2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_
12 #define WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_
14 #include "webrtc/base/constructormagic.h"
15 #include "webrtc/typedefs.h"
19 // A vector in the 2D integer space. E.g. can be used to represent screen DPI.
22 DesktopVector() : x_(0), y_(0) {}
23 DesktopVector(int32_t x, int32_t y) : x_(x), y_(y) {}
25 int32_t x() const { return x_; }
26 int32_t y() const { return y_; }
27 bool is_zero() const { return x_ == 0 && y_ == 0; }
29 bool equals(const DesktopVector& other) const {
30 return x_ == other.x_ && y_ == other.y_;
33 void set(int32_t x, int32_t y) {
38 DesktopVector add(const DesktopVector& other) const {
39 return DesktopVector(x() + other.x(), y() + other.y());
41 DesktopVector subtract(const DesktopVector& other) const {
42 return DesktopVector(x() - other.x(), y() - other.y());
50 // Type used to represent screen/window size.
53 DesktopSize() : width_(0), height_(0) {}
54 DesktopSize(int32_t width, int32_t height)
55 : width_(width), height_(height) {
58 int32_t width() const { return width_; }
59 int32_t height() const { return height_; }
61 bool is_empty() const { return width_ <= 0 || height_ <= 0; }
63 bool equals(const DesktopSize& other) const {
64 return width_ == other.width_ && height_ == other.height_;
67 void set(int32_t width, int32_t height) {
77 // Represents a rectangle on the screen.
80 static DesktopRect MakeSize(const DesktopSize& size) {
81 return DesktopRect(0, 0, size.width(), size.height());
83 static DesktopRect MakeWH(int32_t width, int32_t height) {
84 return DesktopRect(0, 0, width, height);
86 static DesktopRect MakeXYWH(int32_t x, int32_t y,
87 int32_t width, int32_t height) {
88 return DesktopRect(x, y, x + width, y + height);
90 static DesktopRect MakeLTRB(int32_t left, int32_t top,
91 int32_t right, int32_t bottom) {
92 return DesktopRect(left, top, right, bottom);
94 static DesktopRect MakeOriginSize(const DesktopVector& origin,
95 const DesktopSize& size) {
96 return MakeXYWH(origin.x(), origin.y(), size.width(), size.height());
99 DesktopRect() : left_(0), top_(0), right_(0), bottom_(0) {}
101 int32_t left() const { return left_; }
102 int32_t top() const { return top_; }
103 int32_t right() const { return right_; }
104 int32_t bottom() const { return bottom_; }
105 int32_t width() const { return right_ - left_; }
106 int32_t height() const { return bottom_ - top_; }
108 DesktopVector top_left() const { return DesktopVector(left_, top_); }
109 DesktopSize size() const { return DesktopSize(width(), height()); }
111 bool is_empty() const { return left_ >= right_ || top_ >= bottom_; }
113 bool equals(const DesktopRect& other) const {
114 return left_ == other.left_ && top_ == other.top_ &&
115 right_ == other.right_ && bottom_ == other.bottom_;
118 // Returns true if |point| lies within the rectangle boundaries.
119 bool Contains(const DesktopVector& point) const;
121 // Returns true if |rect| lies within the boundaries of this rectangle.
122 bool ContainsRect(const DesktopRect& rect) const;
124 // Finds intersection with |rect|.
125 void IntersectWith(const DesktopRect& rect);
127 // Adds (dx, dy) to the position of the rectangle.
128 void Translate(int32_t dx, int32_t dy);
129 void Translate(DesktopVector d) { Translate(d.x(), d.y()); };
132 DesktopRect(int32_t left, int32_t top, int32_t right, int32_t bottom)
133 : left_(left), top_(top), right_(right), bottom_(bottom) {
142 } // namespace webrtc
144 #endif // WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_