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Don't queue redraws when reallocating actor that haven't moved

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When support for implicit animation of actor position was added,
the optimization for not queueing when allocating an actor back
to the same location was lost. This optimization is important
since when we are hierarchically allocating down from the top of
the stage we constantly reallocate the actors at the top of the
hierarchy back to the same place.

https://bugzilla.gnome.org/show_bug.cgi?id=719368
This commit is contained in:
Owen W. Taylor 2013-11-26 11:04:27 -05:00
parent 0d0248b31f
commit 9a471cf08d
1 changed files with 12 additions and 1 deletions
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13
clutter/clutter-actor.c
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@ -8755,7 +8755,9 @@ clutter_actor_allocate_internal (ClutterActor *self,
CLUTTER_UNSET_PRIVATE_FLAGS (self, CLUTTER_IN_RELAYOUT);
clutter_actor_queue_redraw (self);
/* Caller should call clutter_actor_queue_redraw() if needed
* for that particular case.
*/
}
/**
@ -8864,6 +8866,14 @@ clutter_actor_allocate (ClutterActor *self,
return;
}
if (!stage_allocation_changed)
{
/* If the actor didn't move but needs_allocation is set, we just
* need to allocate the children */
clutter_actor_allocate_internal (self, &real_allocation, flags);
return;
}
/* When ABSOLUTE_ORIGIN_CHANGED is passed in to
* clutter_actor_allocate(), it indicates whether the parent has its
* absolute origin moved; when passed in to ClutterActor::allocate()
@ -12665,6 +12675,7 @@ clutter_actor_set_animatable_property (ClutterActor *actor,
clutter_actor_allocate_internal (actor,
g_value_get_boxed (value),
actor->priv->allocation_flags);
clutter_actor_queue_redraw (actor);
break;
case PROP_Z_POSITION: