playlist_selection.h

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/*
    Copyright (C) 2000-2007 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_gtk_playlist_selection_h__
#define __ardour_gtk_playlist_selection_h__

#include <list>
#include <boost/shared_ptr.hpp>

namespace ARDOUR {
        class Playlist;
}

struct PlaylistSelection : std::list<boost::shared_ptr<ARDOUR::Playlist> > {
public:
        const_iterator
        get_nth(ARDOUR::DataType type, size_t nth) const {
                size_t count = 0;
                for (const_iterator l = begin(); l != end(); ++l) {
                        if ((*l)->data_type() == type) {
                                if (count++ == nth) {
                                        return l;
                                }
                        }
                }
                return end();
        }
};

#endif /* __ardour_gtk_playlist_selection_h__ */