fix for crashing bug with empty panners

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@5927 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/gtk2_ardour/panner_ui.cc b/gtk2_ardour/panner_ui.cc
index ed482e37269346d1990eccbbe140807eda81ca67..1974f72821de57975f93a62cdd3dff7910e88774 100644 (file)
--- a/gtk2_ardour/panner_ui.cc
+++ b/gtk2_ardour/panner_ui.cc
@@ -204,6 +204,10 @@ PannerUI::build_astyle_menu ()
 PBD::Controllable* 
 PannerUI::get_controllable() 
 { 
+       if (pan_bars.empty()) {
+               return 0;
+       }
+
        return pan_bars[0]->get_controllable();
 }