gtk2/gtk/gtkcssdynamic.c
Benjamin Otte a721d8b78f css: Implement support for dynamic values
This adds a new GtkStyleAnimation called GtkCssDynamic (for lack of a
better name) that is spawned whenever at least one dynamic value is part
of the GtkCssStyle.
2018-03-16 06:04:43 +01:00

94 lines
2.6 KiB
C

/*
* 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"
G_DEFINE_TYPE (GtkCssDynamic, gtk_css_dynamic, GTK_TYPE_STYLE_ANIMATION)
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 = GTK_CSS_DYNAMIC (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);
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_class_init (GtkCssDynamicClass *klass)
{
GtkStyleAnimationClass *animation_class = GTK_STYLE_ANIMATION_CLASS (klass);
animation_class->advance = gtk_css_dynamic_advance;
animation_class->apply_values = gtk_css_dynamic_apply_values;
animation_class->is_finished = gtk_css_dynamic_is_finished;
animation_class->is_static = gtk_css_dynamic_is_static;
}
static void
gtk_css_dynamic_init (GtkCssDynamic *dynamic)
{
}
GtkStyleAnimation *
gtk_css_dynamic_new (gint64 timestamp)
{
GtkCssDynamic *dynamic;
dynamic = g_object_new (GTK_TYPE_CSS_DYNAMIC, NULL);
dynamic->timestamp = timestamp;
return GTK_STYLE_ANIMATION (dynamic);
}