// 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>

 CDebugBar* CDebugBar::NewL(CScreen * aScreen,const TRect& aScreenRect,TTimeIntervalMicroSeconds32 aRefreshInterval)

 	{

 	CDebugBar* self = new(ELeave) CDebugBar(aScreen,aScreenRect);

 	CleanupStack::PushL(self);

 	self->ConstructL(aRefreshInterval);

 	CleanupStack::Pop(self);

 	return self;

 	}

 CDebugBar::~CDebugBar()

 	{

 	iScreen->ScreenDevice()->ReleaseFont(iFont);

 	delete iTimer;

 	}

 CDebugBar::CDebugBar(CScreen * aScreen,const TRect& aScreenRect) : iScreen(aScreen), iScreenRect(aScreenRect)

 	{

 	}

 void CDebugBar::ConstructL(TTimeIntervalMicroSeconds32 aRefreshInterval)

 	{

 	iTimer = CPeriodic::NewL(EPriorityNormal);

 	iTimer->Start(TTimeIntervalMicroSeconds32(3000000),aRefreshInterval,TCallBack(RedrawDebugBarCallback, this));

 	TFontSpec fspec(_L("DejaVu Sans Condensed"),9);

 	User::LeaveIfError(iScreen->ScreenDevice()->GetNearestFontToDesignHeightInPixels(iFont, fspec));

 	iBaseline = (iFont->BaselineOffsetInPixels() + iFont->AscentInPixels());

 	}

 const TRect& CDebugBar::Rect() const

 	{

 	return iScreenRect;

 	}

 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->RedrawDebugBar();

 	self->iScreen->Update(TRegionFix<1>(self->iScreenRect));

 	return ETrue;

 	}

 #include "walkwindowtree.h"	

 #include "rootwin.h"

 void CDebugBar::RedrawDebugBar() 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);

 	CFbsBitGc *gc = iScreen->ScreenGdi();

 	gc->Reset();

 	gc->SetDrawMode(CGraphicsContext::EDrawModePEN);

 	gc->SetPenColor(KRgbWhite);

 	gc->SetPenStyle(CGraphicsContext::ESolidPen);

 	gc->SetBrushStyle(CGraphicsContext::ESolidBrush);

 	gc->SetBrushColor(KRgbBlack);

 	gc->DrawRect(iScreenRect);

 	gc->UseFont(iFont);

 	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);

 	TRect textRect(iScreenRect);

 	textRect.SetHeight(textRect.Height() / 2);

 	iBuf.Format(KLine1Format,iKeyEvents,scheduler->Requests()-iPolls,wservPercent,drawingPercent,reclaimedPercent);

 	gc->DrawText(iBuf,textRect,iBaseline);

 	textRect.Move(TPoint(0,textRect.Height()));

 	iBuf.Format(KLine2Format,redrawStoreWalker.iTotalSize, updatesPerSecond, pixelsPerSecond);

 	gc->DrawText(iBuf,textRect,iBaseline);

 	gc->DiscardFont();

 	iLastTotal=scheduler->Total();

 	iLastIdle=scheduler->Idle();

 	iLastDrawing=scheduler->Drawing();

 	iLastReclaimedIdleTime=scheduler->ReclaimedIdleTime();

 	}

 void CDebugBar::OnKeyEvent()

 	{

 	iKeyEvents++;

 	RedrawDebugBar();

 	iScreen->Update(TRegionFix<1>(iScreenRect));

 	}