| /* |
| * 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 + ")"; |
| } |
| } |