How to show custom widget in TreeView's cell :-/

[jpn]

• When would you like a custom editor to be shown?
• When would you like it to be closed?
• In what way does it work differently than spinbox delegate?
• Actually the delegate itself is nothing visible, but it does render items and provide editors.
• Could we see the delegate code?

[WolfMM]

All right...
Problem solved... Don't use a gun, where fly swatter is good enough.
There is QAbstractItemView::setIndexWidget (QModelIndex&, QWidget*) function and that's all folks. I was looking for in wrong direction :-\

But thanks anyway