/* * Copyright (c) 2010 Remko Tronçon * Licensed under the GNU General Public License v3. * See Documentation/Licenses/GPLv3.txt for more information. */ #include "QtCachedImageScaler.h" #include <QImage> #include <boost/lexical_cast.hpp> namespace Swift { QtCachedImageScaler::QtCachedImageScaler() { } boost::filesystem::path QtCachedImageScaler::getScaledImage(const boost::filesystem::path& imagePath, int size) { boost::filesystem::path scaledImagePath(imagePath.string() + "." + boost::lexical_cast<std::string>(size)); if (!boost::filesystem::exists(scaledImagePath)) { QImage image(imagePath.string().c_str()); if (!image.isNull()) { if (image.width() > size || image.height() > size) { QImage scaledImage = image.scaled(size, size, Qt::KeepAspectRatio, Qt::SmoothTransformation); scaledImage.save(QString::fromUtf8(scaledImagePath.string().c_str()), "PNG"); } else { image.save(QString::fromUtf8(scaledImagePath.string().c_str()), "PNG"); } } else { return imagePath; } } return scaledImagePath; } }