+ boost::shared_ptr<ARDOUR::MidiTrack> track;
+
+ /** connection used to connect to model's ContentChanged signal */
+ PBD::ScopedConnection content_connection;
+
+ void edited (const std::string&, const std::string&);
+ void editing_started (Gtk::CellEditable*, const std::string& path, int);
+ void editing_canceled ();
+ void stop_editing (bool cancelled = false);