// Copyright (c) 1995-2009 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:

//

#include "fader.h"

_LIT(CFaderName, "wsfader");

CFader* CFader::CreateL()

	{

	return new(ELeave) CFader;

	}

void CFader::ConstructL(MWsGraphicDrawerEnvironment& aEnv,const TDesC8& /*aData*/)

	{

	BaseConstructL(aEnv);

	//Default bitgdi fading parameters

	iBlackMap=128;

	iWhiteMap=255;

	}

CFader::CFader()

	{

	}

CFader::~CFader()

	{

	}

//Default fading plugin simply uses bitgdi to perform fading

void CFader::FadeArea(CFbsBitGc* aBitGc,const TRegion * aRegion)

	{

  	aBitGc->Reset();

  	aBitGc->SetFadingParameters(iBlackMap,iWhiteMap);

	aBitGc->FadeArea(aRegion);

	}

//Default fading plugin expects two TUint8's describing the black/white map 

//as possible fading parameters

void CFader::SetFadingParameters(const TDesC8& aData)

  	{

	TPckgBuf<TFadingParams> buf;

	buf.Copy(aData);

	TFadingParams parameters = buf();

	iBlackMap = parameters.blackMap;

	iWhiteMap = parameters.whiteMap;

  	}

TAny* CFader::ResolveObjectInterface(TUint aTypeId)

	{

	switch (aTypeId)

		{

		case MWsFader::EWsObjectInterfaceId:

			return static_cast<MWsFader*>(this);

		}

	return NULL;

	}

const TDesC& CFader::PluginName() const

	{

	return CFaderName;

	}