1 files changed, 97 insertions, 0 deletions
diff --git a/examples/widgets/state-machine/pingpong.py b/examples/widgets/state-machine/pingpong.py
new file mode 100755
index 000000000..f0233ffc0
--- /dev/null
+++ b/examples/widgets/state-machine/pingpong.py
@@ -0,0 +1,97 @@
+#!/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 PingEvent(QEvent):
+    def __init__(self):
+        super(PingEvent, self).__init__(QEvent.Type(QEvent.User+2))
+class PongEvent(QEvent):
+    def __init__(self):
+        super(PongEvent, self).__init__(QEvent.Type(QEvent.User+3))
+
+class Pinger(QState):
+    def __init__(self, parent):
+        super(Pinger, self).__init__(parent)
+    def onEntry(self, e):
+        self.p = PingEvent()
+        self.machine().postEvent(self.p)
+        print('ping?')
+
+class PongTransition(QAbstractTransition):
+    def eventTest(self, e):
+        return e.type() == QEvent.User+3
+    def onTransition(self, e):
+        self.p = PingEvent()
+        machine.postDelayedEvent(self.p, 500)
+        print('ping?')
+class PingTransition(QAbstractTransition):
+    def eventTest(self, e):
+        return e.type() == QEvent.User+2
+    def onTransition(self, e):
+        self.p = PongEvent()
+        machine.postDelayedEvent(self.p, 500)
+        print('pong!')
+
+if __name__ == '__main__':
+    import sys
+    app = QCoreApplication(sys.argv)
+
+    machine = QStateMachine()
+    group = QState(QState.ParallelStates)
+    group.setObjectName('group')
+
+    pinger = Pinger(group)
+    pinger.setObjectName('pinger')
+    pinger.addTransition(PongTransition())
+
+    ponger = QState(group)
+    ponger.setObjectName('ponger')
+    ponger.addTransition(PingTransition())
+
+    machine.addState(group)
+    machine.setInitialState(group)
+    machine.start()
+
+    sys.exit(app.exec_())