1fdfc2abfe
Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore>
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#include <stdio.h>
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//! [0]
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class PingEvent : public QEvent
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{
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public:
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PingEvent() : QEvent(QEvent::Type(QEvent::User+2))
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{}
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};
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class PongEvent : public QEvent
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{
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public:
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PongEvent() : QEvent(QEvent::Type(QEvent::User+3))
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{}
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};
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//! [0]
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//! [1]
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class Pinger : public QState
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{
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public:
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Pinger(QState *parent)
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: QState(parent) {}
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protected:
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virtual void onEntry(QEvent *)
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{
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machine()->postEvent(new PingEvent());
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fprintf(stdout, "ping?\n");
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}
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};
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//! [1]
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//! [3]
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class PongTransition : public QAbstractTransition
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{
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public:
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PongTransition() {}
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protected:
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virtual bool eventTest(QEvent *e) {
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return (e->type() == QEvent::User+3);
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}
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virtual void onTransition(QEvent *)
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{
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machine()->postDelayedEvent(new PingEvent(), 500);
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fprintf(stdout, "ping?\n");
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}
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};
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//! [3]
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//! [2]
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class PingTransition : public QAbstractTransition
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{
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public:
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PingTransition() {}
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protected:
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virtual bool eventTest(QEvent *e) {
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return (e->type() == QEvent::User+2);
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}
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virtual void onTransition(QEvent *)
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{
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machine()->postDelayedEvent(new PongEvent(), 500);
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fprintf(stdout, "pong!\n");
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}
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};
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//! [2]
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//! [4]
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int main(int argc, char **argv)
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{
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QCoreApplication app(argc, argv);
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QStateMachine machine;
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QState *group = new QState(QState::ParallelStates);
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group->setObjectName("group");
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//! [4]
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//! [5]
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Pinger *pinger = new Pinger(group);
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pinger->setObjectName("pinger");
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pinger->addTransition(new PongTransition());
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QState *ponger = new QState(group);
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ponger->setObjectName("ponger");
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ponger->addTransition(new PingTransition());
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//! [5]
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//! [6]
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machine.addState(group);
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machine.setInitialState(group);
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machine.start();
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return app.exec();
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}
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//! [6]
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