rectangle.java

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 * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved.
 *
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 *
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 *   - Redistributions in binary form must reproduce the above copyright
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */ 

public class Rectangle {
    /** The width of this rectangle. */
    public int width;

    /** The height of this rectangle. */
    public int height;

    /** The origin (lower-left corner) of this rectangle. */
    public Point origin;

    /**
     * Creates a rectangle with the specified size.
     * The origin is (0, 0).
     * @param w width of the rectangle
     * @param h height of the rectangle
     */
    public Rectangle(int w, int h) {
	this(new Point(0, 0), w, h);
    }

    /**
     * Creates a rectangle with the specified origin and
     * size.
     * @param p origin of the rectangle
     * @param w width of the rectangle
     * @param h height of the rectangle
     */
    public Rectangle(Point p, int w, int h) {
	origin = p;
	width = w;
	height = h;
    }

    /**
     * Moves the rectangle to the specified origin.
     */
    public void move(int x, int y) {
	origin.x = x;
	origin.y = y;
    }

    /**
     * Returns the computed area of the rectangle.
     */
    public int area() {
	return width * height;
    }
}