/*

* 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: 

*     Used to decorate an MDesCArray with an extra entry.

*     

*     

*

*/

// AknDesCArrayDecorator.h

//

// 2001 Symbian Ltd.  All rights reserved.

//

#ifndef __AKNDESCARRAYDECORATOR_H__

#define __AKNDESCARRAYDECORATOR_H__

#include <bamdesca.h>

class TAknDesCArrayDecorator : public MDesCArray

	{

public:

	/**

	 * Constructor

	 * 

	 */

	IMPORT_C TAknDesCArrayDecorator();

public:

	/**

	 * Set pointer to descriptor array that will be decorated. 

	 * 

	 * @param aArray	pointer to descriptor array, ownership is not passed

	 */

	IMPORT_C void SetArray(const MDesCArray* aArray);

	/**

	 * Set descriptor containing text that will be used as the extra entry in the descriptor array.

	 * The client retains ownership of the descriptor containing the decoration text, and therefore

	 * can use the same descriptor text for multiple decorator instances. The client must 

	 * maintain the descriptor for the lifetime of the decorator.

	 * 

	 * @param aText	descriptor, ownership is not passed

	 */

	IMPORT_C void SetDecorationText(const TDesC& aText);

	/**

	 * Set the decorator's activation state. If active, the decorator adds the decoration to 

	 * the array, otherwise it does not.

	 * 

	 * @param aActive	ETrue = active; EFalse = inactive

	 */

	IMPORT_C void SetActive(const TBool aActive);

	/**

	 * Reports whether the supplied index position corresponds to the decoration entry 

	 * in the array. 

	 * <p> Note that the client must call this method on each instance of 

	 * TAknDesCArrayDecorator in the recursive containment (if it is not part of the 

	 * MDesCArray interface). 

	 *

	 * @param aIndex		output parameter, contains index in array of the decorated 

	 *									position, only valid if return value is ETrue

	 * @return				ETrue if there is a decorated position, EFalse otherwise

	 */

	IMPORT_C TBool DecoratedIndex(TInt& aIndex) const;

public: // from MDesCArray

	/**

	 * Reports count of decorated array

	 *

	 * @return count of decorated array

	 */

    IMPORT_C virtual TInt MdcaCount() const;

	/**

	 * Returns array element. 

	 * Returns decoration text if the index is one off the end of the decorated array

	 *

	 * @param index of element to return

	 * @return descriptor representing array element

	 */

    IMPORT_C virtual TPtrC MdcaPoint(TInt aIndex) const;

private:

	// the following members are not owned

	const MDesCArray* iArray;

	TPtrC iText;

	TBool iActive;

	__DECLARE_TEST;

	};

#endif //__AKNDESCARRAYDECORATOR_H__