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FloatSize.h
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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)
33typedef struct CGSize CGSize;
34#endif
35
36#if PLATFORM(MAC)
37#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
38typedef struct CGSize NSSize;
39#else
40typedef struct _NSSize NSSize;
41#endif
42#endif
43
44namespace WebCore {
45
46class IntSize;
47
48class FloatSize {
49public:
50 FloatSize() : m_width(0), m_height(0) { }
51 FloatSize(float width, float height) : m_width(width), m_height(height) { }
52 FloatSize(const IntSize&);
53
54 static FloatSize narrowPrecision(double width, double height);
55
56 float width() const { return m_width; }
57 float height() const { return m_height; }
58
59 void setWidth(float width) { m_width = width; }
60 void setHeight(float height) { m_height = height; }
61
62 bool isEmpty() const { return m_width <= 0 || m_height <= 0; }
63
64 FloatSize expandedTo(const FloatSize& other) const
65 {
66 return FloatSize(m_width > other.m_width ? m_width : other.m_width,
67 m_height > other.m_height ? m_height : other.m_height);
68 }
69
70#if PLATFORM(CG)
71 explicit FloatSize(const CGSize&); // don't do this implicitly since it's lossy
72 operator CGSize() const;
73#endif
74
75#if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
76 explicit FloatSize(const NSSize &); // don't do this implicitly since it's lossy
77 operator NSSize() const;
78#endif
79
80private:
81 float m_width, m_height;
82};
83
84inline FloatSize& operator+=(FloatSize& a, const FloatSize& b)
85{
86 a.setWidth(a.width() + b.width());
87 a.setHeight(a.height() + b.height());
88 return a;
89}
90
91inline FloatSize& operator-=(FloatSize& a, const FloatSize& b)
92{
93 a.setWidth(a.width() - b.width());
94 a.setHeight(a.height() - b.height());
95 return a;
96}
97
98inline FloatSize operator+(const FloatSize& a, const FloatSize& b)
99{
100 return FloatSize(a.width() + b.width(), a.height() + b.height());
101}
102
103inline FloatSize operator-(const FloatSize& a, const FloatSize& b)
104{
105 return FloatSize(a.width() - b.width(), a.height() - b.height());
106}
107
108inline FloatSize operator-(const FloatSize& size)
109{
110 return FloatSize(-size.width(), -size.height());
111}
112
113inline bool operator==(const FloatSize& a, const FloatSize& b)
114{
115 return a.width() == b.width() && a.height() == b.height();
116}
117
118inline bool operator!=(const FloatSize& a, const FloatSize& b)
119{
120 return a.width() != b.width() || a.height() != b.height();
121}
122
123} // namespace WebCore
124
125#endif // FloatSize_h
WebCore::FloatSize
Definition: FloatSize.h:48
WebCore::FloatSize::height
float height() const
Definition: FloatSize.h:57
WebCore::FloatSize::isEmpty
bool isEmpty() const
Definition: FloatSize.h:62
WebCore::FloatSize::narrowPrecision
static FloatSize narrowPrecision(double width, double height)
Definition: FloatSize.cpp:39
WebCore::FloatSize::setWidth
void setWidth(float width)
Definition: FloatSize.h:59
WebCore::FloatSize::expandedTo
FloatSize expandedTo(const FloatSize &other) const
Definition: FloatSize.h:64
WebCore::FloatSize::FloatSize
FloatSize(float width, float height)
Definition: FloatSize.h:51
WebCore::FloatSize::setHeight
void setHeight(float height)
Definition: FloatSize.h:60
WebCore::FloatSize::FloatSize
FloatSize()
Definition: FloatSize.h:50
WebCore::FloatSize::width
float width() const
Definition: FloatSize.h:56
WebCore::IntSize
Definition: IntSize.h:57
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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