//+------------------------------------------------------------------+
//|                                                 CCIFilter vX.mq4 |
//|                                                                  |                                      
//|                                                      mod by Raff |   
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Forex-TSD.com "
#property link      "http://www.forex-tsd.com/"

#property indicator_separate_window
#property indicator_buffers 7
#property indicator_color1 Gray
#property indicator_color2 Lime
#property indicator_color3 Aqua
#property indicator_color4 Gold
#property indicator_color5 Red
#property indicator_color6 OrangeRed
#property indicator_color7 LimeGreen
#property indicator_width1 3
#property indicator_width2 3
#property indicator_width3 3
#property indicator_width4 3
#property indicator_width5 3
#property indicator_width6 3
#property indicator_width7 3

//---- input parameters
extern int    CCIPeriod             = 50;
extern int    CCIPrice              = 0;
extern int    UpperTriggerLevel     = 100;
extern int    LowerTriggerLevel     = -100;
extern int    CriticalLevel         = 250;
extern bool   HISTOGRAM             = false;
extern bool   Alerts                = true;
extern string CriticalLevelAlert    = "Critical Level";
extern string ZeroBuyAlert          = "Zero Cross";
extern string ZeroSellAlert         = "Zero Cross";
extern string UpperTriggerBuyAlert  = "Upper Trigger Cross";
extern string UpperTriggerSellAlert = "Upper Trigger Cross";
extern string LowerTriggerBuyAlert  = "Lower Trigger Cross";
extern string LowerTriggerSellAlert = "Lower Trigger Cross";

//---- indicator buffers
double CCI[];
double UpBuffer1[];
double UpBuffer2[];
double DnBuffer1[];
double DnBuffer2[];
double DnArr[];
double UpArr[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
  int init()
  {
   IndicatorBuffers(7);
   
   int DrawType = DRAW_LINE;
   if (HISTOGRAM) DrawType = DRAW_HISTOGRAM;

   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID);
   SetIndexStyle(1,DrawType,STYLE_SOLID);
   SetIndexStyle(2,DrawType,STYLE_SOLID);
   SetIndexStyle(3,DrawType,STYLE_SOLID);
   SetIndexStyle(4,DrawType,STYLE_SOLID);
   SetIndexStyle(5,DRAW_ARROW);
   SetIndexArrow(5,159);
   SetIndexBuffer(5,DnArr);
   SetIndexStyle(6,DRAW_ARROW);
   SetIndexArrow(6,159);
   SetIndexBuffer(6,UpArr);

   SetIndexBuffer(0,CCI);
   SetIndexBuffer(1,UpBuffer1);
   SetIndexBuffer(2,UpBuffer2);
   SetIndexBuffer(3,DnBuffer1);
   SetIndexBuffer(4,DnBuffer2);
   SetIndexBuffer(5,DnArr);
   SetIndexBuffer(6,UpArr);
   
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
   
   string short_name;
   short_name="CCI Filter("+CCIPeriod+", "+UpperTriggerLevel+", "+LowerTriggerLevel+", "+CriticalLevel+")";
   IndicatorShortName(short_name);

   SetIndexLabel(0,"CCI");
   SetIndexLabel(1,"UpTrend");
   SetIndexLabel(2,"Mild UpTrend");
   SetIndexLabel(3,"Mild DownTrend");
   SetIndexLabel(4,"DownTrend");
   
   SetIndexDrawBegin(0,CCIPeriod);
   SetIndexDrawBegin(1,CCIPeriod);
   SetIndexDrawBegin(2,CCIPeriod);
   SetIndexDrawBegin(3,CCIPeriod);  
   SetIndexDrawBegin(4,CCIPeriod);

   return(0);
  }

//+------------------------------------------------------------------+
//| CCIFilter                                                        |
//+------------------------------------------------------------------+
int start()
  {
   int shift,trend;
   double CCI0, CCI1;
   double UpDnZero, UpDnBuffer;
   
   if (UpperTriggerLevel<0) UpperTriggerLevel=0;
   if (LowerTriggerLevel>0) UpperTriggerLevel=0;

   for(shift=Bars-CCIPeriod-1;shift>=0;shift--)
   {	
     DnArr[shift]=EMPTY_VALUE;
     UpArr[shift]=EMPTY_VALUE;
  	  CCI[shift]=EMPTY_VALUE;
	  CCI0=iCCI(NULL,0,CCIPeriod,CCIPrice,shift);
	  CCI1=iCCI(NULL,0,CCIPeriod,CCIPrice,shift+1);
  	  UpDnZero=0; UpDnBuffer=1;
     if (!HISTOGRAM) {UpDnZero=EMPTY_VALUE; UpDnBuffer=CCI0; CCI[shift]=CCI0;}
  	  UpBuffer1[shift]=UpDnZero;
  	  UpBuffer2[shift]=UpDnZero;
  	  DnBuffer1[shift]=UpDnZero;
  	  DnBuffer2[shift]=UpDnZero;

	  if (CCI0>UpperTriggerLevel)  UpBuffer1[shift]=UpDnBuffer;
	  if (CCI0>0 && CCI0<=UpperTriggerLevel) UpBuffer2[shift]=UpDnBuffer;
	  if (CCI0<0 && CCI0>=LowerTriggerLevel) DnBuffer1[shift]=UpDnBuffer;
	  if (CCI0<LowerTriggerLevel)  DnBuffer2[shift]=UpDnBuffer;

     //if (CCI0>0 && CCI1<=0) {if(!HISTOGRAM) UpArr[shift]=0; if(shift==0) Alerts(ZeroBuyAlert);}
     //if (CCI0<0 && CCI1>=0) {if(!HISTOGRAM) DnArr[shift]=0; if(shift==0) Alerts(ZeroSellAlert);}
     if (CCI0>UpperTriggerLevel && CCI1<=UpperTriggerLevel && UpperTriggerLevel>0) {if(!HISTOGRAM) UpArr[shift]=UpperTriggerLevel; if(shift==0) Alerts(UpperTriggerBuyAlert);}
     if (CCI0<UpperTriggerLevel && CCI1>=UpperTriggerLevel && UpperTriggerLevel>0) {if(!HISTOGRAM) DnArr[shift]=UpperTriggerLevel; if(shift==0) Alerts(UpperTriggerSellAlert);}
     if (CCI0>LowerTriggerLevel && CCI1<=LowerTriggerLevel && LowerTriggerLevel<0) {if(!HISTOGRAM) UpArr[shift]=LowerTriggerLevel; if(shift==0) Alerts(LowerTriggerBuyAlert);}
     if (CCI0<LowerTriggerLevel && CCI1>=LowerTriggerLevel && LowerTriggerLevel<0) {if(!HISTOGRAM) DnArr[shift]=LowerTriggerLevel; if(shift==0) Alerts(LowerTriggerSellAlert);}
     if (MathAbs(CCI0)>CriticalLevel && MathAbs(CCI1)<=CriticalLevel) {if(shift==0) Alerts(CriticalLevelAlert);}
     if (MathAbs(CCI0)<CriticalLevel && MathAbs(CCI1)>=CriticalLevel) {if(shift==0) Alerts(CriticalLevelAlert);}
	}

	return(0);	
 }

void Alerts(string AlertText)
  {
    static datetime timeprev;
    if(timeprev<iTime(NULL,0,0) && Alerts) {timeprev=iTime(NULL,0,0); Alert(AlertText," ",Symbol()," - ",Period(),"  at  ", Close[0],"  -  ", TimeToStr(CurTime(),TIME_SECONDS));}
  }

