[clutter] Add _clutter_actor_peek_layout_info

[Alexander Larsson <alexl src gnome org>]

commit 962bcb12224685b3a93fe5b449331d5d477eaf87
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Jun 7 16:31:22 2012 +0200

    Add _clutter_actor_peek_layout_info
    
    This will be needed later to get a layout_info without creating one
    if there is none already.

 clutter/clutter-actor-private.h |    1 +
 clutter/clutter-actor.c         |   20 ++++++++++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)
---
diff --git a/clutter/clutter-actor-private.h b/clutter/clutter-actor-private.h
index 55e4f46..07e2960 100644
--- a/clutter/clutter-actor-private.h
+++ b/clutter/clutter-actor-private.h
@@ -177,6 +177,7 @@ struct _ClutterLayoutInfo
 
 const ClutterLayoutInfo *       _clutter_actor_get_layout_info_or_defaults      (ClutterActor *self);
 ClutterLayoutInfo *             _clutter_actor_get_layout_info                  (ClutterActor *self);
+ClutterLayoutInfo *             _clutter_actor_peek_layout_info                 (ClutterActor *self);
 
 struct _ClutterTransformInfo
 {
diff --git a/clutter/clutter-actor.c b/clutter/clutter-actor.c
index fda5aca..96d3de2 100644
--- a/clutter/clutter-actor.c
+++ b/clutter/clutter-actor.c
@@ -16372,6 +16372,22 @@ layout_info_free (gpointer data)
 }
 
 /*< private >
+ * _clutter_actor_peek_layout_info:
+ * @self: a #ClutterActor
+ *
+ * Retrieves a pointer to the ClutterLayoutInfo structure.
+ *
+ * If the actor does not have a ClutterLayoutInfo associated to it, %NULL is returned.
+ *
+ * Return value: (transfer none): a pointer to the ClutterLayoutInfo structure
+ */
+ClutterLayoutInfo *
+_clutter_actor_peek_layout_info (ClutterActor *self)
+{
+  return g_object_get_qdata (G_OBJECT (self), quark_actor_layout_info);
+}
+
+/*< private >
  * _clutter_actor_get_layout_info:
  * @self: a #ClutterActor
  *
@@ -16392,7 +16408,7 @@ _clutter_actor_get_layout_info (ClutterActor *self)
 {
   ClutterLayoutInfo *retval;
 
-  retval = g_object_get_qdata (G_OBJECT (self), quark_actor_layout_info);
+  retval = _clutter_actor_peek_layout_info (self);
   if (retval == NULL)
     {
       retval = g_slice_new (ClutterLayoutInfo);
@@ -16425,7 +16441,7 @@ _clutter_actor_get_layout_info_or_defaults (ClutterActor *self)
 {
   const ClutterLayoutInfo *info;
 
-  info = g_object_get_qdata (G_OBJECT (self), quark_actor_layout_info);
+  info = _clutter_actor_peek_layout_info (self);
   if (info == NULL)
     return &default_layout_info;