typedef Gtk::TreeModelColumn<std::string> StringColumn;
typedef Gtk::TreeModelColumn<bool> BoolColumn;
typedef Gtk::TreeModelColumn<uint32_t> UnsignedColumn;
typedef Gtk::TreeModelColumn<AxisView*> AVColumn;
typedef Gtk::TreeModelColumn<boost::shared_ptr<ARDOUR::Stripable> > StripableColumn;
typedef Gtk::TreeModelColumn<std::string> StringColumn;
typedef Gtk::TreeModelColumn<bool> BoolColumn;
typedef Gtk::TreeModelColumn<uint32_t> UnsignedColumn;
typedef Gtk::TreeModelColumn<AxisView*> AVColumn;
typedef Gtk::TreeModelColumn<boost::shared_ptr<ARDOUR::Stripable> > StripableColumn;