/****************************************************************************
**
** Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/

#include <QtGui>

#include "pixeldelegate.h"

void PixelDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
                          const QModelIndex &index) const
{
    painter->setRenderHint(QPainter::Antialiasing);
    painter->setBrush(QBrush(Qt::white));
    painter->setPen(Qt::NoPen);
    painter->drawRect(option.rect);
    painter->setBrush(QBrush(Qt::black));

    int size = qMin(option.rect.width(), option.rect.height());
    int brightness = index.model()->data(index, Qt::DisplayRole).toInt();
    double radius = (size/2.0) - (brightness/255.0 * size/2.0);

    painter->save();
    painter->translate(option.rect.x() + option.rect.width()/2 - radius,
                       option.rect.y() + option.rect.height()/2 - radius);
    painter->drawEllipse(QRectF(0.0, 0.0, 2*radius, 2*radius));
    painter->restore();
}

QSize PixelDelegate::sizeHint(const QStyleOptionViewItem & /* option */,
                              const QModelIndex & /* index */) const
{
    return QSize(PixelSize, PixelSize);
}
