forked from AuroraMiddleware/gtk
gtk: Add the GtkSymbolicPaintable interface
This commit is contained in:
Benjamin Otte
parent
36dd959bf9
commit
49d109c29e
@ -248,6 +248,7 @@
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#include <gtk/gtkstylecontext.h>
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#include <gtk/gtkstyleprovider.h>
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#include <gtk/gtkswitch.h>
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#include <gtk/gtksymbolicpaintable.h>
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#include <gtk/gtktext.h>
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#include <gtk/gtktextbuffer.h>
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#include <gtk/gtktextchild.h>
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112
gtk/gtksymbolicpaintable.c
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112
gtk/gtksymbolicpaintable.c
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@ -0,0 +1,112 @@
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/*
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* Copyright © 2021 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtksymbolicpaintable.h"
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/**
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* GtkSymbolicPaintable:
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*
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* `GtkSymbolicPaintable` is an interface that support symbolic colors in
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* paintables.
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*
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* `GdkPaintable`s implementing the interface will have the
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* [vfunc@Gtk.SymbolicPaintable.snapshot_symbolic] function called and
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* have the colors for drawing symbolic icons passed. At least 4 colors are guaranteed
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* to be passed every time.
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*
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* These 4 colors are the foreground color, and the colors to use for errors, warnings
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* and success information in that order.
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*
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* More colors may be added in the future.
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*/
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G_DEFINE_INTERFACE (GtkSymbolicPaintable, gtk_symbolic_paintable, GDK_TYPE_PAINTABLE)
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static void
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gtk_symbolic_paintable_default_snapshot_symbolic (GtkSymbolicPaintable *paintable,
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GdkSnapshot *snapshot,
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double width,
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double height,
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const GdkRGBA *colors,
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gsize n_colors)
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{
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gdk_paintable_snapshot (GDK_PAINTABLE (paintable), snapshot, width, height);
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}
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static void
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gtk_symbolic_paintable_default_init (GtkSymbolicPaintableInterface *iface)
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{
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iface->snapshot_symbolic = gtk_symbolic_paintable_default_snapshot_symbolic;
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}
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/**
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* gtk_symbolic_paintable_snapshot_symbolic
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* @paintable: a `GtkSymbolicPaintable`
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* @snapshot: a `GdkSnapshot` to snapshot to
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* @width: width to snapshot in
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* @height: height to snapshot in
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* @colors: (array length=n_colors): a pointer to an array of colors
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* @n_colors: The number of colors
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*
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* Snapshots the paintable with the given colors.
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*
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* If not at least 4 colors are provided, GTK will pad the array with default
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* colors.
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*/
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void
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gtk_symbolic_paintable_snapshot_symbolic (GtkSymbolicPaintable *paintable,
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GdkSnapshot *snapshot,
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double width,
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double height,
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const GdkRGBA *colors,
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gsize n_colors)
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{
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GtkSymbolicPaintableInterface *iface;
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g_return_if_fail (GTK_IS_SYMBOLIC_PAINTABLE (paintable));
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g_return_if_fail (snapshot != NULL);
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g_return_if_fail (colors != NULL || n_colors == 0);
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if (width <= 0.0 || height <= 0.0)
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return;
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iface = GTK_SYMBOLIC_PAINTABLE_GET_IFACE (paintable);
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if (n_colors >= 4)
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{
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iface->snapshot_symbolic (paintable, snapshot, width, height, colors, n_colors);
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}
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else
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{
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/* Taken from GTK3, no idea where it got those from */
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GdkRGBA fg_default = { 0.7450980392156863, 0.7450980392156863, 0.7450980392156863, 1.0 };
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GdkRGBA error_default = { 0.796887159533074, 0, 0, 1.0 };
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GdkRGBA warning_default = {0.9570458533607996, 0.47266346227206835, 0.2421911955443656, 1.0 };
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GdkRGBA success_default = { 0.3046921492332342,0.6015716792553597, 0.023437857633325704, 1.0 };
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iface->snapshot_symbolic (paintable, snapshot, width, height, (GdkRGBA[4]) {
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n_colors > 0 ? colors[0] : fg_default,
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n_colors > 1 ? colors[1] : error_default,
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n_colors > 2 ? colors[2] : warning_default,
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success_default,
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}, 4);
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}
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}
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70
gtk/gtksymbolicpaintable.h
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70
gtk/gtksymbolicpaintable.h
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@ -0,0 +1,70 @@
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/*
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* Copyright © 2021 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#ifndef __GTK_SYMBOLIC_PAINTABLE_H__
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#define __GTK_SYMBOLIC_PAINTABLE_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gtk/gtktypes.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_SYMBOLIC_PAINTABLE (gtk_symbolic_paintable_get_type ())
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GDK_AVAILABLE_IN_4_6
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G_DECLARE_INTERFACE (GtkSymbolicPaintable, gtk_symbolic_paintable, GTK, SYMBOLIC_PAINTABLE, GdkPaintable)
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/**
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* GtkSymbolicPaintableInterface:
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* @snapshot_symbolic: Snapshot the paintable using the given colors.
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* See `GtkSymbolicPaintable::snapshot_symbolic()` for details.
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* If this function is not implemented, [vfunc@Gdk.Paintable.snapshot]
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* will be called.
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*
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* The list of virtual functions for the `GtkSymbolicPaintable` interface.
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* No function must be implemented, default implementations exist for each one.
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*/
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struct _GtkSymbolicPaintableInterface
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{
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/*< private >*/
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GTypeInterface g_iface;
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/*< public >*/
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void (* snapshot_symbolic) (GtkSymbolicPaintable *paintable,
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GdkSnapshot *snapshot,
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double width,
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double height,
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const GdkRGBA *colors,
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gsize n_colors);
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};
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GDK_AVAILABLE_IN_4_6
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void gtk_symbolic_paintable_snapshot_symbolic (GtkSymbolicPaintable *paintable,
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GdkSnapshot *snapshot,
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double width,
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double height,
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const GdkRGBA *colors,
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gsize n_colors);
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G_END_DECLS
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#endif /* __GTK_SYMBOLIC_PAINTABLE_H__ */
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@ -391,6 +391,7 @@ gtk_public_sources = files([
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'gtkstylecontext.c',
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'gtkstyleprovider.c',
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'gtkswitch.c',
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'gtksymbolicpaintable.c',
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'gtktestatcontext.c',
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'gtktestutils.c',
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'gtktext.c',
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@ -663,6 +664,7 @@ gtk_public_headers = files([
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'gtkstylecontext.h',
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'gtkstyleprovider.h',
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'gtkswitch.h',
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'gtksymbolicpaintable.h',
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'gtktestatcontext.h',
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'gtktestutils.h',
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'gtktext.h',
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