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-rw-r--r--clutter/clutter/clutter-transition-group.c251
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diff --git a/clutter/clutter/clutter-transition-group.c b/clutter/clutter/clutter-transition-group.c
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--- a/clutter/clutter/clutter-transition-group.c
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-/*
- * Clutter.
- *
- * An OpenGL based 'interactive canvas' library.
- *
- * Copyright (C) 2012 Intel Corporation
- *
- * 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/>.
- *
- * Author: Emmanuele Bassi <ebassi@linux.intel.com>
- */
-
-/**
- * SECTION:clutter-transition-group
- * @Title: ClutterTransitionGroup
- * @Short_Description: Group transitions together
- *
- * The #ClutterTransitionGroup allows running multiple #ClutterTransition
- * instances concurrently.
- *
- * The transitions inside a group will run within the boundaries of the
- * group; for instance, if a transition has a duration of 10 seconds, and
- * the group that contains it has a duration of 5 seconds, only the first
- * 5 seconds of the transition will be played.
- *
- * #ClutterTransitionGroup is available since Clutter 1.12
- */
-
-#include "clutter-build-config.h"
-
-#include "clutter-transition-group.h"
-
-#include "clutter-debug.h"
-#include "clutter-private.h"
-#include "clutter-timeline-private.h"
-
-struct _ClutterTransitionGroupPrivate
-{
- GHashTable *transitions;
-};
-
-G_DEFINE_TYPE_WITH_PRIVATE (ClutterTransitionGroup, clutter_transition_group, CLUTTER_TYPE_TRANSITION)
-
-static void
-clutter_transition_group_new_frame (ClutterTimeline *timeline,
- gint elapsed)
-{
- ClutterTransitionGroupPrivate *priv;
- GHashTableIter iter;
- gpointer element;
- gint64 msecs;
-
- priv = CLUTTER_TRANSITION_GROUP (timeline)->priv;
-
- /* get the time elapsed since the last ::new-frame... */
- msecs = clutter_timeline_get_delta (timeline);
-
- g_hash_table_iter_init (&iter, priv->transitions);
- while (g_hash_table_iter_next (&iter, &element, NULL))
- {
- ClutterTimeline *t = element;
-
- /* ... and advance every timeline */
- clutter_timeline_set_direction (t, clutter_timeline_get_direction (timeline));
- clutter_timeline_set_duration (t, clutter_timeline_get_duration (timeline));
-
- _clutter_timeline_advance (t, msecs);
- }
-}
-
-static void
-clutter_transition_group_attached (ClutterTransition *transition,
- ClutterAnimatable *animatable)
-{
- ClutterTransitionGroupPrivate *priv;
- GHashTableIter iter;
- gpointer element;
-
- priv = CLUTTER_TRANSITION_GROUP (transition)->priv;
-
- g_hash_table_iter_init (&iter, priv->transitions);
- while (g_hash_table_iter_next (&iter, &element, NULL))
- {
- ClutterTransition *t = element;
-
- clutter_transition_set_animatable (t, animatable);
- }
-}
-
-static void
-clutter_transition_group_detached (ClutterTransition *transition,
- ClutterAnimatable *animatable)
-{
- ClutterTransitionGroupPrivate *priv;
- GHashTableIter iter;
- gpointer element;
-
- priv = CLUTTER_TRANSITION_GROUP (transition)->priv;
-
- g_hash_table_iter_init (&iter, priv->transitions);
- while (g_hash_table_iter_next (&iter, &element, NULL))
- {
- ClutterTransition *t = element;
-
- clutter_transition_set_animatable (t, NULL);
- }
-}
-
-static void
-clutter_transition_group_started (ClutterTimeline *timeline)
-{
- ClutterTransitionGroupPrivate *priv;
- GHashTableIter iter;
- gpointer element;
-
- priv = CLUTTER_TRANSITION_GROUP (timeline)->priv;
-
- g_hash_table_iter_init (&iter, priv->transitions);
- while (g_hash_table_iter_next (&iter, &element, NULL))
- {
- ClutterTransition *t = element;
-
- g_signal_emit_by_name (t, "started");
- }
-}
-
-static void
-clutter_transition_group_finalize (GObject *gobject)
-{
- ClutterTransitionGroupPrivate *priv;
-
- priv = CLUTTER_TRANSITION_GROUP (gobject)->priv;
-
- g_hash_table_unref (priv->transitions);
-
- G_OBJECT_CLASS (clutter_transition_group_parent_class)->finalize (gobject);
-}
-
-static void
-clutter_transition_group_class_init (ClutterTransitionGroupClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- ClutterTimelineClass *timeline_class = CLUTTER_TIMELINE_CLASS (klass);
- ClutterTransitionClass *transition_class = CLUTTER_TRANSITION_CLASS (klass);
-
- gobject_class->finalize = clutter_transition_group_finalize;
-
- timeline_class->started = clutter_transition_group_started;
- timeline_class->new_frame = clutter_transition_group_new_frame;
-
- transition_class->attached = clutter_transition_group_attached;
- transition_class->detached = clutter_transition_group_detached;
-}
-
-static void
-clutter_transition_group_init (ClutterTransitionGroup *self)
-{
- self->priv = clutter_transition_group_get_instance_private (self);
- self->priv->transitions =
- g_hash_table_new_full (NULL, NULL, (GDestroyNotify) g_object_unref, NULL);
-}
-
-/**
- * clutter_transition_group_new:
- *
- * Creates a new #ClutterTransitionGroup instance.
- *
- * Return value: the newly created #ClutterTransitionGroup. Use
- * g_object_unref() when done to deallocate the resources it
- * uses
- *
- * Since: 1.12
- */
-ClutterTransition *
-clutter_transition_group_new (void)
-{
- return g_object_new (CLUTTER_TYPE_TRANSITION_GROUP, NULL);
-}
-
-/**
- * clutter_transition_group_add_transition:
- * @group: a #ClutterTransitionGroup
- * @transition: a #ClutterTransition
- *
- * Adds @transition to @group.
- *
- * This function acquires a reference on @transition that will be released
- * when calling clutter_transition_group_remove_transition().
- *
- * Since: 1.12
- */
-void
-clutter_transition_group_add_transition (ClutterTransitionGroup *group,
- ClutterTransition *transition)
-{
- g_return_if_fail (CLUTTER_IS_TRANSITION_GROUP (group));
- g_return_if_fail (CLUTTER_IS_TRANSITION (transition));
-
- g_hash_table_add (group->priv->transitions, g_object_ref (transition));
-}
-
-/**
- * clutter_transition_group_remove_transition:
- * @group: a #ClutterTransitionGroup
- * @transition: a #ClutterTransition
- *
- * Removes @transition from @group.
- *
- * This function releases the reference acquired on @transition when
- * calling clutter_transition_group_add_transition().
- *
- * Since: 1.12
- */
-void
-clutter_transition_group_remove_transition (ClutterTransitionGroup *group,
- ClutterTransition *transition)
-{
- g_return_if_fail (CLUTTER_IS_TRANSITION_GROUP (group));
-
- g_hash_table_remove (group->priv->transitions, transition);
-}
-
-/**
- * clutter_transition_group_remove_all:
- * @group: a #ClutterTransitionGroup
- *
- * Removes all transitions from @group.
- *
- * This function releases the reference acquired when calling
- * clutter_transition_group_add_transition().
- *
- * Since: 1.12
- */
-void
-clutter_transition_group_remove_all (ClutterTransitionGroup *group)
-{
- g_return_if_fail (CLUTTER_IS_TRANSITION_GROUP (group));
-
- g_hash_table_remove_all (group->priv->transitions);
-}
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