CandleColorMidPoint

ÿþ//+------------------------------------------------------------------+

//|                                          CandleColorMidPoint.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

//+------------------------------------------------------------------+

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "Colored Middle Point of candles"

#property indicator_chart_window

#property indicator_buffers 2

#property indicator_plots   1

//--- plot ColorMidPoint

#property indicator_label1  "Color Middle Point"

#property indicator_type1   DRAW_COLOR_ARROW

#property indicator_color1  clrDodgerBlue,clrDarkOrange,clrDarkGray

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- enums

enum ENUM_CANDLE_TYPE

  {

   TYPE_CANDLE_HL,      // Candle

   TYPE_CANDLE_OC       // Body

  };

//---

enum ENUM_ARROW_TYPE

  {

   TYPE_ARROW_DOT0      =  158,  // Smallest Dot

   TYPE_ARROW_DOT1      =  159,  // Small Dot

   TYPE_ARROW_DOT2      =  108,  // Big Dot

   TYPE_ARROW_SQUARE1   =  167,  // Small Square

   TYPE_ARROW_SQUARE2   =  110,  // Big Square

   TYPE_ARROW_DIAMOND1  =  115,  // Small Diamond

   TYPE_ARROW_DIAMOND2  =  116,  // Big Diamond

   TYPE_ARROW_CROSS     =  251   // Cross

  };

//--- input parameters

input ENUM_CANDLE_TYPE  InpTypeCandle     =  TYPE_CANDLE_HL;   // Middle point for

input ENUM_ARROW_TYPE   InpTypeArrow      =  TYPE_ARROW_DOT1;  // Dots type

//--- indicator buffers

double         BufferCMP[];

double         BufferColors[];

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferCMP,INDICATOR_DATA);

   SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX);

//--- setting a code from the Wingdings charset as the property of PLOT_ARROW

   PlotIndexSetInteger(0,PLOT_ARROW,(int)InpTypeArrow);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"CandleMidPoint");

   IndicatorSetInteger(INDICATOR_DIGITS,Digits());

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferCMP,true);

   ArraySetAsSeries(BufferColors,true);

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime &time[],

                const double &open[],

                const double &high[],

                const double &low[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   if(rates_total<1) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-1;

      ArrayInitialize(BufferCMP,EMPTY_VALUE);

      ArrayInitialize(BufferColors,2);

     }



//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      BufferCMP[i]=(InpTypeCandle==TYPE_CANDLE_OC ? (open[i]+close[i])/2.0 : (high[i]+low[i])/2.0);

      BufferColors[i]=(open[i]<close[i] ? 0 : open[i]>close[i] ? 1 : 2);

     }

   

//--- return value of prev_calculated for next call

   return(rates_total);

  }

//+------------------------------------------------------------------+