DicomHandler.hh

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//
// ********************************************************************
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// * the Geant4 Collaboration.  It is provided  under  the terms  and *
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//
//
// The code was written by :
//      *Louis Archambault louis.archambault@phy.ulaval.ca,
//      *Luc Beaulieu beaulieu@phy.ulaval.ca
//      +Vincent Hubert-Tremblay at tigre.2@sympatico.ca
//
//
// *Centre Hospitalier Universitaire de Quebec (CHUQ),
// Hotel-Dieu de Quebec, departement de Radio-oncologie
// 11 cote du palais. Quebec, QC, Canada, G1R 2J6
// tel (418) 525-4444 #6720
// fax (418) 691 5268
//
// + Université Laval, Québec (QC) Canada
//*******************************************************//

#ifndef DicomHandler_h
#define DicomHandler_h 1

#include <cstdio>
#include <map>
#include <fstream>

#include "globals.hh"

//*******************************************************
//*******************************************************

class DicomHandler
{
public:

  DicomHandler();

    ~DicomHandler();

  G4int ReadFile(FILE *,char *);
  G4int ReadData(FILE *,char *); // note: always use readHeader 
                                    // before readData

  // use ImageMagick to display the image
  //G4int displayImage(char[500]);

    void CheckFileFormat();

private:
    template <class Type> void GetValue(char *, Type &);

private:

    const int DATABUFFSIZE;
    const int LINEBUFFSIZE;
    const int FILENAMESIZE;

    void GetInformation(G4int &, char *);
    G4float Pixel2density(G4int pixel);
    void ReadMaterialIndices( std::ifstream& finData);
    unsigned int GetMaterialIndex( G4float density );
    void StoreData(std::ofstream& foutG4DCM);
    G4int read_defined_nested(FILE *, G4int);
    void read_undefined_nested(FILE *);
    void read_undefined_item(FILE *);

    short fCompression;
    G4int fNFiles;
    short fRows;
    short fColumns;
    short fBitAllocated;
    G4int fMaxPixelValue, fMinPixelValue;
    
    G4double fPixelSpacingX, fPixelSpacingY;
    G4double fSliceThickness;
    G4double fSliceLocation;
    
    G4int fRescaleIntercept, fRescaleSlope;
    
    G4bool fLittleEndian, fImplicitEndian;
    short fPixelRepresentation;

    G4int** fTab;
    std::map<G4float,G4String> fMaterialIndices;
};
#endif