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source.h

/*
    Copyright (C) 2000 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_source_h__
#define __ardour_source_h__

#include <string>
#include <set>

#include <sigc++/signal.h>

#include <pbd/statefuldestructible.h> 

#include <ardour/ardour.h>

namespace ARDOUR {

class Session;
class Playlist;

class Source : public PBD::StatefulDestructible
{
  public:
      Source (Session&, std::string name);
      Source (Session&, const XMLNode&);
      virtual ~Source ();

      std::string name() const { return _name; }
      int set_name (std::string str, bool destructive);

      time_t timestamp() const { return _timestamp; }
      void stamp (time_t when) { _timestamp = when; }

      XMLNode& get_state ();
      int set_state (const XMLNode&);

      void use () { _in_use++; }
      void disuse () { if (_in_use) { _in_use--; } }

      void add_playlist (boost::shared_ptr<ARDOUR::Playlist>);
      void remove_playlist (boost::weak_ptr<ARDOUR::Playlist>);

      uint32_t used() const;

  protected:
      Session&          _session;
      string            _name;
      time_t            _timestamp;

      Glib::Mutex playlist_lock;
      typedef std::map<boost::shared_ptr<ARDOUR::Playlist>, uint32_t > PlaylistMap;
      PlaylistMap _playlists;

  private:
      uint32_t          _in_use;
};

}

#endif /* __ardour_source_h__ */

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