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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#ifdef QT_STATEMACHINE_SOLUTION
#include <qstatemachine.h>
#include <qstate.h>
#include <qeventtransition.h>
#endif
//! [0]
class Window : public QWidget
{
public:
Window(QWidget *parent = 0)
: QWidget(parent)
{
QPushButton *button = new QPushButton(this);
button->setGeometry(QRect(100, 100, 100, 100));
//! [0]
//! [1]
QStateMachine *machine = new QStateMachine(this);
QState *s1 = new QState();
s1->assignProperty(button, "text", "Outside");
QState *s2 = new QState();
s2->assignProperty(button, "text", "Inside");
//! [1]
//! [2]
QEventTransition *enterTransition = new QEventTransition(button, QEvent::Enter);
enterTransition->setTargetState(s2);
s1->addTransition(enterTransition);
//! [2]
//! [3]
QEventTransition *leaveTransition = new QEventTransition(button, QEvent::Leave);
leaveTransition->setTargetState(s1);
s2->addTransition(leaveTransition);
//! [3]
//! [4]
QState *s3 = new QState();
s3->assignProperty(button, "text", "Pressing...");
QEventTransition *pressTransition = new QEventTransition(button, QEvent::MouseButtonPress);
pressTransition->setTargetState(s3);
s2->addTransition(pressTransition);
QEventTransition *releaseTransition = new QEventTransition(button, QEvent::MouseButtonRelease);
releaseTransition->setTargetState(s2);
s3->addTransition(releaseTransition);
//! [4]
//! [5]
machine->addState(s1);
machine->addState(s2);
machine->addState(s3);
machine->setInitialState(s1);
machine->start();
}
};
//! [5]
//! [6]
int main(int argc, char **argv)
{
QApplication app(argc, argv);
Window window;
window.resize(300, 300);
window.show();
return app.exec();
}
//! [6]
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