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

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

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** packaging of this file.  Please review the following information to

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

//! [0]

QLinearGradient gradient(0, 0, 100, 100);

gradient.setColorAt(0, Qt::red);

gradient.setColorAt(0.5, Qt::green);

gradient.setColorAt(1, Qt::blue);

painter.setBrush(gradient);

painter.drawRect(0, 0, 100, 100);

//! [0]

//! [1]

QRadialGradient gradient(50, 50, 50, 30, 30);

gradient.setColorAt(0.2, Qt::white);

gradient.setColorAt(0.8, Qt::green);

gradient.setColorAt(1, Qt::black);

painter.setBrush(gradient);

painter.drawEllipse(0, 0, 100, 100);

//! [1]

//! [2]

QConicalGradient gradient(60, 40, 0);

gradient.setColorAt(0, Qt::black);

gradient.setColorAt(0.4, Qt::green);

gradient.setColorAt(0.6, Qt::white);

gradient.setColorAt(1, Qt::black);

painter.setBrush(gradient);

painter.drawEllipse(0, 0, 100, 100);

//! [2]

//! [3]

// Specfiy semi-transparent red

painter.setBrush(QColor(255, 0, 0, 127));

painter.drawRect(0, 0, width()/2, height());

// Specify semi-transparend blue

painter.setBrush(QColor(0, 0, 255, 127));

painter.drawRect(0, 0, width(), height()/2);

//! [3]

//! [4]

// One line without anti-aliasing

painter.drawLine(0, 0, width()/2, height());

// One line with anti-aliasing

painter.setRenderHint(QPainter::Antialiasing);

painter.drawLine(width()/2, 0, width()/2, height());

//! [4]

//! [5]

QPainterPath path;

path.addRect(20, 20, 60, 60);

path.addBezier(0, 0,  99, 0,  50, 50,  99, 99);

path.addBezier(99, 99,  0, 99,  50, 50,  0, 0);

painter.drawPath(path);

//! [5]

//! [6]

QPixmap buffer(size());

QPainter painter(&buffer);

// Paint code here

painter.end();

bitBlt(this, 0, 0, &buffer);

//! [6]

//! [7]

QPainter painter(this);

// Paint code here

painter.end();

//! [7]

//! [8]

unbufferedWidget->setAttribute(Qt::WA_PaintOnScreen);

//! [8]

//! [9]

QLinearGradient gradient(0, 0, 100, 100);

gradient.setColorAt(0, Qt::blue);

gradient.setColorAt(1, Qt::red);

painter.setPen(QPen(gradient, 0));

for (int y=fontSize; y<100; y+=fontSize)

    drawText(0, y, text);

//! [9]

//! [10]

QImage image(100, 100, 32);

QPainter painter(&image);

// painter commands.

painter.end();

//! [10]