/*+
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* Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies).+
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description:  Solarize provides functionality to solarize bitmap images on per channel+
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*                basis.+
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*+
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*/+
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+
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+
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#ifndef AKNSRLEFFECTPLUGINSOLARIZE_H+
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#define AKNSRLEFFECTPLUGINSOLARIZE_H+
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+
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//  INCLUDES+
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#include "AknsRlEffectPlugin.h"+
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#include <AknsRlEffect.h>+
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+
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// CONSTANTS+
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+
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// Effect plugin UID+
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const TInt KAknsRlEffectPluginSolarizeUID = 0x10204AE7;+
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+
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// Constants for parameter names+
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_LIT( KAknsRlEffectSolarizeTreshold, "t" );+
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_LIT( KAknsRlEffectSolarizeChannels, "c" );+
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_LIT( KAknsRlEffectSolarizeBlendFactor, "f" );+
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+
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// CLASS DECLARATION+
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+
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/**+
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* Solarize provides functionality to solarize bitmap images on per channel+
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* basis (e.g. you could solarize red channel only).+
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*+
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* @since 2.8+
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*/+
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NONSHARABLE_CLASS(CAknsRlEffectPluginSolarize):+
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    public CAknsRlEffectPlugin,+
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    public MAknsRlEffect+
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    {+
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    public:+
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        /**+
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        * Constants for constructing the channel bitmask.+
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        */+
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        enum TBitmask+
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            {+
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            EMaskR = 0x01,+
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            EMaskG = 0x02,+
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            EMaskB = 0x04+
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            };+
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+
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    public: // Constructors and destructor+
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+
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        /**+
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        * Default constructor.+
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        *+
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        * @since 2.8+
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        */+
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        CAknsRlEffectPluginSolarize();+
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+
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        /**+
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        * Destructor.+
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        *+
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        * @since 2.8+
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        */+
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        virtual ~CAknsRlEffectPluginSolarize();+
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+
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    public: // Implementation of CAknsEffectPlugin+
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+
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        TUid EffectUid() const;+
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        MAknsRlEffect* Effect( const TInt aInterface );+
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+
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    public: // Implementation of MAknsRlEffect+
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+
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        void InitializeL();+
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        void Release();+
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+
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        void ActivateL( MAknsRlEffectContext* aContext );+
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        void Deactivate();+
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+
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        /**+
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        * Accepted named parameters:+
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        * - "t", integer, solarize treshold+
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        * - "c", integer, selected channels+
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        * - "f", integer, normal range [0, 255], blend factor.+
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        *+
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        * Solarize treshold:+
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        * Channel values above threshold will be inverted, otherwise the+
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        * original value is used. Normal range for treshold is [0, 255] but+
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        * values outside range work as expected.+
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        *+
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        * Selected channels:+
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        * A bitmask that defines the solarized channels. The channel bits are:+
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        * - 001 red+
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        * - 010 green+
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        * - 100 blue+
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        * All combinations are supported. The bitmask can be constructed by+
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        * orring the TBitmask enumerations. Any extra bit on parameter is+
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        * ignored. All channel bits are ignored on Gray256 -> Gray256+
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        * operations+
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        *+
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        * Blend factor:+
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        * Blend factor controls the resulting opacity of the applied effect.+
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        * Normal value range is [0, 255] but values outside will also work.+
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        * - Value 0 will result in the original image.+
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        * - Value 255 will result in the filtered image.+
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        * - Values outside range [0, 255] will result in underexposure or+
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        *   overexposure.+
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        *+
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        * The default parameter values are:+
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        * - "t" = 127+
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        * - "c" = 7 (111, all channels are solarized)+
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        * - "f" = 255, full filter opacity+
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        */+
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        void SetParametersL( MAknsRlParameterIterator& aParameters );+
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+
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        /**+
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        * Supported modes:+
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        * - EColor64K -> EColor64K+
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        * - EColor16MU -> EColor16MU+
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        * - EGray256 -> EGray256+
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        *+
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        * Masks are ignored. Target layer and input layer A are both required.+
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        */+
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        void GetCapabilities( TAknsRlEffectCaps& aCaps );+
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+
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        TInt Render( const TAknsRlRenderOpParam& aParam );+
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+
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    private:+
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+
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        MAknsRlEffectContext* iContext;+
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+
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        TInt iTreshold;+
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        TInt iBlendFactor;+
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+
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        /**+
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        * Defines which channels are solarized. Values EMaskR, EMaskG+
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        * and EMaskB orred.+
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        */+
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        TUint8 iChannelMask;+
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    };+
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+
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#endif // AKNSRLEFFECTPLUGINSOLARIZE_H+
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+
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// End of File+
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