Program: gdcm
Module: $RCSfile: gdcmDocument.h,v $
Language: C++
- Date: $Date: 2004/12/03 20:16:58 $
- Version: $Revision: 1.67 $
+ 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
class RLEFramesInfo;
class JPEGFragmentsInfo;
-enum TransferSyntaxType {
- ImplicitVRLittleEndian = 0,
- ImplicitVRLittleEndianDLXGE,
- ExplicitVRLittleEndian,
- DeflatedExplicitVRLittleEndian,
- ExplicitVRBigEndian,
- JPEGBaselineProcess1,
- JPEGExtendedProcess2_4,
- JPEGExtendedProcess3_5,
- JPEGSpectralSelectionProcess6_8,
- JPEGFullProgressionProcess10_12,
- JPEGLosslessProcess14,
- JPEGLosslessProcess14_1,
- JPEG2000Lossless,
- JPEG2000,
- RLELossless,
- UnknownTS
-};
-
//-----------------------------------------------------------------------------
/**
* \brief Derived by both Header and DicomDir
*/
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 WriteContent( std::ofstream* fp, FileType type );
+// Content entries
- ValEntry* ReplaceOrCreateByNumber(std::string const & value,
- uint16_t group, uint16_t elem,
- TagName const & vr = "unkn");
-
- BinEntry* ReplaceOrCreateByNumber(uint8_t* binArea, int lgth,
- uint16_t group, uint16_t elem,
- TagName 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);
- SeqEntry* ReplaceOrCreateByNumber(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);
- bool ReplaceIfExistByNumber ( std::string const & value,
- 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);
+
+ bool ReplaceIfExist(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(BinEntry *entry);
+
+ void LoadDocEntrySafe(DocEntry *entry);
+ /*TagDocEntryHT *BuildFlatHashTable();*/
- static std::string GetTransferSyntaxValue(TransferSyntaxType type);
+ /// 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,
- TagName 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);
- // FIXME
- // Verify the usefull of this method... otherwise remove it
- // It's body is commented in the .xx
- //virtual bool SetEntryLengthByNumber(uint32_t length,
- // uint16_t group, uint16_t element);
-
- // FIXME
- // Verify the usefull of this method... otherwise remove it
- // It's body is commented in the .xx
- // virtual size_t GetEntryOffsetByNumber(uint16_t group, uint16_t elem);
- virtual void* GetEntryBinAreaByNumber(uint16_t group, uint16_t elem);
- // FIXME
- // Verify the usefull of this method... otherwise remove it
- // It's body is commented in the .xx
- //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 (TagName 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 );
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 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 HandleBrokenEndian(uint16_t &group, uint16_t &elem);
+ void HandleOutOfGroup0002(uint16_t &group, uint16_t &elem);
- /// Accessor to \ref Filename
- void SetFileName(std::string const & fileName) { Filename = fileName; }
+// 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 SwapCode )
- int GetSwapCode() { return SwapCode; }
+ /// \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;
- bool operator<(Document &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;
+private:
+ friend class FileHelper;
};
} // end namespace gdcm
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff