// Copyright (c) 2000-2009 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:

// Declares utility classes private to the GSMU dll

// 

//

/**

 @file

 @file

 @internalComponent 

*/

#ifndef __GSMUPRIV_H__

#define __GSMUPRIV_H__

#include <charconv.h>

#include "Gsmuelem.h"

/**

 *  TSmsPacker - packs and unpacks data encoded in an SMS alphabet

 *  @internalComponent

 */

class TSmsAlphabetPacker

	{

public:

// Construction

	TSmsAlphabetPacker(TSmsDataCodingScheme::TSmsAlphabet aAlphabet,TBool aIsBinary,TInt aStartBit);

// Packing / unpacking methods

	TInt PackL(TDes8& aOut,const TDesC8& aIn);

	TInt UnpackL(const TDesC8& aIn,TDes8& aOut,TInt aNumUDUnits);

	TInt ConvertAndPackL(CCnvCharacterSetConverter& aCharacterSetConverter,RFs& aFs,TDes8& aOut,const TDesC& aIn,TInt& aConvertedNumUDUnits);

	TInt UnpackAndConvertL(CCnvCharacterSetConverter& aCharacterSetConverter,RFs& aFs,const TDesC8& aIn,TDes& aOut,TInt aNumUDUnits);

	TInt PackedOctetsRequiredL(TInt aNumUDUnits) const;

	TInt NumUDUnitsL(TInt aOctets) const;

private:

// Private helper methods

	TInt ElementSizeInBitsL() const;

private:

	TSmsDataCodingScheme::TSmsAlphabet iAlphabet;

	TBool iIsBinary;

	TInt iStartBit;

	};

#endif // __GSMUPRIV_H__