WebCore/bidi.h

   1 /*
   2  * This file is part of the html renderer for KDE.
   3  *
   4  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
   5  * Copyright (C) 2003 Apple Computer, Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public License
  18  * along with this library; see the file COPYING.LIB.  If not, write to
  19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  * Boston, MA 02110-1301, USA.
  21  *
  22  */
  23
  24 #ifndef bidi_h
  25 #define bidi_h
  26
  27 #include "BidiResolver.h"
  28
  29 namespace WebCore {
  30
  31 class RenderArena;
  32 class RenderBlock;
  33 class RenderObject;
  34 class InlineBox;
  35
  36 struct BidiRun : BidiCharacterRun {
  37     BidiRun(int start, int stop, RenderObject* object, BidiContext* context, WTF::Unicode::Direction dir)
  38         : BidiCharacterRun(start, stop, context, dir)
  39         , m_object(object)
  40         , m_box(0)
  41     {
  42     }
  43
  44     void destroy();
  45
  46     // Overloaded new operator.
  47     void* operator new(size_t, RenderArena*) throw();
  48
  49     // Overridden to prevent the normal delete from being called.
  50     void operator delete(void*, size_t);
  51
  52     BidiRun* next() { return static_cast<BidiRun*>(m_next); }
  53
  54 private:
  55     // The normal operator new is disallowed.
  56     void* operator new(size_t) throw();
  57
  58 public:
  59     RenderObject* m_object;
  60     InlineBox* m_box;
  61 };
  62
  63 } // namespace WebCore
  64
  65 #endif // bidi_h