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 22 namespace android { 23 24 class Point 25 { 26 public: 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 83 ANDROID_BASIC_TYPES_TRAITS(Point) 84 85 }; // namespace android 86 87 #endif // ANDROID_UI_POINT 88
