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39 ****************************************************************************/
40
41 #include <QtGui>
42
main(int argv,char ** args)43 int main(int argv, char **args)
44 {
45 QApplication app(argv, args);
46
47 QStateMachine machine;
48
49 //![0]
50 QState *s1 = new QState();
51 QState *s11 = new QState(s1);
52 QState *s12 = new QState(s1);
53 QState *s13 = new QState(s1);
54 s1->setInitialState(s11);
55 machine.addState(s1);
56 //![0]
57
58 //![2]
59 s12->addTransition(quitButton, SIGNAL(clicked()), s12);
60 //![2]
61
62 //![1]
63 QFinalState *s2 = new QFinalState();
64 s1->addTransition(quitButton, SIGNAL(clicked()), s2);
65 machine.addState(s2);
66
67 QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit()));
68 //![1]
69
70 QButton *interruptButton = new QPushButton("Interrupt Button");
71 QWidget *mainWindow = new QWidget();
72
73 //![3]
74 QHistoryState *s1h = new QHistoryState(s1);
75
76 QState *s3 = new QState();
77 s3->assignProperty(label, "text", "In s3");
78 QMessageBox *mbox = new QMessageBox(mainWindow);
79 mbox->addButton(QMessageBox::Ok);
80 mbox->setText("Interrupted!");
81 mbox->setIcon(QMessageBox::Information);
82 QObject::connect(s3, SIGNAL(entered()), mbox, SLOT(exec()));
83 s3->addTransition(s1h);
84 machine.addState(s3);
85
86 s1->addTransition(interruptButton, SIGNAL(clicked()), s3);
87 //![3]
88
89 return app.exec();
90 }
91
92