sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Debug bar
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "debugbar.h"
sl@0: #include <bitstd.h>
sl@0: #include "screen.h"
sl@0: #include "wstop.h"
sl@0: #include <e32cmn.h>
sl@0: 
sl@0: 
sl@0: CDebugBar* CDebugBar::NewL(CScreen * aScreen,const TRect& aScreenRect,TTimeIntervalMicroSeconds32 aRefreshInterval)
sl@0: 	{
sl@0: 	CDebugBar* self = new(ELeave) CDebugBar(aScreen,aScreenRect);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aRefreshInterval);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CDebugBar::~CDebugBar()
sl@0: 	{
sl@0: 	iScreen->ScreenDevice()->ReleaseFont(iFont);
sl@0: 	delete iTimer;
sl@0: 	}
sl@0: 	
sl@0: CDebugBar::CDebugBar(CScreen * aScreen,const TRect& aScreenRect) : iScreen(aScreen), iScreenRect(aScreenRect)
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: void CDebugBar::ConstructL(TTimeIntervalMicroSeconds32 aRefreshInterval)
sl@0: 	{
sl@0: 	iTimer = CPeriodic::NewL(EPriorityNormal);
sl@0: 	iTimer->Start(TTimeIntervalMicroSeconds32(3000000),aRefreshInterval,TCallBack(RedrawDebugBarCallback, this));
sl@0: 	TFontSpec fspec(_L("DejaVu Sans Condensed"),9);
sl@0: 	User::LeaveIfError(iScreen->ScreenDevice()->GetNearestFontToDesignHeightInPixels(iFont, fspec));
sl@0: 	iBaseline = (iFont->BaselineOffsetInPixels() + iFont->AscentInPixels());
sl@0: 	}
sl@0: 	
sl@0: const TRect& CDebugBar::Rect() const
sl@0: 	{
sl@0: 	return iScreenRect;
sl@0: 	}
sl@0: 
sl@0: TBool CDebugBar::RedrawDebugBarCallback(TAny * aAny)
sl@0: 	{
sl@0: 	CDebugBar* self = reinterpret_cast<CDebugBar *>(aAny);
sl@0: 	self->iPolls++; //minus-out the events which cause this debug-bar to 'tick'
sl@0: 	self->RedrawDebugBar();
sl@0: 	self->iScreen->Update(TRegionFix<1>(self->iScreenRect));
sl@0: 	return ETrue;
sl@0: 	}
sl@0: 	
sl@0: #include "walkwindowtree.h"	
sl@0: #include "rootwin.h"
sl@0: void CDebugBar::RedrawDebugBar() const
sl@0: 	{
sl@0: 	_LIT(KLine1Format, "KeyEvents %d; %Ld; WServ %.1f%%; Drawing %.1f%%; Reclaimed %.1f%%");
sl@0: 	_LIT(KLine2Format, "RedrawStore size %d3B; updates %d/s, pixels %d/s"); 
sl@0: 	CWsActiveScheduler* scheduler = CWsActiveScheduler::Static();
sl@0: 	TInt updatesPerSecond;
sl@0: 	TInt64 pixelsPerSecond;
sl@0: 	scheduler->DrawStats(updatesPerSecond,pixelsPerSecond,2);
sl@0: 	CFbsBitGc *gc = iScreen->ScreenGdi();
sl@0: 	gc->Reset();
sl@0: 	gc->SetDrawMode(CGraphicsContext::EDrawModePEN);
sl@0: 	gc->SetPenColor(KRgbWhite);
sl@0: 	gc->SetPenStyle(CGraphicsContext::ESolidPen);
sl@0: 	gc->SetBrushStyle(CGraphicsContext::ESolidBrush);
sl@0: 	gc->SetBrushColor(KRgbBlack);
sl@0: 	gc->DrawRect(iScreenRect);
sl@0: 	gc->UseFont(iFont);
sl@0: 	
sl@0: 	TInt64 wserv = scheduler->Total() - iLastTotal;
sl@0: 	TInt64 nonwserv = scheduler->Idle() - iLastIdle;
sl@0: 	TInt64 drawing = scheduler->Drawing() - iLastDrawing;
sl@0: 	TInt64 reclaimed = scheduler->ReclaimedIdleTime() - iLastReclaimedIdleTime;
sl@0: 	TReal wservPercent =  wserv+nonwserv? ((TReal)wserv / (TReal)(wserv + nonwserv)) * 100.0 : 0.0 ;
sl@0: 	TReal drawingPercent = wserv? ((TReal)drawing / (TReal)wserv) * 100.0: 0 ;
sl@0: 	TReal reclaimedPercent = wserv+nonwserv? ((TReal)reclaimed / (TReal)(wserv + nonwserv)) * 100.0: 100.0 ;
sl@0: 	
sl@0: 	TWalkWindowTreeRedrawStoreSize redrawStoreWalker;
sl@0: 	iScreen->RootWindow()->WalkWindowTree(redrawStoreWalker, EWalkChildrenAndBehind);
sl@0: 	
sl@0: 	TRect textRect(iScreenRect);
sl@0: 	textRect.SetHeight(textRect.Height() / 2);
sl@0: 	iBuf.Format(KLine1Format,iKeyEvents,scheduler->Requests()-iPolls,wservPercent,drawingPercent,reclaimedPercent);
sl@0: 	gc->DrawText(iBuf,textRect,iBaseline);
sl@0: 	
sl@0: 	textRect.Move(TPoint(0,textRect.Height()));
sl@0: 	iBuf.Format(KLine2Format,redrawStoreWalker.iTotalSize, updatesPerSecond, pixelsPerSecond);
sl@0: 	gc->DrawText(iBuf,textRect,iBaseline);
sl@0: 	
sl@0: 	gc->DiscardFont();
sl@0: 	
sl@0: 	iLastTotal=scheduler->Total();
sl@0: 	iLastIdle=scheduler->Idle();
sl@0: 	iLastDrawing=scheduler->Drawing();
sl@0: 	iLastReclaimedIdleTime=scheduler->ReclaimedIdleTime();
sl@0: 	}
sl@0: 
sl@0: void CDebugBar::OnKeyEvent()
sl@0: 	{
sl@0: 	iKeyEvents++;
sl@0: 	RedrawDebugBar();
sl@0: 	iScreen->Update(TRegionFix<1>(iScreenRect));
sl@0: 	}
sl@0: