LCOV - code coverage report
Current view: directory - gfx/thebes - gfxScriptItemizer.h (source / functions) Found Hit Coverage
Test: app.info Lines: 8 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2                 :  * ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Corporation code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Mozilla Corporation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Jonathan Kew <jfkthame@gmail.com>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  *
      37                 :  * This file is based on usc_impl.c from ICU 4.2.0.1, slightly adapted
      38                 :  * for use within Mozilla Gecko, separate from a standard ICU build.
      39                 :  *
      40                 :  * The original ICU license of the code follows:
      41                 :  *
      42                 :  * ICU License - ICU 1.8.1 and later
      43                 :  *
      44                 :  * COPYRIGHT AND PERMISSION NOTICE
      45                 :  * 
      46                 :  * Copyright (c) 1995-2009 International Business Machines Corporation and
      47                 :  * others
      48                 :  *
      49                 :  * All rights reserved.
      50                 :  *
      51                 :  * Permission is hereby granted, free of charge, to any person obtaining a
      52                 :  * copy of this software and associated documentation files (the "Software"),
      53                 :  * to deal in the Software without restriction, including without limitation
      54                 :  * the rights to use, copy, modify, merge, publish, distribute, and/or sell
      55                 :  * copies of the Software, and to permit persons to whom the Software is
      56                 :  * furnished to do so, provided that the above copyright notice(s) and this
      57                 :  * permission notice appear in all copies of the Software and that both the
      58                 :  * above copyright notice(s) and this permission notice appear in supporting
      59                 :  * documentation.
      60                 :  *
      61                 :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      62                 :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      63                 :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
      64                 :  * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE
      65                 :  * BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES,
      66                 :  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
      67                 :  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
      68                 :  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
      69                 :  * SOFTWARE.
      70                 :  *
      71                 :  * Except as contained in this notice, the name of a copyright holder shall
      72                 :  * not be used in advertising or otherwise to promote the sale, use or other
      73                 :  * dealings in this Software without prior written authorization of the
      74                 :  * copyright holder.
      75                 :  *
      76                 :  * All trademarks and registered trademarks mentioned herein are the property
      77                 :  * of their respective owners. 
      78                 :  */
      79                 : 
      80                 : #ifndef GFX_SCRIPTITEMIZER_H
      81                 : #define GFX_SCRIPTITEMIZER_H
      82                 : 
      83                 : #include "mozilla/StandardInteger.h"
      84                 : #include "prtypes.h"
      85                 : #include "harfbuzz/hb.h"
      86                 : #include "nsUnicodeScriptCodes.h"
      87                 : 
      88                 : #define PAREN_STACK_DEPTH 32
      89                 : 
      90                 : class gfxScriptItemizer
      91                 : {
      92                 : public:
      93                 :     gfxScriptItemizer(const PRUnichar *src, PRUint32 length);
      94                 : 
      95                 :     void SetText(const PRUnichar *src, PRUint32 length);
      96                 : 
      97                 :     bool Next(PRUint32& aRunStart, PRUint32& aRunLimit,
      98                 :               PRInt32& aRunScript);
      99                 : 
     100                 : protected:
     101               0 :     void reset() {
     102               0 :         scriptStart = 0;
     103               0 :         scriptLimit = 0;
     104               0 :         scriptCode  = MOZ_SCRIPT_INVALID;
     105               0 :         parenSP     = -1;
     106               0 :         pushCount   =  0;
     107               0 :         fixupCount  =  0;
     108               0 :     }
     109                 : 
     110                 :     void push(PRInt32 pairIndex, PRInt32 scriptCode);
     111                 :     void pop();
     112                 :     void fixup(PRInt32 scriptCode);
     113                 : 
     114                 :     struct ParenStackEntry {
     115                 :         PRInt32 pairIndex;
     116                 :         PRInt32 scriptCode;
     117                 :     };
     118                 : 
     119                 :     const PRUnichar *textPtr;
     120                 :     PRUint32 textLength;
     121                 : 
     122                 :     PRUint32 scriptStart;
     123                 :     PRUint32 scriptLimit;
     124                 :     PRInt32  scriptCode;
     125                 : 
     126                 :     struct ParenStackEntry parenStack[PAREN_STACK_DEPTH];
     127                 :     PRUint32 parenSP;
     128                 :     PRUint32 pushCount;
     129                 :     PRUint32 fixupCount;
     130                 : };
     131                 : 
     132                 : #endif /* GFX_SCRIPTITEMIZER_H */

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