/*

* 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 Descriptor8 to wchar * conversions

 *

*/

#include "libutils.h"

 /**

   * Converts a descriptor of type TBuf8 to wchar

   *

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

   * reference to the wchar array where the result of conversion 

   * is stored  

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

   *  -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Tbuf8ToWchar(TDes8& aSrc, wchar_t* aDes, int& n_size)

{	

    int retval = ESuccess;	

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if(0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    }

    else if(n_size < ilen+1)

    {	

        n_size = ilen+1; 

    	return EInvalidSize;

    }	

	if(minusone != mbstowcs(aDes, (const char*)aSrc.Ptr(), ilen))

	{

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

	}

	else 

	{

		retval = EInvalidMBSSequence;

	}

	return retval;			

}		

 /**

   * Converts a descriptor of type TBufc8 to wchar

   *

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

   * reference to the wchar array where the result of conversion 

   * is stored  

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

   *  -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Tbufc8ToWchar(TDesC8& aSrc, wchar_t* aDes, int& n_size)

{

    int retval = ESuccess;

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if(0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    }

    else if (n_size < ilen+1)

	{

		n_size = ilen+1;

		return EInvalidSize;

	}

	if(minusone != mbstowcs(aDes, (const char *)aSrc.Ptr(), ilen))

	{

		aDes[ilen] = L'\0';

	}

	else 

	{

		retval = EInvalidMBSSequence;

	}

	return retval;

}

 /**

   * Converts a descriptor of type TLitc8 to wchar

   *

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

   * reference to the wchar array where the result of conversion 

   * is stored  

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

   *  -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Tlitc8ToWchar( const TDesC8& aSrc, wchar_t* aDes, int& n_size)

{ 

    int retval = ESuccess;

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if (0 == ilen )

    {

    	return EDescriptorNoData;

    }

    else if ( !aDes )

    {

    	return EInvalidPointer;

    }

    else if (n_size < ilen+1)

    {

		n_size = ilen+1 ;

		return EInvalidSize;    	

    }

	if(minusone != mbstowcs(aDes, (const char*)aSrc.Ptr(), ilen ))

	{

	    aDes[ilen] = L'\0'; 

	}

	else 

	{

		retval = EInvalidMBSSequence;

	}

	return retval;	

}

 /**

   *Converts a descriptor of type TPtr8 to Wchar

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

   *reference to the wchar array where the result of conversion 

   *is stored  

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

   * -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Tptr8ToWcharp(const TPtr8& aSrc, wchar_t* aDes, int& n_size)

{

    int retval = ESuccess;

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    } 

	else if(n_size < ilen+1)

    {

        n_size = ilen+1 ;

    	return EInvalidSize;

    }

	if(minusone != mbstowcs(aDes, (const char*)aSrc.Ptr(), ilen))

	{

	    aDes[ilen] = L'\0';

	}

	else 

	{

		retval = EInvalidMBSSequence;

	}

	return retval;

}

 /**

   *Converts a descriptor of type TPtrc to Wchar

   *

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

   *reference to the wchar array where the result of conversion 

   *is stored  

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

   * -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Tptrc8ToWcharp(TPtrC8& aSrc, wchar_t* aDes, int& n_size)

{

    int retval = ESuccess;

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if (0 == ilen)

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    }

	else if(n_size < ilen)

	{

		n_size = ilen;

		return EInvalidSize;

	}

	if(minusone != mbstowcs(aDes, (const char*)aSrc.Ptr(), ilen))

	{

	    aDes[ilen] = L'\0';

	}

	else 

	{

		retval = EInvalidMBSSequence;

	}

	return retval;	

}

 /**

   *Converts a descriptor of type Rbuf8 to Wchar

   *

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

   *reference to the wchar array where the result of conversion 

   *is stored  

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

   * -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int Rbuf8ToWchar(TDes8& aSrc, wchar_t* aDes, int& n_size)

{

    int retval = ESuccess;

    unsigned int ilen = aSrc.Length();

    int minusone = -1;

    if (0 == ilen )

    {

    	return EDescriptorNoData;

    }

    else if(!aDes)

    {

    	return EInvalidPointer;

    }

    else if (n_size < ilen)

	{

		n_size = ilen + 1;

		return EInvalidSize;

	}

	if(minusone != mbstowcs(aDes, (const char*)aSrc.Ptr(), ilen))

	{

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

	}

	else

	{

		retval = EInvalidMBSSequence;

	}

	return retval;

}

/**

   *Converts a descriptor of type Rbuf8 to Wchar

   *

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

   *reference to the wchar array where the result of conversion 

   *is stored  

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

   * -2 is EInvalidSize , -4 is EInvalidPointer , -5 is EDescriptorNoData)

   */

EXPORT_C int HBufc8ToWchar(HBufC8* aSrc, wchar_t* aDes, int& n_size)

{

    int retval = ESuccess;

    unsigned int ilen = 0;

    int minusone = -1;

    if(!aDes || !aSrc)

    {

    	return EInvalidPointer;

    }

    else

    {

    	int ilen = aSrc->Length();

    	if (0 == ilen )

        {

    	    return EDescriptorNoData;

        }

        else if (n_size < ilen)

	    {

		    n_size = ilen + 1;

		    return EInvalidSize;

	    }

    }

	if(minusone != mbstowcs(aDes, (const char*)aSrc->Ptr(), ilen))

	{

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

	}

	else

	{

		retval = EInvalidMBSSequence;

	}

	return retval;

}