IEncodingUtils.h

//========================================================================================
// 
// $File$
// 
// Owner: hhorton, (Bernd Paradies: generalized from EncodingUtils.h).
// 
// $Author$
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// $DateTime$
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// $Revision$
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// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
// this file from a source other than Adobe, then your use, modification, or 
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//========================================================================================

#ifndef _H_IEncodingUtils
#define _H_IEncodingUtils

#include "CJKID.h" // For IID_IENCODINGUTILS
#include "IPMUnknown.h"
#include "Utils.h"
class PMString;
class IPMFont;

class IEncodingUtils : public IPMUnknown
{
public:
 enum { kDefaultIID = IID_IENCODINGUTILS };

 virtual void Unicode2ShiftJIS(textchar &ch) = 0;

 virtual void ShiftJIS2Unicode(textchar &ch) = 0;

 virtual void ShiftJIS2JIS(textchar &ch) = 0;

 virtual void JIS2ShiftJIS(textchar &ch) = 0;

 virtual void JIS2Kuten(textchar &ch) = 0;

 virtual void Kuten2JIS(textchar &ch) = 0;


 virtual textchar ShiftJIS2Unicode(PlatformChar ch) = 0;

 virtual textchar ShiftJIS2JIS(PlatformChar ch) = 0;

 typedef enum {
 kCharInput = 0,
 kShiftJIS,
 kJIS,
 kKuten,
 kBig5,
 kGB,
 kKorean,
 kUnicode
 } encodingType;
 virtual encodingType PopupIndexToEncodingType(int32 popupIndex) = 0;

 virtual UTF32TextChar StringToCharacterCode(PMString& str, encodingType encoding) = 0;

 virtual PMString CharacterCodeToString(UTF32TextChar code, encodingType encoding) = 0;

 virtual uint32 GetHexCode(PMString& s) = 0;

 virtual textchar GetKutenCode(PMString& s) = 0;

 virtual bool16 IsHex(uchar c) = 0;

 virtual bool16 IsDecimal(uchar c) = 0;

 virtual int32 IntValue(uchar c) = 0;

 // if script is -1 functions use script of PMString constructor for conversion
 virtual UTF32TextChar DoubleByteEncoding2unicode( uchar16 ch, uint8 script = -1 ) = 0;

 virtual bool16 DoubleByteIsValidUnicode(const textchar &inChar, uint8 script = -1 ) = 0;

 virtual uchar16 unicode2DoubleByteEncoding( const UTF32TextChar &ch, uint8 script = -1 ) = 0;


 virtual textchar FontBasedPlatformEncoding2Unicode( PlatformChar platformChar, IPMFont *transFont ) = 0;

 virtual PlatformChar FontBasedUnicode2PlatformEncoding( UTF32TextChar unicodeChar, IPMFont *transFont, uint8 script = -1 ) = 0;

 // routines for parsing 2-byte text.
 virtual bool16 IsPossibleLeadByte(uchar charByte, int8 script) = 0;

 virtual bool16 IsPossibleSecondByte(uchar charByte, int8 script) = 0;

 virtual bool16 IsDoubleByteScript(int8 script) = 0;


 virtual bool16 ValidLineBreakAfterIndex(const PMString &, CharCounter index) = 0;
};


namespace EncodingUtils
{
 // routines for parsing 2-byte text.
 bool16 IsPossibleLeadByte(uchar charByte, int8 script);
 bool16 IsPossibleSecondByte(uchar charByte, int8 script);
}



#endif /* _H_EncodingUtils */