1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * ident "%Z%%M% %I% %E% SMI" 24 * 25 * Copyright 2002 by Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 package com.sun.dhcpmgr.ui; 29 30 import javax.swing.JButton; 31 import javax.swing.ImageIcon; 32 import java.io.InputStream; 33 import java.io.BufferedInputStream; 34 import java.io.ByteArrayOutputStream; 35 import java.io.IOException; 36 37 /** 38 * A button with an image loaded from a gif file. To use this class, extend it 39 * and in your constructor call setImage(). 40 */ 41 public abstract class ImageButton extends JButton { 42 43 /** 44 * Sets the button's icon to the image loaded from the file; falls back the 45 * specified text if for some reason the icon can't be loaded. Base class 46 * is used to find the gif image in the same directory as the class that's 47 * using it, a convention we use. 48 * @param baseClass the name of the class we're doing this on behalf of 49 * @param file the name of the file the gif image is stored in 50 * @param mnText is the mnemonic/text to be used for the button 51 */ 52 public void setImage(Class baseClass, String file, Mnemonic mnText) { 53 try { 54 InputStream resource = baseClass.getResourceAsStream(file); 55 if (resource != null) { 56 BufferedInputStream in = new BufferedInputStream(resource); 57 ByteArrayOutputStream out = new ByteArrayOutputStream(1024); 58 byte [] buffer = new byte[1024]; 59 int n; 60 while ((n = in.read(buffer)) > 0) { 61 out.write(buffer, 0, n); 62 } 63 in.close(); 64 out.flush(); 65 buffer = out.toByteArray(); 66 setIcon(new ImageIcon(buffer)); 67 } 68 } catch (IOException ioe) { 69 } 70 // Added for accessibility 71 setText(mnText.getString()); 72 setToolTipText(mnText.getString()); 73 setMnemonic(mnText.getMnemonic()); 74 } 75 }