/*

* Copyright (c) 2002-2004 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:

* Xuikon component node implementation

*

*/

#ifndef XNCOMPONENTNODEIMPL_H

#define XNCOMPONENTNODEIMPL_H

// System includes

#include <e32base.h>

// User includes

#include "xnnodeimpl.h"

// Forward declarations

class CXnComponent;

namespace XnComponentInterface

    {

    class MXnComponentInterface;

    }

// Class declaration

/**

 * Xuikon component node implementation

 *

 * @ingroup group_xnlayoutengine

 * @lib ?library

 * @since Series 60 3.1

 */

class CXnComponentNodeImpl : public CXnNodeImpl

    {

public:

    /**

     * Two-phased constructor.

     *

     * @param aType Type.

     */

    IMPORT_C static CXnComponentNodeImpl* NewL( CXnType* aType );

    /**

     * Destructor.

     */

    IMPORT_C virtual ~CXnComponentNodeImpl();

public:

    // New functions

    /**

     * Get the component

     *

     * @since Series 60 3.1

     * @return Component

     */

    IMPORT_C CXnComponent* Component();

    /**

     * Set the component

     *

     * @since Series 60 3.1

     * @param aComponent Component

     */

    IMPORT_C void SetComponent( CXnComponent* aComponent );

    /**

     * Returns whether a component should be created for the node

     *

     * @since Series 60 3.1

     * @return Flag indicating whether a component should be created for the node

     */

    IMPORT_C TBool DoesComponentNeedCreation() const;

    /**

     * Set the flag indicating whether a component should be created for the node

     *

     * @since Series 60 3.1

     * @param aFlag Flag indicating whether a component should be created for the

     *        node

     */

    IMPORT_C void SetComponentNeedsCreation( TBool aFlag );

public:

    /**

     * From CXnNodeImpl.

     * Create a component interface according to the given type.

     *

     * @param aType Type of the interface to create

     * @return Created interface or NULL if the provided type is not supported.

     */

    IMPORT_C virtual XnComponentInterface::MXnComponentInterface* MakeInterfaceL(

        const TDesC8& aType );

protected:

    /**

     * C++ default constructor.

     */

    IMPORT_C CXnComponentNodeImpl();

    /**

     * Two-phased constructor.

     *

     * @param aType Type

     */

    IMPORT_C void ConstructL( CXnType* aType );

private:

    // Data

    /**

     * Component.

     * Own.

     */

    CXnComponent* iComponent;

    /**

     * Flag indicating whether a component should be created for the node

     */

    TBool iComponentNeedsCreation;

    };

#endif