File indexing completed on 2024-04-28 04:18:50

 // vim: set tabstop=4 shiftwidth=4 expandtab:
 /*
 Gwenview: an image viewer
 Copyright 2007 Aurélien Gâteau <agateau@kde.org>
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 */
 // Self
 #include "exiv2imageloader.h"
 
 // Qt
 #include <QByteArray>
 #include <QFile>
 #include <QString>
 
 // KF
 
 // Exiv2
 #include <exiv2/exiv2.hpp>
 
 // Local
 #include "gwenview_exiv2_debug.h"
 
 namespace Gwenview
 {
 struct Exiv2ImageLoaderPrivate {
     std::unique_ptr<Exiv2::Image> mImage;
     QString mErrorMessage;
 };
 
 struct Exiv2LogHandler {
     static void handleMessage(int level, const char *message)
     {
         switch (level) {
         case Exiv2::LogMsg::debug:
             qCDebug(GWENVIEW_EXIV2_LOG) << message;
             break;
         case Exiv2::LogMsg::info:
             qCInfo(GWENVIEW_EXIV2_LOG) << message;
             break;
         case Exiv2::LogMsg::warn:
         case Exiv2::LogMsg::error:
         case Exiv2::LogMsg::mute:
             qCWarning(GWENVIEW_EXIV2_LOG) << message;
             break;
         default:
             qCWarning(GWENVIEW_EXIV2_LOG) << "unhandled log level" << level << message;
             break;
         }
     }
 
     Exiv2LogHandler()
     {
         Exiv2::LogMsg::setHandler(&Exiv2LogHandler::handleMessage);
     }
 };
 
 Exiv2ImageLoader::Exiv2ImageLoader()
     : d(new Exiv2ImageLoaderPrivate)
 {
     // This is a threadsafe way to ensure that we only register it once
     static Exiv2LogHandler handler;
 }
 
 Exiv2ImageLoader::~Exiv2ImageLoader()
 {
     delete d;
 }
 
 bool Exiv2ImageLoader::load(const QString &filePath)
 {
     QByteArray filePathByteArray = QFile::encodeName(filePath);
     try {
         d->mImage.reset(Exiv2::ImageFactory::open(filePathByteArray.constData()).release());
         d->mImage->readMetadata();
     } catch (const Exiv2::Error &error) {
         d->mErrorMessage = QString::fromUtf8(error.what());
         return false;
     }
     return true;
 }
 
 bool Exiv2ImageLoader::load(const QByteArray &data)
 {
     try {
         d->mImage.reset(Exiv2::ImageFactory::open((unsigned char *)data.constData(), data.size()).release());
         d->mImage->readMetadata();
     } catch (const Exiv2::Error &error) {
         d->mErrorMessage = QString::fromUtf8(error.what());
         return false;
     }
     return true;
 }
 
 QString Exiv2ImageLoader::errorMessage() const
 {
     return d->mErrorMessage;
 }
 
 std::unique_ptr<Exiv2::Image> Exiv2ImageLoader::popImage()
 {
     return std::move(d->mImage);
 }
 
 } // namespace