/* * (C) 1999 Lars Knoll (knoll@kde.org) * (C) 2000 Dirk Mueller (mueller@kde.org) * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * */ #ifndef RenderTextFragment_h #define RenderTextFragment_h #include "RenderText.h" namespace WebCore { // Used to represent a text substring of an element, e.g., for text runs that are split because of // first letter and that must therefore have different styles (and positions in the render tree). // We cache offsets so that text transformations can be applied in such a way that we can recover // the original unaltered string from our corresponding DOM node. class RenderTextFragment : public RenderText { public: RenderTextFragment(Node*, StringImpl*, int startOffset, int length); RenderTextFragment(Node*, StringImpl*); virtual bool isTextFragment() const { return true; } virtual void destroy(); unsigned start() const { return m_start; } unsigned end() const { return m_end; } RenderObject* firstLetter() const { return m_firstLetter; } void setFirstLetter(RenderObject* firstLetter) { m_firstLetter = firstLetter; } StringImpl* contentString() const { return m_contentString.get(); } virtual PassRefPtr originalText() const; private: virtual void setTextInternal(PassRefPtr); virtual UChar previousCharacter(); unsigned m_start; unsigned m_end; RefPtr m_contentString; RenderObject* m_firstLetter; }; } // namespace WebCore #endif // RenderTextFragment_h