diff -r 000000000000 -r 1918ee327afb examples/itemviews/pixelator/pixeldelegate.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/itemviews/pixelator/pixeldelegate.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** 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 + +#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]