def te_check_parts_name(self, _=None):

te_name_edit.currentTextChanged.connect(self.te_check_parts_name)
part_list.currentItemChanged.connect(self.te_check_parts_name)

def te_check_parts_name(self, _=None):
    """检查当前输入的节点名是否重复"""
    te_add_part_button = self.findChild(ToolButton, 'add_part_button')
    te_edit_part_button = self.findChild(ToolButton, 'edit_part_button')
    te_name_edit = self.findChild(EditableComboBox, 'name_part_combo')
    part_list = self.findChild(ListWidget, 'part_list')

    if te_add_part_button is None and te_edit_part_button is None:
        return

    name = (te_name_edit.currentText() if te_name_edit else "").strip()
    norm_name = name.lower()
    if not norm_name:
        if te_add_part_button: te_add_part_button.setEnabled(False)
        if te_edit_part_button: te_edit_part_button.setEnabled(False)
        return

    current_item = part_list.currentItem() if part_list else None

    for i in range(part_list.count() if part_list else 0):
        item = part_list.item(i)
        if not item: continue
        part_name = item.text().split(' - ', 1)[0].strip()
        if part_name.lower() == norm_name:
            if current_item is item:
                if te_add_part_button: te_add_part_button.setEnabled(False)
                if te_edit_part_button: te_edit_part_button.setEnabled(True)
            else:
                if te_add_part_button: te_add_part_button.setEnabled(False)
                if te_edit_part_button: te_edit_part_button.setEnabled(False)
            return

    if te_add_part_button: te_add_part_button.setEnabled(True)
    if te_edit_part_button: te_edit_part_button.setEnabled(True)