1 /* 2 * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef IntSize_h 27 #define IntSize_h 28 29 #include <wtf/Platform.h> 30 31 #if PLATFORM(CG) 32 typedef struct CGSize CGSize; 33 #endif 34 35 #if PLATFORM(MAC) 36 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES 37 typedef struct CGSize NSSize; 38 #else 39 typedef struct _NSSize NSSize; 40 #endif 41 #endif 42 43 #if PLATFORM(WIN) 44 typedef struct tagSIZE SIZE; 45 #elif PLATFORM(QT) 46 #include <qglobal.h> 47 QT_BEGIN_NAMESPACE 48 class QSize; 49 QT_END_NAMESPACE 50 #endif 51 52 namespace WebCore { 53 54 class IntSize { 55 public: IntSize()56 IntSize() : m_width(0), m_height(0) { } IntSize(int width,int height)57 IntSize(int width, int height) : m_width(width), m_height(height) { } 58 width()59 int width() const { return m_width; } height()60 int height() const { return m_height; } 61 setWidth(int width)62 void setWidth(int width) { m_width = width; } setHeight(int height)63 void setHeight(int height) { m_height = height; } 64 isEmpty()65 bool isEmpty() const { return m_width <= 0 || m_height <= 0; } 66 expand(int width,int height)67 void expand(int width, int height) 68 { 69 m_width += width; 70 m_height += height; 71 } 72 scale(float scale)73 void scale(float scale) 74 { 75 m_width = static_cast<int>(static_cast<float>(m_width) * scale); 76 m_height = static_cast<int>(static_cast<float>(m_height) * scale); 77 } 78 expandedTo(const IntSize & other)79 IntSize expandedTo(const IntSize& other) const 80 { 81 return IntSize(m_width > other.m_width ? m_width : other.m_width, 82 m_height > other.m_height ? m_height : other.m_height); 83 } 84 shrunkTo(const IntSize & other)85 IntSize shrunkTo(const IntSize& other) const 86 { 87 return IntSize(m_width < other.m_width ? m_width : other.m_width, 88 m_height < other.m_height ? m_height : other.m_height); 89 } 90 clampNegativeToZero()91 void clampNegativeToZero() 92 { 93 *this = expandedTo(IntSize()); 94 } 95 96 #if PLATFORM(CG) 97 explicit IntSize(const CGSize&); // don't do this implicitly since it's lossy 98 operator CGSize() const; 99 #endif 100 101 #if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) 102 explicit IntSize(const NSSize &); // don't do this implicitly since it's lossy 103 operator NSSize() const; 104 #endif 105 106 #if PLATFORM(WIN) 107 IntSize(const SIZE&); 108 operator SIZE() const; 109 #endif 110 111 #if PLATFORM(QT) 112 IntSize(const QSize&); 113 operator QSize() const; 114 #endif 115 116 117 private: 118 int m_width, m_height; 119 }; 120 121 inline IntSize& operator+=(IntSize& a, const IntSize& b) 122 { 123 a.setWidth(a.width() + b.width()); 124 a.setHeight(a.height() + b.height()); 125 return a; 126 } 127 128 inline IntSize& operator-=(IntSize& a, const IntSize& b) 129 { 130 a.setWidth(a.width() - b.width()); 131 a.setHeight(a.height() - b.height()); 132 return a; 133 } 134 135 inline IntSize operator+(const IntSize& a, const IntSize& b) 136 { 137 return IntSize(a.width() + b.width(), a.height() + b.height()); 138 } 139 140 inline IntSize operator-(const IntSize& a, const IntSize& b) 141 { 142 return IntSize(a.width() - b.width(), a.height() - b.height()); 143 } 144 145 inline IntSize operator-(const IntSize& size) 146 { 147 return IntSize(-size.width(), -size.height()); 148 } 149 150 inline bool operator==(const IntSize& a, const IntSize& b) 151 { 152 return a.width() == b.width() && a.height() == b.height(); 153 } 154 155 inline bool operator!=(const IntSize& a, const IntSize& b) 156 { 157 return a.width() != b.width() || a.height() != b.height(); 158 } 159 160 } // namespace WebCore 161 162 #endif // IntSize_h 163