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/*
Copyright (C) 2003 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_audio_playlist_h__
#define __ardour_audio_playlist_h__
#include <vector>
#include <list>
#include "ardour/ardour.h"
#include "ardour/playlist.h"
namespace ARDOUR {
class Session;
class Region;
class AudioRegion;
class Source;
class AudioPlaylist : public ARDOUR::Playlist
{
public:
typedef std::list<boost::shared_ptr<Crossfade> > Crossfades;
public:
AudioPlaylist (Session&, const XMLNode&, bool hidden = false);
AudioPlaylist (Session&, std::string name, bool hidden = false);
AudioPlaylist (boost::shared_ptr<const AudioPlaylist>, std::string name, bool hidden = false);
AudioPlaylist (boost::shared_ptr<const AudioPlaylist>, nframes_t start, nframes_t cnt, std::string name, bool hidden = false);
~AudioPlaylist ();
void clear (bool with_signals=true);
nframes_t read (Sample *dst, Sample *mixdown, float *gain_buffer, nframes_t start, nframes_t cnt, uint32_t chan_n=0);
int set_state (const XMLNode&, int version);
sigc::signal<void,boost::shared_ptr<Crossfade> > NewCrossfade;
void foreach_crossfade (sigc::slot<void, boost::shared_ptr<Crossfade> >);
void crossfades_at (nframes_t frame, Crossfades&);
bool destroy_region (boost::shared_ptr<Region>);
protected:
/* playlist "callbacks" */
void notify_crossfade_added (boost::shared_ptr<Crossfade>);
void flush_notifications ();
void finalize_split_region (boost::shared_ptr<Region> orig, boost::shared_ptr<Region> left, boost::shared_ptr<Region> right);
void refresh_dependents (boost::shared_ptr<Region> region);
void check_dependents (boost::shared_ptr<Region> region, bool norefresh);
void remove_dependents (boost::shared_ptr<Region> region);
private:
Crossfades _crossfades;
Crossfades _pending_xfade_adds;
void crossfade_invalidated (boost::shared_ptr<Region>);
XMLNode& state (bool full_state);
void dump () const;
bool region_changed (Change, boost::shared_ptr<Region>);
void crossfade_changed (Change);
void add_crossfade (boost::shared_ptr<Crossfade>);
void source_offset_changed (boost::shared_ptr<AudioRegion> region);
};
} /* namespace ARDOUR */
#endif /* __ardour_audio_playlist_h__ */
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