62844d5f04
Bug 1014 - Clutter Animation API Improvements * clutter/Makefile.am: * clutter/clutter.h: Update the build * clutter/clutter-types.h: Add AnimationMode, an enumeration for easing functions. * clutter/clutter-alpha.[ch]: Add the :mode property to control the function bound to an Alpha instance using an enumeration value. Also add six new alpha functions: - ease-in, ease-out, ease-in-out - sine-in, sine-out, sine-in-out * clutter/clutter-deprecated.h: Deprecate the #defines for the alpha functions. They will be replaced by entries in the ClutterAnimationMode. * clutter/clutter-interval.[ch]: Add ClutterInterval, an object for defining, validating and computing an interval between two values. * clutter/clutter-animation.[ch]: Add ClutterAnimation, an object responsible for animation the properties of a single actor along an interval of values. ClutterAnimation memory management is automatic. A simple wrapper method for ClutterActor is provided: clutter_actor_animate() which will create, or update, an animation for the passed actor. * clutter/clutter-debug.h: * clutter/clutter-main.c: Add a new 'animation' debug note. * clutter/clutter-script.c: Clean up the alpha functions whitelist, and add the new functions. * doc/reference/clutter/Makefile.am: * doc/reference/clutter/clutter-sections.txt: Update the API reference. * doc/reference/clutter/clutter-animation.xml: Renamed to doc/reference/clutter/clutter-animation-tutorial.xml to avoid clashes with the ClutterAnimation section. * doc/reference/clutter/clutter-docs.sgml: Renamed to doc/reference/clutter/clutter-docs.xml, as it was an XML file and not a SGML file. * tests/Makefile.am: * tests/interactive/Makefile.am: * tests/interactive/test-animation.c: * tests/interactive/test-easing.c: Add two tests for the new simple animation API and the easing functions. * tests/interactive/test-actors.c: * tests/interactive/test-behave.c: * tests/interactive/test-depth.c: * tests/interactive/test-effects.c: * tests/interactive/test-layout.c: * tests/interactive/test-multistage.c: * tests/interactive/test-paint-wrapper.c: * tests/interactive/test-rotate.c: * tests/interactive/test-scale.c: * tests/interactive/test-texture-quality.c: * tests/interactive/test-threads.c: * tests/interactive/test-viewport.c: Update interactive tests to the deprecations and new alpha API.
1432 lines
40 KiB
C
1432 lines
40 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2008 Intel Corporation.
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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 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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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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/**
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* SECTION:clutter-animation
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* @short_description: Simple implicit animations
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*
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* #ClutterAnimation is an object providing simple, implicit animations
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* for #ClutterActor<!-- -->s.
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*
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* #ClutterAnimation instances will bind a #GObject property belonging
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* to a #ClutterActor to a #ClutterInterval, and will then use a
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* #ClutterTimeline to interpolate the property between the initial
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* and final values of the interval.
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*
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* For convenience, it is possible to use the clutter_actor_animate()
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* function call which will take care of setting up and tearing down
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* a #ClutterAnimation instance and animate an actor between its current
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* state and the specified final state.
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*
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* #ClutterAnimation is available since Clutter 1.0
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib-object.h>
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#include <gobject/gvaluecollector.h>
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#include "clutter-alpha.h"
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#include "clutter-animation.h"
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#include "clutter-debug.h"
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#include "clutter-enum-types.h"
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#include "clutter-interval.h"
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#include "clutter-private.h"
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enum
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{
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PROP_0,
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PROP_ACTOR,
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PROP_MODE,
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PROP_DURATION,
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PROP_LOOP,
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PROP_TIMELINE,
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PROP_ALPHA
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};
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enum
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{
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COMPLETED,
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LAST_SIGNAL
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};
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#define CLUTTER_ANIMATION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_ANIMATION, ClutterAnimationPrivate))
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struct _ClutterAnimationPrivate
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{
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ClutterActor *actor;
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GHashTable *properties;
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ClutterAnimationMode mode;
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guint loop : 1;
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guint duration;
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ClutterTimeline *timeline;
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guint timeline_completed_id;
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ClutterAlpha *alpha;
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guint alpha_notify_id;
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};
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static guint animation_signals[LAST_SIGNAL] = { 0, };
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static GQuark quark_actor_animation = 0;
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G_DEFINE_TYPE (ClutterAnimation, clutter_animation, G_TYPE_INITIALLY_UNOWNED);
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static void on_animation_weak_notify (gpointer data,
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GObject *animation_pointer);
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static void
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clutter_animation_finalize (GObject *gobject)
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{
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ClutterAnimationPrivate *priv = CLUTTER_ANIMATION (gobject)->priv;
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g_hash_table_destroy (priv->properties);
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G_OBJECT_CLASS (clutter_animation_parent_class)->finalize (gobject);
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}
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static void
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clutter_animation_dispose (GObject *gobject)
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{
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ClutterAnimationPrivate *priv = CLUTTER_ANIMATION (gobject)->priv;
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if (priv->actor)
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{
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g_object_weak_unref (G_OBJECT (gobject),
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on_animation_weak_notify,
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priv->actor);
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g_object_set_qdata (G_OBJECT (priv->actor),
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quark_actor_animation,
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NULL);
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g_object_unref (priv->actor);
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priv->actor = NULL;
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}
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if (priv->timeline)
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{
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if (priv->timeline_completed_id)
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{
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g_signal_handler_disconnect (priv->timeline,
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priv->timeline_completed_id);
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priv->timeline_completed_id = 0;
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}
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g_object_unref (priv->timeline);
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priv->timeline = NULL;
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}
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if (priv->alpha)
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{
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if (priv->alpha_notify_id)
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{
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g_signal_handler_disconnect (priv->alpha, priv->alpha_notify_id);
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priv->alpha_notify_id = 0;
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}
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g_object_unref (priv->alpha);
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priv->alpha = NULL;
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}
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G_OBJECT_CLASS (clutter_animation_parent_class)->dispose (gobject);
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}
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static void
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clutter_animation_set_property (GObject *gobject,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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ClutterAnimation *animation = CLUTTER_ANIMATION (gobject);
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switch (prop_id)
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{
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case PROP_ACTOR:
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clutter_animation_set_actor (animation, g_value_get_object (value));
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break;
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case PROP_MODE:
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clutter_animation_set_mode (animation, g_value_get_enum (value));
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break;
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case PROP_DURATION:
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clutter_animation_set_duration (animation, g_value_get_uint (value));
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break;
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case PROP_LOOP:
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clutter_animation_set_loop (animation, g_value_get_boolean (value));
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break;
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case PROP_TIMELINE:
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clutter_animation_set_timeline (animation, g_value_get_object (value));
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break;
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case PROP_ALPHA:
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clutter_animation_set_alpha (animation, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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clutter_animation_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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ClutterAnimationPrivate *priv = CLUTTER_ANIMATION (gobject)->priv;
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switch (prop_id)
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{
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case PROP_ACTOR:
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g_value_set_object (value, priv->actor);
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break;
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case PROP_MODE:
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g_value_set_enum (value, priv->mode);
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break;
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case PROP_DURATION:
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g_value_set_uint (value, priv->duration);
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break;
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case PROP_LOOP:
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g_value_set_boolean (value, priv->loop);
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break;
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case PROP_TIMELINE:
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g_value_set_object (value, priv->timeline);
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break;
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case PROP_ALPHA:
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g_value_set_object (value, priv->alpha);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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clutter_animation_real_completed (ClutterAnimation *animation)
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{
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CLUTTER_NOTE (ANIMATION, "Animation [%p] complete: unreffing",
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animation);
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g_object_unref (animation);
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}
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static void
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clutter_animation_class_init (ClutterAnimationClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GParamSpec *pspec;
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quark_actor_animation =
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g_quark_from_static_string ("clutter-actor-animation");
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g_type_class_add_private (klass, sizeof (ClutterAnimationPrivate));
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klass->completed = clutter_animation_real_completed;
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gobject_class->set_property = clutter_animation_set_property;
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gobject_class->get_property = clutter_animation_get_property;
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gobject_class->dispose = clutter_animation_dispose;
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gobject_class->finalize = clutter_animation_finalize;
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/**
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* ClutterAnimation:actor:
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*
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* The actor to which the animation applies.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_object ("actor",
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"Actor",
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"Actor to which the animation applies",
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CLUTTER_TYPE_ACTOR,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_ACTOR, pspec);
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/**
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* ClutterAnimation:mode:
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*
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* The animation mode.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_enum ("mode",
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"Mode",
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"The mode of the animation",
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CLUTTER_TYPE_ANIMATION_MODE,
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CLUTTER_LINEAR,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_MODE, pspec);
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/**
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* ClutterAnimation:duration:
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*
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* The duration of the animation, expressed in milliseconds.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_uint ("duration",
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"Duration",
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"Duration of the animation, in milliseconds",
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0, G_MAXUINT, 0,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_DURATION, pspec);
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/**
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* ClutterAnimation:loop:
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*
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* Whether the animation should loop.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_boolean ("loop",
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"Loop",
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"Whether the animation should loop",
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FALSE,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_LOOP, pspec);
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/**
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* ClutterAnimation:timeline:
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*
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* The #ClutterTimeline used by the animation.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_object ("timeline",
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"Timeline",
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"The timeline used by the animation",
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CLUTTER_TYPE_TIMELINE,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_TIMELINE, pspec);
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/**
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* ClutterAnimation:alpha:
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*
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* The #ClutterAlpha used by the animation.
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*
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* Since: 1.0
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*/
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pspec = g_param_spec_object ("alpha",
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"Alpha",
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"The alpha used by the animation",
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CLUTTER_TYPE_ALPHA,
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CLUTTER_PARAM_READWRITE);
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g_object_class_install_property (gobject_class, PROP_ALPHA, pspec);
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/**
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* ClutterAniamtion::completed:
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* @animation: the animation that emitted the signal
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*
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* The ::completed signal is emitted once the animation has
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* been completed.
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*
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* Since: 1.0
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*/
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animation_signals[COMPLETED] =
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g_signal_new (I_("completed"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterAnimationClass, completed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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}
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static void
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clutter_animation_init (ClutterAnimation *self)
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{
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self->priv = CLUTTER_ANIMATION_GET_PRIVATE (self);
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self->priv->mode = CLUTTER_LINEAR;
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self->priv->properties =
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g_hash_table_new_full (g_str_hash, g_str_equal,
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(GDestroyNotify) g_free,
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(GDestroyNotify) g_object_unref);
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}
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static inline void
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clutter_animation_bind_property_internal (ClutterAnimation *animation,
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GParamSpec *pspec,
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ClutterInterval *interval)
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{
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ClutterAnimationPrivate *priv = animation->priv;
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if (!clutter_interval_validate (interval, pspec))
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{
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g_warning ("Cannot bind property `%s': the interval is out "
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"of bounds",
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pspec->name);
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return;
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}
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g_hash_table_insert (priv->properties,
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g_strdup (pspec->name),
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g_object_ref_sink (interval));
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}
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static inline void
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clutter_animation_update_property_internal (ClutterAnimation *animation,
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GParamSpec *pspec,
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ClutterInterval *interval)
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{
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ClutterAnimationPrivate *priv = animation->priv;
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if (!clutter_interval_validate (interval, pspec))
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{
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g_warning ("Cannot bind property `%s': the interval is out "
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"of bounds",
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pspec->name);
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return;
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}
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g_hash_table_replace (priv->properties,
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g_strdup (pspec->name),
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g_object_ref_sink (interval));
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}
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/**
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* clutter_animation_bind_property:
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* @animation: a #ClutterAnimation
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* @property_name: the property to control
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* @interval: a #ClutterInterval
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*
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* Binds @interval to the @property_name of the #ClutterActor
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* attached to @animation. The #ClutterAnimation will take
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* ownership of the passed #ClutterInterval.
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*
|
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* If you need to update the interval instance use
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* clutter_animation_update_property() instead.
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*
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* Since: 1.0
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*/
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void
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clutter_animation_bind_property (ClutterAnimation *animation,
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const gchar *property_name,
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ClutterInterval *interval)
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{
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ClutterAnimationPrivate *priv;
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GObjectClass *klass;
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GParamSpec *pspec;
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g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
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g_return_if_fail (property_name != NULL);
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g_return_if_fail (CLUTTER_IS_INTERVAL (interval));
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priv = animation->priv;
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if (G_UNLIKELY (!priv->actor))
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{
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g_warning ("Cannot bind property `%s': the animation has no "
|
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"actor set. You need to call clutter_animation_set_actor() "
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"first to be able to bind a property",
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property_name);
|
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return;
|
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}
|
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|
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if (G_UNLIKELY (clutter_animation_has_property (animation, property_name)))
|
|
{
|
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g_warning ("Cannot bind property `%s': the animation already has "
|
|
"a bound property with the same name",
|
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property_name);
|
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return;
|
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}
|
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|
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klass = G_OBJECT_GET_CLASS (priv->actor);
|
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pspec = g_object_class_find_property (klass, property_name);
|
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if (!pspec)
|
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{
|
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g_warning ("Cannot bind property `%s': actors of type `%s' have "
|
|
"no such property",
|
|
property_name,
|
|
g_type_name (G_OBJECT_TYPE (priv->actor)));
|
|
return;
|
|
}
|
|
|
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if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("Cannot bind property `%s': the property is not writable",
|
|
property_name);
|
|
return;
|
|
}
|
|
|
|
if (!g_value_type_compatible (G_PARAM_SPEC_VALUE_TYPE (pspec),
|
|
clutter_interval_get_value_type (interval)))
|
|
{
|
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g_warning ("Cannot bind property `%s': the interval value of "
|
|
"type `%s' is not compatible with the property value "
|
|
"of type `%s'",
|
|
property_name,
|
|
g_type_name (clutter_interval_get_value_type (interval)),
|
|
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
|
|
return;
|
|
}
|
|
|
|
clutter_animation_bind_property_internal (animation, pspec, interval);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_unbind_property:
|
|
* @animation: a #ClutterAnimation
|
|
* @property_name: name of the property
|
|
*
|
|
* Removes @property_name from the list of animated properties.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_unbind_property (ClutterAnimation *animation,
|
|
const gchar *property_name)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
g_return_if_fail (property_name != NULL);
|
|
|
|
priv = animation->priv;
|
|
|
|
if (!clutter_animation_has_property (animation, property_name))
|
|
{
|
|
g_warning ("Cannot unbind property `%s': the animation has "
|
|
"no bound property with that name",
|
|
property_name);
|
|
return;
|
|
}
|
|
|
|
g_hash_table_remove (priv->properties, property_name);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_has_property:
|
|
* @animation: a #ClutterAnimation
|
|
* @property_name: name of the property
|
|
*
|
|
* Checks whether @animation is controlling @property_name.
|
|
*
|
|
* Return value: %TRUE if the property is animated by the
|
|
* #ClutterAnimation, %FALSE otherwise
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
gboolean
|
|
clutter_animation_has_property (ClutterAnimation *animation,
|
|
const gchar *property_name)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), FALSE);
|
|
g_return_val_if_fail (property_name != NULL, FALSE);
|
|
|
|
priv = animation->priv;
|
|
|
|
return g_hash_table_lookup (priv->properties, property_name) != NULL;
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_update_property:
|
|
* @animation: a #ClutterAnimation
|
|
* @property_name: name of the property
|
|
* @interval: a #ClutterInterval
|
|
*
|
|
* Changes the @interval for @property_name. The #ClutterAnimation
|
|
* will take ownership of the passed #ClutterInterval.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_update_property (ClutterAnimation *animation,
|
|
const gchar *property_name,
|
|
ClutterInterval *interval)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
GObjectClass *klass;
|
|
GParamSpec *pspec;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
g_return_if_fail (property_name != NULL);
|
|
g_return_if_fail (CLUTTER_IS_INTERVAL (interval));
|
|
|
|
priv = animation->priv;
|
|
|
|
if (!clutter_animation_has_property (animation, property_name))
|
|
{
|
|
g_warning ("Cannot unbind property `%s': the animation has "
|
|
"no bound property with that name",
|
|
property_name);
|
|
return;
|
|
}
|
|
|
|
klass = G_OBJECT_GET_CLASS (priv->actor);
|
|
pspec = g_object_class_find_property (klass, property_name);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("Cannot bind property `%s': actors of type `%s' have "
|
|
"no such property",
|
|
property_name,
|
|
g_type_name (G_OBJECT_TYPE (priv->actor)));
|
|
return;
|
|
}
|
|
|
|
if (!g_value_type_compatible (G_PARAM_SPEC_VALUE_TYPE (pspec),
|
|
clutter_interval_get_value_type (interval)))
|
|
{
|
|
g_warning ("Cannot bind property `%s': the interval value of "
|
|
"type `%s' is not compatible with the property value "
|
|
"of type `%s'",
|
|
property_name,
|
|
g_type_name (clutter_interval_get_value_type (interval)),
|
|
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
|
|
return;
|
|
}
|
|
|
|
clutter_animation_update_property_internal (animation, pspec, interval);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_interval:
|
|
* @animation: a #ClutterAnimation
|
|
* @property_name: name of the property
|
|
*
|
|
* Retrieves the #ClutterInterval associated to @property_name
|
|
* inside @animation.
|
|
*
|
|
* Return value: a #ClutterInterval or %NULL if no property with
|
|
* the same name was found. The returned interval is owned by
|
|
* the #ClutterAnimation and should not be unreferenced
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterInterval *
|
|
clutter_animation_get_interval (ClutterAnimation *animation,
|
|
const gchar *property_name)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), NULL);
|
|
g_return_val_if_fail (property_name != NULL, NULL);
|
|
|
|
priv = animation->priv;
|
|
|
|
return g_hash_table_lookup (priv->properties, property_name);
|
|
}
|
|
|
|
static void
|
|
on_timeline_completed (ClutterTimeline *timeline,
|
|
ClutterAnimation *animation)
|
|
{
|
|
CLUTTER_NOTE (ANIMATION, "Timeline [%p] complete", timeline);
|
|
|
|
if (!animation->priv->loop)
|
|
g_signal_emit (animation, animation_signals[COMPLETED], 0);
|
|
}
|
|
|
|
static void
|
|
on_alpha_notify (GObject *gobject,
|
|
GParamSpec *pspec,
|
|
ClutterAnimation *animation)
|
|
{
|
|
ClutterAnimationPrivate *priv = animation->priv;
|
|
GList *properties, *p;
|
|
guint32 alpha_value;
|
|
|
|
alpha_value = clutter_alpha_get_alpha (CLUTTER_ALPHA (gobject));
|
|
|
|
g_object_freeze_notify (G_OBJECT (priv->actor));
|
|
|
|
properties = g_hash_table_get_keys (priv->properties);
|
|
for (p = properties; p != NULL; p = p->next)
|
|
{
|
|
const gchar *p_name = p->data;
|
|
ClutterInterval *interval;
|
|
gdouble factor;
|
|
GValue value = { 0, };
|
|
|
|
interval = g_hash_table_lookup (priv->properties, p_name);
|
|
g_assert (CLUTTER_IS_INTERVAL (interval));
|
|
|
|
g_value_init (&value, clutter_interval_get_value_type (interval));
|
|
|
|
factor = (gdouble) alpha_value / CLUTTER_ALPHA_MAX_ALPHA;
|
|
clutter_interval_compute_value (interval, factor, &value);
|
|
|
|
g_object_set_property (G_OBJECT (priv->actor), p_name, &value);
|
|
|
|
g_value_unset (&value);
|
|
}
|
|
|
|
g_list_free (properties);
|
|
|
|
g_object_thaw_notify (G_OBJECT (priv->actor));
|
|
}
|
|
|
|
/*
|
|
* Removes the animation pointer from the qdata section of the
|
|
* actor attached to the animation
|
|
*/
|
|
static void
|
|
on_animation_weak_notify (gpointer data,
|
|
GObject *animation_pointer)
|
|
{
|
|
GObject *actor = data;
|
|
|
|
CLUTTER_NOTE (ANIMATION, "Removing Animation from actor %d[%p]",
|
|
clutter_actor_get_gid (CLUTTER_ACTOR (actor)),
|
|
actor);
|
|
|
|
g_object_set_qdata (actor, quark_actor_animation, NULL);
|
|
}
|
|
|
|
ClutterAnimation *
|
|
clutter_animation_new (void)
|
|
{
|
|
return g_object_new (CLUTTER_TYPE_ANIMATION, NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_actor:
|
|
* @animation: a #ClutterAnimation
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Attaches @animation to @actor. The #ClutterAnimation will take a
|
|
* reference on @actor.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_actor (ClutterAnimation *animation,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
priv = animation->priv;
|
|
|
|
if (priv->actor)
|
|
{
|
|
g_object_weak_unref (G_OBJECT (animation),
|
|
on_animation_weak_notify,
|
|
priv->actor);
|
|
g_object_set_qdata (G_OBJECT (priv->actor),
|
|
quark_actor_animation,
|
|
NULL);
|
|
g_object_unref (priv->actor);
|
|
}
|
|
|
|
priv->actor = g_object_ref (actor);
|
|
g_object_weak_ref (G_OBJECT (animation),
|
|
on_animation_weak_notify,
|
|
priv->actor);
|
|
g_object_set_qdata (G_OBJECT (priv->actor),
|
|
quark_actor_animation,
|
|
animation);
|
|
|
|
g_object_notify (G_OBJECT (animation), "actor");
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_actor:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves the #ClutterActor attached to @animation.
|
|
*
|
|
* Return value: a #ClutterActor
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterActor *
|
|
clutter_animation_get_actor (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), NULL);
|
|
|
|
return animation->priv->actor;
|
|
}
|
|
|
|
static inline void
|
|
clutter_animation_set_mode_internal (ClutterAnimation *animation)
|
|
{
|
|
ClutterAnimationPrivate *priv = animation->priv;
|
|
ClutterAlpha *alpha;
|
|
|
|
alpha = clutter_animation_get_alpha (animation);
|
|
if (alpha)
|
|
clutter_alpha_set_mode (alpha, priv->mode);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_mode:
|
|
* @animation: a #ClutterAnimation
|
|
* @mode: a #ClutterAnimationMode
|
|
*
|
|
* Sets the animation @mode of @animation.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_mode (ClutterAnimation *animation,
|
|
ClutterAnimationMode mode)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
|
|
priv = animation->priv;
|
|
|
|
priv->mode = mode;
|
|
clutter_animation_set_mode_internal (animation);
|
|
|
|
g_object_notify (G_OBJECT (animation), "mode");
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_mode:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves the animation mode of @animation.
|
|
*
|
|
* Return value: the #ClutterAnimationMode for the animation
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterAnimationMode
|
|
clutter_animation_get_mode (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), CLUTTER_LINEAR);
|
|
|
|
return animation->priv->mode;
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_duration:
|
|
* @animation: a #ClutterAnimation
|
|
* @msecs: the duration in milliseconds
|
|
*
|
|
* Sets the duration of @animation in milliseconds.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_duration (ClutterAnimation *animation,
|
|
gint msecs)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
|
|
priv = animation->priv;
|
|
|
|
priv->duration = msecs;
|
|
|
|
if (priv->timeline)
|
|
{
|
|
gboolean was_playing;
|
|
|
|
was_playing = clutter_timeline_is_playing (priv->timeline);
|
|
if (was_playing)
|
|
clutter_timeline_stop (priv->timeline);
|
|
|
|
clutter_timeline_set_duration (priv->timeline, msecs);
|
|
|
|
if (was_playing)
|
|
clutter_timeline_start (priv->timeline);
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (animation), "duration");
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_loop:
|
|
* @animation: a #ClutterAnimation
|
|
* @loop: %TRUE if the animation should loop
|
|
*
|
|
* Sets whether @animation should loop over itself once finished.
|
|
*
|
|
* A looping #ClutterAnimation will not emit the #ClutterAnimation::completed
|
|
* signal when finished.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_loop (ClutterAnimation *animation,
|
|
gboolean loop)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
|
|
priv = animation->priv;
|
|
|
|
if (priv->loop != loop)
|
|
{
|
|
priv->loop = loop;
|
|
|
|
if (priv->timeline)
|
|
clutter_timeline_set_loop (priv->timeline, priv->loop);
|
|
|
|
g_object_notify (G_OBJECT (animation), "loop");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_loop:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves whether @animation is looping.
|
|
*
|
|
* Return value: %TRUE if the animation is looping
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
gboolean
|
|
clutter_animation_get_loop (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), FALSE);
|
|
|
|
return animation->priv->loop;
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_duration:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves the duration of @animation, in milliseconds.
|
|
*
|
|
* Return value: the duration of the animation
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
guint
|
|
clutter_animation_get_duration (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), 0);
|
|
|
|
return animation->priv->duration;
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_timeline:
|
|
* @animation: a #ClutterAnimation
|
|
* @timeline: a #ClutterTimeline or %NULL
|
|
*
|
|
* Sets the #ClutterTimeline used by @animation.
|
|
*
|
|
* The #ClutterAnimation:duration and #ClutterAnimation:loop properties
|
|
* will be set using the corresponding #ClutterTimeline properties as a
|
|
* side effect.
|
|
*
|
|
* If @timeline is %NULL a new #ClutterTimeline will be constructed
|
|
* using the current values of the #ClutterAnimation:duration and
|
|
* #ClutterAnimation:loop properties.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_timeline (ClutterAnimation *animation,
|
|
ClutterTimeline *timeline)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
g_return_if_fail (timeline == NULL || CLUTTER_IS_TIMELINE (timeline));
|
|
|
|
priv = animation->priv;
|
|
|
|
g_object_freeze_notify (G_OBJECT (animation));
|
|
|
|
if (priv->timeline)
|
|
{
|
|
if (priv->timeline_completed_id)
|
|
g_signal_handler_disconnect (priv->timeline,
|
|
priv->timeline_completed_id);
|
|
|
|
g_object_unref (priv->timeline);
|
|
priv->timeline_completed_id = 0;
|
|
priv->timeline = 0;
|
|
}
|
|
|
|
if (!timeline)
|
|
timeline = g_object_new (CLUTTER_TYPE_TIMELINE,
|
|
"duration", priv->duration,
|
|
"loop", priv->loop,
|
|
NULL);
|
|
else
|
|
{
|
|
priv->duration = clutter_timeline_get_duration (timeline);
|
|
g_object_notify (G_OBJECT (animation), "duration");
|
|
|
|
priv->loop = clutter_timeline_get_loop (timeline);
|
|
g_object_notify (G_OBJECT (animation), "loop");
|
|
}
|
|
|
|
priv->timeline = g_object_ref (timeline);
|
|
g_object_notify (G_OBJECT (animation), "timeline");
|
|
|
|
priv->timeline_completed_id =
|
|
g_signal_connect (timeline, "completed",
|
|
G_CALLBACK (on_timeline_completed),
|
|
animation);
|
|
|
|
g_object_thaw_notify (G_OBJECT (animation));
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_timeline:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves the #ClutterTimeline used by @animation
|
|
*
|
|
* Return value: the timeline used by the animation
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterTimeline *
|
|
clutter_animation_get_timeline (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), NULL);
|
|
|
|
return animation->priv->timeline;
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_set_alpha:
|
|
* @animation: a #ClutterAnimation
|
|
* @alpha: a #ClutterAlpha, or %NULL
|
|
*
|
|
* Sets @alpha as the #ClutterAlpha used by @animation.
|
|
*
|
|
* If @alpha is %NULL, a new #ClutterAlpha will be constructed from
|
|
* the current values of the #ClutterAnimation:mode and
|
|
* #ClutterAnimation:timeline properties.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
clutter_animation_set_alpha (ClutterAnimation *animation,
|
|
ClutterAlpha *alpha)
|
|
{
|
|
ClutterAnimationPrivate *priv;
|
|
|
|
g_return_if_fail (CLUTTER_IS_ANIMATION (animation));
|
|
g_return_if_fail (alpha == NULL || CLUTTER_IS_ALPHA (alpha));
|
|
|
|
priv = animation->priv;
|
|
|
|
if (priv->alpha)
|
|
{
|
|
if (priv->alpha_notify_id)
|
|
g_signal_handler_disconnect (priv->alpha, priv->alpha_notify_id);
|
|
|
|
g_object_unref (priv->alpha);
|
|
priv->alpha_notify_id = 0;
|
|
priv->alpha = NULL;
|
|
}
|
|
|
|
if (!alpha)
|
|
{
|
|
ClutterTimeline *timeline;
|
|
|
|
timeline = clutter_animation_get_timeline (animation);
|
|
|
|
alpha = clutter_alpha_new ();
|
|
clutter_alpha_set_timeline (alpha, timeline);
|
|
clutter_animation_set_mode_internal (animation);
|
|
}
|
|
|
|
priv->alpha = g_object_ref_sink (alpha);
|
|
|
|
priv->alpha_notify_id =
|
|
g_signal_connect (alpha, "notify::alpha",
|
|
G_CALLBACK (on_alpha_notify),
|
|
animation);
|
|
}
|
|
|
|
/**
|
|
* clutter_animation_get_alpha:
|
|
* @animation: a #ClutterAnimation
|
|
*
|
|
* Retrieves the #ClutterAlpha used by @animation.
|
|
*
|
|
* Return value: the alpha object used by the animation
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterAlpha *
|
|
clutter_animation_get_alpha (ClutterAnimation *animation)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_ANIMATION (animation), NULL);
|
|
|
|
return animation->priv->alpha;
|
|
}
|
|
|
|
/*
|
|
* starts the timeline
|
|
*/
|
|
static void
|
|
clutter_animation_start (ClutterAnimation *animation)
|
|
{
|
|
if (animation->priv->timeline)
|
|
clutter_timeline_start (animation->priv->timeline);
|
|
else
|
|
{
|
|
/* sanity check */
|
|
g_warning (G_STRLOC ": no timeline found, unable to start the animation");
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
clutter_animation_setup_valist (ClutterAnimation *animation,
|
|
const gchar *first_property_name,
|
|
va_list var_args)
|
|
{
|
|
ClutterAnimationPrivate *priv = animation->priv;
|
|
GObjectClass *klass;
|
|
const gchar *property_name;
|
|
|
|
klass = G_OBJECT_GET_CLASS (priv->actor);
|
|
|
|
property_name = first_property_name;
|
|
while (property_name != NULL)
|
|
{
|
|
GValue final = { 0, };
|
|
GParamSpec *pspec = NULL;
|
|
gboolean is_fixed = FALSE;
|
|
gchar *error = NULL;
|
|
|
|
/* fixed properties will not be animated */
|
|
if (g_str_has_prefix (property_name, "fixed::"))
|
|
{
|
|
is_fixed = TRUE;
|
|
property_name += 7;
|
|
}
|
|
|
|
pspec = g_object_class_find_property (klass, property_name);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("Cannot bind property `%s': actors of type `%s' do "
|
|
"not have this property",
|
|
property_name,
|
|
g_type_name (G_OBJECT_TYPE (priv->actor)));
|
|
break;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("Cannot bind property `%s': the property is "
|
|
"not writable",
|
|
property_name);
|
|
break;
|
|
}
|
|
|
|
g_value_init (&final, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
|
G_VALUE_COLLECT (&final, var_args, 0, &error);
|
|
if (error)
|
|
{
|
|
g_warning ("%s: %s", G_STRLOC, error);
|
|
g_free (error);
|
|
break;
|
|
}
|
|
|
|
/* create an interval and bind it to the property, in case
|
|
* it's not a fixed property, otherwise just set it
|
|
*/
|
|
if (G_LIKELY (!is_fixed))
|
|
{
|
|
ClutterInterval *interval;
|
|
GValue initial = { 0, };
|
|
|
|
g_value_init (&initial, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
|
g_object_get_property (G_OBJECT (priv->actor),
|
|
property_name,
|
|
&initial);
|
|
|
|
interval =
|
|
clutter_interval_new_with_values (G_PARAM_SPEC_VALUE_TYPE (pspec),
|
|
&initial,
|
|
&final);
|
|
|
|
if (!clutter_animation_has_property (animation, pspec->name))
|
|
clutter_animation_bind_property_internal (animation,
|
|
pspec,
|
|
interval);
|
|
else
|
|
clutter_animation_update_property_internal (animation,
|
|
pspec,
|
|
interval);
|
|
|
|
g_value_unset (&initial);
|
|
}
|
|
else
|
|
g_object_set_property (G_OBJECT (priv->actor), property_name, &final);
|
|
|
|
g_value_unset (&final);
|
|
|
|
property_name = va_arg (var_args, gchar*);
|
|
}
|
|
|
|
/* start the animation by default */
|
|
clutter_animation_start (animation);
|
|
}
|
|
|
|
/**
|
|
* clutter_actor_animate_with_alpha:
|
|
* @actor: a #ClutterActor
|
|
* @alpha: a #ClutterAlpha
|
|
* @first_property_name: the name of a property
|
|
* @VarArgs: a %NULL terminated list of property names and
|
|
* property values
|
|
*
|
|
* Animates the given list of properties of @actor between the current
|
|
* value for each property and a new final value. The animation has a
|
|
* definite behaviour given by the passed @alpha.
|
|
*
|
|
* See clutter_actor_animate() for further details.
|
|
*
|
|
* This function is useful if you want to use an existing #ClutterAlpha
|
|
* to animate @actor.
|
|
*
|
|
* Return value: a #ClutterAnimation object. The object is owned by the
|
|
* #ClutterActor and should not be unreferenced with g_object_unref()
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterAnimation *
|
|
clutter_actor_animate_with_alpha (ClutterActor *actor,
|
|
ClutterAlpha *alpha,
|
|
const gchar *first_property_name,
|
|
...)
|
|
{
|
|
ClutterAnimation *animation;
|
|
ClutterTimeline *timeline;
|
|
va_list args;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), NULL);
|
|
g_return_val_if_fail (CLUTTER_IS_ALPHA (alpha), NULL);
|
|
g_return_val_if_fail (first_property_name != NULL, NULL);
|
|
|
|
timeline = clutter_alpha_get_timeline (alpha);
|
|
if (G_UNLIKELY (!timeline))
|
|
{
|
|
g_warning ("The passed ClutterAlpha does not have an "
|
|
"associated ClutterTimeline.");
|
|
return NULL;
|
|
}
|
|
|
|
animation = g_object_get_qdata (G_OBJECT (actor), quark_actor_animation);
|
|
if (G_LIKELY (!animation))
|
|
{
|
|
animation = clutter_animation_new ();
|
|
CLUTTER_NOTE (ANIMATION, "Created new Animation [%p]", animation);
|
|
}
|
|
else
|
|
CLUTTER_NOTE (ANIMATION, "Reusing Animation [%p]", animation);
|
|
|
|
clutter_animation_set_timeline (animation, timeline);
|
|
clutter_animation_set_alpha (animation, alpha);
|
|
clutter_animation_set_actor (animation, actor);
|
|
|
|
va_start (args, first_property_name);
|
|
clutter_animation_setup_valist (animation, first_property_name, args);
|
|
va_end (args);
|
|
|
|
return animation;
|
|
}
|
|
|
|
/**
|
|
* clutter_actor_animate_with_timeline:
|
|
* @actor: a #ClutterActor
|
|
* @mode: a #ClutterAnimationMode value
|
|
* @timeline: a #ClutterTimeline
|
|
* @first_property_name: the name of a property
|
|
* @VarArgs: a %NULL terminated list of property names and
|
|
* property values
|
|
*
|
|
* Animates the given list of properties of @actor between the current
|
|
* value for each property and a new final value. The animation has a
|
|
* definite duration given by @timeline and a speed given by the @mode.
|
|
*
|
|
* See clutter_actor_animate() for further details.
|
|
*
|
|
* This function is useful if you want to use an existing timeline
|
|
* to animate @actor.
|
|
*
|
|
* Return value: a #ClutterAnimation object. The object is owned by the
|
|
* #ClutterActor and should not be unreferenced with g_object_unref()
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterAnimation *
|
|
clutter_actor_animate_with_timeline (ClutterActor *actor,
|
|
ClutterAnimationMode mode,
|
|
ClutterTimeline *timeline,
|
|
const gchar *first_property_name,
|
|
...)
|
|
{
|
|
ClutterAnimation *animation;
|
|
va_list args;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), NULL);
|
|
g_return_val_if_fail (CLUTTER_IS_TIMELINE (timeline), NULL);
|
|
g_return_val_if_fail (first_property_name != NULL, NULL);
|
|
|
|
animation = g_object_get_qdata (G_OBJECT (actor), quark_actor_animation);
|
|
if (G_LIKELY (!animation))
|
|
{
|
|
animation = clutter_animation_new ();
|
|
CLUTTER_NOTE (ANIMATION, "Created new Animation [%p]", animation);
|
|
}
|
|
else
|
|
CLUTTER_NOTE (ANIMATION, "Reusing Animation [%p]", animation);
|
|
|
|
clutter_animation_set_timeline (animation, timeline);
|
|
clutter_animation_set_alpha (animation, NULL);
|
|
clutter_animation_set_mode (animation, mode);
|
|
clutter_animation_set_actor (animation, actor);
|
|
|
|
va_start (args, first_property_name);
|
|
clutter_animation_setup_valist (animation, first_property_name, args);
|
|
va_end (args);
|
|
|
|
return animation;
|
|
}
|
|
|
|
/**
|
|
* clutter_actor_animate:
|
|
* @actor: a #ClutterActor
|
|
* @mode: a #ClutterAnimationMode value
|
|
* @duration: duration of the animation, in milliseconds
|
|
* @first_property_name: the name of a property
|
|
* @VarArgs: a %NULL terminated list of property names and
|
|
* property values
|
|
*
|
|
* Animates the given list of properties of @actor between the current
|
|
* value for each property and a new final value. The animation has a
|
|
* definite duration and a speed given by the @mode.
|
|
*
|
|
* For example, this:
|
|
*
|
|
* |[
|
|
* clutter_actor_animate (rectangle, CLUTTER_LINEAR, 250,
|
|
* "width", 100,
|
|
* "height", 100,
|
|
* NULL);
|
|
* ]|
|
|
*
|
|
* will make width and height properties of the #ClutterActor "rectangle"
|
|
* grow linearly between the current value and 100 pixels, in 250 milliseconds.
|
|
*
|
|
* All the properties specified will be animated between the current value
|
|
* and the final value. If a property should be set at the beginning of
|
|
* the animation but not updated during the animation, it should be prefixed
|
|
* by the "fixed::" string, for instance:
|
|
*
|
|
* |[
|
|
* clutter_actor_animate (actor, CLUTTER_EASE_IN, 100,
|
|
* "rotation-angle-z", 360,
|
|
* "fixed::rotation-center-x", 100,
|
|
* "fixed::rotation-center-y", 100,
|
|
* NULL);
|
|
* ]|
|
|
*
|
|
* Will animate the "rotation-angle-z" property between the current value
|
|
* and 360 degrees, and set the "rotation-center-x" and "rotation-center-y"
|
|
* to the fixed value of 100 pixels.
|
|
*
|
|
* This function will implicitly create a #ClutterAnimation object which
|
|
* will be assigned to the @actor and will be returned to the developer
|
|
* to control the animation or to know when the animation has been
|
|
* completed.
|
|
*
|
|
* Calling this function on an actor that is already being animated
|
|
* will cause the current animation to change with the new final value.
|
|
*
|
|
* <note>Unless the animation is looping, it will become invalid as soon
|
|
* as it is complete. To avoid this, you should keep a reference on the
|
|
* returned value using g_object_ref().</note>
|
|
*
|
|
* Return value: a #ClutterAnimation object. The object is owned by the
|
|
* #ClutterActor and should not be unreferenced with g_object_unref()
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterAnimation *
|
|
clutter_actor_animate (ClutterActor *actor,
|
|
ClutterAnimationMode mode,
|
|
guint duration,
|
|
const gchar *first_property_name,
|
|
...)
|
|
{
|
|
ClutterAnimation *animation;
|
|
va_list args;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), NULL);
|
|
g_return_val_if_fail (mode != CLUTTER_CUSTOM_MODE, NULL);
|
|
g_return_val_if_fail (duration > 0, NULL);
|
|
g_return_val_if_fail (first_property_name != NULL, NULL);
|
|
|
|
animation = g_object_get_qdata (G_OBJECT (actor), quark_actor_animation);
|
|
if (G_LIKELY (!animation))
|
|
{
|
|
/* if there is no animation already attached to the actor,
|
|
* create one and set up the timeline and alpha using the
|
|
* current values for duration, mode and loop
|
|
*/
|
|
animation = clutter_animation_new ();
|
|
clutter_animation_set_timeline (animation, NULL);
|
|
clutter_animation_set_alpha (animation, NULL);
|
|
clutter_animation_set_actor (animation, actor);
|
|
|
|
CLUTTER_NOTE (ANIMATION, "Created new Animation [%p]", animation);
|
|
}
|
|
else
|
|
CLUTTER_NOTE (ANIMATION, "Reusing Animation [%p]", animation);
|
|
|
|
/* force the update of duration and mode using the new
|
|
* values coming from the parameters of this function
|
|
*/
|
|
clutter_animation_set_duration (animation, duration);
|
|
clutter_animation_set_mode (animation, mode);
|
|
|
|
va_start (args, first_property_name);
|
|
clutter_animation_setup_valist (animation, first_property_name, args);
|
|
va_end (args);
|
|
|
|
return animation;
|
|
}
|