def showTabMenu(self, panel, point=None):
        """
        Creates the panel menu for this view widget.  If no point is supplied,\
        then the current cursor position will be used.
        
        :param      panel   | <XViewPanel>
                    point   | <QPoint> || None
        """
        if not self._tabMenu:
            self._tabMenu = XViewTabMenu(self)

        if point is None:
            point = QtGui.QCursor.pos()

        self._tabMenu.setCurrentPanel(panel)
        self._tabMenu.exec_(point)