1 /* 2 * Copyright (C) 2003, 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2005 Nokia. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef FloatSize_h 28 #define FloatSize_h 29 30 #include <wtf/Platform.h> 31 32 #if PLATFORM(CG) 33 typedef struct CGSize CGSize; 34 #endif 35 36 #if PLATFORM(MAC) 37 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES 38 typedef struct CGSize NSSize; 39 #else 40 typedef struct _NSSize NSSize; 41 #endif 42 #endif 43 44 namespace WebCore 45 { 46 47 class IntSize; 48 49 class FloatSize 50 { 51 public: FloatSize()52 FloatSize() : m_width(0), m_height(0) { } FloatSize(float width,float height)53 FloatSize(float width, float height) : m_width(width), m_height(height) { } 54 FloatSize(const IntSize &); 55 56 static FloatSize narrowPrecision(double width, double height); 57 width()58 float width() const 59 { 60 return m_width; 61 } height()62 float height() const 63 { 64 return m_height; 65 } 66 setWidth(float width)67 void setWidth(float width) 68 { 69 m_width = width; 70 } setHeight(float height)71 void setHeight(float height) 72 { 73 m_height = height; 74 } 75 isEmpty()76 bool isEmpty() const 77 { 78 return m_width <= 0 || m_height <= 0; 79 } 80 expandedTo(const FloatSize & other)81 FloatSize expandedTo(const FloatSize &other) const 82 { 83 return FloatSize(m_width > other.m_width ? m_width : other.m_width, 84 m_height > other.m_height ? m_height : other.m_height); 85 } 86 87 #if PLATFORM(CG) 88 explicit FloatSize(const CGSize &); // don't do this implicitly since it's lossy 89 operator CGSize() const; 90 #endif 91 92 #if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) 93 explicit FloatSize(const NSSize &); // don't do this implicitly since it's lossy 94 operator NSSize() const; 95 #endif 96 97 private: 98 float m_width, m_height; 99 }; 100 101 inline FloatSize &operator+=(FloatSize &a, const FloatSize &b) 102 { 103 a.setWidth(a.width() + b.width()); 104 a.setHeight(a.height() + b.height()); 105 return a; 106 } 107 108 inline FloatSize &operator-=(FloatSize &a, const FloatSize &b) 109 { 110 a.setWidth(a.width() - b.width()); 111 a.setHeight(a.height() - b.height()); 112 return a; 113 } 114 115 inline FloatSize operator+(const FloatSize &a, const FloatSize &b) 116 { 117 return FloatSize(a.width() + b.width(), a.height() + b.height()); 118 } 119 120 inline FloatSize operator-(const FloatSize &a, const FloatSize &b) 121 { 122 return FloatSize(a.width() - b.width(), a.height() - b.height()); 123 } 124 125 inline FloatSize operator-(const FloatSize &size) 126 { 127 return FloatSize(-size.width(), -size.height()); 128 } 129 130 inline bool operator==(const FloatSize &a, const FloatSize &b) 131 { 132 return a.width() == b.width() && a.height() == b.height(); 133 } 134 135 inline bool operator!=(const FloatSize &a, const FloatSize &b) 136 { 137 return a.width() != b.width() || a.height() != b.height(); 138 } 139 140 } // namespace WebCore 141 142 #endif // FloatSize_h 143