Point.java

/*
 * Copyright 2010 Google Inc.
 *
 * Licensed 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 com.ui.gwt.mobile.client.components.mobile;

/**
 * @author rpack
 * @since 1.0
 */
public class Point {

    public double x, y;

    public Point(Point c) {
        this.x = c.x;
        this.y = c.y;
    }

    public Point() {
        x = y = 0;
    }

    public Point(double x, double y) {
        set(x, y);
    }

    public double x() {
        return x;
    }

    public double y() {
        return y;
    }

    public Point set(double x, double y) {
        this.x = x;
        this.y = y;
        return this;
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof Point)) {
            return false;
        }
        Point c = (Point) obj;
        return (x == c.x) && (y == c.y);
    }

    @Override
    public int hashCode() {
        return (int) x ^ (int) y;
    }

    public Point minus(Point c) {
        this.x -= c.x;
        this.y -= c.y;
        return this;
    }

    public Point plus(Point c) {
        this.x += c.x;
        this.y += c.y;
        return this;
    }

    public Point clone(Point c) {
        this.x = c.x;
        this.y = c.y;
        return this;
    }
}