bool KExiv2::getImagePreview(QImage& preview) const
{
try
{
// In first we trying to get from Iptc preview tag.
if (preview.loadFromData(getIptcTagData("Iptc.Application2.Preview")) )
return true;
// TODO : Added here Makernotes preview extraction when Exiv2 will be fixed for that.
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot get image preview using Exiv2 ", e);
}
catch(...)
{
kError() << "Default exception from Exiv2";
}
return false;
}
bool MetaEngine::getImagePreview(QImage& preview) const
{
try
{
// In first we trying to get from Iptc preview tag.
if (preview.loadFromData(getIptcTagData("Iptc.Application2.Preview")) )
return true;
// TODO : Added here Makernotes preview extraction when Exiv2 will be fixed for that.
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError(QString::fromLatin1("Cannot get image preview using Exiv2 "), e);
}
catch(...)
{
qCCritical(DIGIKAM_METAENGINE_LOG) << "Default exception from Exiv2";
}
return false;
}
int DMetadata::getItemRating(const DMetadataSettingsContainer& settings) const
{
if (getFilePath().isEmpty())
{
return -1;
}
long rating = -1;
bool xmpSupported = hasXmp();
bool iptcSupported = hasIptc();
bool exivSupported = hasExif();
for (NamespaceEntry entry : settings.getReadMapping(QString::fromUtf8(DM_RATING_CONTAINER)))
{
if (entry.isDisabled)
continue;
const std::string myStr = entry.namespaceName.toStdString();
const char* nameSpace = myStr.data();
QString value;
switch(entry.subspace)
{
case NamespaceEntry::XMP:
if (xmpSupported)
value = getXmpTagString(nameSpace, false);
break;
case NamespaceEntry::IPTC:
if (iptcSupported)
value = QString::fromUtf8(getIptcTagData(nameSpace));
break;
case NamespaceEntry::EXIF:
if (exivSupported)
getExifTagLong(nameSpace, rating);
break;
default:
break;
}
if (!value.isEmpty())
{
bool ok = false;
rating = value.toLong(&ok);
if (!ok)
{
return -1;
}
}
int index = entry.convertRatio.indexOf(rating);
// Exact value was not found,but rating is in range,
// so we try to approximate it
if ((index == -1) &&
(rating > entry.convertRatio.first()) &&
(rating < entry.convertRatio.last()))
{
for (int i = 0 ; i < entry.convertRatio.size() ; ++i)
{
if (rating > entry.convertRatio.at(i))
{
index = i;
}
}
}
if (index != -1)
{
return index;
}
}
return -1;
}
