MTF_Moving_Double

//+------------------------------------------------------------------+
//|                                                   MTF_Moving.mq4 |
//|                        Copyright 2017, MetaQuotes Software Corp. |
//|                             https://www.mql5.com/ru/users/melnik |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, MetaQuotes Software Corp."
#property link      "https://www.mql5.com/ru/users/melnik"
#property version   "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_width1 2
#property indicator_width2 2
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_type1 DRAW_LINE
#property indicator_type2 DRAW_LINE

double ma_buffer_slow[];
double ma_buffer_fast[];

//--- input parameters
input int                     PeriodMaSlow=21;  //Period slow Ma
input int                     PeriodMaFast=13;  //Pertiod fast Ma
input ENUM_APPLIED_PRICE      PriceMa=0;        //Applied price
input ENUM_MA_METHOD          MethodMa=0;       //Method Ma
input ENUM_TIMEFRAMES         Timeframe=60;     //Timeframe for calculate

ENUM_TIMEFRAMES prd;

int index=-1;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   SetIndexBuffer(0, ma_buffer_slow, INDICATOR_DATA);
   SetIndexBuffer(1, ma_buffer_fast, INDICATOR_DATA);
//---
   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[])
  {
//---
   if((rates_total-prev_calculated-PeriodMaSlow)<=0)return(0);
   
   if(Period()>Timeframe) prd=PERIOD_CURRENT;
   if(Period()<=Timeframe) prd=prd=Timeframe;
   
   for(int i=rates_total-prev_calculated-PeriodMaSlow-1;i>=0;i--)
   {
      if(TimeMinute(time[i])==0)index=iBarShift(Symbol(), prd, time[i], false);
      
      ma_buffer_fast[i]=iMA(Symbol(), prd, PeriodMaFast, 0, MethodMa, PriceMa, index);
      ma_buffer_slow[i]=iMA(Symbol(), prd, PeriodMaSlow, 0, MethodMa, PriceMa, index);
   }
   
//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+