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 import java.io.PrintWriter; 23 24 25 /** 26 * Point holds two integer coordinates 27 */ 28 public class Point implements Parcelable { 29 public int x; 30 public int y; 31 Point()32 public Point() {} 33 Point(int x, int y)34 public Point(int x, int y) { 35 this.x = x; 36 this.y = y; 37 } 38 Point(Point src)39 public Point(Point src) { 40 this.x = src.x; 41 this.y = src.y; 42 } 43 44 /** 45 * Set the point's x and y coordinates 46 */ set(int x, int y)47 public void set(int x, int y) { 48 this.x = x; 49 this.y = y; 50 } 51 52 /** 53 * Negate the point's coordinates 54 */ negate()55 public final void negate() { 56 x = -x; 57 y = -y; 58 } 59 60 /** 61 * Offset the point's coordinates by dx, dy 62 */ offset(int dx, int dy)63 public final void offset(int dx, int dy) { 64 x += dx; 65 y += dy; 66 } 67 68 /** 69 * Returns true if the point's coordinates equal (x,y) 70 */ equals(int x, int y)71 public final boolean equals(int x, int y) { 72 return this.x == x && this.y == y; 73 } 74 75 @Override equals(Object o)76 public boolean equals(Object o) { 77 if (this == o) return true; 78 if (o == null || getClass() != o.getClass()) return false; 79 80 Point point = (Point) o; 81 82 if (x != point.x) return false; 83 if (y != point.y) return false; 84 85 return true; 86 } 87 88 @Override hashCode()89 public int hashCode() { 90 int result = x; 91 result = 31 * result + y; 92 return result; 93 } 94 95 @Override toString()96 public String toString() { 97 return "Point(" + x + ", " + y + ")"; 98 } 99 100 /** @hide */ printShortString(PrintWriter pw)101 public void printShortString(PrintWriter pw) { 102 pw.print("["); pw.print(x); pw.print(","); pw.print(y); pw.print("]"); 103 } 104 105 /** 106 * Parcelable interface methods 107 */ 108 @Override describeContents()109 public int describeContents() { 110 return 0; 111 } 112 113 /** 114 * Write this point to the specified parcel. To restore a point from 115 * a parcel, use readFromParcel() 116 * @param out The parcel to write the point's coordinates into 117 */ 118 @Override writeToParcel(Parcel out, int flags)119 public void writeToParcel(Parcel out, int flags) { 120 out.writeInt(x); 121 out.writeInt(y); 122 } 123 124 public static final Parcelable.Creator<Point> CREATOR = new Parcelable.Creator<Point>() { 125 /** 126 * Return a new point from the data in the specified parcel. 127 */ 128 public Point createFromParcel(Parcel in) { 129 Point r = new Point(); 130 r.readFromParcel(in); 131 return r; 132 } 133 134 /** 135 * Return an array of rectangles of the specified size. 136 */ 137 public Point[] newArray(int size) { 138 return new Point[size]; 139 } 140 }; 141 142 /** 143 * Set the point's coordinates from the data stored in the specified 144 * parcel. To write a point to a parcel, call writeToParcel(). 145 * 146 * @param in The parcel to read the point's coordinates from 147 */ readFromParcel(Parcel in)148 public void readFromParcel(Parcel in) { 149 x = in.readInt(); 150 y = in.readInt(); 151 } 152 } 153