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/*
Aeskulap ImagePool - DICOM abstraction library
Copyright (C) 2005 Alexander Pipelka
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Alexander Pipelka
*/
#include <gtkmm.h>
#include "dcmtk/dcmdata/dcfilefo.h"
#include "dcmtk/dcmdata/dcdeftag.h"
#include "dcmtk/dcmdata/dcdicdir.h"
#include "dcmtk/dcmdata/dcdirrec.h"
#include "imagepool.h"
#include "dicomdirloader.h"
namespace ImagePool {
std::string DicomdirLoader::ImageModalities =
"CR|CT|MR|NM|US|OT|BI|CD|DD|DG|ES|LS|PT|RG|ST|TG|XA|RF|RTIMAGE|HC|DX|MG|"\
"IO|PX|GM|SM|XC|OP|IVUS|DF|CF|DF|VF|AS|CS|LP|FA|CP|DM|FS|MA|MS";
bool DicomdirLoader::load(const std::string &studyinstanceuid, const Glib::ustring &dicomdir) {
DcmDicomDir dir(dicomdir.c_str());
OFCondition ret;
if (busy() ) {
return false;
}
if ( (ret=dir.error()) != EC_Normal ) {
std::cout << "DicomdirLoader::load Error: " << ret.text() << std::endl;
return false;
}
// Open DICOMDIR and look for StudyInstanceUID
// Add all IMAGE record types to m_FileList and fill cache
// FileLoader::Start
DcmDirectoryRecord *studyRec = find_study(studyinstanceuid, dir);
if ( !studyRec ) {
std::cout << "DicomdirLoader::load Error: cannot find study" << std::endl;
return false;
}
m_filelist = new std::list< Glib::ustring >;
m_cache.clear();
if ( !scan_study(studyinstanceuid, studyRec, dicomdir) ) {
std::cout << "DicomdirLoader::load: no visible images" << std::endl;
return false;
}
FileLoader::start();
return true;
}
DcmDirectoryRecord* DicomdirLoader::find_study(const std::string &studyinstanceuid, class DcmDicomDir &dir) {
DcmDirectoryRecord *patRec;
DcmDirectoryRecord *studyRec;
OFCondition ret;
DcmDirectoryRecord &root = dir.getRootRecord();
for ( patRec = root.nextSub(NULL); patRec != NULL; patRec = root.nextSub(patRec) ) {
if ( patRec->getRecordType() == ERT_Patient ) {
for ( studyRec = patRec->nextSub(NULL); studyRec; studyRec = patRec->nextSub(studyRec) ) {
if ( studyRec->getRecordType()==ERT_Study ) {
OFString uid;
if ( studyRec->findAndGetOFString(DCM_StudyInstanceUID, uid)==EC_Normal ) {
if ( studyinstanceuid == uid.c_str() )
return studyRec;
}
}
}
}
}
return NULL;
}
// Loads all dicom file in m_FileList
// Initializes m_Cache
// returns true if viewable files found, otherwise false
bool DicomdirLoader::scan_study(const std::string &studyinstanceuid, class DcmDirectoryRecord *studyRec, const Glib::ustring &dicomdir) {
DcmDirectoryRecord *seriesRec;
DcmDirectoryRecord *sopRec;
std::string path;
std::string file;
assert(studyRec->getRecordType()==ERT_Study);
path = Glib::path_get_dirname(dicomdir);
seriesRec = studyRec->nextSub(NULL);
while ( seriesRec ) {
OFString modality;
if ( seriesRec->findAndGetOFString(DCM_Modality, modality) == EC_Normal ) {
OFString seriesinstanceuid;
if ( seriesRec->findAndGetOFString(DCM_SeriesInstanceUID, seriesinstanceuid) != EC_Normal ) {
seriesRec = studyRec->nextSub(seriesRec);
continue;
}
if ( ImageModalities.find(modality.c_str()) != std::string::npos ) {
// Load Series...
OFString fileID;
int vm;
int i;
DcmElement *el;
for (sopRec = seriesRec->nextSub(NULL); sopRec; sopRec = seriesRec->nextSub(sopRec) ) {
switch ( sopRec->getRecordType() ) {
case ERT_Image:
case ERT_StoredPrint:
if ( sopRec->findAndGetElement(DCM_ReferencedFileID, el, true)!=EC_Normal ) {
sopRec = seriesRec->nextSub(sopRec);
continue;
}
vm = el->getVM();
file = "";
for ( i=0; i<vm; i++ ) {
el->getOFString(fileID, i);
file = file + "/" + fileID.c_str();
}
if ( file.size() > 0 ) {
std::cout << "Loading DICOMDIR file [" << path.c_str() << file.c_str() << "]" << std::endl;
m_filelist->push_back(path + file);
std::string SeriesUID = seriesinstanceuid.c_str();
m_cache[studyinstanceuid].m_instancecount++;
m_cache[studyinstanceuid].m_seriesuid.insert(SeriesUID);
m_cache[studyinstanceuid].m_seriescount = m_cache[studyinstanceuid].m_seriesuid.size();
}
break;
default:
break;
}
}
}
}
seriesRec = studyRec->nextSub(seriesRec);
}
return true;
}
} // namespace ImagePool
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