| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, |
| * Version 2.0 (the "License"); you may not use this file except in |
| * compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pivot.scene; |
| |
| import java.io.Serializable; |
| import java.util.Map; |
| |
| import org.apache.pivot.beans.BeanAdapter; |
| import org.apache.pivot.io.SerializationException; |
| import org.apache.pivot.json.JSONSerializer; |
| |
| /** |
| * Class representing the location of an object. |
| */ |
| public final class Point implements Serializable { |
| private static final long serialVersionUID = 0; |
| |
| public final int x; |
| public final int y; |
| |
| public static final String X_KEY = "x"; |
| public static final String Y_KEY = "y"; |
| |
| public Point(int x, int y) { |
| this.x = x; |
| this.y = y; |
| } |
| |
| public Point(Point point) { |
| if (point == null) { |
| throw new IllegalArgumentException("point is null."); |
| } |
| |
| this.x = point.x; |
| this.y = point.y; |
| } |
| |
| public Point translate(int dx, int dy) { |
| return new Point(x + dx, y + dy); |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| boolean equals = false; |
| |
| if (object instanceof Point) { |
| Point point = (Point)object; |
| equals = (x == point.x |
| && y == point.y); |
| } |
| |
| return equals; |
| } |
| |
| @Override |
| public int hashCode() { |
| return 31 * x + y; |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getName() + " [" + x + "," + y + "]"; |
| } |
| |
| public static Point decode(String value) { |
| if (value == null) { |
| throw new IllegalArgumentException(); |
| } |
| |
| Map<String, ?> map; |
| try { |
| map = JSONSerializer.parseMap(value); |
| } catch (SerializationException exception) { |
| throw new IllegalArgumentException(exception); |
| } |
| |
| int x = BeanAdapter.getInt(map, X_KEY); |
| int y = BeanAdapter.getInt(map, Y_KEY); |
| |
| return new Point(x, y); |
| } |
| } |