// @(#)rootlibs:$Id TExPad.cc $
// Author: Koji Ebina 18/05/11

//_____________________________________________________________
/* Begin_Html
<center><h2>The extended TExPad class of TPad</h2></center>
<h4>Examples:</h4>
<pre>
{
  gSystem->Load("libExROOT.so");

  TCanvas *canvas = new TCanvas("canvas","canvas",100,100,600,600);
  TExPad *pad = new TExPad("pad","pad");
  pad->Draw();
  pad->SetupPadComb(TExPad::TWBN);

  pad->Focus(1);
  TH1F *h1 = new TH1F("h1","h1",100,0,100);
  h1->Draw();

  pad->Focus(2);
  TH1F *h2 = new TH1F("h2","h2",100,0,100);
  h2->Draw();
}
</pre>
End_Html */

#include "TPad.h"
#include "TObjArray.h"

//_____________________________________________________________
// A description of the class starts with the line above, and
// will take place here !
//
class TExPad : public TPad {
protected:
  TObjArray* padArray;

public:
/*
  constractor
 */
  TExPad(const char* name, const char* title,
         Double_t xlow = 0.0, Double_t ylow = 0.0, Double_t xup = 1.0, Double_t yup = 1.0,
         Color_t color = -1, Short_t bordersize = -1, Short_t bordermode = -2) : 
         TPad(name,title,xlow,ylow,xup,yup,color,bordersize,bordermode), padArray(new TObjArray()) {}
/*
  destractor
 */
  virtual  ~TExPad() {}
/*
  Add subpad by your own hand.
 */
  void   AddPad(Float_t xlow, Float_t ylow, Float_t xup, Float_t yup);
/*
  Get the number of added subpads.
 */
  Int_t  NPad() {return padArray->GetEntriesFast();}

/*
  Move subpad by subpadnumber.   
 */
  void   Focus(Int_t subpadnumber=0);

/*
  Enum for Predefined Pad Arrangement
 */ 
  enum {
    T1B2, // X
    T2B1,
    TNBW,
    TWBN,
  };

/*
 Set the predefined pad arrangment by enum.
 */
  void SetupPadComb(Int_t padcomb);

  ClassDef(TExPad,0)
};