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-rw-r--r--examples/statemachine/pingpong/main.cpp104
1 files changed, 104 insertions, 0 deletions
diff --git a/examples/statemachine/pingpong/main.cpp b/examples/statemachine/pingpong/main.cpp
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+++ b/examples/statemachine/pingpong/main.cpp
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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtCore>
+#include <QtStateMachine>
+
+#include <iostream>
+
+//! [0]
+class PingEvent : public QEvent
+{
+public:
+ PingEvent() : QEvent(QEvent::Type(QEvent::User+2))
+ {}
+};
+
+class PongEvent : public QEvent
+{
+public:
+ PongEvent() : QEvent(QEvent::Type(QEvent::User+3))
+ {}
+};
+//! [0]
+
+//! [1]
+class Pinger : public QState
+{
+public:
+ Pinger(QState *parent)
+ : QState(parent) {}
+
+protected:
+ void onEntry(QEvent *) override
+ {
+ machine()->postEvent(new PingEvent());
+ std::cout << "ping?" << std::endl;
+ }
+};
+//! [1]
+
+//! [3]
+class PongTransition : public QAbstractTransition
+{
+public:
+ PongTransition() {}
+
+protected:
+ bool eventTest(QEvent *e) override {
+ return (e->type() == QEvent::User+3);
+ }
+ void onTransition(QEvent *) override
+ {
+ machine()->postDelayedEvent(new PingEvent(), 500);
+ std::cout << "ping?" << std::endl;
+ }
+};
+//! [3]
+
+//! [2]
+class PingTransition : public QAbstractTransition
+{
+public:
+ PingTransition() {}
+
+protected:
+ bool eventTest(QEvent *e) override {
+ return (e->type() == QEvent::User+2);
+ }
+ void onTransition(QEvent *) override
+ {
+ machine()->postDelayedEvent(new PongEvent(), 500);
+ std::cout << "pong!" << std::endl;
+ }
+};
+//! [2]
+
+//! [4]
+int main(int argc, char **argv)
+{
+ QCoreApplication app(argc, argv);
+
+ QStateMachine machine;
+ QState *group = new QState(QState::ParallelStates);
+ group->setObjectName("group");
+//! [4]
+
+//! [5]
+ Pinger *pinger = new Pinger(group);
+ pinger->setObjectName("pinger");
+ pinger->addTransition(new PongTransition());
+
+ QState *ponger = new QState(group);
+ ponger->setObjectName("ponger");
+ ponger->addTransition(new PingTransition());
+//! [5]
+
+//! [6]
+ machine.addState(group);
+ machine.setInitialState(group);
+ machine.start();
+
+ return app.exec();
+}
+//! [6]