Returns whether or not the tree is holding richtext information and \
        should render HTML when drawing the data.
        
        :return     <bool>

def showRichText( self ):
        """
        Returns whether or not the tree is holding richtext information and \
        should render HTML when drawing the data.
        
        :return     <bool>
        """
        delegate = self.itemDelegate()
        if ( isinstance(delegate, XTreeWidgetDelegate) ):
            return delegate.showRichText()
        return None