1 /*=========================================================================
4 Module: $RCSfile: gdcmSQItem.cxx,v $
6 Date: $Date: 2005/01/25 11:11:59 $
7 Version: $Revision: 1.59 $
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"
24 #include "gdcmDictSet.h"
26 #include "gdcmDebug.h"
32 //-----------------------------------------------------------------------------
33 // Constructor / Destructor
35 * \brief Constructor from a given SQItem
37 SQItem::SQItem(int depthLevel )
40 SQDepthLevel = depthLevel;
45 * \brief Canonical destructor.
52 //-----------------------------------------------------------------------------
55 * \brief canonical Printer
56 * @param os Stream to print to.
57 * @param indent Indentation string to be prepended during printing.
59 void SQItem::Print(std::ostream &os, std::string const &)
65 for (int i = 0; i < SQDepthLevel; ++i)
70 os << s.str() << " --- SQItem number " << SQItemNumber << std::endl;
71 for (ListDocEntry::iterator i = DocEntries.begin();
72 i != DocEntries.end();
76 bool PrintEndLine = true;
79 Entry->SetPrintLevel(PrintLevel);
81 if ( dynamic_cast<SeqEntry*>(Entry) )
93 * \brief canonical Writer
94 * @param fp file pointer to an already open file.
95 * @param filetype type of the file (ACR, ImplicitVR, ExplicitVR, ...)
97 void SQItem::WriteContent(std::ofstream *fp, FileType filetype)
100 uint16_t item[4] = { 0xfffe, 0xe000, 0xffff, 0xffff };
101 uint16_t itemt[4]= { 0xfffe, 0xe00d, 0xffff, 0xffff };
103 //we force the writting of an 'Item' Start Element
104 // because we want to write the Item as a 'no Length' item
107 binary_write( *fp, item[j]); // fffe e000 ffff ffff
110 for (ListDocEntry::iterator it = DocEntries.begin();
111 it != DocEntries.end();
114 // we skip delimitors (start and end one) because
115 // we force them as 'no length'
116 if ( (*it)->GetGroup() == 0xfffe )
121 // Fix in order to make some MR PHILIPS images e-film readable
122 // see gdcmData/gdcm-MR-PHILIPS-16-Multi-Seq.dcm:
123 // we just *always* ignore spurious fffe|0000 tag !
124 if ( (*it)->GetGroup() == 0xfffe && (*it)->GetElement() == 0x0000 )
126 break; // FIXME : continue; ?!?
129 (*it)->WriteContent(fp, filetype);
132 //we force the writting of an 'Item Delimitation' item
133 // because we wrote the Item as a 'no Length' item
136 binary_write( *fp, itemt[j]); // fffe e000 ffff ffff
141 //-----------------------------------------------------------------------------
144 * \brief Remove all entry in the Sequence Item
146 void SQItem::ClearEntry()
148 for(ListDocEntry::iterator cc = DocEntries.begin();
149 cc != DocEntries.end();
158 * \brief adds any Entry (Dicom Element) to the Sequence Item
159 * @param entry Entry to add
161 bool SQItem::AddEntry(DocEntry *entry)
163 DocEntries.push_back(entry);
164 //TODO : check if it worked
169 * \brief Sets Entry (Dicom Element) value of an element,
170 * specified by it's tag (Group, Number)
171 * and the length, too ... inside a SQ Item
172 * If the Element is not found, it's just created !
173 * \warning we suppose, right now, the element belongs to a Public Group
175 * @param val string value to set
176 * @param group Group number of the searched tag.
177 * @param elem Element number of the searched tag.
178 * @return true if element was found or created successfully
181 bool SQItem::SetEntryValue(std::string const &val, uint16_t group,
184 for(ListDocEntry::iterator i = DocEntries.begin();
185 i != DocEntries.end();
188 if ( (*i)->GetGroup() == 0xfffe && (*i)->GetElement() == 0xe000 )
193 if ( ( group < (*i)->GetGroup() )
194 ||( group == (*i)->GetGroup() && elem < (*i)->GetElement()) )
196 // instead of Insert, that is a method of Document :-(
198 TagKey key = DictEntry::TranslateToKey(group, elem);
200 // we assume a Public Dictionary *is* loaded
201 Dict *pubDict = Global::GetDicts()->GetDefaultPubDict();
202 // if the invoked (group,elem) doesn't exist inside the Dictionary
203 // we create a VirtualDictEntry
204 DictEntry *dictEntry = pubDict->GetEntry(group, elem);
205 if (dictEntry == NULL)
208 Global::GetDicts()->NewVirtualDictEntry(group, elem,
212 // we assume the constructor didn't fail
213 entry = new ValEntry(dictEntry);
216 entry->SetValue(val);
218 DocEntries.insert(i,entry);
222 if (group == (*i)->GetGroup() && elem == (*i)->GetElement() )
224 if ( ValEntry *entry = dynamic_cast<ValEntry*>(*i) )
226 entry->SetValue(val);
235 * \brief Clear the std::list from given entry AND delete the entry.
236 * @param entryToRemove Entry to remove AND delete.
237 * @return true if the entry was found and removed; false otherwise
239 bool SQItem::RemoveEntry( DocEntry* entryToRemove)
241 for(ListDocEntry::iterator it = DocEntries.begin();
242 it != DocEntries.end();
245 if( *it == entryToRemove)
247 DocEntries.erase(it);
248 gdcmVerboseMacro( "One element erased: " << entryToRemove->GetKey() );
249 delete entryToRemove;
253 gdcmVerboseMacro( "Entry not found: " << entryToRemove->GetKey() );
258 * \brief Clear the std::list from given entry BUT keep the entry.
259 * @param entryToRemove Entry to remove.
260 * @return true if the entry was found and removed; false otherwise
262 bool SQItem::RemoveEntryNoDestroy(DocEntry* entryToRemove)
264 for(ListDocEntry::iterator it = DocEntries.begin();
265 it != DocEntries.end();
268 if( *it == entryToRemove)
270 DocEntries.erase(it);
271 gdcmVerboseMacro( "One element erased, no destroyed: "
272 << entryToRemove->GetKey() );
277 gdcmVerboseMacro( "Entry not found:" << entryToRemove->GetKey() );
282 * \brief Get the first Dicom entry while visiting the SQItem
283 * \return The first DocEntry if found, otherwhise 0
285 DocEntry * SQItem::GetFirstEntry()
287 ItDocEntries = DocEntries.begin();
288 if (ItDocEntries != DocEntries.end())
289 return *ItDocEntries;
294 * \brief Get the next Dicom entry while visiting the chained list
295 * \return The next DocEntry if found, otherwhise NULL
297 DocEntry *SQItem::GetNextEntry()
299 // gdcmAssertMacro (ItDocEntries != DocEntries.end());
302 if (ItDocEntries != DocEntries.end())
303 return *ItDocEntries;
308 //-----------------------------------------------------------------------------
311 * \brief Gets a Dicom Element inside a SQ Item Entry
312 * @param group Group number of the Entry
313 * @param elem Element number of the Entry
314 * @return Entry whose (group,elem) was passed. 0 if not found
316 DocEntry *SQItem::GetDocEntry(uint16_t group, uint16_t elem)
318 for(ListDocEntry::iterator i = DocEntries.begin();
319 i != DocEntries.end(); ++i)
321 if ( (*i)->GetGroup() == group && (*i)->GetElement() == elem )
330 * \brief Gets a Dicom Element inside a SQ Item Entry
331 * @param group Group number of the Entry
332 * @param elem Element number of the Entry
333 * @return Entry whose (group,elem) was passed. 0 if not found
335 ValEntry* SQItem::GetValEntry(uint16_t group, uint16_t elem)
337 DocEntry *d = GetDocEntry(group, elem);
338 if ( ValEntry *e = dynamic_cast<ValEntry*>(d) )
344 * \brief Gets a Dicom Element inside a SQ Item Entry
345 * @param group Group number of the Entry
346 * @param elem Element number of the Entry
347 * @return Entry whose (group,elem) was passed. 0 if not found
349 BinEntry* SQItem::GetBinEntry(uint16_t group, uint16_t elem)
351 DocEntry *d = GetDocEntry(group, elem);
352 if ( BinEntry *e = dynamic_cast<BinEntry*>(d) )
358 * \brief Gets a Dicom Element inside a SQ Item Entry
359 * @param group Group number of the Entry
360 * @param elem Element number of the Entry
361 * @return Entry whose (group,elem) was passed. 0 if not found
363 SeqEntry* SQItem::GetSeqEntry(uint16_t group, uint16_t elem)
365 DocEntry *d = GetDocEntry(group, elem);
366 if ( SeqEntry *e = dynamic_cast<SeqEntry*>(d) )
373 * \brief Get the value of a Dicom Element inside a SQ Item Entry
374 * \note : meaningfull only if the required entry is NEITHER a SeqEntry
376 * @param group Group number of the Entry
377 * @param elem Element number of the Entry
378 * @return 'string value' of the entry whose (group,elem) was passed.
379 * GDCM_UNFOUND if not found
382 std::string SQItem::GetEntryValue(uint16_t group, uint16_t elem)
386 DocEntry *e = GetFirstEntry();
389 if ( e->GetGroup() == group && e->GetElement() == elem)
392 if (ValEntry *ve = dynamic_cast<ValEntry*>(e))
393 return ve->GetValue();
398 for(ListDocEntry::iterator i = DocEntries.begin();
399 i != DocEntries.end(); ++i)
401 if ( (*i)->GetGroup() == group && (*i)->GetElement() == elem)
403 if (ValEntry *ve = dynamic_cast<ValEntry*>(*i))
404 return ve->GetValue();
409 //-----------------------------------------------------------------------------
413 //-----------------------------------------------------------------------------
415 } // end namespace gdcm