Returns whether or not this delegate should draw columns when \
        rendering the grid.
        
        :return     <bool>

def showGridColumns( self ):
        """
        Returns whether or not this delegate should draw columns when \
        rendering the grid.
        
        :return     <bool>
        """
        delegate = self.itemDelegate()
        if ( isinstance(delegate, XTreeWidgetDelegate) ):
            return delegate.showGridColumns()
        return False