//+------------------------------------------------------------------+
//|                                                ShadowCandles.mq4 |
//|                            Copyright © 2009, ПавелИванович (api) |
//|                                              p231970@hotmail.com |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, ПавелИванович (api)"
#property link      "p231970@hotmail.com"

#property indicator_chart_window
//---- input parameters
extern string           strSource="";
extern ENUM_TIMEFRAMES  iPeriod=PERIOD_H4;
extern int              iNumCandles=100;
extern color            BullCandle=clrLightSkyBlue;
extern color            BearCandle=clrSandyBrown;
extern color            BullShadow=clrBlue;
extern color            BearShadow=clrOrange;

double data[][6];
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   for(int i=0;i<iNumCandles;i++)
     {
      ObjectDelete("ShadowCandle"+(string)i);
      ObjectDelete("ShadowCandleShadow"+(string)i);
     }
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   if(iPeriod<=Period()) return(0);
   int res;
   if(StringLen(strSource)==0)
     {
      res=ArrayCopyRates(data,NULL,iPeriod);
     }
   else
     {
      res=ArrayCopyRates(data,strSource,iPeriod);
     }
   for(int i=0;i<iNumCandles;i++)
     {
      if(i>0) data[i][5]=data[i-1][0]-60*Period();
      else data[0][5]=data[0][0]+60*(iPeriod-Period());
      DrawCandle(i);
     }
  return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void DrawCandle(int bar)
  {
   string name1 = "ShadowCandleShadow"+(string)bar;
   string name2 = "ShadowCandle"+(string)bar;
   if(!ObjectCreate(name1,OBJ_RECTANGLE,0,(datetime)data[bar][0],data[bar][2],(datetime)data[bar][0],data[bar][3]))
     {
      ObjectSet(name1,OBJPROP_TIME1,data[bar][0]);
      ObjectSet(name1,OBJPROP_TIME2,data[bar][5]);
      ObjectSet(name1,OBJPROP_PRICE1,data[bar][2]);
      ObjectSet(name1,OBJPROP_PRICE2,data[bar][3]);
     }
   ObjectSet(name1,OBJPROP_BACK,false);
   if(!ObjectCreate(name2,OBJ_RECTANGLE,0,(datetime)data[bar][0],data[bar][1],(datetime)data[bar][0],data[bar][4]))
     {
      ObjectSet(name2,OBJPROP_TIME1,data[bar][0]);
      ObjectSet(name2,OBJPROP_TIME2,data[bar][5]);
      ObjectSet(name2,OBJPROP_PRICE1,data[bar][1]);
      ObjectSet(name2,OBJPROP_PRICE2,data[bar][4]);
     }
   ObjectSet(name2,OBJPROP_BACK,true);
   if(data[bar][1]<data[bar][4])
     {
      ObjectSet(name1,OBJPROP_COLOR,BullShadow);
      ObjectSet(name2,OBJPROP_COLOR,BullCandle);
     }
   else
     {
      ObjectSet(name1,OBJPROP_COLOR,BearShadow);
      ObjectSet(name2,OBJPROP_COLOR,BearCandle);
     }
  }
//+------------------------------------------------------------------+