gdcmDictSet.cxx

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/*=========================================================================
                                                                                
  Program:   gdcm
  Module:    $RCSfile: gdcmDictSet.cxx,v $
  Language:  C++
  Date:      $Date: 2005/02/05 01:37:08 $
  Version:   $Revision: 1.60 $
                                                                                
  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 "gdcmDictSet.h"
#include "gdcmDebug.h"
#include <fstream>
#include <stdlib.h>  // For getenv

namespace gdcm 
{

//-----------------------------------------------------------------------------
// Constructor / Destructor
DictSet::DictSet() 
{
   DictPath = BuildDictPath();
   std::string pubDictFile(DictPath);
   pubDictFile += PUB_DICT_FILENAME;
   Dicts[PUB_DICT_NAME] = new Dict(pubDictFile);
}

DictSet::~DictSet() 
{
   // Remove dictionaries
   for (DictSetHT::iterator tag = Dicts.begin(); tag != Dicts.end(); ++tag) 
   {
      Dict *entryToDelete = tag->second;
      if ( entryToDelete )
      {
         delete entryToDelete;
      }
      tag->second = NULL;
   }
   Dicts.clear();

   // Remove virtual dictionary entries
   VirtualEntry.clear();
}

//-----------------------------------------------------------------------------
// Public
Dict *DictSet::LoadDictFromFile(std::string const &filename, 
                                DictKey const &name) 
{
   Dict *newDict = new Dict(filename);
   AppendDict(newDict, name);

   return newDict;
}

Dict *DictSet::GetDict(DictKey const &dictName) 
{
   DictSetHT::iterator dict = Dicts.find(dictName);
   if(dict != Dicts.end())
   {
      return dict->second;
   }
   return NULL;
}

DictEntry *DictSet::NewVirtualDictEntry( uint16_t group,
                                         uint16_t element,
                                         TagName vr,
                                         TagName vm,
                                         TagName name)
{
   DictEntry *entry;
   const std::string tag = DictEntry::TranslateToKey(group,element)
                           + "#" + vr + "#" + vm + "#" + name;
   TagKeyHT::iterator it;
   
   it = VirtualEntry.find(tag);
   if(it != VirtualEntry.end())
   {
      entry = &(it->second);
   }
   else
   {
      DictEntry ent(group, element, vr, vm, name);
      VirtualEntry.insert(
         std::map<TagKey, DictEntry>::value_type
            (tag, ent));
      entry = &(VirtualEntry.find(tag)->second);
   }

   return entry;
}

Dict *DictSet::GetFirstEntry()
{
   ItDictHt = Dicts.begin();
   if( ItDictHt != Dicts.end() )
      return ItDictHt->second;
   return NULL;
}

Dict *DictSet::GetNextEntry()
{
   gdcmAssertMacro (ItDictHt != Dicts.end());
  
   ++ItDictHt;
   if ( ItDictHt != Dicts.end() )
      return ItDictHt->second;
   return NULL;
}

std::string DictSet::BuildDictPath() 
{
   std::string resultPath;
   const char *envPath = 0;
   envPath = getenv("GDCM_DICT_PATH");

   if (envPath && (strlen(envPath) != 0)) 
   {
      resultPath = envPath;
      if ( resultPath[resultPath.length()-1] != '/' )
      {
         resultPath += '/';
      }
      gdcmWarningMacro( "Dictionary path set from environnement");
   } 
   else
   {
      resultPath = PUB_DICT_PATH;
   }

   return resultPath;
}

//-----------------------------------------------------------------------------
// Protected
bool DictSet::AppendDict(Dict *newDict, DictKey const &name)
{
   Dicts[name] = newDict;

   return true;
}

//-----------------------------------------------------------------------------
// Private

//-----------------------------------------------------------------------------
// Print
void DictSet::Print(std::ostream &os, std::string const & )
{
   for (DictSetHT::iterator dict = Dicts.begin(); dict != Dicts.end(); ++dict)
   {
      os << "Printing dictionary " << dict->first << std::endl;
      dict->second->Print(os);
   }
}

//-----------------------------------------------------------------------------
} // end namespace gdcm

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