// 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;

 	}