void CrwMap::extractBasic(const CiffComponent& ciffComponent,
const CrwMapInfo* crwMapInfo,
Image& image,
ByteOrder byteOrder)
{
// create a key and value pair
ExifKey key(crwMapInfo->tag_, ExifTags::ifdItem(crwMapInfo->ifdId_));
Value::AutoPtr value;
if (ciffComponent.typeId() != directory) {
value = Value::create(ciffComponent.typeId());
uint32_t size = 0;
if (crwMapInfo->size_ != 0) {
// size in the mapping table overrides all
size = crwMapInfo->size_;
}
else if (ciffComponent.typeId() == asciiString) {
// determine size from the data, by looking for the first 0
uint32_t i = 0;
for (; i < ciffComponent.size()
&& ciffComponent.pData()[i] != '\0'; ++i) {
// empty
}
size = ++i;
}
else {
// by default, use the size from the directory entry
size = ciffComponent.size();
}
value->read(ciffComponent.pData(), size, byteOrder);
}
// Add metadatum to exif data
image.exifData().add(key, value.get());
} // CrwMap::extractBasic
void processAdd(const std::string& line, int num, IptcData &iptcData)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
std::string::size_type keyEnd = line.find_first_of(" \t", keyStart+1);
std::string::size_type dataStart = line.find_first_not_of(" \t", keyEnd+1);
if (keyStart == std::string::npos ||
keyEnd == std::string::npos ||
dataStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'a\' command at line " << num;
throw Error(1, os.str());
}
std::string key(line.substr(keyStart, keyEnd-keyStart));
IptcKey iptcKey(key);
std::string data(line.substr(dataStart));
// 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);
}
TypeId type = IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Value::AutoPtr value = Value::create(type);
value->read(data);
int rc = iptcData.add(iptcKey, value.get());
if (rc) {
throw Error(1, "Iptc dataset already exists and is not repeatable");
}
}
int IptcData::readData(uint16_t dataSet, uint16_t record,
const byte* data, uint32_t sizeData)
{
Value::AutoPtr value;
TypeId type = IptcDataSets::dataSetType(dataSet, record);
value = Value::create(type);
value->read(data, sizeData, bigEndian);
IptcKey key(dataSet, record);
add(key, value.get());
return 0;
}
int IptcData::readData(uint16_t dataSet, uint16_t record,
const byte* data, uint32_t sizeData)
{
Value::AutoPtr value;
TypeId type = IptcDataSets::dataSetType(dataSet, record);
value = Value::create(type);
int rc = value->read(data, sizeData, bigEndian);
if (0 == rc) {
IptcKey key(dataSet, record);
add(key, value.get());
}
else if (1 == rc) {
// If the first attempt failed, try with a string value
value = Value::create(string);
int rc = value->read(data, sizeData, bigEndian);
if (0 == rc) {
IptcKey key(dataSet, record);
add(key, value.get());
}
}
return rc;
}
void CiffComponent::print(std::ostream& os,
ByteOrder byteOrder,
const std::string& prefix) const
{
os << prefix
<< "tag = 0x" << std::setw(4) << std::setfill('0')
<< std::hex << std::right << tagId()
<< ", dir = 0x" << std::setw(4) << std::setfill('0')
<< std::hex << std::right << dir()
<< ", type = " << TypeInfo::typeName(typeId())
<< ", size = " << std::dec << size_
<< ", offset = " << offset_ << "\n";
Value::AutoPtr value;
if (typeId() != directory) {
value = Value::create(typeId());
value->read(pData_, size_, byteOrder);
if (value->size() < 100) {
os << prefix << *value << "\n";
}
}
} // CiffComponent::print