// Copyright (c) 2007-2009 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:

//

/**

 @file

 @internalTechnology

*/

#ifndef LBS_SUPL_POS_H

#define LBS_SUPL_POS_H

#include "suplmessagebase.h"

#include "suplpospayload.h"

#include <lbspositioninfo.h>

// forward declarations

class ASN1PERDecodeBuffer;

class ASN1T_PDU;

class ASN1C_PDU;

/**

Encapsulation for outgoing/received SUPL POS messages.

@internalTechnology

*/

NONSHARABLE_CLASS(CSuplPos) : public CSuplMessageBase

	{

public:

	IMPORT_C static CSuplPos* NewL(TBool aIsOutgoingMessage);

	IMPORT_C static CSuplPos* NewLC(TBool aIsOutgoingMessage);

public:

	virtual ~CSuplPos();

public:

	/** Set the velocity parameter (for outgoing messages) */

	IMPORT_C TInt SetVelocity(const TPositionInfoBase& aPosInfo);

	/** Assigns the payload RRLP message (for outgoing messages) */

	IMPORT_C void SetPosPayload(CSuplPosPayload* aPayload);

	/** Returns ETrue if the position parameter is present (for received messages) */

	IMPORT_C TBool VelocityPresent();

	/** Populates aPosInfo according to the velocity parameter (for received messages) */

	IMPORT_C TInt GetVelocity(TPositionInfoBase& aPosInfo);

	/** Returns the positioning payload (for received messages).

	    The calling method becomes responsible for destruction of the pos payload. */

	IMPORT_C CSuplPosPayload* PosPayload();

public:

	/** Encodes the SUPL POS message to the passed buffer 

		Called by CSuplMessageBase::EncodeToL() and not intended for DLL export */

	TInt EncodePosPayloadL();

	/** Decodes the content of the positioning payload (for received messages)

		Called by CSuplAsn1DecoderImpl::DecodeL() and not intended for DLL export */

	void DecodePosPayloadL(TInt& aError);

	void LogPayload();

private:

	/** Constructor */

	CSuplPos(TBool aIsOutgoingMessage);

	/** second stage constructor */

	void ConstructL();

	/** Prohibit copy constructor */

	CSuplPos(const CSuplPos&);

	/** Prohibit assigment operator */

	CSuplPos& operator= (const CSuplPos&);

private:

	// converts speed from encoded value N to meters per second.

	TReal32 ConvertHorSpeedToMetersPerSecond(TUint aSpeed);

	// converts speed accuracy from encoded value N to meters per second.

	TReal32 ConvertHorSpeedAccuracyToMetersPerSecond(TUint aSpeedAccuracy);

private:

	/** The positioning payload */	

	CSuplPosPayload* iPosPayload;

	/** Objects used in decoding of the positioning payload */

	ASN1PERDecodeBuffer* iDecodeBuffer;

	ASN1T_PDU* iPayloadData;

	ASN1C_PDU* iPayloadPdu;

	};

#endif // LBS_SUPL_POS_H