DicomHandler.hh

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//
// ********************************************************************
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// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
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// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
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// * any work based  on the software)  you  agree  to acknowledge its *
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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 DicomPhantomZSliceHeader;
class DicomPhantomZSliceMerged;

class DicomHandler
{
public:
    
    ~DicomHandler();
    
    // static accessor
    static DicomHandler* Instance();
    
    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();
    
    static G4String GetDicomDataPath();
    static G4String GetDicomDataFile();

private:
    DicomHandler();
    
    template <class Type> void GetValue(char *, Type &);
    
private:
    static DicomHandler* fInstance;
 
    const G4int DATABUFFSIZE;
    const G4int LINEBUFFSIZE;
    const G4int FILENAMESIZE;
    
    void ReadCalibration();
    void GetInformation(G4int &, char *);
    G4float Pixel2density(G4int pixel);
    void ReadMaterialIndices( std::ifstream& finData);
    unsigned int GetMaterialIndex( G4float density );
    void StoreData(std::ofstream& foutG4DCM);
    void StoreData(DicomPhantomZSliceHeader* dcmPZSH);
    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;
    
    G4int fNbrequali;
    G4double* fValueDensity;
    G4double* fValueCT;
    G4bool fReadCalibration;
    DicomPhantomZSliceMerged* fMergedSlices;

    G4String fDriverFile;
    G4String fCt2DensityFile;

};
#endif