/****************************************************************************

**

** 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 QtCore module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:BSD$

** You may use this file under the terms of the BSD license as follows:

**

** "Redistribution and use in source and binary forms, with or without

** modification, are permitted provided that the following conditions are

** met:

**   * Redistributions of source code must retain the above copyright

**     notice, this list of conditions and the following disclaimer.

**   * Redistributions in binary form must reproduce the above copyright

**     notice, this list of conditions and the following disclaimer in

**     the documentation and/or other materials provided with the

**     distribution.

**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor

**     the names of its contributors may be used to endorse or promote

**     products derived from this software without specific prior written

**     permission.

**

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****************************************************************************/

#include <QtGui>

class Pixmap : public QGraphicsObject

{

    Q_OBJECT

public:

    Pixmap(const QPixmap &pix) : QGraphicsObject(), p(pix)

    {

    }

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)

    {

        painter->drawPixmap(QPointF(), p);

    }

    QRectF boundingRect() const

    {

        return QRectF( QPointF(0, 0), p.size());

    }

private:

    QPixmap p;

};

int main(int argc, char *argv[])

{

    Q_INIT_RESOURCE(states);

    QApplication app(argc, argv);

    // Text edit and button

    QTextEdit *edit = new QTextEdit;

    edit->setText("asdf lkjha yuoiqwe asd iuaysd u iasyd uiy "

                  "asdf lkjha yuoiqwe asd iuaysd u iasyd uiy "

                  "asdf lkjha yuoiqwe asd iuaysd u iasyd uiy "

                  "asdf lkjha yuoiqwe asd iuaysd u iasyd uiy!");

    QPushButton *button = new QPushButton;

    QGraphicsProxyWidget *buttonProxy = new QGraphicsProxyWidget;

    buttonProxy->setWidget(button);

    QGraphicsProxyWidget *editProxy = new QGraphicsProxyWidget;

    editProxy->setWidget(edit);

    QGroupBox *box = new QGroupBox;

    box->setFlat(true);

    box->setTitle("Options");

    QVBoxLayout *layout2 = new QVBoxLayout;

    box->setLayout(layout2);

    layout2->addWidget(new QRadioButton("Herring"));

    layout2->addWidget(new QRadioButton("Blue Parrot"));

    layout2->addWidget(new QRadioButton("Petunias"));

    layout2->addStretch();

    QGraphicsProxyWidget *boxProxy = new QGraphicsProxyWidget;

    boxProxy->setWidget(box);

    // Parent widget

    QGraphicsWidget *widget = new QGraphicsWidget;

    QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(Qt::Vertical, widget);

    layout->addItem(editProxy);

    layout->addItem(buttonProxy);

    widget->setLayout(layout);

    Pixmap *p1 = new Pixmap(QPixmap(":/digikam.png"));

    Pixmap *p2 = new Pixmap(QPixmap(":/akregator.png"));

    Pixmap *p3 = new Pixmap(QPixmap(":/accessories-dictionary.png"));

    Pixmap *p4 = new Pixmap(QPixmap(":/k3b.png"));

    Pixmap *p5 = new Pixmap(QPixmap(":/help-browser.png"));

    Pixmap *p6 = new Pixmap(QPixmap(":/kchart.png"));

    QGraphicsScene scene(0, 0, 400, 300);

    scene.setBackgroundBrush(scene.palette().window());

    scene.addItem(widget);

    scene.addItem(boxProxy);

    scene.addItem(p1);

    scene.addItem(p2);

    scene.addItem(p3);

    scene.addItem(p4);

    scene.addItem(p5);

    scene.addItem(p6);

    QStateMachine machine;

    QState *state1 = new QState(&machine);

    QState *state2 = new QState(&machine);

    QState *state3 = new QState(&machine);

    machine.setInitialState(state1);

    // State 1

    state1->assignProperty(button, "text", "Switch to state 2");

    state1->assignProperty(widget, "geometry", QRectF(0, 0, 400, 150));

    state1->assignProperty(box, "geometry", QRect(-200, 150, 200, 150));

    state1->assignProperty(p1, "pos", QPointF(68, 185));

    state1->assignProperty(p2, "pos", QPointF(168, 185));

    state1->assignProperty(p3, "pos", QPointF(268, 185));

    state1->assignProperty(p4, "pos", QPointF(68-150, 48-150));

    state1->assignProperty(p5, "pos", QPointF(168, 48-150));

    state1->assignProperty(p6, "pos", QPointF(268+150, 48-150));

    state1->assignProperty(p1, "rotation", qreal(0));

    state1->assignProperty(p2, "rotation", qreal(0));

    state1->assignProperty(p3, "rotation", qreal(0));

    state1->assignProperty(p4, "rotation", qreal(-270));

    state1->assignProperty(p5, "rotation", qreal(-90));

    state1->assignProperty(p6, "rotation", qreal(270));

    state1->assignProperty(boxProxy, "opacity", qreal(0));

    state1->assignProperty(p1, "opacity", qreal(1));

    state1->assignProperty(p2, "opacity", qreal(1));

    state1->assignProperty(p3, "opacity", qreal(1));

    state1->assignProperty(p4, "opacity", qreal(0));

    state1->assignProperty(p5, "opacity", qreal(0));

    state1->assignProperty(p6, "opacity", qreal(0));

    // State 2

    state2->assignProperty(button, "text", "Switch to state 3");

    state2->assignProperty(widget, "geometry", QRectF(200, 150, 200, 150));

    state2->assignProperty(box, "geometry", QRect(9, 150, 190, 150));

    state2->assignProperty(p1, "pos", QPointF(68-150, 185+150));

    state2->assignProperty(p2, "pos", QPointF(168, 185+150));

    state2->assignProperty(p3, "pos", QPointF(268+150, 185+150));

    state2->assignProperty(p4, "pos", QPointF(64, 48));

    state2->assignProperty(p5, "pos", QPointF(168, 48));

    state2->assignProperty(p6, "pos", QPointF(268, 48));

    state2->assignProperty(p1, "rotation", qreal(-270));

    state2->assignProperty(p2, "rotation", qreal(90));

    state2->assignProperty(p3, "rotation", qreal(270));

    state2->assignProperty(p4, "rotation", qreal(0));

    state2->assignProperty(p5, "rotation", qreal(0));

    state2->assignProperty(p6, "rotation", qreal(0));

    state2->assignProperty(boxProxy, "opacity", qreal(1));

    state2->assignProperty(p1, "opacity", qreal(0));

    state2->assignProperty(p2, "opacity", qreal(0));

    state2->assignProperty(p3, "opacity", qreal(0));

    state2->assignProperty(p4, "opacity", qreal(1));

    state2->assignProperty(p5, "opacity", qreal(1));

    state2->assignProperty(p6, "opacity", qreal(1));

    // State 3

    state3->assignProperty(button, "text", "Switch to state 1");

    state3->assignProperty(p1, "pos", QPointF(0, 5));

    state3->assignProperty(p2, "pos", QPointF(0, 5 + 64 + 5));

    state3->assignProperty(p3, "pos", QPointF(5, 5 + (64 + 5) + 64));

    state3->assignProperty(p4, "pos", QPointF(5 + 64 + 5, 5));

    state3->assignProperty(p5, "pos", QPointF(5 + 64 + 5, 5 + 64 + 5));

    state3->assignProperty(p6, "pos", QPointF(5 + 64 + 5, 5 + (64 + 5) + 64));

    state3->assignProperty(widget, "geometry", QRectF(138, 5, 400 - 138, 200));

    state3->assignProperty(box, "geometry", QRect(5, 205, 400, 90));

    state3->assignProperty(p1, "opacity", qreal(1));

    state3->assignProperty(p2, "opacity", qreal(1));

    state3->assignProperty(p3, "opacity", qreal(1));

    state3->assignProperty(p4, "opacity", qreal(1));

    state3->assignProperty(p5, "opacity", qreal(1));

    state3->assignProperty(p6, "opacity", qreal(1));

    QAbstractTransition *t1 = state1->addTransition(button, SIGNAL(clicked()), state2);

    QSequentialAnimationGroup *animation1SubGroup = new QSequentialAnimationGroup;

    animation1SubGroup->addPause(250);

    animation1SubGroup->addAnimation(new QPropertyAnimation(box, "geometry"));

    t1->addAnimation(animation1SubGroup);

    t1->addAnimation(new QPropertyAnimation(widget, "geometry"));

    t1->addAnimation(new QPropertyAnimation(p1, "pos"));

    t1->addAnimation(new QPropertyAnimation(p2, "pos"));

    t1->addAnimation(new QPropertyAnimation(p3, "pos"));

    t1->addAnimation(new QPropertyAnimation(p4, "pos"));

    t1->addAnimation(new QPropertyAnimation(p5, "pos"));

    t1->addAnimation(new QPropertyAnimation(p6, "pos"));

    t1->addAnimation(new QPropertyAnimation(p1, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p2, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p3, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p4, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p5, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p6, "rotation"));

    t1->addAnimation(new QPropertyAnimation(p1, "opacity"));

    t1->addAnimation(new QPropertyAnimation(p2, "opacity"));

    t1->addAnimation(new QPropertyAnimation(p3, "opacity"));

    t1->addAnimation(new QPropertyAnimation(p4, "opacity"));

    t1->addAnimation(new QPropertyAnimation(p5, "opacity"));

    t1->addAnimation(new QPropertyAnimation(p6, "opacity"));

    QAbstractTransition *t2 = state2->addTransition(button, SIGNAL(clicked()), state3);

    t2->addAnimation(new QPropertyAnimation(box, "geometry"));

    t2->addAnimation(new QPropertyAnimation(widget, "geometry"));

    t2->addAnimation(new QPropertyAnimation(p1, "pos"));

    t2->addAnimation(new QPropertyAnimation(p2, "pos"));

    t2->addAnimation(new QPropertyAnimation(p3, "pos"));

    t2->addAnimation(new QPropertyAnimation(p4, "pos"));

    t2->addAnimation(new QPropertyAnimation(p5, "pos"));

    t2->addAnimation(new QPropertyAnimation(p6, "pos"));

    t2->addAnimation(new QPropertyAnimation(p1, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p2, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p3, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p4, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p5, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p6, "rotation"));

    t2->addAnimation(new QPropertyAnimation(p1, "opacity"));

    t2->addAnimation(new QPropertyAnimation(p2, "opacity"));

    t2->addAnimation(new QPropertyAnimation(p3, "opacity"));

    t2->addAnimation(new QPropertyAnimation(p4, "opacity"));

    t2->addAnimation(new QPropertyAnimation(p5, "opacity"));

    t2->addAnimation(new QPropertyAnimation(p6, "opacity"));

    QAbstractTransition *t3 = state3->addTransition(button, SIGNAL(clicked()), state1);

    t3->addAnimation(new QPropertyAnimation(box, "geometry"));

    t3->addAnimation(new QPropertyAnimation(widget, "geometry"));

    t3->addAnimation(new QPropertyAnimation(p1, "pos"));

    t3->addAnimation(new QPropertyAnimation(p2, "pos"));

    t3->addAnimation(new QPropertyAnimation(p3, "pos"));

    t3->addAnimation(new QPropertyAnimation(p4, "pos"));

    t3->addAnimation(new QPropertyAnimation(p5, "pos"));

    t3->addAnimation(new QPropertyAnimation(p6, "pos"));

    t3->addAnimation(new QPropertyAnimation(p1, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p2, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p3, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p4, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p5, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p6, "rotation"));

    t3->addAnimation(new QPropertyAnimation(p1, "opacity"));

    t3->addAnimation(new QPropertyAnimation(p2, "opacity"));

    t3->addAnimation(new QPropertyAnimation(p3, "opacity"));

    t3->addAnimation(new QPropertyAnimation(p4, "opacity"));

    t3->addAnimation(new QPropertyAnimation(p5, "opacity"));

    t3->addAnimation(new QPropertyAnimation(p6, "opacity"));

    machine.start();

    QGraphicsView view(&scene);

    view.show();

    return app.exec();

}

#include "main.moc"