Returns the rollout item at the inputed index.
        
        :return     <XRolloutItem> || None

def itemAt( self, index ):
        """
        Returns the rollout item at the inputed index.
        
        :return     <XRolloutItem> || None
        """
        layout = self.widget().layout()
        if ( 0 <= index and index < (layout.count() - 1) ):
            return layout.itemAt(index).widget()
        return None