PerEntryHistogram.hh

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) Royal Holloway, 
University of London 2001 - 2023.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PERENTRYHISTOGRAM_H
#define PERENTRYHISTOGRAM_H
#include "HistogramAccumulator.hh"
 
#include <string>
 
#include "Rtypes.h" // for classdef
 
class HistogramDef;
 
class TChain;
class TDirectory;
class TH1;
 
class PerEntryHistogram
{
public:
  PerEntryHistogram();
  
  PerEntryHistogram(const HistogramDef* definition,
                    TChain*             chain);
  virtual ~PerEntryHistogram();
 
  virtual void AccumulateCurrentEntry(long int entryNumber);
 
  virtual void Terminate();
 
  virtual void Write(TDirectory* dir = nullptr);
 
  inline void AddNEmptyEntries(unsigned long i){accumulator->AddNEmptyEntries(i);}
 
  double Integral() const;
 
protected:
  HistogramAccumulator* accumulator;
  TChain*       chain;        
  std::string   selection;    
  TH1*          temp;         
  TH1*          result;       
  std::string   command;      
  
  ClassDef(PerEntryHistogram, 1);
};
 
#endif