/*

* 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 HUIEFFECTABLE_H_

#define HUIEFFECTABLE_H_

class THuiRealRect;

class CHuiFxEffect;

class CHuiGc;

class MHuiEffectable

    {

public:

    virtual ~MHuiEffectable() { }

    virtual void EffectSetEffect(CHuiFxEffect* aEffect)=0;

    virtual TReal32 EffectOpacity() const=0;

    // Sets the effect opacity to be given value if bigger than current. Use aReplace to set any value.

    // This can be used to evaluate the greatest opacity of all effect layers for this effect, so that

    // drawing can determine if effect as a whole will hide the effected visual or not

    virtual void EffectSetOpacityAdditive(TReal32 aOpacity, TBool aReplace)=0;

    virtual void EffectDrawSelf( CHuiGc &aGc, const TRect & aDisplayRect) const=0;

    virtual THuiRealRect EffectDisplayRect() const __SOFTFP=0;

    virtual void SetLoadingEffect(TBool aLoading)=0;

    virtual TBool EffectReadyToDrawNextFrame() const = 0;

    };

#endif