/*========================================================================= Program: gdcm Module: $RCSfile: gdcmDocument.h,v $ Language: C++ Date: $Date: 2004/07/31 18:43:43 $ Version: $Revision: 1.26 $ 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 //----------------------------------------------------------------------------- /** * \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). uint32_t 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. uint32_t 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 SwapCode; /// 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(); gdcmDict *GetShaDict(); bool SetShaDict(gdcmDict *dict); bool SetShaDict(DictKey dictName); // Informations contained in the parser virtual bool IsReadable(); bool IsGivenTransferSyntax(std::string const & SyntaxToCheck); bool IsImplicitVRLittleEndianTransferSyntax(); bool IsExplicitVRLittleEndianTransferSyntax(); bool IsDeflatedExplicitVRLittleEndianTransferSyntax(); bool IsExplicitVRBigEndianTransferSyntax(); bool IsJPEGBaseLineProcess1TransferSyntax(); bool IsJPEGExtendedProcess2_4TransferSyntax(); bool IsJPEGExtendedProcess3_5TransferSyntax(); bool IsJPEGSpectralSelectionProcess6_8TransferSyntax(); bool IsRLELossLessTransferSyntax(); bool IsJPEGLossless(); bool IsJPEG2000(); bool IsDicomV3(); FileType GetFileType(); FILE* OpenFile(bool exception_on_error = false) throw(gdcmFileError); bool CloseFile(); void Write(FILE* fp, FileType type); gdcmValEntry* ReplaceOrCreateByNumber(std::string value, uint16_t group, uint16_t elem); gdcmBinEntry* ReplaceOrCreateByNumber(void *voidArea, int lgth, uint16_t group, uint16_t elem); bool ReplaceIfExistByNumber (const char* value, uint16_t group, uint16_t elem); virtual void* LoadEntryVoidArea(uint16_t group, uint16_t elem); virtual void* LoadEntryVoidArea(gdcmBinEntry* entry); // System access uint16_t SwapShort(uint16_t); // needed by gdcmFile uint32_t SwapLong(uint32_t); // needed by gdcmFile uint16_t UnswapShort(uint16_t); // needed by gdcmFile uint32_t UnswapLong(uint32_t); // 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 & filename, bool exception_on_error = false); virtual ~gdcmDocument(); void Parse7FE0 (); // Entry int CheckIfEntryExistByNumber(uint16_t group, uint16_t elem ); // int ! public: virtual std::string GetEntryByName (TagName tagName); virtual std::string GetEntryVRByName (TagName tagName); virtual std::string GetEntryByNumber (uint16_t group, uint16_t elem); virtual std::string GetEntryVRByNumber(uint16_t group, uint16_t elem); virtual int GetEntryLengthByNumber(uint16_t group, uint16_t elem); protected: virtual bool SetEntryByName (std::string content, std::string tagName); virtual bool SetEntryByNumber(std::string content, uint16_t group, uint16_t element); virtual bool SetEntryByNumber(void *content, int lgth, uint16_t group, uint16_t element); virtual bool SetEntryLengthByNumber(uint32_t length, uint16_t group, uint16_t element); virtual size_t GetEntryOffsetByNumber(uint16_t group, uint16_t elem); virtual void* GetEntryVoidAreaByNumber(uint16_t group, uint16_t elem); virtual bool SetEntryVoidAreaByNumber(void* a, uint16_t group, uint16_t elem); virtual void UpdateShaEntries(); // Header entry gdcmDocEntry* GetDocEntryByNumber(uint16_t group, uint16_t element); gdcmDocEntry* GetDocEntryByName (std::string const & tagName); gdcmValEntry* GetValEntryByNumber(uint16_t group, uint16_t element); gdcmBinEntry* GetBinEntryByNumber(uint16_t group, uint16_t element); void LoadDocEntrySafe(gdcmDocEntry* entry); 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 *, gdcmVRKey); std::string GetDocEntryValue (gdcmDocEntry *); std::string GetDocEntryUnvalue(gdcmDocEntry *); void SkipDocEntry (gdcmDocEntry *); void SkipToNextDocEntry (gdcmDocEntry *); void FixDocEntryFoundLength(gdcmDocEntry *, uint32_t); bool IsDocEntryAnInteger (gdcmDocEntry *); uint32_t FindDocEntryLengthOB(); uint16_t ReadInt16(); uint32_t ReadInt32(); void SkipBytes(uint32_t); bool ReadTag(uint16_t, uint16_t); uint32_t ReadTagLength(uint16_t, uint16_t); void Initialise(); bool CheckSwap(); void SwitchSwapToBigEndian(); void SetMaxSizeLoadEntry(long); void SetMaxSizePrintEntry(long); // DocEntry related utilities gdcmDocEntry* ReadNextDocEntry(); uint32_t GenerateFreeTagKeyInGroup(uint16_t group); public: // Accessors: /// Accessor to \ref printLevel void SetPrintLevel(int level) { PrintLevel = level; } /// Accessor to \ref Filename const std::string &GetFileName() { return Filename; } /// Accessor to \ref Filename void SetFileName(std::string const & fileName) { Filename = fileName; } /// 'Swap code' accessor (see \ref sw ) int GetSwapCode() { return SwapCode; } /// File pointer FILE * GetFP() { return Fp; } bool operator<(gdcmDocument &document); }; //----------------------------------------------------------------------------- #endif