Need help understanding QTreeWidget data structure

[anda_skoa]

Basically I just want to remove the selected item/row when I click a button, so what's the best method for doing that?

Just delete it.

not to mention there's no clear indication on how I'm supposed to get the index from the items

Each item knows its parent, each parent can give you the index of a child through indexOfChild()

Cheers,
_