1 // Copyright (c) 2008-2009 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 //

    15 

    16 /**

    17  @file

    18  @test

    19  @internalComponent - Internal Symbian test code

    20 */

    21 

    22 #include "bufferdrawer.h"

    23 #include <s32mem.h>

    24 #include <s32strm.h>

    25 #include <fbs.h>

    26 #include <bitdev.h>

    27 #include <bitstd.h>

    28 #include <graphics/wsgraphicscontext.h>

    29 #include <graphics/wsuibuffer.h>

    30 

    31 

    32 // CWsGraphicDrawer	

    33 CWsBufferGraphicDrawer* CWsBufferGraphicDrawer::NewL()

    34 	{

    35 	return new(ELeave) CWsBufferGraphicDrawer;	

    36 	}

    37 	

    38 CWsBufferGraphicDrawer::~CWsBufferGraphicDrawer()

    39 	{

    40 	}

    41 

    42 void CWsBufferGraphicDrawer::ConstructL(MWsGraphicDrawerEnvironment& aEnv, const TGraphicDrawerId& aId, MWsClient& aOwner, const TDesC8& /*aData*/)

    43 	{

    44 	BaseConstructL(aEnv, aId, aOwner);

    45  	// default white line number

    46 	iWhiteLinePos = 0;

    47  	}

    48 

    49 void CWsBufferGraphicDrawer::HandleMessage(const TDesC8& aData)

    50 	{

    51 	TInt linePos = aData[0];

    52 	DoUpdateWhiteLinePos(linePos);

    53 	}

    54 

    55 void CWsBufferGraphicDrawer::DoUpdateWhiteLinePos(TInt aWhiteLinePos)

    56 	{

    57 	iWhiteLinePos = aWhiteLinePos;

    58 	// Invalidate the redrawing

    59 	Invalidate();

    60 	}

    61 

    62 void CWsBufferGraphicDrawer::DoDraw(MWsGc& aGc, const TRect& aRect, const TDesC8& /*aData*/) const

    63 	{

    64 	MWsGraphicsContext* context = static_cast<MWsGraphicsContext*>(aGc.ResolveObjectInterface(KMWsGraphicsContext));

    65 	

    66 	//Draw a filled rect with the chosen color

    67 	context->Push();

    68 	context->SetBrushStyle(MWsGraphicsContext::ESolidBrush);

    69 	context->SetBrushColor(KRgbBlue);

    70 	context->DrawRect(aRect);

    71 	context->Pop();

    72 	

    73 	//Obtain access to the screen/OSB buffer

    74 	MWsUiBuffer* buffer = static_cast<MWsUiBuffer*>(aGc.ResolveObjectInterface(KMWsUiBufferInterfaceId));

    75 	TAny* data;

    76 	TInt stride;

    77 	

    78 	TInt err = buffer->MapReadWrite(data, stride);

    79 	

    80 	if (err == KErrNone)

    81 		{

    82 		//Fill the chosen line with white

    83 		TUint8* scanLine = static_cast<TUint8*>(data);

    84 		scanLine += stride * iWhiteLinePos;

    85 		Mem::Fill(scanLine, stride, 0xFF);

    86 	

    87 		buffer->Unmap();

    88 		}

    89 	}