/*

* Copyright (c) 2002 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:  Defines a public class CAknsBasicBackgroundControlContext.

*

*/

#ifndef AKNSBASICBACKGROUNDCONTROLCONTEXT_H

#define AKNSBASICBACKGROUNDCONTROLCONTEXT_H

//  INCLUDES

#include <AknsControlContext.h>

// FORWARD DECLARATIONS

class TAknsBackground;

// CLASS DECLARATION

/**

*  Implementation of a control context that provides a layout background with

*  a background bitmap and its layout rectangle.

*

*  This is a public class with exported functions.

*  The class is not intended for derivation outside the library.

*

*  @lib AknSkins.lib

*

*  @since 2.0

*/

NONSHARABLE_CLASS(CAknsBasicBackgroundControlContext) : public CBase, 

    public MAknsControlContext

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        *

        * @since 2.0

        *

        * @param aImageID Item ID of the background bitmap.

        *

        * @param aRect Rectangle where the bitmap should be laid out.

        *

        * @param aParentAbsolute ETrue if parent absolute layout should be

        *   used, EFalse otherwise. If a parent absolute layout is used,

        *   the parent position must be set and updated using SetParentPos.

        *

        * @return Newly constructed object.

        */

        IMPORT_C static CAknsBasicBackgroundControlContext* NewL(

            const TAknsItemID& aImageID, const TRect& aRect, 

            TBool aParentAbsolute );

        /**

        * Destructor.

        */

        virtual ~CAknsBasicBackgroundControlContext();

    public: // New functions

        /**

        * Sets the item ID of the background bitmap.

        *

        * @since 2.0

        *

        * @param aID Item ID of the bitmap.

        */

        IMPORT_C void SetBitmap( const TAknsItemID& aID );

        /**

        * Sets the layout rectangle of the bitmap.

        *

        * @since 2.0

        *

        * @param aRect Rectangle where the bitmap should be laid out.

        */

        IMPORT_C void SetRect( const TRect& aRect );

        /**

        * Sets the parent position for the layout. This is only

        * used if parent absolute layout was enabled during construction.

        *

        * @since 2.0

        *

        * @param aPos Parent position in screen relative coordinates.

        */

        IMPORT_C void SetParentPos( const TPoint& aPos );

        /**

        * Sets the parent context (drawn beneath the context itself).

        * No ownership is claimed. The parent context object must be

        * valid as long as it is set as parent context.

        *

        * @since 2.6

        *

        * @param aParentContext Pointer to the parent context, or

        *   @c NULL (default value) if none used.

        */

        IMPORT_C void SetParentContext( MAknsControlContext* aParentContext );

    public: // Functions from MAknsControlContext

        /**

        * @copydoc MAknsControlContext::SupplySkinParameter

        */

        TInt SupplySkinParameter( TAknsCCParameter aParam );

        /**

        * @copydoc MAknsControlContext::SupplySkinObject

        */

        TAny* SupplySkinObject( TAknsCCObject aObject );

        /**

        * @copydoc MAknsControlContext::IsCompatibleWithType

        */

        TBool IsCompatibleWithType( const TAknsControlContextType aType ) const;

    protected:

        /**

        * C++ constructor.

        */

        CAknsBasicBackgroundControlContext();

        /**

        * Symbian 2nd phase constructor.

        */

        void ConstructL( const TRect& aRect, TBool aParentAbsolute,

            const TAknsItemID& aImageID );

    protected:  // Data

        TAknsBackground* iLayout; //<! Background layout structure.

        MAknsControlContext* iParentContext; //<! Parent context (not owned).

    };

#endif      // AKNSBASICBACKGROUNDCONTROLCONTEXT_H

// End of File