Overloads the mouse move event to ignore the event when \
        the scene is in view mode.
        
        :param      event   <QMouseMoveEvent>

def mouseMoveEvent(self, event):
        """
        Overloads the mouse move event to ignore the event when \
        the scene is in view mode.
        
        :param      event   <QMouseMoveEvent>
        """
        # ignore events when the scene is in view mode
        scene = self.scene()
        if scene and (scene.inViewMode() or scene.isConnecting()):
            event.ignore()
            return

        # call the base method
        super(XNodeConnection, self).mouseMoveEvent(event)