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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
      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 com.android.ide.common.api;
     18 
     19 import com.google.common.annotations.Beta;
     20 import com.android.annotations.NonNull;
     21 
     22 
     23 /**
     24  * Mutable point.
     25  * <p>
     26  * <b>NOTE: This is not a public or final API; if you rely on this be prepared
     27  * to adjust your code for the next tools release.</b>
     28  * </p>
     29  */
     30 @Beta
     31 public class Point {
     32     public int x, y;
     33 
     34     public Point(int x, int y) {
     35         this.x = x;
     36         this.y = y;
     37     }
     38 
     39     public Point(@NonNull Point p) {
     40         x = p.x;
     41         y = p.y;
     42     }
     43 
     44     /** Sets the point to the given coordinates. */
     45     public void set(int x, int y) {
     46         this.x = x;
     47         this.y = y;
     48     }
     49 
     50     /** Returns a new instance of a point with the same values. */
     51     @NonNull
     52     public Point copy() {
     53         return new Point(x, y);
     54     }
     55 
     56     /**
     57      * Offsets this point by adding the given x,y deltas to the x,y coordinates.
     58      * @return Returns self, for chaining.
     59      */
     60     @NonNull
     61     public Point offsetBy(int x, int y) {
     62         this.x += x;
     63         this.y += y;
     64         return this;
     65     }
     66 
     67     @Override
     68     public boolean equals(Object obj) {
     69         if (obj instanceof Point) {
     70             Point rhs = (Point) obj;
     71             return this.x == rhs.x && this.y == rhs.y;
     72         }
     73         return false;
     74     }
     75 
     76     @Override
     77     public int hashCode() {
     78         int h = x ^ ((y >> 16) & 0x0FFFF) ^ ((y & 0x0FFFF) << 16);
     79         return h;
     80     }
     81 
     82     @Override
     83     public String toString() {
     84         return String.format("Point [%dx%d]", x, y);
     85     }
     86 }
     87