Recursive filtering in tree itemmodel

[salcin]

Hi,

I would like to filter my tree item model recursivly both leafs and branches. See example below.
Source model:
- A
- B
- - C
- - - D
- - - - E
- - - - - F
- - - - - - G
- H
- I

To:
-B
- - D
- - - F

Does anyone know a proxymodel that will do this? or which approch to take.

Thanks!