+
+//-----------------------------------------------------------------------------
+// Public
+
+/**
+ * \brief Add all the entries held in a source dictionary
+ * \note it concerns only Private Dictionnary
+ * @param filename from which to build the dictionary.
+ */
+bool Dict::AddDict(std::string const &filename)
+{
+ std::ifstream from( filename.c_str() );
+ if ( !from )
+ {
+ gdcmWarningMacro( "Can't open dictionary" << filename.c_str());
+ return false;
+ }
+ else
+ {
+ DoTheLoadingJob(from);
+ return true;
+ }
+}
+
+/**
+ * \brief Removes from the current Dicom Dict all the entries held in a source dictionary
+ * \note it concerns only Private Dictionnary
+ * @param filename from which we read the entries to remove.
+ */
+bool Dict::RemoveDict(std::string const &filename)
+{
+ std::ifstream from( filename.c_str() );
+ if ( !from )
+ {
+ gdcmWarningMacro( "Can't open dictionary" << filename.c_str());
+ return false;
+ }
+ else
+ {
+ uint16_t group;
+ uint16_t elem;
+ TagName vr;
+ TagName vm;
+ TagName name;
+
+ while ( true )
+ {
+ from >> std::hex;
+ from >> group;
+
+ if (from.eof())
+ break;
+
+ from >> elem;
+ from >> vr;
+ from >> vm;
+ // from >> std::ws; //remove white space
+ std::getline(from, name);
+
+ RemoveEntry(group,elem);
+ }
+ from.close();
+ return true;
+ }
+}
+
+/**
+ * \brief adds a new Dicom Dictionary Entry
+ * @param newEntry entry to add
+ * @return false if Dicom Element already exists
+ */
+bool Dict::AddEntry(DictEntry *newEntry)
+{
+ const TagKey &key = newEntry->GetKey();
+
+ if ( KeyHt.count(key) == 1 )
+ {
+ gdcmErrorMacro( "Already present:" << key );
+ return false;
+ }
+ else
+ {
+ newEntry->Register();
+ KeyHt.insert( TagKeyHT::value_type(key, newEntry));
+ return true;
+ }
+}
+
+/*
+ * \ brief replaces an already existing Dicom Element by a new one
+ * @ param newEntry new entry (overwrites any previous one with same tag)
+ * @ return false if Dicom Element doesn't exist
+ */
+
+ /* seems to be useless
+
+bool Dict::ReplaceEntry(DictEntry *newEntry) // seems to be useless
+{
+ const TagKey &key = newEntry->GetKey();
+ if ( RemoveEntry(key) )
+ {
+ newEntry->Register();
+ KeyHt.insert( TagKeyHT::value_type(key, newEntry));
+ return true;
+ }
+ return false;
+}
+*/
+
+/**
+ * \brief removes an already existing Dicom Dictionary Entry,
+ * identified by its Tag
+ * @param key (group|element)
+ * @return false if Dicom Dictionary Entry doesn't exist
+ */
+bool Dict::RemoveEntry(TagKey const &key)
+{
+ TagKeyHT::const_iterator it = KeyHt.find(key);
+ if ( it != KeyHt.end() )
+ {
+ it->second->Unregister(); // delete the entry
+ KeyHt.erase(key); // remove pointer from HTable
+
+ return true;
+ }
+ else
+ {
+ gdcmWarningMacro( "Unfound entry" << key );
+ return false;
+ }
+}
+
+/**
+ * \brief removes an already existing Dicom Dictionary Entry,
+ * identified by its group,element number
+ * @param group Dicom group number of the Dicom Element
+ * @param elem Dicom element number of the Dicom Element
+ * @return false if Dicom Dictionary Entry doesn't exist
+ */
+bool Dict::RemoveEntry(uint16_t group, uint16_t elem)
+{
+ return RemoveEntry(DictEntry::TranslateToKey(group, elem));
+}
+
+/**
+ * \brief Remove all Dicom Dictionary Entries
+ */
+void Dict::ClearEntry()
+{
+ // we assume all the pointed DictEntries are already cleaned-up
+ // when we clean KeyHt.
+ TagKeyHT::const_iterator it;
+
+ for(it = KeyHt.begin();it!=KeyHt.end();++it)
+ it->second->Unregister(); // delete the entry
+ KeyHt.clear(); // remove all the entries from HTable
+
+}
+
+/**
+ * \brief Get the dictionary entry identified by a given tag ("group|element")
+ * @param key tag of the searched entry
+ * @return the corresponding dictionary entry when existing, NULL otherwise
+ */
+DictEntry *Dict::GetEntry(TagKey const &key)
+{
+ TagKeyHT::iterator it = KeyHt.find(key);
+ if ( it == KeyHt.end() )
+ {
+ return 0;
+ }
+ return it->second;
+}
+/**
+ * \brief Get the dictionary entry identified by its "group" and "element")
+ * @param group Group number of the searched entry.
+ * @param elem Element number of the searched entry.
+ * @return the corresponding dictionary entry when existing, NULL otherwise
+ */
+DictEntry *Dict::GetEntry(uint16_t group, uint16_t elem)
+{
+ TagKey key = DictEntry::TranslateToKey(group, elem);
+ TagKeyHT::iterator it = KeyHt.find(key);
+ if ( it == KeyHt.end() )
+ {
+ return 0;
+ }
+ return it->second;
+}
+
+/**
+ * \brief Get the first entry while visiting the Dict entries
+ * \return The first DicEntry if found, otherwhise NULL
+ */
+DictEntry *Dict::GetFirstEntry()
+{
+ ItKeyHt = KeyHt.begin();
+ if ( ItKeyHt != KeyHt.end() )
+ return ItKeyHt->second;
+ return NULL;
+}
+
+/**
+ * \brief Get the next entry while visiting the Hash table (KeyHt)
+ * \note : meaningfull only if GetFirstEntry already called
+ * \return The next DictEntry if found, otherwhise NULL
+ */
+DictEntry *Dict::GetNextEntry()
+{
+ gdcmAssertMacro (ItKeyHt != KeyHt.end());
+
+ ++ItKeyHt;
+ if (ItKeyHt != KeyHt.end())
+ return ItKeyHt->second;
+ return NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Protected
+
+//-----------------------------------------------------------------------------
+// Private
+/**
+ * \brief Add all the dictionary entries from an already open source file
+ * @param from input stream to read from.
+ */
+void Dict::DoTheLoadingJob(std::ifstream &from)
+{
+ if (!from)
+ return;
+
+ uint16_t group;
+ uint16_t elem;
+ VRKey vr;
+ TagName vm;
+ TagName name;
+
+ DictEntry *newEntry;
+ while ( true )
+ {
+ from >> std::hex;
+ from >> group;
+ from >> elem;
+ from >> vr;
+ from >> vm;
+ from >> std::ws; //remove white space
+ std::getline(from, name);
+
+ if(from.eof()) {
+ break;
+ }
+
+ newEntry = DictEntry::New(group, elem, vr, vm, name);
+ AddEntry(newEntry);
+ newEntry->Delete();
+ }
+ from.close();
+}
+//-----------------------------------------------------------------------------
+// Print
+/**
+ * \brief Print all the dictionary entries contained in this dictionary.
+ * Entries will be sorted by tag i.e. the couple (group, element).
+ * @param os The output stream to be written to.
+ * @param indent Indentation string to be prepended during printing
+ */
+void Dict::Print(std::ostream &os, std::string const & )
+{
+ os << "Dict file name : [" << Filename << "]" << std::endl;
+ std::ostringstream s;
+
+ for (TagKeyHT::iterator tag = KeyHt.begin(); tag != KeyHt.end(); ++tag)
+ {
+std::cout << tag->second->GetKey() << " " << tag->second->GetName()
+ << std::endl;
+ s << "Entry : ";
+ s << "(" << tag->second->GetKey() << ") = "
+ << std::dec;
+ s << tag->second->GetVR() << ", ";
+ s << tag->second->GetVM() << ", ";
+ s << tag->second->GetName() << "." << std::endl;
+
+ }
+ os << s.str();
+
+}
+
+//-----------------------------------------------------------------------------
+} // end namespace gdcm