1 /*=========================================================================
4 Module: $RCSfile: gdcmDict.cxx,v $
6 Date: $Date: 2004/10/27 22:31:12 $
7 Version: $Revision: 1.48 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
21 #include "gdcmDebug.h"
30 //-----------------------------------------------------------------------------
31 // Constructor / Destructor
34 * @param filename from which to build the dictionary.
36 Dict::Dict(std::string const & filename)
44 std::ifstream from( filename.c_str() );
45 dbg.Error(!from, "Dict::Dict: can't open dictionary",
55 from >> std::ws; //remove white space
56 std::getline(from, name);
58 DictEntry newEntry(group, element, vr, fourth, name);
59 AddNewEntry(newEntry);
71 /* for (TagKeyHT::iterator tag = KeyHt.begin(); tag != KeyHt.end(); ++tag)
73 DictEntry* entryToDelete = tag->second;
79 // Since AddNewEntry adds symetrical in both KeyHt and NameHT we can
80 // assume all the pointed DictEntries are already cleaned-up when
86 //-----------------------------------------------------------------------------
89 * \brief Print all the dictionary entries contained in this dictionary.
90 * Entries will be sorted by tag i.e. the couple (group, element).
91 * @param os The output stream to be written to.
93 void Dict::Print(std::ostream &os)
95 os << "Dict file name : " << Filename << std::endl;
100 * \brief Print all the dictionary entries contained in this dictionary.
101 * Entries will be sorted by tag i.e. the couple (group, element).
102 * @param os The output stream to be written to.
104 void Dict::PrintByKey(std::ostream &os)
106 std::ostringstream s;
108 for (TagKeyHT::iterator tag = KeyHt.begin(); tag != KeyHt.end(); ++tag)
111 s << "(" << std::hex << std::setw(4) << tag->second.GetGroup() << ',';
112 s << std::hex << std::setw(4) << tag->second.GetElement() << ") = "
114 s << tag->second.GetVR() << ", ";
115 s << tag->second.GetFourth() << ", ";
116 s << tag->second.GetName() << "." << std::endl;
122 * \brief Print all the dictionary entries contained in this dictionary.
123 * Entries will be sorted by the name of the dictionary entries.
124 * \warning AVOID USING IT : the name IS NOT an identifier;
125 * unpredictable result
126 * @param os The output stream to be written to.
128 void Dict::PrintByName(std::ostream& os)
130 std::ostringstream s;
132 for (TagNameHT::iterator tag = NameHt.begin(); tag != NameHt.end(); ++tag)
135 s << tag->second.GetName() << ",";
136 s << tag->second.GetVR() << ", ";
137 s << tag->second.GetFourth() << ", ";
138 s << "(" << std::hex << std::setw(4) << tag->second.GetGroup() << ',';
139 s << std::hex << std::setw(4) << tag->second.GetElement() << ") = ";
140 s << std::dec << std::endl;
145 //-----------------------------------------------------------------------------
149 * \brief adds a new Dicom Dictionary Entry
150 * @param newEntry entry to add
151 * @return false if Dicom Element already exists
153 bool Dict::AddNewEntry(DictEntry const & newEntry)
155 const TagKey & key = newEntry.GetKey();
157 if(KeyHt.count(key) == 1)
159 dbg.Verbose(1, "Dict::AddNewEntry already present", key.c_str());
164 //KeyHt[newEntry.GetKey()] = newEntry;
166 TagKeyHT::value_type<TagKey, DictEntry>
167 (newEntry.GetKey(), newEntry));
168 //NameHt[newEntry.GetName()] = newEntry;
170 TagNameHT::value_type<TagName, DictEntry>
171 (newEntry.GetName(), newEntry ));
178 * \brief replaces an already existing Dicom Element by a new one
179 * @param newEntry new entry (overwrites any previous one with same tag)
180 * @return false if Dicom Element doesn't exist
182 bool Dict::ReplaceEntry(DictEntry const & newEntry)
184 if ( RemoveEntry(newEntry.GetKey()) )
186 //KeyHt[newEntry.GetKey()] = newEntry;
188 TagKeyHT::value_type<TagKey, DictEntry>
189 (newEntry.GetKey(), newEntry));
190 //NameHt[newEntry.GetName()] = newEntry;
192 TagNameHT::value_type<TagName, DictEntry>
193 (newEntry.GetName(), newEntry ));
201 * \brief removes an already existing Dicom Dictionary Entry,
202 * identified by its Tag
203 * @param key (group|element)
204 * @return false if Dicom Dictionary Entry doesn't exist
206 bool Dict::RemoveEntry (TagKey const & key)
208 TagKeyHT::const_iterator it = KeyHt.find(key);
209 if(it != KeyHt.end())
211 const DictEntry & entryToDelete = it->second;
212 NameHt.erase(entryToDelete.GetName());
219 dbg.Verbose(1, "Dict::RemoveEntry unfound entry", key.c_str());
225 * \brief removes an already existing Dicom Dictionary Entry,
226 * identified by its group,element number
227 * @param group Dicom group number of the Dicom Element
228 * @param element Dicom element number of the Dicom Element
229 * @return false if Dicom Dictionary Entry doesn't exist
231 bool Dict::RemoveEntry (uint16_t group, uint16_t element)
233 return RemoveEntry(DictEntry::TranslateToKey(group, element));
237 * \brief Get the dictionnary entry identified by it's name.
238 * @param name element of the ElVal to modify
239 * \warning : NEVER use it !
240 * the 'name' IS NOT an identifier within the Dicom Dicom Dictionary
241 * the name MAY CHANGE between two versions !
242 * @return the corresponding dictionnary entry when existing, NULL otherwise
244 DictEntry* Dict::GetDictEntryByName(TagName const & name)
246 TagNameHT::iterator it = NameHt.find(name);
247 if ( it == NameHt.end() )
251 return &(it->second);
255 * \brief Get the dictionnary entry identified by a given tag (group,element)
256 * @param group group of the entry to be found
257 * @param element element of the entry to be found
258 * @return the corresponding dictionnary entry when existing, NULL otherwise
260 DictEntry* Dict::GetDictEntryByNumber(uint16_t group, uint16_t element)
262 TagKey key = DictEntry::TranslateToKey(group, element);
263 TagKeyHT::iterator it = KeyHt.find(key);
264 if ( it == KeyHt.end() )
268 return &(it->second);
272 * \brief Consider all the entries of the public dicom dictionnary.
273 * Build all list of all the tag names of all those entries.
274 * \sa DictSet::GetPubDictTagNamesByCategory
275 * @return A list of all entries of the public dicom dictionnary.
277 EntryNamesList* Dict::GetDictEntryNames()
279 EntryNamesList *result = new EntryNamesList;
280 for (TagKeyHT::iterator tag = KeyHt.begin(); tag != KeyHt.end(); ++tag)
282 result->push_back( tag->second.GetName() );
289 * \brief Consider all the entries of the public dicom dictionnary.
290 * Build an hashtable whose keys are the names of the groups
291 * (fourth field in each line of dictionary) and whose corresponding
292 * values are lists of all the dictionnary entries among that
293 * group. Note that apparently the Dicom standard doesn't explicitely
294 * define a name (as a string) for each group.
295 * A typical usage of this method would be to enable a dynamic
296 * configuration of a Dicom file browser: the admin/user can
297 * select in the interface which Dicom tags should be displayed.
298 * \warning Dicom *doesn't* define any name for any 'categorie'
299 * (the dictionnary fourth field was formerly NIH defined
300 * - and no longer he is-
301 * and will be removed when Dicom provides us a text file
302 * with the 'official' Dictionnary, that would be more friendly
303 * than asking us to perform a line by line check of the dictionnary
304 * at the beginning of each year to -try to- guess the changes)
305 * Therefore : please NEVER use that fourth field :-(
307 * @return An hashtable: whose keys are the names of the groups and whose
308 * corresponding values are lists of all the dictionnary entries
311 EntryNamesByCatMap *Dict::GetDictEntryNamesByCategory()
313 EntryNamesByCatMap *result = new EntryNamesByCatMap;
315 for (TagKeyHT::iterator tag = KeyHt.begin(); tag != KeyHt.end(); ++tag)
317 (*result)[tag->second.GetFourth()].push_back(tag->second.GetName());
323 //-----------------------------------------------------------------------------
326 //-----------------------------------------------------------------------------
329 //-----------------------------------------------------------------------------
331 } // end namespace gdcm