/*

 * 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 wstring to Descriptor16 conversions

  *

 */

 #include "libutils.h"

  /**

    * Converts a wstring to a descriptor of type TBufc16

    *

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

    * reference to the descriptor where the result of conversion 

    * is stored 

    * @return Status code (0 is ESuccess, -1 is EInsufficientMemory, 

    * -3 is EStringNoData )

    */

 EXPORT_C int WstringToTbuf16(wstring& aSrc, TDes16& aDes)

 {

     int retval = ESuccess;

     const wchar_t* wcharString = aSrc.c_str();

     if (L'\0' == wcharString[0])

     {

     	return EStringNoData;

     }

     int len= wcslen(wcharString);

     if ((wcslen(wcharString)) > aDes.MaxLength())

     if (len > aDes.MaxLength())

     {

     	return EInsufficientMemory;

     }

 	aDes.Copy((const TUint16*)wcharString);

     return retval;	

 }

  /**

    * Converts a wstring to a descriptor of type TPtr16

    *

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

    * reference to the descriptor where the result of conversion 

    * is stored 

    * @return Status code (0 is ESuccess, -3 is EStringNoData, -1 is EInsufficientMemory)

    */

 EXPORT_C int WstringToTptr16(wstring& aSrc, TPtr16& aDes )

 {

     const wchar_t* wcharString = aSrc.c_str();

     unsigned int wlen = 0 , maxlen =0; 

     if (L'\0' == wcharString[0])

     {

     	return EStringNoData;

     }

     wlen = wcslen(wcharString);

     maxlen = aDes.MaxLength();

     if (maxlen < wlen)

     {

     	return EInsufficientMemory;

     }

 	aDes.Set((unsigned short *)wcharString, wlen, maxlen);

 	return ESuccess;

 }

  /**

    * Converts a wstring to a descriptor of type TPtrC16

    *

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

    * reference to the descriptor where the result of conversion 

    * is stored 

    * @return Status code (0 is ESuccess,-3 is EStringNoData  )

    */

 EXPORT_C int WstringToTptrc16(wstring& aSrc, TPtrC16& aDes)

 {

     const wchar_t* wcharString = aSrc.c_str();

     if (L'\0' == wcharString[0])

     {

     	return EStringNoData;

     }

 	aDes.Set((TUint16 *)(wcharString));

 	return ESuccess;

 }

  /**

    * Converts a wstring to a descriptor of type HBufc16

    *

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

    * reference to the descriptor where the result of conversion 

    * is stored 

    * @return Status code (0 is ESuccess, -1 is EInsufficientMemory, 

    * -3 is EStringNoData, -4 is EInvalidPointer )

    */

 EXPORT_C int WstringToHbufc16(wstring& aSrc, HBufC16* aDes)

 {

     unsigned int ilendes = 0; 

     const wchar_t* wcharString = aSrc.c_str();

     if (L'\0' == wcharString[0])

     {

     	return EStringNoData;

     }

     else if (!aDes)

     {

     	return EInvalidPointer;

     }

     ilendes = aDes->Length();

     if (0 == ilendes)

     {

     	return EUseNewMaxL;

     }

     else if (ilendes < wcslen(wcharString))

     {

     	return EInsufficientMemory;

     }

 	*aDes = (TUint16*)wcharString;

 	return ESuccess;	

 }

  /**

    * Converts a wstring to a descriptor of type RBufc16

    *

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

    * reference to the descriptor where the result of conversion 

    * is stored 

    * @return Status code (0 is ESuccess , -3 is EStringNoData )

    */

 EXPORT_C int WstringToRbuf16(const wstring& aSrc, RBuf16& aDes)

 {

     unsigned int wlen =0;

     int retval = ESuccess;

     const wchar_t* wcharString = aSrc.c_str();

     if (L'\0' == wcharString[0])

     {

     	return EStringNoData;

     }

     wlen = wcslen(wcharString);

     aDes.Copy((const unsigned short *)wcharString, wlen);	

 	  return retval;

 }