gdcmDictSet.cxx

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00001 /*=========================================================================
00002                                                                                 
00003   Program:   gdcm
00004   Module:    $RCSfile: gdcmDictSet.cxx,v $
00005   Language:  C++
00006   Date:      $Date: 2007/05/23 14:18:09 $
00007   Version:   $Revision: 1.78 $
00008                                                                                 
00009   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
00010   l'Image). All rights reserved. See Doc/License.txt or
00011   http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
00012                                                                                 
00013      This software is distributed WITHOUT ANY WARRANTY; without even
00014      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00015      PURPOSE.  See the above copyright notices for more information.
00016                                                                                 
00017 =========================================================================*/
00018 
00019 #include "gdcmDictSet.h"
00020 #include "gdcmDebug.h"
00021 #include "gdcmGlobal.h"
00022 #include <fstream>
00023 #include <stdlib.h>  // For getenv
00024 #include <stdio.h>   // For sprintf
00025 
00026 namespace GDCM_NAME_SPACE 
00027 {
00028 
00029 //-----------------------------------------------------------------------------
00030 // Constructor / Destructor
00035 DictSet::DictSet() 
00036 {
00037    DictPath = BuildDictPath();
00038    std::string pubDictFile(DictPath);
00039    pubDictFile += PUB_DICT_FILENAME;
00040    Dicts[PUB_DICT_NAME] = Dict::New(pubDictFile);
00041    // Stored redundantly to avoid at access HTable DictSet every time.
00042    Global::DefaultPubDict = Dicts[PUB_DICT_NAME];
00043 }
00044 
00048 DictSet::~DictSet() 
00049 {
00050    Global::DefaultPubDict = 0; // just a pointer!
00051    // Remove dictionaries
00052    for (DictSetHT::iterator tag = Dicts.begin(); tag != Dicts.end(); ++tag) 
00053    {
00054       if ( tag->second )
00055          tag->second->Delete();
00056    }
00057    Dicts.clear();
00058 }
00059 
00060 //-----------------------------------------------------------------------------
00061 // Public
00070 Dict *DictSet::LoadDictFromFile(std::string const &filename, 
00071                                 DictKey const &name) 
00072 {
00073    assert(Dicts.find(name)==Dicts.end());
00075    Dict *newDict = Dict::New(filename);
00076    Dicts[name] = newDict;
00077 
00078    return newDict;
00079 }
00080 
00087 Dict *DictSet::GetDict(DictKey const &dictName) 
00088 {
00089    DictSetHT::iterator dict = Dicts.find(dictName);
00090    if ( dict != Dicts.end() )
00091    {
00092       return dict->second;
00093    }
00094    return NULL;
00095 }
00096 
00101 Dict *DictSet::GetFirstDict()
00102 {
00103    ItDictHt = Dicts.begin();
00104    if ( ItDictHt != Dicts.end() )
00105       return ItDictHt->second;
00106    return NULL;
00107 }
00108 
00114 Dict *DictSet::GetNextDict()
00115 {
00116    gdcmAssertMacro (ItDictHt != Dicts.end());
00117   
00118    ++ItDictHt;
00119    if ( ItDictHt != Dicts.end() )
00120       return ItDictHt->second;
00121    return NULL;
00122 }
00123 
00131 std::string DictSet::BuildDictPath()
00132 {
00133    std::string resultPath;
00134    const char *envPath = getenv("GDCM_DICT_PATH");
00135 
00136    if (envPath && (strlen(envPath) != 0))
00137    {
00138       resultPath = envPath;
00139       gdcmStaticWarningMacro( "Dictionary path set from environnement");
00140    }
00141    else
00142    {
00143       resultPath = PUB_DICT_PATH;
00144    }
00145    if ( resultPath.length() && resultPath[resultPath.length()-1] != '/' )
00146    {
00147       resultPath += '/';
00148    }
00149    return resultPath;
00150 }
00151 
00152 //-----------------------------------------------------------------------------
00153 // Protected
00154 
00155 //-----------------------------------------------------------------------------
00156 // Private
00157 
00158 //-----------------------------------------------------------------------------
00159 // Print
00166 void DictSet::Print(std::ostream &os, std::string const & )
00167 {
00168    for (DictSetHT::iterator dict = Dicts.begin(); dict != Dicts.end(); ++dict)
00169    {
00170       os << "Printing dictionary " << dict->first << std::endl;
00171       dict->second->Print(os);
00172    }
00173 }
00174 
00175 //-----------------------------------------------------------------------------
00176 } // end namespace gdcm

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