/* GStreamer Editing Services
 * Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
 *               2009 Nokia Corporation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef _GES_CUST_TIMELINE_SRC
#define _GES_CUST_TIMELINE_SRC

#include <glib-object.h>
#include <ges/ges-types.h>
#include <ges/ges-timeline-source.h>

G_BEGIN_DECLS

#define GES_TYPE_CUSTOM_TIMELINE_SOURCE ges_cust_timeline_src_get_type()

#define GES_CUSTOM_TIMELINE_SOURCE(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_CUSTOM_TIMELINE_SOURCE, GESCustomTimelineSource))

#define GES_CUSTOM_TIMELINE_SOURCE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_CUSTOM_TIMELINE_SOURCE, GESCustomTimelineSourceClass))

#define GES_IS_CUSTOM_TIMELINE_SOURCE(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_CUSTOM_TIMELINE_SOURCE))

#define GES_IS_CUSTOM_TIMELINE_SOURCE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_CUSTOM_TIMELINE_SOURCE))

#define GES_CUSTOM_TIMELINE_SOURCE_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_CUSTOM_TIMELINE_SOURCE, GESCustomTimelineSourceClass))

/**
 * FillTrackObjectUserFunc:
 * @object: the #GESTimelineObject controlling the track object
 * @trobject: the #GESTrackObject
 * @gnlobj: the GNonLin object that needs to be filled.
 * @user_data: the gpointer to optional user data
 *
 * A function that will be called when the GNonLin object of a corresponding
 * track object needs to be filled.
 *
 * The implementer of this function shall add the proper #GstElement to @gnlobj
 * using gst_bin_add().
 *
 * Returns: TRUE if the implementer succesfully filled the @gnlobj, else #FALSE.
 */
typedef gboolean (*FillTrackObjectUserFunc) (GESTimelineObject * object,
					     GESTrackObject * trobject,
					     GstElement * gnlobj,
					     gpointer user_data);


struct _GESCustomTimelineSource {
  GESTimelineSource parent;

  FillTrackObjectUserFunc filltrackobjectfunc;
  gpointer user_data;
};

struct _GESCustomTimelineSourceClass {
  GESTimelineSourceClass parent_class;
};

GType ges_cust_timeline_src_get_type (void);

GESCustomTimelineSource*
ges_custom_timeline_source_new (FillTrackObjectUserFunc func,
				gpointer user_data);

G_END_DECLS

#endif /* _GES_CUST_TIMELINE_SRC */