def mouseMoveEvent(self, event):
        """ Handle the mouse move event for the widget.

        """
        event.ignore()
        if not self._press_pos.isNull():
            self.handleMoved.emit(self._press_pos - event.pos())
            event.accept()
dataset/ETHPy150Open nucleic/enaml/enaml/qt/docking/q_dock_bar.py/QDockBarItemHandle.mouseMoveEvent/swapped operands of `-`