1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Debug bar

    15 // 

    16 //

    17 

    18 #include "debugbar.h"

    19 #include <bitstd.h>

    20 #include "screen.h"

    21 #include "wstop.h"

    22 #include <e32cmn.h>

    23 

    24 

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

    26 	{

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

    28 	CleanupStack::PushL(self);

    29 	self->ConstructL(aRefreshInterval);

    30 	CleanupStack::Pop(self);

    31 	return self;

    32 	}

    33 

    34 CDebugBar::~CDebugBar()

    35 	{

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

    37 	delete iTimer;

    38 	}

    39 	

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

    41 	{

    42 	}

    43 	

    44 void CDebugBar::ConstructL(TTimeIntervalMicroSeconds32 aRefreshInterval)

    45 	{

    46 	iTimer = CPeriodic::NewL(EPriorityNormal);

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

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

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

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

    51 	}

    52 	

    53 const TRect& CDebugBar::Rect() const

    54 	{

    55 	return iScreenRect;

    56 	}

    57 

    58 TBool CDebugBar::RedrawDebugBarCallback(TAny * aAny)

    59 	{

    60 	CDebugBar* self = reinterpret_cast<CDebugBar *>(aAny);

    61 	self->iPolls++; //minus-out the events which cause this debug-bar to 'tick'

    62 	self->RedrawDebugBar();

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

    64 	return ETrue;

    65 	}

    66 	

    67 #include "walkwindowtree.h"	

    68 #include "rootwin.h"

    69 void CDebugBar::RedrawDebugBar() const

    70 	{

    71 	_LIT(KLine1Format, "KeyEvents %d; %Ld; WServ %.1f%%; Drawing %.1f%%; Reclaimed %.1f%%");

    72 	_LIT(KLine2Format, "RedrawStore size %d3B; updates %d/s, pixels %d/s"); 

    73 	CWsActiveScheduler* scheduler = CWsActiveScheduler::Static();

    74 	TInt updatesPerSecond;

    75 	TInt64 pixelsPerSecond;

    76 	scheduler->DrawStats(updatesPerSecond,pixelsPerSecond,2);

    77 	CFbsBitGc *gc = iScreen->ScreenGdi();

    78 	gc->Reset();

    79 	gc->SetDrawMode(CGraphicsContext::EDrawModePEN);

    80 	gc->SetPenColor(KRgbWhite);

    81 	gc->SetPenStyle(CGraphicsContext::ESolidPen);

    82 	gc->SetBrushStyle(CGraphicsContext::ESolidBrush);

    83 	gc->SetBrushColor(KRgbBlack);

    84 	gc->DrawRect(iScreenRect);

    85 	gc->UseFont(iFont);

    86 	

    87 	TInt64 wserv = scheduler->Total() - iLastTotal;

    88 	TInt64 nonwserv = scheduler->Idle() - iLastIdle;

    89 	TInt64 drawing = scheduler->Drawing() - iLastDrawing;

    90 	TInt64 reclaimed = scheduler->ReclaimedIdleTime() - iLastReclaimedIdleTime;

    91 	TReal wservPercent =  wserv+nonwserv? ((TReal)wserv / (TReal)(wserv + nonwserv)) * 100.0 : 0.0 ;

    92 	TReal drawingPercent = wserv? ((TReal)drawing / (TReal)wserv) * 100.0: 0 ;

    93 	TReal reclaimedPercent = wserv+nonwserv? ((TReal)reclaimed / (TReal)(wserv + nonwserv)) * 100.0: 100.0 ;

    94 	

    95 	TWalkWindowTreeRedrawStoreSize redrawStoreWalker;

    96 	iScreen->RootWindow()->WalkWindowTree(redrawStoreWalker, EWalkChildrenAndBehind);

    97 	

    98 	TRect textRect(iScreenRect);

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

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

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

   102 	

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

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

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

   106 	

   107 	gc->DiscardFont();

   108 	

   109 	iLastTotal=scheduler->Total();

   110 	iLastIdle=scheduler->Idle();

   111 	iLastDrawing=scheduler->Drawing();

   112 	iLastReclaimedIdleTime=scheduler->ReclaimedIdleTime();

   113 	}

   114 

   115 void CDebugBar::OnKeyEvent()

   116 	{

   117 	iKeyEvents++;

   118 	RedrawDebugBar();

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

   120 	}

   121