1 /* 2 * Copyright (C) 2013 Adobe Systems Incorporated. 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following 13 * disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef IntRectExtent_h 31 #define IntRectExtent_h 32 33 #include "platform/geometry/LayoutRect.h" 34 35 namespace WebCore { 36 37 class IntRectExtent { 38 public: IntRectExtent()39 IntRectExtent() 40 : m_top(0) 41 , m_right(0) 42 , m_bottom(0) 43 , m_left(0) 44 { 45 } 46 IntRectExtent(int top,int right,int bottom,int left)47 IntRectExtent(int top, int right, int bottom, int left) 48 : m_top(top) 49 , m_right(right) 50 , m_bottom(bottom) 51 , m_left(left) 52 { 53 } 54 top()55 int top() const { return m_top; } setTop(int top)56 void setTop(int top) { m_top = top; } 57 right()58 int right() const { return m_right; } setRight(int right)59 void setRight(int right) { m_right = right; } 60 bottom()61 int bottom() const { return m_bottom; } setBottom(int bottom)62 void setBottom(int bottom) { m_bottom = bottom; } 63 left()64 int left() const { return m_left; } setLeft(int left)65 void setLeft(int left) { m_left = left; } 66 isZero()67 bool isZero() const { return !left() && !right() && !top() && !bottom(); } 68 expandRect(LayoutRect & rect)69 void expandRect(LayoutRect& rect) const 70 { 71 if (isZero()) 72 return; 73 74 rect.move(-left(), -top()); 75 rect.expand(left() + right(), top() + bottom()); 76 } 77 78 private: 79 int m_top; 80 int m_right; 81 int m_bottom; 82 int m_left; 83 }; 84 85 inline bool operator==(const IntRectExtent& a, const IntRectExtent& b) 86 { 87 return a.top() == b.top() 88 && a.right() == b.right() 89 && a.bottom() == b.bottom() 90 && a.left() == b.left(); 91 } 92 93 inline bool operator!=(const IntRectExtent& a, const IntRectExtent& b) 94 { 95 return !(a == b); 96 } 97 98 inline void operator+=(IntRectExtent& a, const IntRectExtent& b) 99 { 100 a.setTop(a.top() + b.top()); 101 a.setRight(a.right() + b.right()); 102 a.setBottom(a.bottom() + b.bottom()); 103 a.setLeft(a.left() + b.left()); 104 } 105 106 } // namespace WebCore 107 108 109 #endif // IntRectExtent_h 110