main_window.py 文件源码

def _build_menu_item(self, name, menu,
                         image=None,
                         on_signal="activate",
                         callback=None):
        """
        """
        menu_item = Gtk.MenuItem()
        if image:
            hbox = Gtk.Box(Gtk.Orientation.HORIZONTAL)
            try:
                icon = Gtk.Image.new_from_icon_name(image, 1)
            except TypeError:
                # ``image`` is a Gtk.Image already loaded.
                icon = image
            label = Gtk.Label(name)
            # accelerator = ?
            _pack_widgets(hbox, icon, label)
            menu_item.add(hbox)
            # use pack_end() to add an accelerator in a menu item with an image
        else:
            menu_item.set_label(name)

        if callback:
            menu_item.connect(on_signal, callback)

        menu.append(menu_item)
        return menu_item