2 * (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 2000 Dirk Mueller (mueller@kde.org)
4 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
24 #include "RenderTextFragment.h"
26 #include "RenderBlock.h"
31 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str, int startOffset, int length)
32 : RenderText(node, str ? str->substring(startOffset, length) : PassRefPtr<StringImpl>(0))
33 , m_start(startOffset)
39 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str)
40 : RenderText(node, str)
42 , m_end(str ? str->length() : 0)
43 , m_contentString(str)
48 RenderTextFragment::~RenderTextFragment()
52 PassRefPtr<StringImpl> RenderTextFragment::originalText() const
55 RefPtr<StringImpl> result = ((e && e->isTextNode()) ? toText(e)->dataImpl() : contentString());
58 return result->substring(start(), end());
61 void RenderTextFragment::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
63 RenderText::styleDidChange(diff, oldStyle);
65 if (RenderBlock* block = blockForAccompanyingFirstLetter()) {
66 block->style()->removeCachedPseudoStyle(FIRST_LETTER);
67 block->updateFirstLetter();
71 void RenderTextFragment::willBeDestroyed()
74 m_firstLetter->destroy();
75 RenderText::willBeDestroyed();
78 void RenderTextFragment::setText(PassRefPtr<StringImpl> text, bool force)
80 RenderText::setText(text, force);
85 ASSERT(!m_contentString);
86 m_firstLetter->destroy();
88 if (Node* t = node()) {
89 ASSERT(!t->renderer());
95 void RenderTextFragment::transformText()
97 // Don't reset first-letter here because we are only transforming the truncated fragment.
98 if (RefPtr<StringImpl> textToTransform = originalText())
99 RenderText::setText(textToTransform.release(), true);
102 UChar RenderTextFragment::previousCharacter() const
106 StringImpl* original = ((e && e->isTextNode()) ? toText(e)->dataImpl() : contentString());
107 if (original && start() <= original->length())
108 return (*original)[start() - 1];
111 return RenderText::previousCharacter();
114 RenderBlock* RenderTextFragment::blockForAccompanyingFirstLetter() const
118 for (RenderObject* block = m_firstLetter->parent(); block; block = block->parent()) {
119 if (block->style()->hasPseudoStyle(FIRST_LETTER) && block->canHaveChildren() && block->isRenderBlock())
120 return toRenderBlock(block);
125 } // namespace WebCore