183 lines
14 KiB
Plaintext
183 lines
14 KiB
Plaintext
//+------------------------------------------------------------------+
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//| ReverseMinMax.mq5 |
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//| Copyright 2018, MetaQuotes Software Corp. |
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//| https://mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2018, MetaQuotes Software Corp."
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#property link "https://mql5.com"
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#property version "1.00"
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#property description "Reverse Min Max indicator"
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#property indicator_chart_window
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#property indicator_buffers 4
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#property indicator_plots 4
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//--- plot RevMin
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#property indicator_label1 "Reverse Min"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- plot RevMax
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#property indicator_label2 "Reverse Max"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrGreen
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#property indicator_style2 STYLE_SOLID
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#property indicator_width2 1
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//--- plot Min
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#property indicator_label3 "Min"
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrBlue
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#property indicator_style3 STYLE_SOLID
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#property indicator_width3 1
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//--- plot Max
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#property indicator_label4 "Max"
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#property indicator_type4 DRAW_LINE
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#property indicator_color4 clrBlue
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#property indicator_style4 STYLE_SOLID
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#property indicator_width4 1
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//--- enums
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enum ENUM_INPUT_YES_NO
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{
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INPUT_YES = 1, // Yes
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INPUT_NO = 0 // No
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};
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//--- input parameters
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input uint InpPeriodRev = 5; // Reverse period
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input ENUM_INPUT_YES_NO InpShowMinMax = INPUT_NO; // Show Min/Max lines
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input uint InpPeriodMM = 20; // Min/Max period
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//--- indicator buffers
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double BufferRevMin[];
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double BufferRevMax[];
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double BufferMin[];
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double BufferMax[];
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//--- global variables
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int period_mm;
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int period_rev;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- set global variables
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period_rev=int(InpPeriodRev<2 ? 2 : InpPeriodRev);
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period_mm=int(InpPeriodMM<2 ? 2 : InpPeriodMM);
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//--- indicator buffers mapping
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SetIndexBuffer(0,BufferRevMin,INDICATOR_DATA);
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SetIndexBuffer(1,BufferRevMax,INDICATOR_DATA);
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SetIndexBuffer(2,BufferMin,INDICATOR_DATA);
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SetIndexBuffer(3,BufferMax,INDICATOR_DATA);
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//--- setting indicator parameters
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IndicatorSetString(INDICATOR_SHORTNAME,"Reverse Min Max ("+(string)period_rev+","+(string)period_mm+")");
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IndicatorSetInteger(INDICATOR_DIGITS,Digits());
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferRevMin,true);
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ArraySetAsSeries(BufferRevMax,true);
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ArraySetAsSeries(BufferMin,true);
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ArraySetAsSeries(BufferMax,true);
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//---
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//--- Проверка на минимальное колиество баров для расчёта
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if(rates_total<4) return 0;
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//--- Установка массивов буферов как таймсерий
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ArraySetAsSeries(high,true);
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ArraySetAsSeries(low,true);
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//--- Проверка и расчёт количества просчитываемых баров
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int limit=rates_total-prev_calculated;
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if(limit>1)
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{
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limit=rates_total-2;
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ArrayInitialize(BufferRevMin,EMPTY_VALUE);
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ArrayInitialize(BufferRevMax,EMPTY_VALUE);
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ArrayInitialize(BufferMin,EMPTY_VALUE);
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ArrayInitialize(BufferMax,EMPTY_VALUE);
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}
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//--- Расчёт индикатора
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for(int i=limit; i>=0 && !IsStopped(); i--)
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{
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int highest_low=HighestLow(period_rev-1,i+1);
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int lowest_high=LowestHigh(period_rev-1,i+1);
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if(highest_low==WRONG_VALUE || lowest_high==WRONG_VALUE)
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continue;
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BufferRevMax[i]=high[lowest_high];
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BufferRevMin[i]=low[highest_low];
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if(InpShowMinMax)
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{
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int highest_high=HighestHigh(period_mm-1,i+1);
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int lowest_low=LowestLow(period_mm-1,i+1);
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if(highest_high==WRONG_VALUE || lowest_low==WRONG_VALUE)
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continue;
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BufferMax[i]=high[highest_high];
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BufferMin[i]=low[lowest_low];
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}
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else
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{
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BufferMax[i]=EMPTY_VALUE;
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BufferMin[i]=EMPTY_VALUE;
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}
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}
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| Возвращает индекс максимального значения таймсерии High |
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//+------------------------------------------------------------------+
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int HighestHigh(const int count,const int start)
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{
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double array[];
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ArraySetAsSeries(array,true);
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if(CopyHigh(Symbol(),PERIOD_CURRENT,start,count,array)==count)
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return ArrayMaximum(array)+start;
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return WRONG_VALUE;
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}
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//+------------------------------------------------------------------+
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//| Возвращает индекс максимального значения таймсерии Low |
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//+------------------------------------------------------------------+
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int HighestLow(const int count,const int start)
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{
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double array[];
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ArraySetAsSeries(array,true);
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if(CopyLow(Symbol(),PERIOD_CURRENT,start,count,array)==count)
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return ArrayMaximum(array)+start;
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return WRONG_VALUE;
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}
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//+------------------------------------------------------------------+
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//| Возвращает индекс минимального значения таймсерии High |
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//+------------------------------------------------------------------+
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int LowestHigh(const int count,const int start)
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{
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double array[];
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ArraySetAsSeries(array,true);
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if(CopyHigh(Symbol(),PERIOD_CURRENT,start,count,array)==count)
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return ArrayMinimum(array)+start;
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return WRONG_VALUE;
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}
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//+------------------------------------------------------------------+
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//| Возвращает индекс минимального значения таймсерии Low |
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//+------------------------------------------------------------------+
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int LowestLow(const int count,const int start)
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{
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double array[];
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ArraySetAsSeries(array,true);
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if(CopyLow(Symbol(),PERIOD_CURRENT,start,count,array)==count)
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return ArrayMinimum(array)+start;
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return WRONG_VALUE;
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}
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//+------------------------------------------------------------------+
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