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/*
* Copyright © 2021 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 "gtksymbolicpaintable.h"
#include "gtkenums.h"
/**
* GtkSymbolicPaintable:
*
* `GtkSymbolicPaintable` is an interface that support symbolic colors in
* paintables.
*
* `GdkPaintable`s implementing the interface will have the
* [vfunc@Gtk.SymbolicPaintable.snapshot_symbolic] function called and
* have the colors for drawing symbolic icons passed. At least 4 colors are guaranteed
* to be passed every time.
*
* These 4 colors are the foreground color, and the colors to use for errors, warnings
* and success information in that order.
*
* More colors may be added in the future.
*
* Since: 4.6
*/
G_DEFINE_INTERFACE (GtkSymbolicPaintable, gtk_symbolic_paintable, GDK_TYPE_PAINTABLE)
static void
gtk_symbolic_paintable_default_snapshot_symbolic (GtkSymbolicPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height,
const GdkRGBA *colors,
gsize n_colors)
{
gdk_paintable_snapshot (GDK_PAINTABLE (paintable), snapshot, width, height);
}
static void
gtk_symbolic_paintable_default_init (GtkSymbolicPaintableInterface *iface)
{
iface->snapshot_symbolic = gtk_symbolic_paintable_default_snapshot_symbolic;
}
/**
* gtk_symbolic_paintable_snapshot_symbolic
* @paintable: a `GtkSymbolicPaintable`
* @snapshot: a `GdkSnapshot` to snapshot to
* @width: width to snapshot in
* @height: height to snapshot in
* @colors: (array length=n_colors): a pointer to an array of colors
* @n_colors: The number of colors
*
* Snapshots the paintable with the given colors.
*
* If less than 4 colors are provided, GTK will pad the array with default
* colors.
*
* Since: 4.6
*/
void
gtk_symbolic_paintable_snapshot_symbolic (GtkSymbolicPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height,
const GdkRGBA *colors,
gsize n_colors)
{
GtkSymbolicPaintableInterface *iface;
g_return_if_fail (GTK_IS_SYMBOLIC_PAINTABLE (paintable));
g_return_if_fail (snapshot != NULL);
g_return_if_fail (colors != NULL || n_colors == 0);
if (width <= 0.0 || height <= 0.0)
return;
iface = GTK_SYMBOLIC_PAINTABLE_GET_IFACE (paintable);
if (n_colors >= 4)
{
iface->snapshot_symbolic (paintable, snapshot, width, height, colors, n_colors);
}
else
{
/* Taken from GTK3, no idea where it got those from */
GdkRGBA real_colors[4] = {
[GTK_SYMBOLIC_COLOR_FOREGROUND] = { 0.7450980392156863, 0.7450980392156863, 0.7450980392156863, 1.0 },
[GTK_SYMBOLIC_COLOR_ERROR] = { 0.796887159533074, 0, 0, 1.0 },
[GTK_SYMBOLIC_COLOR_WARNING] = { 0.9570458533607996, 0.47266346227206835, 0.2421911955443656, 1.0 },
[GTK_SYMBOLIC_COLOR_SUCCESS] = { 0.3046921492332342,0.6015716792553597, 0.023437857633325704, 1.0 }
};
memcpy (real_colors, colors, sizeof (GdkRGBA) * n_colors);
iface->snapshot_symbolic (paintable, snapshot, width, height, real_colors, 4);
}
}
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