1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_UI_POINT
18#define ANDROID_UI_POINT
19
20#include <utils/TypeHelpers.h>
21
22namespace android {
23
24class Point
25{
26public:
27    int x;
28    int y;
29
30    // we don't provide copy-ctor and operator= on purpose
31    // because we want the compiler generated versions
32
33    // Default constructor doesn't initialize the Point
34    inline Point() {
35    }
36    inline Point(int x, int y) : x(x), y(y) {
37    }
38
39    inline bool operator == (const Point& rhs) const {
40        return (x == rhs.x) && (y == rhs.y);
41    }
42    inline bool operator != (const Point& rhs) const {
43        return !operator == (rhs);
44    }
45
46    inline bool isOrigin() const {
47        return !(x|y);
48    }
49
50    // operator < defines an order which allows to use points in sorted
51    // vectors.
52    bool operator < (const Point& rhs) const {
53        return y<rhs.y || (y==rhs.y && x<rhs.x);
54    }
55
56    inline Point& operator - () {
57        x = -x;
58        y = -y;
59        return *this;
60    }
61
62    inline Point& operator += (const Point& rhs) {
63        x += rhs.x;
64        y += rhs.y;
65        return *this;
66    }
67    inline Point& operator -= (const Point& rhs) {
68        x -= rhs.x;
69        y -= rhs.y;
70        return *this;
71    }
72
73    const Point operator + (const Point& rhs) const {
74        const Point result(x+rhs.x, y+rhs.y);
75        return result;
76    }
77    const Point operator - (const Point& rhs) const {
78        const Point result(x-rhs.x, y-rhs.y);
79        return result;
80    }
81};
82
83ANDROID_BASIC_TYPES_TRAITS(Point)
84
85}; // namespace android
86
87#endif // ANDROID_UI_POINT
88