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IntSize.h
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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)
32typedef struct CGSize CGSize;
33#endif
34
35#if PLATFORM(MAC)
36#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
37typedef struct CGSize NSSize;
38#else
39typedef struct _NSSize NSSize;
40#endif
41#endif
42
43#if PLATFORM(WIN)
44typedef struct tagSIZE SIZE;
45#elif PLATFORM(QT)
46#include <qglobal.h>
47QT_BEGIN_NAMESPACE
48class QSize;
49QT_END_NAMESPACE
50#endif
51#if PLATFORM(SYMBIAN)
52class TSize;
53#endif
54
55namespace WebCore {
56
57class IntSize {
58public:
59 IntSize() : m_width(0), m_height(0) { }
60 IntSize(int width, int height) : m_width(width), m_height(height) { }
61
62 int width() const { return m_width; }
63 int height() const { return m_height; }
64
65 void setWidth(int width) { m_width = width; }
66 void setHeight(int height) { m_height = height; }
67
68 bool isEmpty() const { return m_width <= 0 || m_height <= 0; }
69
70 IntSize expandedTo(const IntSize& other) const
71 {
72 return IntSize(m_width > other.m_width ? m_width : other.m_width,
73 m_height > other.m_height ? m_height : other.m_height);
74 }
75
76 IntSize shrunkTo(const IntSize& other) const
77 {
78 return IntSize(m_width < other.m_width ? m_width : other.m_width,
79 m_height < other.m_height ? m_height : other.m_height);
80 }
81
82 void clampNegativeToZero()
83 {
84 *this = expandedTo(IntSize());
85 }
86
87#if PLATFORM(CG)
88 explicit IntSize(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 IntSize(const NSSize &); // don't do this implicitly since it's lossy
94 operator NSSize() const;
95#endif
96
97#if PLATFORM(WIN)
98 IntSize(const SIZE&);
99 operator SIZE() const;
100#endif
101
102#if PLATFORM(QT)
103 IntSize(const QSize&);
104 operator QSize() const;
105#endif
106#if PLATFORM(SYMBIAN)
107 IntSize(const TSize&);
108 operator TSize() const;
109#endif
110
111
112private:
113 int m_width, m_height;
114};
115
116inline IntSize& operator+=(IntSize& a, const IntSize& b)
117{
118 a.setWidth(a.width() + b.width());
119 a.setHeight(a.height() + b.height());
120 return a;
121}
122
123inline IntSize& operator-=(IntSize& a, const IntSize& b)
124{
125 a.setWidth(a.width() - b.width());
126 a.setHeight(a.height() - b.height());
127 return a;
128}
129
130inline IntSize operator+(const IntSize& a, const IntSize& b)
131{
132 return IntSize(a.width() + b.width(), a.height() + b.height());
133}
134
135inline IntSize operator-(const IntSize& a, const IntSize& b)
136{
137 return IntSize(a.width() - b.width(), a.height() - b.height());
138}
139
140inline IntSize operator-(const IntSize& size)
141{
142 return IntSize(-size.width(), -size.height());
143}
144
145inline bool operator==(const IntSize& a, const IntSize& b)
146{
147 return a.width() == b.width() && a.height() == b.height();
148}
149
150inline bool operator!=(const IntSize& a, const IntSize& b)
151{
152 return a.width() != b.width() || a.height() != b.height();
153}
154
155} // namespace WebCore
156
157#endif // IntSize_h
WebCore::IntSize
Definition: IntSize.h:57
WebCore::IntSize::width
int width() const
Definition: IntSize.h:62
WebCore::IntSize::IntSize
IntSize(int width, int height)
Definition: IntSize.h:60
WebCore::IntSize::expandedTo
IntSize expandedTo(const IntSize &other) const
Definition: IntSize.h:70
WebCore::IntSize::clampNegativeToZero
void clampNegativeToZero()
Definition: IntSize.h:82
WebCore::IntSize::setHeight
void setHeight(int height)
Definition: IntSize.h:66
WebCore::IntSize::height
int height() const
Definition: IntSize.h:63
WebCore::IntSize::shrunkTo
IntSize shrunkTo(const IntSize &other) const
Definition: IntSize.h:76
WebCore::IntSize::setWidth
void setWidth(int width)
Definition: IntSize.h:65
WebCore::IntSize::IntSize
IntSize()
Definition: IntSize.h:59
WebCore::IntSize::isEmpty
bool isEmpty() const
Definition: IntSize.h:68
WebCore
Definition: CSSHelper.h:7
WebCore::operator+=
FloatPoint & operator+=(FloatPoint &a, const FloatSize &b)
Definition: FloatPoint.h:103
WebCore::operator!=
bool operator!=(const FloatPoint &a, const FloatPoint &b)
Definition: FloatPoint.h:135
WebCore::operator==
bool operator==(const FloatPoint &a, const FloatPoint &b)
Definition: FloatPoint.h:130
WebCore::operator-=
FloatPoint & operator-=(FloatPoint &a, const FloatSize &b)
Definition: FloatPoint.h:109
WebCore::operator+
FloatPoint operator+(const FloatPoint &a, const FloatSize &b)
Definition: FloatPoint.h:115
WebCore::operator-
FloatSize operator-(const FloatPoint &a, const FloatPoint &b)
Definition: FloatPoint.h:120
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