/** * This file is part of the DOM implementation for KDE. * * Copyright (C) 2000 Lars Knoll (knoll@kde.org) * Copyright (C) 2006 Apple Computer, Inc. * * 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. * */ #include "config.h" #include "RenderBR.h" #include "Document.h" #include "InlineTextBox.h" #include "VisiblePosition.h" namespace WebCore { RenderBR::RenderBR(Node* node) : RenderText(node, new StringImpl("\n")) , m_lineHeight(-1) { } RenderBR::~RenderBR() { } InlineBox* RenderBR::createInlineBox(bool makePlaceholder, bool isRootLineBox, bool isOnlyRun) { // We only treat a box as text for a
if we are on a line by ourself or in strict mode // (Note the use of strict mode. In "almost strict" mode, we don't treat the box for
as text.) InlineTextBox* box = static_cast(RenderText::createInlineBox(makePlaceholder, isRootLineBox, isOnlyRun)); box->setIsText(isOnlyRun || document()->inStrictMode()); return box; } short RenderBR::baselinePosition(bool firstLine, bool isRootLineBox) const { if (firstTextBox() && !firstTextBox()->isText()) return 0; return RenderText::baselinePosition(firstLine, isRootLineBox); } short RenderBR::lineHeight(bool firstLine, bool isRootLineBox) const { if (firstTextBox() && !firstTextBox()->isText()) return 0; if (firstLine) { RenderStyle* s = style(firstLine); Length lh = s->lineHeight(); if (lh.isNegative()) { if (s == style()) { if (m_lineHeight == -1) m_lineHeight = RenderObject::lineHeight(false); return m_lineHeight; } return s->font().lineSpacing(); } if (lh.isPercent()) return lh.calcMinValue(s->fontSize()); return lh.value(); } if (m_lineHeight == -1) m_lineHeight = RenderObject::lineHeight(false); return m_lineHeight; } void RenderBR::setStyle(RenderStyle* newStyle) { RenderText::setStyle(newStyle); m_lineHeight = -1; } int RenderBR::caretMinOffset() const { return 0; } int RenderBR::caretMaxOffset() const { return 1; } unsigned RenderBR::caretMaxRenderedOffset() const { return 1; } VisiblePosition RenderBR::positionForCoordinates(int /*x*/, int /*y*/) { return VisiblePosition(element(), 0, DOWNSTREAM); } InlineBox* RenderBR::inlineBox(int /*offset*/, EAffinity /*affinity*/) { return firstTextBox(); } } // namespace WebCore