Flutter macOS Embedder
geometry.h
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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 FLUTTER_SHELL_PLATFORM_COMMON_GEOMETRY_H_
6 #define FLUTTER_SHELL_PLATFORM_COMMON_GEOMETRY_H_
7
8 #include <cmath>
9
10 namespace flutter {
11
12 // A point in Cartesian space relative to a separately-maintained origin.
13 class Point {
14  public:
15  Point() = default;
16  Point(double x, double y) : x_(x), y_(y) {}
17  Point(const Point& point) = default;
18  Point& operator=(const Point& other) = default;
19
20  double x() const { return x_; }
21  double y() const { return y_; }
22
23  bool operator==(const Point& other) const {
24  return x_ == other.x_ && y_ == other.y_;
25  }
26
27  private:
28  double x_ = 0.0;
29  double y_ = 0.0;
30 };
31
32 // A 2D floating-point size with non-negative dimensions.
33 class Size {
34  public:
35  Size() = default;
36  Size(double width, double height)
37  : width_(std::fmax(0.0, width)), height_(std::fmax(0.0, height)) {}
38
39  Size(const Size& size) = default;
40  Size& operator=(const Size& other) = default;
41
42  double width() const { return width_; }
43  double height() const { return height_; }
44
45  bool operator==(const Size& other) const {
46  return width_ == other.width_ && height_ == other.height_;
47  }
48
49  private:
50  double width_ = 0.0;
51  double height_ = 0.0;
52 };
53
54 // A rectangle with position in Cartesian space specified relative to a
55 // separately-maintained origin.
56 class Rect {
57  public:
58  Rect() = default;
59  Rect(const Point& origin, const Size& size) : origin_(origin), size_(size) {}
60  Rect(const Rect& rect) = default;
61  Rect& operator=(const Rect& other) = default;
62
63  double left() const { return origin_.x(); }
64  double top() const { return origin_.y(); }
65  double right() const { return origin_.x() + size_.width(); }
66  double bottom() const { return origin_.y() + size_.height(); }
67  double width() const { return size_.width(); }
68  double height() const { return size_.height(); }
69  Point origin() const { return origin_; }
70  Size size() const { return size_; }
71
72  bool operator==(const Rect& other) const {
73  return origin_ == other.origin_ && size_ == other.size_;
74  }
75
76  private:
77  Point origin_;
78  Size size_;
79 };
80
81 } // namespace flutter
82
83 #endif // FLUTTER_SHELL_PLATFORM_COMMON_GEOMETRY_H_
flutter::Rect::width
double width() const
Definition: geometry.h:67
flutter::Size::Size
Size(double width, double height)
Definition: geometry.h:36
flutter::Size::operator==
bool operator==(const Size &other) const
Definition: geometry.h:45
flutter::Rect::Rect
Rect(const Point &origin, const Size &size)
Definition: geometry.h:59
flutter::Rect::origin
Point origin() const
Definition: geometry.h:69
flutter::Point::x
double x() const
Definition: geometry.h:20
flutter::Rect::Rect
Rect()=default
flutter::Size::width
double width() const
Definition: geometry.h:42
flutter::Rect
Definition: geometry.h:56
flutter::Size::operator=
Size & operator=(const Size &other)=default
flutter::Rect::left
double left() const
Definition: geometry.h:63
flutter::Rect::operator=
Rect & operator=(const Rect &other)=default
flutter::Size::height
double height() const
Definition: geometry.h:43
flutter::Rect::height
double height() const
Definition: geometry.h:68
flutter::Rect::operator==
bool operator==(const Rect &other) const
Definition: geometry.h:72
flutter
Definition: AccessibilityBridgeMac.h:16
flutter::Rect::top
double top() const
Definition: geometry.h:64
flutter::Point::Point
Point(double x, double y)
Definition: geometry.h:16
flutter::Rect::bottom
double bottom() const
Definition: geometry.h:66
flutter::Rect::size
Size size() const
Definition: geometry.h:70
flutter::Point
Definition: geometry.h:13
flutter::Point::y
double y() const
Definition: geometry.h:21
flutter::Point::Point
Point()=default
flutter::Point::operator=
Point & operator=(const Point &other)=default
flutter::Size
Definition: geometry.h:33
flutter::Rect::right
double right() const
Definition: geometry.h:65
flutter::Size::Size
Size()=default
flutter::Point::operator==
bool operator==(const Point &other) const
Definition: geometry.h:23