TPieSlice.h

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/*************************************************************************
 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOT_TPieSlice
#define ROOT_TPieSlice
 
#include <TNamed.h>
#include <TAttFill.h>
#include <TAttLine.h>
 
class TPie;
 
class TPieSlice : public TNamed, public TAttFill, public TAttLine {
 
   friend class TPie;
 
private:
   Bool_t   fIsActive;     ///<! True if is the slice under the mouse pointer
 
protected:
   TPie *fPie{nullptr};    ///< The TPie object that contain this slice
   Double_t fValue;        ///< value value of this slice
   Double_t fRadiusOffset; ///< offset from the center of the pie
 
public:
   TPieSlice();
   TPieSlice(const char *, const char *, TPie *, Double_t val = 0);
   virtual ~TPieSlice() {}
 
   void           Copy(TObject &slice) const override;
   Int_t          DistancetoPrimitive(Int_t,Int_t) override;
   Double_t       GetRadiusOffset() const;
   Double_t       GetValue() const;
   void           SavePrimitive(std::ostream &out, Option_t *opts="") override;
   void           SetIsActive(Bool_t is) { fIsActive = is; }
   void           SetRadiusOffset(Double_t);  // *MENU*
   void           SetValue(Double_t);         // *MENU*
 
   ClassDefOverride(TPieSlice,1)            // Slice of a pie chart graphics class
};
 
#endif