/*+
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* Copyright (c) 2002 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:  Defines a concrete public class +
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*                CAknsLayeredBackgroundControlContext.+
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*+
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*/+
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+
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+
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#ifndef AKNSLAYEREDBACKGROUNDCONTROLCONTEXT_H+
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#define AKNSLAYEREDBACKGROUNDCONTROLCONTEXT_H+
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+
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//  INCLUDES+
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#include <AknsBasicBackgroundControlContext.h>+
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+
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// CLASS DECLARATION+
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+
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/**+
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*  Implementation of a control context that provides one or more layered+
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*  backgrounds with their layout rectangles.+
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*+
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*  This is a public class with exported functions.+
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*  The class is not intended for derivation outside the library.+
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*+
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*  @lib AknSkins.lib+
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*+
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*  @since 2.0+
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*/+
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NONSHARABLE_CLASS(CAknsLayeredBackgroundControlContext) : +
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    public CAknsBasicBackgroundControlContext+
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    {+
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    public:  // Constructors and destructor+
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        +
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        /**+
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        * Two-phased constructor.+
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        *+
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        * @since 2.0+
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        *+
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        * @param aImageID Item ID of the first background bitmap.+
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        *+
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        * @param aRect Rectangle where the first bitmap should be laid out.+
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        *+
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        * @param aParentAbsolute ETrue if parent absolute layout should be+
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        *   used, EFalse otherwise. If a parent absolute layout is used,+
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        *   the parent position must be set and updated using SetParentPos.+
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        *+
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        * @param aNumberOfLayers Total number of layers as an integer.+
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        *   This must be 1 or more.+
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        *+
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        * @return Newly constructed object.+
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        */+
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        IMPORT_C static CAknsLayeredBackgroundControlContext* NewL(+
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            const TAknsItemID& aImageID, const TRect& aRect, +
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            const TBool aParentAbsolute, const TInt aNumberOfLayers );+
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        +
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        /**+
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        * Destructor.+
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        */+
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        virtual ~CAknsLayeredBackgroundControlContext();+
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+
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    public: // New functions+
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        +
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        /**+
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        * Sets the item ID of the specified layer.+
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        *+
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        * @since 2.0+
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        *+
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        * @param aLayer Index of the layer, where 0 is the first one.+
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        *   The index must be less than aNumberOfLayers given to @c NewL().+
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        *+
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        * @param aID Item ID of the image.+
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        */+
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        IMPORT_C void SetLayerImage( const TInt aLayer, +
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            const TAknsItemID& aID );+
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+
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        /**+
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        * Sets the layout rectangle of the specified layer.+
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        *+
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        * @since 2.0+
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        *+
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        * @param aLayer Index of the layer, where 0 is the first one.+
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        *   The index must be less than aNumberOfLayers given to @c NewL().+
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        *+
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        * @param aRect Rectangle where the image should be laid out.+
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        */+
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        IMPORT_C void SetLayerRect( const TInt aLayer, +
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            const TRect& aRect );+
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+
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    public: // From MAknsControlContext+
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+
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        /**+
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        * @copydoc MAknsControlContext::IsCompatibleWithType+
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        */+
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        TBool IsCompatibleWithType( const TAknsControlContextType aType ) const;+
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+
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    protected:+
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+
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        /**+
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        * C++ constructor.+
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        */+
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        CAknsLayeredBackgroundControlContext();+
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+
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        /**+
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        * Symbian 2nd phase constructor.+
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        */+
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        void ConstructL( const TRect& aRect, const TBool aParentAbsolute,+
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            const TAknsItemID& aImageID, const TInt aNumberOfLayers );+
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    +
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    protected:  // Data+
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        +
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        /**+
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        * Array of layered layouts.+
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        */+
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        TAknsBackground* iLayoutArray;+
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+
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        /**+
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        * Size of the layer array.+
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        */+
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        TInt iLayoutArraySize;+
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+
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    };+
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+
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#endif      // AKNSLAYEREDBACKGROUNDCONTROLCONTEXT_H+
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            +
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// End of File+
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