//! [0]
item->scene().sceneRect().intersects(item->sceneBoundingRect());
//! [0]


//! [1]
class TileScene : public QGraphicsScene
{
public:
    ...

    void setTiles(const QPixmap &pixmap, int h, int v,
                  int tileHeight, int tileWidth);
    void setTile(int x, int y, int tilenum);

private:
    QRect tileRect(int x, int y) const;
    QRect tileRect(int tileNum) const;

    QVector<QVector<int> > tiles;
    QPixmap tilePixmap;
    int tileW, tileH;
    int hTiles, vTiles;
};
//! [1]


//! [2]
void TileScene::setTiles(const QPixmap &pixmap, int h, int v,
                         int tileHeight, int tileWidth)
{
    tilePixmap = pixmap;
    tileW = tileWidth;
    tileH = tileHeight;
    hTiles = h;
    vTiles = v;

    tiles.resize(v);
    for (int y = 0; y < v; ++y)
        tiles[y].resize(h);
}
//! [2]


//! [3]
void TileScene::setTile(int x, int y, int tilenum)
{
    tiles[y][x] = tilenum;
    update(tileRect(x, y));
}
//! [3]


//! [4]
QRect TileScene::tileRect(int x, int y) const
{
    return QRect(x * tileW, y * tileH, tileW, tileH);
}
//! [4]


//! [5]
QRect TileScene::tileRect(int tileNum) const
{
    int numHTiles = tilePixmap.width() / tileW;
    int numVTiles = tilePixmap.height() / tileH;
    return tileRect(tileNum % numHTiles, tileNum / numHTiles);
}
//! [5]


//! [6]
void drawBackground(QPainter *painter, const QRectF &exposed)
{
    for (int y = 0; y < vTiles; ++y) {
        for (int x = 0; x < hTiles; ++x) {
            QRect destRect = tileRect(x, y);
            if (exposed.intersects(destRect)) {
                painter->drawPixmap(destRect, tilePixmap,
                                    tileRect(tiles[y][x]));
            }
        }
    }
}
//! [6]


//! [7]
    // Before
    Q3CanvasEllipse ellipse(10, 10);

    // After
    QGraphicsEllipseItem ellipse(-5, -5, 10, 10);
//! [7]


//! [8]
static QPainterPath fromControlPoints(const Q3PointArray &pa)
{
    QPainterPath path;
    path.moveTo(pa[0]);
    for (int i = 1; i < pa.size(); i += 3)
        path.cubicTo(pa[i], pa[(i + 1) % pa.size()], pa[(i + 2) % pa.size()]);
    return path;
}
//! [8]


//! [9]
wildcardPath.replace("%1", "*");
QFileInfo fi(wildcardPath);

QList<QPixmap> frames;
foreach (QString entry, QDir(fi.path(), fi.fileName()).entryList())
    frames << QPixmap(fi.path() + "/" + entry);
//! [9]