torrent_gui.py 文件源码

def _update_checkboxes(self, item: QTreeWidgetItem, column: int):
        if column != 0:
            return

        new_check_state = item.checkState(0)
        self._set_check_state_to_tree(item, new_check_state)

        while True:
            item = item.parent()
            if item is None:
                break

            has_checked_children = False
            has_partially_checked_children = False
            has_unchecked_children = False
            for i in range(item.childCount()):
                state = item.child(i).checkState(0)
                if state == Qt.Checked:
                    has_checked_children = True
                elif state == Qt.PartiallyChecked:
                    has_partially_checked_children = True
                else:
                    has_unchecked_children = True

            if not has_partially_checked_children and not has_unchecked_children:
                new_state = Qt.Checked
            elif has_checked_children or has_partially_checked_children:
                new_state = Qt.PartiallyChecked
            else:
                new_state = Qt.Unchecked
            item.setCheckState(0, new_state)

        self._update_selection_label()