1 /* 2 Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 Copyright (C) 2006, 2008 Apple Inc. All rights reserved. 4 Copyright (c) 2012, Google Inc. All rights reserved. 5 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. 10 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. 15 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. 20 */ 21 22 #ifndef LengthBox_h 23 #define LengthBox_h 24 25 #include "core/platform/Length.h" 26 #include "core/platform/text/TextDirection.h" 27 #include "core/platform/text/WritingMode.h" 28 29 namespace WebCore { 30 31 class RenderStyle; 32 33 struct LengthBox { 34 LengthBox() 35 { 36 } 37 38 LengthBox(LengthType t) 39 : m_left(t) 40 , m_right(t) 41 , m_top(t) 42 , m_bottom(t) 43 { 44 } 45 46 LengthBox(int v) 47 : m_left(Length(v, Fixed)) 48 , m_right(Length(v, Fixed)) 49 , m_top(Length(v, Fixed)) 50 , m_bottom(Length(v, Fixed)) 51 { 52 } 53 54 LengthBox(Length t, Length r, Length b, Length l) 55 : m_left(l) 56 , m_right(r) 57 , m_top(t) 58 , m_bottom(b) 59 { 60 } 61 62 LengthBox(int t, int r, int b, int l) 63 : m_left(Length(l, Fixed)) 64 , m_right(Length(r, Fixed)) 65 , m_top(Length(t, Fixed)) 66 , m_bottom(Length(b, Fixed)) 67 { 68 } 69 70 Length left() const { return m_left; } 71 Length right() const { return m_right; } 72 Length top() const { return m_top; } 73 Length bottom() const { return m_bottom; } 74 75 Length logicalLeft(WritingMode) const; 76 Length logicalRight(WritingMode) const; 77 78 Length before(WritingMode) const; 79 Length after(WritingMode) const; 80 Length start(WritingMode, TextDirection) const; 81 Length end(WritingMode, TextDirection) const; 82 83 bool operator==(const LengthBox& o) const 84 { 85 return m_left == o.m_left && m_right == o.m_right && m_top == o.m_top && m_bottom == o.m_bottom; 86 } 87 88 bool operator!=(const LengthBox& o) const 89 { 90 return !(*this == o); 91 } 92 93 bool nonZero() const 94 { 95 return !(m_left.isZero() && m_right.isZero() && m_top.isZero() && m_bottom.isZero()); 96 } 97 98 Length m_left; 99 Length m_right; 100 Length m_top; 101 Length m_bottom; 102 }; 103 104 } // namespace WebCore 105 106 #endif // LengthBox_h 107