mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-10-03 17:22:29 +00:00
Code Issues 1 Projects Releases Wiki Activity

timeline-layer: Rework auto transition callbacks management

Browse source 
We now have a GESTrack::track-object-added signal so we now depend on it rather than on each GESTimelineObject::track-object-added signal.
This commit is contained in:
Thibault Saunier 2012-04-07 21:04:21 -04:00
parent 259af361bc
commit 64b4a38494
1 changed files with 62 additions and 60 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

122
ges/ges-timeline-layer.c
View file

@ -38,10 +38,14 @@
#define LAYER_HEIGHT 1000
static void
track_object_removed_cb (GESTimelineObject * object,
GESTrackObject * track_object);
static void track_object_added_cb (GESTimelineObject * object,
GESTrackObject * track_object, GHashTable * signal_table);
track_object_removed_cb (GESTrack * track, GESTrackObject * track_object);
static void track_object_added_cb (GESTrack * track,
GESTrackObject * track_object, GESTimelineLayer * layer);
static void
track_removed_cb (GESTrack * track, GESTrackObject * track_object,
GESTimelineLayer * layer);
static void track_added_cb (GESTrack * track, GESTrackObject * track_object,
GESTimelineLayer * layer);
static void track_object_changed_cb (GESTrackObject * track_object,
GParamSpec * arg G_GNUC_UNUSED);
static void calculate_transitions (GESTrackObject * track_object);
@ -65,8 +69,6 @@ struct _GESTimelineLayerPrivate
gboolean auto_transition;
GHashTable *signal_table;
};
enum
@ -214,9 +216,6 @@ ges_timeline_layer_init (GESTimelineLayer * self)
self->priv->auto_transition = FALSE;
self->min_gnl_priority = 0;
self->max_gnl_priority = LAYER_HEIGHT;
self->priv->signal_table =
g_hash_table_new_full (g_direct_hash, g_direct_equal, g_object_unref,
NULL);
}
/**
@ -255,6 +254,31 @@ ges_timeline_layer_set_timeline (GESTimelineLayer * layer,
{
GST_DEBUG ("layer:%p, timeline:%p", layer, timeline);
if (layer->priv->auto_transition == TRUE) {
if (layer->timeline != NULL) {
g_signal_handlers_disconnect_by_func (layer->timeline, track_added_cb,
layer);
g_signal_handlers_disconnect_by_func (layer->timeline, track_removed_cb,
layer);
}
if (timeline != NULL) {
GList *tmp, *tracks = ges_timeline_get_tracks (timeline);
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;
}
@ -338,16 +362,6 @@ ges_timeline_layer_add_object (GESTimelineLayer * layer,
g_list_insert_sorted (layer->priv->objects_start, object,
(GCompareFunc) objects_start_compare);
/* We have to wait for the track objects to be created to calculate transitions */
if (layer->priv->auto_transition) {
if (GES_IS_TIMELINE_SOURCE (object)) {
g_signal_connect (G_OBJECT (object), "track-object-added",
G_CALLBACK (track_object_added_cb), layer->priv->signal_table);
g_signal_connect (G_OBJECT (object), "track-object-removed",
G_CALLBACK (track_object_removed_cb), NULL);
}
}
/* Inform the object it's now in this layer */
ges_timeline_object_set_layer (object, layer);
@ -390,7 +404,7 @@ track_object_duration_cb (GESTrackObject * track_object,
}
static void
track_object_deleted_cb (GESTrack * track, GESTrackObject * track_object)
track_object_removed_cb (GESTrack * track, GESTrackObject * track_object)
{
GList *track_objects, *tmp, *cur;
GESTimelineLayer *layer;
@ -438,12 +452,28 @@ track_object_deleted_cb (GESTrack * track, GESTrackObject * track_object)
}
static void
track_object_added_cb (GESTimelineObject * object,
GESTrackObject * track_object, GHashTable * signal_table)
track_removed_cb (GESTrack * track, GESTrackObject * track_object,
GESTimelineLayer * layer)
{
GESTrack *track;
gint ptr;
g_signal_handlers_disconnect_by_func (track, track_object_added_cb, layer);
g_signal_handlers_disconnect_by_func (track, track_object_removed_cb, NULL);
}
static void
track_added_cb (GESTrack * track, GESTrackObject * track_object,
GESTimelineLayer * layer)
{
g_signal_connect (track, "track-object-removed",
(GCallback) track_object_removed_cb, NULL);
g_signal_connect (track, "track-object-added",
(GCallback) track_object_added_cb, NULL);
}
static void
track_object_added_cb (GESTrack * track, GESTrackObject * track_object,
GESTimelineLayer * layer)
{
GST_ERROR ("TRACKOBJECTADDED %i", GES_IS_TRACK_SOURCE (track_object));
if (GES_IS_TRACK_SOURCE (track_object)) {
g_signal_connect (G_OBJECT (track_object), "notify::start",
G_CALLBACK (track_object_changed_cb), NULL);
@ -451,25 +481,7 @@ track_object_added_cb (GESTimelineObject * object,
G_CALLBACK (track_object_duration_cb), NULL);
calculate_transitions (track_object);
}
track = ges_track_object_get_track (track_object);
if (!g_hash_table_lookup (signal_table, track)) {
ptr = g_signal_connect (track, "track-object-removed",
(GCallback) track_object_deleted_cb, NULL);
g_hash_table_insert (signal_table, track, GINT_TO_POINTER (ptr));
}
return;
}
static void
track_object_removed_cb (GESTimelineObject * object,
GESTrackObject * track_object)
{
return;
if (GES_IS_TRACK_SOURCE (track_object)) {
g_signal_handlers_disconnect_by_func (track_object, track_object_changed_cb,
object);
}
return;
}
static void
@ -778,13 +790,6 @@ look_for_transition (GESTrackObject * track_object, GESTimelineLayer * layer)
g_list_free (track_objects);
}
static gboolean
disconnect_handlers (GESTrack * track, gpointer * ptr)
{
g_signal_handler_disconnect (track, GPOINTER_TO_INT (ptr));
return TRUE;
}
/**
* ges_timeline_layer_remove_object:
@ -831,9 +836,6 @@ ges_timeline_layer_remove_object (GESTimelineLayer * layer,
g_list_free (trackobjects);
}
g_hash_table_foreach_remove (layer->priv->signal_table,
(GHRFunc) disconnect_handlers, NULL);
/* emit 'object-removed' */
g_signal_emit (layer, ges_timeline_layer_signals[OBJECT_REMOVED], 0, object);
@ -934,14 +936,14 @@ ges_timeline_layer_set_auto_transition (GESTimelineLayer * layer,
GList *tmp;
g_return_if_fail (GES_IS_TIMELINE_LAYER (layer));
if (auto_transition) {
for (tmp = layer->priv->objects_start; tmp; tmp = tmp->next) {
if (GES_IS_TIMELINE_SOURCE (tmp->data)) {
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), layer);
}
if (auto_transition && layer->timeline) {
GList *tracks = ges_timeline_get_tracks (layer->timeline);
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 */
}