diff -r 000000000000 -r 5d03bc08d59c windowing/windowserver/nga/SERVER/debugbar.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/SERVER/debugbar.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,99 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Debug bar
+// 
+//
+
+#include "debugbar.h"
+#include <bitstd.h>
+#include "screen.h"
+#include "wstop.h"
+#include <e32cmn.h>
+#include "walkwindowtree.h"	
+#include "rootwin.h"
+
+CDebugBar* CDebugBar::NewL(CScreen * aScreen, TTimeIntervalMicroSeconds32 aRefreshInterval)
+	{
+	CDebugBar* self = new(ELeave) CDebugBar(aScreen);
+	CleanupStack::PushL(self);
+	self->ConstructL(aRefreshInterval);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CDebugBar::~CDebugBar()
+	{
+	delete iTimer;	
+	}
+	
+CDebugBar::CDebugBar(CScreen * aScreen) : iScreen(aScreen)
+	{
+	}
+	
+void CDebugBar::ConstructL(TTimeIntervalMicroSeconds32 aRefreshInterval)
+	{
+	iTimer = CPeriodic::NewL(EPriorityNormal);
+	iTimer->Start(TTimeIntervalMicroSeconds32(3000000),aRefreshInterval,TCallBack(RedrawDebugBarCallback, this));
+	}
+	
+TBool CDebugBar::RedrawDebugBarCallback(TAny * aAny)
+	{
+	CDebugBar* self = reinterpret_cast<CDebugBar *>(aAny);
+	self->iPolls++; //minus-out the events which cause this debug-bar to 'tick'
+	self->iScreen->ScheduleRender(0);
+	return ETrue;
+	}
+	
+void CDebugBar::DebugBarInfo(RArray<TPtrC>& aArray) const
+	{	
+	_LIT(KLine1Format, "KeyEvents %d; %Ld; WServ %.1f%%; Drawing %.1f%%; Reclaimed %.1f%%");
+	_LIT(KLine2Format, "RedrawStore size %d3B; updates %d/s, pixels %d/s"); 
+	CWsActiveScheduler* scheduler = CWsActiveScheduler::Static();
+	TInt updatesPerSecond;
+	TInt64 pixelsPerSecond;
+	scheduler->DrawStats(updatesPerSecond,pixelsPerSecond,2);
+
+	TInt64 wserv = scheduler->Total() - iLastTotal;
+	TInt64 nonwserv = scheduler->Idle() - iLastIdle;
+	TInt64 drawing = scheduler->Drawing() - iLastDrawing;
+	TInt64 reclaimed = scheduler->ReclaimedIdleTime() - iLastReclaimedIdleTime;
+	TReal wservPercent =  wserv+nonwserv? ((TReal)wserv / (TReal)(wserv + nonwserv)) * 100.0 : 0.0 ;
+	TReal drawingPercent = wserv? ((TReal)drawing / (TReal)wserv) * 100.0: 0 ;
+	TReal reclaimedPercent = wserv+nonwserv? ((TReal)reclaimed / (TReal)(wserv + nonwserv)) * 100.0: 100.0 ;
+		
+	TWalkWindowTreeRedrawStoreSize redrawStoreWalker;
+	iScreen->RootWindow()->WalkWindowTree(redrawStoreWalker, EWalkChildrenAndBehind);
+		
+	iTextLine0.Format(KLine1Format,iKeyEvents,scheduler->Requests()-iPolls,wservPercent,drawingPercent,reclaimedPercent);
+	iTextLine1.Format(KLine2Format,redrawStoreWalker.iTotalSize, updatesPerSecond, pixelsPerSecond);
+		
+	iLastTotal=scheduler->Total();
+	iLastIdle=scheduler->Idle();
+	iLastDrawing=scheduler->Drawing();
+	iLastReclaimedIdleTime=scheduler->ReclaimedIdleTime();	
+			
+	aArray.Reset();
+	TPtrC ptr(iTextLine0);
+	aArray.Append(ptr);
+	ptr.Set(iTextLine1);
+	aArray.Append(ptr);	
+	}
+
+void CDebugBar::OnKeyEvent()
+	{
+	iKeyEvents++;
+	iScreen->ScheduleRender(0);
+	}
+
+