1 // Copyright (c) 1995-2009 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 #include "fader.h"

    17 

    18 _LIT(CFaderName, "wsfader");

    19     

    20 CFader* CFader::CreateL()

    21 	{

    22 	return new(ELeave) CFader;

    23 	}

    24 	

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

    26 	{

    27 	BaseConstructL(aEnv);

    28 	//Default bitgdi fading parameters

    29 	iBlackMap=128;

    30 	iWhiteMap=255;

    31 	}

    32 	

    33 CFader::CFader()

    34 	{

    35 	}

    36 	

    37 CFader::~CFader()

    38 	{

    39 	}

    40 

    41 //Default fading plugin simply uses bitgdi to perform fading

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

    43 	{

    44   	aBitGc->Reset();

    45   	aBitGc->SetFadingParameters(iBlackMap,iWhiteMap);

    46 	aBitGc->FadeArea(aRegion);

    47 	}

    48 	

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

    50 //as possible fading parameters

    51 void CFader::SetFadingParameters(const TDesC8& aData)

    52   	{

    53 	TPckgBuf<TFadingParams> buf;

    54 	buf.Copy(aData);

    55 	TFadingParams parameters = buf();

    56 

    57 	iBlackMap = parameters.blackMap;

    58 	iWhiteMap = parameters.whiteMap;

    59   	}

    60 

    61 TAny* CFader::ResolveObjectInterface(TUint aTypeId)

    62 	{

    63 	switch (aTypeId)

    64 		{

    65 		case MWsFader::EWsObjectInterfaceId:

    66 			return static_cast<MWsFader*>(this);

    67 		}

    68 

    69 	return NULL;

    70 	}

    71 

    72 const TDesC& CFader::PluginName() const

    73 	{

    74 	return CFaderName;

    75 	}