_TRO_SF_TREND

#property indicator_chart_window


double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
//---- input parameters
extern color     LineColor = DarkOrange;
extern int       AllBars=240;
extern int       BarsForFract=0;

int CurrentBar=0;
double Step=0;
int B1=-1,B2=-1;
int UpDown=0;
double P1=0,P2=0,PP=0;
int i=0,AB=300,BFF=0;
int ishift=0;
double iprice=0;
datetime T1,T2;
string TL1, TL2, MIDL, TFS;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators

   //---
//----
	
	
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
   
//----
   return(0);
  }


//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {

   
	double j;
	string temp;
   int m,s,k;
   m=Time[0]+Period()*60-CurTime();
   j=m/60.0;
   s=m%60;
   m=(m-m%60)/60;
   temp = ( m + " minutes " + s + " seconds left to bar end");
	

   
   int    counted_bars=IndicatorCounted();
//---- 
	if ((AllBars==0) || (Bars<AllBars)) AB=Bars; else AB=AllBars; //AB-êîëè÷åñòâî îáñ÷èòûâàåìûõ áàðîâ
	if (BarsForFract>0) 
		BFF=BarsForFract; 
	else
	{
		switch (Period())
		{
			case 1: BFF=12; break;
			case 5: BFF=48; break;
			case 15: BFF=24; break;
			case 30: BFF=24; break;
			case 60: BFF=12; break;
			case 240: BFF=15; break;
			case 1440: BFF=10; break;
			case 10080: BFF=6; break;
			default: return(-1); break;
		}
	}
	CurrentBar=2; //ñ÷èòàåì ñ òðåòüåãî áàðà, ÷òîáû ôðàêòàë "çàêðåïèëñÿ
	B1=-1; B2=-1; UpDown=0;
	while(((B1==-1) || (B2==-1)) && (CurrentBar<AB))
	{


		if((UpDown<1) && (CurrentBar==Lowest(Symbol(),Period(),MODE_LOW,BFF*2+1,CurrentBar-BFF))) 
		{
			if(UpDown==0) { UpDown=-1; B1=CurrentBar; P1=Low[B1]; }
			else { B2=CurrentBar; P2=Low[B2];}
		}
		if((UpDown>-1) && (CurrentBar==Highest(Symbol(),Period(),MODE_HIGH,BFF*2+1,CurrentBar-BFF))) 
		{
			if(UpDown==0) { UpDown=1; B1=CurrentBar; P1=High[B1]; }
			else { B2=CurrentBar; P2=High[B2]; }
		}
		CurrentBar++;
	}
	if((B1==-1) || (B2==-1)) { return(-1);} // Çíà÷èò íå íàøëè ôðàêòàëîâ ñðåäè 300 áàðîâ 8-)
	Step=(P2-P1)/(B2-B1);//Âû÷èñëèëè øàã, åñëè îí ïîëîæèòåëüíûé, òî êàíàë íèñõîäÿùèé
	P1=P1-B1*Step; B1=0;//ïåðåñòàâëÿåì öåíó è ïåðâûé áàð ê íóëþ
	
	ishift=0; iprice=0;
	if(UpDown==1)
	{ 
		PP=Low[2]-2*Step;
		for(i=3;i<=B2;i++) 
		{
			if(Low[i]<PP+Step*i) { PP=Low[i]-i*Step; }
		}
		if(Low[0]<PP) {ishift=0; iprice=PP;}
		if(Low[1]<PP+Step) {ishift=1; iprice=PP+Step;}
		if(High[0]>P1) {ishift=0; iprice=P1;}
		if(High[1]>P1+Step) {ishift=1; iprice=P1+Step;}
	} 
	else
	{ 
		PP=High[2]-2*Step;
		for(i=3;i<=B2;i++) 
		{
			if(High[i]>PP+Step*i) { PP=High[i]-i*Step;}
		}
		if(Low[0]<P1) {ishift=0; iprice=P1;}
		if(Low[1]<P1+Step) {ishift=1; iprice=P1+Step;}
		if(High[0]>PP) {ishift=0; iprice=PP;}
		if(High[1]>PP+Step) {ishift=1; iprice=PP+Step;}
	}
	//Òåïåðü ïåðåñòàâèì êîíå÷íóþ öåíó è áàð íà ÀÂ, ÷òîáû ëèíèè êàíàëà ðèñîâàëèñü ïîäëèííåå
	P2=P1+AB*Step;
	T1=Time[B1]; T2=Time[AB];

	//Åñëè íå áûëî ïåðåñå÷åíèÿ êàíàëà, òî 0, èíà÷å ñòàâèì ïñèñó.
	if(iprice!=0) ExtMapBuffer1[ishift]=iprice;
 
double mySlope = Step/Point ;

		//Comment(temp);
//----
   //channel distance of last/current bar
   ExtMapBuffer2[0] = NormalizeDouble(MathAbs(PP - P1)/Point,0);
   //angle of channel
   ExtMapBuffer3[0] = NormalizeDouble(-Step/Point, 2);
//----


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