#ifndef ROOT_TVirtualHistPainter
#define ROOT_TVirtualHistPainter

//+SEQ,CopyRight,T=NOINCLUDE.

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// TVirtualHistPainter                                                  //
//                                                                      //
// Abstract base class for Histogram painters                           //
//                                                                      //
//////////////////////////////////////////////////////////////////////////


#ifndef ROOT_TClass
//*KEEP,TClass.
#include "TClass.h"
//*KEND.
#endif

class TH1;
class TF1;

class TVirtualHistPainter : public TObject {


private:
   static TClass   *fgPainter; //Pointer to class painter

public:
    TVirtualHistPainter();
    virtual ~TVirtualHistPainter();
    virtual Int_t   DistancetoPrimitive(Int_t px, Int_t py) = 0;
    virtual void    DrawPanel() = 0;
    virtual void    ExecuteEvent(Int_t event, Int_t px, Int_t py) = 0;
    virtual void    FitPanel() = 0;
    virtual Text_t *GetObjectInfo(Int_t px, Int_t py) = 0;
    virtual void    Paint(Option_t *option="") = 0;
    virtual void    PaintStat(Int_t dostat, TF1 *fit) = 0;
    virtual void    SetHistogram(TH1 *h) = 0;

   static  TVirtualHistPainter *HistPainter(TH1 *obj);
   static void      SetPainter(const char *painter);

    ClassDef(TVirtualHistPainter,0)  //Abstract interface for histogram painters
};

#endif