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#include "sierrachart.h"

SCDLLName("Prefixer")

SCSFExport scsf_Prefixer(SCStudyInterfaceRef sc)
{
  int& MenuID = sc.GetPersistentInt(1);
  if (sc.SetDefaults)
  {
    sc.GraphName = "Drawing Prefixer";
    sc.AutoLoop = 1; //Automatic looping is enabled.
    sc.Input[0].Name = "Prefix";
    sc.Input[0].SetString("");
    sc.GraphRegion = 0;
    return;
  }
  
  
  if (sc.Index == 0)// Only do this when calculating the first bar.
  {
    // Add chart short cut menu item
    if (MenuID <= 0)
      MenuID = sc.AddACSChartShortcutMenuItem(sc.ChartNumber, "Update Drawings");

    if (MenuID < 0)
      sc.AddMessageToLog("Add ACS Chart Shortcut Menu Item failed", 1);
  }

  if (sc.MenuEventID != 0 && sc.MenuEventID == MenuID){
    int DrawingIndex = 0;
    s_UseTool DrawingObject;
    const SCString Prefix = sc.Input[0].GetString();
    while( sc.GetUserDrawnChartDrawing(sc.ChartNumber, DRAWING_HORIZONTAL_RAY , DrawingObject, DrawingIndex) )
    {
      int strLen = DrawingObject.Text.GetLength();
      const SCString curStr = DrawingObject.Text.GetSubString(strLen);
      sc.AddMessageToLog(curStr,1);
      sc.AddMessageToLog(Prefix,1);
      if(curStr!=Prefix){
        DrawingObject.Text = Prefix + " " + DrawingObject.Text;
        DrawingObject.TextAlignment = DrawingObject.TextAlignment;
        sc.UseTool(DrawingObject);
      }
      DrawingIndex++;
    }
  }
  
  if (sc.LastCallToFunction)
  {
    // Be sure to remove the menu command when study is removed
    sc.RemoveACSChartShortcutMenuItem(sc.ChartNumber, MenuID);
  }
}