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

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the documentation of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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

//! [0]

QGraphicsScene scene;

QGraphicsRectItem *rect = scene.addRect(QRectF(0, 0, 100, 100));

QGraphicsItem *item = scene.itemAt(50, 50);

// item == rect

//! [0]

//! [1]

QGraphicsScene scene;

myPopulateScene(&scene);

QGraphicsView view(&scene);

view.show();

//! [1]

//! [2]

class View : public QGraphicsView

{

Q_OBJECT

    ...

public slots:

    void zoomIn() { scale(1.2, 1.2); }

    void zoomOut() { scale(1 / 1.2, 1 / 1.2); }

    void rotateLeft() { rotate(-10); }

    void rotateRight() { rotate(10); }

    ...

};

//! [2]

//! [3]

QGraphicsScene scene;

scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green));

QPrinter printer;

if (QPrintDialog(&printer).exec() == QDialog::Accepted) {

    QPainter painter(&printer);

    painter.setRenderHint(QPainter::Antialiasing);

    scene.render(&painter);

}

//! [3]

//! [4]

QGraphicsScene scene;

scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green));

QPixmap pixmap;

QPainter painter(&pixmap);

painter.setRenderHint(QPainter::Antialiasing);

scene.render(&painter);

painter.end();

pixmap.save("scene.png");

//! [4]

//! [5]

void CustomItem::mousePressEvent(QGraphicsSceneMouseEvent *event)

{

    QMimeData *data = new QMimeData;

    data->setColor(Qt::green);

    QDrag *drag = new QDrag(event->widget());

    drag->setMimeData(data);

    drag->start();

}

//! [5]

//! [6]

QGraphicsView view(&scene);

view.setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));

//! [6]