gecko/intl/uconv/ucvcn/nsUnicodeToGBK.h
2010-07-04 15:42:04 +03:00

107 lines
3.7 KiB
C++

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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*
* The Original Code is mozilla.org code.
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* The Initial Developer of the Original Code is
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* Portions created by the Initial Developer are Copyright (C) 1998
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/**
* A character set converter from Unicode to GBK.
*
*
* @created 08/Sept/1999
* @author Yueheng Xu, Yueheng.Xu@intel.com
*/
#ifndef nsUnicodeToGBK_h___
#define nsUnicodeToGBK_h___
#include "nsUCSupport.h"
#include "nsCOMPtr.h"
#include "nsIUnicodeEncoder.h"
#include "gbku.h"
//----------------------------------------------------------------------
// Class nsUnicodeToGBK [declaration]
class nsUnicodeToGBK: public nsEncoderSupport
{
public:
/**
* Class constructor.
*/
nsUnicodeToGBK(PRUint32 aMaxLengthFactor = 2);
virtual ~nsUnicodeToGBK() {}
protected:
//--------------------------------------------------------------------
// Subclassing of nsEncoderSupport class [declaration]
NS_IMETHOD ConvertNoBuff(const PRUnichar * aSrc,
PRInt32 * aSrcLength,
char * aDest,
PRInt32 * aDestLength);
NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
char * aDest, PRInt32 * aDestLength)
{
return NS_OK;
} // just make it not abstract;
virtual void CreateExtensionEncoder();
virtual void Create4BytesEncoder();
nsCOMPtr<nsIUnicodeEncoder> mExtensionEncoder;
nsCOMPtr<nsIUnicodeEncoder> m4BytesEncoder;
protected:
PRUnichar mSurrogateHigh;
nsGBKConvUtil mUtil;
PRBool TryExtensionEncoder(PRUnichar aChar, char* aDest, PRInt32* aOutLen);
PRBool Try4BytesEncoder(PRUnichar aChar, char* aDest, PRInt32* aOutLen);
virtual PRBool EncodeSurrogate(PRUnichar aSurrogateHigh, PRUnichar aSurrogateLow, char* aDest);
};
class nsUnicodeToGB18030: public nsUnicodeToGBK
{
public:
nsUnicodeToGB18030() : nsUnicodeToGBK(4) {}
virtual ~nsUnicodeToGB18030() {}
protected:
virtual void CreateExtensionEncoder();
virtual void Create4BytesEncoder();
virtual PRBool EncodeSurrogate(PRUnichar aSurrogateHigh, PRUnichar aSurrogateLow, char* aDest);
};
#endif /* nsUnicodeToGBK_h___ */