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Diffstat (limited to 'examples/widgets/state-machine/eventtrans.py')
-rwxr-xr-x | examples/widgets/state-machine/eventtrans.py | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/examples/widgets/state-machine/eventtrans.py b/examples/widgets/state-machine/eventtrans.py new file mode 100755 index 000000000..68e21a81f --- /dev/null +++ b/examples/widgets/state-machine/eventtrans.py @@ -0,0 +1,93 @@ +#!/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_()) |