# Copyright (C) 2022 The Qt Company Ltd. # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause from PySide6.QtCore import QObject, Property, Signal class Document(QObject): textChanged = Signal(str) def __init__(self, parent=None): super().__init__(parent) self._text = '' def text(self): return self._text def setText(self, t): if t != self._text: self._text = t self.textChanged.emit(t) text = Property(str, text, setText, notify=textChanged)