#ifndef STNTUPLE_TStnBeamPosBlock
#define STNTUPLE_TStnBeamPosBlock
//------------------------------------------------------------------------------
//  Definition of the STNTUPLE beam position block (BeamPos)
//  Author:    Christoph Paus (MIT)
//  Date:      Jul 03 2005
//------------------------------------------------------------------------------
#include "TObject.h"
#include "TString.h"
#include "TClonesArray.h"

#include "Stntuple/data/TStnBeamPos.hh"

class TStnBeamPosBlock: public TObject {

public:
  //----------------------------------------------------------------------------
  // Constructors and Destructor
  //----------------------------------------------------------------------------
  //TStnBeamPosBlock() {}
  TStnBeamPosBlock(const char* Name = "TStnBeamPosBlock");
  virtual ~TStnBeamPosBlock();

  //----------------------------------------------------------------------------
  // Accessors
  //----------------------------------------------------------------------------
  Int_t           NBeamPos     () { return fNBeamPos; }
  TClonesArray*   BeamPositions() { return fBeamPositions; }

  TStnBeamPos*    BeamPos      (int i) {
    return (TStnBeamPos*) fBeamPositions->UncheckedAt(i);
  }
  TStnBeamPos*    NewBeamPos   () {
    return new ((*fBeamPositions)[fNBeamPos++]) TStnBeamPos();
  }

  void            AverageBeamPos(TStnBeamPos* bp);

  //----------------------------------------------------------------------------
  // Overloaded methods of TObject
  //----------------------------------------------------------------------------
  void            Clear  (Option_t* opt = "");
  const char*     GetName() const { return fName.Data(); }
  void            Print  (Option_t* opt = "") const;
  void            SetNBeamPos(Int_t n) {fNBeamPos = n;}

protected:
  //----------------------------------------------------------------------------
  // Data members
  //----------------------------------------------------------------------------
  TString         fName;                  // name: COT vs SVX
  int             fNBeamPos;              // # of BeamPositons in the block
  TClonesArray*   fBeamPositions;         // list of BeamPosition data

  ClassDef(TStnBeamPosBlock,1)
};
#endif