1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __CHARSETCONVERTER_H__

    17 #define __CHARSETCONVERTER_H__

    18 

    19 #include <f32file.h>

    20 

    21 class CCnvCharacterSetConverter;

    22 

    23 namespace Xml

    24 {

    25 

    26 /**

    27 The CCharSetConverter class supplies algorithms for character conversion

    28 between a chosen character set and unicode. Memory management

    29 needed to hold the converted data is also handled.

    30 

    31 @see CCnvCharacterSetConverter

    32 @see CnvUtfConverter

    33 @see MParser

    34 

    35 @publishedPartner

    36 @released

    37 */

    38 class CCharSetConverter : public CBase

    39 	{

    40 public:

    41 

    42 	static CCharSetConverter* NewL();

    43 	virtual ~CCharSetConverter();

    44 

    45 	IMPORT_C void PrepareCharConvL(TUint& aCharSetUid, const TDesC8& aEncoding);

    46 	IMPORT_C void PrepareCharConvL(TUint& aCharSetUid, TInt aMibEnum);

    47 

    48 	IMPORT_C TInt ConvertToUnicodeL(TUint32 aSrcCharset, const TDesC8& aInputBuffer, 

    49 		                            HBufC16*& aUnicodeConversion);

    50 	IMPORT_C TInt ConvertFromUnicodeL(const TDesC16& aUnicodeConversion, TUint32 aDestCharset, 

    51 		                              HBufC8*& aOutputBuffer);

    52 	IMPORT_C void PrepareToConvertToOrFromL(TUint32 aCharSetUid);

    53 	IMPORT_C TInt ConvertUcs4CharactersToEncodingL(TUint32* aUcs4Src, TInt aUcs4Count, 

    54 		                                           TUint32 aDestCharset, HBufC8*& aConversion);

    55 	IMPORT_C void ConvertCharacterSetIdentifierToStandardNameL(TUint32 aCharSetUid, HBufC8*& aCharSet);

    56 	

    57 	IMPORT_C TInt ConvertToUnicodeL(TUint32 aSrcCharset, const TDesC8& aInputBuffer, TPtr16& aOutput);

    58 	IMPORT_C TInt ConvertFromUnicodeL(const TDesC16& aUnicodeConversion, TUint32 aDestCharset, TPtr8& aOutput);

    59 		

    60 private:

    61 

    62 	CCharSetConverter();

    63 	CCharSetConverter(const CCharSetConverter& aOriginal);

    64 	CCharSetConverter& operator=(const CCharSetConverter& aRhs);

    65 	

    66 	void ConstructL();

    67 

    68 	TText16* Utf32ToUtf16(TText16* aUtf16Out, TUint32 aUtf32);

    69 

    70 private:

    71 

    72 /**

    73 The CharConv instance that we use to help in the character conversions.

    74 */

    75 	CCnvCharacterSetConverter* iCnvCharacterSetConverter;

    76 

    77 /**

    78 The File Server session handle.

    79 */

    80 	RFs iFs;

    81 	

    82 /**	

    83 The buffer used to store the unicode conversion output.

    84 */

    85 	TAny* iConversionBuffer;

    86 

    87 /**	

    88 The size of the unicode conversion buffer.

    89 */

    90 	TUint32 iConversionBufferSize;

    91 	};

    92 }

    93 

    94 

    95 #endif //__CHARSETCONVERTER_H__