Shows the tool tip of the action that is currently being hovered over.
        
        :param      action | <QAction>

def showActionToolTip(self):
        """
        Shows the tool tip of the action that is currently being hovered over.
        
        :param      action | <QAction>
        """
        if ( not self.isVisible() ):
            return
            
        geom  = self.actionGeometry(self._toolTipAction)
        pos   = self.mapToGlobal(QPoint(geom.left(), geom.top()))
        pos.setY(pos.y() + geom.height())
        
        tip   = nativestring(self._toolTipAction.toolTip()).strip().strip('.')
        text  = nativestring(self._toolTipAction.text()).strip().strip('.')
        
        # don't waste time showing the user what they already see
        if ( tip == text ):
            return
        
        QToolTip.showText(pos, self._toolTipAction.toolTip())