OnChart_Rsi

//+------------------------------------------------------------------+
//|                                                  OnChart Rsi.mq4 |
//|                                                           mladen |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "mladen"
#property link      ""
//----
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 DarkSlateGray
#property indicator_color2 DarkSlateGray
#property indicator_color3 DarkSlateGray
#property indicator_color4 DarkOrange
#property indicator_width4 2
#property indicator_style1 STYLE_DOT
//---- parameters
extern int RSIPeriod   =14;
extern int RSIPriceType= 0;
extern int maPeriod    =20;
extern int maMethod   =1;
extern int maPrice    =0;
extern int overBought  =70;
extern int overSold    =30;
extern string timeFrame="Current time frame";
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
datetime RTimeArray[];
datetime TTimeArray[];
int    TimeFrame;
int    atrTimeFrame;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int init()
  {
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexBuffer(3,ExtMapBuffer4);
//----
   TimeFrame=stringToTimeFrame(timeFrame);
   atrTimeFrame=PERIOD_D1;
   if (TimeFrame>=atrTimeFrame)
      switch(TimeFrame)
        {
         case PERIOD_D1: atrTimeFrame=PERIOD_W1; break;
         default:        atrTimeFrame=PERIOD_MN1;
        }
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   double maValue;
   double avgRange;
   double rsiValue;
   int    counted_bars=IndicatorCounted();
   int    limit;
   int    i,r,y;
//----
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//----
   ArrayCopySeries(RTimeArray ,MODE_TIME ,NULL,atrTimeFrame);
   ArrayCopySeries(TTimeArray ,MODE_TIME ,NULL,TimeFrame);
//----
   for(i=0,r=0,y=0;i<limit;i++)
     {
      if(Time[i]<RTimeArray[r]) r++;
      if(Time[i]<TTimeArray[y]) y++;
      avgRange        =iATR(NULL,atrTimeFrame,maPeriod,r);
      maValue         =iMA(NULL,TimeFrame,maPeriod,0,maMethod,maPrice,y);
      rsiValue        =iRSI(NULL,TimeFrame,RSIPeriod,RSIPriceType,y);
      ExtMapBuffer1[i]=maValue;
      ExtMapBuffer2[i]=maValue+(avgRange*(overBought-50)/100);
      ExtMapBuffer3[i]=maValue-(avgRange*(50-  overSold)/100);
      ExtMapBuffer4[i]=maValue+avgRange*(rsiValue-50)/100;
     }
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int stringToTimeFrame(string tfs)
  {
   int tf=0;
   tfs=StringUpperCase(tfs);
   if (tfs=="M1" || tfs=="1")     tf=PERIOD_M1;
   if (tfs=="M5" || tfs=="5")     tf=PERIOD_M5;
   if (tfs=="M15"|| tfs=="15")    tf=PERIOD_M15;
   if (tfs=="M30"|| tfs=="30")    tf=PERIOD_M30;
   if (tfs=="H1" || tfs=="60")    tf=PERIOD_H1;
   if (tfs=="H4" || tfs=="240")   tf=PERIOD_H4;
   if (tfs=="D1" || tfs=="1440")  tf=PERIOD_D1;
   if (tfs=="W1" || tfs=="10080") tf=PERIOD_W1;
   if (tfs=="MN" || tfs=="43200") tf=PERIOD_MN1;
   if (tf<Period()) tf=Period();
   return(tf);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
string StringUpperCase(string str)
  {
   string   s=str;
   int      length=StringLen(str) - 1;
   int      Char;
//----
   while(length>=0)
     {
      Char=StringGetChar(s, length);
//----
      if((Char > 96 && Char < 123) || (Char > 223 && Char < 256))
         s=StringSetChar(s, length, Char - 32);
      else
         if(Char > -33 && Char < 0)
            s=StringSetChar(s, length, Char + 224);
      length--;
     }
   //----
   return(s);
  }
//+------------------------------------------------------------------+