// @(#)root/graf:$Id$
// Author: Georg Troska 2016/04/14

/*************************************************************************
 * 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_TCandle
#define ROOT_TCandle

#ifndef ROOT_TObject
#include "TObject.h"
#endif
#ifndef ROOT_TAttLine
#include "TAttLine.h"
#endif
#ifndef ROOT_TAttFill
#include "TAttFill.h"
#endif
#ifndef ROOT_TAttMarket
#include "TAttMarker.h"
#endif

#include "TH1D.h"
#include "TMath.h"

class TCandle : public TAttLine, public TAttFill, public TAttMarker {
public:
   //Candle Option
   enum CandleOption : int {
      kNoOption = 0,
      kBox = 1,
      kBoxFilled = 2,
      kMedianLine = 10,
      kMedianNotched = 20,
      kMedianCircle = 30,
      kMeanLine = 100,
      kMeanCircle = 300,
      kWhiskerAll = 1000,
      kWhisker15 = 2000,
      kAnchor = 10000,
      kPointsOutliers = 100000,
      kPointsAll = 200000,
      kPointsAllScat = 300000,
      kHorizontal = 1000000 // if this bit is not set it is vertical!
   };

protected:

   bool fIsRaw;             ///< 0: for TH1 projection, 1: using raw data
   bool fIsCalculated;
   TH1D * fProj;
   bool fDismiss;           ///< True if the candle cannot be painted

   Double_t fPosCandleAxis; ///< x-pos for a vertical candle
   Double_t fCandleWidth;   ///< The candle width

   Double_t fMean;          ///< Position of the mean
   Double_t fMedian;        ///< Position of the median
   Double_t fBoxUp;         ///< Position of the upper box end
   Double_t fBoxDown;       ///< Position of the lower box end
   Double_t fWhiskerUp;     ///< Position of the upper whisker end
   Double_t fWhiskerDown;   ///< Position of the lower whisker end

   Double_t * fDatapoints;  ///< position of all Datapoints within this candle
   Double_t fNDatapoints;   ///< Number of Datapoints within this candle

   CandleOption fOption;    ///< Setting the style of the candle
   int fLogX;
   int fLogY;

   void Calculate();

   int  GetCandleOption(const int pos) {return (fOption/(int)TMath::Power(10,pos))%10;}
   bool IsOption(CandleOption opt);
   void PaintBox(Int_t nPoints, Double_t *x, Double_t *y, Bool_t swapXY, Bool_t fill);
   void PaintLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Bool_t swapXY);

public:

   TCandle();
   TCandle(const Double_t candlePos, const Double_t candleWidth, const Int_t n, const Double_t * points);
   TCandle(const Double_t candlePos, const Double_t candleWidth, TH1D *proj);
   TCandle(const TCandle &candle);
   virtual ~TCandle();

   Double_t       GetMean() const {return fMean;}
   Double_t       GetMedian() const {return fMedian;}
   Double_t       GetQ1() const {return fBoxUp;}
   Double_t       GetQ2() const {return fMedian;}
   Double_t       GetQ3() const {return fBoxDown;}
   Bool_t         IsHorizontal() {return (IsOption(kHorizontal)); }
   Bool_t         IsVertical() {return (!IsOption(kHorizontal)); }

   void           SetOption(CandleOption opt) { fOption = opt; }
   void           SetLog(int x, int y) { fLogX = x; fLogY = y; }
   void           SetAxisPosition(const Double_t candlePos) { fPosCandleAxis = candlePos; }

   void           SetWidth(const Double_t width) { fCandleWidth = width; }
   void           SetHistogram(TH1D *proj) { fProj = proj; fIsCalculated = false;}

   virtual void   Paint(Option_t *option="");

   virtual void   SetMean(Double_t mean) { fMean = mean; }
   virtual void   SetMedian(Double_t median) { fMedian = median; }
   virtual void   SetQ1(Double_t q1) { fBoxUp = q1; }
   virtual void   SetQ2(Double_t q2) { fMedian = q2; }
   virtual void   SetQ3(Double_t q3) { fBoxDown = q3; }

   int            ParseOption(char *optin);

   ClassDef(TCandle,1)  //A Candle
};
#endif