1 files changed, 70 insertions, 0 deletions
diff --git a/examples/statemachine/ping_pong/ping_pong.py b/examples/statemachine/ping_pong/ping_pong.py
new file mode 100644
index 000000000..d5c18eb28
--- /dev/null
+++ b/examples/statemachine/ping_pong/ping_pong.py
@@ -0,0 +1,70 @@
+# Copyright (C) 2010 velociraptor Genjix <aphidia@hotmail.com>
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+import sys
+
+from PySide6.QtCore import QCoreApplication, QEvent
+from PySide6.QtStateMachine import QAbstractTransition, QState, QStateMachine
+
+
+class PingEvent(QEvent):
+    def __init__(self):
+        super().__init__(QEvent.Type(QEvent.User + 2))
+
+
+class PongEvent(QEvent):
+    def __init__(self):
+        super().__init__(QEvent.Type(QEvent.User + 3))
+
+
+class Pinger(QState):
+    def __init__(self, parent):
+        super().__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__':
+    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())