HYTOS

    def validate(self):

        """ validation check """

        errors = []

        try:

            app_doc_data = AppDocData.instance()

            dataPath = app_doc_data.getErrorItemSvgPath()

            # check overlapping

            texts = [item for item in self.scene().items() if item is not self and issubclass(type(item), QEngineeringTextItem)]

            for text in texts:

                textRect = text.sceneBoundingRect()

                rect1 = QRectF(textRect.left() - 3, textRect.top() - 3, textRect.width() + 6, textRect.height() + 6)

                rect2 = QRectF(textRect.left() + 3, textRect.top() + 3, textRect.width() - 6, textRect.height() - 6)

                if rect1.contains(self.sceneBoundingRect()) or rect2.contains(self.sceneBoundingRect().center()):

                    error = SymbolSvgItem.createItem('Error', None, dataPath)

                    error.parent = self

                    error.msg = self.tr('Text overlapping error')

                    error.setToolTip(error.msg)

                    error.area = self.area

                    error.name = 'Error'

                    errors.append(error)

                    error.setPosition([self.sceneBoundingRect().center().x(), self.sceneBoundingRect().center().y()])

        except Exception as ex:

            from App import App

            message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename,

                                                          sys.exc_info()[-1].tb_lineno)

            App.mainWnd().addMessage.emit(MessageType.Error, message)

        return errors