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GESTimelineLayer: Fix reference handling of objects, add docs.

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This commit is contained in:
Edward Hervey 2009-09-14 19:23:52 +02:00
parent 0249968c71
commit 1dc12c9658
1 changed files with 32 additions and 1 deletions
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33
ges/ges-timeline-layer.c
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@ -63,6 +63,13 @@ ges_timeline_layer_set_property (GObject * object, guint property_id,
static void
ges_timeline_layer_dispose (GObject * object)
{
GESTimelineLayer *layer = GES_TIMELINE_LAYER (object);
if (layer->objects_start) {
g_slist_foreach (layer->objects_start, (GFunc) g_object_unref, NULL);
g_slist_free (layer->objects_start);
layer->objects_start = NULL;
}
G_OBJECT_CLASS (ges_timeline_layer_parent_class)->dispose (object);
}
@ -133,6 +140,18 @@ objects_start_compare (GESTimelineObject * a, GESTimelineObject * b)
return 0;
}
/**
* ges_timeline_layer_add_object:
* @layer: a #GESTimelineLayer
* @object: the #GESTimelineObject to add.
*
* Adds the object to the layer. The layer will steal a reference to the
* provided object.
*
* Returns: TRUE if the object was properly added to the layer, or FALSE
* if the @layer refused to add the object.
*/
gboolean
ges_timeline_layer_add_object (GESTimelineLayer * layer,
GESTimelineObject * object)
@ -146,7 +165,7 @@ ges_timeline_layer_add_object (GESTimelineLayer * layer,
/* Take a reference to the object and store it stored by start/priority */
layer->objects_start =
g_slist_insert_sorted (layer->objects_start, g_object_ref (object),
g_slist_insert_sorted (layer->objects_start, object,
(GCompareFunc) objects_start_compare);
/* Inform the object it's now in this layer */
@ -158,6 +177,18 @@ ges_timeline_layer_add_object (GESTimelineLayer * layer,
return TRUE;
}
/**
* ges_timeline_layer_remove_object:
* @layer: a #GESTimelineLayer
* @object: the #GESTimelineObject to remove
*
* Removes the given @object from the @layer. The reference stolen by the @layer
* when the object was added will be removed. If you wish to use the object after
* this function, make sure you take an extra reference to the object before
* calling this function.
*
* Returns: TRUE if the object was properly remove, else FALSE.
*/
gboolean
ges_timeline_layer_remove_object (GESTimelineLayer * layer,
GESTimelineObject * object)