#include "ges-internal.h"
#include "ges-simple-timeline-layer.h"
+#include "ges-timeline-object.h"
+
+static void
+ges_simple_timeline_layer_object_removed (GESTimelineLayer * layer,
+ GESTimelineObject * object);
+
+static void
+ges_simple_timeline_layer_object_added (GESTimelineLayer * layer,
+ GESTimelineObject * object);
G_DEFINE_TYPE (GESSimpleTimelineLayer, ges_simple_timeline_layer,
GES_TYPE_TIMELINE_LAYER);
ges_simple_timeline_layer_class_init (GESSimpleTimelineLayerClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GESTimelineLayerClass *layer_class = GES_TIMELINE_LAYER_CLASS (klass);
object_class->get_property = ges_simple_timeline_layer_get_property;
object_class->set_property = ges_simple_timeline_layer_set_property;
object_class->dispose = ges_simple_timeline_layer_dispose;
object_class->finalize = ges_simple_timeline_layer_finalize;
+
+ /* Be informed when objects are being added/removed from elsewhere */
+ layer_class->object_removed = ges_simple_timeline_layer_object_removed;
+ layer_class->object_added = ges_simple_timeline_layer_object_added;
}
static void
ges_simple_timeline_layer_init (GESSimpleTimelineLayer * self)
{
+ self->objects = NULL;
+}
+
+static void
+gstl_recalculate (GESSimpleTimelineLayer * self)
+{
+ GList *tmp;
+ GstClockTime pos = 0;
+
+ GST_DEBUG ("recalculating values");
+
+ for (tmp = self->objects; tmp; tmp = tmp->next) {
+ GESTimelineObject *obj = (GESTimelineObject *) tmp->data;
+
+ if (G_UNLIKELY (GES_TIMELINE_OBJECT_START (obj) != pos)) {
+ ges_timeline_object_set_start (obj, pos);
+ }
+ pos += GES_TIMELINE_OBJECT_DURATION (obj);
+ }
}
/**
*
* The layer will steal a reference to the provided object.
*
- * NOT IMPLEMENTED !
- *
* Returns: TRUE if the object was successfuly added, else FALSE.
*/
gboolean
ges_simple_timeline_layer_add_object (GESSimpleTimelineLayer * layer,
GESTimelineObject * object, gint position)
{
- /* NOT IMPLEMENTED */
+ gboolean res;
+
+ GST_DEBUG ("layer:%p, object:%p, position:%d", layer, object, position);
+
+ layer->adding_object = TRUE;
+
+ res = ges_timeline_layer_add_object ((GESTimelineLayer *) layer, object);
+
+ /* Add to layer */
+ if (G_UNLIKELY (!res)) {
+ layer->adding_object = FALSE;
+ return FALSE;
+ }
+
+ layer->adding_object = FALSE;
+
+ GST_DEBUG ("Adding object %p to the list", object);
+ layer->objects = g_list_insert (layer->objects, object, position);
+
+ /* recalculate positions */
+ gstl_recalculate (layer);
- return FALSE;
+ return TRUE;
}
/**
* all other objects, use position 0. To put the objects after all objects, use
* position -1.
*
- * NOT IMPLEMENTED !
- *
* Returns: TRUE if the object was successfuly moved, else FALSE.
*/
ges_simple_timeline_layer_move_object (GESSimpleTimelineLayer * layer,
GESTimelineObject * object, gint newposition)
{
- /* NOT IMPLEMENTED */
+ gint idx;
+
+ GST_DEBUG ("layer:%p, object:%p, newposition:%d", layer, object, newposition);
+
+ if (G_UNLIKELY (object->layer != (GESTimelineLayer *) layer)) {
+ GST_WARNING ("TimelineObject doesn't belong to this layer");
+ return FALSE;
+ }
+
+ /* Find it's current position */
+ idx = g_list_index (layer->objects, object);
+ if (G_UNLIKELY (idx == -1)) {
+ GST_WARNING ("TimelineObject not controlled by this layer");
+ return FALSE;
+ }
+
+ GST_DEBUG ("Object was previously at position %d", idx);
+
+ /* If we don't have to change its position, don't */
+ if (idx == newposition)
+ return TRUE;
+
+ /* pop it off the list */
+ layer->objects = g_list_remove (layer->objects, object);
+
+ /* re-add it at the proper position */
+ layer->objects = g_list_insert (layer->objects, object, (newposition >= 0
+ && newposition < idx) ? newposition : newposition - 1);
+
+ /* recalculate positions */
+ gstl_recalculate (layer);
- return FALSE;
+ return TRUE;
}
/**
{
return g_object_new (GES_TYPE_SIMPLE_TIMELINE_LAYER, NULL);
}
+
+static void
+ges_simple_timeline_layer_object_removed (GESTimelineLayer * layer,
+ GESTimelineObject * object)
+{
+ GESSimpleTimelineLayer *sl = (GESSimpleTimelineLayer *) layer;
+
+ /* remove object from our list */
+ sl->objects = g_list_remove (sl->objects, object);
+ gstl_recalculate (sl);
+}
+
+static void
+ges_simple_timeline_layer_object_added (GESTimelineLayer * layer,
+ GESTimelineObject * object)
+{
+ GESSimpleTimelineLayer *sl = (GESSimpleTimelineLayer *) layer;
+
+ if (sl->adding_object == FALSE) {
+ /* remove object from our list */
+ sl->objects = g_list_append (sl->objects, object);
+ gstl_recalculate (sl);
+ }
+}