def update_sensitivity(self):
        BaseWindow.update_sensitivity(self)

        some_need_calculate = False
        for editor in self.editors:
            if editor.needs_calculate:
                some_need_calculate = True

        self._set_action_sensitive('calculate-all', some_need_calculate)
    def update_sensitivity(self):
        BaseWindow.update_sensitivity(self)

        some_need_calculate = False
        for editor in self.editors:
            if editor.needs_calculate:
                some_need_calculate = True

        self._set_action_sensitive('calculate-all', some_need_calculate)