/******************************************************************************** Copyright (C) 2010 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.**** $QT_BEGIN_LICENSE:BSD$** You may use this file under the terms of the BSD license as follows:**** "Redistribution and use in source and binary forms, with or without** modification, are permitted provided that the following conditions are** met:** * Redistributions of source code must retain the above copyright** notice, this list of conditions and the following disclaimer.** * Redistributions in binary form must reproduce the above copyright** notice, this list of conditions and the following disclaimer in** the documentation and/or other materials provided with the** distribution.** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor** the names of its contributors may be used to endorse or promote** products derived from this software without specific prior written** permission.**** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."** $QT_END_LICENSE$******************************************************************************/#include <QImage>#include <QList>#include <QThread>#include <QDebug>#include <QApplication>#include <qtconcurrentmap.h>#ifndef QT_NO_CONCURRENTQImage scale(const QImage &image){ qDebug() << "Scaling image in thread" << QThread::currentThread(); return image.scaled(QSize(100, 100), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);}int main(int argc, char *argv[]){ QApplication app(argc, argv); const int imageCount = 20; // Create a list containing imageCount images. QList<QImage> images; for (int i = 0; i < imageCount; ++i) images.append(QImage(1600, 1200, QImage::Format_ARGB32_Premultiplied)); // Use QtConcurrentBlocking::mapped to apply the scale function to all the // images in the list. QList<QImage> thumbnails = QtConcurrent::blockingMapped(images, scale); return 0;}#elseint main(){ qDebug() << "Qt Concurrent is not yet supported on this platform";}#endif