//+------------------------------------------------------------------+ //| ASI_HTF.mq5 | //| Copyright © 2014, Nikolay Kositsin | //| Khabarovsk, farria@mail.redcom.ru | //+------------------------------------------------------------------+ #property copyright "Copyright © 2014, Nikolay Kositsin" #property link "farria@mail.redcom.ru" //--- indicator version #property version "1.00" #property description "ASI with the timeframe selection option available in input parameters" //--- drawing the indicator in a separate window #property indicator_separate_window //--- number of indicator buffers #property indicator_buffers 2 //--- one plot is used #property indicator_plots 1 //+-------------------------------------+ //| declaration of constants | //+-------------------------------------+ #define RESET 0 // A constant for returning the indicator recalculation command to the terminal #define INDICATOR_NAME "ASI" // A constant for the indicator name #define SIZE 1 // A constant for the number of calls of the CountIndicator function //+-------------------------------------+ //| Indicator 1 drawing parameters | //+-------------------------------------+ //--- a line is used for the indicator #property indicator_type1 DRAW_LINE //--- coral is used as the color of the indicator line #property indicator_color1 clrCoral //--- indicator line is a solid one #property indicator_style1 STYLE_SOLID //--- indicator line width is 4 #property indicator_width1 4 //--- displaying the indicator label #property indicator_label1 INDICATOR_NAME //+-------------------------------------+ //| Input Parameters | //+-------------------------------------+ input ENUM_TIMEFRAMES TimeFrame=PERIOD_H4; // Indicator chart period input uint T = 300; // Deviation limit input uint ATRPeriod=1; // ATR period input int Shift=0; // Horizontal shift of the indicator in bars //+-------------------------------------+ //--- declaration of dynamic arrays that //--- will be used as indicator buffers double IndBuffer[]; double ColorIndBuffer[]; //--- declaration of string variables string Symbol_,Word; //--- declaration of integer variables of data starting point int min_rates_total; //--- declaration of integer variables for the indicators handles int Ind_Handle; //+------------------------------------------------------------------+ //| Getting a timeframe as a string | //+------------------------------------------------------------------+ string GetStringTimeframe(ENUM_TIMEFRAMES timeframe) {return(StringSubstr(EnumToString(timeframe),7,-1));} //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- checking correctness of the chart periods if(!TimeFramesCheck(INDICATOR_NAME,TimeFrame)) return(INIT_FAILED); //--- initialization of variables min_rates_total=2; Symbol_=Symbol(); Word=INDICATOR_NAME+" indicator: "+Symbol_+StringSubstr(EnumToString(_Period),7,-1); //--- getting the handle of the ASI indicator Ind_Handle=iCustom(Symbol(),TimeFrame,INDICATOR_NAME,T,ATRPeriod,0); if(Ind_Handle==INVALID_HANDLE) { Print(" Failed to get the handle of the ASI indicator"); return(INIT_FAILED); } //--- Initialization of indicator buffers IndInit(0,IndBuffer,EMPTY_VALUE,min_rates_total,Shift); //--- creation of the name to be displayed in a separate sub-window and in a pop up help string shortname; StringConcatenate(shortname,INDICATOR_NAME,"(",GetStringTimeframe(TimeFrame),")"); IndicatorSetString(INDICATOR_SHORTNAME,shortname); //--- determining the accuracy of the indicator values IndicatorSetInteger(INDICATOR_DIGITS,_Digits); //--- initialization end return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom iteration function | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total, // number of bars in history at the current tick const int prev_calculated,// amount of history in bars at the previous tick 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[]) { //--- checking if the number of bars is enough for the calculation if(rates_totalRates_Total || Prev_Calculated<=0)// checking for the first start of the indicator calculation { limit=Rates_Total-Min_Rates_Total-1; // starting index for the calculation of all bars LastCountBar[Numb]=limit; } else limit=LastCountBar[Numb]+Rates_Total-Prev_Calculated; // starting index for calculation of new bars //--- main calculation loop of the indicator for(int bar=limit; bar>=0 && !IsStopped(); bar--) { //--- zero out the contents of the indicator buffers for the calculation IndBuf[bar]=0.0; //--- copy new data to the IndTime array if(CopyTime(Symbol_,TFrame,iTime[bar],1,IndTime)<=0) return(RESET); //--- if(iTime[bar]>=IndTime[0] && iTime[bar+1]