125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 2011 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 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 "gtkcssimagevalueprivate.h"
|
|
|
|
#include "gtkcssimagecrossfadeprivate.h"
|
|
|
|
struct _GtkCssValue {
|
|
GTK_CSS_VALUE_BASE
|
|
GtkCssImage *image;
|
|
};
|
|
|
|
static void
|
|
gtk_css_value_image_free (GtkCssValue *value)
|
|
{
|
|
g_object_unref (value->image);
|
|
g_slice_free (GtkCssValue, value);
|
|
}
|
|
|
|
static GtkCssValue *
|
|
gtk_css_value_image_compute (GtkCssValue *value,
|
|
guint property_id,
|
|
GtkStyleProviderPrivate *provider,
|
|
GtkCssStyle *style,
|
|
GtkCssStyle *parent_style)
|
|
{
|
|
GtkCssImage *image, *computed;
|
|
|
|
image = _gtk_css_image_value_get_image (value);
|
|
|
|
if (image == NULL)
|
|
return _gtk_css_value_ref (value);
|
|
|
|
computed = _gtk_css_image_compute (image, property_id, provider, style, parent_style);
|
|
|
|
if (computed == image)
|
|
{
|
|
g_object_unref (computed);
|
|
return _gtk_css_value_ref (value);
|
|
}
|
|
|
|
return _gtk_css_image_value_new (computed);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_value_image_equal (const GtkCssValue *value1,
|
|
const GtkCssValue *value2)
|
|
{
|
|
return _gtk_css_image_equal (value1->image, value2->image);
|
|
}
|
|
|
|
static GtkCssValue *
|
|
gtk_css_value_image_transition (GtkCssValue *start,
|
|
GtkCssValue *end,
|
|
guint property_id,
|
|
double progress)
|
|
{
|
|
GtkCssImage *transition;
|
|
|
|
transition = _gtk_css_image_transition (_gtk_css_image_value_get_image (start),
|
|
_gtk_css_image_value_get_image (end),
|
|
property_id,
|
|
progress);
|
|
|
|
return _gtk_css_image_value_new (transition);
|
|
}
|
|
|
|
static void
|
|
gtk_css_value_image_print (const GtkCssValue *value,
|
|
GString *string)
|
|
{
|
|
if (value->image)
|
|
_gtk_css_image_print (value->image, string);
|
|
else
|
|
g_string_append (string, "none");
|
|
}
|
|
|
|
static const GtkCssValueClass GTK_CSS_VALUE_IMAGE = {
|
|
gtk_css_value_image_free,
|
|
gtk_css_value_image_compute,
|
|
gtk_css_value_image_equal,
|
|
gtk_css_value_image_transition,
|
|
gtk_css_value_image_print
|
|
};
|
|
|
|
GtkCssValue *
|
|
_gtk_css_image_value_new (GtkCssImage *image)
|
|
{
|
|
static GtkCssValue none_singleton = { >K_CSS_VALUE_IMAGE, 1, NULL };
|
|
GtkCssValue *value;
|
|
|
|
if (image == NULL)
|
|
return _gtk_css_value_ref (&none_singleton);
|
|
|
|
value = _gtk_css_value_new (GtkCssValue, >K_CSS_VALUE_IMAGE);
|
|
value->image = image;
|
|
|
|
return value;
|
|
}
|
|
|
|
GtkCssImage *
|
|
_gtk_css_image_value_get_image (const GtkCssValue *value)
|
|
{
|
|
g_return_val_if_fail (value->class == >K_CSS_VALUE_IMAGE, NULL);
|
|
|
|
return value->image;
|
|
}
|
|
|