rv.py 文件源码

def check_state(self, *args, **kwargs):
        """
        Update the background color of a QLineEdit object based on whether the
        input is valid.
        """

        sender = self.sender()
        validator = sender.validator()
        state = validator.validate(sender.text(), 0)[0]
        if state == QtGui.QValidator.Acceptable:
            color = 'none' # normal background color
        elif state == QtGui.QValidator.Intermediate:
            color = '#fff79a' # yellow
        else:
            color = '#f6989d' # red
        sender.setStyleSheet('QLineEdit { background-color: %s }' % color)