fit_options.py 文件源码

def _int_handler(self):
        """
        Handler for int values.  Parses QLineEdit.
        """
        current = self._select_widget.text()
        try:

            # Make sure this scans as a string 
            if type(ast.literal_eval(current)) != int:
                raise ValueError   

            new_value = int(current)
            color = "#FFFFFF"
            self._current_value = new_value
            self._valid = True
        except ValueError:
            color = "#FFB6C1"
            self._valid = False

        self._select_widget.setStyleSheet("QLineEdit {{ background-color: {} }}".format(color))