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

**

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

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

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

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

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** 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

** Foundation and appearing in the file LICENSE.LGPL included in the

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

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

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

#include <QtGui>

#include "pixeldelegate.h"

//! [0]

PixelDelegate::PixelDelegate(QObject *parent)

    : QAbstractItemDelegate(parent)

{

    pixelSize = 12;

}

//! [0]

//! [1]

void PixelDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,

                          const QModelIndex &index) const

{

//! [2]

    if (option.state & QStyle::State_Selected)

        painter->fillRect(option.rect, option.palette.highlight());

//! [1]

//! [3]

    int size = qMin(option.rect.width(), option.rect.height());

//! [3] //! [4]

    int brightness = index.model()->data(index, Qt::DisplayRole).toInt();

    double radius = (size/2.0) - (brightness/255.0 * size/2.0);

    if (radius == 0.0)

        return;

//! [4]

//! [5]

    painter->save();

//! [5] //! [6]

    painter->setRenderHint(QPainter::Antialiasing, true);

//! [6] //! [7]

    painter->setPen(Qt::NoPen);

//! [7] //! [8]

    if (option.state & QStyle::State_Selected)

//! [8] //! [9]

        painter->setBrush(option.palette.highlightedText());

    else

//! [2]

        painter->setBrush(QBrush(Qt::black));

//! [9]

//! [10]

    painter->drawEllipse(QRectF(option.rect.x() + option.rect.width()/2 - radius,

                                option.rect.y() + option.rect.height()/2 - radius,

                                2*radius, 2*radius));

    painter->restore();

}

//! [10]

//! [11]

QSize PixelDelegate::sizeHint(const QStyleOptionViewItem & /* option */,

                              const QModelIndex & /* index */) const

{

    return QSize(pixelSize, pixelSize);

}

//! [11]

//! [12]

void PixelDelegate::setPixelSize(int size)

{

    pixelSize = size;

}

//! [12]