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#include <QtGui>
int main(int argv, char **args)
{
QApplication app(argv, args);
QStateMachine machine;
//![0]
QState *s1 = new QState();
QState *s11 = new QState(s1);
QState *s12 = new QState(s1);
QState *s13 = new QState(s1);
s1->setInitialState(s11);
machine.addState(s1);
//![0]
//![2]
s12>addTransition(quitButton, SIGNAL(clicked()), s12);
//![2]
//![1]
QFinalState *s2 = new QFinalState();
s1->addTransition(quitButton, SIGNAL(clicked()), s2);
machine.addState(s2);
QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit()));
//![1]
QButton *interruptButton = new QPushButton("Interrupt Button");
//![3]
QHistoryState *s1h = s1->addHistoryState();
QState *s3 = new QState();
s3->assignProperty(label, "text", "In s3");
QMessageBox mbox;
mbox.addButton(QMessageBox::Ok);
mbox.setText("Interrupted!");
mbox.setIcon(QMessageBox::Information);
QObject::connect(s3, SIGNAL(entered()), &mbox, SLOT(exec()));
s3->addTransition(s1h);
machine.addState(s3);
s1->addTransition(interruptButton, SIGNAL(clicked()), s3);
//![3]
return app.exec();
}
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