MTF_EnvelopesM1

//+------------------------------------------------------------------+
//|                            MTF_EnvelopesMM.mq4                     |
//|                      Copyright © 2005, MetaQuotes Software Corp. |
//|                    www.forex-tsd.com   http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"
//---- indicator settings
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 FireBrick
//---- indicator parameters
extern int TimeFrame=0;
extern int MA_Period=34;
extern int MA_Shift=0;
extern int MA_Method=0;
extern int Applied_Price=0;
extern double Deviation=0.1;
//---- indicator buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   int    draw_begin;
   string short_name;
//---- drawing settings
   SetIndexStyle(0,DRAW_LINE);
   SetIndexStyle(1,DRAW_LINE);
   if(TimeFrame==0) TimeFrame = Period();
   SetIndexShift(0,MA_Shift*TimeFrame/Period());
   SetIndexShift(1,MA_Shift*TimeFrame/Period());
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
 //  if(MA_Period<2) MA_Period=14;
  draw_begin=MA_Period-1;
//---- indicator short name
   SetIndexLabel(0,"MTF_Env("+MA_Period+")Upper,TF"+TimeFrame+"");
   SetIndexLabel(1,"MTF_Env("+MA_Period+")Lower,TF"+TimeFrame+"");
  SetIndexDrawBegin(0,draw_begin);
  SetIndexDrawBegin(1,draw_begin);
//---- indicator buffers mapping
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexBuffer(1,ExtMapBuffer2);
 //  if(Deviation<0.1) Deviation=0.1;
  // if(Deviation>100.0) Deviation=100.0;
 
   IndicatorShortName("MTF_Env("+MA_Period+"),TF"+TimeFrame+"");


//---- name for DataWindow and indicator subwindow label   
   switch(TimeFrame)
   {
      case 1 : string TimeFrameStr="Period_M1"; break;
      case 5 : TimeFrameStr="Period_M5"; break;
      case 15 : TimeFrameStr="Period_M15"; break;
      case 30 : TimeFrameStr="Period_M30"; break;
      case 60 : TimeFrameStr="Period_H1"; break;
      case 240 : TimeFrameStr="Period_H4"; break;
      case 1440 : TimeFrameStr="Period_D1"; break;
      case 10080 : TimeFrameStr="Period_W1"; break;
      case 43200 : TimeFrameStr="Period_MN1"; break;
      default : TimeFrameStr="Current Timeframe";
   } 

 }
//---- initialization done
     return(0);
 
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   datetime TimeArray[];
   int i,limit,y=0,counted_bars=IndicatorCounted();

   ArrayCopySeries(TimeArray,MODE_TIME,Symbol(),TimeFrame);

   limit=Bars-counted_bars+TimeFrame/Period();
   
   for(i=0,y=0;i<limit;i++) 
   {
   if (Time[i]<TimeArray[y]) y++;

      ExtMapBuffer1[i] = (1+Deviation/100)*iMA(NULL,TimeFrame,MA_Period,0,MA_Method,Applied_Price,y);
      ExtMapBuffer2[i] = (1-Deviation/100)*iMA(NULL,TimeFrame,MA_Period,0,MA_Method,Applied_Price,y);
     }

//----  Refresh buffers +++++++++++++++++++++++++++++++  Raff  
   if (TimeFrame>Period()) {
     int PerINT=TimeFrame/Period()+1;
     datetime TimeArr[]; ArrayResize(TimeArr,PerINT);
     ArrayCopySeries(TimeArr,MODE_TIME,Symbol(),Period()); 
     for(i=0;i<PerINT+1;i++) {if (TimeArr[i]>=TimeArray[0]) {
//----
 /***********************************************************    
    Refresh buffers:         buffer[i] = buffer[0];
 *************************************** upgrade by Raff ***/  

   ExtMapBuffer1[i]=ExtMapBuffer1[0];
   ExtMapBuffer2[i]=ExtMapBuffer2[0];

//----
   } } }
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++


//---- done
   return(0);
  }
//+------------------------------------------------------------------+