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Timeline: Implement remove_track, remove_layer, and _layer_object_removed_cb

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This commit is contained in:
Edward Hervey 2009-08-07 16:41:23 +02:00
parent 02e1f3910d
commit 9f4f14722d
1 changed files with 64 additions and 11 deletions
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75
ges/ges-timeline.c
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@ -155,7 +155,7 @@ layer_object_added_cb (GESTimelineLayer * layer, GESTimelineObject * object,
GST_DEBUG ("New TimelineObject %p added to layer %p", object, layer);
for (tmp = timeline->tracks; tmp; tmp = g_list_next (tmp)) {
GESTrack *track = (GESTrack *) track;
GESTrack *track = (GESTrack *) tmp->data;
GESTrackObject *trobj;
GST_LOG ("Trying with track %p", track);
@ -178,7 +178,27 @@ static void
layer_object_removed_cb (GESTimelineLayer * layer, GESTimelineObject * object,
GESTimeline * timeline)
{
/* FIXME : IMPLEMENT */
GList *tmp;
GST_DEBUG ("TimelineObject %p removed from layer %p", object, layer);
/* Go over the object's track objects and figure out which one belongs to
* the list of tracks we control */
for (tmp = object->trackobjects; tmp; tmp = g_list_next (tmp)) {
GESTrackObject *trobj = (GESTrackObject *) tmp->data;
GST_DEBUG ("Trying to remove TrackObject %p", trobj);
if (G_LIKELY (g_list_find (timeline->tracks, trobj->track))) {
GST_DEBUG ("Belongs to one of the tracks we control");
ges_track_remove_object (trobj->track, trobj);
ges_timeline_object_release_track_object (object, trobj);
}
}
GST_DEBUG ("Done");
}
@ -205,8 +225,8 @@ ges_timeline_add_layer (GESTimeline * timeline, GESTimelineLayer * layer)
/* Inform the layer that it belongs to a new timeline */
ges_timeline_layer_set_timeline (layer, timeline);
/* FIXME : GO OVER THE LIST OF EXISTING TIMELINE OBJECTS IN THAT LAYER
* AND ADD THEM !!! */
/* FIXME : GO OVER THE LIST OF ALREADY EXISTING TIMELINE OBJECTS IN THAT
* LAYER AND ADD THEM !!! */
/* Connect to 'object-added'/'object-removed' signal from the new layer */
g_signal_connect (layer, "object-added", G_CALLBACK (layer_object_added_cb),
@ -223,10 +243,28 @@ ges_timeline_add_layer (GESTimeline * timeline, GESTimelineLayer * layer)
gboolean
ges_timeline_remove_layer (GESTimeline * timeline, GESTimelineLayer * layer)
{
/* FIXME : IMPLEMENT */
GST_DEBUG ("timeline:%p, layer:%p", timeline, layer);
/* Unassign tracks from the given layer */
return FALSE;
if (G_UNLIKELY (!g_list_find (timeline->layers, layer))) {
GST_WARNING ("Layer doesn't belong to this timeline");
return FALSE;
}
/* Disconnect signals */
GST_DEBUG ("Disconnecting signal callbacks");
g_signal_handlers_disconnect_by_func (layer, layer_object_added_cb, timeline);
g_signal_handlers_disconnect_by_func (layer, layer_object_removed_cb,
timeline);
timeline->layers = g_list_remove (timeline->layers, layer);
ges_timeline_layer_set_timeline (layer, NULL);
g_signal_emit (timeline, ges_timeline_signals[LAYER_REMOVED], 0, layer);
g_object_unref (layer);
return TRUE;
}
gboolean
@ -234,7 +272,7 @@ ges_timeline_add_track (GESTimeline * timeline, GESTrack * track)
{
GST_DEBUG ("timeline:%p, track:%p", timeline, track);
/* Add to the list of tracks, make sure we don't already control it */
/* make sure we don't already control it */
if (G_UNLIKELY (g_list_find (timeline->tracks, (gconstpointer) track))) {
GST_WARNING ("Track is already controlled by this timeline");
return FALSE;
@ -264,10 +302,25 @@ ges_timeline_add_track (GESTimeline * timeline, GESTrack * track)
gboolean
ges_timeline_remove_track (GESTimeline * timeline, GESTrack * track)
{
/* FIXME : IMPLEMENT */
GST_DEBUG ("timeline:%p, track:%p", timeline, track);
if (G_UNLIKELY (!g_list_find (timeline->tracks, track))) {
GST_WARNING ("Track doesn't belong to this timeline");
return FALSE;
}
timeline->tracks = g_list_remove (timeline->tracks, track);
ges_track_set_timeline (track, NULL);
/* remove track from our bin */
if (G_UNLIKELY (!gst_bin_remove (GST_BIN (timeline), GST_ELEMENT (track)))) {
GST_WARNING ("Couldn't remove track to ourself (GST)");
return FALSE;
}
/* Signal track removal to all layers/objects */
g_signal_emit (timeline, ges_timeline_signals[TRACK_REMOVED], 0, track);
/* */
return FALSE;
return TRUE;
}