{
Double_t xAxis[9] = {2, 2.5, 3, 3.5, 4.25, 5, 6, 8.5, 12}; 
TH1 *hist = new TH1F("hist","title",8, xAxis);
hist->SetBinContent(1,3.0263);
hist->SetBinContent(2,2.5382);
hist->SetBinContent(3,2.06942);
hist->SetBinContent(4,1.972177);
hist->SetBinContent(5,1.540279);
hist->SetBinContent(6,1.230154);
hist->SetBinContent(7,0.932342);
hist->SetBinContent(8,0.771603);

TCanvas *c = new TCanvas("can", "can", 700, 400);
c->Divide(2,1);
c->cd(1);
hist->Draw();
TLegend *leg = new TLegend(0.5, 0.5, 0.99, 0.99);
for(Int_t i = 1; i <= hist->GetNbinsX(); ++i){
  Float_t x1 = hist->GetBinLowEdge(i);
  Float_t x2 = x1 + hist->GetBinWidth(i);
  Float_t y1 = hist->GetBinContent(i);
  Float_t y2 = y1 + .5;
  TBox *box = new TBox(x1, y1, x2, y2);
  box->SetLineColor(i);
  box->SetFillColor(i);
  Style_t style = 3454;
  box->SetFillStyle(style);
  box->Draw();
  leg->AddEntry(box, Form("box %d, style %d", i, style), "lf");  
}
leg->Draw();
c->cd(2);
hist->Draw();
leg = new TLegend(0.5, 0.5, 0.99, 0.99);
for(Int_t i = 1; i <= hist->GetNbinsX(); ++i){
  Float_t x1 = hist->GetBinLowEdge(i);
  Float_t x2 = x1 + hist->GetBinWidth(i);
  Float_t y1 = hist->GetBinContent(i);
  Float_t y2 = y1 + .5;
  TBox *box = new TBox(x1, y1, x2, y2);
  box->SetLineColor(i);
  box->SetFillColor(i);
  Style_t style = 3004;
  box->SetFillStyle(style);
  box->Draw();
  leg->AddEntry(box, Form("box %d, style %d", i, style), "lf");  
}
leg->Draw();
}