55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/*
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* Copyright (C) 2011-2013 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2011 Carl Hetherington <carl@carlh.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __libardour_region_sorters_h__
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#define __libardour_region_sorters_h__
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#include "ardour/region.h"
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namespace ARDOUR {
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struct LIBARDOUR_API RegionSortByPosition {
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bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
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return a->position() < b->position();
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}
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};
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struct LIBARDOUR_API RegionSortByLayer {
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bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
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return a->layer() < b->layer();
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}
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};
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/* sort by RegionSortByLayerAndPosition()
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* is equivalent to
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* stable_sort by RegionSortByPosition();
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* stable_sort by RegionSortByLayer();
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*/
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struct LIBARDOUR_API RegionSortByLayerAndPosition {
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bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
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return
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(a->layer() < b->layer() && a->position() < b->position())
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|| (a->layer() == b->layer() && a->position() < b->position());
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}
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};
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} // namespace
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#endif /* __libardour_region_sorters_h__ */
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