/*========================================================================= Program: gdcm Module: $RCSfile: gdcmDocument.h,v $ Language: C++ Date: $Date: 2004/06/28 16:00:18 $ Version: $Revision: 1.18 $ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de l'Image). All rights reserved. See Doc/License.txt or http://www.creatis.insa-lyon.fr/Public/Gdcm/License.htm for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notices for more information. =========================================================================*/ #ifndef GDCMDOCUMENT_H #define GDCMDOCUMENT_H #include "gdcmCommon.h" #include "gdcmVR.h" #include "gdcmTS.h" #include "gdcmException.h" #include "gdcmDictSet.h" #include "gdcmDocEntry.h" class gdcmValEntry; class gdcmBinEntry; class gdcmSeqEntry; #include "gdcmDocEntrySet.h" #include "gdcmElementSet.h" #include #include //----------------------------------------------------------------------------- typedef std::string VRKey; typedef std::string VRAtr; typedef std::map VRHT; // Value Representation Hash Table //----------------------------------------------------------------------------- /** * \brief Derived by both gdcmHeader and gdcmDicomDir */ class GDCM_EXPORT gdcmDocument : public gdcmElementSet { friend class gdcmFile; private: /// Public dictionary used to parse this header gdcmDict *RefPubDict; /// \brief Optional "shadow dictionary" (private elements) used to parse /// this header gdcmDict *RefShaDict; /// \brief Equals =1 if user wants to skip shadow groups while parsing /// (to save space) int IgnoreShadow; /// \brief Size threshold above which an element value will NOT be loaded /// in memory (to avoid loading the image/volume itself). By default, /// this upper bound is fixed to 1024 bytes (which might look reasonable /// when one considers the definition of the various VR contents). guint32 MaxSizeLoadEntry; /// \brief Size threshold above which an element value will NOT be *printed* /// in order no to polute the screen output. By default, this upper bound /// is fixed to 64 bytes. guint32 MaxSizePrintEntry; protected: /// Refering underlying filename. std::string Filename; /// \brief SWap code (e.g. Big Endian, Little Endian, Bad Big Endian, /// Bad Little Endian) according to the processor Endianity and /// what is written on disc. int sw; /// File Pointer, opened during Header parsing. FILE *fp; /// ACR, ACR_LIBIDO, ExplicitVR, ImplicitVR, Unknown FileType Filetype; /// After opening the file, we read HEADER_LENGTH_TO_READ bytes. static const unsigned int HEADER_LENGTH_TO_READ; /// \brief Elements whose value is longer than MAX_SIZE_LOAD_ELEMENT_VALUE /// are NOT loaded. static const unsigned int MAX_SIZE_LOAD_ELEMENT_VALUE; /// \brief Elements whose value is longer than MAX_SIZE_PRINT_ELEMENT_VALUE /// are NOT printed. /// \todo Currently not used since collides with #define in /// \ref gdcmDocEntry.cxx. See also /// \ref gdcmDocument::SetMaxSizePrintEntry() static const unsigned int MAX_SIZE_PRINT_ELEMENT_VALUE; /// Will be set 1 if user asks to 'go inside' the 'sequences' (VR = "SQ") int enableSequences; /// \brief Amount of printed details for each Header Entry (Dicom Element): /// 0 : stands for the least detail level. int printLevel; public: // the 2 following will be merged virtual void PrintPubDict (std::ostream &os = std::cout); virtual void PrintShaDict (std::ostream &os = std::cout); // Dictionnaries gdcmDict *GetPubDict(void); gdcmDict *GetShaDict(void); bool SetShaDict(gdcmDict *dict); bool SetShaDict(DictKey dictName); // Informations contained in the parser virtual bool IsReadable(void); bool IsGivenTransferSyntax(const std::string & SyntaxToCheck); bool IsImplicitVRLittleEndianTransferSyntax(void); bool IsExplicitVRLittleEndianTransferSyntax(void); bool IsDeflatedExplicitVRLittleEndianTransferSyntax(void); bool IsExplicitVRBigEndianTransferSyntax(void); bool IsJPEGBaseLineProcess1TransferSyntax(void); bool IsJPEGExtendedProcess2_4TransferSyntax(void); bool IsJPEGExtendedProcess3_5TransferSyntax(void); bool IsJPEGSpectralSelectionProcess6_8TransferSyntax(void); bool IsRLELossLessTransferSyntax(void); bool IsJPEGLossless(void); bool IsJPEG2000(void); bool IsDicomV3(void); FileType GetFileType(void); // Read (used in gdcmFile, gdcmDicomDir) FILE *OpenFile(bool exception_on_error = false) throw(gdcmFileError); bool CloseFile(void); // Write (used in gdcmFile, gdcmDicomDir) void Write(FILE * fp,FileType type); // New stuff, with recursive exploration gdcmValEntry * ReplaceOrCreateByNumber(std::string Value, guint16 Group, guint16 Elem); gdcmBinEntry * ReplaceOrCreateByNumber(void *voidArea, int lgth, guint16 Group, guint16 Elem); bool ReplaceIfExistByNumber (char *Value, guint16 Group, guint16 Elem); virtual void *LoadEntryVoidArea (guint16 Group, guint16 Element); virtual void *LoadEntryVoidArea (gdcmBinEntry*); // System access guint16 SwapShort(guint16); // needed by gdcmFile guint32 SwapLong(guint32); // needed by gdcmFile guint16 UnswapShort(guint16); // needed by gdcmFile guint32 UnswapLong(guint32); // needed by gdcmFile protected: // Constructor and destructor are protected to forbid end user // to instanciate from this class gdcmDocument (only gdcmHeader and // gdcmDicomDir are meaningfull). gdcmDocument(bool exception_on_error = false); gdcmDocument(std::string const & inFilename, bool exception_on_error = false, bool enable_sequences = false, bool ignore_shadow = false); virtual ~gdcmDocument(void); void gdcmDocument::Parse7FE0 (void); // Entry int CheckIfEntryExistByNumber(guint16 Group, guint16 Elem ); // int ! public: virtual std::string GetEntryByName (TagName tagName); virtual std::string GetEntryVRByName (TagName tagName); virtual std::string GetEntryByNumber (guint16 group, guint16 element); virtual std::string GetEntryVRByNumber(guint16 group, guint16 element); virtual int GetEntryLengthByNumber(guint16 group, guint16 element); protected: virtual bool SetEntryByName (std::string content, std::string tagName); virtual bool SetEntryByNumber(std::string content, guint16 group, guint16 element); virtual bool SetEntryByNumber(void *content, int lgth, guint16 group, guint16 element); virtual bool SetEntryLengthByNumber(guint32 length, guint16 group, guint16 element); virtual size_t GetEntryOffsetByNumber (guint16 Group, guint16 Elem); virtual void *GetEntryVoidAreaByNumber(guint16 Group, guint16 Elem); virtual bool SetEntryVoidAreaByNumber(void *a, guint16 Group, guint16 Elem); virtual void UpdateShaEntries(); // Header entry gdcmDocEntry *GetDocEntryByNumber (guint16 group, guint16 element); gdcmDocEntry *GetDocEntryByName (std::string Name); gdcmValEntry *GetValEntryByNumber (guint16 group, guint16 element); gdcmBinEntry *GetBinEntryByNumber (guint16 group, guint16 element); void LoadDocEntrySafe(gdcmDocEntry *); private: // Read long ParseDES(gdcmDocEntrySet *set, long offset, long l_max,bool delim_mode); long ParseSQ(gdcmSeqEntry *seq, long offset, long l_max, bool delim_mode); void LoadDocEntry (gdcmDocEntry *); void FindDocEntryLength(gdcmDocEntry *); void FindDocEntryVR (gdcmDocEntry *); bool CheckDocEntryVR (gdcmDocEntry *, VRKey); std::string GetDocEntryValue (gdcmDocEntry *); std::string GetDocEntryUnvalue(gdcmDocEntry *); void SkipDocEntry (gdcmDocEntry *); void SkipToNextDocEntry (gdcmDocEntry *); void FixDocEntryFoundLength(gdcmDocEntry *, guint32); bool IsDocEntryAnInteger (gdcmDocEntry *); guint32 FindDocEntryLengthOB(); guint16 ReadInt16(); guint32 ReadInt32(); void SkipBytes(guint32); guint32 ReadTagLength(guint16, guint16); guint32 ReadItemTagLength(); guint32 ReadSequenceDelimiterTagLength(); void Initialise(); bool CheckSwap(); void SwitchSwapToBigEndian(); void SetMaxSizeLoadEntry(long); void SetMaxSizePrintEntry(long); // DocEntry related utilities gdcmDocEntry *ReadNextDocEntry (); guint32 GenerateFreeTagKeyInGroup(guint16 group); public: // Accessors: /// Accessor to \ref printLevel inline void SetPrintLevel(int level) { printLevel = level; } /// Accessor to \ref Filename inline std::string &GetFileName() { return Filename; } /// Accessor to \ref Filename inline void SetFileName(const char* fileName) { Filename = fileName; } /// Accessor to \ref gdcmElementSet::tagHT inline TagDocEntryHT &GetEntry() { return tagHT; }; /// 'Swap code' accessor (see \ref sw ) inline int GetSwapCode() { return sw; } /// File pointer inline FILE * GetFP() { return fp; } bool operator<(gdcmDocument &document); }; //----------------------------------------------------------------------------- #endif