1 /* 2 * Copyright (c) 2012, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef LayoutBoxExtent_h 32 #define LayoutBoxExtent_h 33 34 #include "platform/LayoutUnit.h" 35 #include "platform/PlatformExport.h" 36 #include "platform/text/TextDirection.h" 37 #include "platform/text/WritingMode.h" 38 39 namespace blink { 40 41 class PLATFORM_EXPORT LayoutBoxExtent { 42 public: 43 LayoutBoxExtent() : m_top(0), m_right(0), m_bottom(0), m_left(0) { } 44 LayoutBoxExtent(LayoutUnit top, LayoutUnit right, LayoutUnit bottom, LayoutUnit left) 45 : m_top(top), m_right(right), m_bottom(bottom), m_left(left) { } 46 47 inline LayoutUnit top() const { return m_top; } 48 inline LayoutUnit right() const { return m_right; } 49 inline LayoutUnit bottom() const { return m_bottom; } 50 inline LayoutUnit left() const { return m_left; } 51 52 inline void setTop(LayoutUnit value) { m_top = value; } 53 inline void setRight(LayoutUnit value) { m_right = value; } 54 inline void setBottom(LayoutUnit value) { m_bottom = value; } 55 inline void setLeft(LayoutUnit value) { m_left = value; } 56 57 LayoutUnit logicalTop(WritingMode) const; 58 LayoutUnit logicalBottom(WritingMode) const; 59 LayoutUnit logicalLeft(WritingMode) const; 60 LayoutUnit logicalRight(WritingMode) const; 61 62 LayoutUnit before(WritingMode) const; 63 LayoutUnit after(WritingMode) const; 64 LayoutUnit start(WritingMode, TextDirection) const; 65 LayoutUnit end(WritingMode, TextDirection) const; 66 67 void setBefore(WritingMode, LayoutUnit); 68 void setAfter(WritingMode, LayoutUnit); 69 void setStart(WritingMode, TextDirection, LayoutUnit); 70 void setEnd(WritingMode, TextDirection, LayoutUnit); 71 72 LayoutUnit& mutableLogicalLeft(WritingMode); 73 LayoutUnit& mutableLogicalRight(WritingMode); 74 75 LayoutUnit& mutableBefore(WritingMode); 76 LayoutUnit& mutableAfter(WritingMode); 77 78 private: 79 LayoutUnit m_top; 80 LayoutUnit m_right; 81 LayoutUnit m_bottom; 82 LayoutUnit m_left; 83 }; 84 85 } // namespace blink 86 87 #endif // LayoutBoxExtent_h 88
