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stage: re-implement minimal paint() method to respect Z order 

Without a paint() implementation in clutter-stage, the function
from clutter-group is used.  That class has its own child list,
but attempts to use sort_depth_order, which is empty in this case.

This provides a partial fix by replacing a minimal paint(), see:

https://bugzilla.gnome.org/show_bug.cgi?id=711645
This commit is contained in:
David Warman 2014-02-25 18:14:00 +00:00 committed by Emmanuele Bassi
parent 2b3fac8b3d
commit 5d53620bb9
1 changed files with 16 additions and 0 deletions
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16
clutter/clutter-stage.c
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@ -691,6 +691,21 @@ _clutter_stage_do_paint (ClutterStage *stage,
clutter_stage_invoke_paint_callback (stage);
}
/* If we don't implement this here, we get the paint function
* from the deprecated clutter-group class, which doesn't
* respect the Z order as it uses our empty sort_depth_order.
*/
static void
clutter_stage_paint (ClutterActor *self)
{
ClutterActorIter iter;
ClutterActor *child;
clutter_actor_iter_init (&iter, self);
while (clutter_actor_iter_next (&iter, &child))
clutter_actor_paint (child);
}
#if 0
/* the Stage is cleared in clutter_actor_paint_node() */
static void
@ -1873,6 +1888,7 @@ clutter_stage_class_init (ClutterStageClass *klass)
actor_class->allocate = clutter_stage_allocate;
actor_class->get_preferred_width = clutter_stage_get_preferred_width;
actor_class->get_preferred_height = clutter_stage_get_preferred_height;
actor_class->paint = clutter_stage_paint;
actor_class->pick = clutter_stage_pick;
actor_class->get_paint_volume = clutter_stage_get_paint_volume;
actor_class->realize = clutter_stage_realize;