//+------------------------------------------------------------------+
//|                                                     TmaSlope.mq4 |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2012, zznbrm"

//Edited by shahrooz "sh.sadeghi.me@gmail.com"                           
//---- indicator settings
#property indicator_separate_window
//#property  indicator_buffers 8
#property  indicator_level1 0.5
#property  indicator_level2 -0.5 
#property  indicator_buffers 3 
#property indicator_color1 Lime
#property indicator_color2 Red
#property indicator_color3 NULL


#property indicator_width1 2
#property indicator_width2 2
#property indicator_width3 NULL
#property indicator_width4 0  
#property indicator_width5 0   


//---- input parameters
extern int eintPeriod = 56;
extern double edblHigh1 = 0.5;
extern double edblLow1 = -0.5;
extern int atrPeriod = 100;


extern color      Font_Color              = White;
extern int        H_Pos               = 1;
extern int        V_Pos                = 25;
extern int        Corner                 = 3;
extern int        Font_Size               = 14;
extern int        Font_Size_text               = 11;
extern int        H_Pos_text               = 1;
extern int        V_Pos_text               = 1;
extern int Text_Corner=3;
//---- indicator buffers
double gadblUp1[];

double gadblDn1[];


double gadblSlope[];
double arrowup[];
double arrowdown[];


double TICK;
bool AdditionalDigit;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
{              
   //IndicatorBuffers( 8 );    
   IndicatorBuffers( 3 );
   IndicatorDigits( 5 );
   IndicatorShortName( "TmaSlope_Norm" );
   AdditionalDigit = MarketInfo(Symbol(), MODE_MARGINCALCMODE) == 0 && MarketInfo(Symbol(), MODE_PROFITCALCMODE) == 0 && Digits % 2 == 1;
   TICK = getTick();
      
   SetIndexBuffer( 0, gadblUp1 );    SetIndexLabel( 0, NULL );       SetIndexStyle( 0, DRAW_HISTOGRAM );
   SetIndexBuffer( 1, gadblDn1 );    SetIndexLabel( 1, NULL );       SetIndexStyle( 1, DRAW_HISTOGRAM );

   SetIndexBuffer( 2, gadblSlope );  SetIndexLabel( 5, "TMA Slope" );    SetIndexStyle( 5, DRAW_NONE );

      
   SetIndexEmptyValue( 0, 0.0 );
   SetIndexEmptyValue( 1, 0.0 );
   SetIndexEmptyValue( 2, 0.0 );


   return( 0 );
}

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

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
{
   int counted_bars = IndicatorCounted();
   if ( counted_bars < 0 ) return(-1);
   if ( counted_bars > 0 ) counted_bars--;
               
   int intLimit = MathMin( Bars - 1, Bars - counted_bars + eintPeriod );
   
   double dblTma, dblPrev;
   double atr ; 
   for( int inx = intLimit; inx >= 0; inx-- )
   {   
      //gadblTma[inx] = calcTma( inx );
      //gadblPrev[inx] = calcTma( inx+1 );
      //gadblSlope[inx] = ( gadblTma[inx] - gadblPrev[inx] ) / TICK;
      atr= iATR(NULL,0,atrPeriod,inx)*0.1;
      if (atr == 0) continue;
      dblTma = calcTma( inx );
      dblPrev = calcTma( inx+1 );
      gadblSlope[inx] = ( dblTma - dblPrev ) / atr;
      
      gadblUp1[inx] = 0.0;
   
      gadblDn1[inx] = 0.0;
 
      arrowdown[inx]=0.0;
      arrowup[inx]=0.0;
      
  
      
   
     if ( gadblSlope[inx] >= 0.0 )         gadblUp1[inx] = gadblSlope[inx];
      else                                     gadblDn1[inx] = gadblSlope[inx];
   
 //  if(gadblSlope[inx]>=0 && gadblSlope[inx]<gadblSlope[inx+1] && Close[inx]>Open[inx] ) arrowdown[inx]=gadblSlope[inx]+0.1*gadblSlope[inx]; 
 //  if(gadblSlope[inx]<0 && gadblSlope[inx]>gadblSlope[inx+1] && Close[inx]<Open[inx]&& gadblSlope[inx+2]>=gadblSlope[inx+1]) arrowup[inx]=gadblSlope[inx]+0.1*gadblSlope[inx]; 

     string tt=DoubleToStr(gadblSlope[inx],2);

    ObjectCreate("label",OBJ_LABEL,WindowFind("TmaSlope_Norm"),0,0);
    ObjectSet("label",OBJPROP_XDISTANCE,H_Pos);
    ObjectSet("label",OBJPROP_YDISTANCE,V_Pos);
    ObjectSet("label",OBJPROP_CORNER,Corner);
    ObjectSetText("label"," "+tt+" ",Font_Size,"Arial",Font_Color);
   
    string sObjName="InfoBar1";
   if (gadblSlope[0] >= edblHigh1)
      ObjectSetText(sObjName, "Buy Only", Font_Size_text, "Verdana", YellowGreen);
   
   else if (gadblSlope[0] <= edblLow1)
      ObjectSetText(sObjName, "Sell Only", Font_Size_text, "Verdana", Red);
   
   else 
      ObjectSetText(sObjName, "Ranging", Font_Size_text, "Verdana", DarkGray);
      
   
   string name1 = "InfoBar1";
   

   
   ObjectCreate(sObjName, OBJ_LABEL,WindowFind("TmaSlope_Norm"), 0, 0);
   ObjectSet(sObjName, OBJPROP_CORNER, Text_Corner);
   ObjectSet(sObjName, OBJPROP_XDISTANCE, H_Pos_text);//left to right
   ObjectSet(sObjName, OBJPROP_YDISTANCE, V_Pos_text);//top to bottom

     }
   return( 0 );
}

//+------------------------------------------------------------------+
//| getTick()                                                        |
//+------------------------------------------------------------------+
double getTick() {
    double tick = MarketInfo(Symbol(), MODE_TICKSIZE);
    if (AdditionalDigit) {
        tick *= 10;
    }    
    return (tick);
}

//+------------------------------------------------------------------+
//| calcTma()                                                        |
//+------------------------------------------------------------------+
double calcTma( int inx )
{
   double dblSum  = (eintPeriod+1)*Close[inx];
   double dblSumw = (eintPeriod+1);
   int jnx, knx;
         
   for ( jnx = 1, knx = eintPeriod; jnx <= eintPeriod; jnx++, knx-- )
   {
      dblSum  += ( knx * Close[inx+jnx] );
      dblSumw += knx;

      if ( jnx <= inx )
      {
         dblSum  += ( knx * Close[inx-jnx] );
         dblSumw += knx;
      }
   }
   
   return( dblSum / dblSumw );
}