X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmDocument.h;h=a1c445f729b2b9181e24eeffe3747cd556b13b2e;hb=d00078b5e19310b379c8339fa8fe38362e8ca392;hp=0324a946a87a7fe3807e9c1c8c110218cdb7fe12;hpb=eae9a01c2edd9f615a78dc64a8e7731d09e815a1;p=gdcm.git diff --git a/src/gdcmDocument.h b/src/gdcmDocument.h index 0324a946..a1c445f7 100644 --- a/src/gdcmDocument.h +++ b/src/gdcmDocument.h @@ -3,8 +3,8 @@ Program: gdcm Module: $RCSfile: gdcmDocument.h,v $ Language: C++ - Date: $Date: 2004/11/12 21:33:46 $ - Version: $Revision: 1.57 $ + Date: $Date: 2005/01/20 16:17:00 $ + Version: $Revision: 1.95 $ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de l'Image). All rights reserved. See Doc/License.txt or @@ -19,45 +19,22 @@ #ifndef GDCMDOCUMENT_H #define GDCMDOCUMENT_H -#include "gdcmCommon.h" #include "gdcmVR.h" -#include "gdcmTS.h" -#include "gdcmException.h" -#include "gdcmDictSet.h" -#include "gdcmDocEntry.h" -#include "gdcmRLEFramesInfo.h" -#include "gdcmJPEGFragmentsInfo.h" -#include "gdcmDocEntrySet.h" +#include "gdcmDict.h" #include "gdcmElementSet.h" -class ValEntry; -class BinEntry; -class SeqEntry; - #include #include #include namespace gdcm { - -enum TransferSyntaxType { - ImplicitVRLittleEndian = 0, - ExplicitVRLittleEndian, - DeflatedExplicitVRLittleEndian, - ExplicitVRBigEndian, - JPEGBaselineProcess1, - JPEGExtendedProcess2_4, - JPEGExtendedProcess3_5, - JPEGSpectralSelectionProcess6_8, - JPEGFullProgressionProcess10_12, - JPEGLosslessProcess14, - JPEGLosslessProcess14_1, - JPEG2000Lossless, - JPEG2000, - RLELossless, - UnknownTS -}; +class ValEntry; +class BinEntry; +class SeqEntry; +class Dict; +class RLEFramesInfo; +class JPEGFragmentsInfo; //----------------------------------------------------------------------------- /** @@ -65,182 +42,175 @@ enum TransferSyntaxType { */ class GDCM_EXPORT Document : public ElementSet { -friend class File; -private: - /// Public dictionary used to parse this header - Dict* RefPubDict; - - /// \brief Optional "shadow dictionary" (private elements) used to parse - /// this header - Dict* RefShaDict; - - /// \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. - std::ifstream* 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 - /// class DocEntry . See also - /// method ref Document::SetMaxSizePrintEntry() - static const unsigned int MAX_SIZE_PRINT_ELEMENT_VALUE; - - /// Store the RLE frames info obtained during parsing of pixels. - RLEFramesInfo* RLEInfo; +public: +// Informations contained in the parser + virtual bool IsReadable(); + FileType GetFileType(); - /// Store the JPEG fragments info obtained during parsing of pixels. - JPEGFragmentsInfo* JPEGInfo; + std::string GetTransferSyntax(); + + RLEFramesInfo *GetRLEInfo() { return RLEInfo; } + JPEGFragmentsInfo *GetJPEGInfo() { return JPEGInfo; } - /// \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 Dict* GetPubDict(); Dict* GetShaDict(); bool SetShaDict(Dict* dict); - bool SetShaDict(DictKey const & dictName); + bool SetShaDict(DictKey const &dictName); -// Informations contained in the parser - virtual bool IsReadable(); - TransferSyntaxType GetTransferSyntax(); - bool IsJPEGLossless(); - bool IsJPEG2000(); - bool IsJPEG(); - bool IsEncapsulate(); - bool IsDicomV3(); +// 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; } - std::ifstream * OpenFile(); + std::ifstream *OpenFile(); bool CloseFile(); + void WriteContent( std::ofstream *fp, FileType type ); - void Write( std::ofstream* fp, FileType type ); +// Content entries - ValEntry* ReplaceOrCreateByNumber(std::string const & value, - uint16_t group, uint16_t elem, - std::string const & vr = "unkn"); - - BinEntry* ReplaceOrCreateByNumber(uint8_t* binArea, int lgth, - uint16_t group, uint16_t elem, - std::string const & vr = "unkn"); +// Oops ! Python is gonna cry : +// 4 methods with same name and different parameters ... +// Only C++ is aware! + + virtual bool SetEntry(std::string const &content, + uint16_t group, uint16_t elem); + virtual bool SetEntry(uint8_t *content, int lgth, + uint16_t group, uint16_t elem); + virtual bool SetEntry(std::string const &content, ValEntry *entry); + virtual bool SetEntry(uint8_t *content, int lgth, BinEntry *entry); + + virtual void *GetEntryBinArea(uint16_t group, uint16_t elem); + + virtual std::string GetEntry (uint16_t group, uint16_t elem); + virtual std::string GetEntryVR(uint16_t group, uint16_t elem); + virtual int GetEntryLength(uint16_t group, uint16_t elem); + + ValEntry *ReplaceOrCreate(std::string const &value, + uint16_t group, uint16_t elem, + TagName const &vr = GDCM_UNKNOWN); + BinEntry *ReplaceOrCreate(uint8_t* binArea, int lgth, + uint16_t group, uint16_t elem, + TagName const &vr = GDCM_UNKNOWN); + SeqEntry *ReplaceOrCreate(uint16_t group, uint16_t elem); - SeqEntry* ReplaceOrCreateByNumber(uint16_t group, uint16_t elem); + bool ReplaceIfExist(std::string const &value, + uint16_t group, uint16_t elem ); - bool ReplaceIfExistByNumber ( std::string const & value, - uint16_t group, uint16_t elem ); + bool CheckIfEntryExist(uint16_t group, uint16_t elem ); - virtual void* LoadEntryBinArea(uint16_t group, uint16_t elem); - virtual void* LoadEntryBinArea(BinEntry* entry); - - // System access (meaning endian related !?) - uint16_t SwapShort(uint16_t); // needed by File - uint32_t SwapLong(uint32_t); // needed by File - uint16_t UnswapShort(uint16_t); // needed by File - uint32_t UnswapLong(uint32_t); // needed by File + virtual void LoadEntryBinArea(uint16_t group, uint16_t elem); + virtual void LoadEntryBinArea(BinEntry *entry); + + void LoadDocEntrySafe(DocEntry *entry); + /*TagDocEntryHT *BuildFlatHashTable();*/ + + /// Return the Transfer Syntax as a string + std::string GetTransferSyntaxName(); + + bool IsDicomV3(); protected: +// Methods // Constructor and destructor are protected to forbid end user // to instanciate from this class Document (only Header and // DicomDir are meaningfull). Document(); - Document( std::string const & filename ); + Document( std::string const &filename ); virtual ~Document(); void ReadAndSkipEncapsulatedBasicOffsetTable(); void ComputeRLEInfo(); void ComputeJPEGFragmentInfo(); // Entry - bool CheckIfEntryExistByNumber(uint16_t group, uint16_t elem ); -public: - virtual std::string GetEntryByName (TagName const & tagName); - virtual std::string GetEntryVRByName (TagName const & 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 const & content, - std::string const & tagName); - virtual bool SetEntryByNumber(std::string const & content, - uint16_t group, uint16_t element); - virtual bool SetEntryByNumber(uint8_t* 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* GetEntryBinAreaByNumber(uint16_t group, uint16_t elem); - virtual bool SetEntryBinAreaByNumber(uint8_t* a, uint16_t group, - uint16_t elem); - - virtual void UpdateShaEntries(); - - // Header entry - DocEntry* GetDocEntryByNumber(uint16_t group, uint16_t element); - DocEntry* GetDocEntryByName (std::string const & tagName); - - ValEntry* GetValEntryByNumber(uint16_t group, uint16_t element); - //BinEntry* GetBinEntryByNumber(uint16_t group, uint16_t element); - RLEFramesInfo* GetRLEInfo() { return RLEInfo; } - JPEGFragmentsInfo* GetJPEGInfo() { return JPEGInfo; } - - void LoadDocEntrySafe(DocEntry* entry); - TagDocEntryHT* BuildFlatHashTable(); + + int ComputeGroup0002Length( FileType filetype ); + +// Variables + /// Refering underlying filename. + std::string Filename; + + /// \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 + bool Group0002Parsed; + + ///\brief whether file has a DCM Preamble + bool HasDCMPreamble; + + /// File Pointer, opened during Header parsing. + std::ifstream *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. + static const unsigned int MAX_SIZE_PRINT_ELEMENT_VALUE; + + /// Store the RLE frames info obtained during parsing of pixels. + RLEFramesInfo *RLEInfo; + + /// Store the JPEG fragments info obtained during parsing of pixels. + JPEGFragmentsInfo *JPEGInfo; private: +// Methods // Read void ParseDES(DocEntrySet *set,long offset, long l_max, bool delim_mode); void ParseSQ (SeqEntry *seq, long offset, long l_max, bool delim_mode); - void LoadDocEntry (DocEntry *); - void FindDocEntryLength(DocEntry *) throw ( FormatError ); - void FindDocEntryVR (DocEntry *); - bool CheckDocEntryVR (DocEntry *, VRKey); + void LoadDocEntry (DocEntry *e); + void FindDocEntryLength (DocEntry *e) throw ( FormatError ); + uint32_t FindDocEntryLengthOBOrOW() throw( FormatUnexpected ); + std::string FindDocEntryVR(); + bool CheckDocEntryVR (VRKey k); - std::string GetDocEntryValue (DocEntry *); - std::string GetDocEntryUnvalue(DocEntry *); + std::string GetDocEntryValue (DocEntry *entry); + std::string GetDocEntryUnvalue(DocEntry *entry); - void SkipDocEntry (DocEntry *); - void SkipToNextDocEntry (DocEntry *); - void FixDocEntryFoundLength(DocEntry *, uint32_t); - bool IsDocEntryAnInteger (DocEntry *); + void SkipDocEntry (DocEntry *entry); + void SkipToNextDocEntry (DocEntry *entry); - uint32_t FindDocEntryLengthOB() throw( FormatUnexpected ); + void FixDocEntryFoundLength(DocEntry *entry,uint32_t l); + bool IsDocEntryAnInteger (DocEntry *entry); uint16_t ReadInt16() throw ( FormatError ); uint32_t ReadInt32() throw ( FormatError ); @@ -248,39 +218,43 @@ private: bool ReadTag(uint16_t, uint16_t); uint32_t ReadTagLength(uint16_t, uint16_t); - void Initialise(); + void Initialize(); bool CheckSwap(); - void SwitchSwapToBigEndian(); + void SwitchByteSwapCode(); void SetMaxSizeLoadEntry(long); void SetMaxSizePrintEntry(long); // DocEntry related utilities - DocEntry* ReadNextDocEntry(); + DocEntry *ReadNextDocEntry(); uint32_t GenerateFreeTagKeyInGroup(uint16_t group); - void BuildFlatHashTableRecurse( TagDocEntryHT& builtHT, - DocEntrySet* set ); - - void HandleBrokenEndian(uint16_t group, uint16_t elem); -public: -// Accessors: - /// Accessor to \ref PrintLevel - void SetPrintLevel(int level) { PrintLevel = level; } - - /// Accessor to \ref Filename - const std::string &GetFileName() const { return Filename; } +/* void BuildFlatHashTableRecurse( TagDocEntryHT &builtHT, + DocEntrySet* set );*/ - /// 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); - /// 'Swap code' accessor (see \ref SwapCode ) - int GetSwapCode() { return SwapCode; } +// Variables + /// Public dictionary used to parse this header + Dict *RefPubDict; - /// File pointer - std::ifstream * GetFP() { return Fp; } + /// \brief Optional "shadow dictionary" (private elements) used to parse + /// this header + Dict *RefShaDict; - bool operator<(Document &document); + /// \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; +private: + friend class FileHelper; }; } // end namespace gdcm