/*

* Copyright (c) 2008 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:   Contains the source for Descriptor16 to wchar * conversions

 *

*/

#include "libutils.h"

 /**

   * Converts a descriptor of type TBuf16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion size of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Tbuf16ToWchar(const TDes16& aSrc, wchar_t* aDes, int& n_size)

{	

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if (!aDes)

    {

    	return EInvalidPointer;

    }

	else if(n_size < (ilen+1))

	{

		n_size = ilen + 1;

		return EInvalidSize;

	}

	wmemcpy(aDes , (const wchar_t*)aSrc.Ptr(), ilen);

	aDes[ilen] = L'\0';

	return ESuccess;	

}

/**

   * Converts a descriptor of type HBufC16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion size of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Hbufc16ToWchar(const HBufC16* aSrc, wchar_t* aDes, int& n_size)

{	

    unsigned int ilen = 0;

    if (!aSrc || !aDes)

    {

    	return EInvalidPointer;

    }

    else 

    {

        ilen = aSrc->Length();

        if (0 == ilen)

        {

    	    return EDescriptorNoData;

        }

        else if(n_size < (ilen+1))

	    {

		    n_size = ilen + 1;

		    return EInvalidSize;

	    }

    }

	wmemcpy(aDes , (const wchar_t*)aSrc->Ptr(), ilen);

	aDes[ilen] = L'\0';

	return ESuccess;	

}

 /**

   * Converts a descriptor of type TBufC16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion size of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Tbufc16ToWchar(TDesC& aSrc, wchar_t* aDes, int& n_size)

{

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if (!aDes)

    {

    	return EInvalidPointer;

    }

	if (n_size < (ilen+1))

	{

		n_size = ilen+1; 

		return EInvalidSize;

	}

	wmemcpy(aDes, (wchar_t *)aSrc.Ptr(), ilen);

	*(aDes + ilen) = L'\0';

	return ESuccess;	

}

 /**

   * Converts a descriptor of type TLitC16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion size of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Tlitc16ToWchar(const TDesC16& aSrc, wchar_t* aDes, int& n_size)

{

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if ( !aDes )

    {

    	return EInvalidPointer;

    }

    else if (n_size < (ilen+1))

    {

		n_size = ilen+11 ;

		return EInvalidSize;    	

    }

	wmemcpy(aDes , (const wchar_t*)aSrc.Ptr(), ilen);

	aDes[ilen] = L'\0';

    return ESuccess;

}

 /**

   * Converts a descriptor of type TPtr16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion length of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Tptr16ToWcharp(const TPtr16& aSrc ,wchar_t* aDes, int& n_size)

{

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    }

	else if(n_size < ilen)

	{   

		n_size = ilen;

		return EInvalidSize;

	}   

	wmemcpy(aDes, (const wchar_t*)aSrc.Ptr(), ilen);

	aDes[ilen] = L'\0';

	return ESuccess;

}

 /**

   * Converts a descriptor of type TPtrC16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion length of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer)

   */

EXPORT_C int Tptrc16ToWcharp(TPtrC16& aSrc, wchar_t* aDes, int& n_size)

{

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if (!aDes)

    {

    	return EInvalidPointer;

    }

	else if (n_size < (ilen+1))

	{

		n_size = ilen+1;

		return EInvalidSize;

	}

	wmemcpy(aDes , (const wchar_t*)aSrc.Ptr(),ilen);

	aDes[ilen] = L'\0';

    return ESuccess;

}

 /**

   * Converts a descriptor of type RBuf16 to WChar

   *

   * @param aSrc is the descriptor to be converted , aDes is the 

   * reference to the WChar stream where the result of conversion 

   * is stored , n_size specifies the conversion length of the WChar 

   * @return Status code (0 is ESuccess, -2 is EInvalidSize , 

   * -4 is EInvalidPointer , -5 is EDESCRIPTORNDATA)

   */

EXPORT_C int Rbuf16ToWchar(TDes16& aSrc, wchar_t* aDes, int& n_size)

{

    unsigned int ilen = aSrc.Length();

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer; 

    }

    else if (n_size < (ilen+1))

	{

		n_size = ilen + 1;

		return EInvalidSize;

	}

    wmemcpy (aDes,(const wchar_t *)aSrc.Ptr(), ilen);

    aDes[ilen] = L'\0';

	return ESuccess;   

}