/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* which accompanies this distribution, and is available

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Name        : sipacceptlanguageheader.h

* Part of     : SIP Codec

* Interface   : SDK API, SIP Codec API

* Version     : SIP/4.0 

*

*/

#ifndef CSIPACCEPTLANGUAGEHEADER_H

#define CSIPACCEPTLANGUAGEHEADER_H

//  INCLUDES

#include "sipparameterheaderbase.h"

// FORWARD DECLARATIONS

class CSIPAcceptHeaderParams;

// CLASS DECLARATION

/**

* @publishedAll

* @released

*

* Class provides functions for setting and getting media types and

* parameters in SIP "Accept-Language" header.

*

* @lib sipcodec.lib

*/

class CSIPAcceptLanguageHeader : public CSIPParameterHeaderBase

	{

	public: // Constructors and destructor

		/**

		* Constructs a CSIPAcceptLanguageHeader from textual representation 

		* of the header's value part.

		* @param aValue a value part of a "Accept-Language"-header

		* @return an array containing one to many instances of 

		* 		   CSIPAcceptLanguageHeader. 

		*/

		IMPORT_C static RPointerArray<CSIPAcceptLanguageHeader> 

			DecodeL(const TDesC8& aValue);

		/**

		* Creates a new instance of CSIPAcceptLanguageHeader

		* @param aLanguageRange a language-range to set

		* @return a new instance of CSIPAcceptLanguageHeader

		*/

		IMPORT_C static CSIPAcceptLanguageHeader* 

			NewL(const TDesC8& aLanguageRange);

		/**

		* Creates a new instance of CSIPAcceptLanguageHeader and puts it onto

		* the cleanup stack

		* @param aLanguageRange a language-range to set

		* @return a new instance of CSIPAcceptLanguageHeader

		*/

		IMPORT_C static CSIPAcceptLanguageHeader* 

			NewLC(const TDesC8& aLanguageRange);

		/**

		* Destructor, deletes the resources of CSIPAcceptLanguageHeader.

		*/

		IMPORT_C ~CSIPAcceptLanguageHeader();

	public: // New functions

		/**

		* Gets the language-range from the "Accept-Language" header

		* @return a language-range

		*/

		IMPORT_C const TDesC8& LanguageRange() const;

		/**

		* Sets the language-range in the "Accept-Language" header

		* @param aLanguageRange a language-range

		*/

		IMPORT_C void SetLanguageRangeL(const TDesC8& aLanguageRange);

		/**

		* Gets the value of "q"-parameter

		* @return the "q"-parameter value

		*/

		IMPORT_C TReal QParameter() const;

		/**

		* Sets the "q"-parameter value

		* @param aQValue a "q"-parameter value to set

		*/

		IMPORT_C void SetQParameterL(TReal aQValue);

		/**

		* Constructs an instance of a CSIPAcceptLanguageHeader from a RReadStream

		* @param aReadStream a stream containing the value of the

		*        externalized header object (header name not included).

		* @return an instance of a CSIPAcceptLanguageHeader

		*/

		IMPORT_C static CSIPHeaderBase* 

			InternalizeValueL(RReadStream& aReadStream);

	public: // From CSIPHeaderBase

		/**

		* From CSIPHeaderBase CloneL

		*/

		IMPORT_C CSIPHeaderBase* CloneL() const;

		/**

		* From CSIPHeaderBase Name

		*/

		IMPORT_C RStringF Name() const;

	public: // From CSIPHeaderBase, for internal use

        /**

        * @internalComponent

        */

		TBool MoreThanOneAllowed() const;

        /**

        * @internalComponent

        */

		TPreferredPlace PreferredPlaceInMessage() const;

	public: // New functions, for internal use

		static RPointerArray<CSIPHeaderBase> BaseDecodeL(const TDesC8& aValue);

	private: // From CSIPHeaderBase

		void ExternalizeValueL(RWriteStream& aWriteStream) const;

	private: // From CSIPParameterHeaderBase

		HBufC8* ToTextMandatoryPartLC() const;

		void ParseMandatoryPartL(const TDesC8& aMandatoryPart);

		const CSIPParamContainerBase& Params() const;

		CSIPParamContainerBase& Params();

	private: // New functions

		CSIPAcceptLanguageHeader();

		void ConstructL();

		void ConstructL(const TDesC8& aLanguageRange);

		void ConstructL(const CSIPAcceptLanguageHeader& aAcceptLanguageHeader);

		void DoInternalizeValueL(RReadStream& aReadStream);

	private: // Data

		HBufC8* iLanguageRange;

		CSIPAcceptHeaderParams* iParams;

	private: // For testing purposes

	};

#endif // CSIPACCEPTLANGUAGEHEADER_H

// End of File