//+------------------------------------------------------------------+ //| XprofuterOverlay.mq5 | //| | //| | //+------------------------------------------------------------------+ #property copyright "" #property link "" #property version "1.00" //---- drawing the indicator in the main window #property indicator_chart_window //----two buffers are used for calculation of drawing of the indicator #property indicator_buffers 2 //---- only one plot is used #property indicator_plots 1 //+-----------------------------------+ //| Indicator 1 drawing parameters | //+-----------------------------------+ //---- drawing the indicator as a line #property indicator_type1 DRAW_LINE //---- red color is used as the color of the indicator line #property indicator_color1 Red //---- the indicator line is a continuous curve #property indicator_style1 STYLE_SOLID //---- Indicator line width is equal to 1 #property indicator_width1 1 //---- displaying the indicator label #property indicator_label1 "Signal" //+-----------------------------------+ //| Input parameters of the indicator| //+-----------------------------------+ input uint per = 14; // Period for signal input uint drawShift = 14; // Forward shift //+-----------------------------------+ //---- declaration of a dynamic array that further // will be used as an indicator buffer double ExtLineBuffer[]; double ExtBuffer[]; //---- declaration of the integer variables for the start of data calculation int min_rates_total; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ void OnInit() { //---- Initialization of variables of the start of data calculation min_rates_total=int(per); //---- set ExtLineBuffer1dynamic array as an indicator buffer SetIndexBuffer(0,ExtLineBuffer,INDICATOR_DATA); //---- shifting the indicator horizontally by drawShift PlotIndexSetInteger(0,PLOT_SHIFT,drawShift); //---- performing the shift of beginning of indicator drawing PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total); //--- restriction to draw empty values for the indicator PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE); //---- indexing elements in the buffer as in timeseries ArraySetAsSeries(ExtLineBuffer,true); //---- set ExtLineBuffer1dynamic array as an indicator buffer SetIndexBuffer(1,ExtBuffer,INDICATOR_CALCULATIONS); //---- indexing elements in the buffer as in timeseries ArraySetAsSeries(ExtBuffer,true); //---- initializations of variable for indicator short name string shortname; StringConcatenate(shortname,"Xprofuter(",per," ,",drawShift,")"); //--- creation of the name to be displayed in a separate sub-window and in a pop up help IndicatorSetString(INDICATOR_SHORTNAME,shortname); //---- determination of accuracy of displaying the indicator values IndicatorSetInteger(INDICATOR_DIGITS,0); //---- } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int OnCalculate( const int rates_total, // amount of history in bars 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 the number of bars to be enough for calculation if(rates_totalrates_total || prev_calculated<=0)// checking for the first start of calculation of an indicator { limit=rates_total-1-min_rates_total; // starting index for calculation of all bars } else limit=int(rates_total-prev_calculated+per); // starting index for calculation of new bars //---- indexing elements in arrays as timeseries ArraySetAsSeries(open,true); ArraySetAsSeries(close,true); //---- main cycle of calculation of the indicator for(bar=limit; bar>=0 && !IsStopped(); bar--) { if(int(bar-per)<0) lim=0; else lim=int(bar-per); imp=0; for(int i=bar; i>=lim; i--) imp+=(close[i]-open[i]); ExtBuffer[bar]=imp; ExtLineBuffer[bar]=EMPTY_VALUE; } barClose = close[0]-ExtBuffer[per]; //---- main cycle of calculation of the indicator for(bar = int(per-1); bar >= 0 && !IsStopped(); bar--) ExtLineBuffer[bar]=barClose+ExtBuffer[bar]; //---- return(rates_total); } //+------------------------------------------------------------------+