/* * Copyright (c) 1996-1999 Bill Venners. All Rights Reserved. * * This Java source file is part of the Interactive Illustrations Web * Site, which is delivered in the applets directory of the CD-ROM * that accompanies the book "Inside the Java 2 Virtual Machine" by Bill * Venners, published by McGraw-Hill, 1999, ISBN: 0-07-135093-4. This * source file is provided for evaluation purposes only, but you can * redistribute it under certain conditions, described in the full * copyright notice below. * * Full Copyright Notice: * * All the web pages and Java applets delivered in the applets * directory of the CD-ROM, consisting of ".html," ".gif," ".class," * and ".java" files, are copyrighted (c) 1996-1999 by Bill * Venners, and all rights are reserved. This material may be copied * and placed on any commercial or non-commercial web server on any * network (including the internet) provided that the following * guidelines are followed: * * a. All the web pages and Java Applets (".html," ".gif," ".class," * and ".java" files), including the source code, that are delivered * in the applets directory of the CD-ROM that * accompanies the book must be published together on the same web * site. * * b. All the web pages and Java Applets (".html," ".gif," ".class," * and ".java" files) must be published "as is" and may not be altered * in any way. * * c. All use and access to this web site must be free, and no fees * can be charged to view these materials, unless express written * permission is obtained from Bill Venners. * * d. The web pages and Java Applets may not be distributed on any * media, other than a web server on a network, and may not accompany * any book or publication. * * BILL VENNERS MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE * SUITABILITY OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, * FITNESS FOR PARTICULAR PURPOSE, OR NON-INFRINGEMENT. BILL VENNERS * SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY A LICENSEE AS A * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. */ import java.awt.*; /** * This class is the canvas upon which a red fish is drawn * that sits just above the "new RedFish()" button on the * allocate fish panel. * * @author Bill Venners */ class RedFishButtonCanvas extends Canvas { private final int fishButtonInset = 5; private BigRedFishIcon bigRedFishIcon = new BigRedFishIcon(false); RedFishButtonCanvas() { //setBackground(Color.white); } public Dimension minimumSize() { Dimension fishButtonDim = new Dimension(0, 0); fishButtonDim.width = bigRedFishIcon.getFishWidth() + (2 * fishButtonInset); fishButtonDim.height = bigRedFishIcon.getFishHeight() + (2 * fishButtonInset); return fishButtonDim; } public Dimension preferredSize() { return minimumSize(); } public void paint(Graphics g) { // First calculate the positions of the goodies on the canvas based on the width // and height of the canvas. Dimension dim = size(); int xFishStart = (dim.width - bigRedFishIcon.getFishWidth()) / 2; if (xFishStart < 0) { xFishStart = 0; } int yFishStart = (dim.height - bigRedFishIcon.getFishHeight()) / 2; if (yFishStart < 0) { yFishStart = 0; } bigRedFishIcon.moveFish(xFishStart, yFishStart); bigRedFishIcon.paint(g); } }