1 /*=========================================================================
4 Module: $RCSfile: gdcmSQItem.cxx,v $
6 Date: $Date: 2004/10/22 03:05:42 $
7 Version: $Revision: 1.30 $
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 =========================================================================*/
19 #include "gdcmSQItem.h"
20 #include "gdcmSeqEntry.h"
21 #include "gdcmValEntry.h"
22 #include "gdcmBinEntry.h"
23 #include "gdcmGlobal.h"
25 #include "gdcmDebug.h"
31 //-----------------------------------------------------------------------------
32 // Constructor / Destructor
35 * \brief Constructor from a given SQItem
37 SQItem::SQItem(int depthLevel )
40 SQDepthLevel = depthLevel;
44 * \brief Canonical destructor.
48 for(ListDocEntry::iterator cc = docEntries.begin();
49 cc != docEntries.end();
57 //-----------------------------------------------------------------------------
60 * \brief canonical Printer
62 void SQItem::Print(std::ostream& os)
68 for (int i = 0; i < SQDepthLevel; ++i)
73 std::cout << s.str() << " --- SQItem number " << SQItemNumber << std::endl;
74 for (ListDocEntry::iterator i = docEntries.begin();
75 i != docEntries.end();
79 bool PrintEndLine = true;
82 Entry->SetPrintLevel(2);
84 if ( SeqEntry* seqEntry = dynamic_cast<SeqEntry*>(Entry) )
86 (void)seqEntry; //not used
98 * \brief canonical Writer
100 void SQItem::Write(std::ofstream* fp,FileType filetype)
102 uint16_t item[4] = { 0xfffe, 0xe000, 0xffff, 0xffff };
103 uint16_t itemt[4]= { 0xfffe, 0xe00d, 0xffff, 0xffff };
105 //we force the writting of an 'Item' Start Element
106 // because we want to write the Item as a 'no Length' item
107 fp->write((char*)&item[0],8); // fffe e000 ffff ffff
109 for (ListDocEntry::iterator i = docEntries.begin();
110 i != docEntries.end();
113 // we skip delimitors (start and end one) because
114 // we force them as 'no length'
115 if ( (*i)->GetGroup() == 0xfffe )
120 // Fix in order to make some MR PHILIPS images e-film readable
121 // see gdcmData/gdcm-MR-PHILIPS-16-Multi-Seq.dcm:
122 // we just *always* ignore spurious fffe|0000 tag !
123 if ( (*i)->GetGroup() == 0xfffe && (*i)->GetElement() == 0x0000 )
125 break; // FIXME : continue; ?!?
128 (*i)->Write(fp, filetype);
131 //we force the writting of an 'Item Delimitation' item
132 // because we wrote the Item as a 'no Length' item
133 fp->write((char*)&itemt[0],8); // fffe e000 ffff ffff
137 //-----------------------------------------------------------------------------
140 * \brief adds any Entry (Dicom Element) to the Sequence Item
142 bool SQItem::AddEntry(DocEntry* entry)
144 docEntries.push_back(entry);
145 //TODO : check if it worked
150 * \brief Sets Entry (Dicom Element) value of an element,
151 * specified by it's tag (Group, Number)
152 * and the length, too ... inside a SQ Item
153 * If the Element is not found, it's just created !
154 * \warning we suppose, right now, the element belongs to a Public Group
156 * @param val string value to set
157 * @param group Group number of the searched tag.
158 * @param element Element number of the searched tag.
159 * @return true if element was found or created successfully
162 bool SQItem::SetEntryByNumber(std::string val, uint16_t group,
165 for(ListDocEntry::iterator i = docEntries.begin(); i != docEntries.end(); ++i)
167 if ( (*i)->GetGroup() == 0xfffe && (*i)->GetElement() == 0xe000 )
172 if ( ( group < (*i)->GetGroup() )
173 ||( group == (*i)->GetGroup() && element < (*i)->GetElement()) )
175 // instead of ReplaceOrCreateByNumber
176 // that is a method of Document :-(
178 TagKey key = DictEntry::TranslateToKey(group, element);
180 if ( ! PtagHT->count(key))
182 // we assume a Public Dictionnary *is* loaded
183 Dict *pubDict = Global::GetDicts()->GetDefaultPubDict();
184 // if the invoked (group,elem) doesn't exist inside the Dictionary
185 // we create a VirtualDictEntry
186 DictEntry *dictEntry = pubDict->GetDictEntryByNumber(group,
188 if (dictEntry == NULL)
191 Global::GetDicts()->NewVirtualDictEntry(group, element,
194 // we assume the constructor didn't fail
195 entry = new ValEntry(dictEntry);
198 /// better we don't assume too much !
199 /// SQItem is now used to describe any DICOMDIR related object
203 DocEntry* foundEntry = PtagHT->find(key)->second;
204 entry = dynamic_cast<ValEntry*>(foundEntry);
207 dbg.Verbose(0, "SQItem::SetEntryByNumber: docEntries"
208 " contains non ValEntry occurences");
213 entry->SetValue(val);
215 entry->SetLength(val.length());
216 docEntries.insert(i,entry);
220 if (group == (*i)->GetGroup() && element == (*i)->GetElement() )
222 if ( ValEntry* entry = dynamic_cast<ValEntry*>(*i) )
224 entry->SetValue(val);
226 (*i)->SetLength(val.length());
232 //-----------------------------------------------------------------------------
237 * \brief Gets a Dicom Element inside a SQ Item Entry, by number
240 DocEntry* SQItem::GetDocEntryByNumber(uint16_t group, uint16_t element)
242 for(ListDocEntry::iterator i = docEntries.begin();
243 i != docEntries.end(); ++i)
245 if ( (*i)->GetGroup() == group && (*i)->GetElement() == element )
254 * \brief Get the value of a Dicom Element inside a SQ Item Entry, by number
258 std::string SQItem::GetEntryByNumber(uint16_t group, uint16_t element)
260 for(ListDocEntry::iterator i = docEntries.begin();
261 i != docEntries.end(); ++i)
263 if ( (*i)->GetGroup() == group && (*i)->GetElement() == element)
265 return ((ValEntry *)(*i))->GetValue(); //FIXME
270 //-----------------------------------------------------------------------------
274 //-----------------------------------------------------------------------------
276 } // end namespace gdcm