// Always creates a new metadata entry.
// Passing invalidTypeId causes the type to be guessed.
// Guessing types is accurate for IPTC, but not for EXIF.
// Returns 0 on success
EXIVSIMPLE_API int AddMeta(HIMAGE img, const char *key, const char *val, DllTypeId type)
{
assert(img && key && val);
if (img==0 || key==0 || val==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
std::string data(val);
{
size_t dataLen = data.length();
// if data starts and ends with quotes, remove them
if (dataLen > 1 && *(data.begin()) == '\"' && *(data.rbegin()) == '\"') {
data = data.substr(1, dataLen-2);
}
}
try {
Exiv2::IptcKey iptcKey(key);
rc = 1;
if (type == invalidTypeId)
type = (DllTypeId)Exiv2::IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
rc = iptcData.add(iptcKey, value.get());
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// Failed with iptc, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
// No way to get value type for exif... string is the most common
if (type == invalidTypeId)
type = asciiString;
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
exifData.add(exifKey, value.get());
rc = 0;
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
// This is weird because iptc and exif have not been "unified". Once
// they are unified, this DLL should not have to know
// about either... just generic images, keys, values, etc.
//
// buffsize should be the total size of *buff (including space for null)
// Note that if there is more than one entry (for some IPTC datasets) this
// returns the first one found. Currently no way to get the others.
// Returns 0 on success
EXIVSIMPLE_API int ReadMeta(HIMAGE img, const char *key, char *buff, int buffsize)
{
assert(img && key && buff);
if (img==0 || key==0 || buff==0 || buffsize==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
try {
// First try iptc
Exiv2::IptcKey iptcKey(key);
rc = 1;
Exiv2::IptcData::const_iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
strncpy(buff, iter->value().toString().c_str(), buffsize);
buff[buffsize-1] = 0;
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// No iptc value, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
Exiv2::ExifData::const_iterator iter = exifData.findKey(exifKey);
if (iter != exifData.end()) {
strncpy(buff, iter->value().toString().c_str(), buffsize);
buff[buffsize-1] = 0;
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
// If multiple entires exist, this only remove the first one
// found. Call multiple times to remove many.
// Returns 0 on success
EXIVSIMPLE_API int RemoveMeta(HIMAGE img, const char *key)
{
assert(img && key);
if (img==0 || key==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
try {
Exiv2::IptcKey iptcKey(key);
rc = 1;
Exiv2::IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iptcData.erase(iter);
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// No iptc value, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
Exiv2::ExifData::iterator iter = exifData.findKey(exifKey);
if (iter != exifData.end()) {
exifData.erase(iter);
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
bool ExtendedPhoto::findExifKey(const std::string& key, String& value) const
{
const Exiv2::ExifData& exifData = pImage->exifData();
try
{
Exiv2::ExifKey exifKey(key);
Exiv2::ExifData::const_iterator citer = exifData.findKey(exifKey);
if (citer != exifData.end())
{
value = citer->value().toString();
value.trim();
return true;
}
return false;
}
catch (...)
{
return false;
}
}
// Overwrites existing value if found, otherwise creates a new one.
// Passing invalidTypeId causes the type to be guessed.
// Guessing types is accurate for IPTC, but not for EXIF.
// Returns 0 on success
EXIVSIMPLE_API int ModifyMeta(HIMAGE img, const char *key, const char *val, DllTypeId type)
{
assert(img && key && val);
if (img==0 || key==0 || val==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
std::string data(val);
// if data starts and ends with quotes, remove them
if (data.at(0) == '\"' && data.at(data.size()-1) == '\"') {
data = data.substr(1, data.size()-2);
}
try {
Exiv2::IptcKey iptcKey(key);
rc = 1;
if (type == invalidTypeId)
type = (DllTypeId)Exiv2::IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
Exiv2::IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iter->setValue(value.get());
rc = 0;
}
else {
rc = iptcData.add(iptcKey, value.get());
}
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// Failed with iptc, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
// No way to get value type for exif... string is the most common
if (type == invalidTypeId)
type = asciiString;
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
Exiv2::ExifData::iterator iter = exifData.findKey(exifKey);
if (iter != exifData.end()) {
iter->setValue(value.get());
rc = 0;
}
else {
exifData.add(exifKey, value.get());
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
bool KisExifIO::saveTo(KisMetaData::Store* store, QIODevice* ioDevice, HeaderType headerType) const
{
ioDevice->open(QIODevice::WriteOnly);
Exiv2::ExifData exifData;
if (headerType == KisMetaData::IOBackend::JpegHeader) {
QByteArray header(6, 0);
header[0] = 0x45;
header[1] = 0x78;
header[2] = 0x69;
header[3] = 0x66;
header[4] = 0x00;
header[5] = 0x00;
ioDevice->write(header);
}
for (QHash<QString, KisMetaData::Entry>::const_iterator it = store->begin();
it != store->end(); ++it) {
try {
const KisMetaData::Entry& entry = *it;
dbgFile << "Trying to save: " << entry.name() << " of " << entry.schema()->prefix() << ":" << entry.schema()->uri();
QString exivKey;
if (entry.schema()->uri() == KisMetaData::Schema::TIFFSchemaUri) {
exivKey = "Exif.Image." + entry.name();
} else if (entry.schema()->uri() == KisMetaData::Schema::EXIFSchemaUri) { // Distinguish between exif and gps
if (entry.name().left(3) == "GPS") {
exivKey = "Exif.GPS." + entry.name();
} else {
exivKey = "Exif.Photo." + entry.name();
}
} else if (entry.schema()->uri() == KisMetaData::Schema::DublinCoreSchemaUri) {
if (entry.name() == "description") {
exivKey = "Exif.Image.ImageDescription";
} else if (entry.name() == "creator") {
exivKey = "Exif.Image.Artist";
} else if (entry.name() == "rights") {
exivKey = "Exif.Image.Copyright";
}
} else if (entry.schema()->uri() == KisMetaData::Schema::XMPSchemaUri) {
if (entry.name() == "ModifyDate") {
exivKey = "Exif.Image.DateTime";
} else if (entry.name() == "CreatorTool") {
exivKey = "Exif.Image.Software";
}
} else if (entry.schema()->uri() == KisMetaData::Schema::MakerNoteSchemaUri) {
if (entry.name() == "RawData") {
exivKey = "Exif.Photo.MakerNote";
}
}
dbgFile << "Saving " << entry.name() << " to " << exivKey;
if (exivKey.isEmpty()) {
dbgFile << entry.qualifiedName() << " is unsavable to EXIF";
} else {
Exiv2::ExifKey exifKey(qPrintable(exivKey));
Exiv2::Value* v = 0;
if (exivKey == "Exif.Photo.ExifVersion" || exivKey == "Exif.Photo.FlashpixVersion") {
v = kmdValueToExifVersion(entry.value());
} else if (exivKey == "Exif.Photo.FileSource") {
char s[] = { 0x03 };
v = new Exiv2::DataValue((const Exiv2::byte*)s, 1);
} else if (exivKey == "Exif.Photo.SceneType") {
char s[] = { 0x01 };
v = new Exiv2::DataValue((const Exiv2::byte*)s, 1);
} else if (exivKey == "Exif.Photo.ComponentsConfiguration") {
v = kmdIntOrderedArrayToExifArray(entry.value());
} else if (exivKey == "Exif.Image.Artist") { // load as dc:creator
KisMetaData::Value creator = entry.value().asArray()[0];
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 20
v = kmdValueToExivValue(creator, Exiv2::ExifTags::tagType(exifKey.tag(), exifKey.ifdId()));
#else
v = kmdValueToExivValue(creator, exifKey.defaultTypeId());
#endif
} else if (exivKey == "Exif.Photo.OECF") {
v = kmdOECFStructureToExifOECF(entry.value());
} else if (exivKey == "Exif.Photo.DeviceSettingDescription") {
v = deviceSettingDescriptionKMDToExif(entry.value());
} else if (exivKey == "Exif.Photo.CFAPattern") {
v = cfaPatternKMDToExif(entry.value());
} else if (exivKey == "Exif.Photo.Flash") {
v = flashKMDToExif(entry.value());
} else if (exivKey == "Exif.Photo.UserComment") {
Q_ASSERT(entry.value().type() == KisMetaData::Value::LangArray);
QMap<QString, KisMetaData::Value> langArr = entry.value().asLangArray();
if (langArr.contains("x-default")) {
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 20
v = kmdValueToExivValue(langArr.value("x-default"), Exiv2::ExifTags::tagType(exifKey.tag(), exifKey.ifdId()));
#else
v = kmdValueToExivValue(langArr.value("x-default"), exifKey.defaultTypeId());
#endif
} else if (langArr.size() > 0) {
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 20
v = kmdValueToExivValue(langArr.begin().value(), Exiv2::ExifTags::tagType(exifKey.tag(), exifKey.ifdId()));
#else
v = kmdValueToExivValue(langArr.begin().value(), exifKey.defaultTypeId());
#endif
}
} else {
dbgFile << exifKey.tag();
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 20
v = kmdValueToExivValue(entry.value(), Exiv2::ExifTags::tagType(exifKey.tag(), exifKey.ifdId()));
#else
v = kmdValueToExivValue(entry.value(), exifKey.defaultTypeId());
#endif
}
if (v && v->typeId() != Exiv2::invalidTypeId) {
dbgFile << "Saving key" << exivKey << " of KMD value" << entry.value();
exifData.add(exifKey, v);
} else {
dbgFile << "No exif value was created for" << entry.qualifiedName() << " as" << exivKey;// << " of KMD value" << entry.value();
}
}
} catch (Exiv2::AnyError& e) {
dbgFile << "exiv error " << e.what();
}
}
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 17
Exiv2::DataBuf rawData = exifData.copy();
ioDevice->write((const char*) rawData.pData_, rawData.size_);
#else
Exiv2::Blob rawData;
Exiv2::ExifParser::encode(rawData, Exiv2::littleEndian, exifData);
ioDevice->write((const char*) &*rawData.begin(), rawData.size());
#endif
ioDevice->close();
return true;
}
