//******************************************************
//* Multi Root Files Handling Macro
//* Author:Mi Ran Kim
//* Sungkyunkwan University.South Korea
//*  25th.March.2020
//******************************************************** 
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <math.h>
#include "TCanvas.h"
#include "TColor.h"
#include "TFile.h"
#include "TFrame.h"
#include "TF1.h"
#include "TGraph.h"
#include "TGraphErrors.h"
#include "TGraphAsymmErrors.h"
#include "TH1.h"
#include "TH2.h"
#include "TLegend.h"
#include "TLegendEntry.h"
#include "TLine.h"
#include "TMath.h"
#include "TPaletteAxis.h"
#include "TROOT.h"
#include "TSpline.h"
#include "TStyle.h"
#include "TSystem.h"
#include "TTree.h"
#include <vector>
#include "TLorentzVector.h"
#include "stdlib.h"

using namespace std;


void Ratio_Tau0Tau2_ew()
{
  std::ofstream myfile;
  //gStyle->SetOptStat(000000000);//Not drawing status box
 // gStyle->SetTitleFontSize(.08);
  //gStyle->SetLabelSize(.05,"xy");
  //gstyle->SetCanvasColor(-1);
  //gStyle->SetPadColor(-1);
  //gStyle->SetFrameFillColor(-1);
  //gStyle->SetHistFillColor(-1);
 // gStyle->SetTitleFillColor(-1);
  //gStyle->SetFillColor(-1);
  //gStyle->SetFillStyle(4000);
 // gStyle->SetStatStyle(0);
 // gStyle->SetTitleStyle(0);
  //gStyle->SetCanvasBorderSize(0);
 // gStyle->SetFrameBorderSize(0);
  gStyle->SetLegendBorderSize(0);
 // gStyle->SetStatBorderSize(0);
  //gStyle->SetTitleBorderSize(0);
  gROOT->ForceStyle();

//------2018,2018,2018, with eventweight--------------

 TFile *f1=TFile::Open("./test/Ntuple2Dratio_ggH.root","READ");
 TFile *f2=TFile::Open("./test/Ntuple2Dratio_VBFH.root","READ");//Name change:VBH->VBFH
 TFile *f3=TFile::Open("./test/Ntuple2Dratio_ttH.root","READ");
 TFile *f4=TFile::Open("./test/Ntuple2Dratio_ZZTo4l.root","READ");

//-----Histo Fasullo------
//TH1F* Fasullo1 = new TH1F("Fasullo1","JetN0_#tau 0",100,70.,300.);
//TH1F* Fasullo2 = new TH1F("Fasullo2","JetN>=4",100,70.,300.);

 TH1F *h1=(TH1F*)f1->Get("Ratio_Tau0Tau2");
// TH1F *h1a=(TH1F*)f1->Get("Macro_ggH_tau0");
 TH1F *h2=(TH1F*)f2->Get("Ratio_Tau0Tau2");
// TH1F *h2a=(TH1F*)f2->Get("Macro_VBH_tau0");
 TH1F *h3=(TH1F*)f3->Get("Ratio_Tau0Tau2");
// TH1F *h3a=(TH1F*)f3->Get("Macro_ttH_tau0");
 TH1F *h4=(TH1F*)f4->Get("Ratio_Tau0Tau2");


 h1->SetLineColor(kRed);//Red
// h1a->SetLineColor(kRed-7);//Blue
 h2->SetLineColor(kGreen+2);//Fucsia//kOrange-3/kMagenta
// h2a->SetLineColor(kGreen-7);//kViolet+1//kPink+8/kViolet-5
 h3->SetLineColor(kBlue);//kMagenta/kPink-9
// h3a->SetLineColor(kBlue-7);//kGreen+1
 h4->SetLineColor(kViolet-5);//kMagenta/kPink-9
 
  h1->GetXaxis()->SetTitle("#tau 0/#tau 2");
  //h1->GetXaxis()->SetTitleSize(.15);//NOT WORKING
  h1->GetYaxis()->SetTitle("A.U");//A.U
  h1->GetYaxis()->SetTitleOffset(1.5);
  h2->GetXaxis()->SetTitle("#tau 0/#tau 2");
  h2->GetYaxis()->SetTitle("A.U");
  h2->GetYaxis()->SetTitleOffset(1.5);
  h3->GetXaxis()->SetTitle("#tau 0/#tau 2");
  h3->GetYaxis()->SetTitle("A.U");
  h3->GetYaxis()->SetTitleOffset(1.6);
  h4->GetXaxis()->SetTitle("#tau 0/#tau 2");
  h4->GetYaxis()->SetTitle("A.U");
  h4->GetYaxis()->SetTitleOffset(1.6);

 auto leg1=new TLegend(0.65,0.35,0.9,0.55);
 //auto leg1=new TLegend(0.65,0.65,0.9,0.85);
 leg1->AddEntry(h1,"ggH");
 leg1->AddEntry(h2,"VBFH");
 leg1->AddEntry(h3,"ttH");  
 leg1->AddEntry(h4,"ZZTo4l");  
//leg1->AddEntry(h1a,"Macro_ggH");

/*
 auto leg2=new TLegend(0.65,0.75,0.9,0.85);
 leg2->AddEntry(h2,"VBH");
 //leg2->AddEntry(h2a,"Macro_VBH");
 auto leg3=new TLegend(0.65,0.75,0.9,0.85);
 leg3->AddEntry(h3,"ttH"); 
 //leg3->AddEntry(h3a,"Macro_ttH");
*/

 Double_t w1=1000;//600X3
 Double_t hh1=1000;//
 
 auto c1=new TCanvas("c1","c1",w1,hh1);
 c1->SetWindowSize(w1+(w1-c1->GetWw()),hh1+(hh1-c1->GetWh()));
 c1->SetCanvasSize(w1,hh1);
 c1->Divide(2,2);


 //TCanvas *c1=new TCanvas();
 h1->SetLineWidth(2);
// h1a->SetLineWidth(2);
// h1a->SetLineStyle(2);
 h2->SetLineWidth(2);
// h2a->SetLineWidth(2);
// h2a->SetLineStyle(2);
 h3->SetLineWidth(2);
// h3a->SetLineWidth(2);
// h3a->SetLineStyle(2);
 h4->SetLineWidth(2);
 h4->SetLineStyle(2);

 //c1->Divide(2,2);
 c1->cd(1);
 //Fasullo1->Draw("same");
 h4->DrawNormalized("histo");//Jetti3
 //h4->Draw("histo");//Jetti3
 c1->cd(2);
 h1->DrawNormalized("histo");//Jetti3
 //h1->Draw("histo");//Jetti3
 c1->cd(3);
 h2->DrawNormalized("histo");//Jetti3
 //h2->Draw("histo");//Jetti3
 c1->cd(4);
 h3->DrawNormalized("histo");//Jetti3
// h3->Draw("histo");//Jetti3
//h1a->DrawNormalized("histo same");//Jetti3
 leg1->Draw("same");
/*
 c1->cd(2);
 h2->DrawNormalized("histo same");//Jetti3
// h2a->DrawNormalized("histo same");//Jetti3
 leg2->Draw("same");
 //h1->GetXaxis()->SetTitleSize(.15);
 
 c1->cd(3);
 h3->DrawNormalized("histo same");//Jetti3
// h3a->DrawNormalized("histo same");//Jetti3
 leg3->Draw("same");
*/
c1->SaveAs("/home/cms-skku/Desktop/Ratio_Tau0Tau2_Normalew.png");



} //end multiRoot function