//+------------------------------------------------------------------+
//|                                                      ProjectName |
//|                                      Copyright 2012, CompanyName |
//|                                       http://www.companyname.net |
//+------------------------------------------------------------------+
/*------------------------------------------------------------------+
 |                                                   MTF-Env-2B.mq4 |
 |                                                 Copyright © 2011 |
 |                                             basisforex@gmail.com |
 +------------------------------------------------------------------*/
#property copyright "Copyright © 2011, basisforex@gmail.com"
#property link      "basisforex@gmail.com"
//----------------------------------------
#property indicator_chart_window
#property indicator_buffers 8
#property indicator_color1 White
#property indicator_color2 White
#property indicator_color3 Yellow
#property indicator_color4 Yellow
#property indicator_color5 Brown
#property indicator_color6 Brown
#property indicator_color7 Blue
#property indicator_color8 Blue
//-------------------------------------
extern bool       TimeFrame2     = true;
extern bool       TimeFrame3     = true;
extern bool       TimeFrame4     = true;
//-----
extern int        ma_period      =13;
extern int        ma_method=0;//  0 - 3
extern int        ma_shift       =0;
extern int        applied_price=0;//  0 - 6 
//-----
extern double     deviation1=0.1;//  Percent deviation from the main line. 
extern double     deviation2     = 0.2;
extern double     deviation3     = 0.3;
extern double     deviation4     = 0.4;
//-----
double s1[];
double s2[];
double s3[];
double s4[];
double s5[];
double s6[];
double s7[];
double s8[];
//+------------------------------------------------------------------+
int init()
  {
   if(Period()>240)
     {
      Print("Too large timeframe");
      return(INIT_FAILED);
     }
   SetIndexBuffer(0,s1);
   SetIndexBuffer(1,s2);
   SetIndexBuffer(2,s3);
   SetIndexBuffer(3,s4);
   SetIndexBuffer(4,s5);
   SetIndexBuffer(5,s6);
   SetIndexBuffer(6,s7);
   SetIndexBuffer(7,s8);
//-----
   SetIndexStyle(0,DRAW_LINE);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexStyle(2,DRAW_LINE);
   SetIndexStyle(3,DRAW_LINE);
   SetIndexStyle(4,DRAW_LINE);
   SetIndexStyle(5,DRAW_LINE);
   SetIndexStyle(6,DRAW_LINE);
   SetIndexStyle(7,DRAW_LINE);
//-----
   return(0);
  }
//+------------------------------------------------------------------+
string GetNextTF(int curTF)
  {
   switch(curTF)
     {
      case 1:
         return("5=15#30");
         break;
      case 5:
         return("15=30#60");
         break;
      case 15:
         return("30=60#240");
         break;
      case 30:
         return("60=240#1440");
         break;
      case 60:
         return("240=1440#10080");
         break;
      case 240:
         return("1440=10080#43200");
         break;
     }
  }
//+------------------------------------------------------------------+ 
int start()
  {
   int limit;
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//-----
   string T= GetNextTF(Period());
   int tf2 = StrToDouble(StringSubstr(T, 0, StringFind(T, "=", 0)));
   int tf3 = StrToDouble(StringSubstr(T, StringFind(T, "=", 0) + 1, StringFind(T, "#", 0)));
   int tf4 = StrToDouble(StringSubstr(T, StringFind(T, "#", 0) + 1, StringLen(T)));
   int tf  = Period();

   if(tf>0 && tf2>0 && tf3>0 && tf4>0)
     {
      //-----
      for(int i=limit-1; i>=0; i--)
        {
         //===============================================         __________________________________________________   st1  &  st2  &  st3  & st4
         if(TimeFrame2==true && TimeFrame3==true && TimeFrame4==true)
           {
            Comment(Period()," White","\n",tf2," Yellow","\n",tf3," Brown","\n",tf4," Blue");
            //    iEnvelopes(NULL, 0, 13,MODE_SMA,10,PRICE_CLOSE,0.2,MODE_UPPER,0);      
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s3[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_UPPER, i / (tf2 / tf));
            s4[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_LOWER, i / (tf2 / tf));
            s5[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_UPPER, i / (tf3 / tf));
            s6[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_LOWER, i / (tf3 / tf));
            s7[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_UPPER, i / (tf4 / tf));
            s8[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_LOWER, i / (tf4 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st2  &  st3   
         else if(TimeFrame2==true && TimeFrame3==true && TimeFrame4==false)
           {
            Comment(Period()," White","\n",tf2," Yellow","\n",tf3," Brown");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s3[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_UPPER, i / (tf2 / tf));
            s4[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_LOWER, i / (tf2 / tf));
            s5[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_UPPER, i / (tf3 / tf));
            s6[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_LOWER, i / (tf3 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st2  &  st4    
         else if(TimeFrame2==true && TimeFrame3==false && TimeFrame4==true)
           {
            Comment(Period()," White","\n",tf2," Yellow","\n",tf4," Blue");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s3[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_UPPER, i / (tf2 / tf));
            s4[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_LOWER, i / (tf2 / tf));
            s7[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_UPPER, i / (tf4 / tf));
            s8[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_LOWER, i / (tf4 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st3  &  st4    
         else if(TimeFrame2==false && TimeFrame3==true && TimeFrame4==true)
           {
            Comment(Period()," White","\n",tf3," Brown","\n",tf4," Blue");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s5[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_UPPER, i / (tf3 / tf));
            s6[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_LOWER, i / (tf3 / tf));
            s7[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_UPPER, i / (tf4 / tf));
            s8[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_LOWER, i / (tf4 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st2    
         else if(TimeFrame2==true && TimeFrame3==false && TimeFrame4==false)
           {
            Comment(Period()," White","\n",tf2," Yellow");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s3[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_UPPER, i / (tf2 / tf));
            s4[i]  = iEnvelopes(NULL, tf2, ma_period, ma_method, ma_shift, applied_price, deviation2, MODE_LOWER, i / (tf2 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st3    
         else if(TimeFrame2==false && TimeFrame3==true && TimeFrame4==false)
           {
            Comment(Period()," White","\n",tf3," Brown");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s5[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_UPPER, i / (tf3 / tf));
            s6[i]  = iEnvelopes(NULL, tf3, ma_period, ma_method, ma_shift, applied_price, deviation3, MODE_LOWER, i / (tf3 / tf));
           }
         //===============================================         __________________________________________________   st1  &  st4    
         else if(TimeFrame2==false && TimeFrame3==false && TimeFrame4==true)
           {
            Comment(Period()," White","\n",tf4," Blue");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
            s7[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_UPPER, i / (tf4 / tf));
            s8[i]  = iEnvelopes(NULL, tf4, ma_period, ma_method, ma_shift, applied_price, deviation4, MODE_LOWER, i / (tf4 / tf));
           }
         //===============================================          __________________________________________________   st1
         else if(TimeFrame2==false && TimeFrame3==false && TimeFrame4==false)
           {
            Comment(Period()," White");
            s1[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_UPPER, i);
            s2[i]  = iEnvelopes(NULL, 0, ma_period, ma_method, ma_shift, applied_price, deviation1, MODE_LOWER, i);
           }
        }
     }
//==============================================================================================================================================
   return(0);
  }
//+------------------------------------------------------------------+