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actor: Make :content-gravity animatable

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Let's start making some non-trivial property animatable, like the
content gravity.
This commit is contained in:
Emmanuele Bassi 2012-03-29 13:53:40 +01:00
parent 2c46baf30c
commit 499534f3ac
2 changed files with 79 additions and 8 deletions
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85
clutter/clutter-actor.c
View File

@ -705,6 +705,7 @@ struct _ClutterActorPrivate
/* delegate object used to paint the contents of this actor */
ClutterContent *content;
ClutterActorBox content_box;
ClutterContentGravity content_gravity;
ClutterScalingFilter min_filter;
ClutterScalingFilter mag_filter;
@ -768,6 +769,7 @@ struct _ClutterActorPrivate
queued without an effect. */
guint is_dirty : 1;
guint bg_color_set : 1;
guint content_box_valid : 1;
};
enum
@ -2259,7 +2261,10 @@ clutter_actor_set_allocation_internal (ClutterActor *self,
/* if the allocation changes, so does the content box */
if (priv->content != NULL)
g_object_notify_by_pspec (obj, obj_props[PROP_CONTENT_BOX]);
{
priv->content_box_valid = FALSE;
g_object_notify_by_pspec (obj, obj_props[PROP_CONTENT_BOX]);
}
retval = TRUE;
}
@ -6443,6 +6448,8 @@ clutter_actor_class_init (ClutterActorClass *klass)
* that have a preferred size, and if the preferred size is smaller than
* the actor's allocation.
*
* The #ClutterActor:content-gravity property is animatable.
*
* Since: 1.10
*/
obj_props[PROP_CONTENT_GRAVITY] =
@ -6471,7 +6478,9 @@ clutter_actor_class_init (ClutterActorClass *klass)
P_("Content Box"),
P_("The bounding box of the actor's content"),
CLUTTER_TYPE_ACTOR_BOX,
CLUTTER_PARAM_READABLE);
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS |
CLUTTER_PARAM_ANIMATABLE);
obj_props[PROP_MINIFICATION_FILTER] =
g_param_spec_enum ("minification-filter",
@ -12320,6 +12329,23 @@ clutter_actor_set_anchor_point_from_gravity (ClutterActor *self,
}
}
static void
clutter_actor_store_content_box (ClutterActor *self,
const ClutterActorBox *box)
{
if (box != NULL)
{
self->priv->content_box = *box;
self->priv->content_box_valid = TRUE;
}
else
self->priv->content_box_valid = FALSE;
clutter_actor_queue_redraw (self);
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_CONTENT_BOX]);
}
static void
clutter_container_iface_init (ClutterContainerIface *iface)
{
@ -13005,6 +13031,10 @@ clutter_actor_set_animatable_property (ClutterActor *actor,
g_value_get_double (value));
break;
case PROP_CONTENT_BOX:
clutter_actor_store_content_box (actor, g_value_get_boxed (value));
break;
default:
g_object_set_property (obj, pspec->name, value);
break;
@ -17002,9 +17032,12 @@ transition_closure_free (gpointer data)
if (G_LIKELY (data != NULL))
{
TransitionClosure *clos = data;
ClutterTimeline *timeline;
if (clutter_timeline_is_playing (CLUTTER_TIMELINE (clos->transition)))
clutter_timeline_stop (CLUTTER_TIMELINE (clos->transition));
timeline = CLUTTER_TIMELINE (clos->transition);
if (clutter_timeline_is_playing (timeline))
clutter_timeline_stop (timeline);
g_signal_handler_disconnect (clos->transition, clos->completed_id);
@ -17022,6 +17055,9 @@ on_transition_completed (ClutterTransition *transition,
ClutterActor *actor = clos->actor;
ClutterAnimationInfo *info;
/* reset the caches used by animations */
clutter_actor_store_content_box (actor, NULL);
info = _clutter_actor_get_animation_info (actor);
/* this will take care of cleaning clos for us */
@ -17787,6 +17823,8 @@ clutter_actor_get_content (ClutterActor *self)
* See the description of the #ClutterActor:content-gravity property for
* more information.
*
* The #ClutterActor:content-gravity property is animatable.
*
* Since: 1.10
*/
void
@ -17802,12 +17840,37 @@ clutter_actor_set_content_gravity (ClutterActor *self,
if (priv->content_gravity == gravity)
return;
priv->content_gravity = gravity;
priv->content_box_valid = FALSE;
if (_clutter_actor_get_transition (self, obj_props[PROP_CONTENT_BOX]) == NULL)
{
ClutterActorBox from_box, to_box;
clutter_actor_get_content_box (self, &from_box);
priv->content_gravity = gravity;
clutter_actor_get_content_box (self, &to_box);
_clutter_actor_create_transition (self, obj_props[PROP_CONTENT_BOX],
&from_box,
&to_box);
}
else
{
ClutterActorBox to_box;
priv->content_gravity = gravity;
clutter_actor_get_content_box (self, &to_box);
_clutter_actor_update_transition (self, obj_props[PROP_CONTENT_BOX],
&to_box);
}
clutter_actor_queue_redraw (self);
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_CONTENT_GRAVITY]);
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_CONTENT_BOX]);
}
/**
@ -17870,13 +17933,19 @@ clutter_actor_get_content_box (ClutterActor *self,
box->x2 = priv->allocation.x2 - priv->allocation.x1;
box->y2 = priv->allocation.y2 - priv->allocation.y1;
if (priv->content == NULL)
return;
if (priv->content_box_valid)
{
*box = priv->content_box;
return;
}
/* no need to do any more work */
if (priv->content_gravity == CLUTTER_CONTENT_GRAVITY_RESIZE_FILL)
return;
if (priv->content == NULL)
return;
/* if the content does not have a preferred size then there is
* no point in computing the content box
*/

2
tests/interactive/test-image-box.c
View File

@ -33,7 +33,9 @@ on_clicked (ClutterClickAction *action,
{
gchar *str;
clutter_actor_save_easing_state (actor);
clutter_actor_set_content_gravity (actor, gravities[cur_gravity].gravity);
clutter_actor_restore_easing_state (actor);
str = g_strconcat ("Content gravity: ", gravities[cur_gravity].name, NULL);
clutter_text_set_text (label, str);