convert_child_path_to_path

Converts child_path to a path relative to this.

That is, child_path points to a path in the child model. The returned path will point to the same row in the sorted model. If child_path isn’t a valid path on the child model, then null is returned.

Parameters:

this	A TreeModelSort
child_path	A TreePath to convert

Returns:

A newly allocated TreePath, or null