'Scroll the browser and open categories to show the item referenced by
path. If possible, the item is placed in the center. If box=True, a
box is drawn around the item.'

def show_item_at_path(self, path, box=False, position=QTreeView.PositionAtCenter):

    if path:
        self.show_item_at_index(self._model.index_for_path(path), box=box, position=position)
