more improvements for range drag/track selection logic etc.

git-svn-id: svn://localhost/ardour2/branches/3.0@7714 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 22 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_route_groups.cc b/gtk2_ardour/editor_route_groups.cc
index 31ab21c2bf..88c74182f8 100644
--- a/gtk2_ardour/editor_route_groups.cc
+++ b/gtk2_ardour/editor_route_groups.cc
@@ -487,10 +487,20 @@ EditorRouteGroups::set_session (Session* s)
 	SessionHandlePtr::set_session (s);
 
 	if (_session) {
+
+                RouteGroup& arg (_session->all_route_group());
+                
+                arg.PropertyChanged.connect (property_changed_connection, MISSING_INVALIDATOR, ui_bind (&EditorRouteGroups::all_group_changed, this, _1), gui_context());
+
 		_session->route_group_added.connect (_session_connections, MISSING_INVALIDATOR, ui_bind (&EditorRouteGroups::add, this, _1), gui_context());
 		_session->route_group_removed.connect (_session_connections, MISSING_INVALIDATOR, boost::bind (&EditorRouteGroups::groups_changed, this), gui_context());
 	}
 
+        PBD::PropertyChange pc;
+        pc.add (Properties::select);
+        pc.add (Properties::active);
+        all_group_changed (pc);
+
 	groups_changed ();
 }
 
@@ -510,3 +520,15 @@ EditorRouteGroups::all_group_toggled ()
         }
 }
 
+void
+EditorRouteGroups::all_group_changed (const PropertyChange&)
+{
+        if (_session) {
+                RouteGroup& arg (_session->all_route_group());
+                _all_group_active_button.set_active (arg.is_active() && arg.is_select());
+        } else {
+                _all_group_active_button.set_active (false);
+        }
+
+}
+