def filterAcceptsRow(self, row, parent):
        """
        Reimplements the :meth:`QSortFilterProxyModel.filterAcceptsRow` method.

        :param row: Source row.
        :type row: int
        :param parent: Source parent.
        :type parent: QModelIndex
        :return: Filter result
        :rtype: bool
        """

        child = self.sourceModel().get_node(parent).child(row)
        if isinstance(child, EditorNode):
            return False

        return True