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Force a relayout when showing an actor

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When an actor is hidden, the parent actor is not required to
size request or allocate it. (ClutterGroup does, but, for example,
NbtkBoxLayout doesn't.) This means that the
needs_width_request/needs_height_request/needs_allocate can be
stale when we go to show it again - they are set for the actor
but not the parent. Explicitly setting them to FALSE avoids
clutter_actor_relayout() improperly short-circuiting.

http://bugzilla.openedhand.com/show_bug.cgi?id=1831

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Owen W. Taylor 2009-10-05 23:20:07 -04:00 committed by Emmanuele Bassi
parent 571df43b6d
commit c137010524
1 changed files with 9 additions and 0 deletions
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9
clutter/clutter-actor.c
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@ -961,6 +961,8 @@ clutter_actor_real_show (ClutterActor *self)
{
if (!CLUTTER_ACTOR_IS_VISIBLE (self))
{
ClutterActorPrivate *priv = self->priv;
CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_VISIBLE);
/* we notify on the "visible" flag in the clutter_actor_show()
* wrapper so the entire show signal emission completes first
@ -968,6 +970,13 @@ clutter_actor_real_show (ClutterActor *self)
*/
clutter_actor_update_map_state (self, MAP_STATE_CHECK);
/* While an actor is hidden the parent may not have allocated/requested
* so we need to start from scratch and avoid the short-circuiting
* in clutter_actor_queue_relayout().
*/
priv->needs_width_request = FALSE;
priv->needs_height_request = FALSE;
priv->needs_allocation = FALSE;
clutter_actor_queue_relayout (self);
}
}