consolidate SignalOrderRouteSorter

1 files changed, 44 insertions, 0 deletions

diff --git a/libs/ardour/ardour/route_sorters.h b/libs/ardour/ardour/route_sorters.h
new file mode 100644
index 0000000000..022d5a24c3
--- /dev/null
+++ b/libs/ardour/ardour/route_sorters.h
@@ -0,0 +1,44 @@
+/*
+    Copyright (C) 2000-2014 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 __libardour_route_sorters_h__
+#define __libardour_route_sorters_h__
+
+#include "ardour/route.h"
+
+namespace ARDOUR {
+
+struct SignalOrderRouteSorter {
+	bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
+		if (a->is_master() || a->is_monitor()) {
+			/* "a" is a special route (master, monitor, etc), and comes
+			 * last in the mixer ordering
+			 */
+			return false;
+		} else if (b->is_master() || b->is_monitor()) {
+			/* everything comes before b */
+			return true;
+		}
+		return a->order_key () < b->order_key ();
+	}
+};
+
+} // namespace
+
+#endif /* __libardour_route_sorters_h__ */