2 Copyright (C) 2000-2011 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __libardour_region_sorters_h__
21 #define __libardour_region_sorters_h__
23 #include "ardour/region.h"
27 struct LIBARDOUR_API RegionSortByPosition {
28 bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
29 return a->position() < b->position();
33 struct LIBARDOUR_API RegionSortByLayer {
34 bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
35 return a->layer() < b->layer();
39 /* sort by RegionSortByLayerAndPosition()
41 * stable_sort by RegionSortByPosition();
42 * stable_sort by RegionSortByLayer();
44 struct LIBARDOUR_API RegionSortByLayerAndPosition {
45 bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
47 (a->layer() < b->layer() && a->position() < b->position())
48 || (a->layer() == b->layer() && a->position() < b->position());
54 #endif /* __libardour_region_sorters_h__ */