diff -r 56cd8111b7f7 -r 41300fa6a67c tests/benchmarks/uimodels/GraphicsViewBenchmark/widgets/iconitem.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/benchmarks/uimodels/GraphicsViewBenchmark/widgets/iconitem.cpp Tue Feb 02 00:43:10 2010 +0200 @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 http://qt.nokia.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include + +#if (QT_VERSION >= 0x040600) +#include +#endif + +#include "iconitem.h" + +IconItem::IconItem(const QString &filename, QGraphicsItem *parent) + : GvbWidget(parent) + , m_filename(filename) + , m_rotation(0.0) +#if (QT_VERSION >= 0x040600) + , m_opacityEffect(0) +#endif + , m_smoothTransformation(false) +{ + setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); + setContentsMargins(0,0,0,0); + setPreferredSize(58,58); +} + +IconItem::~IconItem() +{ +} + +void IconItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) +{ + Q_UNUSED(option); + Q_UNUSED(widget); + + reload(); + + const QPointF c = boundingRect().center(); + painter->translate(c.x(), c.y()); + painter->rotate(m_rotation); + painter->translate(-c.x(), -c.y()); + + if (m_smoothTransformation) + painter->setRenderHints(QPainter::SmoothPixmapTransform); + + painter->drawPixmap(0,0, m_pixmap); +} + +QSizeF IconItem::sizeHint(Qt::SizeHint which, + const QSizeF &constraint) const +{ + switch (which) + { + case Qt::MinimumSize: + case Qt::PreferredSize: + case Qt::MaximumSize: + return m_pixmap.size(); + + default: + return GvbWidget::sizeHint(which, constraint); + } +} + +void IconItem::reload() +{ + const QSize iconSize = size().toSize(); + if (iconSize.width() == 0 || iconSize.height() == 0) + return; + + const QString key = m_filename+QString::number(iconSize.width())+QString::number(iconSize.height()); + if (QPixmapCache::find(key, m_pixmap)) + return; + + if (m_filename.endsWith(".svg", Qt::CaseInsensitive)) + { + m_pixmap = QPixmap(iconSize); + m_pixmap.fill(Qt::transparent); + QSvgRenderer doc(m_filename); + QPainter painter(&m_pixmap); + painter.setViewport(0, 0, iconSize.width(), iconSize.height()); + doc.render(&painter); + } + else + { + m_pixmap = QPixmap(m_filename).scaled(iconSize); + } + + QPixmapCache::insert(key, m_pixmap); + updateGeometry(); +} + +QString IconItem::fileName() const +{ + return m_filename; +} + +void IconItem::setFileName(const QString &filename) +{ + if( m_filename != filename) { + m_filename = filename; + reload(); + } +} + +#if (QT_VERSION >= 0x040600) +void IconItem::setOpacityEffectEnabled(const bool enable) +{ + if (!m_opacityEffect) + { + QRadialGradient gradient(0.5, 0.5, 1.0); + gradient.setCoordinateMode(QGradient::ObjectBoundingMode); + gradient.setColorAt(0.0, QColor(0,0,0, 255)); + gradient.setColorAt(0.46, QColor(0,0,0, 255)); + gradient.setColorAt(0.62, QColor(0,0,0, 0)); + + m_opacityEffect = new QGraphicsOpacityEffect; + m_opacityEffect->setOpacityMask(gradient); + m_opacityEffect->setOpacity(1.0); + this->setGraphicsEffect(m_opacityEffect); + } + m_opacityEffect->setEnabled(enable); +} + +bool IconItem::isOpacityEffectEnabled() const +{ + if (m_opacityEffect) + return m_opacityEffect->isEnabled(); + + return false; +} +#endif