X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmSQItem.cxx;h=b6c5dd0d31c9a9045d7abbc1ea2b0a5fbe2ff82d;hb=add6c88b334e9cf4ddb0ae1849f1380f9844f99c;hp=f0ed2598584ba1139e11346720bf1ddc0d59d13d;hpb=28e546efc3dc694c93a006529aecad5c4821b432;p=gdcm.git diff --git a/src/gdcmSQItem.cxx b/src/gdcmSQItem.cxx index f0ed2598..b6c5dd0d 100644 --- a/src/gdcmSQItem.cxx +++ b/src/gdcmSQItem.cxx @@ -1,78 +1,317 @@ -// gdcmSQItem.cxx -//----------------------------------------------------------------------------- -// +/*========================================================================= + + Program: gdcm + Module: $RCSfile: gdcmSQItem.cxx,v $ + Language: C++ + Date: $Date: 2007/10/08 15:20:17 $ + Version: $Revision: 1.88 $ + + Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de + l'Image). All rights reserved. See Doc/License.txt or + http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details. + + This software is distributed WITHOUT ANY WARRANTY; without even + the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR + PURPOSE. See the above copyright notices for more information. + +=========================================================================*/ + #include "gdcmSQItem.h" +#include "gdcmSeqEntry.h" #include "gdcmGlobal.h" +#include "gdcmDictSet.h" #include "gdcmUtil.h" +#include "gdcmDebug.h" +#include +namespace GDCM_NAME_SPACE +{ //----------------------------------------------------------------------------- // Constructor / Destructor /** - * \ingroup gdcmSQItem - * \brief Constructor from a given gdcmSQItem + * \brief Constructor from a given SQItem */ -gdcmSQItem::gdcmSQItem( ) - : gdcmDocEntrySet() { +SQItem::SQItem(int depthLevel ) + : DocEntrySet( ) +{ + SQDepthLevel = depthLevel; + SQItemNumber = 0; } /** * \brief Canonical destructor. */ -gdcmSQItem::~gdcmSQItem() +SQItem::~SQItem() { - for(ListDocEntry::iterator cc = docEntries.begin(); - cc != docEntries.end(); - ++cc) - { - delete *cc; - } + ClearEntry(); } - //----------------------------------------------------------------------------- -// Print +// Public /* - * \ingroup gdcmSQItem - * \brief canonical Printer + * \brief canonical Writer + * @param fp file pointer to an already open file. + * @param filetype type of the file (ACR, ImplicitVR, ExplicitVR, ...) */ - void gdcmSQItem::Print(std::ostream & os) { +void SQItem::WriteContent(std::ofstream *fp, FileType filetype, + bool , bool ) +{ + int j; + uint16_t item[4] = { 0xfffe, 0xe000, 0xffff, 0xffff }; + uint16_t itemt[4]= { 0xfffe, 0xe00d, 0x0000, 0x0000 }; - for (ListDocEntry::iterator i = docEntries.begin(); - i != docEntries.end(); - ++i) + //we force the writting of an 'Item' Start Element + // because we want to write the Item as a 'No Length' item + for(j=0;j<4;++j) { - //(*i)->SetPrintLevel(printLevel); //self->GetPrintLevel() ? - (*i)->Print(os); + binary_write( *fp, item[j]); // fffe e000 ffff ffff + } + + for (ListDocEntry::iterator it = DocEntries.begin(); + it != DocEntries.end(); + ++it) + { + // we skip delimitors (start and end one) because + // we force them as 'no length' + if ( (*it)->GetGroup() == 0xfffe ) + { + continue; + } + + // Fix in order to make some MR PHILIPS images e-film readable + // see gdcmData/gdcm-MR-PHILIPS-16-Multi-Seq.dcm: + // we just *always* ignore spurious fffe|0000 tag ! + if ( (*it)->GetGroup() == 0xfffe && (*it)->GetElement() == 0x0000 ) + { + break; // FIXME : break or continue; ?!? + // --> makes no difference since the only bugged file we have + // contains 'impossible tag' fffe|0000 in last position ! + } + // false : we are not in MetaElements + // true : we are inside a Sequence + (*it)->WriteContent(fp, filetype, false, true); + } + + //we force the writting of an 'Item Delimitation' item + // because we wrote the Item as a 'no Length' item + for(j=0;j<4;++j) + { + binary_write( *fp, itemt[j]); // fffe e000 0000 0000 } } -//----------------------------------------------------------------------------- -// Public +/** + * \brief Compute the full length of the SQItem (not only value length) + * depending on the VR. + */ +uint32_t SQItem::ComputeFullLength() +{ + uint32_t l = 8; // Item Starter length + for (ListDocEntry::iterator it = DocEntries.begin(); + it != DocEntries.end(); + ++it) + { + // we skip delimitors (start and end one) because + // we force them as 'no length' + if ( (*it)->GetGroup() == 0xfffe ) + { + continue; + } + l += (*it)->ComputeFullLength(); + } + l += 8; // 'Item Delimitation' item + return l; +} + +/** + * \brief Inserts *in the right place* any Entry (Dicom Element) + * into the Sequence Item + * @param entry Entry to add + * @return always true + */ +bool SQItem::AddEntry(DocEntry *entry) +{ + if (DocEntries.empty() ) + { + DocEntries.push_back(entry); + entry->Register(); + return true; + } + + ListDocEntry::iterator insertSpot; + ListDocEntry::iterator it = DocEntries.end(); + do + { + it--; -bool gdcmSQItem::AddEntry(gdcmDocEntry *entry) { - docEntries.push_back(entry); - //TODO : check if it worked + if ( (*it)->IsItemDelimitor() ) + { + continue; + } + if ( (*it)->GetGroup() < entry->GetGroup() ) + break; + else + if ( (*it)->GetGroup() == entry->GetGroup() && + (*it)->GetElement() < entry->GetElement() ) + break; + } while (it != DocEntries.begin() ); + + ++it; + insertSpot = it; + DocEntries.insert(insertSpot, entry); + entry->Register(); return true; } - + +/** + * \brief Clear the std::list from given entry AND delete the entry. + * @param entryToRemove Entry to remove AND delete. + * @return true if the entry was found and removed; false otherwise + */ +bool SQItem::RemoveEntry( DocEntry *entryToRemove ) +{ + for(ListDocEntry::iterator it = DocEntries.begin(); + it != DocEntries.end(); + ++it) + { + if ( *it == entryToRemove ) + { + DocEntries.erase(it); + gdcmDebugMacro( "One element erased: " << entryToRemove->GetKey() ); + entryToRemove->Unregister(); + return true; + } + } + gdcmWarningMacro( "Entry not found: " << entryToRemove->GetKey() ); + return false ; +} + +/** + * \brief Remove all entry in the Sequence Item + */ +void SQItem::ClearEntry() +{ + for(ListDocEntry::iterator cc = DocEntries.begin(); + cc != DocEntries.end(); + ++cc) + { + (*cc)->Unregister(); + } + DocEntries.clear(); +} + +/** + * \brief Get the first Dicom entry while visiting the SQItem + * \return The first DocEntry if found, otherwhise 0 + */ +DocEntry *SQItem::GetFirstEntry() +{ + ItDocEntries = DocEntries.begin(); + if ( ItDocEntries != DocEntries.end() ) + return *ItDocEntries; + return 0; +} + +/** + * \brief Get the next Dicom entry while visiting the SQItem + * \return The next DocEntry if found, otherwhise NULL + */ +DocEntry *SQItem::GetNextEntry() +{ + ++ItDocEntries; + if ( ItDocEntries != DocEntries.end() ) + return *ItDocEntries; + return NULL; +} + +/** + * \brief Gets a Dicom Element inside a SQ Item Entry + * @param group Group number of the Entry + * @param elem Element number of the Entry + * @return Entry whose (group,elem) was passed. 0 if not found + */ +DocEntry *SQItem::GetDocEntry(uint16_t group, uint16_t elem) +{ + for(ListDocEntry::iterator i = DocEntries.begin(); + i != DocEntries.end(); + ++i) + { + if ( (*i)->GetGroup() == group && (*i)->GetElement() == elem ) + return *i; + } + return NULL; +} + +/** + * \brief Copies all the attributes from an other DocEntrySet + * @param set entry to copy from + * @remarks The contained DocEntries a not copied, only referenced + */ +void SQItem::Copy(DocEntrySet *set) +{ + // Remove all previous entries + ClearEntry(); + + DocEntrySet::Copy(set); + + SQItem *sq = dynamic_cast(set); + if( sq ) + { + SQDepthLevel = sq->SQDepthLevel; + SQItemNumber = sq->SQItemNumber; + + DocEntries = sq->DocEntries; + for(ItDocEntries = DocEntries.begin();ItDocEntries != DocEntries.end();++ItDocEntries) + (*ItDocEntries)->Register(); + } +} + //----------------------------------------------------------------------------- // Protected //----------------------------------------------------------------------------- // Private -// end-user intended : the guy *wants* to create his own SeQuence ?!? -gdcmDocEntry *gdcmSQItem::NewDocEntryByNumber(guint16 group, - guint16 element) { -// TODO - gdcmDocEntry *a; - return a; -} +//----------------------------------------------------------------------------- +// Print +/* + * \brief canonical Printer + * @param os Stream to print to. + * @param indent Indentation string to be prepended during printing. + */ +void SQItem::Print(std::ostream &os, std::string const &) +{ + std::ostringstream s; + + if (SQDepthLevel > 0) + { + for (int i = 0; i < SQDepthLevel; ++i) + { + s << " | " ; + } + } + os << s.str() << " --- SQItem number " << SQItemNumber << std::endl; + for (ListDocEntry::iterator i = DocEntries.begin(); + i != DocEntries.end(); + ++i) + { + DocEntry *Entry = *i; + bool PrintEndLine = true; -gdcmDocEntry *gdcmSQItem::NewDocEntryByName (std::string Name) { -// TODO : - gdcmDocEntry *a; - return a; + os << s.str(); + Entry->SetPrintLevel(PrintLevel); + Entry->Print(os); + if ( dynamic_cast(Entry) ) + { + PrintEndLine = false; + } + if (PrintEndLine) + { + os << std::endl; + } + } } + //----------------------------------------------------------------------------- +} // end namespace gdcm