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IntPoint.h
1 /*
2  * Copyright (C) 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 IntPoint_h
27 #define IntPoint_h
28 
29 #include "IntSize.h"
30 #include <wtf/Platform.h>
31 
32 #if PLATFORM(CG)
33 typedef struct CGPoint CGPoint;
34 #endif
35 
36 #if PLATFORM(MAC)
37 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
38 typedef struct CGPoint NSPoint;
39 #else
40 typedef struct _NSPoint NSPoint;
41 #endif
42 #endif
43 
44 #if PLATFORM(WIN)
45 typedef struct tagPOINT POINT;
46 typedef struct tagPOINTS POINTS;
47 #elif PLATFORM(QT)
48 QT_BEGIN_NAMESPACE
49 class QPoint;
50 QT_END_NAMESPACE
51 #elif PLATFORM(GTK)
52 typedef struct _GdkPoint GdkPoint;
53 #endif
54 #if PLATFORM(SYMBIAN)
55 class TPoint;
56 #endif
57 
58 #if PLATFORM(WX)
59 class wxPoint;
60 #endif
61 
62 namespace WebCore
63 {
64 
65 class IntPoint
66 {
67 public:
68  IntPoint() : m_x(0), m_y(0) { }
69  IntPoint(int x, int y) : m_x(x), m_y(y) { }
70 
71  int x() const
72  {
73  return m_x;
74  }
75  int y() const
76  {
77  return m_y;
78  }
79 
80  void setX(int x)
81  {
82  m_x = x;
83  }
84  void setY(int y)
85  {
86  m_y = y;
87  }
88 
89  void move(int dx, int dy)
90  {
91  m_x += dx;
92  m_y += dy;
93  }
94 
95 #if PLATFORM(CG)
96  explicit IntPoint(const CGPoint &); // don't do this implicitly since it's lossy
97  operator CGPoint() const;
98 #endif
99 
100 #if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
101  explicit IntPoint(const NSPoint &); // don't do this implicitly since it's lossy
102  operator NSPoint() const;
103 #endif
104 
105 #if PLATFORM(WIN)
106  IntPoint(const POINT &);
107  operator POINT() const;
108  IntPoint(const POINTS &);
109  operator POINTS() const;
110 #elif PLATFORM(QT)
111  IntPoint(const QPoint &);
112  operator QPoint() const;
113 #elif PLATFORM(GTK)
114  IntPoint(const GdkPoint &);
115  operator GdkPoint() const;
116 #endif
117 #if PLATFORM(SYMBIAN)
118  IntPoint(const TPoint &);
119  operator TPoint() const;
120 #endif
121 
122 #if PLATFORM(WX)
123  IntPoint(const wxPoint &);
124  operator wxPoint() const;
125 #endif
126 
127 private:
128  int m_x, m_y;
129 };
130 
131 inline IntPoint &operator+=(IntPoint &a, const IntSize &b)
132 {
133  a.move(b.width(), b.height());
134  return a;
135 }
136 
137 inline IntPoint &operator-=(IntPoint &a, const IntSize &b)
138 {
139  a.move(-b.width(), -b.height());
140  return a;
141 }
142 
143 inline IntPoint operator+(const IntPoint &a, const IntSize &b)
144 {
145  return IntPoint(a.x() + b.width(), a.y() + b.height());
146 }
147 
148 inline IntSize operator-(const IntPoint &a, const IntPoint &b)
149 {
150  return IntSize(a.x() - b.x(), a.y() - b.y());
151 }
152 
153 inline IntPoint operator-(const IntPoint &a, const IntSize &b)
154 {
155  return IntPoint(a.x() - b.width(), a.y() - b.height());
156 }
157 
158 inline bool operator==(const IntPoint &a, const IntPoint &b)
159 {
160  return a.x() == b.x() && a.y() == b.y();
161 }
162 
163 inline bool operator!=(const IntPoint &a, const IntPoint &b)
164 {
165  return a.x() != b.x() || a.y() != b.y();
166 }
167 
168 } // namespace WebCore
169 
170 #endif // IntPoint_h
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