com.google.gwt.touch.client.Point.java Source code

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Here is the source code for com.google.gwt.touch.client.Point.java

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/*
 * Copyright 2011 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.google.gwt.touch.client;

/**
 * A simple point class.
 */
public class Point {

    private final double x;
    private final double y;

    public Point() {
        this(0.0, 0.0);
    }

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

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

    /**
     * Divide this point {@link Point} by specified point and return the result.
     * Does not modified this {@link Point}.
     * 
     * @param c the value by which to divide
     * @return the resulting point
     */
    public Point div(Point c) {
        return new Point(x / c.x, y / c.y);
    }

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

    /**
     * Get the x value of the point.
     * 
     * @return the x value
     */
    public double getX() {
        return x;
    }

    /**
     * Get the y value of the point.
     * 
     * @return the y value
     */
    public double getY() {
        return y;
    }

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

    /**
     * Subtract the specified {@link Point} from this point and return the result.
     * Does not modified this {@link Point}.
     * 
     * @param c the value to subtract
     * @return the resulting point
     */
    public Point minus(Point c) {
        return new Point(x - c.x, y - c.y);
    }

    /**
     * Multiple this point {@link Point} by specified point and return the result.
     * Does not modified this {@link Point}.
     * 
     * @param c the value by which to multiply
     * @return the resulting point
     */
    public Point mult(Point c) {
        return new Point(x * c.x, y * c.y);
    }

    /**
     * Add the specified {@link Point} to this point and return the result. Does
     * not modified this {@link Point}.
     * 
     * @param c the value to add
     * @return the resulting point
     */
    public Point plus(Point c) {
        return new Point(x + c.x, y + c.y);
    }

    @Override
    public String toString() {
        return "Point(" + x + "," + y + ")";
    }
}