Need help on Custom Listbox using custom Itemdrawer

I have downloaded the multilist example of dreambox and am trying to add a custom Item drawer to it to extend its functionality with a custom itemdrawer class .
?????????????????

void CDreamColumnListBoxSub::ConstructL(CDreamColumnListBox* aParent,TInt aFlags,const CFont* aFont) {
////////////////////////////////////////////////////////////For some instance this line refuses to compile////////////////////////////
  CEikColumnListBox::ConstructL(aParent,aFlags,aFont);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  iParent=aParent;
CreateItemDrawerL();

}

void CDreamColumnListBoxSub::HandleScrollEventL(CEikScrollBar* aScrollBar, TEikScrollEvent aEventType) {
  CEikColumnListBox::HandleScrollEventL(aScrollBar,aEventType);

  // now report this scroll event "up" to the parent list box so that
  // the header can be "scrolled as well
  iParent->HandleScrollEventL(aScrollBar,aEventType);
}
void CDreamColumnListBoxSub::CreateItemDrawerL()
	{ 
//////////////////[="Red"][="3"]Kern Exec 3 Panic Error after this line[/][/]//////////////////
	iItemDrawer = new (ELeave) CMultiColumnItemDrawer(Model(),iListFont,CColumnListBoxData::NewL(),this);
////////////////////////////////////////////////////////
	}

#ifndef MULTICOLUMNITEMDRAWER_H_
#define MULTICOLUMNITEMDRAWER_H_

#include <eikclb.h>
#include <eikclbd.h>
#include <eiklbm.h> 
#include  <gdi.h>
#include <e32def.h>
#include <e32std.h>

#include "CDreamColumnListBoxSub.h"
//FORWARD DECLARATION
class CDreamColumnListBoxSub;
class CFont;
//CLASS DECLARATION
class CMultiColumnItemDrawer : public CColumnListBoxItemDrawer
{
public:

    CMultiColumnItemDrawer(MTextListBoxModel *aTextListBoxModel, const CFont *aFont,
    		CColumnListBoxData *aColumnData, CDreamColumnListBoxSub * aListBox);
   virtual ~CMultiColumnItemDrawer();
   
private: // CListItemDrawer
void DrawActualItem(TInt aItemIndex, const TRect& aActualItemRect,TBool aItemIsCurrent,
		TBool aViewIsEmphasized, TBool aViewIsDimmed,TBool aItemIsSelected) const;

private:
     CDreamColumnListBoxSub* iListBox;
     //const CFont * iFont;
     TInt iCurPos;  // starting position for the next column, and at the
     // same time total width of the control
     TInt iCurOffset;
};

#endif /*MULTICOLUMNITEMDRAWER_H_*/

#include "MultiColumnItemDrawer.h"

 CMultiColumnItemDrawer::CMultiColumnItemDrawer(MTextListBoxModel *aTextListBoxModel, const CFont *aFont, CColumnListBoxData *aColumnData,  CDreamColumnListBoxSub * aListBox)
:CColumnListBoxItemDrawer(aTextListBoxModel,aFont, aColumnData),
iListBox(aListBox)
{
iGc = &CCoeEnv::Static()->SystemGc();
SetGc(iGc);
//iFont=aFont;
iCurPos=0;  // starting position for the next column, and at the
// same time total width of the control
iCurOffset=0;
}

 CMultiColumnItemDrawer::~CMultiColumnItemDrawer()
{
}
 
void CMultiColumnItemDrawer::DrawActualItem(TInt aItemIndex,
        const TRect& aActualItemRect, TBool /*aItemIsCurrent*/,
        TBool /*aViewIsEmphasized*/, TBool /*aViewIsDimmed*/,
        TBool aItemIsSelected) const
        {
        // Sets all the attributes, like font, text color and background color.
       const CFont* iFont = CEikonEnv::Static()->NormalFont();
        iGc->UseFont(iFont);
        iGc->SetPenColor(iTextColor);
        iGc->SetPenStyle(CGraphicsContext::ESolidPen);
        if(aItemIsSelected)
        iGc->SetBrushColor(TRgb(105,215,215));
        else
        iGc->SetBrushColor(TRgb(215,0,0));
        iGc->SetBrushStyle(CGraphicsContext::ESolidBrush);
        iGc->DrawRect(aActualItemRect);
        // Draws the item text.
        TPtrC itemText = iListBox->Model()->ItemText(aItemIndex);            
        TInt tabPosition1 = itemText.Locate('\t');
        iGc->SetPenColor(KRgbGray);//itemText.Mid(0,tabPosition1)
//        HBufC text=;
//        text.Copy(itemText.Mid(0,tabPosition1),itemText.Length()); 
        TInt start=0;
        TInt width=20;//font.TextWidthInPixels(text);
        TRect textRect1 =TRect(aActualItemRect.iTl.iX,aActualItemRect.iTl.iY+8,width,aActualItemRect.iBr.iY-3);
        TInt baseline1 =(textRect1.iBr.iY - textRect1.iTl.iY - iFont->HeightInPixels()) / 2 + iFont->AscentInPixels();
        iGc->DrawText(itemText.Mid(0,tabPosition1), textRect1, baseline1,CGraphicsContext::ELeft, 1);
        TInt tabPosition2 = itemText.Mid(tabPosition1 + 1).Locate('\t');
        iGc->SetPenColor(KRgbBlue);
        start=width+2;
        width=100;
        TRect textRect2 =TRect(aActualItemRect.iTl.iX+start,aActualItemRect.iTl.iY+8,aActualItemRect.iTl.iX+start+width,aActualItemRect.iBr.iY-3);
        TInt baseline2 =(textRect2.iBr.iY - textRect2.iTl.iY - iFont->HeightInPixels()) / 2 + iFont->AscentInPixels();
        iGc->DrawText(itemText.Mid(tabPosition1+1,tabPosition2), textRect2, baseline2,CGraphicsContext::ELeft, 1);
//        if (tabPosition2 >= 0)
//           {
//           // We need to add tabPosition1 because the return value of
//           // Locate() is relative to tabPosition1.
//           tabPosition2 += tabPosition1 + 1;
//           }
//        
////        TInt baseline = (aActualItemRect.Height() - iFont->HeightInPixels()) / 2
//                                + iFont->AscentInPixels();
//        iGc->DrawText(itemText, aActualItemRect, baseline);
        }