Doji_Arrows

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

//|                                                  Doji_Arrows.mq5 |

//|                              Copyright © 2017, Khlistov Vladimir |

//|                                               http://cmillion.ru |

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

//--- 02B>@AB2> 8=48:0B>@0

#property copyright "Copyright © 2017, Khlistov Vladimir"

//--- AAK;:0 =0 A09B 02B>@0

#property link      "http://cmillion.ru"

//--- =><5@ 25@A88 8=48:0B>@0

#property version   "1.00"

//--- >B@8A>2:0 8=48:0B>@0 2 3;02=>< >:=5

#property indicator_chart_window 

//---- 4;O @0AG5B0 8 >B@8A>2:8 8=48:0B>@0 8A?>;L7>20=> ?OBL 1CD5@>2

#property indicator_buffers 5

//---- 8A?>;L7>20=> 2A53> >4=> 3@0D8G5A:>5 ?>AB@>5=85

#property indicator_plots   1

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

//|  0@0<5B@K >B@8A>2:8 8=48:0B>@0   |

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

//---- 2 :0G5AB25 8=48:0B>@0 8A?>;L7>20=K F25B=K5 A25G8

#property indicator_type1   DRAW_COLOR_CANDLES

#property indicator_color1  clrLime,clrGreen,clrBrown,clrMagenta

//---- >B>1@065=85 <5B:8 8=48:0B>@0

#property indicator_label1  "Doji_Arrows_Open;Doji_Arrows_High;Doji_Arrows_Low;Doji_Arrows_Close"

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

//|  >1JO2;5=85 :>=AB0=B                         |

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

#define RESET  0 // >=AB0=B0 4;O 2>72@0B0 B5@<8=0;C :><0=4K =0 ?5@5AGQB 8=48:0B>@0

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

//| E>4=K5 ?0@0<5B@K 8=48:0B>@0                 |

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



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

//---- >1JO2;5=85 48=0<8G5A:8E <0AA82>2, :>B>@K5 1C4CB 2 40;L=59H5< 8A?>;L7>20=K 2 :0G5AB25 8=48:0B>@=KE 1CD5@>2

double ExtOpenBuffer[];

double ExtHighBuffer[];

double ExtLowBuffer[];

double ExtCloseBuffer[];

double ExtColorBuffer[];

//---

int min_rates_total;

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//--- 8=8F80;870F8O 3;>10;L=KE ?5@5<5==KE

   min_rates_total=3;

//---- ?@52@0I5=85 48=0<8G5A:8E <0AA82>2 2 8=48:0B>@=K5 1CD5@K

   SetIndexBuffer(0,ExtOpenBuffer,INDICATOR_DATA);

   SetIndexBuffer(1,ExtHighBuffer,INDICATOR_DATA);

   SetIndexBuffer(2,ExtLowBuffer,INDICATOR_DATA);

   SetIndexBuffer(3,ExtCloseBuffer,INDICATOR_DATA);

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 F25B>2>9, 8=45:A=K9 1CD5@   

   SetIndexBuffer(4,ExtColorBuffer,INDICATOR_COLOR_INDEX);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAG5B0 >B@8A>2:8 8=48:0B>@0

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,NULL);

//---- 70?@5B =0 >B>1@065=85 7=0G5=89 8=48:0B>@0 2 ;52>< 25@E=5< C3;C >:=0 8=48:0B>@0

   PlotIndexSetInteger(0,PLOT_SHOW_DATA,false);

//--- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(ExtOpenBuffer,true);

   ArraySetAsSeries(ExtHighBuffer,true);

   ArraySetAsSeries(ExtLowBuffer,true);

   ArraySetAsSeries(ExtCloseBuffer,true);

   ArraySetAsSeries(ExtColorBuffer,true);

//--- #AB0=>2:0 D>@<0B0 B>G=>AB8 >B>1@065=8O 8=48:0B>@0

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);

//--- 8<O 4;O >:>= 40==KE 8 <5B:0 4;O ?>4>:>= 

   string short_name="Doji_Arrows";

   IndicatorSetString(INDICATOR_SHORTNAME,short_name);

//--- 7025@H5=85 8=8F80;870F88

   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[])

  {

//--- ?@>25@:0 :>;8G5AB20 10@>2 =0 4>AB0B>G=>ABL 4;O @0AG5B0

   if(rates_total<min_rates_total) return(RESET);



//--- >1JO2;5=8O ;>:0;L=KE ?5@5<5==KE 

   int limit,bar;

   bool uptrend,downtrend;

   static bool uptrend_old,downtrend_old;



//--- @0AG5B AB0@B>2>3> =><5@0 limit 4;O F8:;0 ?5@5AG5B0 10@>2

   if(prev_calculated>rates_total || prev_calculated<=0)// ?@>25@:0 =0 ?5@2K9 AB0@B @0AG5B0 8=48:0B>@0

     {

      limit=rates_total-min_rates_total; // AB0@B>2K9 =><5@ 4;O @0AG5B0 2A5E 10@>2   

      uptrend_old=downtrend_old=false;

     }

   else

     {

      limit=rates_total-prev_calculated; // AB0@B>2K9 =><5@ 4;O @0AG5B0 =>2KE 10@>2

     }

//--- 8=45:A0F8O M;5<5=B>2 2 <0AA820E :0: 2 B09<A5@8OE  

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(close,true);

   

   uptrend=uptrend_old;

   downtrend=downtrend_old;

//--- >A=>2=>9 F8:; @0AG5B0 8=48:0B>@0

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

     {

      ExtOpenBuffer[bar]=ExtLowBuffer[bar]=ExtHighBuffer[bar]=ExtCloseBuffer[bar]=NULL;

      ExtColorBuffer[bar]=4;

      

      uptrend=false;

      downtrend=false;

      

      

      if (close[bar+2]==open[bar+2] && close[bar+1]>high[bar+2]) uptrend=true; 

      if (close[bar+2]!=open[bar+2] && close[bar+1]<=high[bar+2]) uptrend=false;

      if (!uptrend==uptrend_old && uptrend)

        {

         ExtOpenBuffer[bar]=open[bar];

         ExtHighBuffer[bar]=high[bar];

         ExtLowBuffer[bar]=low[bar];

         ExtCloseBuffer[bar]=close[bar];

         if(close[bar]>=open[bar]) ExtColorBuffer[bar]=0;

         else ExtColorBuffer[bar]=1;

        }

        

      if (close[bar+2]==open[bar+2] && close[bar+1]<low[bar+2]) downtrend=true;

      if (close[bar+2]!=open[bar+2] && close[bar+1]>=low[bar+2]) downtrend=false;

      if (!downtrend==downtrend_old && downtrend)

        {

         ExtOpenBuffer[bar]=open[bar];

         ExtHighBuffer[bar]=high[bar];

         ExtLowBuffer[bar]=low[bar];

         ExtCloseBuffer[bar]=close[bar];

         if(close[bar]<=open[bar]) ExtColorBuffer[bar]=3;

         else ExtColorBuffer[bar]=2;

        }

        

      if(bar)

        {

          uptrend_old=uptrend;

          downtrend_old=downtrend;

        }

     }

//---    

   return(rates_total);

  }

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