/*

* 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: 

*

*/

#include <e32std.h>

#include <charconv.h>

#include <convutils.h>

#include "jisbase.h"

#include "jisx0201.h"

#include "jisx0208.h"

#include <ecom/implementationproxy.h>

#include <charactersetconverter.h>

_LIT8(KLit8EscapeSequenceForJisRoman, "\x1b\x28\x4a");

_LIT8(KLit8EscapeSequenceForAscii, "\x1b\x28\x42");     

_LIT8(KLit8EscapeSequenceForJisX0208_1983, "\x1b\x24\x42");

_LIT8(KLit8Iso2022JpReplacementForUnconvertibleUnicodeCharacters, "\x1b\x24\x42\x21\x29"); // fullwidth question mark

class CISO2022JPConverterImpl : public CCharacterSetConverterPluginInterface

	{

public:

	virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();

	virtual TInt ConvertFromUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

		TDes8& aForeign, 

		const TDesC16& aUnicode, 

		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);

	virtual TInt ConvertToUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		TDes16& aUnicode, 

		const TDesC8& aForeign, 

		TInt& aState, 

		TInt& aNumberOfUnconvertibleCharacters, 

		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

	virtual TBool IsInThisCharacterSetL(

		TBool& aSetToTrue, 

		TInt& aConfidenceLevel, 

		const TDesC8& aSample);

	static CISO2022JPConverterImpl* NewL();

	virtual ~CISO2022JPConverterImpl();

private:

	CISO2022JPConverterImpl();

	};

const TDesC8& CISO2022JPConverterImpl::ReplacementForUnconvertibleUnicodeCharacters()

	{

	return KLit8Iso2022JpReplacementForUnconvertibleUnicodeCharacters;

	}

LOCAL_C void ConvertFromJisRomanToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisRoman, 1);

	}

LOCAL_C void ConvertFromAsciiToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForAscii, 1);

	}

LOCAL_C void ConvertFromJisX0208ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0208_1983, 2);

	}

TInt CISO2022JPConverterImpl::ConvertFromUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

		TDes8& aForeign, 

		const TDesC16& aUnicode, 

		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters)

	{

	TFixedArray<CnvUtilities::SCharacterSet, 3> characterSets;

	characterSets[0].iConversionData=&CCnvCharacterSetConverter::AsciiConversionData();

	characterSets[0].iConvertFromIntermediateBufferInPlace=ConvertFromAsciiToJisInPlace;

	characterSets[0].iEscapeSequence=&KLit8EscapeSequenceForAscii;

	characterSets[1].iConversionData=&CnvJisRoman::ConversionData();

	characterSets[1].iConvertFromIntermediateBufferInPlace=ConvertFromJisRomanToJisInPlace;

	characterSets[1].iEscapeSequence=&KLit8EscapeSequenceForJisRoman;

	characterSets[2].iConversionData=&CnvJisX0208::ConversionData();

	characterSets[2].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToJisInPlace;

	characterSets[2].iEscapeSequence=&KLit8EscapeSequenceForJisX0208_1983;

	TUint notUsed;

	TUint inputConversionFlags=CCnvCharacterSetConverter::EInputConversionFlagMustEndInDefaultCharacterSet |

	                           CCnvCharacterSetConverter::EInputConversionFlagAssumeStartInDefaultCharacterSet;

	return CnvUtilities::ConvertFromUnicode(aDefaultEndiannessOfForeignCharacters, aReplacementForUnconvertibleUnicodeCharacters, aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, characterSets.Array(),notUsed,inputConversionFlags);

	}

TInt CISO2022JPConverterImpl::ConvertToUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		TDes16& aUnicode, 

		const TDesC8& aForeign, 

		TInt& aState, 

		TInt& aNumberOfUnconvertibleCharacters, 

		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter)

	{

	return CnvJisBase::ConvertToUnicode(aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, aState, aNumberOfUnconvertibleCharacters, aIndexOfFirstByteOfFirstUnconvertibleCharacter);

	}

TBool CISO2022JPConverterImpl::IsInThisCharacterSetL(

		TBool& aSetToTrue, 

		TInt& aConfidenceLevel, 

		const TDesC8& aSample)

	{

	aSetToTrue=ETrue;

	CnvJisBase::IsCharacterJISBased(aConfidenceLevel, aSample);

	return ETrue;

	}

CISO2022JPConverterImpl* CISO2022JPConverterImpl::NewL()

	{

	CISO2022JPConverterImpl* self = new(ELeave) CISO2022JPConverterImpl();

	return self;

	}

CISO2022JPConverterImpl::~CISO2022JPConverterImpl()

	{

	}

CISO2022JPConverterImpl::CISO2022JPConverterImpl()

	{

	}

const TImplementationProxy ImplementationTable[] = 

	{

		IMPLEMENTATION_PROXY_ENTRY(0x100066A0,	CISO2022JPConverterImpl::NewL)

	};

EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

	{

	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

	return ImplementationTable;

	}