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/*
Copyright (C) 2011 Paul Davis
Author: Carl Hetherington <cth@carlh.net>
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.
*/
#include "pbd/id.h"
#include "pbd/memento_command.h"
class XMLNode;
namespace ARDOUR {
class Crossfade;
class Playlist;
class SessionPlaylists;
/** A MementoCommandBinder for Crossfades; required because the undo record
* may contain details of crossfades that have subsequently been deleted.
* This class allows recovery of a crossfade from an ID once it has been
* recreated by a previous undo step.
*/
class CrossfadeBinder : public MementoCommandBinder<ARDOUR::Crossfade>
{
public:
CrossfadeBinder (boost::shared_ptr<ARDOUR::SessionPlaylists>, PBD::ID);
CrossfadeBinder (XMLNode *, boost::shared_ptr<SessionPlaylists>);
ARDOUR::Crossfade* get () const;
std::string type_name () const;
void add_state (XMLNode *);
private:
boost::shared_ptr<ARDOUR::SessionPlaylists> _playlists;
PBD::ID _id;
};
}
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