bool getXmpLangAltValue(Exiv2::XmpData &xmpData, const char *propertyName,
const QString &langAlt, QString &resultValue) {
bool anyFound = false;
Exiv2::XmpKey key(propertyName);
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if ((it != xmpData.end()) && (it->typeId() == Exiv2::langAlt)) {
const Exiv2::LangAltValue &value = static_cast<const Exiv2::LangAltValue &>(it->value());
QString anyValue;
Exiv2::LangAltValue::ValueType::const_iterator it2 = value.value_.begin();
Exiv2::LangAltValue::ValueType::const_iterator end = value.value_.end();
for (; it2 != end; ++it2) {
QString lang = QString::fromUtf8(it2->first.c_str());
if (langAlt == lang) {
QString text = QString::fromUtf8(it2->second.c_str()).trimmed();
if (!text.isEmpty()) {
anyFound = true;
resultValue = text.trimmed();
break;
}
}
if (anyValue.isEmpty()) {
QString text = QString::fromUtf8(it2->second.c_str());
anyValue = text.trimmed();
}
}
if (!anyFound && !anyValue.isEmpty()) {
anyFound = true;
resultValue = anyValue;
}
}
return anyFound;
}
bool getXmpDescription(Exiv2::XmpData &xmpData, const QString &langAlt, QString &description) {
bool anyFound = false;
try {
anyFound = getXmpLangAltValue(xmpData, XMP_DESCRIPTION, langAlt, description);
if (!anyFound || description.isEmpty()) {
Exiv2::XmpKey psKey(XMP_PS_HEADLINE);
Exiv2::XmpData::iterator xmpIt = xmpData.findKey(psKey);
if (xmpIt != xmpData.end()) {
const Exiv2::XmpTextValue &value = static_cast<const Exiv2::XmpTextValue &>(xmpIt->value());
QString headline = QString::fromUtf8(value.value_.c_str()).trimmed();
if (!headline.isEmpty()) {
anyFound = true;
description = headline;
}
}
}
}
catch (Exiv2::Error &e) {
LOG_WARNING << "Exiv2 error:" << e.what();
anyFound = false;
}
catch (...) {
LOG_WARNING << "Exception";
anyFound = false;
#ifdef QT_DEBUG
throw;
#endif
}
return anyFound;
}