1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2005 Nokia. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FloatPoint_h
#define FloatPoint_h
#include "FloatSize.h"
#include "IntPoint.h"
#include <wtf/MathExtras.h>
#if PLATFORM(CG)
typedef struct CGPoint CGPoint;
#endif
#if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN))
#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
typedef struct CGPoint NSPoint;
#else
typedef struct _NSPoint NSPoint;
#endif
#endif
#if PLATFORM(QT)
#include "qglobal.h"
QT_BEGIN_NAMESPACE
class QPointF;
QT_END_NAMESPACE
#endif
#if PLATFORM(HAIKU)
class BPoint;
#endif
#if PLATFORM(SKIA)
struct SkPoint;
#endif
namespace WebCore {
class AffineTransform;
class TransformationMatrix;
class IntPoint;
class FloatPoint {
public:
FloatPoint() : m_x(0), m_y(0) { }
FloatPoint(float x, float y) : m_x(x), m_y(y) { }
FloatPoint(const IntPoint&);
static FloatPoint narrowPrecision(double x, double y);
float x() const { return m_x; }
float y() const { return m_y; }
void setX(float x) { m_x = x; }
void setY(float y) { m_y = y; }
void move(float dx, float dy) { m_x += dx; m_y += dy; }
#if PLATFORM(CG)
FloatPoint(const CGPoint&);
operator CGPoint() const;
#endif
#if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
|| (PLATFORM(CHROMIUM) && OS(DARWIN))
FloatPoint(const NSPoint&);
operator NSPoint() const;
#endif
#if PLATFORM(QT)
FloatPoint(const QPointF&);
operator QPointF() const;
#endif
#if PLATFORM(HAIKU)
FloatPoint(const BPoint&);
operator BPoint() const;
#endif
#if PLATFORM(SKIA)
operator SkPoint() const;
FloatPoint(const SkPoint&);
#endif
FloatPoint matrixTransform(const TransformationMatrix&) const;
FloatPoint matrixTransform(const AffineTransform&) const;
private:
float m_x, m_y;
};
inline FloatPoint& operator+=(FloatPoint& a, const FloatSize& b)
{
a.move(b.width(), b.height());
return a;
}
inline FloatPoint& operator-=(FloatPoint& a, const FloatSize& b)
{
a.move(-b.width(), -b.height());
return a;
}
inline FloatPoint operator+(const FloatPoint& a, const FloatSize& b)
{
return FloatPoint(a.x() + b.width(), a.y() + b.height());
}
inline FloatSize operator-(const FloatPoint& a, const FloatPoint& b)
{
return FloatSize(a.x() - b.x(), a.y() - b.y());
}
inline FloatPoint operator-(const FloatPoint& a, const FloatSize& b)
{
return FloatPoint(a.x() - b.width(), a.y() - b.height());
}
inline bool operator==(const FloatPoint& a, const FloatPoint& b)
{
return a.x() == b.x() && a.y() == b.y();
}
inline bool operator!=(const FloatPoint& a, const FloatPoint& b)
{
return a.x() != b.x() || a.y() != b.y();
}
inline IntPoint roundedIntPoint(const FloatPoint& p)
{
return IntPoint(static_cast<int>(roundf(p.x())), static_cast<int>(roundf(p.y())));
}
}
#endif
|
