tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/editors/TmfEventsEditor.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010, 2015 Ericsson, École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *   Geneviève Bastien - Experiment instantiated with experiment type
  12  *******************************************************************************/
  13
  14 package org.eclipse.tracecompass.tmf.ui.editors;
  15
  16 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  17
  18 import java.util.HashSet;
  19 import java.util.List;
  20 import java.util.Set;
  21
  22 import org.eclipse.core.resources.IFile;
  23 import org.eclipse.core.resources.IMarker;
  24 import org.eclipse.core.resources.IMarkerDelta;
  25 import org.eclipse.core.resources.IResource;
  26 import org.eclipse.core.resources.IResourceChangeEvent;
  27 import org.eclipse.core.resources.IResourceChangeListener;
  28 import org.eclipse.core.resources.IResourceDelta;
  29 import org.eclipse.core.resources.ResourcesPlugin;
  30 import org.eclipse.core.runtime.CoreException;
  31 import org.eclipse.core.runtime.IProgressMonitor;
  32 import org.eclipse.core.runtime.InvalidRegistryObjectException;
  33 import org.eclipse.core.runtime.ListenerList;
  34 import org.eclipse.jdt.annotation.NonNull;
  35 import org.eclipse.jdt.annotation.Nullable;
  36 import org.eclipse.jface.action.IStatusLineManager;
  37 import org.eclipse.jface.util.SafeRunnable;
  38 import org.eclipse.jface.viewers.ISelection;
  39 import org.eclipse.jface.viewers.ISelectionChangedListener;
  40 import org.eclipse.jface.viewers.ISelectionProvider;
  41 import org.eclipse.jface.viewers.SelectionChangedEvent;
  42 import org.eclipse.jface.viewers.StructuredSelection;
  43 import org.eclipse.swt.widgets.Composite;
  44 import org.eclipse.swt.widgets.Display;
  45 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  46 import org.eclipse.tracecompass.internal.tmf.ui.editors.ITmfEventsEditorConstants;
  47 import org.eclipse.tracecompass.tmf.core.TmfCommonConstants;
  48 import org.eclipse.tracecompass.tmf.core.event.aspect.ITmfEventAspect;
  49 import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler;
  50 import org.eclipse.tracecompass.tmf.core.signal.TmfTimestampFormatUpdateSignal;
  51 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceClosedSignal;
  52 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceOpenedSignal;
  53 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal;
  54 import org.eclipse.tracecompass.tmf.core.trace.ITmfContext;
  55 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  56 import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperiment;
  57 import org.eclipse.tracecompass.tmf.ui.project.model.Messages;
  58 import org.eclipse.tracecompass.tmf.ui.project.model.TmfExperimentElement;
  59 import org.eclipse.tracecompass.tmf.ui.project.model.TmfOpenTraceHelper;
  60 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectElement;
  61 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectRegistry;
  62 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceElement;
  63 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceTypeUIUtils;
  64 import org.eclipse.tracecompass.tmf.ui.viewers.events.TmfEventsTable;
  65 import org.eclipse.ui.IEditorInput;
  66 import org.eclipse.ui.IEditorPart;
  67 import org.eclipse.ui.IEditorSite;
  68 import org.eclipse.ui.IFileEditorInput;
  69 import org.eclipse.ui.IPartListener;
  70 import org.eclipse.ui.IPropertyListener;
  71 import org.eclipse.ui.IReusableEditor;
  72 import org.eclipse.ui.IWorkbenchPart;
  73 import org.eclipse.ui.PartInitException;
  74 import org.eclipse.ui.PlatformUI;
  75 import org.eclipse.ui.ide.IGotoMarker;
  76 import org.eclipse.ui.part.FileEditorInput;
  77 import org.eclipse.ui.views.properties.IPropertySheetPage;
  78
  79 import com.google.common.collect.ImmutableSet;
  80 import com.google.common.collect.Iterables;
  81
  82 /**
  83  * Editor for TMF events
  84  *
  85  * @author Patrick Tasse
  86  */
  87 public class TmfEventsEditor extends TmfEditor implements ITmfTraceEditor, IReusableEditor, IPropertyListener, IResourceChangeListener, ISelectionProvider, ISelectionChangedListener, IPartListener, IGotoMarker {
  88
  89     /** ID for this class */
  90     public static final String ID = "org.eclipse.linuxtools.tmf.ui.editors.events"; //$NON-NLS-1$
  91
  92     private TmfEventsTable fEventsTable;
  93     private IFile fFile;
  94     private ITmfTrace fTrace;
  95     private Composite fParent;
  96     private ListenerList fSelectionChangedListeners = new ListenerList();
  97     private boolean fTraceSelected;
  98     private IMarker fPendingGotoMarker;
  99
 100     @Override
 101     public void doSave(final IProgressMonitor monitor) {
 102     }
 103
 104     @Override
 105     public void doSaveAs() {
 106     }
 107
 108     @Override
 109     public void init(final IEditorSite site, IEditorInput input) throws PartInitException {
 110         IFileEditorInput fileEditorInput;
 111         if (input instanceof TmfEditorInput) {
 112             fFile = ((TmfEditorInput) input).getFile();
 113             fTrace = ((TmfEditorInput) input).getTrace();
 114             /* change the input to a FileEditorInput to allow open handlers to find this editor */
 115             fileEditorInput = new FileEditorInput(fFile);
 116         } else if (input instanceof IFileEditorInput) {
 117             fileEditorInput = (IFileEditorInput) input;
 118             fFile = fileEditorInput.getFile();
 119             if (fFile == null) {
 120                 throw new PartInitException("Invalid IFileEditorInput: " + fileEditorInput); //$NON-NLS-1$
 121             }
 122             try {
 123                 final String traceTypeId = fFile.getPersistentProperty(TmfCommonConstants.TRACETYPE);
 124                 if (traceTypeId == null) {
 125                     throw new PartInitException(Messages.TmfOpenTraceHelper_NoTraceType);
 126                 }
 127                 if (ITmfEventsEditorConstants.EXPERIMENT_INPUT_TYPE_CONSTANTS.contains(traceTypeId)) {
 128                     // Special case: experiment bookmark resource
 129                     final TmfProjectElement project = TmfProjectRegistry.getProject(fFile.getProject(), true);
 130                     if (project == null) {
 131                         throw new PartInitException(Messages.TmfOpenTraceHelper_NoTraceType);
 132                     }
 133                     for (final TmfExperimentElement experimentElement : project.getExperimentsFolder().getExperiments()) {
 134                         if (experimentElement.getResource().equals(fFile.getParent())) {
 135                             setPartName(experimentElement.getName());
 136                             super.setSite(site);
 137                             super.setInput(fileEditorInput);
 138                             TmfOpenTraceHelper.reopenTraceFromElement(experimentElement, this);
 139                             return;
 140                         }
 141                     }
 142                 } else if (ITmfEventsEditorConstants.TRACE_INPUT_TYPE_CONSTANTS.contains(traceTypeId)) {
 143                     // Special case: trace bookmark resource
 144                     final TmfProjectElement project = TmfProjectRegistry.getProject(fFile.getProject(), true);
 145                     for (final TmfTraceElement traceElement : project.getTracesFolder().getTraces()) {
 146                         if (traceElement.getResource().equals(fFile.getParent())) {
 147                             setPartName(traceElement.getElementPath());
 148                             super.setSite(site);
 149                             super.setInput(fileEditorInput);
 150                             TmfOpenTraceHelper.reopenTraceFromElement(traceElement, this);
 151                             return;
 152                         }
 153                     }
 154                 } else {
 155                     final TmfProjectElement project = TmfProjectRegistry.getProject(fFile.getProject(), true);
 156                     for (final TmfTraceElement traceElement : project.getTracesFolder().getTraces()) {
 157                         if (traceElement.getResource().equals(fFile)) {
 158                             setPartName(traceElement.getElementPath());
 159                             super.setSite(site);
 160                             super.setInput(fileEditorInput);
 161                             TmfOpenTraceHelper.reopenTraceFromElement(traceElement, this);
 162                             return;
 163                         }
 164                     }
 165                 }
 166             } catch (final PartInitException e) {
 167                 throw e;
 168             } catch (final InvalidRegistryObjectException e) {
 169                 Activator.getDefault().logError("Error initializing TmfEventsEditor", e); //$NON-NLS-1$
 170             } catch (final CoreException e) {
 171                 Activator.getDefault().logError("Error initializing TmfEventsEditor", e); //$NON-NLS-1$
 172             }
 173         } else {
 174             throw new PartInitException("Invalid IEditorInput: " + input.getClass()); //$NON-NLS-1$
 175         }
 176         if (fTrace == null) {
 177             throw new PartInitException("Invalid IEditorInput: " + fFile.getName()); //$NON-NLS-1$
 178         }
 179         super.setSite(site);
 180         super.setInput(fileEditorInput);
 181     }
 182
 183     @Override
 184     public boolean isDirty() {
 185         return false;
 186     }
 187
 188     @Override
 189     public boolean isSaveAsAllowed() {
 190         return false;
 191     }
 192
 193     @Override
 194     public void setInput(final IEditorInput input) {
 195         super.setInput(input);
 196         firePropertyChange(IEditorPart.PROP_INPUT);
 197     }
 198
 199     @Override
 200     public void propertyChanged(final Object source, final int propId) {
 201         if (propId == IEditorPart.PROP_INPUT && getEditorInput() instanceof TmfEditorInput) {
 202             if (fTrace != null) {
 203                 broadcast(new TmfTraceClosedSignal(this, fTrace));
 204                 TmfTraceColumnManager.saveColumnOrder(fTrace.getTraceTypeId(), fEventsTable.getColumnOrder());
 205             }
 206             fEventsTable.dispose();
 207             fFile = ((TmfEditorInput) getEditorInput()).getFile();
 208             fTrace = ((TmfEditorInput) getEditorInput()).getTrace();
 209             /* change the input to a FileEditorInput to allow open handlers to find this editor */
 210             super.setInput(new FileEditorInput(fFile));
 211             createAndInitializeTable();
 212             // The table was swapped for a new one, make sure it gets focus if
 213             // the editor is active. Otherwise, the new table will not get focus
 214             // because the editor already had focus.
 215             if (!PlatformUI.getWorkbench().isClosing() && PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart() == getSite().getPart()) {
 216                 fEventsTable.setFocus();
 217             }
 218             fParent.layout();
 219         }
 220     }
 221
 222     @Override
 223     public void createPartControl(final Composite parent) {
 224         fParent = parent;
 225         createAndInitializeTable();
 226         addPropertyListener(this);
 227         ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE);
 228         // we need to wrap the ISelectionProvider interface in the editor because
 229         // the events table can be replaced later while the selection changed listener
 230         // is only added once by the platform to the selection provider set here
 231         getSite().setSelectionProvider(this);
 232         getSite().getPage().addPartListener(this);
 233     }
 234
 235     private void createAndInitializeTable() {
 236         if (fTrace != null) {
 237             setPartName(fTrace.getName());
 238             fEventsTable = createEventsTable(fParent, fTrace.getCacheSize());
 239             fEventsTable.registerContextMenus(getSite());
 240             fEventsTable.setColumnOrder(TmfTraceColumnManager.loadColumnOrder(fTrace.getTraceTypeId()));
 241             fEventsTable.addSelectionChangedListener(this);
 242             fEventsTable.setTrace(fTrace, true);
 243             fEventsTable.refreshBookmarks(fFile);
 244
 245             /* ensure start time is set */
 246             final ITmfContext context = fTrace.seekEvent(0);
 247             fTrace.getNext(context);
 248             context.dispose();
 249
 250             broadcast(new TmfTraceOpenedSignal(this, fTrace, fFile));
 251             if (fTraceSelected) {
 252                 broadcast(new TmfTraceSelectedSignal(this, fTrace));
 253             }
 254
 255             /* go to marker after trace opened */
 256             if (fPendingGotoMarker != null) {
 257                 fEventsTable.gotoMarker(fPendingGotoMarker);
 258                 fPendingGotoMarker = null;
 259             }
 260         } else {
 261             fEventsTable = new TmfEventsTable(fParent, 0);
 262             fEventsTable.addSelectionChangedListener(this);
 263         }
 264         IStatusLineManager statusLineManager = getEditorSite().getActionBars().getStatusLineManager();
 265         fEventsTable.setStatusLineManager(statusLineManager);
 266     }
 267
 268     @Override
 269     public void dispose() {
 270         if (getSite() != null) {
 271             getSite().getPage().removePartListener(this);
 272         }
 273         ResourcesPlugin.getWorkspace().removeResourceChangeListener(this);
 274         removePropertyListener(this);
 275         if (fTrace != null) {
 276             broadcast(new TmfTraceClosedSignal(this, fTrace));
 277             if (fEventsTable != null) {
 278                 TmfTraceColumnManager.saveColumnOrder(fTrace.getTraceTypeId(), fEventsTable.getColumnOrder());
 279             }
 280         }
 281         if (fEventsTable != null) {
 282             fEventsTable.dispose();
 283         }
 284         super.dispose();
 285     }
 286
 287     /**
 288      * Create the event table
 289      *
 290      * @param parent
 291      *            The parent composite
 292      * @param cacheSize
 293      *            The cache size
 294      * @return The event table instance
 295      */
 296     protected @NonNull TmfEventsTable createEventsTable(final Composite parent, final int cacheSize) {
 297         ITmfTrace trace = fTrace;
 298
 299         /*
 300          * Check if the trace (or experiment type) defines a specific event
 301          * table in its extension point.
 302          */
 303         TmfEventsTable table = TmfTraceTypeUIUtils.getEventTable(trace, parent, cacheSize);
 304         if (table != null) {
 305             return table;
 306         }
 307
 308         /*
 309          * Use the aspects defined by the trace type (or each trace type in an
 310          * experiment) to build a table consisting of these.
 311          */
 312         Iterable<ITmfEventAspect> aspects = getTraceAspects(trace);
 313         if (Iterables.isEmpty(aspects)) {
 314             /* Couldn't find any event aspects, use a default table */
 315             return new TmfEventsTable(parent, cacheSize);
 316         }
 317         return new TmfEventsTable(parent, cacheSize, aspects);
 318     }
 319
 320     /**
 321      * Get the event table for the given trace. It will be of the type defined
 322      * by the extension point if applicable, else it will be a default table
 323      * with the extension-point-defined columns (if any).
 324      *
 325      * @param trace
 326      *            The event table is for this trace
 327      * @param parent
 328      *            The parent composite of the table
 329      * @param cacheSize
 330      *            The cache size to use
 331      * @return The event table for the trace
 332      */
 333     private static @NonNull Iterable<ITmfEventAspect> getTraceAspects(ITmfTrace trace) {
 334         if (trace instanceof TmfExperiment) {
 335             return getExperimentAspects((TmfExperiment) trace);
 336         }
 337         return trace.getEventAspects();
 338     }
 339
 340     /**
 341      * Get the events table for an experiment. If all traces in the experiment
 342      * are of the same type, use the same behavior as if it was one trace of
 343      * that type.
 344      *
 345      * @param experiment
 346      *            the experiment
 347      * @param parent
 348      *            the parent Composite
 349      * @param cacheSize
 350      *            the event table cache size
 351      * @return An event table of the appropriate type
 352      */
 353     private static @NonNull Iterable<ITmfEventAspect> getExperimentAspects(
 354             final TmfExperiment experiment) {
 355         List<ITmfTrace> traces = experiment.getTraces();
 356         ImmutableSet.Builder<ITmfEventAspect> builder = new ImmutableSet.Builder<>();
 357
 358         /* For experiments, we'll add a "trace name" aspect/column */
 359         builder.add(ITmfEventAspect.BaseAspects.TRACE_NAME);
 360
 361         String commonTraceType = getCommonTraceType(experiment);
 362         if (commonTraceType != null) {
 363             /*
 364              * All the traces in this experiment are of the same type, let's
 365              * just use the normal table for that type.
 366              */
 367             builder.addAll(traces.get(0).getEventAspects());
 368
 369         } else {
 370             /*
 371              * There are different trace types in the experiment, so we are
 372              * definitely using a TmfEventsTable. Aggregate the columns from all
 373              * trace types.
 374              */
 375             for (ITmfTrace trace : traces) {
 376                 Iterable<ITmfEventAspect> traceAspects = trace.getEventAspects();
 377                 builder.addAll(traceAspects);
 378             }
 379         }
 380         return checkNotNull(builder.build());
 381     }
 382
 383     /**
 384      * Check if an experiment contains traces of all the same type. If so,
 385      * returns this type as a String. If not, returns null.
 386      *
 387      * @param experiment
 388      *            The experiment
 389      * @return The common trace type if there is one, or 'null' if there are
 390      *         different types.
 391      */
 392     private static @Nullable String getCommonTraceType(TmfExperiment experiment) {
 393         String commonTraceType = null;
 394         try {
 395             for (final ITmfTrace trace : experiment.getTraces()) {
 396                 final IResource resource = trace.getResource();
 397                 if (resource == null) {
 398                     return null;
 399                 }
 400
 401                 final String traceType = resource.getPersistentProperty(TmfCommonConstants.TRACETYPE);
 402                 if ((commonTraceType != null) && !commonTraceType.equals(traceType)) {
 403                     return null;
 404                 }
 405                 commonTraceType = traceType;
 406             }
 407         } catch (CoreException e) {
 408             /*
 409              * One of the traces didn't advertise its type, we can't infer
 410              * anything.
 411              */
 412             return null;
 413         }
 414         return commonTraceType;
 415     }
 416
 417     @Override
 418     public ITmfTrace getTrace() {
 419         return fTrace;
 420     }
 421
 422     @Override
 423     public void setFocus() {
 424         fEventsTable.setFocus();
 425     }
 426
 427     @Override
 428     public <T> T getAdapter(final Class<T> adapter) {
 429         if (IGotoMarker.class.equals(adapter)) {
 430             if (fTrace == null || fEventsTable == null) {
 431                 return adapter.cast(this);
 432             }
 433             return adapter.cast(fEventsTable);
 434         } else if (IPropertySheetPage.class.equals(adapter)) {
 435             return adapter.cast(new UnsortedPropertySheetPage());
 436         }
 437         return super.getAdapter(adapter);
 438     }
 439
 440     @Override
 441     public void gotoMarker(IMarker marker) {
 442         if (fTrace == null || fEventsTable == null) {
 443             fPendingGotoMarker = marker;
 444         } else {
 445             fEventsTable.gotoMarker(marker);
 446         }
 447     }
 448
 449     @Override
 450     public void resourceChanged(final IResourceChangeEvent event) {
 451         final Set<IMarker> added = new HashSet<>();
 452         final Set<IMarker> removed = new HashSet<>();
 453         boolean deltaFound = false;
 454         for (final IMarkerDelta delta : event.findMarkerDeltas(IMarker.BOOKMARK, false)) {
 455             if (delta.getResource().equals(fFile)) {
 456                 if (delta.getKind() == IResourceDelta.REMOVED) {
 457                     removed.add(delta.getMarker());
 458                 } else if (delta.getKind() == IResourceDelta.ADDED) {
 459                     added.add(delta.getMarker());
 460                 }
 461                 /* this also covers IResourceDelta.CHANGED */
 462                 deltaFound = true;
 463             }
 464         }
 465         if (!deltaFound) {
 466             return;
 467         }
 468         Display.getDefault().asyncExec(new Runnable() {
 469             @Override
 470             public void run() {
 471                 if (removed.isEmpty() && added.isEmpty()) {
 472                     fEventsTable.getTable().refresh();
 473                 } else {
 474                     if (!removed.isEmpty()) {
 475                         fEventsTable.removeBookmark(Iterables.toArray(removed, IMarker.class));
 476                     }
 477                     if (!added.isEmpty()) {
 478                         fEventsTable.addBookmark(Iterables.toArray(added, IMarker.class));
 479                     }
 480                 }
 481             }
 482         });
 483     }
 484
 485     // ------------------------------------------------------------------------
 486     // ISelectionProvider
 487     // ------------------------------------------------------------------------
 488
 489     @Override
 490     public void addSelectionChangedListener(ISelectionChangedListener listener) {
 491         fSelectionChangedListeners.add(listener);
 492     }
 493
 494     @Override
 495     public ISelection getSelection() {
 496         if (fEventsTable == null) {
 497             return StructuredSelection.EMPTY;
 498         }
 499         return fEventsTable.getSelection();
 500     }
 501
 502     @Override
 503     public void removeSelectionChangedListener(ISelectionChangedListener listener) {
 504         fSelectionChangedListeners.remove(listener);
 505     }
 506
 507     @Override
 508     public void setSelection(ISelection selection) {
 509         // not implemented
 510     }
 511
 512     /**
 513      * Notifies any selection changed listeners that the viewer's selection has changed.
 514      * Only listeners registered at the time this method is called are notified.
 515      *
 516      * @param event a selection changed event
 517      *
 518      * @see ISelectionChangedListener#selectionChanged
 519      */
 520     protected void fireSelectionChanged(final SelectionChangedEvent event) {
 521         Object[] listeners = fSelectionChangedListeners.getListeners();
 522         for (int i = 0; i < listeners.length; ++i) {
 523             final ISelectionChangedListener l = (ISelectionChangedListener) listeners[i];
 524             SafeRunnable.run(new SafeRunnable() {
 525                 @Override
 526                 public void run() {
 527                     l.selectionChanged(event);
 528                 }
 529             });
 530         }
 531     }
 532
 533     // ------------------------------------------------------------------------
 534     // ISelectionChangedListener
 535     // ------------------------------------------------------------------------
 536
 537     @Override
 538     public void selectionChanged(SelectionChangedEvent event) {
 539         fireSelectionChanged(event);
 540     }
 541
 542     // ------------------------------------------------------------------------
 543     // IPartListener
 544     // ------------------------------------------------------------------------
 545
 546     @Override
 547     public void partActivated(IWorkbenchPart part) {
 548         if (part == this && !fTraceSelected) {
 549             fTraceSelected = true;
 550             if (fTrace == null) {
 551                 return;
 552             }
 553             broadcast(new TmfTraceSelectedSignal(this, fTrace));
 554         }
 555     }
 556
 557     @Override
 558     public void partBroughtToTop(IWorkbenchPart part) {
 559         if (part == this && !fTraceSelected) {
 560             fTraceSelected = true;
 561             if (fTrace == null) {
 562                 return;
 563             }
 564             broadcast(new TmfTraceSelectedSignal(this, fTrace));
 565         }
 566     }
 567
 568     @Override
 569     public void partClosed(IWorkbenchPart part) {
 570     }
 571
 572     @Override
 573     public void partDeactivated(IWorkbenchPart part) {
 574     }
 575
 576     @Override
 577     public void partOpened(IWorkbenchPart part) {
 578     }
 579
 580     // ------------------------------------------------------------------------
 581     // Global commands
 582     // ------------------------------------------------------------------------
 583
 584     /**
 585      * Add a bookmark
 586      */
 587     public void addBookmark() {
 588         fEventsTable.addBookmark(fFile);
 589     }
 590
 591
 592     // ------------------------------------------------------------------------
 593     // Signal handlers
 594     // ------------------------------------------------------------------------
 595
 596     /**
 597      * Handler for the Trace Selected signal
 598      *
 599      * @param signal The incoming signal
 600      */
 601     @TmfSignalHandler
 602     public void traceSelected(final TmfTraceSelectedSignal signal) {
 603         if ((signal.getSource() != this)) {
 604             if (signal.getTrace().equals(fTrace)) {
 605                 getSite().getPage().bringToTop(this);
 606             } else {
 607                 fTraceSelected = false;
 608             }
 609         }
 610     }
 611
 612     /**
 613      * Update the display to use the updated timestamp format
 614      *
 615      * @param signal the incoming signal
 616      */
 617     @TmfSignalHandler
 618     public void timestampFormatUpdated(TmfTimestampFormatUpdateSignal signal) {
 619         if (fEventsTable != null) {
 620             fEventsTable.refresh();
 621         }
 622     }
 623
 624 }