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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 1999, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package com.sun.tools.example.debug.gui; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.util.*; | |
| 30 | + | |
| 31 | +import javax.swing.*; | |
| 32 | +import javax.swing.tree.*; | |
| 33 | +import java.awt.*; | |
| 34 | +import java.awt.event.*; | |
| 35 | + | |
| 36 | +import com.sun.tools.example.debug.bdi.*; | |
| 37 | + | |
| 38 | +public class SourceTreeTool extends JPanel { | |
| 39 | + | |
| 40 | + private static final long serialVersionUID = 3336680912107956419L; | |
| 41 | + | |
| 42 | + private Environment env; | |
| 43 | + | |
| 44 | + private ExecutionManager runtime; | |
| 45 | + private SourceManager sourceManager; | |
| 46 | + private ClassManager classManager; | |
| 47 | + | |
| 48 | + private JTree tree; | |
| 49 | + private SourceTreeNode root; | |
| 50 | + private SearchPath sourcePath; | |
| 51 | + private CommandInterpreter interpreter; | |
| 52 | + | |
| 53 | + private static String HEADING = "SOURCES"; | |
| 54 | + | |
| 55 | + public SourceTreeTool(Environment env) { | |
| 56 | + | |
| 57 | + super(new BorderLayout()); | |
| 58 | + | |
| 59 | + this.env = env; | |
| 60 | + this.runtime = env.getExecutionManager(); | |
| 61 | + this.sourceManager = env.getSourceManager(); | |
| 62 | + | |
| 63 | + this.interpreter = new CommandInterpreter(env); | |
| 64 | + | |
| 65 | + sourcePath = sourceManager.getSourcePath(); | |
| 66 | + root = createDirectoryTree(HEADING); | |
| 67 | + | |
| 68 | + // Create a tree that allows one selection at a time. | |
| 69 | + tree = new JTree(new DefaultTreeModel(root)); | |
| 70 | + tree.setSelectionModel(new SingleLeafTreeSelectionModel()); | |
| 71 | + | |
| 72 | + /****** | |
| 73 | + // Listen for when the selection changes. | |
| 74 | + tree.addTreeSelectionListener(new TreeSelectionListener() { | |
| 75 | + public void valueChanged(TreeSelectionEvent e) { | |
| 76 | + SourceTreeNode node = (SourceTreeNode) | |
| 77 | + (e.getPath().getLastPathComponent()); | |
| 78 | + interpreter.executeCommand("view " + node.getRelativePath()); | |
| 79 | + } | |
| 80 | + }); | |
| 81 | + ******/ | |
| 82 | + | |
| 83 | + MouseListener ml = new MouseAdapter() { | |
| 84 | + @Override | |
| 85 | + public void mouseClicked(MouseEvent e) { | |
| 86 | + int selRow = tree.getRowForLocation(e.getX(), e.getY()); | |
| 87 | + TreePath selPath = tree.getPathForLocation(e.getX(), e.getY()); | |
| 88 | + if(selRow != -1) { | |
| 89 | + if(e.getClickCount() == 1) { | |
| 90 | + SourceTreeNode node = | |
| 91 | + (SourceTreeNode)selPath.getLastPathComponent(); | |
| 92 | + // If user clicks on leaf, select it, and issue 'view' command. | |
| 93 | + if (node.isLeaf()) { | |
| 94 | + tree.setSelectionPath(selPath); | |
| 95 | + interpreter.executeCommand("view " + node.getRelativePath()); | |
| 96 | + } | |
| 97 | + } | |
| 98 | + } | |
| 99 | + } | |
| 100 | + }; | |
| 101 | + tree.addMouseListener(ml); | |
| 102 | + | |
| 103 | + JScrollPane treeView = new JScrollPane(tree); | |
| 104 | + add(treeView); | |
| 105 | + | |
| 106 | + // Create listener for source path changes. | |
| 107 | + | |
| 108 | + SourceTreeToolListener listener = new SourceTreeToolListener(); | |
| 109 | + sourceManager.addSourceListener(listener); | |
| 110 | + | |
| 111 | + //### remove listeners on exit! | |
| 112 | + } | |
| 113 | + | |
| 114 | + private class SourceTreeToolListener implements SourceListener { | |
| 115 | + | |
| 116 | + @Override | |
| 117 | + public void sourcepathChanged(SourcepathChangedEvent e) { | |
| 118 | + sourcePath = sourceManager.getSourcePath(); | |
| 119 | + root = createDirectoryTree(HEADING); | |
| 120 | + tree.setModel(new DefaultTreeModel(root)); | |
| 121 | + } | |
| 122 | + | |
| 123 | + } | |
| 124 | + | |
| 125 | + private static class SourceOrDirectoryFilter implements FilenameFilter { | |
| 126 | + @Override | |
| 127 | + public boolean accept(File dir, String name) { | |
| 128 | + return (name.endsWith(".java") || | |
| 129 | + new File(dir, name).isDirectory()); | |
| 130 | + } | |
| 131 | + } | |
| 132 | + | |
| 133 | + private static FilenameFilter filter = new SourceOrDirectoryFilter(); | |
| 134 | + | |
| 135 | + SourceTreeNode createDirectoryTree(String label) { | |
| 136 | + try { | |
| 137 | + return new SourceTreeNode(label, null, "", true); | |
| 138 | + } catch (SecurityException e) { | |
| 139 | + env.failure("Cannot access source file or directory"); | |
| 140 | + return null; | |
| 141 | + } | |
| 142 | + } | |
| 143 | + | |
| 144 | + | |
| 145 | + class SourceTreeNode implements TreeNode { | |
| 146 | + | |
| 147 | + private String name; | |
| 148 | + private boolean isDirectory; | |
| 149 | + private SourceTreeNode parent; | |
| 150 | + private SourceTreeNode[] children; | |
| 151 | + private String relativePath; | |
| 152 | + private boolean isExpanded; | |
| 153 | + | |
| 154 | + private SourceTreeNode(String label, | |
| 155 | + SourceTreeNode parent, | |
| 156 | + String relativePath, | |
| 157 | + boolean isDirectory) { | |
| 158 | + this.name = label; | |
| 159 | + this.relativePath = relativePath; | |
| 160 | + this.parent = parent; | |
| 161 | + this.isDirectory = isDirectory; | |
| 162 | + } | |
| 163 | + | |
| 164 | + @Override | |
| 165 | + public String toString() { | |
| 166 | + return name; | |
| 167 | + } | |
| 168 | + | |
| 169 | + public String getRelativePath() { | |
| 170 | + return relativePath; | |
| 171 | + } | |
| 172 | + | |
| 173 | + private void expandIfNeeded() { | |
| 174 | + try { | |
| 175 | + if (!isExpanded && isDirectory) { | |
| 176 | + String[] files = sourcePath.children(relativePath, filter); | |
| 177 | + children = new SourceTreeNode[files.length]; | |
| 178 | + for (int i = 0; i < files.length; i++) { | |
| 179 | + String childName = | |
| 180 | + (relativePath.equals("")) | |
| 181 | + ? files[i] | |
| 182 | + : relativePath + File.separator + files[i]; | |
| 183 | + File file = sourcePath.resolve(childName); | |
| 184 | + boolean isDir = (file != null && file.isDirectory()); | |
| 185 | + children[i] = | |
| 186 | + new SourceTreeNode(files[i], this, childName, isDir); | |
| 187 | + } | |
| 188 | + } | |
| 189 | + isExpanded = true; | |
| 190 | + } catch (SecurityException e) { | |
| 191 | + children = null; | |
| 192 | + env.failure("Cannot access source file or directory"); | |
| 193 | + } | |
| 194 | + } | |
| 195 | + | |
| 196 | + // -- interface TreeNode -- | |
| 197 | + | |
| 198 | + /* | |
| 199 | + * Returns the child <code>TreeNode</code> at index | |
| 200 | + * <code>childIndex</code>. | |
| 201 | + */ | |
| 202 | + @Override | |
| 203 | + public TreeNode getChildAt(int childIndex) { | |
| 204 | + expandIfNeeded(); | |
| 205 | + return children[childIndex]; | |
| 206 | + } | |
| 207 | + | |
| 208 | + /** | |
| 209 | + * Returns the number of children <code>TreeNode</code>s the receiver | |
| 210 | + * contains. | |
| 211 | + */ | |
| 212 | + @Override | |
| 213 | + public int getChildCount() { | |
| 214 | + expandIfNeeded(); | |
| 215 | + return children.length; | |
| 216 | + } | |
| 217 | + | |
| 218 | + /** | |
| 219 | + * Returns the parent <code>TreeNode</code> of the receiver. | |
| 220 | + */ | |
| 221 | + @Override | |
| 222 | + public TreeNode getParent() { | |
| 223 | + return parent; | |
| 224 | + } | |
| 225 | + | |
| 226 | + /** | |
| 227 | + * Returns the index of <code>node</code> in the receivers children. | |
| 228 | + * If the receiver does not contain <code>node</code>, -1 will be | |
| 229 | + * returned. | |
| 230 | + */ | |
| 231 | + @Override | |
| 232 | + public int getIndex(TreeNode node) { | |
| 233 | + expandIfNeeded(); | |
| 234 | + for (int i = 0; i < children.length; i++) { | |
| 235 | + if (children[i] == node) { | |
| 236 | + return i; | |
| 237 | + } | |
| 238 | + } | |
| 239 | + return -1; | |
| 240 | + } | |
| 241 | + | |
| 242 | + /** | |
| 243 | + * Returns true if the receiver allows children. | |
| 244 | + */ | |
| 245 | + @Override | |
| 246 | + public boolean getAllowsChildren() { | |
| 247 | + return isDirectory; | |
| 248 | + } | |
| 249 | + | |
| 250 | + /** | |
| 251 | + * Returns true if the receiver is a leaf. | |
| 252 | + */ | |
| 253 | + @Override | |
| 254 | + public boolean isLeaf() { | |
| 255 | + expandIfNeeded(); | |
| 256 | + return !isDirectory; | |
| 257 | + } | |
| 258 | + | |
| 259 | + /** | |
| 260 | + * Returns the children of the receiver as an Enumeration. | |
| 261 | + */ | |
| 262 | + @Override | |
| 263 | + public Enumeration children() { | |
| 264 | + expandIfNeeded(); | |
| 265 | + return new Enumeration() { | |
| 266 | + int i = 0; | |
| 267 | + @Override | |
| 268 | + public boolean hasMoreElements() { | |
| 269 | + return (i < children.length); | |
| 270 | + } | |
| 271 | + @Override | |
| 272 | + public Object nextElement() throws NoSuchElementException { | |
| 273 | + if (i >= children.length) { | |
| 274 | + throw new NoSuchElementException(); | |
| 275 | + } | |
| 276 | + return children[i++]; | |
| 277 | + } | |
| 278 | + }; | |
| 279 | + } | |
| 280 | + | |
| 281 | + } | |
| 282 | + | |
| 283 | +} | |