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timeline-layer: Factor out a method to start observing timeline for auto-transitions

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This commit is contained in:
Thibault Saunier 2012-04-07 21:40:07 -04:00
parent e172c294fe
commit 2e43caf911
1 changed files with 32 additions and 30 deletions
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62
ges/ges-timeline-layer.c
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@ -493,7 +493,6 @@ look_for_transition (GESTrackObject * track_object, GESTimelineLayer * layer)
GList *track_objects, *tmp, *cur;
track = ges_track_object_get_track (track_object);
track_objects = ges_track_get_objects (track);
cur = g_list_find (track_objects, track_object);
@ -663,6 +662,28 @@ timeline_object_height_changed_cb (GESTimelineObject * obj,
g_object_set (second_obj, "priority", priority + height, NULL);
}
static void
start_calculating_transitions (GESTimelineLayer * layer)
{
GList *tmp, *tracks = ges_timeline_get_tracks (layer->timeline);
g_signal_connect (layer->timeline, "track-added", G_CALLBACK (track_added_cb),
layer);
g_signal_connect (layer->timeline, "track-removed",
G_CALLBACK (track_removed_cb), layer);
for (tmp = tracks; tmp; tmp = tmp->next) {
g_signal_connect (G_OBJECT (tmp->data), "track-object-added",
G_CALLBACK (track_object_added_cb), layer);
g_signal_connect (G_OBJECT (tmp->data), "track-object-removed",
G_CALLBACK (track_object_removed_cb), NULL);
}
g_list_free_full (tracks, g_object_unref);
/* FIXME calculate all the transitions at that time */
}
/* Public methods */
/**
* ges_timeline_layer_remove_object:
@ -692,13 +713,15 @@ ges_timeline_layer_remove_object (GESTimelineLayer * layer,
tl_obj_layer = ges_timeline_object_get_layer (object);
if (G_UNLIKELY (tl_obj_layer != layer)) {
GST_WARNING ("TimelineObject doesn't belong to this layer");
if (tl_obj_layer != NULL)
g_object_unref (tl_obj_layer);
return FALSE;
}
g_object_unref (tl_obj_layer);
if (layer->priv->auto_transition) {
if (layer->priv->auto_transition && GES_IS_TIMELINE_SOURCE (object)) {
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = trackobjects; tmp; tmp = tmp->next) {
@ -779,20 +802,11 @@ ges_timeline_layer_set_auto_transition (GESTimelineLayer * layer,
gboolean auto_transition)
{
GList *tmp;
g_return_if_fail (GES_IS_TIMELINE_LAYER (layer));
if (auto_transition && layer->timeline) {
GList *tracks = ges_timeline_get_tracks (layer->timeline);
if (auto_transition && layer->timeline)
start_calculating_transitions (layer);
for (tmp = tracks; tmp; tmp = tmp->next) {
g_signal_connect (G_OBJECT (tmp->data), "track-object-added",
G_CALLBACK (track_object_added_cb), layer);
g_signal_connect (G_OBJECT (tmp->data), "track-object-removed",
G_CALLBACK (track_object_removed_cb), NULL);
}
/* FIXME calculate all the transitions at that time */
}
layer->priv->auto_transition = auto_transition;
}
@ -979,22 +993,10 @@ ges_timeline_layer_set_timeline (GESTimelineLayer * layer,
layer);
}
if (timeline != NULL) {
GList *tmp, *tracks = ges_timeline_get_tracks (timeline);
layer->timeline = timeline;
if (timeline != NULL)
start_calculating_transitions (layer);
g_signal_connect (timeline, "track-added", G_CALLBACK (track_added_cb),
layer);
g_signal_connect (timeline, "track-removed",
G_CALLBACK (track_removed_cb), layer);
for (tmp = tracks; tmp; tmp = tmp->next) {
g_signal_connect (G_OBJECT (tmp->data), "track-object-added",
G_CALLBACK (track_object_added_cb), layer);
g_signal_connect (G_OBJECT (tmp->data), "track-object-removed",
G_CALLBACK (track_object_removed_cb), NULL);
}
}
}
layer->timeline = timeline;
} else
layer->timeline = timeline;
}