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+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2010 velociraptor Genjix <aphidia@hotmail.com>
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## 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 *
+from PySide2.QtCore import *
+
+class MainWindow(QMainWindow):
+ def __init__(self):
+ super(MainWindow, self).__init__()
+ button = QPushButton(self)
+ button.setGeometry(QRect(100, 100, 100, 100))
+
+ machine = QStateMachine(self)
+ s1 = QState()
+ s1.assignProperty(button, 'text', 'Outside')
+ s2 = QState()
+ s2.assignProperty(button, 'text', 'Inside')
+
+ enterTransition = QEventTransition(button, QEvent.Enter)
+ enterTransition.setTargetState(s2)
+ s1.addTransition(enterTransition)
+
+ leaveTransition = QEventTransition(button, QEvent.Leave)
+ leaveTransition.setTargetState(s1)
+ s2.addTransition(leaveTransition)
+
+ s3 = QState()
+ s3.assignProperty(button, 'text', 'Pressing...')
+
+ pressTransition = QEventTransition(button, QEvent.MouseButtonPress)
+ pressTransition.setTargetState(s3)
+ s2.addTransition(pressTransition)
+
+ releaseTransition = QEventTransition(button, QEvent.MouseButtonRelease)
+ releaseTransition.setTargetState(s2)
+ s3.addTransition(releaseTransition)
+
+ machine.addState(s1)
+ machine.addState(s2)
+ machine.addState(s3)
+
+ machine.setInitialState(s1)
+ machine.start()
+
+ self.setCentralWidget(button)
+ self.show()
+
+if __name__ == '__main__':
+ import sys
+
+ app = QApplication(sys.argv)
+ mainWin = MainWindow()
+ sys.exit(app.exec_())