/******************************************************************************** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** Contact: Nokia Corporation (qt-info@nokia.com)**** This file is part of the documentation of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** No Commercial Usage** This file contains pre-release code and may not be distributed.** You may use this file in accordance with the terms and conditions** contained in the Technology Preview License Agreement accompanying** this package.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Nokia gives you certain additional** rights. These rights are described in the Nokia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** If you have questions regarding the use of this file, please contact** Nokia at qt-info@nokia.com.****************** $QT_END_LICENSE$******************************************************************************/#include <QtGui>int main(int argv, char **args){ QApplication app(argv, args); QLabel *label = new QLabel;//![0] QStateMachine machine; QState *s1 = new QState(); QState *s2 = new QState(); QState *s3 = new QState();//![0]//![4] s1->assignProperty(label, "text", "In state s1"); s2->assignProperty(label, "text", "In state s2"); s3->assignProperty(label, "text", "In state s3");//![4]//![5] QObject::connect(s3, SIGNAL(entered()), button, SLOT(showMaximized())); QObject::connect(s3, SIGNAL(exited()), button, SLOT(showMinimized()));//![5]//![1] s1->addTransition(button, SIGNAL(clicked()), s2); s2->addTransition(button, SIGNAL(clicked()), s3); s3->addTransition(button, SIGNAL(clicked()), s1);//![1]//![2] machine.addState(s1); machine.addState(s2); machine.addState(s3); machine.setInitialState(s1);//![2]//![3] machine.start();//![3] label->show(); return app.exec();}