//+------------------------------------------------------------------+
//|                                                       iTrend.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
//mod2009fxtsd  ki

#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

#property indicator_separate_window
#property indicator_buffers 4
#property indicator_color1 DarkKhaki
#property indicator_color2 Red
#property indicator_color3 BlueViolet
#property indicator_color4 SlateBlue
//---- input parameters
extern int Bands_Mode=0;  // =0-2 MODE_MAIN, MODE_LOW, MODE_HIGH
extern int Bands_Price=0; // =0-6 PRICE_CLOSE,PRICE_OPEN,PRICE_HIGH,PRICE_LOW,PRICE_MEDIAN,PRICE_TYPICAL,PRICE_WEIGHTED
extern int Bands_Period=20;
extern int Bands_Deviation=2;
extern int Power_Period=13;
extern int Power_Price=0;  // =0-3 PRICE_CLOSE,PRICE_OPEN,PRICE_HIGH,PRICE_LOW
extern bool    StDevBandsOn  =  true;
extern double  StDeviation = 1.23;
extern int     StDevPeriod=13;
extern int CountBars=900;

extern string   note_Price = "0C 1O 2H 3L 4Md 5Tp 6WghC: Md(HL/2)4,Tp(HLC/3)5,Wgh(HLCC/4)6";
extern string   Bands_mode_ = "0-2 MODE_MAIN0, MODE_LOW1, MODE_HIGH2";

//---- buffers
double value[];
double value2[];
double stdh[];
double stdl[];
double val[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//   string short_name;
//---- indicator line
   IndicatorBuffers(5);
   
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexStyle(1,DRAW_HISTOGRAM);

   SetIndexBuffer(0,value);
   SetIndexBuffer(1,value2);
   SetIndexDrawBegin(0,Bars-CountBars+Bands_Period+1);
   SetIndexDrawBegin(1,Bars-CountBars+Bands_Period+1);

if (StDevBandsOn)
{
   
   SetIndexStyle(2,DRAW_LINE);
   SetIndexStyle(3,DRAW_LINE);   
   SetIndexBuffer(2,stdh);
   SetIndexBuffer(3,stdl);
   SetIndexBuffer(4,val);
   SetIndexDrawBegin(2,Bars-CountBars+Bands_Period+1);
   SetIndexDrawBegin(3,Bars-CountBars+Bands_Period+1);
  
  
   }

//----

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Trend                                                         |
//+------------------------------------------------------------------+
int start()
  {
  



   int i,CurrentBar,Bands_Mode,counted_bars=IndicatorCounted();
   double Power_Price,CurrentPrice;
//----
   if(Bars<=Bands_Period) return(0);
//---- initial zero
   if(counted_bars<Bands_Period)
   {
      for(i=1;i<=Bands_Period;i++) value [Bars-i]=0.0;
      for(i=1;i<=Bands_Period;i++) value2[Bars-i]=0.0;
   }
//----
   i=CountBars-Bands_Period-1;


   for (i=CountBars-1; i>=0; i--)
   {  
   CurrentPrice=iMA(NULL,0,1,0,0,Power_Price,i) ; 
  

   value  [i]=CurrentPrice-iBands(NULL,0,Bands_Period,Bands_Deviation,0,Bands_Mode,Bands_Price,i);
   value2 [i]=-(iBearsPower(NULL,0,Power_Period,Power_Price,i)+iBullsPower(NULL,0,Power_Period,Power_Price,i)); 
   val    [i]=value[i]+value2[i];
   }
   
   if (StDevBandsOn)
   for (i=CountBars-StDevPeriod-1; i>=0; i--)
   {  
   double std = StDeviation*iStdDevOnArray(val,0,StDevPeriod,0,0,i);                 
 
 
   stdh[i]= +std;
   stdl[i]= -std; 
   
   }  

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