Session Indicator Have Some Problem, Please Help Me

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Hello Everyone,

This Indicator Did not draw session box at the precession time.

For Example It Start Asia Session With 5Minutes Dealy.

If You Know Any Solution Just For This Indicator, Please Let Me Know.

Thanks a Lot


#property copyright "VDVSoft"
#property link      "vdv_2001@mail.ru"
#property version   "1.00"
#property indicator_chart_window
#property indicator_buffers 6
#property indicator_plots   3
//---- plot The Asian session
#property indicator_label1  "Asian session High; Asian session Low"
#property indicator_type1   DRAW_FILLING
#property indicator_color1  MistyRose
#property indicator_style1  STYLE_SOLID
#property indicator_width1  1
//---- plot The European session
#property indicator_label2  "European session High; European session Low"
#property indicator_type2   DRAW_FILLING
#property indicator_color2  Lavender
#property indicator_style2  STYLE_SOLID
#property indicator_width2  1
//---- plot The American session
#property indicator_label3  "American session"
#property indicator_type3   DRAW_FILLING
#property indicator_color3  PaleGreen
#property indicator_style3  STYLE_SOLID
#property indicator_width3  1

double      AsiaHigh[];
double      AsiaLow[];
double      EuropaHigh[];
double      EuropaLow[];
double      AmericaHigh[];
double      AmericaLow[];
//    Time constants are specified across Greenwich
const int   AsiaOpen=1;
const int   AsiaClose=9;
const int   AsiaOpenSummertime=2;   // The Asian session shifts
const int   AsiaCloseSummertime=10; // after the time changes
const int   EuropaOpen=10;
const int   EuropaClose=14;
const int   AmericaOpen=15;
const int   AmericaClose=19;
//    Global variable
int         ShiftTime;  //Displacement of the buffer for construction of the future sessions
double      HighForFutureSession;   // High for the future session
double      LowForFutureSession;    // Low for the future session
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
//--- Verify Time Period
   if( PeriodSeconds(_Period)>=PeriodSeconds(PERIOD_H2) )
   {
      return(-1);
   }
//--- Displacement of the buffer for construction of the future sessions
   ShiftTime=PeriodSeconds(PERIOD_D1)/PeriodSeconds(_Period);
//--- indicators
   SetIndexBuffer(0,AsiaHigh,INDICATOR_DATA);
   SetIndexBuffer(1,AsiaLow,INDICATOR_DATA);
   SetIndexBuffer(2,EuropaHigh,INDICATOR_DATA);
   SetIndexBuffer(3,EuropaLow,INDICATOR_DATA);
   SetIndexBuffer(4,AmericaHigh,INDICATOR_DATA);
   SetIndexBuffer(5,AmericaLow,INDICATOR_DATA);
   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);
   PlotIndexSetInteger(0,PLOT_SHIFT,ShiftTime);
   PlotIndexSetInteger(1,PLOT_SHIFT,ShiftTime);
   PlotIndexSetInteger(2,PLOT_SHIFT,ShiftTime);
   PlotIndexSetInteger(3,PLOT_SHIFT,ShiftTime);
   PlotIndexSetInteger(4,PLOT_SHIFT,ShiftTime);
   PlotIndexSetInteger(5,PLOT_SHIFT,ShiftTime);
//---
   return(0);
}
//+------------------------------------------------------------------+
//| 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[])
{
//--- auxiliary variables
   int  i=1;
   HighForFutureSession=MathMax(high[rates_total-1],high[rates_total-2]);
   LowForFutureSession=MathMin(low[rates_total-1],low[rates_total-2]);
   MqlDateTime time1, time2;
//--- set position for beginning
   if(prev_calculated==0)
   {
      i=ShiftTime+1;
      ArrayInitialize(AsiaHigh, 0.0);
      ArrayInitialize(AsiaLow, 0.0);
      ArrayInitialize(EuropaHigh, 0.0);
      ArrayInitialize(EuropaLow, 0.0);
      ArrayInitialize(AmericaHigh, 0.0);
      ArrayInitialize(AmericaLow, 0.0);
   }
   else
      i=prev_calculated-ShiftTime;
//--- start calculations
   while(i<rates_total)
   {
      TimeToStruct(time[i-1], time1);
      TimeToStruct(time[i], time2);
      if(time1.day!=time2.day)
      {
         DrawTimeZone(time[i],i);
      }
      i++;
   }
//--- return value of prev_calculated for next call
   return(rates_total);
}
//+--------------------------------------------------------------------+
// Summertime determination is reserved for the future calculations
//+--------------------------------------------------------------------+
bool Summertime(datetime time)
{
   if(TimeDaylightSavings()!=0)
      return(true);
   else
      return(false);
}
//+--------------------------------------------------------------------+
// Calculation and filling of buffers of time zones
//+--------------------------------------------------------------------+

void DrawTimeZone(datetime Start, int Index)
{
   int rates_total,shift,shift_end,_startIndex=Index-ShiftTime;
   double iHigh[], iLow[], HighSession, LowSession;
   datetime AsiaStart, AsiaEnd, EuropaStart, EuropaEnd, AmericaStart, AmericaEnd;
   datetime _start=Start; //+(TimeTradeServer()-TimeGMT())

// Processing of the Asian session
   AsiaStart=_start+(Summertime(Start)?AsiaOpenSummertime:AsiaOpen)*PeriodSeconds(PERIOD_H1);
   AsiaEnd=_start+(Summertime(Start)?AsiaCloseSummertime:AsiaClose)*PeriodSeconds(PERIOD_H1)-1;
   rates_total=CopyHigh(NULL,_Period,AsiaStart,AsiaEnd,iHigh);
   if(rates_total<=0)
      HighSession=HighForFutureSession;
   else
      HighSession=iHigh[ArrayMaximum(iHigh,0,rates_total)];
   rates_total=CopyLow(NULL,_Period,AsiaStart,AsiaEnd,iLow);
   if(rates_total<=0)
      LowSession=LowForFutureSession;
   else
      LowSession=iLow[ArrayMinimum(iLow,0,rates_total)];
   shift=int((AsiaStart-Start)/PeriodSeconds(_Period));
   shift_end=int((AsiaEnd-Start)/PeriodSeconds(_Period)+1);
   for(int i=shift; i<shift_end; i++)
   {
      AsiaHigh[_startIndex+i]=HighSession;
      AsiaLow[_startIndex+i]=LowSession;
   }

// Processing of the European session
   EuropaStart=_start+EuropaOpen*PeriodSeconds(PERIOD_H1);
   EuropaEnd=_start+EuropaClose*PeriodSeconds(PERIOD_H1)-1;
   rates_total=CopyHigh(NULL,_Period,EuropaStart,EuropaEnd,iHigh);
   if(rates_total<=0)
      HighSession=HighForFutureSession;
   else
      HighSession=iHigh[ArrayMaximum(iHigh,0,rates_total)];
   rates_total=CopyLow(NULL,_Period,EuropaStart,EuropaEnd,iLow);
   if(rates_total<=0)
      LowSession=LowForFutureSession;
   else
      LowSession=iLow[ArrayMinimum(iLow,0,rates_total)];
   shift=int((EuropaStart-Start)/PeriodSeconds(_Period));
   shift_end=int((EuropaEnd-Start)/PeriodSeconds(_Period)+1);
   for(int i=shift; i<shift_end; i++)
   {
      EuropaHigh[_startIndex+i]=HighSession;
      EuropaLow[_startIndex+i]=LowSession;
   }

// Processing of the American session
   AmericaStart=_start+AmericaOpen*PeriodSeconds(PERIOD_H1);
   AmericaEnd=_start+AmericaClose*PeriodSeconds(PERIOD_H1)-1;
   rates_total=CopyHigh(NULL,_Period,AmericaStart,AmericaEnd,iHigh);
   if(rates_total<=0)
      HighSession=HighForFutureSession;
   else
      HighSession=iHigh[ArrayMaximum(iHigh,0,rates_total)];
   rates_total=CopyLow(NULL,_Period,AmericaStart,AmericaEnd,iLow);
   if(rates_total<=0)
      LowSession=LowForFutureSession;
   else
      LowSession=iLow[ArrayMinimum(iLow,0,rates_total)];
   shift=int((AmericaStart-Start)/PeriodSeconds(_Period));
   shift_end=int((AmericaEnd-Start)/PeriodSeconds(_Period)+1);
   for(int i=shift; i<shift_end; i++)
   {
      AmericaHigh[_startIndex+i]=HighSession;
      AmericaLow[_startIndex+i]=LowSession;
   }
// Memory clearing
   ArrayResize(iHigh,0);
   ArrayResize(iLow,0);
}

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