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nsUnicodeToUTF32.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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00004 /* ***** BEGIN LICENSE BLOCK *****
00005  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00006  *
00007  * The contents of this file are subject to the Mozilla Public License Version
00008  * 1.1 (the "License"); you may not use this file except in compliance with
00009  * the License. You may obtain a copy of the License at
00010  * http://www.mozilla.org/MPL/
00011  *
00012  * Software distributed under the License is distributed on an "AS IS" basis,
00013  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00014  * for the specific language governing rights and limitations under the
00015  * License.
00016  *
00017  * The Original Code is Mozilla Communicator client code.
00018  *
00019  * The Initial Developer of the Original Code is
00020  * Netscape Communications Corporation.
00021  * Portions created by the Initial Developer are Copyright (C) 1998
00022  * the Initial Developer. All Rights Reserved.
00023  *
00024  * Contributor(s):
00025  *   Jungshik Shin <jshin@mailaps.org>
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either of the GNU General Public License Version 2 or later (the "GPL"),
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00039  * ***** END LICENSE BLOCK ***** */
00040 
00041 #ifndef nsUnicodeToUTF32_h___
00042 #define nsUnicodeToUTF32_h___
00043 
00044 //----------------------------------------------------------------------
00045 // Class nsUnicodeToUTF32 [declaration]  
00046 
00054 class nsUnicodeToUTF32 : public nsIUnicodeEncoder
00055 {
00056    NS_DECL_ISUPPORTS
00057 
00058 public:
00059 
00063   nsUnicodeToUTF32() {mHighSurrogate = 0;};
00064   virtual ~nsUnicodeToUTF32() {};
00065 
00066 protected:
00067   PRUnichar  mHighSurrogate;
00068 
00069   NS_IMETHOD GetMaxLength(const PRUnichar * aSrc, PRInt32 aSrcLength, 
00070                           PRInt32 * aDestLength);
00071 
00072   //--------------------------------------------------------------------
00073   // Subclassing of nsIUnicodeEncoder class [declaration]
00074 
00075   NS_IMETHOD Reset() {mHighSurrogate = 0; return NS_OK;};
00076   NS_IMETHOD FillInfo(PRUint32* aInfo);
00077   NS_IMETHOD SetOutputErrorBehavior(PRInt32 aBehavior, 
00078                                     nsIUnicharEncoder * aEncoder, 
00079                                     PRUnichar aChar) 
00080                                     {return NS_OK;};
00081 
00082 };
00083 
00084 //----------------------------------------------------------------------
00085 // Class nsUnicodeToUTF32BE [declaration]  
00086 
00094 class nsUnicodeToUTF32BE : public nsUnicodeToUTF32
00095 {
00096 public:
00097 
00098   //--------------------------------------------------------------------
00099   // Subclassing of nsIUnicodeEncoder class [declaration]
00100 
00101   NS_IMETHOD Convert(const PRUnichar * aSrc, PRInt32 * aSrcLength, 
00102                      char * aDest, PRInt32 * aDestLength);
00103   NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength);
00104 
00105 
00106 };
00107 
00108 //----------------------------------------------------------------------
00109 // Class nsUnicodeToUTF32LE [declaration]  
00110 
00118 class nsUnicodeToUTF32LE : public nsUnicodeToUTF32
00119 {
00120 public:
00121 
00122   //--------------------------------------------------------------------
00123   // Subclassing of nsIUnicodeEncoder class [declaration]
00124   NS_IMETHOD Convert(const PRUnichar * aSrc, PRInt32 * aSrcLength, 
00125                      char * aDest, PRInt32 * aDestLength);
00126   NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength);
00127 
00128 };
00129 
00130 #endif /* nsUnicodeToUTF32_h___ */
00131