J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-1999 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 javax.swing.event.*; |
| 34 | import java.awt.*; |
| 35 | import java.awt.event.*; |
| 36 | |
| 37 | import com.sun.jdi.*; |
| 38 | import com.sun.tools.example.debug.event.*; |
| 39 | import com.sun.tools.example.debug.bdi.*; |
| 40 | |
| 41 | public class ClassTreeTool extends JPanel { |
| 42 | |
| 43 | private Environment env; |
| 44 | |
| 45 | private ExecutionManager runtime; |
| 46 | private SourceManager sourceManager; |
| 47 | private ClassManager classManager; |
| 48 | |
| 49 | private JTree tree; |
| 50 | private DefaultTreeModel treeModel; |
| 51 | private ClassTreeNode root; |
| 52 | private SearchPath sourcePath; |
| 53 | |
| 54 | private CommandInterpreter interpreter; |
| 55 | |
| 56 | private static String HEADING = "CLASSES"; |
| 57 | |
| 58 | public ClassTreeTool(Environment env) { |
| 59 | |
| 60 | super(new BorderLayout()); |
| 61 | |
| 62 | this.env = env; |
| 63 | this.runtime = env.getExecutionManager(); |
| 64 | this.sourceManager = env.getSourceManager(); |
| 65 | |
| 66 | this.interpreter = new CommandInterpreter(env); |
| 67 | |
| 68 | root = createClassTree(HEADING); |
| 69 | treeModel = new DefaultTreeModel(root); |
| 70 | |
| 71 | // Create a tree that allows one selection at a time. |
| 72 | |
| 73 | tree = new JTree(treeModel); |
| 74 | tree.setSelectionModel(new SingleLeafTreeSelectionModel()); |
| 75 | |
| 76 | /****** |
| 77 | // Listen for when the selection changes. |
| 78 | tree.addTreeSelectionListener(new TreeSelectionListener() { |
| 79 | public void valueChanged(TreeSelectionEvent e) { |
| 80 | ClassTreeNode node = (ClassTreeNode) |
| 81 | (e.getPath().getLastPathComponent()); |
| 82 | if (node != null) { |
| 83 | interpreter.executeCommand("view " + node.getReferenceTypeName()); |
| 84 | } |
| 85 | } |
| 86 | }); |
| 87 | ******/ |
| 88 | |
| 89 | MouseListener ml = new MouseAdapter() { |
| 90 | public void mouseClicked(MouseEvent e) { |
| 91 | int selRow = tree.getRowForLocation(e.getX(), e.getY()); |
| 92 | TreePath selPath = tree.getPathForLocation(e.getX(), e.getY()); |
| 93 | if(selRow != -1) { |
| 94 | if(e.getClickCount() == 1) { |
| 95 | ClassTreeNode node = |
| 96 | (ClassTreeNode)selPath.getLastPathComponent(); |
| 97 | // If user clicks on leaf, select it, and issue 'view' command. |
| 98 | if (node.isLeaf()) { |
| 99 | tree.setSelectionPath(selPath); |
| 100 | interpreter.executeCommand("view " + node.getReferenceTypeName()); |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | }; |
| 106 | tree.addMouseListener(ml); |
| 107 | |
| 108 | JScrollPane treeView = new JScrollPane(tree); |
| 109 | add(treeView); |
| 110 | |
| 111 | // Create listener. |
| 112 | ClassTreeToolListener listener = new ClassTreeToolListener(); |
| 113 | runtime.addJDIListener(listener); |
| 114 | runtime.addSessionListener(listener); |
| 115 | |
| 116 | //### remove listeners on exit! |
| 117 | } |
| 118 | |
| 119 | private class ClassTreeToolListener extends JDIAdapter |
| 120 | implements JDIListener, SessionListener { |
| 121 | |
| 122 | // SessionListener |
| 123 | |
| 124 | public void sessionStart(EventObject e) { |
| 125 | // Get system classes and any others loaded before attaching. |
| 126 | try { |
| 127 | Iterator iter = runtime.allClasses().iterator(); |
| 128 | while (iter.hasNext()) { |
| 129 | ReferenceType type = ((ReferenceType)iter.next()); |
| 130 | root.addClass(type); |
| 131 | } |
| 132 | } catch (VMDisconnectedException ee) { |
| 133 | // VM terminated unexpectedly. |
| 134 | } catch (NoSessionException ee) { |
| 135 | // Ignore. Should not happen. |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | public void sessionInterrupt(EventObject e) {} |
| 140 | public void sessionContinue(EventObject e) {} |
| 141 | |
| 142 | // JDIListener |
| 143 | |
| 144 | public void classPrepare(ClassPrepareEventSet e) { |
| 145 | root.addClass(e.getReferenceType()); |
| 146 | } |
| 147 | |
| 148 | public void classUnload(ClassUnloadEventSet e) { |
| 149 | root.removeClass(e.getClassName()); |
| 150 | } |
| 151 | |
| 152 | public void vmDisconnect(VMDisconnectEventSet e) { |
| 153 | // Clear contents of this view. |
| 154 | root = createClassTree(HEADING); |
| 155 | treeModel = new DefaultTreeModel(root); |
| 156 | tree.setModel(treeModel); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | ClassTreeNode createClassTree(String label) { |
| 161 | return new ClassTreeNode(label, null); |
| 162 | } |
| 163 | |
| 164 | class ClassTreeNode extends DefaultMutableTreeNode { |
| 165 | |
| 166 | private String name; |
| 167 | private ReferenceType refTy; // null for package |
| 168 | |
| 169 | ClassTreeNode(String name, ReferenceType refTy) { |
| 170 | this.name = name; |
| 171 | this.refTy = refTy; |
| 172 | } |
| 173 | |
| 174 | public String toString() { |
| 175 | return name; |
| 176 | } |
| 177 | |
| 178 | public ReferenceType getReferenceType() { |
| 179 | return refTy; |
| 180 | } |
| 181 | |
| 182 | public String getReferenceTypeName() { |
| 183 | return refTy.name(); |
| 184 | } |
| 185 | |
| 186 | private boolean isPackage() { |
| 187 | return (refTy == null); |
| 188 | } |
| 189 | |
| 190 | public boolean isLeaf() { |
| 191 | return !isPackage(); |
| 192 | } |
| 193 | |
| 194 | public void addClass(ReferenceType refTy) { |
| 195 | addClass(refTy.name(), refTy); |
| 196 | } |
| 197 | |
| 198 | private void addClass(String className, ReferenceType refTy) { |
| 199 | if (className.equals("")) { |
| 200 | return; |
| 201 | } |
| 202 | int pos = className.indexOf('.'); |
| 203 | if (pos < 0) { |
| 204 | insertNode(className, refTy); |
| 205 | } else { |
| 206 | String head = className.substring(0, pos); |
| 207 | String tail = className.substring(pos + 1); |
| 208 | ClassTreeNode child = insertNode(head, null); |
| 209 | child.addClass(tail, refTy); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | private ClassTreeNode insertNode(String name, ReferenceType refTy) { |
| 214 | for (int i = 0; i < getChildCount(); i++) { |
| 215 | ClassTreeNode child = (ClassTreeNode)getChildAt(i); |
| 216 | int cmp = name.compareTo(child.toString()); |
| 217 | if (cmp == 0) { |
| 218 | // like-named node already exists |
| 219 | return child; |
| 220 | } else if (cmp < 0) { |
| 221 | // insert new node before the child |
| 222 | ClassTreeNode newChild = new ClassTreeNode(name, refTy); |
| 223 | treeModel.insertNodeInto(newChild, this, i); |
| 224 | return newChild; |
| 225 | } |
| 226 | } |
| 227 | // insert new node after last child |
| 228 | ClassTreeNode newChild = new ClassTreeNode(name, refTy); |
| 229 | treeModel.insertNodeInto(newChild, this, getChildCount()); |
| 230 | return newChild; |
| 231 | } |
| 232 | |
| 233 | public void removeClass(String className) { |
| 234 | if (className.equals("")) { |
| 235 | return; |
| 236 | } |
| 237 | int pos = className.indexOf('.'); |
| 238 | if (pos < 0) { |
| 239 | ClassTreeNode child = findNode(className); |
| 240 | if (!isPackage()) { |
| 241 | treeModel.removeNodeFromParent(child); |
| 242 | } |
| 243 | } else { |
| 244 | String head = className.substring(0, pos); |
| 245 | String tail = className.substring(pos + 1); |
| 246 | ClassTreeNode child = findNode(head); |
| 247 | child.removeClass(tail); |
| 248 | if (isPackage() && child.getChildCount() < 1) { |
| 249 | // Prune non-leaf nodes with no children. |
| 250 | treeModel.removeNodeFromParent(child); |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | private ClassTreeNode findNode(String name) { |
| 256 | for (int i = 0; i < getChildCount(); i++) { |
| 257 | ClassTreeNode child = (ClassTreeNode)getChildAt(i); |
| 258 | int cmp = name.compareTo(child.toString()); |
| 259 | if (cmp == 0) { |
| 260 | return child; |
| 261 | } else if (cmp > 0) { |
| 262 | // not found, since children are sorted |
| 263 | return null; |
| 264 | } |
| 265 | } |
| 266 | return null; |
| 267 | } |
| 268 | |
| 269 | } |
| 270 | |
| 271 | } |