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** this package.
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//! [0]
QPainterPath path;
path.addRect(20, 20, 60, 60);

path.moveTo(0, 0);
path.cubicTo(99, 0,  50, 50,  99, 99);
path.cubicTo(0, 99,  50, 50,  0, 0);

QPainter painter(this);
painter.fillRect(0, 0, 100, 100, Qt::white);
painter.setPen(QPen(QColor(79, 106, 25), 1, Qt::SolidLine,
                    Qt::FlatCap, Qt::MiterJoin));
painter.setBrush(QColor(122, 163, 39));

painter.drawPath(path);
//! [0]


//! [1]
QLinearGradient myGradient;
QPen myPen;

QPainterPath myPath;
myPath.cubicTo(c1, c2, endPoint);

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [1]


//! [2]
QLinearGradient myGradient;
QPen myPen;

QPointF center, startPoint;

QPainterPath myPath;
myPath.moveTo(center);
myPath.arcTo(boundingRect, startAngle,
             sweepLength);

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [2]


//! [3]
QLinearGradient myGradient;
QPen myPen;
QRectF myRectangle;

QPainterPath myPath;
myPath.addRect(myRectangle);

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [3]


//! [4]
QLinearGradient myGradient;
QPen myPen;
QPolygonF myPolygon;

QPainterPath myPath;
myPath.addPolygon(myPolygon);

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [4]


//! [5]
QLinearGradient myGradient;
QPen myPen;
QRectF boundingRectangle;

QPainterPath myPath;
myPath.addEllipse(boundingRectangle);

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [5]


//! [6]
QLinearGradient myGradient;
QPen myPen;
QFont myFont;
QPointF baseline(x, y);

QPainterPath myPath;
myPath.addText(baseline, myFont, tr("Qt"));

QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);
//! [6]