/*

* 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        : sipacceptencodingheader.h

* Part of     : SIP Codec

* Interface   : SDK API, SIP Codec API

* Version     : SIP/4.0 

*

*/

#ifndef CSIPACCEPTENCODINGHEADER_H

#define CSIPACCEPTENCODINGHEADER_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-Encoding" header.

*

*  @lib sipcodec.lib

*/

class CSIPAcceptEncodingHeader : public CSIPParameterHeaderBase

	{

	public:	// Constructors and destructor

		/**

		* Constructs a CSIPAcceptEncodingHeader from textual representation 

		* of the header's value part.

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

		* @return An array containing one to many CSIPAcceptEncodingHeader

		*         instances

		*/

		IMPORT_C static RPointerArray<CSIPAcceptEncodingHeader> 

			DecodeL(const TDesC8& aValue);

		/**

		* Creates a new instance of CSIPAcceptEncodingHeader

		* @param aCodings a codings to set.

		* @return a new instance of CSIPAcceptEncodingHeader

		*/

		IMPORT_C static CSIPAcceptEncodingHeader* NewL(const TDesC8& aCodings);

		/**

		* Creates a new instance of CSIPAcceptEncodingHeader 

		* and puts it onto the cleanup stack

		* @param aCodings a codings to set.

		* @return a new instance of CSIPAcceptEncodingHeader

		*/

		IMPORT_C static CSIPAcceptEncodingHeader* NewLC(const TDesC8& aCodings);

		/**

		* Destructor, deletes the resources of CSIPAcceptEncodingHeader.

		*/

		IMPORT_C ~CSIPAcceptEncodingHeader();

	public:	// New functions  

		/**

		* Gets the codings from the "Accept-Encoding" header

		* @return codings

		*/

		IMPORT_C const TDesC8& Codings() const;

		/**

		* Sets the codings in the "Accept-Encoding" header

		* @param aCodings the codings

		*/

		IMPORT_C void SetCodingsL(const TDesC8& aCodings);

		/**

		* 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 CSIPAcceptEncodingHeader from a RReadStream

		* @param aReadStream a stream containing the value of the

		*        externalized header object (header name not included).

		* @return An instance of a CSIPAcceptEncodingHeader

		*/

		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: // Constructors

		CSIPAcceptEncodingHeader();

		void ConstructL();

		void ConstructL(const TDesC8& aCodings);

		void ConstructL(const CSIPAcceptEncodingHeader& aAcceptEncodingHeader);

	private: // New functions

		void DoInternalizeValueL(RReadStream& aReadStream);

	private: // Data

		HBufC8* iCodings;

		CSIPAcceptHeaderParams* iParams;

	private: // For testing purposes

	};

#endif // CSIPACCEPTENCODINGHEADER_H

// End of File