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849d6ab872
This will give us margin for API expansion without breaking ABI. The ABI restriction will only come in place once we do the first official release (i.e. 0.x.0).
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _GES_TIMELINE_LAYER
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#define _GES_TIMELINE_LAYER
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#include <glib-object.h>
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#include <ges/ges-types.h>
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G_BEGIN_DECLS
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#define GES_TYPE_TIMELINE_LAYER ges_timeline_layer_get_type()
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#define GES_TIMELINE_LAYER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TIMELINE_LAYER, GESTimelineLayer))
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#define GES_TIMELINE_LAYER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TIMELINE_LAYER, GESTimelineLayerClass))
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#define GES_IS_TIMELINE_LAYER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TIMELINE_LAYER))
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#define GES_IS_TIMELINE_LAYER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TIMELINE_LAYER))
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#define GES_TIMELINE_LAYER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TIMELINE_LAYER, GESTimelineLayerClass))
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/**
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* GESTimelineLayer:
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* @timeline: the #GESTimeline where this layer is being used.
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*/
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struct _GESTimelineLayer {
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GObject parent;
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/*< public >*/
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GESTimeline *timeline;
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/*< private >*/
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GSList * objects_start; /* The TimelineObjects sorted by start and
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* priority */
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guint32 priority; /* The priority of the layer within the
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* containing timeline */
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guint32 min_gnl_priority, max_gnl_priority;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING];
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};
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/**
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* GESTimelineLayerClass:
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* @parent_class: layer parent class
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* @get_objects: method to get the objects contained in the layer
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*
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* Subclasses can override the @get_objects if they can provide a more
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* efficient way of providing the list of contained #GESTimelineObject(s).
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*/
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struct _GESTimelineLayerClass {
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GObjectClass parent_class;
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/*< public >*/
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/* virtual methods for subclasses */
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GList *(*get_objects) (GESTimelineLayer * layer);
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/*< private >*/
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/* Signals */
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void (*object_added) (GESTimelineLayer * layer, GESTimelineObject * object);
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void (*object_removed) (GESTimelineLayer * layer, GESTimelineObject * object);
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING];
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};
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GType ges_timeline_layer_get_type (void);
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GESTimelineLayer* ges_timeline_layer_new (void);
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void ges_timeline_layer_set_timeline (GESTimelineLayer * layer, GESTimeline * timeline);
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gboolean ges_timeline_layer_add_object (GESTimelineLayer * layer, GESTimelineObject * object);
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gboolean ges_timeline_layer_remove_object (GESTimelineLayer * layer, GESTimelineObject * object);
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void ges_timeline_layer_set_priority (GESTimelineLayer * layer, guint priority);
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GList * ges_timeline_layer_get_objects (GESTimelineLayer * layer);
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G_END_DECLS
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#endif /* _GES_TIMELINE_LAYER */
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