File indexing completed on 2025-01-19 03:56:00

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2006-09-15
  * Description : Exiv2 library interface.
  *               Comments manipulation methods.
  *
  * SPDX-FileCopyrightText: 2006-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  * SPDX-FileCopyrightText: 2006-2013 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 // Local includes
 
 #include "metaengine_p.h"
 #include "digikam_debug.h"
 #include "digikam_config.h"
 
 #if defined(Q_CC_CLANG)
 #   pragma clang diagnostic push
 #   pragma clang diagnostic ignored "-Wdeprecated-declarations"
 #endif
 
 namespace Digikam
 {
 
 bool MetaEngine::canWriteComment(const QString& filePath)
 {
     QMutexLocker lock(&s_metaEngineMutex);
 
     try
     {
 
 #if defined Q_OS_WIN && defined EXV_UNICODE_PATH
 
         Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open((const wchar_t*)filePath.utf16());
 
 #elif defined Q_OS_WIN
 
         Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(QFile::encodeName(filePath).constData());
 
 #else
 
         Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(filePath.toUtf8().constData());
 
 #endif
 
         Exiv2::AccessMode mode      = image->checkMode(Exiv2::mdComment);
 
         return ((mode == Exiv2::amWrite) || (mode == Exiv2::amReadWrite));
     }
     catch (Exiv2::AnyError& e)
     {
         qCCritical(DIGIKAM_METAENGINE_LOG) << "Cannot check Comment access mode with Exiv2 (Error #"
                                            << (int)e.code() << ": " << QString::fromStdString(e.what()) << ")";
     }
     catch (...)
     {
         qCCritical(DIGIKAM_METAENGINE_LOG) << "Default exception from Exiv2";
     }
 
     return false;
 }
 
 bool MetaEngine::hasComments() const
 {
     return !d->itemComments().empty();
 }
 
 bool MetaEngine::clearComments() const
 {
     return setComments(QByteArray());
 }
 
 QByteArray MetaEngine::getComments() const
 {
     return QByteArray(d->itemComments().data(), (int)d->itemComments().size());
 }
 
 QString MetaEngine::getCommentsDecoded() const
 {
     return d->detectEncodingAndDecode(d->itemComments());
 }
 
 bool MetaEngine::setComments(const QByteArray& data) const
 {
     d->itemComments() = std::string(data.data(), data.size());
 
     return true;
 }
 
 QString MetaEngine::detectLanguageAlt(const QString& value, QString& lang)
 {
     // Ex. from an Xmp tag Xmp.tiff.copyright: "lang="x-default"
 
     if (value.size() > 6 && value.startsWith(QLatin1String("lang=\"")))
     {
         int pos = value.indexOf(QLatin1String("\""), 6);
 
         if (pos != -1)
         {
             lang = value.mid(6, pos-6);
             return (value.mid(pos+2));
         }
     }
 
     lang.clear();
 
     return value;
 }
 
 } // namespace Digikam
 
 #if defined(Q_CC_CLANG)
 #   pragma clang diagnostic pop
 #endif