def __init__(self, engine, menu_name):
self._engine = engine
self._menu_name = menu_name
self._dialogs = []
self._widget = QtWidgets.QWidget()
self._handle = QtWidgets.QMenu(self._menu_name, self._widget)
self._ui_cache = []
def _add_sub_menu(self, menu_name, parent_menu):
sub_menu = QtWidgets.QMenu(title=menu_name, parent=parent_menu)
parent_menu.addMenu(sub_menu)
return sub_menu