+/**
+ * \brief Get the first entry while visiting *the* 'zero level' DocEntrySet
+ * (DocEntries out of any Sequence)
+ * \return The first DocEntry if found, otherwhise NULL
+ */
+DocEntry *ElementSet::GetFirstEntry()
+{
+ ItTagHT = TagHT.begin();
+ if (ItTagHT != TagHT.end())
+ return ItTagHT->second;
+ return NULL;
+}
+
+/**
+ * \brief Get the next entry while visiting *the* 'zero level' DocEntrySet
+ * (DocEntries out of any Sequence)
+ * \note : meaningfull only if GetFirstEntry already called
+ * \return The next DocEntry if found, otherwhise NULL
+ */
+DocEntry *ElementSet::GetNextEntry()
+{
+ gdcmAssertMacro (ItTagHT != TagHT.end());
+
+ ++ItTagHT;
+ if (ItTagHT != TagHT.end())
+ return ItTagHT->second;
+ return NULL;
+}
+
+/**
+ * \brief retrieves a Dicom Element using (group, element)
+ * @param group Group number of the searched Dicom Element
+ * @param elem Element number of the searched Dicom Element
+ * @return
+ */
+DocEntry *ElementSet::GetDocEntry(uint16_t group, uint16_t elem)
+{
+ TagKey key = DictEntry::TranslateToKey(group, elem);
+ TagDocEntryHT::iterator it = TagHT.find(key);
+
+ if ( it!=TagHT.end() )
+ return it->second;
+ return NULL;
+}
+
+/**
+ * \brief Copies all the attributes from an other DocEntrySet
+ * @param set entry to copy from
+ * @remarks The contained DocEntries a not copied, only referenced
+ */
+void ElementSet::Copy(DocEntrySet *set)
+{
+ // Remove all previous entries
+ ClearEntry();
+
+ DocEntrySet::Copy(set);
+
+ ElementSet *eltSet = dynamic_cast<ElementSet *>(set);
+ if( eltSet )
+ {
+ TagHT = eltSet->TagHT;
+ for(ItTagHT = TagHT.begin();ItTagHT != TagHT.end();++ItTagHT)
+ {
+ (ItTagHT->second)->Register();
+ }
+ }
+}
+
+/**
+ * \brief Checks whether *all* the DataEntries of the group have all
+ * the same type for VR (ImplicitVR or ExplicitVR)
+ * @param group group number to be checked
+ * @return 1:ImplicitVR 2:ExplicitVR -1:NotCoherent
+ */
+int ElementSet::IsVRCoherent( uint16_t group )
+{
+ uint16_t currentGroup;
+ int codeVR = -1;
+ int currentCodeVR;
+ for(TagDocEntryHT::iterator cc = TagHT.begin();cc != TagHT.end(); ++cc)
+ {
+ currentGroup = cc->second->GetGroup();
+
+ if ( currentGroup < group )
+ continue;
+ if ( currentGroup > group )
+ break;
+ // currentGroup == group
+ if (codeVR == -1)
+ {
+ if (cc->second->IsImplicitVR() )
+ codeVR = 1;
+ else
+ codeVR = 2;
+ continue;
+ }
+ else
+ {
+ if (cc->second->IsImplicitVR() )
+ currentCodeVR = 1; //Implicit
+ else
+ currentCodeVR = 2; // Explicit
+
+ if ( currentCodeVR == codeVR )
+ continue;
+ else
+ return -1; // -1 : not coherent
+ }
+ }
+ return codeVR;
+}
+
+
+//-----------------------------------------------------------------------------
+// Protected
+
+//-----------------------------------------------------------------------------
+// Private
+
+//-----------------------------------------------------------------------------
+// Print
+/**
+ * \brief Prints the Header Entries (Dicom Elements) from the H Table
+ * @param os ostream to write to
+ * @param indent Indentation string to be prepended during printing
+ */
+void ElementSet::Print(std::ostream &os, std::string const & )
+{
+ // Let's change the 'warning value' for Pixel Data,
+ // to avoid human reader to be confused by 'gdcm::NotLoaded'.
+ DataEntry *pixelElement = GetDataEntry(0x7fe0,0x0010);
+ if ( pixelElement != 0 )
+ {
+ pixelElement->SetFlag( DataEntry::FLAG_PIXELDATA );
+ }
+
+ for( TagDocEntryHT::const_iterator i = TagHT.begin(); i != TagHT.end(); ++i)
+ {
+ DocEntry *entry = i->second;
+
+ entry->SetPrintLevel(PrintLevel);
+ entry->Print(os);
+
+ if ( dynamic_cast<SeqEntry*>(entry) )
+ {
+ // Avoid the newline for a sequence:
+ continue;
+ }
+ os << std::endl;
+ }