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container: Update offsets in GESTimelineElement vmethod implementations

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So subclasses just have to link up to resync offsets
This commit is contained in:
Thibault Saunier 2013-06-26 19:55:37 -04:00 committed by Mathieu Duponchelle
parent cd111fa10a
commit 87cfcca5e7
1 changed files with 65 additions and 0 deletions
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65
ges/ges-container.c
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@ -142,6 +142,66 @@ compare_grouping_prio (GType * a, GType * b)
return ret;
}
/*****************************************************
* *
* GESTimelineElement virtual methods implementation *
* *
*****************************************************/
static gboolean
_set_start (GESTimelineElement * element, GstClockTime start)
{
GList *tmp;
ChildMapping *map;
GESContainer *container = GES_CONTAINER (element);
GESContainerPrivate *priv = container->priv;
GST_DEBUG_OBJECT (element, "Updating children offsets, (initiated_move: %"
GST_PTR_FORMAT ")", container->initiated_move);
for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
GESTimelineElement *child = (GESTimelineElement *) tmp->data;
map = g_hash_table_lookup (priv->mappings, child);
map->start_offset = start - _START (child);
}
priv->children_control_mode = GES_CHILDREN_UPDATE;
return TRUE;
}
static gboolean
_set_inpoint (GESTimelineElement * element, GstClockTime inpoint)
{
GList *tmp;
GESContainer *container = GES_CONTAINER (element);
for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
GESTimelineElement *child = (GESTimelineElement *) tmp->data;
ChildMapping *map = g_hash_table_lookup (container->priv->mappings, child);
map->inpoint_offset = inpoint - _INPOINT (child);
}
return TRUE;
}
static gboolean
_set_duration (GESTimelineElement * element, GstClockTime duration)
{
GList *tmp;
GESContainer *container = GES_CONTAINER (element);
GESContainerPrivate *priv = container->priv;
for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
GESTimelineElement *child = (GESTimelineElement *) tmp->data;
ChildMapping *map = g_hash_table_lookup (priv->mappings, child);
map->duration_offset = duration - _DURATION (child);
}
return TRUE;
}
/******************************************
* *
* GObject virtual methods implementation *
@ -184,6 +244,7 @@ static void
ges_container_class_init (GESContainerClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESTimelineElementClass *element_class = GES_TIMELINE_ELEMENT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (ges_container_debug, "gescontainer",
GST_DEBUG_FG_YELLOW, "ges container");
@ -232,6 +293,10 @@ ges_container_class_init (GESContainerClass * klass)
GES_TYPE_TIMELINE_ELEMENT);
element_class->set_start = _set_start;
element_class->set_duration = _set_duration;
element_class->set_inpoint = _set_inpoint;
/* No default implementations */
klass->remove_child = NULL;
klass->add_child = NULL;