1/* 2 * Copyright (C) 2007 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 17package android.graphics; 18 19import android.os.Parcel; 20import android.os.Parcelable; 21 22 23/** 24 * Point holds two integer coordinates 25 */ 26public class Point implements Parcelable { 27 public int x; 28 public int y; 29 30 public Point() {} 31 32 public Point(int x, int y) { 33 this.x = x; 34 this.y = y; 35 } 36 37 public Point(Point src) { 38 this.x = src.x; 39 this.y = src.y; 40 } 41 42 /** 43 * Set the point's x and y coordinates 44 */ 45 public void set(int x, int y) { 46 this.x = x; 47 this.y = y; 48 } 49 50 /** 51 * Negate the point's coordinates 52 */ 53 public final void negate() { 54 x = -x; 55 y = -y; 56 } 57 58 /** 59 * Offset the point's coordinates by dx, dy 60 */ 61 public final void offset(int dx, int dy) { 62 x += dx; 63 y += dy; 64 } 65 66 /** 67 * Returns true if the point's coordinates equal (x,y) 68 */ 69 public final boolean equals(int x, int y) { 70 return this.x == x && this.y == y; 71 } 72 73 @Override public boolean equals(Object o) { 74 if (o instanceof Point) { 75 Point p = (Point) o; 76 return this.x == p.x && this.y == p.y; 77 } 78 return false; 79 } 80 81 @Override public int hashCode() { 82 return x * 32713 + y; 83 } 84 85 @Override public String toString() { 86 return "Point(" + x + ", " + y+ ")"; 87 } 88 89 /** 90 * Parcelable interface methods 91 */ 92 @Override 93 public int describeContents() { 94 return 0; 95 } 96 97 /** 98 * Write this point to the specified parcel. To restore a point from 99 * a parcel, use readFromParcel() 100 * @param out The parcel to write the point's coordinates into 101 */ 102 @Override 103 public void writeToParcel(Parcel out, int flags) { 104 out.writeInt(x); 105 out.writeInt(y); 106 } 107 108 public static final Parcelable.Creator<Point> CREATOR = new Parcelable.Creator<Point>() { 109 /** 110 * Return a new point from the data in the specified parcel. 111 */ 112 public Point createFromParcel(Parcel in) { 113 Point r = new Point(); 114 r.readFromParcel(in); 115 return r; 116 } 117 118 /** 119 * Return an array of rectangles of the specified size. 120 */ 121 public Point[] newArray(int size) { 122 return new Point[size]; 123 } 124 }; 125 126 /** 127 * Set the point's coordinates from the data stored in the specified 128 * parcel. To write a point to a parcel, call writeToParcel(). 129 * 130 * @param in The parcel to read the point's coordinates from 131 */ 132 public void readFromParcel(Parcel in) { 133 x = in.readInt(); 134 y = in.readInt(); 135 } 136} 137