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/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information ([email protected]) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** 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 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at [email protected]. ** $QT_END_LICENSE$ ** ****************************************************************************/ #include <QtGui> #include "pixeldelegate.h" PixelDelegate::PixelDelegate(QObject *parent) : QAbstractItemDelegate(parent) { pixelSize = 12; } void PixelDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { if (option.state & QStyle::State_Selected) painter->fillRect(option.rect, option.palette.highlight()); 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); if (radius == 0.0) return; painter->save(); painter->setRenderHint(QPainter::Antialiasing, true); painter->setPen(Qt::NoPen); if (option.state & QStyle::State_Selected) painter->setBrush(option.palette.highlightedText()); else painter->setBrush(QBrush(Qt::black)); 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(); } QSize PixelDelegate::sizeHint(const QStyleOptionViewItem & /* option */, const QModelIndex & /* index */) const { return QSize(pixelSize, pixelSize); } void PixelDelegate::setPixelSize(int size) { pixelSize = size; }
Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) | Trademarks | Qt 4.5.1 |