convert_path_to_child_path
Description:
Converts filter_path to a path on the child model of this.
That is, filter_path points to a location in this. The returned path will point to the same
location in the model not being filtered. If filter_path does not point to a location in the child model,
null is returned.
Parameters:
| this | |
| filter_path |
A TreePath to convert. |
Returns:
|
A newly allocated TreePath, or null. |