1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_GFX_POINT_H_
6#define UI_GFX_POINT_H_
7
8#include "ui/base/ui_export.h"
9#include "ui/gfx/point_base.h"
10#include "ui/gfx/point_f.h"
11#include "ui/gfx/vector2d.h"
12
13#if defined(OS_WIN)
14typedef unsigned long DWORD;
15typedef struct tagPOINT POINT;
16#elif defined(OS_IOS)
17#include <CoreGraphics/CoreGraphics.h>
18#elif defined(OS_MACOSX)
19#include <ApplicationServices/ApplicationServices.h>
20#endif
21
22namespace gfx {
23
24// A point has an x and y coordinate.
25class UI_EXPORT Point : public PointBase<Point, int, Vector2d> {
26 public:
27  Point() : PointBase<Point, int, Vector2d>(0, 0) {}
28  Point(int x, int y) : PointBase<Point, int, Vector2d>(x, y) {}
29#if defined(OS_WIN)
30  // |point| is a DWORD value that contains a coordinate.  The x-coordinate is
31  // the low-order short and the y-coordinate is the high-order short.  This
32  // value is commonly acquired from GetMessagePos/GetCursorPos.
33  explicit Point(DWORD point);
34  explicit Point(const POINT& point);
35  Point& operator=(const POINT& point);
36#elif defined(OS_MACOSX)
37  explicit Point(const CGPoint& point);
38#endif
39
40  ~Point() {}
41
42#if defined(OS_WIN)
43  POINT ToPOINT() const;
44#elif defined(OS_MACOSX)
45  CGPoint ToCGPoint() const;
46#endif
47
48  operator PointF() const {
49    return PointF(x(), y());
50  }
51
52  // Returns a string representation of point.
53  std::string ToString() const;
54};
55
56inline bool operator==(const Point& lhs, const Point& rhs) {
57  return lhs.x() == rhs.x() && lhs.y() == rhs.y();
58}
59
60inline bool operator!=(const Point& lhs, const Point& rhs) {
61  return !(lhs == rhs);
62}
63
64inline Point operator+(const Point& lhs, const Vector2d& rhs) {
65  Point result(lhs);
66  result += rhs;
67  return result;
68}
69
70inline Point operator-(const Point& lhs, const Vector2d& rhs) {
71  Point result(lhs);
72  result -= rhs;
73  return result;
74}
75
76inline Vector2d operator-(const Point& lhs, const Point& rhs) {
77  return Vector2d(lhs.x() - rhs.x(), lhs.y() - rhs.y());
78}
79
80inline Point PointAtOffsetFromOrigin(const Vector2d& offset_from_origin) {
81  return Point(offset_from_origin.x(), offset_from_origin.y());
82}
83
84#if !defined(COMPILER_MSVC)
85extern template class PointBase<Point, int, Vector2d>;
86#endif
87
88}  // namespace gfx
89
90#endif  // UI_GFX_POINT_H_
91