Save route group reorderings in the session file. Link changes in the mixer and editor group lists (part of #3918).

git-svn-id: svn://localhost/ardour2/branches/3.0@9377 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 12 insertions, 0 deletions

diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index be29639a3b..f1bebae6e3 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -2298,9 +2298,21 @@ Session::remove_route_group (RouteGroup& rg)
 
 		route_group_removed (); /* EMIT SIGNAL */
 	}
+}
 
+/** Set a new order for our route groups, without adding or removing any.
+ *  @param groups Route group list in the new order.
+ */
+void
+Session::reorder_route_groups (list<RouteGroup*> groups)
+{
+	_route_groups = groups;
+
+	route_groups_reordered (); /* EMIT SIGNAL */
+	set_dirty ();
 }
 
+
 RouteGroup *
 Session::route_group_by_name (string name)
 {