[pygtk] Line wrapping in TreeView while editing

[Jendrik Seipp]

Hello everyone,
does anybody know if it's possible to enable line wrapping in TreeView 
cells while editing the cell? This feature would prevent having to 
scroll sideways to view the whole text.
I have already worked out the line wrapping feature for the cells after 
editing, but would like to have it also at the time the cells are edited.

Thanks for any help,
Jendrik