MultiHisto.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MultiHisto_h
#define MultiHisto_h
 
#include <TObject.h>
 
 
class string;
class TCanvas;
template < class T, class Allocator > class vector;
 
template <class ht>
class MultiHisto: public TObject{
 
public:
 
    MultiHisto(const ht &histo_model,const std::vector<std::string> &nameDiv,
            const std::vector<int> &nDiv,const std::vector<double *> &binsDiv);
 
    MultiHisto(const ht &histo_model,const std::vector<std::string> &nameDiv,
            const std::vector<std::vector <float> > &binsDiv);
 
    ~MultiHisto();
    
    // function to fill the histograms
    int Fill(double xvar, double yvar,const std::vector<double> &pars);
    int Fill(double xvar, double yvar,const std::vector<float> &pars);
    int FillFromFile(TDirectory *histodir = 0);
 
    // funtions to write histograms
    int Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const;
        int Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0);
    int WriteAndCount(int *nhistos, int *nbins) const;
 
    // functions to get informations
    virtual const char *GetTitle() const;
    virtual const char *GetName() const;
    unsigned int GetNhistos() const;
 
    // functions to draw histograms
    virtual void Draw(const Option_t* option = "");
    virtual void Draw(const int color,const Option_t* option = "");    
    virtual void Draw(std::vector <TCanvas*> &c1,const int color, const Option_t* option = "");    
 
    // functions to get global / detailed indexes
    int GetGlobalIndex(const std::vector<int> &indexes) const;
    int GetGlobalIndex(const std::vector<double> &pars) const;
    int GetGlobalIndex(const std::vector<float> &pars) const;
    std::vector<int> GetDivisionsIndexes(int globalindex) const;
    std::vector<int> GetDivisionsIndexes(const std::vector<double> &pars) const; 
    std::vector<int> GetDivisionsIndexes(const std::vector<float> &pars) const;  
    
    // functions to get histograms
    ht* GetHisto(int globalindex);
    ht* GetHisto(const std::vector<int> &indexes);
 
private:
    MultiHisto(){};
 
    // the histograms
    const ht *m_model;
    std::vector<ht*> m_myhistos;
    
    // std::vector of bins for divisions
    std::vector<int> m_div_Nbins;
    std::vector<std::string> m_div_names;
    std::vector<double*> m_div_bins;
 
    // functions to compose titles & names during allocation
    std::string ComposeName(const std::vector<int> &indexes);
    std::string ComposeTitle(const std::vector<int> &indexes);
    std::string TitleString(int idiv, int index);
    std::string NameString(int idiv, int index);
    
};
 
#endif