| 1 | /* |
| 2 | * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * |
| 8 | * -Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * -Redistribution in binary form must reproduct the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in |
| 13 | * the documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * This software is provided "AS IS," without a warranty of any kind. ALL |
| 20 | * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING |
| 21 | * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT |
| 23 | * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT |
| 24 | * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS |
| 25 | * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST |
| 26 | * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, |
| 27 | * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY |
| 28 | * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN |
| 29 | * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 30 | * |
| 31 | * You acknowledge that Software is not designed, licensed or intended for |
| 32 | * use in the design, construction, operation or maintenance of any nuclear |
| 33 | * facility. |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * @(#)TreeDemo.java 1.7 03/01/23 |
| 38 | */ |
| 39 | |
| 40 | |
| 41 | import javax.swing.*; |
| 42 | import javax.swing.event.*; |
| 43 | import javax.swing.tree.*; |
| 44 | import javax.accessibility.*; |
| 45 | |
| 46 | import java.awt.*; |
| 47 | import java.awt.event.*; |
| 48 | import java.beans.*; |
| 49 | import java.util.*; |
| 50 | import java.io.*; |
| 51 | import java.applet.*; |
| 52 | import java.net.*; |
| 53 | |
| 54 | /** |
| 55 | * JTree Demo |
| 56 | * |
| 57 | * @version 1.7 01/23/03 |
| 58 | * @author Jeff Dinkins |
| 59 | */ |
| 60 | public class TreeDemo extends DemoModule { |
| 61 | |
| 62 | /** |
| 63 | * main method allows us to run as a standalone demo. |
| 64 | */ |
| 65 | public static void main(String[] args) { |
| 66 | TreeDemo demo = new TreeDemo(null); |
| 67 | demo.mainImpl(); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * TreeDemo Constructor |
| 72 | */ |
| 73 | public TreeDemo(SwingSet2 swingset) { |
| 74 | // Set the title for this demo, and an icon used to represent this |
| 75 | // demo inside the SwingSet2 app. |
| 76 | super(swingset, "TreeDemo", "toolbar/JTree.gif"); |
| 77 | |
| 78 | getDemoPanel().add(createTree(), BorderLayout.CENTER); |
| 79 | } |
| 80 | |
| 81 | public JScrollPane createTree() { |
| 82 | DefaultMutableTreeNode top = new DefaultMutableTreeNode(getString("TreeDemo.music")); |
| 83 | DefaultMutableTreeNode catagory = null ; |
| 84 | DefaultMutableTreeNode artist = null; |
| 85 | DefaultMutableTreeNode record = null; |
| 86 | |
| 87 | // open tree data |
| 88 | URL url = getClass().getResource("/resources/tree.txt"); |
| 89 | |
| 90 | try { |
| 91 | // convert url to buffered string |
| 92 | InputStream is = url.openStream(); |
| 93 | InputStreamReader isr = new InputStreamReader(is); |
| 94 | BufferedReader reader = new BufferedReader(isr); |
| 95 | |
| 96 | // read one line at a time, put into tree |
| 97 | String line = reader.readLine(); |
| 98 | while(line != null) { |
| 99 | // System.out.println("reading in: ->" + line + "<-"); |
| 100 | char linetype = line.charAt(0); |
| 101 | switch(linetype) { |
| 102 | case 'C': |
| 103 | catagory = new DefaultMutableTreeNode(line.substring(2)); |
| 104 | top.add(catagory); |
| 105 | break; |
| 106 | case 'A': |
| 107 | if(catagory != null) { |
| 108 | catagory.add(artist = new DefaultMutableTreeNode(line.substring(2))); |
| 109 | } |
| 110 | break; |
| 111 | case 'R': |
| 112 | if(artist != null) { |
| 113 | artist.add(record = new DefaultMutableTreeNode(line.substring(2))); |
| 114 | } |
| 115 | break; |
| 116 | case 'S': |
| 117 | if(record != null) { |
| 118 | record.add(new DefaultMutableTreeNode(line.substring(2))); |
| 119 | } |
| 120 | break; |
| 121 | default: |
| 122 | break; |
| 123 | } |
| 124 | line = reader.readLine(); |
| 125 | } |
| 126 | } catch (IOException e) { |
| 127 | } |
| 128 | |
| 129 | JTree tree = new JTree(top) { |
| 130 | public Insets getInsets() { |
| 131 | return new Insets(5,5,5,5); |
| 132 | } |
| 133 | }; |
| 134 | return new JScrollPane(tree); |
| 135 | } |
| 136 | |
| 137 | } |