18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/** 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2006 Apple Computer, Inc. 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is free software; you can redistribute it and/or 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modify it under the terms of the GNU Library General Public 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * License as published by the Free Software Foundation; either 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * version 2 of the License, or (at your option) any later version. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is distributed in the hope that it will be useful, 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * but WITHOUT ANY WARRANTY; without even the implied warranty of 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Library General Public License for more details. 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * You should have received a copy of the GNU Library General Public License 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * along with this library; see the file COPYING.LIB. If not, write to 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Boston, MA 02110-1301, USA. 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderBR.h" 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Document.h" 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "InlineTextBox.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "VisiblePosition.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBR::RenderBR(Node* node) 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project : RenderText(node, StringImpl::create("\n")) 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_lineHeight(-1) 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBR::~RenderBR() 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBR::lineHeight(bool firstLine) const 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (firstLine && document()->usesFirstLineRules()) { 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderStyle* s = style(firstLine); 45a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (s != style()) 46a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return s->computedLineHeight(); 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_lineHeight == -1) 50a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_lineHeight = style()->computedLineHeight(); 51a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_lineHeight; 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBR::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderText::styleDidChange(diff, oldStyle); 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_lineHeight = -1; 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBR::caretMinOffset() const 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBR::caretMaxOffset() const 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 1; 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectunsigned RenderBR::caretMaxRenderedOffset() const 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 1; 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianVisiblePosition RenderBR::positionForPoint(const IntPoint&) 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return createVisiblePosition(0, DOWNSTREAM); 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 82