ProtocolTreeModel.py 文件源码

def delete_group(self, group_item: ProtocolTreeItem):
        if self.rootItem.childCount() == 1:
            QMessageBox.critical(self.controller, self.tr("Group not deletable"),
                                 self.tr(
                                     "You can't delete the last group. Think about the children, they would be homeless!"))
            return

        group_id = self.rootItem.index_of(group_item)
        if group_id == 0:
            new_group_index = 1
        else:
            new_group_index = group_id - 1

        new_group = self.rootItem.children[new_group_index]

        for i in reversed(range(group_item.childCount())):
            new_group.appendChild(group_item.children[i])

        self.removeRow(group_id, QModelIndex())
        self.group_deleted.emit(group_id, new_group_index)