#ifndef HEPTH2F_H
#define HEPTH2F_H


// ----------------------------------------------------------------------
//
// HepTH2F.cc - definition of class HepTH2F
//
// Intended to gain access to the protected members of the Root TH2F class.
//
// This class is used to import an existing histogram object from possibly
// some other manager and manufacture a temporary TH2F object with all the
// same characteristics as the original. That way, we can use the existing
// Root methods to implement the increment operators.
//
// Because of the eccentricities of the various managers, we do NOT manage
// to get some of the statistical sums quite right - in particular the
// sum of the squared weights - so the overall statistics should not be taken
// too seriously.
//
//   25-Feb-1999  J. Marraffino   Initial definition
//   21-Feb-2000  Walter Brown    Improved C++ standard compliance
//
// ----------------------------------------------------------------------

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

#ifndef ZMENVIRONMENT_H
  #include "ZMutility/ZMenvironment.h"
#endif

#include <TH1.h>
#include <TH2.h>
#include "HepTuple/HepRootHist2D.h"


ZM_BEGIN_NAMESPACE( zmht )	/*  namespace zmht  {  */

class TH1;
class TH2;
class TH2F;
class HepRawHist;

class HepTH2F  :   public TH2F {

public:

  HepTH2F( const HepHist2D & p );	// constructor for an existing HepHist2D

  virtual ~HepTH2F();			// destructor

  void finishStat2D( HepRootHist2D * h );

private:

  // forbidden operations, hence private
  HepTH2F( const HepTH2F & );              // copy constructor
  HepTH2F & operator=( const HepTH2F & );  // assignment

};  // HepTH2F

ZM_END_NAMESPACE( zmht )	/*  }  // namespace zmht  */

#endif  // HEPTH2F_H