1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. 4 * All right reserved. 5 * Copyright (C) 2010 Google Inc. All rights reserved. 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 THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LINE_LINE_BREAKER_H_ 25 #define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LINE_LINE_BREAKER_H_ 26 27 #include "third_party/blink/renderer/core/layout/api/line_layout_block_flow.h" 28 #include "third_party/blink/renderer/core/layout/line/inline_iterator.h" 29 #include "third_party/blink/renderer/core/layout/line/line_info.h" 30 #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" 31 #include "third_party/blink/renderer/platform/wtf/vector.h" 32 33 namespace blink { 34 35 enum WhitespacePosition { kLeadingWhitespace, kTrailingWhitespace }; 36 37 struct LayoutTextInfo; 38 39 class LineBreaker { 40 STACK_ALLOCATED(); 41 42 public: 43 friend class BreakingContext; LineBreaker(LineLayoutBlockFlow block)44 LineBreaker(LineLayoutBlockFlow block) : block_(block) { Reset(); } 45 46 InlineIterator NextLineBreak(InlineBidiResolver&, 47 LineInfo&, 48 LayoutTextInfo&, 49 WordMeasurements&); 50 LineWasHyphenated()51 bool LineWasHyphenated() { return hyphenated_; } PositionedObjects()52 const Vector<LineLayoutBox>& PositionedObjects() { 53 return positioned_objects_; 54 } Clear()55 EClear Clear() { return clear_; } 56 57 private: 58 void Reset(); 59 60 void SkipLeadingWhitespace(InlineBidiResolver&, LineInfo&, LineWidth&); 61 62 LineLayoutBlockFlow block_; 63 bool hyphenated_; 64 EClear clear_; 65 Vector<LineLayoutBox> positioned_objects_; 66 }; 67 68 } // namespace blink 69 70 #endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LINE_LINE_BREAKER_H_ 71