X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmDocument.h;h=45388b1aeb1a6e75b3ffc605e7025a067a518d78;hb=643a8d9fe7dc8470db4cf7a6de639beebb339076;hp=db1fe1848473d04b4225ac0d7557e8142a71f7cb;hpb=ba7aa1959cabf4ed402177c080723bc284983140;p=gdcm.git diff --git a/src/gdcmDocument.h b/src/gdcmDocument.h index db1fe184..45388b1a 100644 --- a/src/gdcmDocument.h +++ b/src/gdcmDocument.h @@ -3,12 +3,12 @@ Program: gdcm Module: $RCSfile: gdcmDocument.h,v $ Language: C++ - Date: $Date: 2004/07/16 15:18:05 $ - Version: $Revision: 1.22 $ + Date: $Date: 2005/01/26 17:17:31 $ + Version: $Revision: 1.102 $ 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. + http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR @@ -19,245 +19,192 @@ #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 "gdcmDict.h" #include "gdcmElementSet.h" +#include "gdcmException.h" #include #include +#include + +namespace gdcm +{ +class ValEntry; +class BinEntry; +class SeqEntry; +class Dict; //----------------------------------------------------------------------------- /** - * \brief Derived by both gdcmHeader and gdcmDicomDir + * \brief Derived by both gdcm::File and gdcm::DicomDir */ -class GDCM_EXPORT gdcmDocument : public gdcmElementSet +class GDCM_EXPORT Document : public ElementSet { -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 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; +public: +// Informations contained in the gdcm::Document + virtual bool IsReadable(); + FileType GetFileType(); - /// Will be set 1 if user asks to 'go inside' the 'sequences' (VR = "SQ") - int enableSequences; + std::string GetTransferSyntax(); - /// \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 +// Dictionaries 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(const std::string & 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(); + Dict* GetPubDict(); + Dict* GetShaDict(); + bool SetShaDict(Dict* dict); + bool SetShaDict(DictKey const &dictName); + +// Swap code + /// 'Swap code' accessor (see \ref SwapCode ) + int GetSwapCode() { return SwapCode; } + // System access (meaning endian related !?) + uint16_t SwapShort(uint16_t); // needed by Document + uint32_t SwapLong(uint32_t); // needed by Document + uint16_t UnswapShort(uint16_t); // needed by Document + uint32_t UnswapLong(uint32_t); // needed by Document + +// Ordering of Documents + bool operator<(Document &document); - FileType GetFileType(); +public: +// File I/O + /// Accessor to \ref Filename + const std::string &GetFileName() const { return Filename; } + /// Accessor to \ref Filename + void SetFileName(std::string const &fileName) { Filename = fileName; } - FILE* OpenFile(bool exception_on_error = false) throw(gdcmFileError); + std::ifstream *OpenFile(); bool CloseFile(); + void WriteContent( std::ofstream *fp, FileType type ); - void Write(FILE* fp, FileType type); +// Content entries - gdcmValEntry* ReplaceOrCreateByNumber(std::string value, - uint16_t group, uint16_t elem); + virtual void LoadEntryBinArea(uint16_t group, uint16_t elem); + virtual void LoadEntryBinArea(BinEntry *entry); - 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 Element); - virtual void* LoadEntryVoidArea(gdcmBinEntry*); - - // 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 + void LoadDocEntrySafe(DocEntry *entry); + + /// Return the Transfer Syntax as a string + std::string GetTransferSyntaxName(); + + bool IsDicomV3(); + bool IsPapyrus(); protected: +// Methods // 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(); + // to instanciate from this class Document (only gdcm::File and + // gdcm::DicomDir are meaningfull). + Document(); + Document( std::string const &filename ); + virtual ~Document(); - void gdcmDocument::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 element); - virtual std::string GetEntryVRByNumber(uint16_t group, uint16_t element); - virtual int GetEntryLengthByNumber(uint16_t group, uint16_t element); -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); + uint16_t ReadInt16() throw ( FormatError ); + uint32_t ReadInt32() throw ( FormatError ); + void SkipBytes(uint32_t); - 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); + int ComputeGroup0002Length( FileType filetype ); - virtual void UpdateShaEntries(); +// Variables + /// Refering underlying filename. + std::string Filename; - // Header entry - gdcmDocEntry* GetDocEntryByNumber(uint16_t group, uint16_t element); - gdcmDocEntry* GetDocEntryByName (std::string Name); + /// \brief Swap code gives an information on the byte order of a + /// supposed to be an int32, as it's read on disc + /// (depending on the image Transfer Syntax *and* on the processor endianess) + /// as opposed as it should in memory to be dealt as an int32. + /// For instance : + /// - a 'Little Endian' image, read with a little endian processor + /// will have a SwapCode= 1234 (the order is OK; nothing to do) + /// - a 'Little Endian' image, read with a big endian procesor + /// will have a SwapCode= 4321 (the order is wrong; int32 an int16 must be + /// swapped) + /// note : values 2143, 4321, 3412 remain for the ACR-NEMA time, and + /// the well known 'Bad Big Endian' and 'Bad Little Endian' codes + int SwapCode; + + ///\brief whether we already parsed group 0002 (Meta Elements) + bool Group0002Parsed; + + ///\brief whether file has a DCM Preamble + bool HasDCMPreamble; + + /// File Pointer, opened during Document parsing. + std::ifstream *Fp; - gdcmValEntry* GetValEntryByNumber(uint16_t group, uint16_t element); - gdcmBinEntry* GetBinEntryByNumber(uint16_t group, uint16_t element); + /// ACR, ACR_LIBIDO, ExplicitVR, ImplicitVR, Unknown + FileType Filetype; - void LoadDocEntrySafe(gdcmDocEntry*); + /// 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. + static const unsigned int MAX_SIZE_PRINT_ELEMENT_VALUE; private: +// Methods // 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); + void ParseDES(DocEntrySet *set,long offset, long l_max, bool delim_mode); + void ParseSQ (SeqEntry *seq, long offset, long l_max, bool delim_mode); - std::string GetDocEntryValue (gdcmDocEntry *); - std::string GetDocEntryUnvalue(gdcmDocEntry *); + void LoadDocEntry (DocEntry *e); + void FindDocEntryLength (DocEntry *e) throw ( FormatError ); + uint32_t FindDocEntryLengthOBOrOW() throw( FormatUnexpected ); + std::string FindDocEntryVR(); + bool CheckDocEntryVR (VRKey k); - void SkipDocEntry (gdcmDocEntry *); - void SkipToNextDocEntry (gdcmDocEntry *); + std::string GetDocEntryValue (DocEntry *entry); + std::string GetDocEntryUnvalue(DocEntry *entry); - void FixDocEntryFoundLength(gdcmDocEntry *, uint32_t); - bool IsDocEntryAnInteger (gdcmDocEntry *); - uint32_t FindDocEntryLengthOB(); + void SkipDocEntry (DocEntry *entry); + void SkipToNextDocEntry (DocEntry *entry); - uint16_t ReadInt16(); - uint32_t ReadInt32(); - void SkipBytes(uint32_t); - bool ReadTag(uint16_t, uint16_t); - uint32_t ReadTagLength(uint16_t, uint16_t); + void FixDocEntryFoundLength(DocEntry *entry,uint32_t l); + bool IsDocEntryAnInteger (DocEntry *entry); - void Initialise(); + void Initialize(); bool CheckSwap(); - void SwitchSwapToBigEndian(); + void SwitchByteSwapCode(); 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; } + DocEntry *ReadNextDocEntry(); - /// Accessor to \ref Filename - void SetFileName(std::string const & fileName) { Filename = fileName; } + void HandleBrokenEndian (uint16_t &group, uint16_t &elem); + void HandleOutOfGroup0002(uint16_t &group, uint16_t &elem); - /// Accessor to \ref gdcmElementSet::tagHT - TagDocEntryHT &GetEntry() { return tagHT; }; +// Variables + /// Public dictionary used to parse this header + Dict *RefPubDict; + /// \brief Optional "shadow dictionary" (private elements) used to parse + /// this header + Dict *RefShaDict; - /// 'Swap code' accessor (see \ref sw ) - int GetSwapCode() { return sw; } + /// \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; - /// File pointer - FILE * GetFP() { return fp; } - - bool operator<(gdcmDocument &document); + /// \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; +// uint32_t GenerateFreeTagKeyInGroup(uint16_t group); +// void BuildFlatHashTableRecurse( TagDocEntryHT &builtHT, +// DocEntrySet *set ); }; +} // end namespace gdcm + //----------------------------------------------------------------------------- #endif