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#ifndef PETProjDataMgr_h

#define PETProjDataMgr_h

/*---------------------------------------------------------------------------  

ClassName:   PETProjDataMgr

Author:      M. Canadas, P. Arce

Changes:     01/11: creation

-------------------------------------------------------------------------

// Description

    PET output (List-mode X Y Z) into projection data (sinograms).

    Output data: Sinograms for PET image reconstruction. Interfile format, STIR compatible (.hs/.s),

                 STIR Software for Tomographic Image Reconstruction: http://stir.sourceforge.net/main.htm    

-----------------------------------------------------------------------*/

#include <iostream>

#include "TVector3.h"

class TH2F;

//#include <math.h>

#include <map>

#include <vector>

#include <set>

#include <string>

class TH1;

class TH2F;

class TH3F;

class TRandom3;

 typedef unsigned short SINO_TYPE;  //!!NOTE:  Check "Write_sino3D" (.hv file) if SINO_TYPE changes !!

//------------------------------------------------------------------------

class PETProjDataMgr

{

 private:

  PETProjDataMgr();

  int m_Debug;

 public:

  ~PETProjDataMgr();

  //! Get the only instance 

  static PETProjDataMgr* GetInstance();

  void AddEvent(const TVector3& pos1, const TVector3& pos2);

  //void ReadFile();

  //PETOutput ReadEvent( G4bool& bEof );

  void SetProjection(int axialplane, TH2F*h);

  void WriteInterfile();

  void SetNPlanes(int n){m_NOfPlanes=n;};

  void SetNBin(int n){m_NOfBins=n;};

  void SetNAng(int n){m_NOfAngles=n;};

  void SetDebug(int n){m_Debug=n;};

  void SetNumberOfChannels(int n){m_nch=n;};

  void SetFilename( const char *fname){ m_Filename= TString(fname); };

  void SetRingDiameter( double x){ m_RingDiameter = x; };

  void SetAxialDistance( double x){ m_AxialDistance = x; };

  TH2F *Phantom(int kaj);

  int FwdProject(TH2F *img, TH2F *h=NULL);

  int FwdProject(TH3F *img, TH3F *h=NULL);

  int FwdProject(double x,double y, double z, int nmax, TH1 *h=NULL);

  TVector3 Hits2Digits(const TVector3 &r);

private:

  static PETProjDataMgr* m_Instance;

  double m_AxialDistance;

  double m_RingDiameter;

  int m_NOfPlanes;

  int m_NOfBins;

  int m_NOfAngles;

  int m_MaxRingDifference;

  int m_OutFormat;

  int m_nch;

  int m_TotalAxialPlanes;

  TString m_Filename;

  TRandom3 * m_rnd;

  //G4bool bDumpCout;

  SINO_TYPE ***m_projections;

  SINO_TYPE *m_Buffer;

  unsigned long int m_TotalCoincidences;

  unsigned long int m_TotalProjectionCoincidences;

  FILE *fp;

};

#endif