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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.awt.*; | ||
| 30 | import java.awt.event.*; | ||
| 31 | import javax.swing.*; | ||
| 32 | |||
| 33 | import com.sun.jdi.*; | ||
| 34 | import com.sun.jdi.request.*; | ||
| 35 | |||
| 36 | import com.sun.tools.example.debug.bdi.*; | ||
| 37 | |||
| 38 | public class SourceTool extends JPanel { | ||
| 39 | |||
| 40 | private static final long serialVersionUID = -5461299294186395257L; | ||
| 41 | |||
| 42 | private Environment env; | ||
| 43 | |||
| 44 | private ExecutionManager runtime; | ||
| 45 | private ContextManager context; | ||
| 46 | private SourceManager sourceManager; | ||
| 47 | |||
| 48 | private JList list; | ||
| 49 | private ListModel sourceModel; | ||
| 50 | |||
| 51 | // Information on source file that is on display, or failed to be | ||
| 52 | // displayed due to inaccessible source. Used to update display | ||
| 53 | // when sourcepath is changed. | ||
| 54 | |||
| 55 | private String sourceName; // relative path name, if showSourceFile | ||
| 56 | private Location sourceLocn; // location, if showSourceForLocation | ||
| 57 | private CommandInterpreter interpreter; | ||
| 58 | |||
| 59 | public SourceTool(Environment env) { | ||
| 60 | |||
| 61 | super(new BorderLayout()); | ||
| 62 | |||
| 63 | this.env = env; | ||
| 64 | |||
| 65 | runtime = env.getExecutionManager(); | ||
| 66 | sourceManager = env.getSourceManager(); | ||
| 67 | this.context = env.getContextManager(); | ||
| 68 | this.interpreter = new CommandInterpreter(env, true); | ||
| 69 | |||
| 70 | sourceModel = new DefaultListModel(); // empty | ||
| 71 | |||
| 72 | list = new JList(sourceModel); | ||
| 73 | list.setCellRenderer(new SourceLineRenderer()); | ||
| 74 | |||
| 75 | list.setPrototypeCellValue(SourceModel.prototypeCellValue); | ||
| 76 | |||
| 77 | SourceToolListener listener = new SourceToolListener(); | ||
| 78 | context.addContextListener(listener); | ||
| 79 | runtime.addSpecListener(listener); | ||
| 80 | sourceManager.addSourceListener(listener); | ||
| 81 | |||
| 82 | MouseListener squeek = new STMouseListener(); | ||
| 83 | list.addMouseListener(squeek); | ||
| 84 | |||
| 85 | add(new JScrollPane(list)); | ||
| 86 | } | ||
| 87 | |||
| 88 | public void setTextFont(Font f) { | ||
| 89 | list.setFont(f); | ||
| 90 | list.setPrototypeCellValue(SourceModel.prototypeCellValue); | ||
| 91 | } | ||
| 92 | |||
| 93 | private class SourceToolListener | ||
| 94 | implements ContextListener, SourceListener, SpecListener | ||
| 95 | { | ||
| 96 | |||
| 97 | // ContextListener | ||
| 98 | |||
| 99 | @Override | ||
| 100 | public void currentFrameChanged(CurrentFrameChangedEvent e) { | ||
| 101 | showSourceContext(e.getThread(), e.getIndex()); | ||
| 102 | } | ||
| 103 | |||
| 104 | // Clear source view. | ||
| 105 | // sourceModel = new DefaultListModel(); // empty | ||
| 106 | |||
| 107 | // SourceListener | ||
| 108 | |||
| 109 | @Override | ||
| 110 | public void sourcepathChanged(SourcepathChangedEvent e) { | ||
| 111 | // Reload source view if its contents depend | ||
| 112 | // on the source path. | ||
| 113 | if (sourceName != null) { | ||
| 114 | showSourceFile(sourceName); | ||
| 115 | } else if (sourceLocn != null) { | ||
| 116 | showSourceForLocation(sourceLocn); | ||
| 117 | } | ||
| 118 | } | ||
| 119 | |||
| 120 | // SpecListener | ||
| 121 | |||
| 122 | @Override | ||
| 123 | public void breakpointSet(SpecEvent e) { | ||
| 124 | breakpointResolved(e); | ||
| 125 | } | ||
| 126 | |||
| 127 | @Override | ||
| 128 | public void breakpointDeferred(SpecEvent e) { } | ||
| 129 | |||
| 130 | @Override | ||
| 131 | public void breakpointDeleted(SpecEvent e) { | ||
| 132 | BreakpointRequest req = (BreakpointRequest)e.getEventRequest(); | ||
| 133 | Location loc = req.location(); | ||
| 134 | if (loc != null) { | ||
| 135 | try { | ||
| 136 | SourceModel sm = sourceManager.sourceForLocation(loc); | ||
| 137 | sm.showBreakpoint(loc.lineNumber(), false); | ||
| 138 | showSourceForLocation(loc); | ||
| 139 | } catch (Exception exc) { | ||
| 140 | } | ||
| 141 | } | ||
| 142 | } | ||
| 143 | |||
| 144 | @Override | ||
| 145 | public void breakpointResolved(SpecEvent e) { | ||
| 146 | BreakpointRequest req = (BreakpointRequest)e.getEventRequest(); | ||
| 147 | Location loc = req.location(); | ||
| 148 | try { | ||
| 149 | SourceModel sm = sourceManager.sourceForLocation(loc); | ||
| 150 | sm.showBreakpoint(loc.lineNumber(), true); | ||
| 151 | showSourceForLocation(loc); | ||
| 152 | } catch (Exception exc) { | ||
| 153 | } | ||
| 154 | } | ||
| 155 | |||
| 156 | @Override | ||
| 157 | public void breakpointError(SpecErrorEvent e) { | ||
| 158 | breakpointDeleted(e); | ||
| 159 | } | ||
| 160 | |||
| 161 | @Override | ||
| 162 | public void watchpointSet(SpecEvent e) { | ||
| 163 | } | ||
| 164 | @Override | ||
| 165 | public void watchpointDeferred(SpecEvent e) { | ||
| 166 | } | ||
| 167 | @Override | ||
| 168 | public void watchpointDeleted(SpecEvent e) { | ||
| 169 | } | ||
| 170 | @Override | ||
| 171 | public void watchpointResolved(SpecEvent e) { | ||
| 172 | } | ||
| 173 | @Override | ||
| 174 | public void watchpointError(SpecErrorEvent e) { | ||
| 175 | } | ||
| 176 | |||
| 177 | @Override | ||
| 178 | public void exceptionInterceptSet(SpecEvent e) { | ||
| 179 | } | ||
| 180 | @Override | ||
| 181 | public void exceptionInterceptDeferred(SpecEvent e) { | ||
| 182 | } | ||
| 183 | @Override | ||
| 184 | public void exceptionInterceptDeleted(SpecEvent e) { | ||
| 185 | } | ||
| 186 | @Override | ||
| 187 | public void exceptionInterceptResolved(SpecEvent e) { | ||
| 188 | } | ||
| 189 | @Override | ||
| 190 | public void exceptionInterceptError(SpecErrorEvent e) { | ||
| 191 | } | ||
| 192 | } | ||
| 193 | |||
| 194 | private void showSourceContext(ThreadReference thread, int index) { | ||
| 195 | //### Should use ThreadInfo here. | ||
| 196 | StackFrame frame = null; | ||
| 197 | if (thread != null) { | ||
| 198 | try { | ||
| 199 | frame = thread.frame(index); | ||
| 200 | } catch (IncompatibleThreadStateException e) {} | ||
| 201 | } | ||
| 202 | if (frame == null) { | ||
| 203 | return; | ||
| 204 | } | ||
| 205 | Location locn = frame.location(); | ||
| 206 | /***** | ||
| 207 | if (!showSourceForLocation(locn)) { | ||
| 208 | env.notice("Could not display source for " | ||
| 209 | + Utils.locationString(locn)); | ||
| 210 | } | ||
| 211 | *****/ | ||
| 212 | showSourceForLocation(locn); | ||
| 213 | } | ||
| 214 | |||
| 215 | public boolean showSourceForLocation(Location locn) { | ||
| 216 | sourceName = null; | ||
| 217 | sourceLocn = locn; | ||
| 218 | int lineNo = locn.lineNumber(); | ||
| 219 | if (lineNo != -1) { | ||
| 220 | SourceModel source = sourceManager.sourceForLocation(locn); | ||
| 221 | if (source != null) { | ||
| 222 | showSourceAtLine(source, lineNo-1); | ||
| 223 | return true; | ||
| 224 | } | ||
| 225 | } | ||
| 226 | // Here if we could not display source. | ||
| 227 | showSourceUnavailable(); | ||
| 228 | return false; | ||
| 229 | } | ||
| 230 | |||
| 231 | public boolean showSourceFile(String fileName) { | ||
| 232 | sourceLocn = null; | ||
| 233 | File file; | ||
| 234 | if (!fileName.startsWith(File.separator)) { | ||
| 235 | sourceName = fileName; | ||
| 236 | SearchPath sourcePath = sourceManager.getSourcePath(); | ||
| 237 | file = sourcePath.resolve(fileName); | ||
| 238 | if (file == null) { | ||
| 239 | //env.failure("Source not found on current source path."); | ||
| 240 | showSourceUnavailable(); | ||
| 241 | return false; | ||
| 242 | } | ||
| 243 | } else { | ||
| 244 | sourceName = null; // Absolute pathname does not depend on sourcepath. | ||
| 245 | file = new File(fileName); | ||
| 246 | } | ||
| 247 | SourceModel source = sourceManager.sourceForFile(file); | ||
| 248 | if (source != null) { | ||
| 249 | showSource(source); | ||
| 250 | return true; | ||
| 251 | } | ||
| 252 | showSourceUnavailable(); | ||
| 253 | return false; | ||
| 254 | } | ||
| 255 | |||
| 256 | private void showSource(SourceModel model) { | ||
| 257 | setViewModel(model); | ||
| 258 | } | ||
| 259 | |||
| 260 | private void showSourceAtLine(SourceModel model, int lineNo) { | ||
| 261 | setViewModel(model); | ||
| 262 | if (model.isActuallySource && (lineNo < model.getSize())) { | ||
| 263 | list.setSelectedIndex(lineNo); | ||
| 264 | if (lineNo+4 < model.getSize()) { | ||
| 265 | list.ensureIndexIsVisible(lineNo+4); // give some context | ||
| 266 | } | ||
| 267 | list.ensureIndexIsVisible(lineNo); | ||
| 268 | } | ||
| 269 | } | ||
| 270 | |||
| 271 | private void showSourceUnavailable() { | ||
| 272 | SourceModel model = new SourceModel("[Source code is not available]"); | ||
| 273 | setViewModel(model); | ||
| 274 | } | ||
| 275 | |||
| 276 | private void setViewModel(SourceModel model) { | ||
| 277 | if (model != sourceModel) { | ||
| 278 | // install new model | ||
| 279 | list.setModel(model); | ||
| 280 | sourceModel = model; | ||
| 281 | } | ||
| 282 | } | ||
| 283 | |||
| 284 | private class SourceLineRenderer extends DefaultListCellRenderer { | ||
| 285 | |||
| 286 | @Override | ||
| 287 | public Component getListCellRendererComponent(JList list, | ||
| 288 | Object value, | ||
| 289 | int index, | ||
| 290 | boolean isSelected, | ||
| 291 | boolean cellHasFocus) { | ||
| 292 | |||
| 293 | //### Should set background highlight and/or icon if breakpoint on this line. | ||
| 294 | // Configures "this" | ||
| 295 | super.getListCellRendererComponent(list, value, index, | ||
| 296 | isSelected, cellHasFocus); | ||
| 297 | |||
| 298 | SourceModel.Line line = (SourceModel.Line)value; | ||
| 299 | |||
| 300 | //### Tab expansion is now done when source file is read in, | ||
| 301 | //### to speed up display. This costs a lot of space, slows | ||
| 302 | //### down source file loading, and has not been demonstrated | ||
| 303 | //### to yield an observable improvement in display performance. | ||
| 304 | //### Measurements may be appropriate here. | ||
| 305 | //String sourceLine = expandTabs((String)value); | ||
| 306 | setText(line.text); | ||
| 307 | if (line.hasBreakpoint) { | ||
| 308 | setIcon(Icons.stopSignIcon); | ||
| 309 | } else if (line.isExecutable()) { | ||
| 310 | setIcon(Icons.execIcon); | ||
| 311 | } else { | ||
| 312 | setIcon(Icons.blankIcon); | ||
| 313 | } | ||
| 314 | |||
| 315 | |||
| 316 | return this; | ||
| 317 | } | ||
| 318 | |||
| 319 | @Override | ||
| 320 | public Dimension getPreferredSize() { | ||
| 321 | Dimension dim = super.getPreferredSize(); | ||
| 322 | return new Dimension(dim.width, dim.height-5); | ||
| 323 | } | ||
| 324 | |||
| 325 | } | ||
| 326 | |||
| 327 | private class STMouseListener extends MouseAdapter implements MouseListener { | ||
| 328 | @Override | ||
| 329 | public void mousePressed(MouseEvent e) { | ||
| 330 | if (e.isPopupTrigger()) { | ||
| 331 | showPopupMenu((Component)e.getSource(), | ||
| 332 | e.getX(), e.getY()); | ||
| 333 | } | ||
| 334 | } | ||
| 335 | |||
| 336 | @Override | ||
| 337 | public void mouseReleased(MouseEvent e) { | ||
| 338 | if (e.isPopupTrigger()) { | ||
| 339 | showPopupMenu((Component)e.getSource(), | ||
| 340 | e.getX(), e.getY()); | ||
| 341 | } | ||
| 342 | } | ||
| 343 | |||
| 344 | private void showPopupMenu(Component invoker, int x, int y) { | ||
| 345 | JList list = (JList)invoker; | ||
| 346 | int ln = list.getSelectedIndex() + 1; | ||
| 347 | SourceModel.Line line = | ||
| 348 | (SourceModel.Line)list.getSelectedValue(); | ||
| 349 | JPopupMenu popup = new JPopupMenu(); | ||
| 350 | |||
| 351 | if (line == null) { | ||
| 352 | popup.add(new JMenuItem("please select a line")); | ||
| 353 | } else if (line.isExecutable()) { | ||
| 354 | String className = line.refType.name(); | ||
| 355 | if (line.hasBreakpoint()) { | ||
| 356 | popup.add(commandItem("Clear Breakpoint", | ||
| 357 | "clear " + className + | ||
| 358 | ":" + ln)); | ||
| 359 | } else { | ||
| 360 | popup.add(commandItem("Set Breakpoint", | ||
| 361 | "stop at " + className + | ||
| 362 | ":" + ln)); | ||
| 363 | } | ||
| 364 | } else { | ||
| 365 | popup.add(new JMenuItem("not an executable line")); | ||
| 366 | } | ||
| 367 | |||
| 368 | popup.show(invoker, | ||
| 369 | x + popup.getWidth()/2, y + popup.getHeight()/2); | ||
| 370 | } | ||
| 371 | |||
| 372 | private JMenuItem commandItem(String label, final String cmd) { | ||
| 373 | JMenuItem item = new JMenuItem(label); | ||
| 374 | item.addActionListener(new ActionListener() { | ||
| 375 | @Override | ||
| 376 | public void actionPerformed(ActionEvent e) { | ||
| 377 | interpreter.executeCommand(cmd); | ||
| 378 | } | ||
| 379 | }); | ||
| 380 | return item; | ||
| 381 | } | ||
| 382 | } | ||
| 383 | } | ||