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73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* A character set converter from Unicode to GBK.
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*
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*
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* @created 08/Sept/1999
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* @author Yueheng Xu, Yueheng.Xu@intel.com
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*/
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#ifndef nsUnicodeToGBK_h___
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#define nsUnicodeToGBK_h___
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#include "nsUCSupport.h"
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#include "nsCOMPtr.h"
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#include "nsIUnicodeEncoder.h"
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#include "nsGBKConvUtil.h"
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//----------------------------------------------------------------------
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// Class nsUnicodeToGBK [declaration]
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class nsUnicodeToGBK: public nsEncoderSupport
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{
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public:
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/**
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* Class constructor.
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*/
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explicit nsUnicodeToGBK(uint32_t aMaxLengthFactor = 2);
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virtual ~nsUnicodeToGBK() {}
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protected:
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//--------------------------------------------------------------------
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// Subclassing of nsEncoderSupport class [declaration]
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NS_IMETHOD ConvertNoBuffNoErr(const char16_t * aSrc,
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int32_t * aSrcLength,
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char * aDest,
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int32_t * aDestLength);
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virtual void CreateExtensionEncoder();
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virtual void Create4BytesEncoder();
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nsCOMPtr<nsIUnicodeEncoder> mExtensionEncoder;
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nsCOMPtr<nsIUnicodeEncoder> m4BytesEncoder;
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protected:
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char16_t mSurrogateHigh;
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nsGBKConvUtil mUtil;
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nsresult TryExtensionEncoder(char16_t aChar, char* aDest, int32_t* aOutLen);
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nsresult Try4BytesEncoder(char16_t aChar, char* aDest, int32_t* aOutLen);
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virtual nsresult EncodeSurrogate(char16_t aSurrogateHigh,
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char16_t aSurrogateLow, char* aDest,
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int32_t aDestLength, int32_t aBufferLength);
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};
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class nsUnicodeToGB18030: public nsUnicodeToGBK
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{
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public:
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nsUnicodeToGB18030() : nsUnicodeToGBK(4) {}
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virtual ~nsUnicodeToGB18030() {}
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protected:
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virtual void CreateExtensionEncoder();
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virtual void Create4BytesEncoder();
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virtual nsresult EncodeSurrogate(char16_t aSurrogateHigh,
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char16_t aSurrogateLow, char* aDest,
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int32_t aDestLength, int32_t aBufferLength);
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};
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#endif /* nsUnicodeToGBK_h___ */
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