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Diffstat (limited to 'clutter/clutter/clutter-transition.c')
| -rw-r--r-- | clutter/clutter/clutter-transition.c | 684 |
1 files changed, 0 insertions, 684 deletions
diff --git a/clutter/clutter/clutter-transition.c b/clutter/clutter/clutter-transition.c deleted file mode 100644 index 146c52546..000000000 --- a/clutter/clutter/clutter-transition.c +++ /dev/null @@ -1,684 +0,0 @@ -/* - * 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 - * @Title: ClutterTransition - * @Short_Description: Transition between two values - * - * #ClutterTransition is an abstract subclass of #ClutterTimeline that - * computes the interpolation between two values, stored by a #ClutterInterval. - */ - -#include "clutter-build-config.h" - -#include "clutter-transition.h" - -#include "clutter-animatable.h" -#include "clutter-debug.h" -#include "clutter-interval.h" -#include "clutter-private.h" -#include "clutter-timeline.h" - -#include <gobject/gvaluecollector.h> - -struct _ClutterTransitionPrivate -{ - ClutterInterval *interval; - ClutterAnimatable *animatable; - - guint remove_on_complete : 1; -}; - -enum -{ - PROP_0, - - PROP_INTERVAL, - PROP_ANIMATABLE, - PROP_REMOVE_ON_COMPLETE, - - PROP_LAST -}; - -static GParamSpec *obj_props[PROP_LAST] = { NULL, }; - -static GQuark quark_animatable_set = 0; - -G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (ClutterTransition, clutter_transition, CLUTTER_TYPE_TIMELINE) - -static void -clutter_transition_attach (ClutterTransition *transition, - ClutterAnimatable *animatable) -{ - CLUTTER_TRANSITION_GET_CLASS (transition)->attached (transition, animatable); -} - -static void -clutter_transition_detach (ClutterTransition *transition, - ClutterAnimatable *animatable) -{ - CLUTTER_TRANSITION_GET_CLASS (transition)->detached (transition, animatable); -} - -static void -clutter_transition_real_compute_value (ClutterTransition *transition, - ClutterAnimatable *animatable, - ClutterInterval *interval, - gdouble progress) -{ -} - -static void -clutter_transition_real_attached (ClutterTransition *transition, - ClutterAnimatable *animatable) -{ -} - -static void -clutter_transition_real_detached (ClutterTransition *transition, - ClutterAnimatable *animatable) -{ -} - -static void -clutter_transition_new_frame (ClutterTimeline *timeline, - gint elapsed G_GNUC_UNUSED) -{ - ClutterTransition *transition = CLUTTER_TRANSITION (timeline); - ClutterTransitionPrivate *priv = transition->priv; - gdouble progress; - - if (priv->interval == NULL || - priv->animatable == NULL) - return; - - progress = clutter_timeline_get_progress (timeline); - - CLUTTER_TRANSITION_GET_CLASS (timeline)->compute_value (transition, - priv->animatable, - priv->interval, - progress); -} - -static void -clutter_transition_stopped (ClutterTimeline *timeline, - gboolean is_finished) -{ - ClutterTransitionPrivate *priv = CLUTTER_TRANSITION (timeline)->priv; - - if (is_finished && - priv->animatable != NULL && - priv->remove_on_complete) - { - clutter_transition_detach (CLUTTER_TRANSITION (timeline), - priv->animatable); - g_clear_object (&priv->animatable); - } -} - -static void -clutter_transition_set_property (GObject *gobject, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - ClutterTransition *transition = CLUTTER_TRANSITION (gobject); - - switch (prop_id) - { - case PROP_INTERVAL: - clutter_transition_set_interval (transition, g_value_get_object (value)); - break; - - case PROP_ANIMATABLE: - clutter_transition_set_animatable (transition, g_value_get_object (value)); - break; - - case PROP_REMOVE_ON_COMPLETE: - clutter_transition_set_remove_on_complete (transition, g_value_get_boolean (value)); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); - break; - } -} - -static void -clutter_transition_get_property (GObject *gobject, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - ClutterTransitionPrivate *priv = CLUTTER_TRANSITION (gobject)->priv; - - switch (prop_id) - { - case PROP_INTERVAL: - g_value_set_object (value, priv->interval); - break; - - case PROP_ANIMATABLE: - g_value_set_object (value, priv->animatable); - break; - - case PROP_REMOVE_ON_COMPLETE: - g_value_set_boolean (value, priv->remove_on_complete); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); - break; - } -} - -static void -clutter_transition_dispose (GObject *gobject) -{ - ClutterTransitionPrivate *priv = CLUTTER_TRANSITION (gobject)->priv; - - if (priv->animatable != NULL) - clutter_transition_detach (CLUTTER_TRANSITION (gobject), - priv->animatable); - - g_clear_object (&priv->interval); - g_clear_object (&priv->animatable); - - G_OBJECT_CLASS (clutter_transition_parent_class)->dispose (gobject); -} - -static void -clutter_transition_class_init (ClutterTransitionClass *klass) -{ - ClutterTimelineClass *timeline_class = CLUTTER_TIMELINE_CLASS (klass); - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - - quark_animatable_set = - g_quark_from_static_string ("-clutter-transition-animatable-set"); - - klass->compute_value = clutter_transition_real_compute_value; - klass->attached = clutter_transition_real_attached; - klass->detached = clutter_transition_real_detached; - - timeline_class->new_frame = clutter_transition_new_frame; - timeline_class->stopped = clutter_transition_stopped; - - gobject_class->set_property = clutter_transition_set_property; - gobject_class->get_property = clutter_transition_get_property; - gobject_class->dispose = clutter_transition_dispose; - - /** - * ClutterTransition:interval: - * - * The #ClutterInterval used to describe the initial and final states - * of the transition. - * - * Since: 1.10 - */ - obj_props[PROP_INTERVAL] = - g_param_spec_object ("interval", - P_("Interval"), - P_("The interval of values to transition"), - CLUTTER_TYPE_INTERVAL, - G_PARAM_READWRITE | - G_PARAM_STATIC_STRINGS); - - /** - * ClutterTransition:animatable: - * - * The #ClutterAnimatable instance currently being animated. - * - * Since: 1.10 - */ - obj_props[PROP_ANIMATABLE] = - g_param_spec_object ("animatable", - P_("Animatable"), - P_("The animatable object"), - CLUTTER_TYPE_ANIMATABLE, - G_PARAM_READWRITE | - G_PARAM_STATIC_STRINGS); - - /** - * ClutterTransition:remove-on-complete: - * - * Whether the #ClutterTransition should be automatically detached - * from the #ClutterTransition:animatable instance whenever the - * #ClutterTimeline::stopped signal is emitted. - * - * The #ClutterTransition:remove-on-complete property takes into - * account the value of the #ClutterTimeline:repeat-count property, - * and it only detaches the transition if the transition is not - * repeating. - * - * Since: 1.10 - */ - obj_props[PROP_REMOVE_ON_COMPLETE] = - g_param_spec_boolean ("remove-on-complete", - P_("Remove on Complete"), - P_("Detach the transition when completed"), - FALSE, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); - - g_object_class_install_properties (gobject_class, PROP_LAST, obj_props); -} - -static void -clutter_transition_init (ClutterTransition *self) -{ - self->priv = clutter_transition_get_instance_private (self); -} - -/** - * clutter_transition_set_interval: - * @transition: a #ClutterTransition - * @interval: (allow-none): a #ClutterInterval, or %NULL - * - * Sets the #ClutterTransition:interval property using @interval. - * - * The @transition will acquire a reference on the @interval, sinking - * the floating flag on it if necessary. - * - * Since: 1.10 - */ -void -clutter_transition_set_interval (ClutterTransition *transition, - ClutterInterval *interval) -{ - ClutterTransitionPrivate *priv; - - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (interval == NULL || CLUTTER_IS_INTERVAL (interval)); - - priv = transition->priv; - - if (priv->interval == interval) - return; - - g_clear_object (&priv->interval); - - if (interval != NULL) - priv->interval = g_object_ref_sink (interval); - - g_object_notify_by_pspec (G_OBJECT (transition), obj_props[PROP_INTERVAL]); -} - -/** - * clutter_transition_get_interval: - * @transition: a #ClutterTransition - * - * Retrieves the interval set using clutter_transition_set_interval() - * - * Return value: (transfer none): a #ClutterInterval, or %NULL; the returned - * interval is owned by the #ClutterTransition and it should not be freed - * directly - * - * Since: 1.10 - */ -ClutterInterval * -clutter_transition_get_interval (ClutterTransition *transition) -{ - g_return_val_if_fail (CLUTTER_IS_TRANSITION (transition), NULL); - - return transition->priv->interval; -} - -/** - * clutter_transition_set_animatable: - * @transition: a #ClutterTransition - * @animatable: (allow-none): a #ClutterAnimatable, or %NULL - * - * Sets the #ClutterTransition:animatable property. - * - * The @transition will acquire a reference to the @animatable instance, - * and will call the #ClutterTransitionClass.attached() virtual function. - * - * If an existing #ClutterAnimatable is attached to @transition, the - * reference will be released, and the #ClutterTransitionClass.detached() - * virtual function will be called. - * - * Since: 1.10 - */ -void -clutter_transition_set_animatable (ClutterTransition *transition, - ClutterAnimatable *animatable) -{ - ClutterTransitionPrivate *priv; - ClutterActor *actor; - - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (animatable == NULL || CLUTTER_IS_ANIMATABLE (animatable)); - - priv = transition->priv; - - if (priv->animatable == animatable) - return; - - if (priv->animatable != NULL) - clutter_transition_detach (transition, priv->animatable); - - g_clear_object (&priv->animatable); - - if (animatable != NULL) - { - priv->animatable = g_object_ref (animatable); - clutter_transition_attach (transition, priv->animatable); - } - - actor = clutter_animatable_get_actor (animatable); - clutter_timeline_set_actor (CLUTTER_TIMELINE (transition), actor); -} - -/** - * clutter_transition_get_animatable: - * @transition: a #ClutterTransition - * - * Retrieves the #ClutterAnimatable set using clutter_transition_set_animatable(). - * - * Return value: (transfer none): a #ClutterAnimatable, or %NULL; the returned - * animatable is owned by the #ClutterTransition, and it should not be freed - * directly. - * - * Since: 1.10 - */ -ClutterAnimatable * -clutter_transition_get_animatable (ClutterTransition *transition) -{ - g_return_val_if_fail (CLUTTER_IS_TRANSITION (transition), NULL); - - return transition->priv->animatable; -} - -/** - * clutter_transition_set_remove_on_complete: - * @transition: a #ClutterTransition - * @remove_complete: whether to detach @transition when complete - * - * Sets whether @transition should be detached from the #ClutterAnimatable - * set using clutter_transition_set_animatable() when the - * #ClutterTimeline::completed signal is emitted. - * - * Since: 1.10 - */ -void -clutter_transition_set_remove_on_complete (ClutterTransition *transition, - gboolean remove_complete) -{ - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - - remove_complete = !!remove_complete; - - if (transition->priv->remove_on_complete == remove_complete) - return; - - transition->priv->remove_on_complete = remove_complete; - - g_object_notify_by_pspec (G_OBJECT (transition), - obj_props[PROP_REMOVE_ON_COMPLETE]); -} - -/** - * clutter_transition_get_remove_on_complete: - * @transition: a #ClutterTransition - * - * Retrieves the value of the #ClutterTransition:remove-on-complete property. - * - * Return value: %TRUE if the @transition should be detached when complete, - * and %FALSE otherwise - * - * Since: 1.10 - */ -gboolean -clutter_transition_get_remove_on_complete (ClutterTransition *transition) -{ - g_return_val_if_fail (CLUTTER_IS_TRANSITION (transition), FALSE); - - return transition->priv->remove_on_complete; -} - -typedef void (* IntervalSetFunc) (ClutterInterval *interval, - const GValue *value); - -static inline void -clutter_transition_set_value (ClutterTransition *transition, - IntervalSetFunc interval_set_func, - const GValue *value) -{ - ClutterTransitionPrivate *priv = transition->priv; - GType interval_type; - - if (priv->interval == NULL) - { - priv->interval = clutter_interval_new_with_values (G_VALUE_TYPE (value), - NULL, - NULL); - g_object_ref_sink (priv->interval); - } - - interval_type = clutter_interval_get_value_type (priv->interval); - - if (!g_type_is_a (G_VALUE_TYPE (value), interval_type)) - { - if (g_value_type_compatible (G_VALUE_TYPE (value), interval_type)) - { - interval_set_func (priv->interval, value); - return; - } - - if (g_value_type_transformable (G_VALUE_TYPE (value), interval_type)) - { - GValue transform = G_VALUE_INIT; - - g_value_init (&transform, interval_type); - if (g_value_transform (value, &transform)) - interval_set_func (priv->interval, &transform); - else - { - g_warning ("%s: Unable to convert a value of type '%s' into " - "the value type '%s' of the interval used by the " - "transition.", - G_STRLOC, - g_type_name (G_VALUE_TYPE (value)), - g_type_name (interval_type)); - } - - g_value_unset (&transform); - } - } - else - interval_set_func (priv->interval, value); -} - -/** - * clutter_transition_set_from_value: (rename-to clutter_transition_set_from) - * @transition: a #ClutterTransition - * @value: a #GValue with the initial value of the transition - * - * Sets the initial value of the transition. - * - * This is a convenience function that will either create the - * #ClutterInterval used by @transition, or will update it if - * the #ClutterTransition:interval is already set. - * - * This function will copy the contents of @value, so it is - * safe to call g_value_unset() after it returns. - * - * If @transition already has a #ClutterTransition:interval set, - * then @value must hold the same type, or a transformable type, - * as the interval's #ClutterInterval:value-type property. - * - * This function is meant to be used by language bindings. - * - * Since: 1.12 - */ -void -clutter_transition_set_from_value (ClutterTransition *transition, - const GValue *value) -{ - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (G_IS_VALUE (value)); - - clutter_transition_set_value (transition, - clutter_interval_set_initial_value, - value); -} - -/** - * clutter_transition_set_to_value: (rename-to clutter_transition_set_to) - * @transition: a #ClutterTransition - * @value: a #GValue with the final value of the transition - * - * Sets the final value of the transition. - * - * This is a convenience function that will either create the - * #ClutterInterval used by @transition, or will update it if - * the #ClutterTransition:interval is already set. - * - * This function will copy the contents of @value, so it is - * safe to call g_value_unset() after it returns. - * - * If @transition already has a #ClutterTransition:interval set, - * then @value must hold the same type, or a transformable type, - * as the interval's #ClutterInterval:value-type property. - * - * This function is meant to be used by language bindings. - * - * Since: 1.12 - */ -void -clutter_transition_set_to_value (ClutterTransition *transition, - const GValue *value) -{ - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (G_IS_VALUE (value)); - - clutter_transition_set_value (transition, - clutter_interval_set_final_value, - value); -} - -/** - * clutter_transition_set_from: (skip) - * @transition: a #ClutterTransition - * @value_type: the type of the value to set - * @...: the initial value - * - * Sets the initial value of the transition. - * - * This is a convenience function that will either create the - * #ClutterInterval used by @transition, or will update it if - * the #ClutterTransition:interval is already set. - * - * If @transition already has a #ClutterTransition:interval set, - * then @value must hold the same type, or a transformable type, - * as the interval's #ClutterInterval:value-type property. - * - * This is a convenience function for the C API; language bindings - * should use clutter_transition_set_from_value() instead. - * - * Since: 1.12 - */ -void -clutter_transition_set_from (ClutterTransition *transition, - GType value_type, - ...) -{ - GValue value = G_VALUE_INIT; - gchar *error = NULL; - va_list args; - - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (value_type != G_TYPE_INVALID); - - va_start (args, value_type); - - G_VALUE_COLLECT_INIT (&value, value_type, args, 0, &error); - - va_end (args); - - if (error != NULL) - { - g_warning ("%s: %s", G_STRLOC, error); - g_free (error); - return; - } - - clutter_transition_set_value (transition, - clutter_interval_set_initial_value, - &value); - - g_value_unset (&value); -} - -/** - * clutter_transition_set_to: (skip) - * @transition: a #ClutterTransition - * @value_type: the type of the value to set - * @...: the final value - * - * Sets the final value of the transition. - * - * This is a convenience function that will either create the - * #ClutterInterval used by @transition, or will update it if - * the #ClutterTransition:interval is already set. - * - * If @transition already has a #ClutterTransition:interval set, - * then @value must hold the same type, or a transformable type, - * as the interval's #ClutterInterval:value-type property. - * - * This is a convenience function for the C API; language bindings - * should use clutter_transition_set_to_value() instead. - * - * Since: 1.12 - */ -void -clutter_transition_set_to (ClutterTransition *transition, - GType value_type, - ...) -{ - GValue value = G_VALUE_INIT; - gchar *error = NULL; - va_list args; - - g_return_if_fail (CLUTTER_IS_TRANSITION (transition)); - g_return_if_fail (value_type != G_TYPE_INVALID); - - va_start (args, value_type); - - G_VALUE_COLLECT_INIT (&value, value_type, args, 0, &error); - - va_end (args); - - if (error != NULL) - { - g_warning ("%s: %s", G_STRLOC, error); - g_free (error); - return; - } - - clutter_transition_set_value (transition, - clutter_interval_set_final_value, - &value); - - g_value_unset (&value); -} |