How to view just a part of a model ?

[weepdoo]

Hye,

I'm actually developping an application in PyQt, with Qt4.1 and python 2.4
I have done my own QAbstractItemModel class (here 'M'), for managing my data (a tree like structure).
I've got already a QTreeView (here called 'S') connected to this model and it work great.

But, I would like that when a user click an element (or an index if you prefer here call 'I')of my tree:

• display a new window (here is 'C')in my workspace (easy)
• this window have a widget whitch is a treeview like item (just a treeview would be the best (I'm a bit lazy :P))
• the model for the view should be 'M' (such as for 'S') BUT i do not want to display the parent (and siblings) of 'I', just his children

I try to make a 'picture':

The Tree in 'S':
[A]
 |-[H]
 |-[I]
 |  |-[K]
 |  |-[L]
...
 
The quiet same tree in 'C':
[I]
 |-[K]
 |-[L]
...

The Tree in 'S':
[A]
 |-[H]
 |-[I]
 |  |-[K]
 |  |-[L]
...

The quiet same tree in 'C':
[I]
 |-[K]
 |-[L]
...

To copy to clipboard, switch view to plain text mode 

Does anyone know how can I do this ?