gtk2/gtk/gtkcssdynamic.c

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/*
* Copyright © 2018 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: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcssdynamicprivate.h"
#include "gtkprogresstrackerprivate.h"
struct _GtkCssDynamic
{
GtkStyleAnimation parent;
gint64 timestamp;
};
static GtkStyleAnimation *
gtk_css_dynamic_advance (GtkStyleAnimation *style_animation,
gint64 timestamp)
{
return gtk_css_dynamic_new (timestamp);
}
static void
gtk_css_dynamic_apply_values (GtkStyleAnimation *style_animation,
GtkCssAnimatedStyle *style)
{
GtkCssDynamic *dynamic = (GtkCssDynamic *)style_animation;
guint i;
for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++)
{
GtkCssValue *value, *dynamic_value;
value = gtk_css_style_get_value (GTK_CSS_STYLE (style), i);
dynamic_value = gtk_css_value_get_dynamic_value (value, dynamic->timestamp);
if (value != dynamic_value)
gtk_css_animated_style_set_animated_value (style, i, dynamic_value);
else
gtk_css_value_unref (dynamic_value);
}
}
static gboolean
gtk_css_dynamic_is_finished (GtkStyleAnimation *style_animation)
{
return FALSE;
}
static gboolean
gtk_css_dynamic_is_static (GtkStyleAnimation *style_animation)
{
return FALSE;
}
static void
gtk_css_dynamic_free (GtkStyleAnimation *animation)
{
g_slice_free (GtkCssDynamic, (GtkCssDynamic *)animation);
}
static const GtkStyleAnimationClass GTK_CSS_DYNAMIC_CLASS = {
"GtkCssDynamic",
gtk_css_dynamic_free,
gtk_css_dynamic_is_finished,
gtk_css_dynamic_is_static,
gtk_css_dynamic_apply_values,
gtk_css_dynamic_advance,
};
GtkStyleAnimation *
gtk_css_dynamic_new (gint64 timestamp)
{
GtkCssDynamic *dynamic = g_slice_alloc (sizeof (GtkCssDynamic));
dynamic->parent.class = &GTK_CSS_DYNAMIC_CLASS;
dynamic->parent.ref_count = 1;
dynamic->timestamp = timestamp;
return (GtkStyleAnimation *)dynamic;
}