// Copyright (c) 2008-2009 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:

//

/**

 @file

 @test

 @internalComponent - Internal Symbian test code

*/

#include "bufferdrawer.h"

#include <s32mem.h>

#include <s32strm.h>

#include <fbs.h>

#include <bitdev.h>

#include <bitstd.h>

#include <graphics/wsgraphicscontext.h>

#include <graphics/wsuibuffer.h>

// CWsGraphicDrawer	

CWsBufferGraphicDrawer* CWsBufferGraphicDrawer::NewL()

	{

	return new(ELeave) CWsBufferGraphicDrawer;	

	}

CWsBufferGraphicDrawer::~CWsBufferGraphicDrawer()

	{

	}

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

	{

	BaseConstructL(aEnv, aId, aOwner);

 	// default white line number

	iWhiteLinePos = 0;

 	}

void CWsBufferGraphicDrawer::HandleMessage(const TDesC8& aData)

	{

	TInt linePos = aData[0];

	DoUpdateWhiteLinePos(linePos);

	}

void CWsBufferGraphicDrawer::DoUpdateWhiteLinePos(TInt aWhiteLinePos)

	{

	iWhiteLinePos = aWhiteLinePos;

	// Invalidate the redrawing

	Invalidate();

	}

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

	{

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

	//Draw a filled rect with the chosen color

	context->Push();

	context->SetBrushStyle(MWsGraphicsContext::ESolidBrush);

	context->SetBrushColor(KRgbBlue);

	context->DrawRect(aRect);

	context->Pop();

	//Obtain access to the screen/OSB buffer

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

	TAny* data;

	TInt stride;

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

	if (err == KErrNone)

		{

		//Fill the chosen line with white

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

		scanLine += stride * iWhiteLinePos;

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

		buffer->Unmap();

		}

	}