Ejemplo n.º 1
0
bool KExiv2::canWriteIptc(const QString& filePath)
{
    try
    {
        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open((const char*)
                                      (QFile::encodeName(filePath)));

        Exiv2::AccessMode mode = image->checkMode(Exiv2::mdIptc);
        return (mode == Exiv2::amWrite || mode == Exiv2::amReadWrite);
    }
    catch( Exiv2::Error& e )
    {
        std::string s(e.what());
        kDebug() << "Cannot check Iptc access mode using Exiv2 (Error #"
                      << e.code() << ": " << s.c_str() << ")";
    }

    return false;
}
Ejemplo n.º 2
0
bool MetaEngine::canWriteComment(const QString& filePath)
{
    try
    {
        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open((const char*)
                                      (QFile::encodeName(filePath).constData()));

        Exiv2::AccessMode mode = image->checkMode(Exiv2::mdComment);
        return (mode == Exiv2::amWrite || mode == Exiv2::amReadWrite);
    }
    catch( Exiv2::Error& e )
    {
        std::string s(e.what());
        qCCritical(DIGIKAM_METAENGINE_LOG) << "Cannot check Comment access mode using Exiv2 (Error #"
                                  << e.code() << ": " << s.c_str() << ")";
    }
    catch(...)
    {
        qCCritical(DIGIKAM_METAENGINE_LOG) << "Default exception from Exiv2";
    }

    return false;
}
Ejemplo n.º 3
0
bool KExiv2::Private::saveOperations(const QFileInfo& finfo, Exiv2::Image::AutoPtr image) const
{
    try
    {
        Exiv2::AccessMode mode;
        bool wroteComment = false, wroteEXIF = false, wroteIPTC = false, wroteXMP = false;

        // We need to load target file metadata to merge with new one. It's mandatory with TIFF format:
        // like all tiff file structure is based on Exif.
        image->readMetadata();

        // Image Comments ---------------------------------

        mode = image->checkMode(Exiv2::mdComment);

        if ((mode == Exiv2::amWrite) || (mode == Exiv2::amReadWrite))
        {
            image->setComment(imageComments());
            wroteComment = true;
        }

        // Exif metadata ----------------------------------

        mode = image->checkMode(Exiv2::mdExif);

        if ((mode == Exiv2::amWrite) || (mode == Exiv2::amReadWrite))
        {
            if (image->mimeType() == "image/tiff")
            {
                Exiv2::ExifData orgExif = image->exifData();
                Exiv2::ExifData newExif;
                QStringList     untouchedTags;

                // With tiff image we cannot overwrite whole Exif data as well, because
                // image data are stored in Exif container. We need to take a care about
                // to not lost image data.
                untouchedTags << "Exif.Image.ImageWidth";
                untouchedTags << "Exif.Image.ImageLength";
                untouchedTags << "Exif.Image.BitsPerSample";
                untouchedTags << "Exif.Image.Compression";
                untouchedTags << "Exif.Image.PhotometricInterpretation";
                untouchedTags << "Exif.Image.FillOrder";
                untouchedTags << "Exif.Image.SamplesPerPixel";
                untouchedTags << "Exif.Image.StripOffsets";
                untouchedTags << "Exif.Image.RowsPerStrip";
                untouchedTags << "Exif.Image.StripByteCounts";
                untouchedTags << "Exif.Image.XResolution";
                untouchedTags << "Exif.Image.YResolution";
                untouchedTags << "Exif.Image.PlanarConfiguration";
                untouchedTags << "Exif.Image.ResolutionUnit";

                for (Exiv2::ExifData::iterator it = orgExif.begin(); it != orgExif.end(); ++it)
                {
                    if (untouchedTags.contains(it->key().c_str()))
                    {
                        newExif[it->key().c_str()] = orgExif[it->key().c_str()];
                    }
                }

                Exiv2::ExifData readedExif = exifMetadata();

                for (Exiv2::ExifData::iterator it = readedExif.begin(); it != readedExif.end(); ++it)
                {
                    if (!untouchedTags.contains(it->key().c_str()))
                    {
                        newExif[it->key().c_str()] = readedExif[it->key().c_str()];
                    }
                }

                image->setExifData(newExif);
            }
            else
            {
                image->setExifData(exifMetadata());
            }

            wroteEXIF = true;
        }

        // Iptc metadata ----------------------------------

        mode = image->checkMode(Exiv2::mdIptc);

        if ((mode == Exiv2::amWrite) || (mode == Exiv2::amReadWrite))
        {
            image->setIptcData(iptcMetadata());
            wroteIPTC = true;
        }

        // Xmp metadata -----------------------------------

        mode = image->checkMode(Exiv2::mdXmp);

        if ((mode == Exiv2::amWrite) || (mode == Exiv2::amReadWrite))
        {
#ifdef _XMP_SUPPORT_
            image->setXmpData(xmpMetadata());
            wroteXMP = true;
#endif
        }

        if (!wroteComment && !wroteEXIF && !wroteIPTC && !wroteXMP)
        {
            kDebug() << "Writing metadata is not supported for file" << finfo.fileName();
            return false;
        }
        else if (!wroteEXIF || !wroteIPTC || !wroteXMP)
        {
            kDebug() << "Support for writing metadata is limited for file" << finfo.fileName()
                     << "EXIF" << wroteEXIF << "IPTC" << wroteIPTC << "XMP" << wroteXMP;
        }

        if (!updateFileTimeStamp)
        {
            // Don't touch access and modification timestamp of file.
            struct stat st;
            ::stat(QFile::encodeName(filePath), &st);

            struct utimbuf ut;
            ut.modtime = st.st_mtime;
            ut.actime  = st.st_atime;

            image->writeMetadata();

            ::utime(QFile::encodeName(filePath), &ut);
        }
        else
        {
            image->writeMetadata();
        }

        return true;
    }
    catch( Exiv2::Error& e )
    {
        printExiv2ExceptionError("Cannot save metadata using Exiv2 ", e);
    }

    return false;
}