sigc::signal<void> WidthChanged;
/** The delivery that we are handling the level for with our fader has changed */
sigc::signal<void> WidthChanged;
/** The delivery that we are handling the level for with our fader has changed */
Gtk::Button gain_unit_button;
Gtk::Label gain_unit_label;
Gtk::Button meter_point_button;
Gtk::Button gain_unit_button;
Gtk::Label gain_unit_label;
Gtk::Button meter_point_button;
void update_io_button (boost::shared_ptr<ARDOUR::Route> route, Width width, bool input_button);
void port_connected_or_disconnected (ARDOUR::Port *, ARDOUR::Port *);
void update_io_button (boost::shared_ptr<ARDOUR::Route> route, Width width, bool input_button);
void port_connected_or_disconnected (ARDOUR::Port *, ARDOUR::Port *);