i-spectranalysis_chaikin

//+------------------------------------------------------------------+
//|                                     i-SpectrAnalysis_Chaikin.mq5 |
//|                                           Copyright © 2006, klot |
//|                                                     klot@mail.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, klot"
#property link      "klot@mail.ru"
//--- íîìåð âåðñèè èíäèêàòîðà
#property version   "1.00"
//--- îòðèñîâêà èíäèêàòîðà â îòäåëüíîì îêíå
#property indicator_separate_window
//--- êîëè÷åñòâî èíäèêàòîðíûõ áóôåðîâ
#property indicator_buffers 1 
//--- èñïîëüçîâàíî âñåãî îäíî ãðàôè÷åñêîå ïîñòðîåíèå
#property indicator_plots   1
//+----------------------------------------------+
//| Ïàðàìåòðû îòðèñîâêè èíäèêàòîðà               |
//+----------------------------------------------+
//--- îòðèñîâêà èíäèêàòîðà â âèäå ëèíèè
#property indicator_type1   DRAW_LINE
//--- â êà÷åñòâå öâåòà ëèíèè èíäèêàòîðà èñïîëüçîâàí OrangeRed öâåò
#property indicator_color1 clrOrangeRed
//--- ëèíèÿ èíäèêàòîðà - íåïðåðûâíàÿ êðèâàÿ
#property indicator_style1  STYLE_SOLID
//--- òîëùèíà ëèíèè èíäèêàòîðà ðàâíà 2
#property indicator_width1  2
//--- îòîáðàæåíèå ìåòêè èíäèêàòîðà
#property indicator_label1  "i-SpectrAnalysis_Chaikin"
//+----------------------------------------------+
//| Îáúÿâëåíèå êîíñòàíò                          |
//+----------------------------------------------+
#define RESET 0     // êîíñòàíòà äëÿ âîçâðàòà òåðìèíàëó êîìàíäû íà ïåðåñ÷åò èíäèêàòîðà
//+----------------------------------------------+
//| Îïèñàíèå áèáëèîòåêè dt_FFT.mqh               |
//+----------------------------------------------+
#include <dt_FFT.mqh> 
//+----------------------------------------------+
//| Âõîäíûå ïàðàìåòðû èíäèêàòîðà                 |
//+----------------------------------------------+
input uint                fast_ma_period=3;       // Áûñòðûé ïåðèîä 
input uint                slow_ma_period=10;      // Ìåäëåííûé ïåðèîä
input ENUM_MA_METHOD       ma_method=MODE_LWMA;   // Òèï ñãëàæèâàíèÿ
input ENUM_APPLIED_VOLUME VolumeType=VOLUME_TICK; // Îáúåì 
input uint N = 7;                                 // Äëèíà ðÿäà
input uint SS = 20;                               // Êîýôôèöèåíò ñãëàæèâàíèÿ
input int Shift=0;                                // Ñäâèã èíäèêàòîðà ïî ãîðèçîíòàëè â áàðàõ
//+----------------------------------------------+
//--- îáúÿâëåíèå äèíàìè÷åñêîãî ìàññèâà, êîòîðûé â äàëüíåéøåì
//--- áóäåò èñïîëüçîâàí â êà÷åñòâå èíäèêàòîðíîãî áóôåðà
double IndBuffer[];
//---
int M,tnn1,ss;
//---
double aa[];
//--- îáúÿâëåíèå öåëî÷èñëåííûõ ïåðåìåííûõ íà÷àëà îòñ÷åòà äàííûõ
int min_rates_total;
//--- îáúÿâëåíèå öåëî÷èñëåííûõ ïåðåìåííûõ äëÿ õåíäëîâ èíäèêàòîðîâ
int Ind_Handle;
//+------------------------------------------------------------------+   
//| i-SpectrAnalysis_Chaikin indicator initialization function       | 
//+------------------------------------------------------------------+ 
int OnInit()
  {
//--- èíèöèàëèçàöèÿ ïåðåìåííûõ íà÷àëà îòñ÷åòà äàííûõ
   tnn1=int(MathPow(2,N));
   M=ArrayResize(aa,tnn1+1);
   ArraySetAsSeries(aa,true);
   ss=int(MathMin(SS,M));
   min_rates_total=int(M);
//--- ïîëó÷åíèå õåíäëà èíäèêàòîðà Chaikin
   Ind_Handle=iChaikin(Symbol(),PERIOD_CURRENT,fast_ma_period,slow_ma_period,ma_method,VolumeType);
   if(Ind_Handle==INVALID_HANDLE)
     {
      Print(" Íå óäàëîñü ïîëó÷èòü õåíäë èíäèêàòîðà Chaikin");
      return(INIT_FAILED);
     }
//--- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà â èíäèêàòîðíûé áóôåð
   SetIndexBuffer(0,IndBuffer,INDICATOR_DATA);
//--- îñóùåñòâëåíèå ñäâèãà èíäèêàòîðà 1 ïî ãîðèçîíòàëè
   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);
//--- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷åòà îòðèñîâêè èíäèêàòîðà
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);
//--- óñòàíîâêà çíà÷åíèé èíäèêàòîðà, êîòîðûå íå áóäóò âèäèìû íà ãðàôèêå
   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0);
//--- èíäåêñàöèÿ ýëåìåíòîâ â áóôåðå êàê â òàéìñåðèè
   ArraySetAsSeries(IndBuffer,true);
//--- ñîçäàíèå èìåíè äëÿ îòîáðàæåíèÿ â îòäåëüíîì ïîäîêíå è âî âñïëûâàþùåé ïîäñêàçêå
   IndicatorSetString(INDICATOR_SHORTNAME,"i-SpectrAnalysis_Chaikin");
//--- îïðåäåëåíèå òî÷íîñòè îòîáðàæåíèÿ çíà÷åíèé èíäèêàòîðà
   IndicatorSetInteger(INDICATOR_DIGITS,0);
//--- çàâåðøåíèå èíèöèàëèçàöèè
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+ 
//| i-SpectrAnalysis_Chaikin iteration function                      | 
//+------------------------------------------------------------------+ 
int OnCalculate(const int rates_total,    // êîëè÷åñòâî èñòîðèè â áàðàõ íà òåêóùåì òèêå
                const int prev_calculated,// êîëè÷åñòâî èñòîðèè â áàðàõ íà ïðåäûäóùåì òèêå
                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[])
  {
//--- ïðîâåðêà êîëè÷åñòâà áàðîâ íà äîñòàòî÷íîñòü äëÿ ðàñ÷åòà
   if(rates_total<min_rates_total || BarsCalculated(Ind_Handle)<rates_total) return(RESET);
//---
   for(int bar=rates_total-1; bar>=prev_calculated && !IsStopped(); bar--) IndBuffer[bar]=0.0;
//--- êîïèðóåì âíîâü ïîÿâèâøèåñÿ äàííûå â ìàññèâ
   if(CopyBuffer(Ind_Handle,0,0,M,aa)<=0) return(RESET);
//---
   int end=M-1;
   fastcosinetransform(aa,tnn1,false);
   for(int kkk=0; kkk<=end && !IsStopped(); kkk++) if(kkk>=ss) aa[kkk]=0.0;
   fastcosinetransform(aa,tnn1,true);
   for(int rrr=0; rrr<=end && !IsStopped(); rrr++) IndBuffer[rrr]=aa[rrr];
//---     
   return(rates_total);
  }
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