- automation_items.push_back (CheckMenuElem (_("Pan"), sigc::mem_fun (*this, &AudioTimeAxisView::update_pan_track_visibility)));
- pan_automation_item = dynamic_cast<Gtk::CheckMenuItem*> (&automation_items.back ());
- pan_automation_item->set_active ((!for_selection || _editor.get_selection().tracks.size() == 1) &&
- (!pan_tracks.empty() && string_is_affirmative (pan_tracks.front()->gui_property ("visible"))));
+ if (!pan_tracks.empty()) {
+ automation_items.push_back (CheckMenuElem (_("Pan"), sigc::mem_fun (*this, &AudioTimeAxisView::update_pan_track_visibility)));
+ pan_automation_item = dynamic_cast<Gtk::CheckMenuItem*> (&automation_items.back ());
+ pan_automation_item->set_active ((!for_selection || _editor.get_selection().tracks.size() == 1) &&
+ (!pan_tracks.empty() && string_is_affirmative (pan_tracks.front()->gui_property ("visible"))));