RiskSpread

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

//|                                                   RiskSpread.mq5 | 

//|                                        Copyright © 2007, VadimVP | 

//|                                                poluyan@fxmail.ru | 

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

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

#property copyright "Copyright © 2007, VadimVP"

#property link "poluyan@fxmail.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=> 420 1CD5@0

#property indicator_buffers 2

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

#property indicator_plots   1

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

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

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

//---- >B@8A>2:0 8=48:0B>@0 1 2 2845 F25B=>3> >1;0:0

#property indicator_type1   DRAW_FILLING

//---- 2 :0G5AB25 F25B0 8=48:0B>@0 8A?>;L7>20=

#property indicator_color1  clrLavender

//---- >B>1@065=85 1KG59 <5B:8 8=48:0B>@0

#property indicator_label1  "RiskSpread"

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

//|  >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                 |

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

input uint K_Spread = 10; // :>;8G5AB2> A?@54>2

input int Shift=0; // A4283 8=48:0B>@0 ?> 3>@87>=B0;8 2 10@0E 

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

//---- >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 UpBuffer[];

double DnBuffer[];

//---- 1JO2;5=85 F5;KE ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

int min_rates_total;

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

//| Custom indicator initialization function                         |

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

void OnInit()

  {

//---- =8F80;870F8O ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

   min_rates_total=1;



//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(0,UpBuffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 1 ?> 3>@87>=B0;8 =0 Shift

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 1 =0 min_rates_total

   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);

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(1,DnBuffer,INDICATOR_DATA);



//---- 8=8F80;870F88 ?5@5<5==>9 4;O :>@>B:>3> 8<5=8 8=48:0B>@0

   string shortname;

   StringConcatenate(shortname,"RiskSpread(",K_Spread,", ",Shift,")");

//--- A>740=85 8<5=8 4;O >B>1@065=8O 2 >B45;L=>< ?>4>:=5 8 2> 2A?;K20NI59 ?>4A:07:5

   IndicatorSetString(INDICATOR_SHORTNAME,shortname);

//--- >?@545;5=85 B>G=>AB8 >B>1@065=8O 7=0G5=89 8=48:0B>@0

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);

//----

  }

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

//| Custom indicator iteration function                              |

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

int OnCalculate(

                const int rates_total,    // :>;8G5AB2> 8AB>@88 2 10@0E =0 B5:CI5< B8:5

                const int prev_calculated,// :>;8G5AB2> 8AB>@88 2 10@0E =0 ?@54K4CI5< B8:5

                const datetime &time[],

                const double &open[],

                const double& high[],     // F5=>2>9 <0AA82 <0:A8<C<>2 F5=K 4;O @0AGQB0 8=48:0B>@0

                const double& low[],      // F5=>2>9 <0AA82 <8=8<C<>2 F5=K  4;O @0AGQB0 8=48:0B>@0

                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 @0AGQB0

   if(rates_total<min_rates_total) return(RESET);



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

   int first,bar;

   double DxSpread;



//---- @0AGQB AB0@B>2>3> =><5@0 first 4;O F8:;0 ?5@5AGQB0 10@>2

   if(prev_calculated>rates_total || prev_calculated<=0) // ?@>25@:0 =0 ?5@2K9 AB0@B @0AGQB0 8=48:0B>@0

        first=3; // AB0@B>2K9 =><5@ 4;O @0AGQB0 2A5E 10@>2

   else first=prev_calculated-1; // AB0@B>2K9 =><5@ 4;O @0AGQB0 =>2KE 10@>2



//---- >A=>2=>9 F8:; @0AGQB0 8=48:0B>@0

   for(bar=first; bar<rates_total && !IsStopped(); bar++)

     {

      DxSpread=_Point*K_Spread*spread[bar];



      UpBuffer[bar]=close[bar]+DxSpread;     

      DnBuffer[bar]=close[bar]-_Point*spread[bar]-DxSpread;

     }

//----     

   return(rates_total);

  }

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