeasure
{
/*< private >*/
guint ref_count;
GskPath *path;
float tolerance;
gsize first;
gsize last;
float length;
gsize n_contours;
GskContourMeasure measures[];
};
G_DEFINE_BOXED_TYPE (GskPathMeasure, gsk_path_measure,
gsk_path_measure_ref,
gsk_path_measure_unref)
/**
* gsk_path_measure_new:
* @path: the path to measure
*
* Creates a measure object for the given @path with a
* default tolerance.
*
* Returns: a new `GskPathMeasure` representing @path
**/
GskPathMeasure *
gsk_path_measure_new (GskPath *path)
{
return gsk_path_measure_new_with_tolerance (path, GSK_PATH_TOLERANCE_DEFAULT);
}
/**
* gsk_path_measure_new_with_tolerance:
* @path: the path to measure
* @tolerance: the tolerance for measuring operations
*
* Creates a measure object for the given @path and @tolerance.
*
* Returns: a new `GskPathMeasure` representing @path
**/
GskPathMeasure *
gsk_path_measure_new_with_tolerance (GskPath *path,
float tolerance)
{
GskPathMeasure *self;
gsize i, n_contours;
g_return_val_if_fail (path != NULL, NULL);
g_return_val_if_fail (tolerance > 0, NULL);
n_contours = gsk_path_get_n_contours (path);
self = g_malloc0 (sizeof (GskPathMeasure) + n_contours * sizeof (GskContourMeasure));
self->ref_count = 1;
self->path = gsk_path_ref (path);
self->tolerance = tolerance;
self->n_contours = n_contours;
self->first = 0;
self->last = n_contours;
for (i = 0; i < n_contours; i++)
{
self->measures[i].contour_data = gsk_contour_init_measure (gsk_path_get_contour (path, i),
self->tolerance,
&self->measures[i].length);
self->length += self->measures[i].length;
}
return self;
}
/**
* gsk_path_measure_ref:
* @self: a `GskPathMeasure`
*
* Increases the reference count of a `GskPathMeasure` by one.
*
* Returns: the passed in `GskPathMeasure`.
**/
GskPathMeasure *
gsk_path_measure_ref (GskPathMeasure *self)
{
g_return_val_if_fail (self != NULL, NULL);
self->ref_count++;
return self;
}
/**
* gsk_path_measure_unref:
* @self: a `GskPathMeasure`
*
* Decreases the reference count of a `GskPathMeasure` by one.
*
* If the resulting reference count is zero, frees the object.
**/
void
gsk_path_measure_unref (GskPathMeasure *self)
{
gsize i;
g_return_if_fail (self != NULL);
g_return_if_fail (self->ref_count > 0);
self->ref_count--;
if (self->ref_count > 0)
return;
for (i = 0; i < self->n_contours; i++)
{
gsk_contour_free_measure (gsk_path_get_contour (self->path, i),
self->measures[i].contour_data);
}
gsk_path_unref (self->path);
g_free (self);
}
/**
* gsk_path_measure_get_path:
* @self: a `GskPathMeasure`
*
* Returns the path that the measure was created for.
*
* Returns: (transfer none): the path of @self
*/
GskPath *
gsk_path_measure_get_path (GskPathMeasure *self)
{
g_return_val_if_fail (self != NULL, NULL);
return self->path;
}
/**
* gsk_path_measure_get_tolerance:
* @self: a `GskPathMeasure`
*
* Returns the tolerance that the measure was created with.
*
* Returns: the tolerance of @self
*/
float
gsk_path_measure_get_tolerance (GskPathMeasure *self)
{
g_return_val_if_fail (self != NULL, 0.f);
return self->tolerance;
}
/**
* gsk_path_measure_get_n_contours:
* @self: a `GskPathMeasure`
*
* Returns the number of contours in the path being measured.
*
* The returned value is independent of whether @self if restricted
* or not.
*
* Returns: The number of contours
**/
gsize
gsk_path_measure_get_n_contours (GskPathMeasure *self)
{
g_return_val_if_fail (self != NULL, 0);
return self->n_contours;
}
/**
* gsk_path_measure_restrict_to_contour:
* @self: a `GskPathMeasure`
* @contour: contour to restrict to or (gsize) -1 for using the
* whole path
*
* Restricts all functions on the path to just the given @contour.
*
* If @contour >= gsk_path_measure_get_n_contours() - so in
* particular when it is set to -1 - the whole path will be used.
**/
void
gsk_path_measure_restrict_to_contour (GskPathMeasure *self,
gsize contour)
{
if (contour >= self->n_contours)
{
/* use the whole path */
self->first = 0;
self->last = self->n_contours;
}
else
{
/* use just one contour */
self->first = contour;
self->last = contour + 1;
}
self->length = 0;
for (gsize i = self->first; i < self->last; i++)
{
self->length += self->measures[i].length;
}
}
/**
* gsk_path_measure_get_length:
* @self: a `GskPathMeasure`
*
* Gets the length of the path being measured.
*
* The length is cached, so this function does not do any work.
*
* Returns: The length of the path measured by @self
**/
float
gsk_path_measure_get_length (GskPathMeasure *self)
{
g_return_val_if_fail (self != NULL, 0);
return self->length;
}
/**
* gsk_path_measure_is_closed:
* @self: a `GskPathMeasure`
*
* Returns if the path being measured represents a single closed
* contour.
*
* Returns: %TRUE if the current path is closed
**/
gboolean
gsk_path_measure_is_closed (GskPathMeasure *self)
{
const GskContour *contour;
g_return_val_if_fail (self != NULL, FALSE);
/* XXX: is the empty path closed? Currently it's not */
if (self->last - self->first != 1)
return FALSE;
contour = gsk_path_get_contour (self->path, self->first);
return gsk_contour_get_flags (contour) & GSK_PATH_CLOSED ? TRUE : FALSE;
}
static float
gsk_path_measure_clamp_distance (GskPathMeasure *self,
float distance)
{
if (isnan (distance))
return 0;
return CLAMP (distance, 0, self->length);
}
/**
* gsk_path_measure_get_point:
* @self: a `GskPathMeasure`
* @distance: distance into the path
* @pos: (optional) (out caller-allocates): The coordinates
* of the position at @distance
* @tangent: (optional) (out caller-allocates): The tangent
* to the position at @distance
*
* Calculates the coordinates and tangent of the point @distance
* units into the path. The value will be clamped to the length
* of the path.
*
* If the point is a discontinuous edge in the path, the returned
* point and tangent will describe the line starting at that point
* going forward.
*
* If @self describes an empty path, the returned point will be
* set to `(0, 0)` and the tangent will be the x axis or `(1, 0)`.
**/
void
gsk_path_measure_get_point (GskPathMeasure *self,
float distance,
graphene_point_t *pos,
graphene_vec2_t *tangent)
{
gsize i;
g_return_if_fail (self != NULL);
if (pos == NULL && tangent == NULL)
return;
distance = gsk_path_measure_clamp_distance (self, distance);
for (i = self->first; i < self->last; i++)
{
if (distance < self->measures[i].length)
break;
distance -= self->measures[i].length;
}
/* weird corner cases */
if (i == self->last)
{
/* the empty path goes here */
if (self->first == self->last)
{
if (pos)
graphene_point_init (pos, 0.f, 0.f);
if (tangent)
graphene_vec2_init (tangent, 1.f, 0.f);
return;
}
/* rounding errors can make this happen */
i = self->last - 1;
distance = self->measures[i].length;
}
gsk_contour_get_point (gsk_path_get_contour (self->path, i),
self->measures[i].contour_data,
distance,
pos,
tangent);
}
/**
* gsk_path_measure_get_curvature:
* @self: a `GskPathMeasure`
* @distance: distance into the path
* @center: (optional) (out caller-allocates): The center
* of the osculating circle at the point
*
* Calculates the curvature at the point @distance units into
* the path.
*
* Optionally, returns the center of the osculating circle as well.
*
* If the curvature is infinite (at line segments), or does
* not exist (at sharp turns), zero is returned, and @center
* is not modified.
*
* Returns: The curvature of the path at the given point
*/
float
gsk_path_measure_get_curvature (GskPathMeasure *self,
float distance,
graphene_point_t *center)
{
gsize i;
g_return_val_if_fail (self != NULL, 0);
distance = gsk_path_measure_clamp_distance (self, distance);
for (i = self->first; i < self->last; i++)
{
if (distance < self->measures[i].length)
break;
distance -= self->measures[i].length;
}
/* weird corner cases */
if (i == self->last)
{
/* the empty path goes here */
if (self->first == self->last)
return 0;
/* rounding errors can make this happen */
i = self->last - 1;
distance = self->measures[i].length;
}
return gsk_contour_get_curvature (gsk_path_get_contour (self->path, i),
self->measures[i].contour_data,
distance,
center);
}
/**
* gsk_path_measure_get_closest_point:
* @self: a `GskPathMeasure`
* @point: the point to find the closest point to
* @out_pos: (optional) (out caller-allocates): return location
* for the closest point
*
* Gets the point on the path that is closest to @point.
*
* If the path being measured is empty, return 0 and set
* @out_pos to (0, 0).
*
* This is a simpler and slower version of
* [method@Gsk.PathMeasure.get_closest_point_full].
* Use that one if you need more control.
*
* Returns: The offset into the path of the closest point
**/
float
gsk_path_measure_get_closest_point (GskPathMeasure *self,
const graphene_point_t *point,
graphene_point_t *out_pos)
{
float result;
g_return_val_if_fail (self != NULL, 0.0f);
if (gsk_path_measure_get_closest_point_full (self,
point,
INFINITY,
NULL,
out_pos,
&result,
NULL))
return result;
if (out_pos)
*out_pos = GRAPHENE_POINT_INIT (0, 0);
return 0;
}
/**
* gsk_path_measure_get_closest_point_full:
* @self: a `GskPathMeasure`
* @point: the point to find the closest point to
* @threshold: The maximum allowed distance between the path and @point.
* Use INFINITY to look for any point.
* @out_distance: (optional) (out caller-allocates): The
* distance between the found closest point on the path and the given
* @point.
* @out_pos: (optional) (out caller-allocates): return location
* for the closest point
* @out_offset: (optional) (out caller-allocates): The offset into
* the path of the found point
* @out_tangent: (optional) (out caller-allocates): return location for
* the tangent at the closest point
*
* Gets the point on the path that is closest to @point. If no point on
* path is closer to @point than @threshold, return %FALSE.
*
* Returns: %TRUE if a point was found, %FALSE otherwise.
**/
gboolean
gsk_path_measure_get_closest_point_full (GskPathMeasure *self,
const graphene_point_t *point,
float threshold,
float *out_distance,
graphene_point_t *out_pos,
float *out_offset,
graphene_vec2_t *out_tangent)
{
gboolean result;
gsize i;
float distance, length;
g_return_val_if_fail (self != NULL, FALSE);
g_return_val_if_fail (point != NULL, FALSE);
result = FALSE;
length = 0;
for (i = self->first; i < self->last; i++)
{
if (gsk_contour_get_closest_point (gsk_path_get_contour (self->path, i),
self->measures[i].contour_data,
self->tolerance,
point,
threshold,
&distance,
out_pos,
out_offset,
out_tangent))
{
result = TRUE;
if (out_offset)
*out_offset += length;
if (distance < self->tolerance)
break;
threshold = distance - self->tolerance;
}
length += self->measures[i].length;
}
if (result && out_distance)
*out_distance = distance;
return result;
}
/**
* gsk_path_measure_in_fill:
* @self: a #GskPathMeasure
* @point: the point to test
* @fill_rule: the fill rule to follow
*
* Returns whether the given point is inside the area that would be
* affected if the path of @self was filled according to @fill_rule.
*
* Returns: %TRUE if @point is inside
*/
gboolean
gsk_path_measure_in_fill (GskPathMeasure *self,
graphene_point_t *point,
GskFillRule fill_rule)
{
int winding = 0;
gboolean on_edge = FALSE;
int i;
for (i = self->first; i < self->last; i++)
{
winding += gsk_contour_get_winding (gsk_path_get_contour (self->path, i),
self->measures[i].contour_data,
point,
&on_edge);
if (on_edge)
return TRUE;
}
switch (fill_rule)
{
case GSK_FILL_RULE_EVEN_ODD:
return winding & 1;
case GSK_FILL_RULE_WINDING:
return winding != 0;
default:
g_assert_not_reached ();
}
}
static void
gsk_path_builder_add_segment_chunk (GskPathBuilder *self,
GskPathMeasure *measure,
gboolean emit_move_to,
float start,
float end)
{
g_assert (start < end);
for (gsize i = measure->first; i < measure->last; i++)
{
if (measure->measures[i].length < start)
{
start -= measure->measures[i].length;
end -= measure->measures[i].length;
}
else if (start > 0 || end < measure->measures[i].length)
{
float len = MIN (end, measure->measures[i].length);
gsk_contour_add_segment (gsk_path_get_contour (measure->path, i),
self,
measure->measures[i].contour_data,
emit_move_to,
start,
len);
end -= len;
start = 0;
if (end <= 0)
break;
}
else
{
end -= measure->measures[i].length;
gsk_path_builder_add_contour (self, gsk_contour_dup (gsk_path_get_contour (measure->path, i)));
}
emit_move_to = TRUE;
}
}
/**
* gsk_path_builder_add_segment:
* @builder: a `GskPathBuilder`
* @measure: the `GskPathMeasure` to take the segment to
* @start: start distance into the path
* @end: end distance into the path
*
* Adds to @builder the segment of @measure from @start to @end.
*
* The distances are given relative to the length of @measure's path,
* from 0 for the beginning of the path to [method@Gsk.PathMeasure.get_length]
* for the end of the path. The values will be clamped to that range.
*
* If @start >= @end after clamping, the path will first add the segment
* from @start to the end of the path, and then add the segment from
* the beginning to @end. If the path is closed, these segments will
* be connected.
**/
void
gsk_path_builder_add_segment (GskPathBuilder *builder,
GskPathMeasure *measure,
float start,
float end)
{
g_return_if_fail (builder != NULL);
g_return_if_fail (measure != NULL);
start = gsk_path_measure_clamp_distance (measure, start);
end = gsk_path_measure_clamp_distance (measure, end);
if (start < end)
{
gsk_path_builder_add_segment_chunk (builder, measure, TRUE, start, end);
}
else
{
/* If the path is closed, we can connect the 2 subpaths. */
gboolean closed = gsk_path_measure_is_closed (measure);
gboolean need_move_to = !closed;
if (start < measure->length)
gsk_path_builder_add_segment_chunk (builder, measure,
TRUE,
start, measure->length);
else
need_move_to = TRUE;
if (end > 0)
gsk_path_builder_add_segment_chunk (builder, measure,
need_move_to,
0, end);
if (start == end && closed)
gsk_path_builder_close (builder);
}
}
-92
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@@ -1,92 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATH_MEASURE_H__
#define __GSK_PATH_MEASURE_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gskpath.h>
G_BEGIN_DECLS
#define GSK_TYPE_PATH_MEASURE (gsk_path_measure_get_type ())
GDK_AVAILABLE_IN_ALL
GType gsk_path_measure_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskPathMeasure * gsk_path_measure_new (GskPath *path);
GDK_AVAILABLE_IN_ALL
GskPathMeasure * gsk_path_measure_new_with_tolerance (GskPath *path,
float tolerance);
GDK_AVAILABLE_IN_ALL
GskPathMeasure * gsk_path_measure_ref (GskPathMeasure *self);
GDK_AVAILABLE_IN_ALL
void gsk_path_measure_unref (GskPathMeasure *self);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_path_measure_get_path (GskPathMeasure *self) G_GNUC_PURE;
GDK_AVAILABLE_IN_ALL
float gsk_path_measure_get_tolerance (GskPathMeasure *self) G_GNUC_PURE;
GDK_AVAILABLE_IN_ALL
gsize gsk_path_measure_get_n_contours (GskPathMeasure *self) G_GNUC_PURE;
GDK_AVAILABLE_IN_ALL
void gsk_path_measure_restrict_to_contour (GskPathMeasure *self,
gsize contour);
GDK_AVAILABLE_IN_ALL
float gsk_path_measure_get_length (GskPathMeasure *self);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_measure_is_closed (GskPathMeasure *self);
GDK_AVAILABLE_IN_ALL
void gsk_path_measure_get_point (GskPathMeasure *self,
float distance,
graphene_point_t *pos,
graphene_vec2_t *tangent);
GDK_AVAILABLE_IN_ALL
float gsk_path_measure_get_curvature (GskPathMeasure *self,
float distance,
graphene_point_t *center);
GDK_AVAILABLE_IN_ALL
float gsk_path_measure_get_closest_point (GskPathMeasure *self,
const graphene_point_t *point,
graphene_point_t *out_pos);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_measure_get_closest_point_full (GskPathMeasure *self,
const graphene_point_t *point,
float threshold,
float *out_distance,
graphene_point_t *out_pos,
float *out_offset,
graphene_vec2_t *out_tangent);
GDK_AVAILABLE_IN_ALL
gboolean gsk_path_measure_in_fill (GskPathMeasure *self,
graphene_point_t *point,
GskFillRule fill_rule);
G_END_DECLS
#endif /* __GSK_PATH_MEASURE_H__ */
-179
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@@ -1,179 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATHOP_PRIVATE_H__
#define __GSK_PATHOP_PRIVATE_H__
#include <gsk/gskpath.h>
#include <gsk/gskpathbuilder.h>
G_BEGIN_DECLS
typedef gpointer gskpathop;
static inline
gskpathop gsk_pathop_encode (GskPathOperation op,
const graphene_point_t *pts);
static inline
const graphene_point_t *gsk_pathop_points (gskpathop pop);
static inline
GskPathOperation gsk_pathop_op (gskpathop pop);
static inline
gboolean gsk_pathop_foreach (gskpathop pop,
GskPathForeachFunc func,
gpointer user_data);
/* included inline so tests can use them */
static inline
void gsk_path_builder_pathop_to (GskPathBuilder *builder,
gskpathop op);
static inline
void gsk_path_builder_pathop_reverse_to (GskPathBuilder *builder,
gskpathop op);
/* IMPLEMENTATION */
#define GSK_PATHOP_OPERATION_MASK (0x7)
static inline gskpathop
gsk_pathop_encode (GskPathOperation op,
const graphene_point_t *pts)
{
/* g_assert (op & GSK_PATHOP_OPERATION_MASK == op); */
g_assert ((GPOINTER_TO_SIZE (pts) & GSK_PATHOP_OPERATION_MASK) == 0);
return GSIZE_TO_POINTER (GPOINTER_TO_SIZE (pts) | op);
}
static inline const graphene_point_t *
gsk_pathop_points (gskpathop pop)
{
return GSIZE_TO_POINTER (GPOINTER_TO_SIZE (pop) & ~GSK_PATHOP_OPERATION_MASK);
}
static inline
GskPathOperation gsk_pathop_op (gskpathop pop)
{
return GPOINTER_TO_SIZE (pop) & GSK_PATHOP_OPERATION_MASK;
}
static inline gboolean
gsk_pathop_foreach (gskpathop pop,
GskPathForeachFunc func,
gpointer user_data)
{
switch (gsk_pathop_op (pop))
{
case GSK_PATH_MOVE:
return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 1, 0, user_data);
case GSK_PATH_CLOSE:
case GSK_PATH_LINE:
return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 2, 0, user_data);
case GSK_PATH_CURVE:
return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 4, 0, user_data);
case GSK_PATH_CONIC:
{
const graphene_point_t *pts = gsk_pathop_points (pop);
return func (gsk_pathop_op (pop), (graphene_point_t[3]) { pts[0], pts[1], pts[3] }, 3, pts[2].x, user_data);
}
default:
g_assert_not_reached ();
return TRUE;
}
}
static inline void
gsk_path_builder_pathop_to (GskPathBuilder *builder,
gskpathop op)
{
const graphene_point_t *pts = gsk_pathop_points (op);
switch (gsk_pathop_op (op))
{
case GSK_PATH_MOVE:
gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
break;
case GSK_PATH_CLOSE:
gsk_path_builder_close (builder);
break;
case GSK_PATH_LINE:
gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
break;
case GSK_PATH_CURVE:
gsk_path_builder_curve_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
break;
case GSK_PATH_CONIC:
gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[3].x, pts[3].y, pts[2].x);
break;
default:
g_assert_not_reached ();
break;
}
}
static inline void
gsk_path_builder_pathop_reverse_to (GskPathBuilder *builder,
gskpathop op)
{
const graphene_point_t *pts = gsk_pathop_points (op);
switch (gsk_pathop_op (op))
{
case GSK_PATH_MOVE:
gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
break;
case GSK_PATH_CLOSE:
gsk_path_builder_line_to (builder, pts[0].x, pts[0].y);
break;
case GSK_PATH_LINE:
gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
break;
case GSK_PATH_CURVE:
gsk_path_builder_curve_to (builder, pts[2].x, pts[2].y, pts[1].x, pts[1].y, pts[0].x, pts[0].y);
break;
case GSK_PATH_CONIC:
gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[0].x, pts[0].y, pts[2].x);
break;
default:
g_assert_not_reached ();
break;
}
}
G_END_DECLS
#endif /* __GSK_PATHOP_PRIVATE_H__ */
-1427
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-78
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@@ -1,78 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_PATH_PRIVATE_H__
#define __GSK_PATH_PRIVATE_H__
#include "gskpath.h"
#include "gskcontourprivate.h"
#include "gskpathopprivate.h"
G_BEGIN_DECLS
/* Same as Skia, so looks like a good value. ¯\_(ツ)_/¯ */
#define GSK_PATH_TOLERANCE_DEFAULT (0.5)
GskPath * gsk_path_new_from_contours (const GSList *contours);
gsize gsk_path_get_n_contours (GskPath *path);
const GskContour * gsk_path_get_contour (GskPath *path,
gsize i);
GskPathFlags gsk_path_get_flags (GskPath *self);
gboolean gsk_path_foreach_with_tolerance (GskPath *self,
GskPathForeachFlags flags,
double tolerance,
GskPathForeachFunc func,
gpointer user_data);
void gsk_path_builder_add_contour (GskPathBuilder *builder,
GskContour *contour);
void gsk_path_builder_svg_arc_to (GskPathBuilder *builder,
float rx,
float ry,
float x_axis_rotation,
gboolean large_arc,
gboolean positive_sweep,
float x,
float y);
typedef enum
{
GSK_PATH_OP_SIMPLIFY,
GSK_PATH_OP_UNION,
GSK_PATH_OP_INTERSECTION,
GSK_PATH_OP_DIFFERENCE,
GSK_PATH_OP_XOR
} GskPathOp;
GskPath * gsk_path_op (GskPathOp operation,
GskPath *first,
GskPath *second);
G_END_DECLS
#endif /* __GSK_PATH_PRIVATE_H__ */
-2073
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+1 -31
View File
@@ -158,8 +158,6 @@ GskRenderNode * gsk_render_node_deserialize (GBytes
#define GSK_TYPE_REPEAT_NODE (gsk_repeat_node_get_type())
#define GSK_TYPE_CLIP_NODE (gsk_clip_node_get_type())
#define GSK_TYPE_ROUNDED_CLIP_NODE (gsk_rounded_clip_node_get_type())
#define GSK_TYPE_FILL_NODE (gsk_fill_node_get_type())
#define GSK_TYPE_STROKE_NODE (gsk_stroke_node_get_type())
#define GSK_TYPE_SHADOW_NODE (gsk_shadow_node_get_type())
#define GSK_TYPE_BLEND_NODE (gsk_blend_node_get_type())
#define GSK_TYPE_CROSS_FADE_NODE (gsk_cross_fade_node_get_type())
@@ -186,8 +184,6 @@ typedef struct _GskColorMatrixNode GskColorMatrixNode;
typedef struct _GskRepeatNode GskRepeatNode;
typedef struct _GskClipNode GskClipNode;
typedef struct _GskRoundedClipNode GskRoundedClipNode;
typedef struct _GskFillNode GskFillNode;
typedef struct _GskStrokeNode GskStrokeNode;
typedef struct _GskShadowNode GskShadowNode;
typedef struct _GskBlendNode GskBlendNode;
typedef struct _GskCrossFadeNode GskCrossFadeNode;
@@ -449,32 +445,6 @@ GskRenderNode * gsk_rounded_clip_node_get_child (const GskRender
GDK_AVAILABLE_IN_ALL
const GskRoundedRect * gsk_rounded_clip_node_get_clip (const GskRenderNode *node) G_GNUC_PURE;
GDK_AVAILABLE_IN_ALL
GType gsk_fill_node_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskRenderNode * gsk_fill_node_new (GskRenderNode *child,
GskPath *path,
GskFillRule fill_rule);
GDK_AVAILABLE_IN_ALL
GskRenderNode * gsk_fill_node_get_child (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_fill_node_get_path (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
GskFillRule gsk_fill_node_get_fill_rule (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
GType gsk_stroke_node_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskRenderNode * gsk_stroke_node_new (GskRenderNode *child,
GskPath *path,
const GskStroke *stroke);
GDK_AVAILABLE_IN_ALL
GskRenderNode * gsk_stroke_node_get_child (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
GskPath * gsk_stroke_node_get_path (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
const GskStroke * gsk_stroke_node_get_stroke (const GskRenderNode *node);
GDK_AVAILABLE_IN_ALL
GType gsk_shadow_node_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
@@ -524,7 +494,7 @@ GskRenderNode * gsk_text_node_new (PangoFont
const graphene_point_t *offset);
GDK_AVAILABLE_IN_ALL
PangoFont * gsk_text_node_get_font (const GskRenderNode *node) G_GNUC_PURE;
GDK_AVAILABLE_IN_4_2
GDK_AVAILABLE_IN_ALL
gboolean gsk_text_node_has_color_glyphs (const GskRenderNode *node) G_GNUC_PURE;
GDK_AVAILABLE_IN_ALL
guint gsk_text_node_get_num_glyphs (const GskRenderNode *node) G_GNUC_PURE;
+12 -383
View File
@@ -23,10 +23,8 @@
#include "gskcairoblurprivate.h"
#include "gskdebugprivate.h"
#include "gskdiffprivate.h"
#include "gskpath.h"
#include "gskrendererprivate.h"
#include "gskroundedrectprivate.h"
#include "gskstrokeprivate.h"
#include "gsktransformprivate.h"
#include "gdk/gdktextureprivate.h"
@@ -830,14 +828,18 @@ project (double angle,
{
double x, y;
#ifdef HAVE_SINCOS
sincos (angle, &y, &x);
#else
x = cos (angle);
y = sin (angle);
#endif
*x_out = radius * x;
*y_out = radius * y;
x = radius * cos (angle);
y = radius * sin (angle);
if (copysign (x, 1.0) > copysign (y, 1.0))
{
*x_out = copysign (radius, x);
*y_out = y * radius / copysign (x, 1.0);
}
else
{
*x_out = x * radius / copysign (y, 1.0);
*y_out = copysign (radius, y);
}
}
static void
@@ -3763,343 +3765,6 @@ gsk_rounded_clip_node_get_clip (const GskRenderNode *node)
return &self->clip;
}
/*** GSK_FILL_NODE ***/
struct _GskFillNode
{
GskRenderNode render_node;
GskRenderNode *child;
GskPath *path;
GskFillRule fill_rule;
};
static void
gsk_fill_node_finalize (GskRenderNode *node)
{
GskFillNode *self = (GskFillNode *) node;
GskRenderNodeClass *parent_class = g_type_class_peek (g_type_parent (GSK_TYPE_FILL_NODE));
gsk_render_node_unref (self->child);
gsk_path_unref (self->path);
parent_class->finalize (node);
}
static void
gsk_fill_node_draw (GskRenderNode *node,
cairo_t *cr)
{
GskFillNode *self = (GskFillNode *) node;
cairo_save (cr);
switch (self->fill_rule)
{
case GSK_FILL_RULE_WINDING:
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
break;
case GSK_FILL_RULE_EVEN_ODD:
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
break;
default:
g_assert_not_reached ();
break;
}
gsk_path_to_cairo (self->path, cr);
cairo_clip (cr);
gsk_render_node_draw (self->child, cr);
cairo_restore (cr);
}
static void
gsk_fill_node_diff (GskRenderNode *node1,
GskRenderNode *node2,
cairo_region_t *region)
{
GskFillNode *self1 = (GskFillNode *) node1;
GskFillNode *self2 = (GskFillNode *) node2;
if (self1->path == self2->path)
{
cairo_region_t *sub;
cairo_rectangle_int_t clip_rect;
graphene_rect_t rect;
sub = cairo_region_create();
gsk_render_node_diff (self1->child, self2->child, sub);
graphene_rect_union (&node1->bounds, &node2->bounds, &rect);
rectangle_init_from_graphene (&clip_rect, &rect);
cairo_region_intersect_rectangle (sub, &clip_rect);
cairo_region_union (region, sub);
cairo_region_destroy (sub);
}
else
{
gsk_render_node_diff_impossible (node1, node2, region);
}
}
/**
* gsk_fill_node_new:
* @child: The node to fill the area with
* @path: The path describing the area to fill
* @fill_rule: The fill rule to use
*
* Creates a `GskRenderNode` that will fill the @child in the area
* given by @path and @fill_rule.
*
* Returns: (transfer none) (type GskFillNode): A new `GskRenderNode`
*/
GskRenderNode *
gsk_fill_node_new (GskRenderNode *child,
GskPath *path,
GskFillRule fill_rule)
{
GskFillNode *self;
GskRenderNode *node;
graphene_rect_t path_bounds;
g_return_val_if_fail (GSK_IS_RENDER_NODE (child), NULL);
g_return_val_if_fail (path != NULL, NULL);
self = gsk_render_node_alloc (GSK_FILL_NODE);
node = (GskRenderNode *) self;
self->child = gsk_render_node_ref (child);
self->path = gsk_path_ref (path);
self->fill_rule = fill_rule;
if (gsk_path_get_bounds (path, &path_bounds))
graphene_rect_intersection (&path_bounds, &child->bounds, &node->bounds);
else
graphene_rect_init_from_rect (&node->bounds, graphene_rect_zero ());
return node;
}
/**
* gsk_fill_node_get_child:
* @node: (type GskFillNode): a fill `GskRenderNode`
*
* Gets the child node that is getting drawn by the given @node.
*
* Returns: (transfer none): The child that is getting drawn
**/
GskRenderNode *
gsk_fill_node_get_child (const GskRenderNode *node)
{
const GskFillNode *self = (const GskFillNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_FILL_NODE), NULL);
return self->child;
}
/**
* gsk_fill_node_get_path:
* @node: (type GskFillNode): a fill `GskRenderNode`
*
* Retrievs the path used to describe the area filled with the contents of
* the @node.
*
* Returns: (transfer none): a `GskPath`
*/
GskPath *
gsk_fill_node_get_path (const GskRenderNode *node)
{
const GskFillNode *self = (const GskFillNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_FILL_NODE), NULL);
return self->path;
}
/**
* gsk_fill_node_get_fill_rule:
* @node: (type GskFillNode): a fill `GskRenderNode`
*
* Retrievs the fill rule used to determine how the path is filled.
*
* Returns: a `GskFillRule`
*/
GskFillRule
gsk_fill_node_get_fill_rule (const GskRenderNode *node)
{
const GskFillNode *self = (const GskFillNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_FILL_NODE), GSK_FILL_RULE_WINDING);
return self->fill_rule;
}
/*** GSK_STROKE_NODE ***/
struct _GskStrokeNode
{
GskRenderNode render_node;
GskRenderNode *child;
GskPath *path;
GskStroke stroke;
};
static void
gsk_stroke_node_finalize (GskRenderNode *node)
{
GskStrokeNode *self = (GskStrokeNode *) node;
GskRenderNodeClass *parent_class = g_type_class_peek (g_type_parent (GSK_TYPE_STROKE_NODE));
gsk_render_node_unref (self->child);
gsk_path_unref (self->path);
gsk_stroke_clear (&self->stroke);
parent_class->finalize (node);
}
static void
gsk_stroke_node_draw (GskRenderNode *node,
cairo_t *cr)
{
GskStrokeNode *self = (GskStrokeNode *) node;
cairo_save (cr);
gsk_cairo_rectangle (cr, &self->child->bounds);
cairo_clip (cr);
cairo_push_group (cr);
gsk_render_node_draw (self->child, cr);
cairo_pop_group_to_source (cr);
gsk_stroke_to_cairo (&self->stroke, cr);
gsk_path_to_cairo (self->path, cr);
cairo_stroke (cr);
cairo_restore (cr);
}
static void
gsk_stroke_node_diff (GskRenderNode *node1,
GskRenderNode *node2,
cairo_region_t *region)
{
GskStrokeNode *self1 = (GskStrokeNode *) node1;
GskStrokeNode *self2 = (GskStrokeNode *) node2;
if (self1->path == self2->path &&
gsk_stroke_equal (&self1->stroke, &self2->stroke))
{
cairo_region_t *sub;
sub = cairo_region_create();
gsk_render_node_diff (self1->child, self2->child, sub);
cairo_region_union (region, sub);
cairo_region_destroy (sub);
}
else
{
gsk_render_node_diff_impossible (node1, node2, region);
}
}
/**
* gsk_stroke_node_new:
* @child: The node to stroke the area with
* @path: (transfer none): The path describing the area to stroke
* @stroke: (transfer none): The stroke attributes to use
*
* Creates a `GskRenderNode` that will stroke the @child along the given
* @path using the attributes defined in @stroke.
*
* Returns: (transfer none) (type GskStrokeNode): A new `GskRenderNode`
*/
GskRenderNode *
gsk_stroke_node_new (GskRenderNode *child,
GskPath *path,
const GskStroke *stroke)
{
GskStrokeNode *self;
GskRenderNode *node;
graphene_rect_t path_bounds;
g_return_val_if_fail (GSK_IS_RENDER_NODE (child), NULL);
g_return_val_if_fail (path != NULL, NULL);
g_return_val_if_fail (stroke != NULL, NULL);
self = gsk_render_node_alloc (GSK_STROKE_NODE);
node = (GskRenderNode *) self;
self->child = gsk_render_node_ref (child);
self->path = gsk_path_ref (path);
gsk_stroke_init_copy (&self->stroke, stroke);
if (gsk_path_get_stroke_bounds (path, stroke, &path_bounds))
graphene_rect_intersection (&path_bounds, &child->bounds, &node->bounds);
else
graphene_rect_init_from_rect (&node->bounds, graphene_rect_zero ());
return node;
}
/**
* gsk_stroke_node_get_child:
* @node: (type GskStrokeNode): a stroke `GskRenderNode`
*
* Gets the child node that is getting drawn by the given @node.
*
* Returns: (transfer none): The child that is getting drawn
**/
GskRenderNode *
gsk_stroke_node_get_child (const GskRenderNode *node)
{
const GskStrokeNode *self = (const GskStrokeNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
return self->child;
}
/**
* gsk_stroke_node_get_path:
* @node: (type GskStrokeNode): a stroke `GskRenderNode`
*
* Retrievs the path that will be stroked with the contents of
* the @node.
*
* Returns: (transfer none): a `GskPath`
*/
GskPath *
gsk_stroke_node_get_path (const GskRenderNode *node)
{
const GskStrokeNode *self = (const GskStrokeNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
return self->path;
}
/**
* gsk_stroke_node_get_stroke:
* @node: (type GskStrokeNode): a stroke `GskRenderNode`
*
* Retrievs the stroke attributes used in this @node.
*
* Returns: a `GskStroke`
*/
const GskStroke *
gsk_stroke_node_get_stroke (const GskRenderNode *node)
{
const GskStrokeNode *self = (const GskStrokeNode *) node;
g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
return &self->stroke;
}
/*** GSK_SHADOW_NODE ***/
/**
@@ -4882,8 +4547,6 @@ gsk_text_node_get_font (const GskRenderNode *node)
* Checks whether the text @node has color glyphs.
*
* Returns: %TRUE if the text node has color glyphs
*
* Since: 4.2
*/
gboolean
gsk_text_node_has_color_glyphs (const GskRenderNode *node)
@@ -5622,8 +5285,6 @@ GSK_DEFINE_RENDER_NODE_TYPE (gsk_color_matrix_node, GSK_COLOR_MATRIX_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_repeat_node, GSK_REPEAT_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_clip_node, GSK_CLIP_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_rounded_clip_node, GSK_ROUNDED_CLIP_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_fill_node, GSK_FILL_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_stroke_node, GSK_STROKE_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_shadow_node, GSK_SHADOW_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_blend_node, GSK_BLEND_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_cross_fade_node, GSK_CROSS_FADE_NODE)
@@ -5923,38 +5584,6 @@ gsk_render_node_init_types_once (void)
gsk_render_node_types[GSK_ROUNDED_CLIP_NODE] = node_type;
}
{
const GskRenderNodeTypeInfo node_info =
{
GSK_FILL_NODE,
sizeof (GskFillNode),
NULL,
gsk_fill_node_finalize,
gsk_fill_node_draw,
NULL,
gsk_fill_node_diff,
};
GType node_type = gsk_render_node_type_register_static (I_("GskFillNode"), &node_info);
gsk_render_node_types[GSK_FILL_NODE] = node_type;
}
{
const GskRenderNodeTypeInfo node_info =
{
GSK_STROKE_NODE,
sizeof (GskStrokeNode),
NULL,
gsk_stroke_node_finalize,
gsk_stroke_node_draw,
NULL,
gsk_stroke_node_diff,
};
GType node_type = gsk_render_node_type_register_static (I_("GskStrokeNode"), &node_info);
gsk_render_node_types[GSK_STROKE_NODE] = node_type;
}
{
const GskRenderNodeTypeInfo node_info =
{
+6 -354
View File
@@ -23,13 +23,9 @@
#include "gskrendernodeparserprivate.h"
#include "gskpath.h"
#include "gskpathbuilder.h"
#include "gskroundedrectprivate.h"
#include "gskrendernodeprivate.h"
#include "gskstroke.h"
#include "gsktransformprivate.h"
#include "gskenumtypes.h"
#include "gdk/gdkrgbaprivate.h"
#include "gdk/gdktextureprivate.h"
@@ -403,10 +399,7 @@ parse_string (GtkCssParser *parser,
token = gtk_css_parser_get_token (parser);
if (!gtk_css_token_is (token, GTK_CSS_TOKEN_STRING))
{
gtk_css_parser_error_syntax (parser, "Expected a string");
return FALSE;
}
return FALSE;
s = g_strdup (token->string.string);
gtk_css_parser_consume_token (parser);
@@ -962,26 +955,6 @@ create_default_render_node (void)
return gsk_color_node_new (&GDK_RGBA("FF00CC"), &GRAPHENE_RECT_INIT (0, 0, 50, 50));
}
static GskPath *
create_default_path (void)
{
GskPathBuilder *builder;
guint i;
builder = gsk_path_builder_new ();
gsk_path_builder_move_to (builder, 25, 0);
for (i = 1; i < 5; i++)
{
gsk_path_builder_line_to (builder,
sin (i * G_PI * 0.8) * 25 + 25,
-cos (i * G_PI * 0.8) * 25 + 25);
}
gsk_path_builder_close (builder);
return gsk_path_builder_free_to_path (builder);
}
static GskRenderNode *
parse_color_node (GtkCssParser *parser)
{
@@ -1129,7 +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);
@@ -1415,7 +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);
@@ -1792,208 +1765,6 @@ parse_rounded_clip_node (GtkCssParser *parser)
return result;
}
static gboolean
parse_path (GtkCssParser *parser,
gpointer out_path)
{
GskPath *path;
char *str = NULL;
if (!parse_string (parser, &str))
return FALSE;
path = gsk_path_parse (str);
g_free (str);
if (path == NULL)
{
gtk_css_parser_error_value (parser, "Invalid path");
return FALSE;
}
*((GskPath **) out_path) = path;
return TRUE;
}
static void
clear_path (gpointer inout_path)
{
g_clear_pointer ((GskPath **) inout_path, gsk_path_unref);
}
static gboolean
parse_dash (GtkCssParser *parser,
gpointer out_dash)
{
GArray *dash;
double d;
/* because CSS does this, too */
if (gtk_css_parser_try_ident (parser, "none"))
{
*((GArray **) out_dash) = NULL;
return TRUE;
}
dash = g_array_new (FALSE, FALSE, sizeof (float));
do {
if (!gtk_css_parser_consume_number (parser, &d))
{
g_array_free (dash, TRUE);
return FALSE;
}
g_array_append_vals (dash, (float[1]) { d }, 1);
} while (gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_NUMBER) ||
gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_INTEGER));
*((GArray **) out_dash) = dash;
return TRUE;
}
static void
clear_dash (gpointer inout_array)
{
g_clear_pointer ((GArray **) inout_array, g_array_unref);
}
static gboolean
parse_enum (GtkCssParser *parser,
GType type,
gpointer out_value)
{
GEnumClass *class;
GEnumValue *v;
const GtkCssToken *token;
token = gtk_css_parser_get_token (parser);
if (!gtk_css_token_is (token, GTK_CSS_TOKEN_IDENT))
{
gtk_css_parser_error_syntax (parser, "Expected a valid identifier");
return FALSE;
}
class = g_type_class_ref (type);
v = g_enum_get_value_by_nick (class, token->string.string);
if (v == NULL)
{
gtk_css_parser_error_value (parser, "\"%s\" is not a valid identifier here", token->string.string);
g_type_class_unref (class);
return FALSE;
}
*(int*)out_value = v->value;
g_type_class_unref (class);
gtk_css_parser_consume_token (parser);
return TRUE;
}
static gboolean
parse_fill_rule (GtkCssParser *parser,
gpointer out_rule)
{
return parse_enum (parser, GSK_TYPE_FILL_RULE, out_rule);
}
static GskRenderNode *
parse_fill_node (GtkCssParser *parser)
{
GskRenderNode *child = NULL;
GskPath *path = NULL;
int rule = GSK_FILL_RULE_WINDING;
const Declaration declarations[] = {
{ "child", parse_node, clear_node, &child },
{ "path", parse_path, clear_path, &path },
{ "fill-rule", parse_fill_rule, NULL, &rule },
};
GskRenderNode *result;
parse_declarations (parser, declarations, G_N_ELEMENTS (declarations));
if (child == NULL)
child = create_default_render_node ();
if (path == NULL)
path = create_default_path ();
result = gsk_fill_node_new (child, path, rule);
gsk_path_unref (path);
gsk_render_node_unref (child);
return result;
}
static gboolean
parse_line_cap (GtkCssParser *parser,
gpointer out)
{
return parse_enum (parser, GSK_TYPE_LINE_CAP, out);
}
static gboolean
parse_line_join (GtkCssParser *parser,
gpointer out)
{
return parse_enum (parser, GSK_TYPE_LINE_JOIN, out);
}
static GskRenderNode *
parse_stroke_node (GtkCssParser *parser)
{
GskRenderNode *child = NULL;
GskPath *path = NULL;
double line_width = 1.0;
int line_cap = GSK_LINE_CAP_BUTT;
int line_join = GSK_LINE_JOIN_MITER;
double miter_limit = 4.0;
GArray *dash = NULL;
double dash_offset = 0.0;
GskStroke *stroke;
const Declaration declarations[] = {
{ "child", parse_node, clear_node, &child },
{ "path", parse_path, clear_path, &path },
{ "line-width", parse_double, NULL, &line_width },
{ "line-cap", parse_line_cap, NULL, &line_cap },
{ "line-join", parse_line_join, NULL, &line_join },
{ "miter-limit", parse_double, NULL, &miter_limit },
{ "dash", parse_dash, clear_dash, &dash },
{ "dash-offset", parse_double, NULL, &dash_offset},
};
GskRenderNode *result;
parse_declarations (parser, declarations, G_N_ELEMENTS (declarations));
if (child == NULL)
child = create_default_render_node ();
if (path == NULL)
path = create_default_path ();
stroke = gsk_stroke_new (line_width);
gsk_stroke_set_line_cap (stroke, line_cap);
gsk_stroke_set_line_join (stroke, line_join);
gsk_stroke_set_miter_limit (stroke, miter_limit);
if (dash)
{
gsk_stroke_set_dash (stroke, (float *) dash->data, dash->len);
g_array_free (dash, TRUE);
}
gsk_stroke_set_dash_offset (stroke, dash_offset);
result = gsk_stroke_node_new (child, path, stroke);
gsk_path_unref (path);
gsk_stroke_free (stroke);
gsk_render_node_unref (child);
return result;
}
static GskRenderNode *
parse_shadow_node (GtkCssParser *parser)
{
@@ -2063,7 +1834,6 @@ parse_node (GtkCssParser *parser,
{ "container", parse_container_node },
{ "cross-fade", parse_cross_fade_node },
{ "debug", parse_debug_node },
{ "fill", parse_fill_node },
{ "inset-shadow", parse_inset_shadow_node },
{ "linear-gradient", parse_linear_gradient_node },
{ "radial-gradient", parse_radial_gradient_node },
@@ -2075,7 +1845,6 @@ parse_node (GtkCssParser *parser,
{ "repeating-radial-gradient", parse_repeating_radial_gradient_node },
{ "rounded-clip", parse_rounded_clip_node },
{ "shadow", parse_shadow_node },
{ "stroke", parse_stroke_node },
{ "text", parse_text_node },
{ "texture", parse_texture_node },
{ "transform", parse_transform_node },
@@ -2331,7 +2100,7 @@ append_float_param (Printer *p,
float value,
float default_value)
{
/* Don't approximate-compare here, better be too verbose */
/* Don't approximate-compare here, better be topo verbose */
if (value == default_value)
return;
@@ -2506,11 +2275,8 @@ append_escaping_newlines (GString *str,
len = strcspn (string, "\n");
g_string_append_len (str, string, len);
string += len;
if (*string)
{
g_string_append (str, "\\\n");
string++;
}
g_string_append (str, "\\\n");
string++;
} while (*string);
}
@@ -2625,83 +2391,6 @@ gsk_text_node_serialize_glyphs (GskRenderNode *node,
pango_glyph_string_free (ascii);
}
static const char *
enum_to_nick (GType type,
int value)
{
GEnumClass *class;
GEnumValue *v;
class = g_type_class_ref (type);
v = g_enum_get_value (class, value);
g_type_class_unref (class);
return v->value_nick;
}
static void
append_enum_param (Printer *p,
const char *param_name,
GType type,
int value)
{
_indent (p);
g_string_append_printf (p->str, "%s: ", param_name);
g_string_append (p->str, enum_to_nick (type, value));
g_string_append_c (p->str, ';');
g_string_append_c (p->str, '\n');
}
static void
append_path_param (Printer *p,
const char *param_name,
GskPath *path)
{
char *str, *s;
_indent (p);
g_string_append (p->str, "path: \"\\\n");
str = gsk_path_to_string (path);
/* Put each command on a new line */
for (s = str; *s; s++)
{
if (*s == ' ' &&
(s[1] == 'M' || s[1] == 'C' || s[1] == 'Z' || s[1] == 'L' || s[1] == 'O'))
*s = '\n';
}
append_escaping_newlines (p->str, str);
g_string_append (p->str, "\";\n");
g_free (str);
}
static void
append_dash_param (Printer *p,
const char *param_name,
const float *dash,
gsize n_dash)
{
_indent (p);
g_string_append (p->str, "dash: ");
if (n_dash == 0)
{
g_string_append (p->str, "none");
}
else
{
gsize i;
string_append_double (p->str, dash[0]);
for (i = 1; i < n_dash; i++)
{
g_string_append_c (p->str, ' ');
string_append_double (p->str, dash[i]);
}
}
g_string_append (p->str, ";\n");
}
static void
render_node_print (Printer *p,
GskRenderNode *node)
@@ -2850,42 +2539,6 @@ render_node_print (Printer *p,
append_rounded_rect_param (p, "clip", gsk_rounded_clip_node_get_clip (node));
append_node_param (p, "child", gsk_rounded_clip_node_get_child (node));
end_node (p);
}
break;
case GSK_FILL_NODE:
{
start_node (p, "fill");
append_node_param (p, "child", gsk_fill_node_get_child (node));
append_path_param (p, "path", gsk_fill_node_get_path (node));
append_enum_param (p, "fill-rule", GSK_TYPE_FILL_RULE, gsk_fill_node_get_fill_rule (node));
end_node (p);
}
break;
case GSK_STROKE_NODE:
{
const GskStroke *stroke;
const float *dash;
gsize n_dash;
start_node (p, "stroke");
append_node_param (p, "child", gsk_stroke_node_get_child (node));
append_path_param (p, "path", gsk_stroke_node_get_path (node));
stroke = gsk_stroke_node_get_stroke (node);
append_float_param (p, "line-width", gsk_stroke_get_line_width (stroke), 0.0f);
append_enum_param (p, "line-cap", GSK_TYPE_LINE_CAP, gsk_stroke_get_line_cap (stroke));
append_enum_param (p, "line-join", GSK_TYPE_LINE_JOIN, gsk_stroke_get_line_join (stroke));
append_float_param (p, "miter-limit", gsk_stroke_get_miter_limit (stroke), 4.0f);
dash = gsk_stroke_get_dash (stroke, &n_dash);
if (dash)
append_dash_param (p, "dash", dash, n_dash);
append_float_param (p, "dash-offset", gsk_stroke_get_dash_offset (stroke), 0.0f);
end_node (p);
}
@@ -3392,4 +3045,3 @@ gsk_render_node_serialize (GskRenderNode *node)
return g_string_free_to_bytes (p.str);
}
-208
View File
@@ -1,208 +0,0 @@
/*
* Copyright © 2002 University of Southern California
* 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
* Carl D. Worth <cworth@cworth.org>
*/
#include "config.h"
#include "gsksplineprivate.h"
#include <math.h>
/* Spline deviation from the circle in radius would be given by:
error = sqrt (x**2 + y**2) - 1
A simpler error function to work with is:
e = x**2 + y**2 - 1
From "Good approximation of circles by curvature-continuous Bezier
curves", Tor Dokken and Morten Daehlen, Computer Aided Geometric
Design 8 (1990) 22-41, we learn:
abs (max(e)) = 4/27 * sin**6(angle/4) / cos**2(angle/4)
and
abs (error) =~ 1/2 * e
Of course, this error value applies only for the particular spline
approximation that is used in _cairo_gstate_arc_segment.
*/
static float
arc_error_normalized (float angle)
{
return 2.0/27.0 * pow (sin (angle / 4), 6) / pow (cos (angle / 4), 2);
}
static float
arc_max_angle_for_tolerance_normalized (float tolerance)
{
float angle, error;
guint i;
/* Use table lookup to reduce search time in most cases. */
struct {
float angle;
float error;
} table[] = {
{ G_PI / 1.0, 0.0185185185185185036127 },
{ G_PI / 2.0, 0.000272567143730179811158 },
{ G_PI / 3.0, 2.38647043651461047433e-05 },
{ G_PI / 4.0, 4.2455377443222443279e-06 },
{ G_PI / 5.0, 1.11281001494389081528e-06 },
{ G_PI / 6.0, 3.72662000942734705475e-07 },
{ G_PI / 7.0, 1.47783685574284411325e-07 },
{ G_PI / 8.0, 6.63240432022601149057e-08 },
{ G_PI / 9.0, 3.2715520137536980553e-08 },
{ G_PI / 10.0, 1.73863223499021216974e-08 },
{ G_PI / 11.0, 9.81410988043554039085e-09 },
};
for (i = 0; i < G_N_ELEMENTS (table); i++)
{
if (table[i].error < tolerance)
return table[i].angle;
}
i++;
do {
angle = G_PI / i++;
error = arc_error_normalized (angle);
} while (error > tolerance);
return angle;
}
static guint
arc_segments_needed (float angle,
float radius,
float tolerance)
{
float max_angle;
/* the error is amplified by at most the length of the
* major axis of the circle; see cairo-pen.c for a more detailed analysis
* of this. */
max_angle = arc_max_angle_for_tolerance_normalized (tolerance / radius);
return ceil (fabs (angle) / max_angle);
}
/* We want to draw a single spline approximating a circular arc radius
R from angle A to angle B. Since we want a symmetric spline that
matches the endpoints of the arc in position and slope, we know
that the spline control points must be:
(R * cos(A), R * sin(A))
(R * cos(A) - h * sin(A), R * sin(A) + h * cos (A))
(R * cos(B) + h * sin(B), R * sin(B) - h * cos (B))
(R * cos(B), R * sin(B))
for some value of h.
"Approximation of circular arcs by cubic polynomials", Michael
Goldapp, Computer Aided Geometric Design 8 (1991) 227-238, provides
various values of h along with error analysis for each.
From that paper, a very practical value of h is:
h = 4/3 * R * tan(angle/4)
This value does not give the spline with minimal error, but it does
provide a very good approximation, (6th-order convergence), and the
error expression is quite simple, (see the comment for
_arc_error_normalized).
*/
static gboolean
gsk_spline_decompose_arc_segment (const graphene_point_t *center,
float radius,
float angle_A,
float angle_B,
GskSplineAddCurveFunc curve_func,
gpointer user_data)
{
float r_sin_A, r_cos_A;
float r_sin_B, r_cos_B;
float h;
r_sin_A = radius * sin (angle_A);
r_cos_A = radius * cos (angle_A);
r_sin_B = radius * sin (angle_B);
r_cos_B = radius * cos (angle_B);
h = 4.0/3.0 * tan ((angle_B - angle_A) / 4.0);
return curve_func ((graphene_point_t[4]) {
GRAPHENE_POINT_INIT (
center->x + r_cos_A,
center->y + r_sin_A
),
GRAPHENE_POINT_INIT (
center->x + r_cos_A - h * r_sin_A,
center->y + r_sin_A + h * r_cos_A
),
GRAPHENE_POINT_INIT (
center->x + r_cos_B + h * r_sin_B,
center->y + r_sin_B - h * r_cos_B
),
GRAPHENE_POINT_INIT (
center->x + r_cos_B,
center->y + r_sin_B
)
},
user_data);
}
gboolean
gsk_spline_decompose_arc (const graphene_point_t *center,
float radius,
float tolerance,
float start_angle,
float end_angle,
GskSplineAddCurveFunc curve_func,
gpointer user_data)
{
float step = start_angle - end_angle;
guint i, n_segments;
/* Recurse if drawing arc larger than pi */
if (ABS (step) > G_PI)
{
float mid_angle = (start_angle + end_angle) / 2.0;
return gsk_spline_decompose_arc (center, radius, tolerance, start_angle, mid_angle, curve_func, user_data)
&& gsk_spline_decompose_arc (center, radius, tolerance, mid_angle, end_angle, curve_func, user_data);
}
else if (ABS (step) < tolerance)
{
return gsk_spline_decompose_arc_segment (center, radius, start_angle, end_angle, curve_func, user_data);
}
n_segments = arc_segments_needed (ABS (step), radius, tolerance);
step = (end_angle - start_angle) / n_segments;
for (i = 0; i < n_segments - 1; i++, start_angle += step)
{
if (!gsk_spline_decompose_arc_segment (center, radius, start_angle, start_angle + step, curve_func, user_data))
return FALSE;
}
return gsk_spline_decompose_arc_segment (center, radius, start_angle, end_angle, curve_func, user_data);
}
-41
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@@ -1,41 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_SPLINE_PRIVATE_H__
#define __GSK_SPLINE_PRIVATE_H__
#include "gskpath.h"
G_BEGIN_DECLS
typedef gboolean (* GskSplineAddCurveFunc) (const graphene_point_t curve[4],
gpointer user_data);
gboolean gsk_spline_decompose_arc (const graphene_point_t *center,
float radius,
float tolerance,
float start_angle,
float end_angle,
GskSplineAddCurveFunc curve_func,
gpointer user_data);
G_END_DECLS
#endif /* __GSK_SPLINE_PRIVATE_H__ */
-458
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@@ -1,458 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gskstrokeprivate.h"
/**
* GskStroke:
*
* A `GskStroke` describes the attributes that are used when stroking a path.
*/
G_DEFINE_BOXED_TYPE (GskStroke, gsk_stroke,
gsk_stroke_copy,
gsk_stroke_free)
/**
* gsk_stroke_new:
* @line_width: line width of the stroke. Must be > 0
*
* Creates a new `GskStroke` with the given @line_width.
*
* Returns: a new `GskStroke`
**/
GskStroke *
gsk_stroke_new (float line_width)
{
GskStroke *self;
g_return_val_if_fail (line_width > 0, NULL);
self = g_new0 (GskStroke, 1);
self->line_width = line_width;
self->line_cap = GSK_LINE_CAP_BUTT;
self->line_join = GSK_LINE_JOIN_MITER;
self->miter_limit = 4.f; /* following svg */
return self;
}
/**
* gsk_stroke_copy:
* @other: `GskStroke` to copy
*
* Creates a copy of the given @other stroke.
*
* Returns: a new `GskStroke`. Use [method@Gsk.Stroke.free] to free it.
**/
GskStroke *
gsk_stroke_copy (const GskStroke *other)
{
GskStroke *self;
g_return_val_if_fail (other != NULL, NULL);
self = g_new (GskStroke, 1);
gsk_stroke_init_copy (self, other);
return self;
}
/**
* gsk_stroke_free:
* @self: a `GskStroke`
*
* Frees a `GskStroke`.
**/
void
gsk_stroke_free (GskStroke *self)
{
if (self == NULL)
return;
gsk_stroke_clear (self);
g_free (self);
}
/**
* gsk_stroke_to_cairo:
* @self: a #GskStroke
* @cr: the cairo context to configure
*
* A helper function that sets the stroke parameters
* of @cr from the values found in @self.
*/
void
gsk_stroke_to_cairo (const GskStroke *self,
cairo_t *cr)
{
cairo_set_line_width (cr, self->line_width);
/* gcc can optimize that to a direct case. This catches later additions to the enum */
switch (self->line_cap)
{
case GSK_LINE_CAP_BUTT:
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
break;
case GSK_LINE_CAP_ROUND:
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
break;
case GSK_LINE_CAP_SQUARE:
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
break;
default:
g_assert_not_reached ();
break;
}
/* gcc can optimize that to a direct case. This catches later additions to the enum */
switch (self->line_join)
{
case GSK_LINE_JOIN_MITER:
case GSK_LINE_JOIN_MITER_CLIP:
case GSK_LINE_JOIN_ARCS:
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
break;
case GSK_LINE_JOIN_ROUND:
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
break;
case GSK_LINE_JOIN_BEVEL:
cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
break;
default:
g_assert_not_reached ();
break;
}
cairo_set_miter_limit (cr, self->miter_limit);
if (self->dash_length)
{
gsize i;
double *dash = g_newa (double, self->n_dash);
for (i = 0; i < self->n_dash; i++)
{
dash[i] = self->dash[i];
}
cairo_set_dash (cr, dash, self->n_dash, self->dash_offset);
}
else
cairo_set_dash (cr, NULL, 0, 0.0);
}
/**
* gsk_stroke_equal:
* @stroke1: the first `GskStroke`
* @stroke2: the second `GskStroke`
*
* Checks if two strokes are identical.
*
* Returns: %TRUE if the two strokes are equal, %FALSE otherwise
**/
gboolean
gsk_stroke_equal (gconstpointer stroke1,
gconstpointer stroke2)
{
const GskStroke *self1 = stroke1;
const GskStroke *self2 = stroke2;
if (self1->line_width != self2->line_width ||
self1->line_cap != self2->line_cap ||
self1->line_join != self2->line_join ||
self1->miter_limit != self2->miter_limit)
return FALSE;
if (self1->n_dash != self2->n_dash)
return FALSE;
for (int i = 0; i < self1->n_dash; i++)
{
if (self1->dash[i] != self2->dash[i])
return FALSE;
}
if (self1->dash_offset != self2->dash_offset)
return FALSE;
return TRUE;
}
/**
* gsk_stroke_set_line_width:
* @self: a `GskStroke`
* @line_width: width of the line in pixels
*
* Sets the line width to be used when stroking.
*
* The line width must be > 0.
**/
void
gsk_stroke_set_line_width (GskStroke *self,
float line_width)
{
g_return_if_fail (self != NULL);
g_return_if_fail (line_width > 0);
self->line_width = line_width;
}
/**
* gsk_stroke_get_line_width:
* @self: a `GskStroke`
*
* Gets the line width used.
*
* Returns: The line width
**/
float
gsk_stroke_get_line_width (const GskStroke *self)
{
g_return_val_if_fail (self != NULL, 0.0);
return self->line_width;
}
/**
* gsk_stroke_set_line_cap:
* @self: a `GskStroke`
* @line_cap: the `GskLineCap`
*
* Sets the line cap to be used when stroking.
*
* See `GskLineCap` for details.
**/
void
gsk_stroke_set_line_cap (GskStroke *self,
GskLineCap line_cap)
{
g_return_if_fail (self != NULL);
self->line_cap = line_cap;
}
/**
* gsk_stroke_get_line_cap:
* @self: a `GskStroke`
*
* Gets the line cap used.
*
* See `GskLineCap` for details.
*
* Returns: The line cap
**/
GskLineCap
gsk_stroke_get_line_cap (const GskStroke *self)
{
g_return_val_if_fail (self != NULL, 0.0);
return self->line_cap;
}
/**
* gsk_stroke_set_line_join:
* @self: a `GskStroke`
* @line_join: The line join to use
*
* Sets the line join to be used when stroking.
*
* See `GskLineJoin` for details.
**/
void
gsk_stroke_set_line_join (GskStroke *self,
GskLineJoin line_join)
{
g_return_if_fail (self != NULL);
self->line_join = line_join;
}
/**
* gsk_stroke_get_line_join:
* @self: a `GskStroke`
*
* Gets the line join used.
*
* See `GskLineJoin` for details.
*
* Returns: The line join
**/
GskLineJoin
gsk_stroke_get_line_join (const GskStroke *self)
{
g_return_val_if_fail (self != NULL, 0.0);
return self->line_join;
}
/**
* gsk_stroke_set_miter_limit:
* @self: a `GskStroke`
* @limit: the miter limit, must be non-negative
*
* Sets the limit for the distance from the corner where sharp
* turns of joins get cut off. The miter limit is in units of
* line width.
*
* For joins of type `GSK_LINE_JOIN_MITER` that exceed the miter
* limit, the join gets rendered as if it was of type
* `GSK_LINE_JOIN_BEVEL`. For joins of type `GSK_LINE_JOIN_MITER_CLIP`,
* the miter is clipped at a distance of half the miter limit.
*/
void
gsk_stroke_set_miter_limit (GskStroke *self,
float limit)
{
g_return_if_fail (self != NULL);
g_return_if_fail (limit >= 0);
self->miter_limit = limit;
}
/**
* gsk_stroke_get_miter_limit:
* @self: a `GskStroke`
*
* Returns the miter limit of a `GskStroke`.
*/
float
gsk_stroke_get_miter_limit (const GskStroke *self)
{
g_return_val_if_fail (self != NULL, 4.f);
return self->miter_limit;
}
/**
* gsk_stroke_set_dash:
* @self: a `GskStroke`
* @dash: (array length=n_dash) (transfer none) (allow-none): the array of dashes
* @n_dash: number of elements in @dash
*
* Sets the dash pattern to use by this stroke. A dash pattern is specified by
* an array of alternating non-negative values. Each value provides the length
* of alternate "on" and "off" portions of the stroke.
*
* Each "on" segment will have caps applied as if the segment were a separate
* contour. In particular, it is valid to use an "on" length of 0 with
* `GSK_LINE_CAP_ROUND` or `GSK_LINE_CAP_SQUARE` to draw dots or squares along
* a path.
*
* If @n_dash is 0, if all elements in @dash are 0, or if there are negative
* values in @dash, then dashing is disabled.
*
* If @n_dash is 1, an alternating "on" and "off" pattern with the single
* dash length provided is assumed.
*
* If @n_dash is uneven, the dash array will be used with the first element
* in @dash defining an "on" or "off" in alternating passes through the array.
*
* You can specify a starting offset into the dash with [method@Gsk.Stroke.set_dash_offset].
**/
void
gsk_stroke_set_dash (GskStroke *self,
const float *dash,
gsize n_dash)
{
float dash_length;
gsize i;
g_return_if_fail (self != NULL);
g_return_if_fail (dash != NULL || n_dash == 0);
dash_length = 0;
for (i = 0; i < n_dash; i++)
{
if (!(dash[i] >= 0)) /* should catch NaN */
{
g_critical ("invalid value in dash array at position %zu", i);
return;
}
dash_length += dash[i];
}
self->dash_length = dash_length;
g_free (self->dash);
self->dash = g_memdup (dash, sizeof (gfloat) * n_dash);
self->n_dash = n_dash;
}
/**
* gsk_stroke_get_dash:
* @self: a `GskStroke`
* @n_dash: (out caller-allocates): number of elements
* in the array returned
*
* Gets the dash array in use or %NULL if dashing is disabled.
*
* Returns: (array length=n_dash) (transfer none) (allow-none):
* The dash array or %NULL if the dash array is empty.
**/
const float *
gsk_stroke_get_dash (const GskStroke *self,
gsize *n_dash)
{
g_return_val_if_fail (self != NULL, NULL);
g_return_val_if_fail (n_dash != NULL, NULL);
*n_dash = self->n_dash;
return self->dash;
}
/**
* gsk_stroke_set_dash_offset:
* @self: a `GskStroke`
* @offset: offset into the dash pattern
*
* Sets the offset into the dash pattern set via [method@Gsk.Stroke.set_dash]
* where dashing should begin.
*
* This is an offset into the length of the path, not an index into
* the array values of the dash array.
**/
void
gsk_stroke_set_dash_offset (GskStroke *self,
float offset)
{
g_return_if_fail (self != NULL);
self->dash_offset = offset;
}
/**
* gsk_stroke_get_dash_offset:
* @self: a `GskStroke`
*
* Returns the dash offset of a `GskStroke`.
*/
float
gsk_stroke_get_dash_offset (const GskStroke *self)
{
g_return_val_if_fail (self != NULL, 4.f);
return self->dash_offset;
}
-91
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@@ -1,91 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_STROKE_H__
#define __GSK_STROKE_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gsktypes.h>
G_BEGIN_DECLS
#define GSK_TYPE_STROKE (gsk_stroke_get_type ())
GDK_AVAILABLE_IN_ALL
GType gsk_stroke_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskStroke * gsk_stroke_new (float line_width);
GDK_AVAILABLE_IN_ALL
GskStroke * gsk_stroke_copy (const GskStroke *other);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_free (GskStroke *self);
GDK_AVAILABLE_IN_ALL
gboolean gsk_stroke_equal (gconstpointer stroke1,
gconstpointer stroke2);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_line_width (GskStroke *self,
float line_width);
GDK_AVAILABLE_IN_ALL
float gsk_stroke_get_line_width (const GskStroke *self);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_line_cap (GskStroke *self,
GskLineCap line_cap);
GDK_AVAILABLE_IN_ALL
GskLineCap gsk_stroke_get_line_cap (const GskStroke *self);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_line_join (GskStroke *self,
GskLineJoin line_join);
GDK_AVAILABLE_IN_ALL
GskLineJoin gsk_stroke_get_line_join (const GskStroke *self);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_miter_limit (GskStroke *self,
float limit);
GDK_AVAILABLE_IN_ALL
float gsk_stroke_get_miter_limit (const GskStroke *self);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_dash (GskStroke *self,
const float *dash,
gsize n_dash);
GDK_AVAILABLE_IN_ALL
const float * gsk_stroke_get_dash (const GskStroke *self,
gsize *n_dash);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_set_dash_offset (GskStroke *self,
float offset);
GDK_AVAILABLE_IN_ALL
float gsk_stroke_get_dash_offset (const GskStroke *self);
GDK_AVAILABLE_IN_ALL
void gsk_stroke_to_cairo (const GskStroke *self,
cairo_t *cr);
G_END_DECLS
#endif /* __GSK_STROKE_H__ */
-60
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@@ -1,60 +0,0 @@
/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GSK_STROKE_PRIVATE_H__
#define __GSK_STROKE_PRIVATE_H__
#include "gskstroke.h"
G_BEGIN_DECLS
struct _GskStroke
{
float line_width;
GskLineCap line_cap;
GskLineJoin line_join;
float miter_limit;
float *dash;
gsize n_dash;
float dash_length; /* sum of all dashes in the array */
float dash_offset;
};
static inline void
gsk_stroke_init_copy (GskStroke *stroke,
const GskStroke *other)
{
*stroke = *other;
stroke->dash = g_memdup (other->dash, stroke->n_dash * sizeof (float));
}
static inline void
gsk_stroke_clear (GskStroke *stroke)
{
g_clear_pointer (&stroke->dash, g_free);
stroke->n_dash = 0; /* better safe than sorry */
}
G_END_DECLS
#endif /* __GSK_STROKE_PRIVATE_H__ */
-4
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@@ -26,11 +26,7 @@
#include <gdk/gdk.h>
#include <gsk/gskenums.h>
typedef struct _GskPath GskPath;
typedef struct _GskPathBuilder GskPathBuilder;
typedef struct _GskPathMeasure GskPathMeasure;
typedef struct _GskRenderer GskRenderer;
typedef struct _GskStroke GskStroke;
typedef struct _GskTransform GskTransform;
#endif /* __GSK_TYPES_H__ */

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