forked from AuroraMiddleware/gtk
a970ba5ef6
Because of our port of css animation and css transition to progress tracker, we should not think of animated styles as immutable objects that can map any timestamp to css values. Rather, timestamps can correspond to different values depending on the value of GTK_SLOWDOWN over the course of the animation. To keep animated styles and style animations totally immutable, we will not share styleanimations between animatedstyles, and make a new copy of a styleanimation for each timestamp.
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/*
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* Copyright © 2012 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkstyleanimationprivate.h"
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G_DEFINE_ABSTRACT_TYPE (GtkStyleAnimation, _gtk_style_animation, G_TYPE_OBJECT)
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static GtkStyleAnimation *
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gtk_style_animation_real_advance (GtkStyleAnimation *animation,
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gint64 timestamp)
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{
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return NULL;
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}
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static void
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gtk_style_animation_real_apply_values (GtkStyleAnimation *animation,
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GtkCssAnimatedStyle *style)
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{
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}
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static gboolean
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gtk_style_animation_real_is_finished (GtkStyleAnimation *animation)
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{
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return TRUE;
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}
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static gboolean
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gtk_style_animation_real_is_static (GtkStyleAnimation *animation)
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{
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return FALSE;
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}
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static void
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_gtk_style_animation_class_init (GtkStyleAnimationClass *klass)
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{
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klass->advance = gtk_style_animation_real_advance;
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klass->apply_values = gtk_style_animation_real_apply_values;
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klass->is_finished = gtk_style_animation_real_is_finished;
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klass->is_static = gtk_style_animation_real_is_static;
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}
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static void
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_gtk_style_animation_init (GtkStyleAnimation *animation)
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{
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}
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GtkStyleAnimation *
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_gtk_style_animation_advance (GtkStyleAnimation *animation,
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gint64 timestamp)
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{
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GtkStyleAnimationClass *klass;
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g_return_val_if_fail (GTK_IS_STYLE_ANIMATION (animation), NULL);
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klass = GTK_STYLE_ANIMATION_GET_CLASS (animation);
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return klass->advance (animation, timestamp);
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}
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void
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_gtk_style_animation_apply_values (GtkStyleAnimation *animation,
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GtkCssAnimatedStyle *style)
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{
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GtkStyleAnimationClass *klass;
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g_return_if_fail (GTK_IS_STYLE_ANIMATION (animation));
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g_return_if_fail (GTK_IS_CSS_ANIMATED_STYLE (style));
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klass = GTK_STYLE_ANIMATION_GET_CLASS (animation);
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klass->apply_values (animation, style);
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}
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gboolean
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_gtk_style_animation_is_finished (GtkStyleAnimation *animation)
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{
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GtkStyleAnimationClass *klass;
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g_return_val_if_fail (GTK_IS_STYLE_ANIMATION (animation), TRUE);
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klass = GTK_STYLE_ANIMATION_GET_CLASS (animation);
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return klass->is_finished (animation);
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}
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/**
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* _gtk_style_animation_is_static:
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* @animation: The animation to query
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* @at_time_us: The timestamp to query for
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*
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* Checks if @animation will not change its values anymore after
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* @at_time_us. This happens for example when the animation has reached its
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* final value or when it has been paused.
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*
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* Returns: %TRUE if @animation will not change anymore after @at_time_us
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**/
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gboolean
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_gtk_style_animation_is_static (GtkStyleAnimation *animation)
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{
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GtkStyleAnimationClass *klass;
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g_return_val_if_fail (GTK_IS_STYLE_ANIMATION (animation), TRUE);
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klass = GTK_STYLE_ANIMATION_GET_CLASS (animation);
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return klass->is_static (animation);
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}
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