Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > icon;
Gtk::TreeModelColumn<Glib::ustring> label;
Gtk::TreeModelColumn<Glib::ustring> tooltip;
Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > icon;
Gtk::TreeModelColumn<Glib::ustring> label;
Gtk::TreeModelColumn<Glib::ustring> tooltip;