//+------------------------------------------------------------------+ //| Trailing_Stop_Level.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 "Trailing Stop level indicator" #property indicator_chart_window #property indicator_buffers 3 #property indicator_plots 2 //--- plot LevUP #property indicator_label1 "Level for short" #property indicator_type1 DRAW_LINE #property indicator_color1 clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- plot LevDN #property indicator_label2 "Level for long" #property indicator_type2 DRAW_LINE #property indicator_color2 clrGreen #property indicator_style2 STYLE_SOLID #property indicator_width2 1 //--- input parameters input double InpPercent = 30; // Percent //--- indicator buffers double BufferLevUP[]; double BufferLevDN[]; double BufferData[]; //--- global variables double percent; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables percent=(InpPercent<1 ? 1 : InpPercent/100.0); //--- indicator buffers mapping SetIndexBuffer(0,BufferLevUP,INDICATOR_DATA); SetIndexBuffer(1,BufferLevDN,INDICATOR_DATA); SetIndexBuffer(2,BufferData,INDICATOR_CALCULATIONS); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"TrailingStopLevel("+DoubleToString(percent,2)+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferLevUP,true); ArraySetAsSeries(BufferLevDN,true); ArraySetAsSeries(BufferData,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[]) { //--- Проверка на минимальное колиество баров для расчёта if(rates_total<4) return 0; //--- Установка массивов буферов как таймсерий ArraySetAsSeries(close,true); //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>1) { limit=rates_total-2; ArrayInitialize(BufferLevUP,EMPTY_VALUE); ArrayInitialize(BufferLevDN,EMPTY_VALUE); ArrayInitialize(BufferData,0); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { double loss=close[i]*percent/100; if(close[i]>BufferData[i+1] && close[i+1]>BufferData[i+1]) { BufferData[i]=fmax(BufferData[i+1],close[i]-loss); BufferLevDN[i]=BufferData[i]; BufferLevDN[i+1]=BufferData[i+1]; } else { if(close[i]BufferData[i+1]) { BufferData[i]=close[i]-loss; BufferLevDN[i]=BufferData[i]; BufferLevUP[i+1]=BufferData[i+1]; } else { BufferData[i]=close[i]+loss; BufferLevUP[i]=BufferData[i]; BufferLevDN[i+1]=BufferData[i+1]; } } } } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+