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/* GTK - The GIMP Toolkit
* Copyright (C) 2014,2015 Benjamin Otte
*
* Authors: Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkrendericonprivate.h"
#include "gtkcssfiltervalueprivate.h"
#include "gtkcssimagebuiltinprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssshadowsvalueprivate.h"
#include "gtkcssstyleprivate.h"
#include "gtkcsstransformvalueprivate.h"
#include "gtkiconthemeprivate.h"
#include "gtksnapshot.h"
#include <math.h>
void
gtk_css_style_snapshot_icon (GtkCssStyle *style,
GtkSnapshot *snapshot,
double width,
double height,
GtkCssImageBuiltinType builtin_type)
{
const GtkCssValue *shadows_value, *transform_value, *filter_value;
graphene_matrix_t transform_matrix;
GtkCssImage *image;
gboolean has_shadow;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (snapshot != NULL);
if (width == 0.0 || height == 0.0)
return;
image = _gtk_css_image_value_get_image (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SOURCE));
if (image == NULL)
return;
shadows_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
transform_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
filter_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_FILTER);
if (!gtk_css_transform_value_get_matrix (transform_value, &transform_matrix))
return;
gtk_snapshot_push_debug (snapshot, "CSS Icon @ %gx%g", width, height);
gtk_css_filter_value_push_snapshot (filter_value, snapshot);
has_shadow = gtk_css_shadows_value_push_snapshot (shadows_value, snapshot);
if (graphene_matrix_is_identity (&transform_matrix))
{
gtk_css_image_builtin_snapshot (image, snapshot, width, height, builtin_type);
}
else
{
graphene_matrix_t m1, m2, m3;
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
graphene_matrix_init_translate (&m1, &GRAPHENE_POINT3D_INIT (width / 2.0, height / 2.0, 0));
graphene_matrix_multiply (&transform_matrix, &m1, &m3);
graphene_matrix_init_translate (&m2, &GRAPHENE_POINT3D_INIT (- width / 2.0, - height / 2.0, 0));
graphene_matrix_multiply (&m2, &m3, &m1);
gtk_snapshot_push_transform (snapshot, &m1);
gtk_css_image_builtin_snapshot (image, snapshot, width, height, builtin_type);
gtk_snapshot_pop (snapshot);
}
if (has_shadow)
gtk_snapshot_pop (snapshot);
gtk_css_filter_value_pop_snapshot (filter_value, snapshot);
gtk_snapshot_pop (snapshot);
}
void
gtk_css_style_snapshot_icon_paintable (GtkCssStyle *style,
GtkSnapshot *snapshot,
GdkPaintable *paintable,
double width,
double height,
gboolean recolor)
{
const GtkCssValue *shadows_value, *transform_value, *filter_value;
graphene_matrix_t transform_matrix;
gboolean has_shadow;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (snapshot != NULL);
g_return_if_fail (GDK_IS_PAINTABLE (paintable));
g_return_if_fail (width > 0);
g_return_if_fail (height > 0);
shadows_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
transform_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
filter_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_FILTER);
if (!gtk_css_transform_value_get_matrix (transform_value, &transform_matrix))
return;
gtk_css_filter_value_push_snapshot (filter_value, snapshot);
has_shadow = gtk_css_shadows_value_push_snapshot (shadows_value, snapshot);
if (recolor)
{
graphene_matrix_t color_matrix;
graphene_vec4_t color_offset;
GdkRGBA fg, sc, wc, ec;
gtk_icon_theme_lookup_symbolic_colors (style, &fg, &sc, &wc, &ec);
if (fg.alpha == 0.0f)
goto transparent;
graphene_matrix_init_from_float (&color_matrix, (float[16]) {
sc.red - fg.red, sc.green - fg.green, sc.blue - fg.blue, 0,
wc.red - fg.red, wc.green - fg.green, wc.blue - fg.blue, 0,
ec.red - fg.red, ec.green - fg.green, ec.blue - fg.blue, 0,
0, 0, 0, fg.alpha
});
graphene_vec4_init (&color_offset, fg.red, fg.green, fg.blue, 0);
gtk_snapshot_push_color_matrix (snapshot, &color_matrix, &color_offset);
}
if (graphene_matrix_is_identity (&transform_matrix))
{
gdk_paintable_snapshot (paintable, snapshot, width, height);
}
else
{
graphene_matrix_t m1, m2, m3;
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
graphene_matrix_init_translate (&m1, &GRAPHENE_POINT3D_INIT (width / 2.0, height / 2.0, 0));
graphene_matrix_multiply (&transform_matrix, &m1, &m3);
graphene_matrix_init_translate (&m2, &GRAPHENE_POINT3D_INIT (- width / 2.0, - height / 2.0, 0));
graphene_matrix_multiply (&m2, &m3, &m1);
gtk_snapshot_push_transform (snapshot, &m1);
gdk_paintable_snapshot (paintable, snapshot, width, height);
gtk_snapshot_pop (snapshot);
}
if (recolor)
gtk_snapshot_pop (snapshot);
if (has_shadow)
gtk_snapshot_pop (snapshot);
transparent:
gtk_css_filter_value_pop_snapshot (filter_value, snapshot);
}
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