#include <iostream>
using namespace std;

#include "TFile.h"
#include "TGraph.h"
#include "TKey.h"
#include "TCollection.h"
#include "TH2F.h"
#include "TCanvas.h"
#include "TPad.h"
#include "TROOT.h"
#include "TDirectory.h"

TCanvas *can = new TCanvas("listdraw","TListDraw");
TList *ffitlines = new TList();

void listdraw()
{
	TFile *rf = new TFile("Fit_t344.root");
	TH2F *h = (TH2F*)rf->Get("h_t344");
	h->DrawCopy("colz");
	int i = 0;
	TIter next(rf->GetListOfKeys());
	TKey *key;
	while(key = (TKey *)next())
	{
		const char *name = key->GetClassName();
		const char *titl = key->GetTitle();
		if( strcmp("TGraph", name)==0 )
		{
			i += 1;
			//TGraph *pl = (TGraph*)rf->Get(key->GetName());
			TGraph *tpl = (TGraph*)rf->Get(key->GetName());
			TGraph *pl = new TGraph(*tpl);
			pl->SetName(key->GetName());
			pl->SetTitle(key->GetTitle());
			pl->SetLineStyle(1);
			pl->SetLineColor(2);
			pl->SetLineWidth(2);
			//pl->Draw("l");
			if(i==1) ffitlines->Clear();
			ffitlines->Add(pl);
		}
		else
		{
			continue;
		}
	}
	rf->Close();
	if( ffitlines->GetSize()>0 && (h!=NULL) )
	{
		ffitlines->ls();
		ffitlines->Draw("l");
		cout<< endl << "Primitives list of gPad:" << endl;
		gPad->GetListOfPrimitives()->ls();
		can->Update();
	}
}