+ /** A VisibilityGroup to manage the visibility of some of our controls.
+ * We fill it with the controls that are being managed, using the same names
+ * as those used with _mixer_strip_visibility in RCOptionEditor. Then
+ * this VisibilityGroup is configured by changes to the RC variable
+ * mixer-strip-visibility, which happen when the user makes changes in
+ * the RC option editor.
+ */
+ VisibilityGroup _visibility;
+ boost::optional<bool> override_solo_visibility () const;
+
+ PBD::ScopedConnection _config_connection;
+
+ void add_input_port (ARDOUR::DataType);
+ void add_output_port (ARDOUR::DataType);
+
+ bool level_meter_button_press (GdkEventButton *);
+ void popup_level_meter_menu (GdkEventButton *);
+ void add_level_meter_item (Gtk::Menu_Helpers::MenuList &, Gtk::RadioMenuItem::Group &, std::string const &, ARDOUR::MeterPoint);
+ void set_meter_point (ARDOUR::MeterPoint);
+ PBD::ScopedConnection _level_meter_connection;
+