X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;ds=sidebyside;f=src%2FgdcmDictSet.cxx;h=ecef7934c3d3988d3e096d8da821c8af10f22017;hb=fa8fa610de8d935491343df2d8a543ff6fdb6e69;hp=5352bcae9007f2652ed037411165fa4284533ef4;hpb=70e24c6c61481f9836e26b6b44a9670d92a4f43b;p=gdcm.git diff --git a/src/gdcmDictSet.cxx b/src/gdcmDictSet.cxx index 5352bcae..ecef7934 100644 --- a/src/gdcmDictSet.cxx +++ b/src/gdcmDictSet.cxx @@ -1,36 +1,240 @@ +/*========================================================================= + + Program: gdcm + Module: $RCSfile: gdcmDictSet.cxx,v $ + Language: C++ + Date: $Date: 2005/07/11 20:44:52 $ + Version: $Revision: 1.68 $ + + 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 -#include "gdcmlib.h" -#include "gdcmUtil.h" +#include // For getenv +#include // For sprintf + +namespace gdcm +{ + +//----------------------------------------------------------------------------- +// Constructor / Destructor +/** + * \brief The Dictionary Set obtained with this constructor simply + * contains the Default Public dictionary. + */ +DictSet::DictSet() +{ + DictPath = BuildDictPath(); + std::string pubDictFile(DictPath); + pubDictFile += PUB_DICT_FILENAME; + Dicts[PUB_DICT_NAME] = new Dict(pubDictFile); +} + +/** + * \brief Destructor + */ +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 + VirtualEntries.clear(); +} + +//----------------------------------------------------------------------------- +// Public +/** + * \brief Loads a dictionary from a specified file, and add it + * to already the existing ones contained in this DictSet. + * @param filename Absolute or relative filename containing the + * dictionary to load. + * @param name Symbolic name that be used as identifier of the newly + * created dictionary. + */ +Dict *DictSet::LoadDictFromFile(std::string const &filename, + DictKey const &name) +{ + Dict *newDict = new Dict(filename); + AppendDict(newDict, name); + + return newDict; +} + +/** + * \brief Retrieve the specified dictionary (when existing) from this + * DictSet. + * @param dictName The symbolic name of the searched dictionary. + * \result The retrieved dictionary. + */ +Dict *DictSet::GetDict(DictKey const &dictName) +{ + DictSetHT::iterator dict = Dicts.find(dictName); + if ( dict != Dicts.end() ) + { + return dict->second; + } + return NULL; +} +/** + * \brief Create a DictEntry which will be referenced in no dictionary + * @param group Group number of the Entry + * @param elem Element number of the Entry + * @param vr Value Representation of the Entry + * @param vm Value Multiplicity of the Entry + * @param name English name of the Entry + * @return virtual entry + */ +DictEntry *DictSet::NewVirtualDictEntry( uint16_t group, + uint16_t elem, + TagName vr, + TagName vm, + TagName name) +{ + DictEntry *entry; -gdcmDictSet::gdcmDictSet(void) { - if (! LoadDicomV3Dict()) - return; + // Let's follow 'Purify' advice + // + // const std::string tag = DictEntry::TranslateToKey(group,elem) + // + "#" + vr + "#" + vm + "#" + name; +#if FASTTAGKEY && 0 + // FIXME + TagKey tag; + tag.tab[0] = group; + tag.tab[1] = elem; +#else + char res[10]; + sprintf(res,"%04x|%04x", group, elem); + ExtendedTagKey tag = res; + tag += "#" + vr + "#" + vm + "#" + name; +#endif + + ExtendedTagKeyHT::iterator it; + + it = VirtualEntries.find(tag); + if ( it != VirtualEntries.end() ) + { + entry = &(it->second); + } + else + { + DictEntry ent(group, elem, vr, vm, name); + VirtualEntries.insert( + ExtendedTagKeyHT::value_type(tag, ent) ); + entry = &(VirtualEntries.find(tag)->second); + } + + return entry; } -int gdcmDictSet::LoadDicomV3Dict(void) { - if (dicts.count(PUBDICTNAME)) - return 1; - return LoadDictFromFile(PUBDICTFILENAME, PUBDICTNAME); +/** + * \brief Get the first entry while visiting the DictSet + * \return The first Dict if found, otherwhise NULL + */ +Dict *DictSet::GetFirstEntry() +{ + ItDictHt = Dicts.begin(); + if ( ItDictHt != Dicts.end() ) + return ItDictHt->second; + return NULL; } -int gdcmDictSet::LoadDictFromFile(char * FileName, DictKey Name) { - gdcmDict *NewDict = new gdcmDict(FileName); - dicts[Name] = NewDict; +/** + * \brief Get the next entry while visiting the Hash table (DictSetHT) + * \note : meaningfull only if GetFirstEntry already called + * \return The next Dict if found, otherwhise NULL + */ +Dict *DictSet::GetNextEntry() +{ + gdcmAssertMacro (ItDictHt != Dicts.end()); + + ++ItDictHt; + if ( ItDictHt != Dicts.end() ) + return ItDictHt->second; + return NULL; } -void gdcmDictSet::Print(ostream& os) { - for (DictSetHT::iterator dict = dicts.begin(); dict != dicts.end(); ++dict){ - os << "Printing dictionary " << dict->first << " \n"; - dict->second->Print(os); - } +/** + * \brief Obtain from the GDCM_DICT_PATH environnement variable the + * path to directory containing the dictionaries. When + * the environnement variable is absent the path is defaulted + * to "../Dicts/". + * @return path to directory containing the dictionaries + */ +std::string DictSet::BuildDictPath() +{ + std::string resultPath; + const char *envPath; + envPath = getenv("GDCM_DICT_PATH"); + + if (envPath && (strlen(envPath) != 0)) + { + resultPath = envPath; + gdcmWarningMacro( "Dictionary path set from environnement"); + } + else + { + resultPath = PUB_DICT_PATH; + } + if ( resultPath[resultPath.length()-1] != '/' ) + { + resultPath += '/'; + } + + return resultPath; } -gdcmDict * gdcmDictSet::GetDict(DictKey DictName) { - DictSetHT::iterator dict = dicts.find(DictName); - return dict->second; +//----------------------------------------------------------------------------- +// Protected +/** + * \brief Adds a Dictionary to a DictSet + * \return always true + */ +bool DictSet::AppendDict(Dict *newDict, DictKey const &name) +{ + Dicts[name] = newDict; + + return true; } -gdcmDict * gdcmDictSet::GetDefaultPublicDict() { - return GetDict(PUBDICTNAME); +//----------------------------------------------------------------------------- +// Private + +//----------------------------------------------------------------------------- +// Print +/** + * \brief Print, in an informal fashion, the list of all the dictionaries + * contained is this DictSet, along with their respective content. + * @param os Output stream used for printing. + * @param indent Indentation string to be prepended during printing + */ +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