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Applied patch from bug #947

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* clutter/clutter-stage.c (clutter_stage_get_default): Don't grab
	the floating reference when creating the default stage. The stage
	manager will take a reference to it so it will behave as any other
	stage.
	(clutter_stage_new): Don't take the floating reference to the new
	stage but let the stage manager keep it instead.

	* clutter/clutter-stage-manager.c
	(_clutter_stage_manager_add_stage): Take a reference to the stage
	when it is added to the list.
	(_clutter_stage_manager_remove_stage): Unref the stage when it is
	removed from the list.
	(clutter_stage_manager_dispose): Keep track of the 'next' pointer
	as a separate variable so we can cope when the stage being
	destroyed removes itself from the list as the list is being
	iterated.

	* clutter/clutter-actor.c (clutter_actor_destroy): Take a
	reference at the beginning of the function even if there is no
	parent container so that overall the reference count is not
	changed when the actor is unref'd again at the bottom of the
	function. Previously it would have a net effect of leaving the
	reference count alone unless it is a top level actor in which case
	it would unref it.
This commit is contained in:
Neil Roberts 2008-06-03 20:15:11 +00:00
parent 437fa9239f
commit b887bddbb1
4 changed files with 46 additions and 27 deletions
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29
ChangeLog
View File

@ -1,3 +1,32 @@
2008-06-03 Neil Roberts <neil@o-hand.com>
Applied patch from bug #947
* clutter/clutter-stage.c (clutter_stage_get_default): Don't grab
the floating reference when creating the default stage. The stage
manager will take a reference to it so it will behave as any other
stage.
(clutter_stage_new): Don't take the floating reference to the new
stage but let the stage manager keep it instead.
* clutter/clutter-stage-manager.c
(_clutter_stage_manager_add_stage): Take a reference to the stage
when it is added to the list.
(_clutter_stage_manager_remove_stage): Unref the stage when it is
removed from the list.
(clutter_stage_manager_dispose): Keep track of the 'next' pointer
as a separate variable so we can cope when the stage being
destroyed removes itself from the list as the list is being
iterated.
* clutter/clutter-actor.c (clutter_actor_destroy): Take a
reference at the beginning of the function even if there is no
parent container so that overall the reference count is not
changed when the actor is unref'd again at the bottom of the
function. Previously it would have a net effect of leaving the
reference count alone unless it is a top level actor in which case
it would unref it.
2008-06-03 Matthew Allum <mallum@openedhand.com>
* clutter/glx/clutter-glx-texture-pixmap.c:

7
clutter/clutter-actor.c
View File

@ -2488,15 +2488,14 @@ clutter_actor_destroy (ClutterActor *self)
priv = self->priv;
g_object_ref (self);
if (priv->parent_actor)
{
ClutterActor *parent = priv->parent_actor;
if (CLUTTER_IS_CONTAINER (parent))
{
g_object_ref (self);
clutter_container_remove_actor (CLUTTER_CONTAINER (parent), self);
}
clutter_container_remove_actor (CLUTTER_CONTAINER (parent), self);
else
priv->parent_actor = NULL;
}

15
clutter/clutter-stage-manager.c
View File

@ -67,13 +67,14 @@ static void
clutter_stage_manager_dispose (GObject *gobject)
{
ClutterStageManager *stage_manager;
GSList *l;
GSList *l, *next;
stage_manager = CLUTTER_STAGE_MANAGER (gobject);
for (l = stage_manager->stages; l; l = l->next)
for (l = stage_manager->stages; l; l = next)
{
ClutterActor *stage = l->data;
next = l->next;
if (stage)
clutter_actor_destroy (stage);
@ -245,12 +246,8 @@ _clutter_stage_manager_add_stage (ClutterStageManager *stage_manager,
return;
}
/* Refing currently disabled as
* - adding/removing internal to clutter and only stage does this
* - stage removes from manager in finalize (and how can it with ref)
* - Maybe a safer way
* g_object_ref_sink (stage);
*/
g_object_ref_sink (stage);
stage_manager->stages = g_slist_append (stage_manager->stages, stage);
if (!default_stage)
@ -282,5 +279,5 @@ _clutter_stage_manager_remove_stage (ClutterStageManager *stage_manager,
g_signal_emit (stage_manager, manager_signals[STAGE_REMOVED], 0, stage);
/* g_object_unref (stage); */
g_object_unref (stage);
}

22
clutter/clutter-stage.c
View File

@ -651,13 +651,11 @@ clutter_stage_get_default (void)
stage = clutter_stage_manager_get_default_stage (stage_manager);
if (G_UNLIKELY (stage == NULL))
{
/* this will take care of automatically adding the stage
* to the stage manager and setting it as the default
*/
stage = g_object_new (CLUTTER_TYPE_STAGE, NULL);
g_object_ref_sink (stage);
}
/* This will take care of automatically adding the stage to the
* stage manager and setting it as the default. Its floating
* reference will be claimed by the stage manager.
*/
stage = g_object_new (CLUTTER_TYPE_STAGE, NULL);
return CLUTTER_ACTOR (stage);
}
@ -1631,8 +1629,6 @@ clutter_fog_get_type (void)
ClutterActor *
clutter_stage_new (void)
{
ClutterActor *retval;
if (!clutter_feature_available (CLUTTER_FEATURE_STAGE_MULTIPLE))
{
g_warning ("Unable to create a new stage: the %s backend does not "
@ -1641,11 +1637,9 @@ clutter_stage_new (void)
return NULL;
}
retval = g_object_new (CLUTTER_TYPE_STAGE, NULL);
if (retval)
return g_object_ref_sink (retval);
return NULL;
/* The stage manager will grab the floating reference when the stage
is added to it in the constructor */
return g_object_new (CLUTTER_TYPE_STAGE, NULL);
}
/**