void
mitk::DICOMGDCMTagScanner
::AddTag(const DICOMTag& tag)
{
m_ScannedTags.insert(tag);
m_GDCMScanner.AddTag( gdcm::Tag(tag.GetGroup(), tag.GetElement()) ); // also a set, duplicate calls to AddTag don't hurt
}
mitk::DICOMDatasetFinding
mitk::DICOMGDCMImageFrameInfo
::GetTagValueAsString(const DICOMTag& tag) const
{
const auto mappedValue = m_TagForValue.find( gdcm::Tag(tag.GetGroup(), tag.GetElement()) );
DICOMDatasetFinding result;
if (mappedValue != m_TagForValue.cend())
{
result.isValid = true;
if (mappedValue->second != nullptr)
{
std::string s(mappedValue->second);
try
{
result.value = s.erase(s.find_last_not_of(" \n\r\t")+1);
}
catch(...)
{
result.value = s;
}
}
else
{
result.value = "";
}
}
else
{
const DICOMTag tagImagePositionPatient = DICOMTag(0x0020,0x0032); // Image Position (Patient)
const DICOMTag tagImageOrientation = DICOMTag(0x0020, 0x0037); // Image Orientation
if (tag == tagImagePositionPatient)
{
result.isValid = true;
result.value = std::string("0\\0\\0");
}
else if (tag == tagImageOrientation)
{
result.isValid = true;
result.value = std::string("1\\0\\0\\0\\1\\0");
}
else
{
result.isValid = false;
result.value = "";
}
}
return result;
}
std::string
mitk::DICOMGDCMTagScanner
::GetTagValue(DICOMImageFrameInfo* frame, const DICOMTag& tag) const
{
assert(frame);
for(auto frameIter = m_ScanResult.begin();
frameIter != m_ScanResult.end();
++frameIter)
{
if ( (*frameIter)->GetFrameInfo().IsNotNull() &&
(*((*frameIter)->GetFrameInfo()) == *frame )
)
{
return (*frameIter)->GetTagValueAsString(tag);
}
}
if ( m_ScannedTags.find(tag) != m_ScannedTags.end() )
{
if ( std::find( m_InputFilenames.begin(), m_InputFilenames.end(), frame->Filename ) != m_InputFilenames.end() )
{
// precondition of gdcm::Scanner::GetValue() fulfilled
return m_GDCMScanner.GetValue( frame->Filename.c_str(), gdcm::Tag( tag.GetGroup(), tag.GetElement() ) );
}
else
{
// callers are required to tell us about the filenames they are interested in
// this is a helpful reminder for them to inform us
std::stringstream errorstring;
errorstring << "Invalid call to DICOMGDCMTagScanner::GetTagValue( "
<< "'" << frame->Filename << "', frame " << frame->FrameNo
<< " ). Filename was never mentioned before!";
MITK_ERROR << errorstring.str();
throw std::invalid_argument(errorstring.str());
}
}
else
{
// callers are required to tell us about the tags they are interested in
// this is a helpful reminder for them to inform us
std::stringstream errorstring;
errorstring << "Invalid call to DICOMGDCMTagScanner::GetTagValue( ";
tag.Print(errorstring);
errorstring << " ). Tag was never mentioned before!";
MITK_ERROR << errorstring.str();
throw std::invalid_argument(errorstring.str());
}
}