/*

* Copyright (c) 2004-2006 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:  CNssTag implements MNssTag. In addition, it provides members for use

*               by VAS internal components.

*

*/

#ifndef NSSVASCTAG_H

#define NSSVASCTAG_H

// includes

#include "nssvasmtag.h"

#include "nssvasccontext.h"

#include "nssvascrrd.h"

#include "nssvascspeechitem.h"

#include "nssvascoreconstant.h"

// CLASS DECLARATION

/**

*  CNssTag is the implementation class for MNssTag interface. 

*  It encapsulates tag data. A tag cannot be directly created by a client. 

*  A client has to own an instance of Tag Manager which has methods for creating 

*  tag objects. The CNssTag class also provides additional members for internal 

*  use by VAS.

*  @lib NssVASApi.lib

*  @since 2.8

*/

class CNssTag: public CBase, public MNssTag

{

public: // functions for internal VAS use

    /**

    * Two-phased constructor. Creates an empty tag object

    * for internal use.

    */

    static CNssTag* NewLC();

    /**

    * Two-phased constructor. Creates an empty tag object

    * for internal use.

    */

    static CNssTag* NewL();

public:   

    /**

    * C++ constructor.

	* @param aContext - pointer to a previously created context

	* @param aRRD - pointer to a previously created rrd

	* @param aSpeechItem - pointer to a previously created speech item

    * @return 

    */

	CNssTag(CNssContext* aContext, CNssRRD* aRRD, CNssSpeechItem* aSpeechItem);

    /**

    * Destructor.

	* @param 

    * @return 

    */

	 ~CNssTag();

    /**

    * Get the context for this tag.

	* @since 2.0

	* @param 

    * @return pointer to the context for this tag

    */

     MNssContext* Context();

    /**

    * Get the RRD for this tag.

	* @since 2.0

	* @param 

    * @return pointer to the RRD for this tag

    */

	 MNssRRD* RRD();

    /**

    * Get the Speech Item for this tag.

	* @since 2.0

	* @param 

    * @return pointer to the RRD for this tag

    */

	 MNssSpeechItem* SpeechItem();

	/**

    * Get the Tag Id for this tag.

	* @since 2.0

	* @param 

    * @return id for this tag

    */

	 TInt TagId();

	/**

    * Set the Tag Id for this tag.

	* @since 2.0

	* @param aId - id for this tag

    * @return 

    */

	 void SetTagId(TInt aId);

	/**

    * Creates a copy of the tag object and returns a pointer

	* to the newly created tag. CopyL creates a new rrd object and 

	* a new speech item for the new tag. CopyL uses the same context 

	* object from the source tag into the new tag. A client calling calling

	* this method takes the responsibility of deleting the new tag object.

	* For internal use by by VAS components.

	* @since 2.0

	* @param 

    * @return pointer to the tag object newly created 

    */

	 CNssTag *CopyL();

private:

    /**

    * Constructor used in two-phased construction

    */

    CNssTag();

    /**

    * Two-phase construction

    */

	void ConstructL();

private:

	// context object

	CNssContext* iContext;

	// RRD object

	CNssRRD* iRRD;

	// speech item object

	CNssSpeechItem* iSpeechItem;

	// tag id, for internal use

	TInt iTagId;

};

#endif // NSSVASCTAG_H   

// End of File