/*

* Copyright (c) 2008 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:   

*

*/

#ifndef HUIFXFILTERLAYER_H_

#define HUIFXFILTERLAYER_H_

#include "HuiFxLayer.h"

//FORWARD DECLARATIONS

class CHuiFxFilter;

class CHuiFxFilterLayer: public CHuiFxLayer

    {

public:

    IMPORT_C ~CHuiFxFilterLayer();

    IMPORT_C static CHuiFxFilterLayer* NewL(CHuiFxFilter* aFilter); // takes ownership

    IMPORT_C TBool PrepareDrawL(CHuiFxEngine& aEngine);

    IMPORT_C void Draw(CHuiFxEngine& aEngine, CHuiGc& aGc, CHuiFxRenderbuffer& aTarget, CHuiFxRenderbuffer& aSource, TBool aHasSurface);

    IMPORT_C CHuiFxFilter& Filter() const;

    IMPORT_C TBool Changed() const;

    IMPORT_C void AdvanceTime(TReal32 aElapsedTime);

    IMPORT_C TBool Margin(TMargins &m);

public: // effect cache

    IMPORT_C CHuiFxFilterLayer *CloneL() const;

    IMPORT_C void SetExtRect( TRect *aExtRect );

    IMPORT_C void SetVisual( CHuiVisual *aVisual );

    IMPORT_C void SetVisual( MHuiEffectable *aVisual );

    TBool IsFiltered() const; 

protected:

    CHuiFxFilterLayer();

    void ConstructL(CHuiFxFilter* aFilter);

private:

    CHuiFxFilter*             iFilter;

    };

#endif /*HUIFXFILTERLAYER_H_*/