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FloatPoint.h
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1/*
2 * Copyright (C) 2004, 2006, 2007 Apple 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 FloatPoint_h
28#define FloatPoint_h
29
30#include "FloatSize.h"
31#include <wtf/Platform.h>
32
33#if PLATFORM(CG)
34typedef struct CGPoint CGPoint;
35#endif
36
37#if PLATFORM(MAC)
38#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
39typedef struct CGPoint NSPoint;
40#else
41typedef struct _NSPoint NSPoint;
42#endif
43#endif
44
45#if PLATFORM(QT)
46#include "qglobal.h"
47QT_BEGIN_NAMESPACE
48class QPointF;
49QT_END_NAMESPACE
50#endif
51
52#if PLATFORM(SYMBIAN)
53class TPoint;
54#endif
55
56namespace WebCore {
57
58class AffineTransform;
59class IntPoint;
60
61class FloatPoint {
62public:
63 FloatPoint() : m_x(0), m_y(0) { }
64 FloatPoint(float x, float y) : m_x(x), m_y(y) { }
65 FloatPoint(const IntPoint&);
66
67 static FloatPoint narrowPrecision(double x, double y);
68
69 float x() const { return m_x; }
70 float y() const { return m_y; }
71
72 void setX(float x) { m_x = x; }
73 void setY(float y) { m_y = y; }
74 void move(float dx, float dy) { m_x += dx; m_y += dy; }
75
76#if PLATFORM(CG)
77 FloatPoint(const CGPoint&);
78 operator CGPoint() const;
79#endif
80
81#if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
82 FloatPoint(const NSPoint&);
83 operator NSPoint() const;
84#endif
85
86#if PLATFORM(QT)
87 FloatPoint(const QPointF&);
88 operator QPointF() const;
89#endif
90
91#if PLATFORM(SYMBIAN)
92 operator TPoint() const;
93 FloatPoint(const TPoint& );
94#endif
95
96 FloatPoint matrixTransform(const AffineTransform&) const;
97
98private:
99 float m_x, m_y;
100};
101
102
103inline FloatPoint& operator+=(FloatPoint& a, const FloatSize& b)
104{
105 a.move(b.width(), b.height());
106 return a;
107}
108
109inline FloatPoint& operator-=(FloatPoint& a, const FloatSize& b)
110{
111 a.move(-b.width(), -b.height());
112 return a;
113}
114
115inline FloatPoint operator+(const FloatPoint& a, const FloatSize& b)
116{
117 return FloatPoint(a.x() + b.width(), a.y() + b.height());
118}
119
120inline FloatSize operator-(const FloatPoint& a, const FloatPoint& b)
121{
122 return FloatSize(a.x() - b.x(), a.y() - b.y());
123}
124
125inline FloatPoint operator-(const FloatPoint& a, const FloatSize& b)
126{
127 return FloatPoint(a.x() - b.width(), a.y() - b.height());
128}
129
130inline bool operator==(const FloatPoint& a, const FloatPoint& b)
131{
132 return a.x() == b.x() && a.y() == b.y();
133}
134
135inline bool operator!=(const FloatPoint& a, const FloatPoint& b)
136{
137 return a.x() != b.x() || a.y() != b.y();
138}
139
140}
141
142#endif
FloatSize.h
WebCore::AffineTransform
Definition: AffineTransform.h:47
WebCore::FloatPoint
Definition: FloatPoint.h:61
WebCore::FloatPoint::setY
void setY(float y)
Definition: FloatPoint.h:73
WebCore::FloatPoint::FloatPoint
FloatPoint()
Definition: FloatPoint.h:63
WebCore::FloatPoint::y
float y() const
Definition: FloatPoint.h:70
WebCore::FloatPoint::setX
void setX(float x)
Definition: FloatPoint.h:72
WebCore::FloatPoint::narrowPrecision
static FloatPoint narrowPrecision(double x, double y)
Definition: FloatPoint.cpp:47
WebCore::FloatPoint::FloatPoint
FloatPoint(float x, float y)
Definition: FloatPoint.h:64
WebCore::FloatPoint::matrixTransform
FloatPoint matrixTransform(const AffineTransform &) const
Definition: FloatPoint.cpp:40
WebCore::FloatPoint::x
float x() const
Definition: FloatPoint.h:69
WebCore::FloatPoint::move
void move(float dx, float dy)
Definition: FloatPoint.h:74
WebCore::FloatSize
Definition: FloatSize.h:48
WebCore::FloatSize::height
float height() const
Definition: FloatSize.h:57
WebCore::FloatSize::width
float width() const
Definition: FloatSize.h:56
WebCore::IntPoint
Definition: IntPoint.h:64
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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