Sets whether or not the delegate should render rich text information \
        as HTML when drawing the contents of the item.
        
        :param      state | <bool>

def setShowRichText( self, state ):
        """
        Sets whether or not the delegate should render rich text information \
        as HTML when drawing the contents of the item.
        
        :param      state | <bool>
        """
        delegate = self.itemDelegate()
        if isinstance(delegate, XTreeWidgetDelegate):
            delegate.setShowRichText(state)