From e172c294fec5b7cbecd9a07ae8d9da33cbd714d6 Mon Sep 17 00:00:00 2001 From: Thibault Saunier Date: Sat, 7 Apr 2012 21:24:18 -0400 Subject: [PATCH] timeline-layer: Reorganize file --- ges/ges-timeline-layer.c | 758 +++++++++++++++++++-------------------- 1 file changed, 369 insertions(+), 389 deletions(-) diff --git a/ges/ges-timeline-layer.c b/ges/ges-timeline-layer.c index 9a79beaf95..aa08f8820e 100644 --- a/ges/ges-timeline-layer.c +++ b/ges/ges-timeline-layer.c @@ -37,21 +37,6 @@ #define LAYER_HEIGHT 1000 -static void -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); -static void calculate_next_transition (GESTrackObject * track_object, - GESTimelineLayer * layer); - static void timeline_object_height_changed_cb (GESTimelineObject * obj, GESTrackEffect * tr_eff, GESTimelineObject * second_obj); @@ -64,11 +49,9 @@ struct _GESTimelineLayerPrivate GList *objects_start; /* The TimelineObjects sorted by start and * priority */ - guint32 priority; /* The priority of the layer within the + guint32 priority; /* The priority of the layer within the * containing timeline */ - gboolean auto_transition; - }; enum @@ -88,13 +71,7 @@ enum static guint ges_timeline_layer_signals[LAST_SIGNAL] = { 0 }; -static gboolean ges_timeline_layer_resync_priorities (GESTimelineLayer * layer); - -static GList *track_get_by_layer (GESTimelineLayer * layer, GESTrack * track); - -static void compare (GList * compared, GESTrackObject * track_object, - gboolean ahead); - +/* GObject standard vmethods */ static void ges_timeline_layer_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec) @@ -218,70 +195,7 @@ ges_timeline_layer_init (GESTimelineLayer * self) self->max_gnl_priority = LAYER_HEIGHT; } -/** - * ges_timeline_layer_new: - * - * Creates a new #GESTimelineLayer. - * - * Returns: A new #GESTimelineLayer - */ -GESTimelineLayer * -ges_timeline_layer_new (void) -{ - return g_object_new (GES_TYPE_TIMELINE_LAYER, NULL); -} - -/** - * ges_timeline_layer_get_timeline: - * @layer: The #GESTimelineLayer to get the parent #GESTimeline from - * - * Get the #GESTimeline in which #GESTimelineLayer currently is. - * - * Returns: (transfer none): the #GESTimeline in which #GESTimelineLayer - * currently is or %NULL if not in any timeline yet. - */ -GESTimeline * -ges_timeline_layer_get_timeline (GESTimelineLayer * layer) -{ - g_return_val_if_fail (GES_IS_TIMELINE_LAYER (layer), NULL); - - return layer->timeline; -} - -void -ges_timeline_layer_set_timeline (GESTimelineLayer * layer, - GESTimeline * timeline) -{ - 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; -} - +/* Private methods and utils */ static gint objects_start_compare (GESTimelineObject * a, GESTimelineObject * b) { @@ -320,265 +234,6 @@ track_get_by_layer (GESTimelineLayer * layer, GESTrack * track) return return_list; } -/** - * ges_timeline_layer_add_object: - * @layer: a #GESTimelineLayer - * @object: (transfer full): the #GESTimelineObject to add. - * - * Adds the given object to the layer. Sets the object's parent, and thus - * takes ownership of the object. - * - * An object can only be added to one layer. - * - * Calling this method will construct and properly set all the media related - * elements on @object. If you need to know when those objects (actually #GESTrackObject) - * are constructed, you should connect to the object::track-object-added signal which - * is emited right after those elements are ready to be used. - * - * Returns: TRUE if the object was properly added to the layer, or FALSE - * if the @layer refuses to add the object. - */ -gboolean -ges_timeline_layer_add_object (GESTimelineLayer * layer, - GESTimelineObject * object) -{ - GESTimelineLayer *tl_obj_layer; - guint32 maxprio, minprio, prio; - - GST_DEBUG ("layer:%p, object:%p", layer, object); - - tl_obj_layer = ges_timeline_object_get_layer (object); - - if (G_UNLIKELY (tl_obj_layer)) { - GST_WARNING ("TimelineObject %p already belongs to another layer", object); - g_object_unref (tl_obj_layer); - return FALSE; - } - - g_object_ref_sink (object); - - /* Take a reference to the object and store it stored by start/priority */ - layer->priv->objects_start = - g_list_insert_sorted (layer->priv->objects_start, object, - (GCompareFunc) objects_start_compare); - - /* Inform the object it's now in this layer */ - ges_timeline_object_set_layer (object, layer); - - GST_DEBUG ("current object priority : %d, layer min/max : %d/%d", - GES_TIMELINE_OBJECT_PRIORITY (object), - layer->min_gnl_priority, layer->max_gnl_priority); - - /* Set the priority. */ - maxprio = layer->max_gnl_priority; - minprio = layer->min_gnl_priority; - prio = GES_TIMELINE_OBJECT_PRIORITY (object); - if (minprio + prio > (maxprio)) { - GST_WARNING ("%p is out of the layer %p space, setting its priority to " - "setting its priority %d to failthe maximum priority of the layer %d", - object, layer, prio, maxprio - minprio); - ges_timeline_object_set_priority (object, LAYER_HEIGHT - 1); - } - /* If the object has an acceptable priority, we just let it with its current - * priority */ - - ges_timeline_layer_resync_priorities (layer); - - /* emit 'object-added' */ - g_signal_emit (layer, ges_timeline_layer_signals[OBJECT_ADDED], 0, object); - - return TRUE; -} - -static void -track_object_duration_cb (GESTrackObject * track_object, - GParamSpec * arg G_GNUC_UNUSED) -{ - GESTimelineLayer *layer; - GESTimelineObject *tlobj; - - tlobj = ges_track_object_get_timeline_object (track_object); - layer = ges_timeline_object_get_layer (tlobj); - if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object))) - calculate_next_transition (track_object, layer); -} - -static void -track_object_removed_cb (GESTrack * track, GESTrackObject * track_object) -{ - GList *track_objects, *tmp, *cur; - GESTimelineLayer *layer; - - track_objects = ges_track_get_objects (track); - cur = g_list_find (track_objects, track_object); - for (tmp = cur->next; tmp; tmp = tmp->next) { - if (GES_IS_TRACK_SOURCE (tmp->data)) { - break; - } - if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) - || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { - layer = - ges_timeline_object_get_layer (ges_track_object_get_timeline_object - (tmp->data)); - if (ges_timeline_layer_get_auto_transition (layer)) { - ges_track_enable_update (track, FALSE); - ges_timeline_layer_remove_object (layer, - ges_track_object_get_timeline_object (tmp->data)); - ges_track_enable_update (track, TRUE); - } - g_object_unref (layer); - } - } - - for (tmp = cur->prev; tmp; tmp = tmp->prev) { - if (GES_IS_TRACK_SOURCE (tmp->data)) { - break; - } - if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) - || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { - layer = - ges_timeline_object_get_layer (ges_track_object_get_timeline_object - (tmp->data)); - if (ges_timeline_layer_get_auto_transition (layer)) { - ges_track_enable_update (track, FALSE); - ges_timeline_layer_remove_object (layer, - ges_track_object_get_timeline_object (tmp->data)); - ges_track_enable_update (track, TRUE); - } - g_object_unref (layer); - } - } - g_object_unref (track_object); -} - -static void -track_removed_cb (GESTrack * track, GESTrackObject * track_object, - GESTimelineLayer * layer) -{ - 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); - g_signal_connect (G_OBJECT (track_object), "notify::duration", - G_CALLBACK (track_object_duration_cb), NULL); - calculate_transitions (track_object); - } - -} - -static void -timeline_object_height_changed_cb (GESTimelineObject * obj, - GESTrackEffect * tr_eff, GESTimelineObject * second_obj) -{ - gint priority, height; - g_object_get (obj, "height", &height, "priority", &priority, NULL); - g_object_set (second_obj, "priority", priority + height, NULL); -} - -static void -track_object_changed_cb (GESTrackObject * track_object, - GParamSpec * arg G_GNUC_UNUSED) -{ - if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object))) - calculate_transitions (track_object); -} - -static void -calculate_next_transition_with_list (GESTrackObject * track_object, - GList * tckobjs_in_layer, GESTimelineLayer * layer) -{ - GList *compared; - - if (!(compared = g_list_find (tckobjs_in_layer, track_object))) - return; - - if (compared == NULL) - /* This is the last TrackObject of the Track */ - return; - - do { - compared = compared->next; - if (compared == NULL) - return; - } while (!GES_IS_TRACK_SOURCE (compared->data)); - - compare (compared, track_object, FALSE); -} - - -static void -calculate_next_transition (GESTrackObject * track_object, - GESTimelineLayer * layer) -{ - GESTrack *track; - GList *tckobjs_in_layer; - - if ((track = ges_track_object_get_track (track_object))) { - tckobjs_in_layer = track_get_by_layer (layer, track); - calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer); - - g_list_foreach (tckobjs_in_layer, (GFunc) g_object_unref, NULL); - g_list_free (tckobjs_in_layer); - } -} - -static void -calculate_transitions (GESTrackObject * track_object) -{ - GList *tckobjs_in_layer, *compared; - GESTimelineLayer *layer; - GESTimelineObject *tlobj; - - GESTrack *track = ges_track_object_get_track (track_object); - - if (track == NULL) - return; - - tlobj = ges_track_object_get_timeline_object (track_object); - layer = ges_timeline_object_get_layer (tlobj); - tckobjs_in_layer = track_get_by_layer (layer, track); - if (!(compared = g_list_find (tckobjs_in_layer, track_object))) - return; - do { - compared = compared->prev; - - if (compared == NULL) { - /* Nothing before, let's check after */ - calculate_next_transition_with_list (track_object, tckobjs_in_layer, - layer); - goto done; - - } - } while (!GES_IS_TRACK_SOURCE (compared->data)); - - compare (compared, track_object, TRUE); - - calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer); - -done: - g_list_foreach (tckobjs_in_layer, (GFunc) g_object_unref, NULL); - g_list_free (tckobjs_in_layer); -} - - /* Compare: * @compared: The #GList of #GESTrackObjects that we compare with @track_object * @track_object: The #GESTrackObject that serves as a reference @@ -749,30 +404,191 @@ compare (GList * compared, GESTrackObject * track_object, gboolean ahead) start + duration - compared_start, NULL); } -clean: - g_object_unref (layer); +clean: + g_object_unref (layer); +} + +static void +calculate_next_transition_with_list (GESTrackObject * track_object, + GList * tckobjs_in_layer, GESTimelineLayer * layer) +{ + GList *compared; + + if (!(compared = g_list_find (tckobjs_in_layer, track_object))) + return; + + if (compared == NULL) + /* This is the last TrackObject of the Track */ + return; + + do { + compared = compared->next; + if (compared == NULL) + return; + } while (!GES_IS_TRACK_SOURCE (compared->data)); + + compare (compared, track_object, FALSE); +} + + +static void +calculate_next_transition (GESTrackObject * track_object, + GESTimelineLayer * layer) +{ + GESTrack *track; + GList *tckobjs_in_layer; + + if ((track = ges_track_object_get_track (track_object))) { + tckobjs_in_layer = track_get_by_layer (layer, track); + calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer); + + g_list_foreach (tckobjs_in_layer, (GFunc) g_object_unref, NULL); + g_list_free (tckobjs_in_layer); + } +} + +static void +calculate_transitions (GESTrackObject * track_object) +{ + GList *tckobjs_in_layer, *compared; + GESTimelineLayer *layer; + GESTimelineObject *tlobj; + + GESTrack *track = ges_track_object_get_track (track_object); + + if (track == NULL) + return; + + tlobj = ges_track_object_get_timeline_object (track_object); + layer = ges_timeline_object_get_layer (tlobj); + tckobjs_in_layer = track_get_by_layer (layer, track); + if (!(compared = g_list_find (tckobjs_in_layer, track_object))) + return; + do { + compared = compared->prev; + + if (compared == NULL) { + /* Nothing before, let's check after */ + calculate_next_transition_with_list (track_object, tckobjs_in_layer, + layer); + goto done; + + } + } while (!GES_IS_TRACK_SOURCE (compared->data)); + + compare (compared, track_object, TRUE); + + calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer); + +done: + g_list_foreach (tckobjs_in_layer, (GFunc) g_object_unref, NULL); + g_list_free (tckobjs_in_layer); +} + + +static void +look_for_transition (GESTrackObject * track_object, GESTimelineLayer * layer) +{ + GESTrack *track; + 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); + + for (tmp = cur->next; tmp; tmp = tmp->next) { + if (GES_IS_TRACK_SOURCE (tmp->data)) { + break; + } + if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) + || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { + ges_timeline_layer_remove_object (layer, + ges_track_object_get_timeline_object (tmp->data)); + } + } + + for (tmp = cur->prev; tmp; tmp = tmp->prev) { + if (GES_IS_TRACK_SOURCE (tmp->data)) { + break; + } + if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) + || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { + ges_timeline_layer_remove_object (layer, + ges_track_object_get_timeline_object (tmp->data)); + } + } + g_list_foreach (track_objects, (GFunc) g_object_unref, NULL); + g_list_free (track_objects); +} + +/** + * ges_timeline_layer_resync_priorities: + * @layer: a #GESTimelineLayer + * + * Resyncs the priorities of the objects controlled by @layer. + * This method + */ +static gboolean +ges_timeline_layer_resync_priorities (GESTimelineLayer * layer) +{ + GList *tmp; + GESTimelineObject *obj; + + GST_DEBUG ("Resync priorities of %p", layer); + + /* TODO : Inhibit composition updates while doing this. + * Ideally we want to do it from an even higher level, but here will + * do in the meantime. */ + + for (tmp = layer->priv->objects_start; tmp; tmp = tmp->next) { + obj = GES_TIMELINE_OBJECT (tmp->data); + ges_timeline_object_set_priority (obj, GES_TIMELINE_OBJECT_PRIORITY (obj)); + } + + return TRUE; +} + +/* Callbacks */ + +static void +track_object_duration_cb (GESTrackObject * track_object, + GParamSpec * arg G_GNUC_UNUSED) +{ + GESTimelineLayer *layer; + GESTimelineObject *tlobj; + + tlobj = ges_track_object_get_timeline_object (track_object); + layer = ges_timeline_object_get_layer (tlobj); + if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object))) + calculate_next_transition (track_object, layer); } static void -look_for_transition (GESTrackObject * track_object, GESTimelineLayer * layer) +track_object_removed_cb (GESTrack * track, GESTrackObject * track_object) { - GESTrack *track; GList *track_objects, *tmp, *cur; - - track = ges_track_object_get_track (track_object); + GESTimelineLayer *layer; track_objects = ges_track_get_objects (track); - cur = g_list_find (track_objects, track_object); - for (tmp = cur->next; tmp; tmp = tmp->next) { if (GES_IS_TRACK_SOURCE (tmp->data)) { break; } if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { - ges_timeline_layer_remove_object (layer, - ges_track_object_get_timeline_object (tmp->data)); + layer = + ges_timeline_object_get_layer (ges_track_object_get_timeline_object + (tmp->data)); + if (ges_timeline_layer_get_auto_transition (layer)) { + ges_track_enable_update (track, FALSE); + ges_timeline_layer_remove_object (layer, + ges_track_object_get_timeline_object (tmp->data)); + ges_track_enable_update (track, TRUE); + } + g_object_unref (layer); } } @@ -782,15 +598,72 @@ look_for_transition (GESTrackObject * track_object, GESTimelineLayer * layer) } if (GES_IS_TRACK_AUDIO_TRANSITION (tmp->data) || GES_IS_TRACK_VIDEO_TRANSITION (tmp->data)) { - ges_timeline_layer_remove_object (layer, - ges_track_object_get_timeline_object (tmp->data)); + layer = + ges_timeline_object_get_layer (ges_track_object_get_timeline_object + (tmp->data)); + if (ges_timeline_layer_get_auto_transition (layer)) { + ges_track_enable_update (track, FALSE); + ges_timeline_layer_remove_object (layer, + ges_track_object_get_timeline_object (tmp->data)); + ges_track_enable_update (track, TRUE); + } + g_object_unref (layer); } } - g_list_foreach (track_objects, (GFunc) g_object_unref, NULL); - g_list_free (track_objects); + g_object_unref (track_object); +} + +static void +track_object_changed_cb (GESTrackObject * track_object, + GParamSpec * arg G_GNUC_UNUSED) +{ + if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object))) + calculate_transitions (track_object); +} + +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); + g_signal_connect (G_OBJECT (track_object), "notify::duration", + G_CALLBACK (track_object_duration_cb), NULL); + calculate_transitions (track_object); + } + +} + +static void +track_removed_cb (GESTrack * track, GESTrackObject * track_object, + GESTimelineLayer * layer) +{ + 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 +timeline_object_height_changed_cb (GESTimelineObject * obj, + GESTrackEffect * tr_eff, GESTimelineObject * second_obj) +{ + gint priority, height; + g_object_get (obj, "height", &height, "priority", &priority, NULL); + g_object_set (second_obj, "priority", priority + height, NULL); +} +/* Public methods */ /** * ges_timeline_layer_remove_object: * @layer: a #GESTimelineLayer @@ -852,33 +725,6 @@ ges_timeline_layer_remove_object (GESTimelineLayer * layer, return TRUE; } -/** - * ges_timeline_layer_resync_priorities: - * @layer: a #GESTimelineLayer - * - * Resyncs the priorities of the objects controlled by @layer. - * This method - */ -gboolean -ges_timeline_layer_resync_priorities (GESTimelineLayer * layer) -{ - GList *tmp; - GESTimelineObject *obj; - - GST_DEBUG ("Resync priorities of %p", layer); - - /* TODO : Inhibit composition updates while doing this. - * Ideally we want to do it from an even higher level, but here will - * do in the meantime. */ - - for (tmp = layer->priv->objects_start; tmp; tmp = tmp->next) { - obj = GES_TIMELINE_OBJECT (tmp->data); - ges_timeline_object_set_priority (obj, GES_TIMELINE_OBJECT_PRIORITY (obj)); - } - - return TRUE; -} - /** * ges_timeline_layer_set_priority: * @layer: a #GESTimelineLayer @@ -1018,3 +864,137 @@ ges_timeline_layer_is_empty (GESTimelineLayer * layer) return (layer->priv->objects_start == NULL); } + +/** + * ges_timeline_layer_add_object: + * @layer: a #GESTimelineLayer + * @object: (transfer full): the #GESTimelineObject to add. + * + * Adds the given object to the layer. Sets the object's parent, and thus + * takes ownership of the object. + * + * An object can only be added to one layer. + * + * Calling this method will construct and properly set all the media related + * elements on @object. If you need to know when those objects (actually #GESTrackObject) + * are constructed, you should connect to the object::track-object-added signal which + * is emited right after those elements are ready to be used. + * + * Returns: TRUE if the object was properly added to the layer, or FALSE + * if the @layer refuses to add the object. + */ +gboolean +ges_timeline_layer_add_object (GESTimelineLayer * layer, + GESTimelineObject * object) +{ + GESTimelineLayer *tl_obj_layer; + guint32 maxprio, minprio, prio; + + GST_DEBUG ("layer:%p, object:%p", layer, object); + + tl_obj_layer = ges_timeline_object_get_layer (object); + + if (G_UNLIKELY (tl_obj_layer)) { + GST_WARNING ("TimelineObject %p already belongs to another layer", object); + g_object_unref (tl_obj_layer); + return FALSE; + } + + g_object_ref_sink (object); + + /* Take a reference to the object and store it stored by start/priority */ + layer->priv->objects_start = + g_list_insert_sorted (layer->priv->objects_start, object, + (GCompareFunc) objects_start_compare); + + /* Inform the object it's now in this layer */ + ges_timeline_object_set_layer (object, layer); + + GST_DEBUG ("current object priority : %d, layer min/max : %d/%d", + GES_TIMELINE_OBJECT_PRIORITY (object), + layer->min_gnl_priority, layer->max_gnl_priority); + + /* Set the priority. */ + maxprio = layer->max_gnl_priority; + minprio = layer->min_gnl_priority; + prio = GES_TIMELINE_OBJECT_PRIORITY (object); + if (minprio + prio > (maxprio)) { + GST_WARNING ("%p is out of the layer %p space, setting its priority to " + "setting its priority %d to failthe maximum priority of the layer %d", + object, layer, prio, maxprio - minprio); + ges_timeline_object_set_priority (object, LAYER_HEIGHT - 1); + } + /* If the object has an acceptable priority, we just let it with its current + * priority */ + + ges_timeline_layer_resync_priorities (layer); + + /* emit 'object-added' */ + g_signal_emit (layer, ges_timeline_layer_signals[OBJECT_ADDED], 0, object); + + return TRUE; +} + +/** + * ges_timeline_layer_new: + * + * Creates a new #GESTimelineLayer. + * + * Returns: A new #GESTimelineLayer + */ +GESTimelineLayer * +ges_timeline_layer_new (void) +{ + return g_object_new (GES_TYPE_TIMELINE_LAYER, NULL); +} + +/** + * ges_timeline_layer_get_timeline: + * @layer: The #GESTimelineLayer to get the parent #GESTimeline from + * + * Get the #GESTimeline in which #GESTimelineLayer currently is. + * + * Returns: (transfer none): the #GESTimeline in which #GESTimelineLayer + * currently is or %NULL if not in any timeline yet. + */ +GESTimeline * +ges_timeline_layer_get_timeline (GESTimelineLayer * layer) +{ + g_return_val_if_fail (GES_IS_TIMELINE_LAYER (layer), NULL); + + return layer->timeline; +} + +void +ges_timeline_layer_set_timeline (GESTimelineLayer * layer, + GESTimeline * timeline) +{ + 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; +} -- 2.34.1