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+############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the documentation of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## BSD License Usage
+## Alternatively, you may use this file under the terms of the BSD license
+## as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+############################################################################
+
+from PySide2.QtWidgets import QApplication, QWidget, QStackedLayout, QComboBox
+
+class Widget(QWidget)
+ def __init__(self, parent=None):
+ QWidget.__init__(self, parent)
+//! [0]
+ self.firstPageWidget = QWidget()
+ self.secondPageWidget = QWidget()
+ self.thirdPageWidget = QWidget()
+
+ self.stackedLayout = QStackedLayout()
+ self.stackedLayout.addWidget(self.firstPageWidget)
+ self.stackedLayout.addWidget(self.secondPageWidget)
+ self.stackedLayout.addWidget(self.thirdPageWidget)
+
+//! [0] //! [1]
+ self.pageComboBox = QComboBox()
+ self.pageComboBox.addItem(tr("Page 1"))
+ self.pageComboBox.addItem(tr("Page 2"))
+ self.pageComboBox.addItem(tr("Page 3"))
+ self.pageComboBox.activated.connect(self.stackedLayout.setCurrentIndex)
+//! [1]
+
+//! [2]
+ self.mainLayout = QVBoxLayout()
+//! [2]
+ self.mainLayout.addWidget(self.pageComboBox)
+//! [3]
+ self.mainLayout.addLayout(self.stackedLayout)
+ self.setLayout(self.mainLayout)
+//! [3]
+
+if __name__ == "__main__":
+ app = QApplication(sys.argv)
+ widget = Widget()
+ widget.show()
+ sys.exit(app.exec_())