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#include "sierrachart.h"

SCDLLName("or_b3");

SCSFExport scsf_or(SCStudyInterfaceRef sc)
{
  SCSubgraphRef op_rng_h     = sc.Subgraph[1];
  SCSubgraphRef op_rng_l     = sc.Subgraph[2];
  SCSubgraphRef op_open     = sc.Subgraph[0];
  
  SCSubgraphRef op_rng_2h     = sc.Subgraph[3];
  SCSubgraphRef op_rng_3h     = sc.Subgraph[4];
  SCSubgraphRef op_rng_5h     = sc.Subgraph[5];
  
  SCSubgraphRef op_rng_2l     = sc.Subgraph[6];
  SCSubgraphRef op_rng_3l     = sc.Subgraph[7];
  SCSubgraphRef op_rng_5l     = sc.Subgraph[8];
    
  SCInputRef     or_time     = sc.Input[0];

  if (sc.SetDefaults)
  {
    sc.GraphName       = "open range";
    sc.StudyDescription   = "open range >> beta 3 << @ganz";

    op_open.Name       = "op_rng_Open";
    op_open.DrawStyle     = DRAWSTYLE_DASH;
    op_open.PrimaryColor   = RGB(255,255,255);
    op_open.LineWidth     = 2;
    
    op_rng_l.Name       = "op_rng_low";
    op_rng_l.DrawStyle     = DRAWSTYLE_DASH;    
    op_rng_l.LineWidth     = 2;
    
    op_rng_h.Name       = "op_rng_high";
    op_rng_h.DrawStyle     = DRAWSTYLE_DASH;      
    op_rng_h.LineWidth     = 2;
    
    op_rng_h.Name       = "op_rng_high";
    op_rng_h.DrawStyle     = DRAWSTYLE_DASH;      
    op_rng_h.LineWidth     = 2;
    
    op_rng_2h.Name       = "op_rng_233";
    op_rng_2h.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_2h.LineWidth   = 2;
    
    op_rng_3h.Name       = "op_rng_382";
    op_rng_3h.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_3h.LineWidth   = 2;
    
    op_rng_5h.Name       = "op_rng_512";
    op_rng_5h.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_5h.LineWidth   = 2;
    
    op_rng_2l.Name       = "op_rng_(233)";
    op_rng_2l.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_2l.LineWidth   = 2;
    
    op_rng_3l.Name       = "op_rng_(382)";
    op_rng_3l.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_3l.LineWidth   = 2;
    
    op_rng_5l.Name       = "op_rng_(512)";
    op_rng_5l.DrawStyle   = DRAWSTYLE_DASH;      
    op_rng_5l.LineWidth   = 2;
    
    or_time.Name       = "Open range (seconds)";
    or_time.SetInt(299);
    or_time.SetIntLimits(0, 2123456789);
        
    sc.GraphRegion       = 0;    
    sc.AutoLoop       = 1;
    sc.FreeDLL         = 1; // set it to zero for high perf
    
    return;
  }
      
  SCDateTime dt_StartTime, dt_EndTime;
  
  dt_StartTime.SetDate(sc.GetTradingDayDate(sc.BaseDateTimeIn[sc.Index]));
  dt_EndTime.SetDate(sc.GetTradingDayDate(sc.BaseDateTimeIn[sc.Index]));
  
  dt_StartTime.SetTime(sc.StartTime1);
  dt_EndTime.SetTime(sc.StartTime1 + or_time.GetInt());  

  float& High     = sc.PersistVars->f1;
  float& Low       = sc.PersistVars->f2;
  float& Open      = sc.PersistVars->f3;  
  float& Close    = sc.PersistVars->f4;
  float NextOpen;
  float& OpRange    = sc.PersistVars->f5;

  sc.GetOHLCOfTimePeriod(dt_StartTime, dt_EndTime, Open, High, Low, Close, NextOpen) ;  
  
  OpRange = High - Low;
  op_open [sc.Index] = Open;
  op_rng_h[sc.Index] = High;
  op_rng_l[sc.Index] = Low;
  
  if ( Close >= Open) {    
    op_rng_2h[sc.Index] = High + OpRange*2.33;
    op_rng_3h[sc.Index] = High + OpRange*3.82;
    op_rng_5h[sc.Index] = High + OpRange*5.12;
  
    op_rng_2l[sc.Index] = High - OpRange*2.33;
    op_rng_3l[sc.Index] = High - OpRange*3.82;
    op_rng_5l[sc.Index] = High - OpRange*5.12;        
  }
  else {
    op_rng_2h[sc.Index] = Low + OpRange*2.33;
    op_rng_3h[sc.Index] = Low + OpRange*3.82;
    op_rng_5h[sc.Index] = Low + OpRange*5.12;
  
    op_rng_2l[sc.Index] = Low - OpRange*2.33;
    op_rng_3l[sc.Index] = Low - OpRange*3.82;
    op_rng_5l[sc.Index] = Low - OpRange*5.12;    
  }  
}