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/*
* 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;
}
}
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Swift