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 17 package android.graphics; 18 19 import android.os.Parcel; 20 import android.os.Parcelable; 21 22 23 /** 24 * Point holds two integer coordinates 25 */ 26 public class Point implements Parcelable { 27 public int x; 28 public int y; 29 Point()30 public Point() {} 31 Point(int x, int y)32 public Point(int x, int y) { 33 this.x = x; 34 this.y = y; 35 } 36 Point(Point src)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 */ set(int x, int y)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 */ negate()53 public final void negate() { 54 x = -x; 55 y = -y; 56 } 57 58 /** 59 * Offset the point's coordinates by dx, dy 60 */ offset(int dx, int dy)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 */ equals(int x, int y)69 public final boolean equals(int x, int y) { 70 return this.x == x && this.y == y; 71 } 72 73 @Override equals(Object o)74 public boolean equals(Object o) { 75 if (this == o) return true; 76 if (o == null || getClass() != o.getClass()) return false; 77 78 Point point = (Point) o; 79 80 if (x != point.x) return false; 81 if (y != point.y) return false; 82 83 return true; 84 } 85 86 @Override hashCode()87 public int hashCode() { 88 int result = x; 89 result = 31 * result + y; 90 return result; 91 } 92 93 @Override toString()94 public String toString() { 95 return "Point(" + x + ", " + y + ")"; 96 } 97 98 /** 99 * Parcelable interface methods 100 */ 101 @Override describeContents()102 public int describeContents() { 103 return 0; 104 } 105 106 /** 107 * Write this point to the specified parcel. To restore a point from 108 * a parcel, use readFromParcel() 109 * @param out The parcel to write the point's coordinates into 110 */ 111 @Override writeToParcel(Parcel out, int flags)112 public void writeToParcel(Parcel out, int flags) { 113 out.writeInt(x); 114 out.writeInt(y); 115 } 116 117 public static final Parcelable.Creator<Point> CREATOR = new Parcelable.Creator<Point>() { 118 /** 119 * Return a new point from the data in the specified parcel. 120 */ 121 public Point createFromParcel(Parcel in) { 122 Point r = new Point(); 123 r.readFromParcel(in); 124 return r; 125 } 126 127 /** 128 * Return an array of rectangles of the specified size. 129 */ 130 public Point[] newArray(int size) { 131 return new Point[size]; 132 } 133 }; 134 135 /** 136 * Set the point's coordinates from the data stored in the specified 137 * parcel. To write a point to a parcel, call writeToParcel(). 138 * 139 * @param in The parcel to read the point's coordinates from 140 */ readFromParcel(Parcel in)141 public void readFromParcel(Parcel in) { 142 x = in.readInt(); 143 y = in.readInt(); 144 } 145 } 146