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[layout] Make LayoutManager a floating object

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A layout manager instance makes only sense if it's owned by a
container. For this reason, it should have a floating reference
instead of a full reference on construction; this allows constructing
Boxes like:

  box = clutter_box_new (clutter_fixed_layout_new ());

without leaking the layout manager instance.
This commit is contained in:
Emmanuele Bassi 2009-09-02 11:55:22 +01:00
parent 0340f65634
commit 141a155690
3 changed files with 7 additions and 4 deletions
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3
clutter/clutter-box.c
View File

@ -281,7 +281,8 @@ clutter_box_set_property (GObject *gobject,
switch (prop_id)
{
case PROP_LAYOUT_MANAGER:
priv->manager = g_value_dup_object (value);
priv->manager = g_value_get_object (value);
g_object_ref_sink (priv->manager);
break;
default:

4
clutter/clutter-layout-manager.c
View File

@ -23,7 +23,9 @@
G_OBJECT_TYPE_NAME (_obj), \
(method)); } G_STMT_END
G_DEFINE_ABSTRACT_TYPE (ClutterLayoutManager, clutter_layout_manager, G_TYPE_OBJECT);
G_DEFINE_ABSTRACT_TYPE (ClutterLayoutManager,
clutter_layout_manager,
G_TYPE_INITIALLY_UNOWNED);
static void
layout_manager_real_get_preferred_width (ClutterLayoutManager *manager,

4
clutter/clutter-layout-manager.h
View File

@ -30,7 +30,7 @@ typedef struct _ClutterLayoutManagerClass ClutterLayoutManagerClass;
*/
struct _ClutterLayoutManager
{
GObject parent_instance;
GInitiallyUnowned parent_instance;
};
/**
@ -43,7 +43,7 @@ struct _ClutterLayoutManager
*/
struct _ClutterLayoutManagerClass
{
GObjectClass parent_class;
GInitiallyUnownedClass parent_class;
void (* get_preferred_width) (ClutterLayoutManager *manager,
ClutterContainer *container,