git.efficios.com Git - deliverable/tracecompass.git/blob

   1 /*****************************************************************************
   2  * Copyright (c) 2007, 2015 Intel Corporation, Ericsson, others
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *   Intel Corporation - Initial API and implementation
  10  *   Ruslan A. Scherbakov, Intel - Initial API and implementation
  11  *   Alexander N. Alexeev, Intel - Add monitors statistics support
  12  *   Alvaro Sanchez-Leon - Adapted for TMF
  13  *   Patrick Tasse - Refactoring
  14  *   Geneviève Bastien - Add event links between entries
  15  *****************************************************************************/
  16
  17 package org.eclipse.tracecompass.tmf.ui.widgets.timegraph;
  18
  19 import java.util.ArrayList;
  20 import java.util.Collections;
  21 import java.util.Comparator;
  22 import java.util.List;
  23
  24 import org.eclipse.jface.action.Action;
  25 import org.eclipse.jface.action.IAction;
  26 import org.eclipse.jface.dialogs.IDialogSettings;
  27 import org.eclipse.jface.resource.ImageDescriptor;
  28 import org.eclipse.jface.viewers.AbstractTreeViewer;
  29 import org.eclipse.jface.viewers.ISelectionProvider;
  30 import org.eclipse.jface.viewers.ITableLabelProvider;
  31 import org.eclipse.jface.viewers.ITreeContentProvider;
  32 import org.eclipse.jface.viewers.ViewerFilter;
  33 import org.eclipse.jface.window.Window;
  34 import org.eclipse.swt.SWT;
  35 import org.eclipse.swt.events.ControlAdapter;
  36 import org.eclipse.swt.events.ControlEvent;
  37 import org.eclipse.swt.events.DisposeEvent;
  38 import org.eclipse.swt.events.DisposeListener;
  39 import org.eclipse.swt.events.KeyAdapter;
  40 import org.eclipse.swt.events.KeyEvent;
  41 import org.eclipse.swt.events.MenuDetectListener;
  42 import org.eclipse.swt.events.MouseEvent;
  43 import org.eclipse.swt.events.MouseWheelListener;
  44 import org.eclipse.swt.events.SelectionAdapter;
  45 import org.eclipse.swt.events.SelectionEvent;
  46 import org.eclipse.swt.events.SelectionListener;
  47 import org.eclipse.swt.graphics.Color;
  48 import org.eclipse.swt.graphics.RGBA;
  49 import org.eclipse.swt.graphics.Rectangle;
  50 import org.eclipse.swt.layout.FillLayout;
  51 import org.eclipse.swt.layout.GridData;
  52 import org.eclipse.swt.layout.GridLayout;
  53 import org.eclipse.swt.widgets.Composite;
  54 import org.eclipse.swt.widgets.Control;
  55 import org.eclipse.swt.widgets.Display;
  56 import org.eclipse.swt.widgets.Event;
  57 import org.eclipse.swt.widgets.Listener;
  58 import org.eclipse.swt.widgets.Slider;
  59 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  60 import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants;
  61 import org.eclipse.tracecompass.internal.tmf.ui.Messages;
  62 import org.eclipse.tracecompass.internal.tmf.ui.dialogs.AddBookmarkDialog;
  63 import org.eclipse.tracecompass.tmf.ui.signal.TmfTimeViewAlignmentInfo;
  64 import org.eclipse.tracecompass.tmf.ui.views.ITmfTimeAligned;
  65 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.dialogs.ShowFilterDialogAction;
  66 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.dialogs.TimeGraphLegend;
  67 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ILinkEvent;
  68 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.IMarkerEvent;
  69 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeEvent;
  70 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  71 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.MarkerEvent;
  72 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.ITimeDataProvider;
  73 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeDataProviderCyclesConverter;
  74 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphColorScheme;
  75 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphControl;
  76 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphScale;
  77 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphTooltipHandler;
  78 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.Utils;
  79 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  80 import org.eclipse.ui.PlatformUI;
  81
  82 /**
  83  * Generic time graph viewer implementation
  84  *
  85  * @author Patrick Tasse, and others
  86  */
  87 public class TimeGraphViewer implements ITimeDataProvider, SelectionListener {
  88
  89     /** Constant indicating that all levels of the time graph should be expanded */
  90     public static final int ALL_LEVELS = AbstractTreeViewer.ALL_LEVELS;
  91
  92     private static final int DEFAULT_NAME_WIDTH = 200;
  93     private static final int MIN_NAME_WIDTH = 6;
  94     private static final int MAX_NAME_WIDTH = 1000;
  95     private static final int DEFAULT_HEIGHT = 22;
  96     private static final String HIDE_ARROWS_KEY = "hide.arrows"; //$NON-NLS-1$
  97     private static final long DEFAULT_FREQUENCY = 1000000000L;
  98     private static final int H_SCROLLBAR_MAX = Integer.MAX_VALUE - 1;
  99
 100     private static ImageDescriptor ADD_BOOKMARK = Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_ADD_BOOKMARK);
 101     private static ImageDescriptor NEXT_BOOKMARK = Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NEXT_BOOKMARK);
 102     private static ImageDescriptor PREVIOUS_BOOKMARK = Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_PREVIOUS_BOOKMARK);
 103     private static ImageDescriptor REMOVE_BOOKMARK = Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_REMOVE_BOOKMARK);
 104
 105     private long fMinTimeInterval;
 106     private ITimeGraphEntry fSelectedEntry;
 107     private long fBeginTime = SWT.DEFAULT; // The user-specified bounds start time
 108     private long fEndTime = SWT.DEFAULT; // The user-specified bounds end time
 109     private long fTime0 = SWT.DEFAULT; // The current window start time
 110     private long fTime1 = SWT.DEFAULT; // The current window end time
 111     private long fSelectionBegin = SWT.DEFAULT;
 112     private long fSelectionEnd = SWT.DEFAULT;
 113     private long fTime0Bound = SWT.DEFAULT; // The bounds start time
 114     private long fTime1Bound = SWT.DEFAULT; // The bounds end time
 115     private long fTime0ExtSynch = SWT.DEFAULT;
 116     private long fTime1ExtSynch = SWT.DEFAULT;
 117     private boolean fTimeRangeFixed;
 118     private int fNameWidthPref = DEFAULT_NAME_WIDTH;
 119     private int fMinNameWidth = MIN_NAME_WIDTH;
 120     private int fNameWidth;
 121     private Composite fDataViewer;
 122
 123     private TimeGraphControl fTimeGraphCtrl;
 124     private TimeGraphScale fTimeScaleCtrl;
 125     private Slider fHorizontalScrollBar;
 126     private Slider fVerticalScrollBar;
 127     private TimeGraphColorScheme fColorScheme;
 128     private Object fInputElement;
 129     private ITimeGraphContentProvider fTimeGraphContentProvider;
 130     private ITimeGraphPresentationProvider fTimeGraphProvider;
 131     private ITimeDataProvider fTimeDataProvider = this;
 132     private TimeGraphTooltipHandler fToolTipHandler;
 133
 134     private List<ITimeGraphSelectionListener> fSelectionListeners = new ArrayList<>();
 135     private List<ITimeGraphTimeListener> fTimeListeners = new ArrayList<>();
 136     private List<ITimeGraphRangeListener> fRangeListeners = new ArrayList<>();
 137     private List<ITimeGraphBookmarkListener> fBookmarkListeners = new ArrayList<>();
 138
 139     // Time format, using Epoch reference, Relative time format(default),
 140     // Number, or Cycles
 141     private TimeFormat fTimeFormat = TimeFormat.RELATIVE;
 142     // Clock frequency to use for Cycles time format
 143     private long fClockFrequency = DEFAULT_FREQUENCY;
 144     private int fBorderWidth = 0;
 145     private int fTimeScaleHeight = DEFAULT_HEIGHT;
 146
 147     private Action fResetScaleAction;
 148     private Action fShowLegendAction;
 149     private Action fNextEventAction;
 150     private Action fPrevEventAction;
 151     private Action fNextItemAction;
 152     private Action fPreviousItemAction;
 153     private Action fZoomInAction;
 154     private Action fZoomOutAction;
 155     private Action fHideArrowsAction;
 156     private Action fFollowArrowFwdAction;
 157     private Action fFollowArrowBwdAction;
 158     private ShowFilterDialogAction fShowFilterDialogAction;
 159     private Action fToggleBookmarkAction;
 160     private Action fNextBookmarkAction;
 161     private Action fPreviousBookmarkAction;
 162
 163     /** The list of bookmarks */
 164     private final List<IMarkerEvent> fBookmarks = new ArrayList<>();
 165
 166     /** The list of color resources created by this viewer */
 167     private final List<Color> fColors = new ArrayList<>();
 168
 169     private ListenerNotifier fListenerNotifier;
 170
 171     private Composite fTimeAlignedComposite;
 172
 173     private class ListenerNotifier extends Thread {
 174         private static final long DELAY = 400L;
 175         private static final long POLLING_INTERVAL = 10L;
 176         private long fLastUpdateTime = Long.MAX_VALUE;
 177         private boolean fSelectionChanged = false;
 178         private boolean fTimeRangeUpdated = false;
 179         private boolean fTimeSelected = false;
 180
 181         @Override
 182         public void run() {
 183             while ((System.currentTimeMillis() - fLastUpdateTime) < DELAY) {
 184                 try {
 185                     Thread.sleep(POLLING_INTERVAL);
 186                 } catch (Exception e) {
 187                     return;
 188                 }
 189             }
 190             Display.getDefault().asyncExec(new Runnable() {
 191                 @Override
 192                 public void run() {
 193                     if (fListenerNotifier != ListenerNotifier.this) {
 194                         return;
 195                     }
 196                     fListenerNotifier = null;
 197                     if (ListenerNotifier.this.isInterrupted() || fDataViewer.isDisposed()) {
 198                         return;
 199                     }
 200                     if (fSelectionChanged) {
 201                         fireSelectionChanged(fSelectedEntry);
 202                     }
 203                     if (fTimeRangeUpdated) {
 204                         fireTimeRangeUpdated(fTime0, fTime1);
 205                     }
 206                     if (fTimeSelected) {
 207                         fireTimeSelected(fSelectionBegin, fSelectionEnd);
 208                     }
 209                 }
 210             });
 211         }
 212
 213         public void selectionChanged() {
 214             fSelectionChanged = true;
 215             fLastUpdateTime = System.currentTimeMillis();
 216         }
 217
 218         public void timeRangeUpdated() {
 219             fTimeRangeUpdated = true;
 220             fLastUpdateTime = System.currentTimeMillis();
 221         }
 222
 223         public void timeSelected() {
 224             fTimeSelected = true;
 225             fLastUpdateTime = System.currentTimeMillis();
 226         }
 227
 228         public boolean hasSelectionChanged() {
 229             return fSelectionChanged;
 230         }
 231
 232         public boolean hasTimeRangeUpdated() {
 233             return fTimeRangeUpdated;
 234         }
 235
 236         public boolean hasTimeSelected() {
 237             return fTimeSelected;
 238         }
 239     }
 240
 241     private final static class BookmarkComparator implements Comparator<IMarkerEvent> {
 242         @Override
 243         public int compare(IMarkerEvent o1, IMarkerEvent o2) {
 244             int res = Long.compare(o1.getTime(), o2.getTime());
 245             if (res != 0) {
 246                 return res;
 247             }
 248             return Long.compare(o1.getDuration(), o2.getDuration());
 249         }
 250     }
 251
 252     /**
 253      * Standard constructor.
 254      * <p>
 255      * The default timegraph content provider accepts an ITimeGraphEntry[] as input element.
 256      *
 257      * @param parent
 258      *            The parent UI composite object
 259      * @param style
 260      *            The style to use
 261      */
 262     public TimeGraphViewer(Composite parent, int style) {
 263         createDataViewer(parent, style);
 264         fTimeGraphContentProvider = new TimeGraphContentProvider();
 265     }
 266
 267     /**
 268      * Sets the timegraph content provider used by this timegraph viewer.
 269      *
 270      * @param timeGraphContentProvider
 271      *            the timegraph content provider
 272      */
 273     public void setTimeGraphContentProvider(ITimeGraphContentProvider timeGraphContentProvider) {
 274         fTimeGraphContentProvider = timeGraphContentProvider;
 275     }
 276
 277     /**
 278      * Gets the timegraph content provider used by this timegraph viewer.
 279      *
 280      * @return the timegraph content provider
 281      */
 282     public ITimeGraphContentProvider getTimeGraphContentProvider() {
 283         return fTimeGraphContentProvider;
 284     }
 285
 286     /**
 287      * Sets the timegraph presentation provider used by this timegraph viewer.
 288      *
 289      * @param timeGraphProvider
 290      *            the timegraph provider
 291      */
 292     public void setTimeGraphProvider(ITimeGraphPresentationProvider timeGraphProvider) {
 293         fTimeGraphProvider = timeGraphProvider;
 294         fTimeGraphCtrl.setTimeGraphProvider(timeGraphProvider);
 295         fToolTipHandler = new TimeGraphTooltipHandler(fTimeGraphProvider, fTimeDataProvider);
 296         fToolTipHandler.activateHoverHelp(fTimeGraphCtrl);
 297     }
 298
 299     /**
 300      * Sets the tree columns for this time graph combo's filter dialog.
 301      *
 302      * @param columnNames the tree column names
 303      * @since 2.0
 304      */
 305     public void setFilterColumns(String[] columnNames) {
 306         getShowFilterDialogAction().getFilterDialog().setColumnNames(columnNames);
 307     }
 308
 309     /**
 310      * Sets the tree content provider used by the filter dialog
 311      *
 312      * @param contentProvider the tree content provider
 313      * @since 2.0
 314      */
 315     public void setFilterContentProvider(ITreeContentProvider contentProvider) {
 316         getShowFilterDialogAction().getFilterDialog().setContentProvider(contentProvider);
 317     }
 318
 319     /**
 320      * Sets the tree label provider used by the filter dialog
 321      *
 322      * @param labelProvider the tree label provider
 323      * @since 2.0
 324      */
 325     public void setFilterLabelProvider(ITableLabelProvider labelProvider) {
 326         getShowFilterDialogAction().getFilterDialog().setLabelProvider(labelProvider);
 327     }
 328
 329     /**
 330      * Sets or clears the input for this time graph viewer.
 331      *
 332      * @param inputElement
 333      *            The input of this time graph viewer, or <code>null</code> if
 334      *            none
 335      */
 336     public void setInput(Object inputElement) {
 337         fInputElement = inputElement;
 338         ITimeGraphEntry[] input = fTimeGraphContentProvider.getElements(inputElement);
 339         fListenerNotifier = null;
 340         if (fTimeGraphCtrl != null) {
 341             setTimeRange(input);
 342             setTopIndex(0);
 343             fSelectionBegin = SWT.DEFAULT;
 344             fSelectionEnd = SWT.DEFAULT;
 345             updateBookmarkActions();
 346             fSelectedEntry = null;
 347             refreshAllData(input);
 348         }
 349     }
 350
 351     /**
 352      * Gets the input for this time graph viewer.
 353      *
 354      * @return The input of this time graph viewer, or <code>null</code> if none
 355      */
 356     public Object getInput() {
 357         return fInputElement;
 358     }
 359
 360     /**
 361      * Sets (or clears if null) the list of links to display on this combo
 362      *
 363      * @param links
 364      *            the links to display in this time graph combo
 365      */
 366     public void setLinks(List<ILinkEvent> links) {
 367         if (fTimeGraphCtrl != null) {
 368             fTimeGraphCtrl.refreshArrows(links);
 369         }
 370     }
 371
 372     /**
 373      * Refresh the view
 374      */
 375     public void refresh() {
 376         ITimeGraphEntry[] input = fTimeGraphContentProvider.getElements(fInputElement);
 377         setTimeRange(input);
 378         refreshAllData(input);
 379     }
 380
 381     /**
 382      * Callback for when the control is moved
 383      *
 384      * @param e
 385      *            The caller event
 386      */
 387     public void controlMoved(ControlEvent e) {
 388     }
 389
 390     /**
 391      * Callback for when the control is resized
 392      *
 393      * @param e
 394      *            The caller event
 395      */
 396     public void controlResized(ControlEvent e) {
 397         resizeControls();
 398     }
 399
 400     /**
 401      * @return The string representing the view type
 402      */
 403     protected String getViewTypeStr() {
 404         return "viewoption.threads"; //$NON-NLS-1$
 405     }
 406
 407     int getMarginWidth() {
 408         return 0;
 409     }
 410
 411     int getMarginHeight() {
 412         return 0;
 413     }
 414
 415     void loadOptions() {
 416         fMinTimeInterval = 1;
 417         fSelectionBegin = SWT.DEFAULT;
 418         fSelectionEnd = SWT.DEFAULT;
 419         fNameWidth = Utils.loadIntOption(getPreferenceString("namewidth"), //$NON-NLS-1$
 420                 fNameWidthPref, fMinNameWidth, MAX_NAME_WIDTH);
 421     }
 422
 423     void saveOptions() {
 424         Utils.saveIntOption(getPreferenceString("namewidth"), fNameWidth); //$NON-NLS-1$
 425     }
 426
 427     /**
 428      * Create a data viewer.
 429      *
 430      * @param parent
 431      *            Parent composite
 432      * @param style
 433      *            Style to use
 434      * @return The new data viewer
 435      */
 436     protected Control createDataViewer(Composite parent, int style) {
 437         loadOptions();
 438         fColorScheme = new TimeGraphColorScheme();
 439         fDataViewer = new Composite(parent, style) {
 440             @Override
 441             public void redraw() {
 442                 fTimeScaleCtrl.redraw();
 443                 fTimeGraphCtrl.redraw();
 444                 super.redraw();
 445             }
 446         };
 447         fDataViewer.addDisposeListener(new DisposeListener() {
 448             @Override
 449             public void widgetDisposed(DisposeEvent e) {
 450                 for (Color color : fColors) {
 451                     color.dispose();
 452                 }
 453             }
 454         });
 455         GridLayout gl = new GridLayout(2, false);
 456         gl.marginHeight = fBorderWidth;
 457         gl.marginWidth = 0;
 458         gl.verticalSpacing = 0;
 459         gl.horizontalSpacing = 0;
 460         fDataViewer.setLayout(gl);
 461
 462         fTimeAlignedComposite = new Composite(fDataViewer, style) {
 463             @Override
 464             public void redraw() {
 465                 fDataViewer.redraw();
 466                 super.redraw();
 467             }
 468         };
 469         GridLayout gl2 = new GridLayout(1, false);
 470         gl2.marginHeight = fBorderWidth;
 471         gl2.marginWidth = 0;
 472         gl2.verticalSpacing = 0;
 473         gl2.horizontalSpacing = 0;
 474         fTimeAlignedComposite.setLayout(gl2);
 475         fTimeAlignedComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 476
 477         fTimeScaleCtrl = new TimeGraphScale(fTimeAlignedComposite, fColorScheme);
 478         fTimeScaleCtrl.setTimeProvider(fTimeDataProvider);
 479         fTimeScaleCtrl.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false));
 480         fTimeScaleCtrl.setHeight(fTimeScaleHeight);
 481         fTimeScaleCtrl.addMouseWheelListener(new MouseWheelListener() {
 482             @Override
 483             public void mouseScrolled(MouseEvent e) {
 484                 fTimeGraphCtrl.zoom(e.count > 0);
 485             }
 486         });
 487
 488         fTimeGraphCtrl = createTimeGraphControl(fTimeAlignedComposite, fColorScheme);
 489
 490         fTimeGraphCtrl.setTimeProvider(this);
 491         fTimeGraphCtrl.setTimeGraphScale(fTimeScaleCtrl);
 492         fTimeGraphCtrl.addSelectionListener(this);
 493         fTimeGraphCtrl.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 494         fTimeGraphCtrl.addMouseWheelListener(new MouseWheelListener() {
 495             @Override
 496             public void mouseScrolled(MouseEvent e) {
 497                 adjustVerticalScrollBar();
 498             }
 499         });
 500         fTimeGraphCtrl.addKeyListener(new KeyAdapter() {
 501             @Override
 502             public void keyPressed(KeyEvent e) {
 503                 if (e.character == '+') {
 504                     zoomIn();
 505                 } else if (e.character == '-') {
 506                     zoomOut();
 507                 }
 508                 adjustVerticalScrollBar();
 509             }
 510         });
 511
 512         fVerticalScrollBar = new Slider(fDataViewer, SWT.VERTICAL | SWT.NO_FOCUS);
 513         fVerticalScrollBar.setLayoutData(new GridData(SWT.DEFAULT, SWT.FILL, false, true, 1, 1));
 514         fVerticalScrollBar.addSelectionListener(new SelectionAdapter() {
 515             @Override
 516             public void widgetSelected(SelectionEvent e) {
 517                 setTopIndex(fVerticalScrollBar.getSelection());
 518             }
 519         });
 520
 521         fHorizontalScrollBar = new Slider(fDataViewer, SWT.HORIZONTAL | SWT.NO_FOCUS);
 522         fHorizontalScrollBar.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false));
 523         fHorizontalScrollBar.addListener(SWT.MouseWheel, new Listener() {
 524             @Override
 525             public void handleEvent(Event event) {
 526                 if ((event.stateMask & SWT.MODIFIER_MASK) == SWT.CTRL) {
 527                     getTimeGraphControl().zoom(event.count > 0);
 528                 } else {
 529                     getTimeGraphControl().horizontalScroll(event.count > 0);
 530                 }
 531                 // don't handle the immediately following SWT.Selection event
 532                 event.doit = false;
 533             }
 534         });
 535         fHorizontalScrollBar.addListener(SWT.Selection, new Listener() {
 536             @Override
 537             public void handleEvent(Event event) {
 538                 int start = fHorizontalScrollBar.getSelection();
 539                 long time0 = getTime0();
 540                 long time1 = getTime1();
 541                 long timeMin = getMinTime();
 542                 long timeMax = getMaxTime();
 543                 long delta = timeMax - timeMin;
 544
 545                 long range = time1 - time0;
 546                 time0 = timeMin + Math.round(delta * ((double) start / H_SCROLLBAR_MAX));
 547                 time1 = time0 + range;
 548
 549                 setStartFinishTimeNotify(time0, time1);
 550             }
 551         });
 552
 553         Composite filler = new Composite(fDataViewer, SWT.NONE);
 554         GridData gd = new GridData(SWT.DEFAULT, SWT.DEFAULT, false, false);
 555         gd.heightHint = fHorizontalScrollBar.getSize().y;
 556         filler.setLayoutData(gd);
 557         filler.setLayout(new FillLayout());
 558
 559         fTimeGraphCtrl.addControlListener(new ControlAdapter() {
 560             @Override
 561             public void controlResized(ControlEvent event) {
 562                 resizeControls();
 563             }
 564         });
 565         resizeControls();
 566         fDataViewer.update();
 567         adjustHorizontalScrollBar();
 568         adjustVerticalScrollBar();
 569         return fDataViewer;
 570     }
 571
 572     /**
 573      * Dispose the view.
 574      */
 575     public void dispose() {
 576         saveOptions();
 577         fTimeGraphCtrl.dispose();
 578         fDataViewer.dispose();
 579         fColorScheme.dispose();
 580     }
 581
 582     /**
 583      * Create a new time graph control.
 584      *
 585      * @param parent
 586      *            The parent composite
 587      * @param colors
 588      *            The color scheme
 589      * @return The new TimeGraphControl
 590      */
 591     protected TimeGraphControl createTimeGraphControl(Composite parent,
 592             TimeGraphColorScheme colors) {
 593         return new TimeGraphControl(parent, colors);
 594     }
 595
 596     /**
 597      * Resize the controls
 598      */
 599     public void resizeControls() {
 600         Rectangle r = fDataViewer.getClientArea();
 601         if (r.isEmpty()) {
 602             return;
 603         }
 604
 605         int width = r.width;
 606         if (fNameWidth > width - fMinNameWidth) {
 607             fNameWidth = width - fMinNameWidth;
 608         }
 609         if (fNameWidth < fMinNameWidth) {
 610             fNameWidth = fMinNameWidth;
 611         }
 612         adjustHorizontalScrollBar();
 613         adjustVerticalScrollBar();
 614     }
 615
 616     /**
 617      * Recalculate the time bounds based on the time graph entries,
 618      * if the user-specified bound is set to SWT.DEFAULT.
 619      *
 620      * @param entries
 621      *            The root time graph entries in the model
 622      */
 623     public void setTimeRange(ITimeGraphEntry entries[]) {
 624         fTime0Bound = (fBeginTime != SWT.DEFAULT ? fBeginTime : fEndTime);
 625         fTime1Bound = (fEndTime != SWT.DEFAULT ? fEndTime : fBeginTime);
 626         if (fBeginTime != SWT.DEFAULT && fEndTime != SWT.DEFAULT) {
 627             return;
 628         }
 629         if (entries == null || entries.length == 0) {
 630             return;
 631         }
 632         if (fTime0Bound == SWT.DEFAULT) {
 633             fTime0Bound = Long.MAX_VALUE;
 634         }
 635         if (fTime1Bound == SWT.DEFAULT) {
 636             fTime1Bound = Long.MIN_VALUE;
 637         }
 638         for (ITimeGraphEntry entry : entries) {
 639             setTimeRange(entry);
 640         }
 641     }
 642
 643     private void setTimeRange(ITimeGraphEntry entry) {
 644         if (fBeginTime == SWT.DEFAULT && entry.hasTimeEvents() && entry.getStartTime() != SWT.DEFAULT) {
 645             fTime0Bound = Math.min(entry.getStartTime(), fTime0Bound);
 646         }
 647         if (fEndTime == SWT.DEFAULT && entry.hasTimeEvents() && entry.getEndTime() != SWT.DEFAULT) {
 648             fTime1Bound = Math.max(entry.getEndTime(), fTime1Bound);
 649         }
 650         if (entry.hasChildren()) {
 651             for (ITimeGraphEntry child : entry.getChildren()) {
 652                 setTimeRange(child);
 653             }
 654         }
 655     }
 656
 657     /**
 658      * Set the time bounds to the provided values.
 659      *
 660      * @param beginTime
 661      *            The bounds begin time, or SWT.DEFAULT to use the input bounds
 662      * @param endTime
 663      *            The bounds end time, or SWT.DEFAULT to use the input bounds
 664      */
 665     public void setTimeBounds(long beginTime, long endTime) {
 666         fBeginTime = beginTime;
 667         fEndTime = endTime;
 668         fTime0Bound = (fBeginTime != SWT.DEFAULT ? fBeginTime : fEndTime);
 669         fTime1Bound = (fEndTime != SWT.DEFAULT ? fEndTime : fBeginTime);
 670         if (fTime0Bound > fTime1Bound) {
 671             // only possible if both are not default
 672             fBeginTime = endTime;
 673             fEndTime = beginTime;
 674             fTime0Bound = fBeginTime;
 675             fTime1Bound = fEndTime;
 676         }
 677         adjustHorizontalScrollBar();
 678     }
 679
 680     /**
 681      * Recalculate the current time window when bounds have changed.
 682      */
 683     public void setTimeBounds() {
 684         if (!fTimeRangeFixed) {
 685             fTime0 = fTime0Bound;
 686             fTime1 = fTime1Bound;
 687         }
 688         fTime0 = Math.max(fTime0Bound, Math.min(fTime0, fTime1Bound));
 689         fTime1 = Math.max(fTime0Bound, Math.min(fTime1, fTime1Bound));
 690         if (fTime1 - fTime0 < fMinTimeInterval) {
 691             fTime1 = Math.min(fTime1Bound, fTime0 + fMinTimeInterval);
 692         }
 693     }
 694
 695     /**
 696      * @param traces
 697      */
 698     private void refreshAllData(ITimeGraphEntry[] traces) {
 699         setTimeBounds();
 700         if (fSelectionBegin < fBeginTime) {
 701             fSelectionBegin = fBeginTime;
 702         } else if (fSelectionBegin > fEndTime) {
 703             fSelectionBegin = fEndTime;
 704         }
 705         if (fSelectionEnd < fBeginTime) {
 706             fSelectionEnd = fBeginTime;
 707         } else if (fSelectionEnd > fEndTime) {
 708             fSelectionEnd = fEndTime;
 709         }
 710         fTimeGraphCtrl.refreshData(traces);
 711         fTimeScaleCtrl.redraw();
 712         updateBookmarkActions();
 713         adjustVerticalScrollBar();
 714     }
 715
 716     /**
 717      * Callback for when this view is focused
 718      */
 719     public void setFocus() {
 720         if (null != fTimeGraphCtrl) {
 721             fTimeGraphCtrl.setFocus();
 722         }
 723     }
 724
 725     /**
 726      * Get the current focus status of this view.
 727      *
 728      * @return If the view is currently focused, or not
 729      */
 730     public boolean isInFocus() {
 731         return fTimeGraphCtrl.isInFocus();
 732     }
 733
 734     /**
 735      * Get the view's current selection
 736      *
 737      * @return The entry that is selected
 738      */
 739     public ITimeGraphEntry getSelection() {
 740         return fTimeGraphCtrl.getSelectedTrace();
 741     }
 742
 743     /**
 744      * Get the index of the current selection
 745      *
 746      * @return The index
 747      */
 748     public int getSelectionIndex() {
 749         return fTimeGraphCtrl.getSelectedIndex();
 750     }
 751
 752     @Override
 753     public long getTime0() {
 754         return fTime0;
 755     }
 756
 757     @Override
 758     public long getTime1() {
 759         return fTime1;
 760     }
 761
 762     @Override
 763     public long getMinTimeInterval() {
 764         return fMinTimeInterval;
 765     }
 766
 767     @Override
 768     public int getNameSpace() {
 769         return fNameWidth;
 770     }
 771
 772     @Override
 773     public void setNameSpace(int width) {
 774         fNameWidth = width;
 775         int w = fTimeGraphCtrl.getClientArea().width;
 776         if (fNameWidth > w - MIN_NAME_WIDTH) {
 777             fNameWidth = w - MIN_NAME_WIDTH;
 778         }
 779         if (fNameWidth < MIN_NAME_WIDTH) {
 780             fNameWidth = MIN_NAME_WIDTH;
 781         }
 782         fTimeGraphCtrl.redraw();
 783         fTimeScaleCtrl.redraw();
 784     }
 785
 786     @Override
 787     public int getTimeSpace() {
 788         int w = fTimeGraphCtrl.getClientArea().width;
 789         return w - fNameWidth;
 790     }
 791
 792     @Override
 793     public long getBeginTime() {
 794         return fBeginTime;
 795     }
 796
 797     @Override
 798     public long getEndTime() {
 799         return fEndTime;
 800     }
 801
 802     @Override
 803     public long getMaxTime() {
 804         return fTime1Bound;
 805     }
 806
 807     @Override
 808     public long getMinTime() {
 809         return fTime0Bound;
 810     }
 811
 812     @Override
 813     public long getSelectionBegin() {
 814         return fSelectionBegin;
 815     }
 816
 817     @Override
 818     public long getSelectionEnd() {
 819         return fSelectionEnd;
 820     }
 821
 822     @Override
 823     public void setStartFinishTimeNotify(long time0, long time1) {
 824         setStartFinishTimeInt(time0, time1);
 825         notifyRangeListeners();
 826     }
 827
 828     @Override
 829     public void notifyStartFinishTime() {
 830         notifyRangeListeners();
 831     }
 832
 833     @Override
 834     public void setStartFinishTime(long time0, long time1) {
 835         /* if there is a pending time range, ignore this one */
 836         if (fListenerNotifier != null && fListenerNotifier.hasTimeRangeUpdated()) {
 837             return;
 838         }
 839         setStartFinishTimeInt(time0, time1);
 840         updateExtSynchValues();
 841     }
 842
 843     private void setStartFinishTimeInt(long time0, long time1) {
 844         fTime0 = time0;
 845         if (fTime0 < fTime0Bound) {
 846             fTime0 = fTime0Bound;
 847         }
 848         if (fTime0 > fTime1Bound) {
 849             fTime0 = fTime1Bound;
 850         }
 851         fTime1 = time1;
 852         if (fTime1 < fTime0Bound) {
 853             fTime1 = fTime0Bound;
 854         }
 855         if (fTime1 > fTime1Bound) {
 856             fTime1 = fTime1Bound;
 857         }
 858         if (fTime1 - fTime0 < fMinTimeInterval) {
 859             fTime1 = Math.min(fTime1Bound, fTime0 + fMinTimeInterval);
 860         }
 861         fTimeRangeFixed = true;
 862         adjustHorizontalScrollBar();
 863         fTimeGraphCtrl.redraw();
 864         fTimeScaleCtrl.redraw();
 865     }
 866
 867     @Override
 868     public void resetStartFinishTime() {
 869         setStartFinishTimeNotify(fTime0Bound, fTime1Bound);
 870         fTimeRangeFixed = false;
 871     }
 872
 873     @Override
 874     public void setSelectedTimeNotify(long time, boolean ensureVisible) {
 875         setSelectedTimeInt(time, ensureVisible, true);
 876     }
 877
 878     @Override
 879     public void setSelectedTime(long time, boolean ensureVisible) {
 880         /* if there is a pending time selection, ignore this one */
 881         if (fListenerNotifier != null && fListenerNotifier.hasTimeSelected()) {
 882             return;
 883         }
 884         setSelectedTimeInt(time, ensureVisible, false);
 885     }
 886
 887     @Override
 888     public void setSelectionRangeNotify(long beginTime, long endTime) {
 889         long time0 = fTime0;
 890         long time1 = fTime1;
 891         long selectionBegin = fSelectionBegin;
 892         long selectionEnd = fSelectionEnd;
 893         fSelectionBegin = Math.max(fTime0Bound, Math.min(fTime1Bound, beginTime));
 894         fSelectionEnd = Math.max(fTime0Bound, Math.min(fTime1Bound, endTime));
 895         boolean changed = (selectionBegin != fSelectionBegin || selectionEnd != fSelectionEnd);
 896         ensureVisible(fSelectionEnd);
 897         fTimeGraphCtrl.redraw();
 898         fTimeScaleCtrl.redraw();
 899         updateBookmarkActions();
 900         if ((time0 != fTime0) || (time1 != fTime1)) {
 901             notifyRangeListeners();
 902         }
 903         if (changed) {
 904             notifyTimeListeners();
 905         }
 906     }
 907
 908     @Override
 909     public void setSelectionRange(long beginTime, long endTime) {
 910         /* if there is a pending time selection, ignore this one */
 911         if (fListenerNotifier != null && fListenerNotifier.hasTimeSelected()) {
 912             return;
 913         }
 914         fSelectionBegin = Math.max(fTime0Bound, Math.min(fTime1Bound, beginTime));
 915         fSelectionEnd = Math.max(fTime0Bound, Math.min(fTime1Bound, endTime));
 916         fTimeGraphCtrl.redraw();
 917         fTimeScaleCtrl.redraw();
 918         updateBookmarkActions();
 919     }
 920
 921     private void setSelectedTimeInt(long time, boolean ensureVisible, boolean doNotify) {
 922         long selection = Math.max(fTime0Bound, Math.min(fTime1Bound, time));
 923         long time0 = fTime0;
 924         long time1 = fTime1;
 925         if (ensureVisible) {
 926             ensureVisible(selection);
 927         }
 928         fTimeGraphCtrl.redraw();
 929         fTimeScaleCtrl.redraw();
 930
 931         boolean notifySelectedTime = (selection != fSelectionBegin || selection != fSelectionEnd);
 932         fSelectionBegin = selection;
 933         fSelectionEnd = selection;
 934         updateBookmarkActions();
 935
 936         if ((time0 != fTime0) || (time1 != fTime1)) {
 937             notifyRangeListeners();
 938         }
 939
 940         if (doNotify && notifySelectedTime) {
 941             notifyTimeListeners();
 942         }
 943     }
 944
 945     private void ensureVisible(long time) {
 946         long timeMid = (fTime1 - fTime0) / 2;
 947         if (time < fTime0) {
 948             long dt = fTime0 - time + timeMid;
 949             fTime0 -= dt;
 950             fTime1 -= dt;
 951         } else if (time > fTime1) {
 952             long dt = time - fTime1 + timeMid;
 953             fTime0 += dt;
 954             fTime1 += dt;
 955         }
 956         if (fTime0 < fTime0Bound) {
 957             fTime1 = Math.min(fTime1Bound, fTime1 + (fTime0Bound - fTime0));
 958             fTime0 = fTime0Bound;
 959         } else if (fTime1 > fTime1Bound) {
 960             fTime0 = Math.max(fTime0Bound, fTime0 - (fTime1 - fTime1Bound));
 961             fTime1 = fTime1Bound;
 962         }
 963         if (fTime1 - fTime0 < fMinTimeInterval) {
 964             fTime1 = Math.min(fTime1Bound, fTime0 + fMinTimeInterval);
 965         }
 966         adjustHorizontalScrollBar();
 967     }
 968
 969     @Override
 970     public void widgetDefaultSelected(SelectionEvent e) {
 971         if (fSelectedEntry != getSelection()) {
 972             fSelectedEntry = getSelection();
 973             notifySelectionListeners();
 974         }
 975     }
 976
 977     @Override
 978     public void widgetSelected(SelectionEvent e) {
 979         if (fSelectedEntry != getSelection()) {
 980             fSelectedEntry = getSelection();
 981             notifySelectionListeners();
 982         }
 983     }
 984
 985     /**
 986      * Callback for when the next event is selected
 987      *
 988      * @param extend
 989      *            true to extend selection range, false for single selection
 990      * @since 1.0
 991      */
 992     public void selectNextEvent(boolean extend) {
 993         fTimeGraphCtrl.selectNextEvent(extend);
 994         adjustVerticalScrollBar();
 995     }
 996
 997     /**
 998      * Callback for when the previous event is selected
 999      *
1000      * @param extend
1001      *            true to extend selection range, false for single selection
1002      * @since 1.0
1003      */
1004     public void selectPrevEvent(boolean extend) {
1005         fTimeGraphCtrl.selectPrevEvent(extend);
1006         adjustVerticalScrollBar();
1007     }
1008
1009     /**
1010      * Callback for when the next item is selected
1011      */
1012     public void selectNextItem() {
1013         fTimeGraphCtrl.selectNextTrace();
1014         adjustVerticalScrollBar();
1015     }
1016
1017     /**
1018      * Callback for when the previous item is selected
1019      */
1020     public void selectPrevItem() {
1021         fTimeGraphCtrl.selectPrevTrace();
1022         adjustVerticalScrollBar();
1023     }
1024
1025     /**
1026      * Callback for the show legend action
1027      */
1028     public void showLegend() {
1029         if (fDataViewer == null || fDataViewer.isDisposed()) {
1030             return;
1031         }
1032
1033         TimeGraphLegend.open(fDataViewer.getShell(), fTimeGraphProvider);
1034     }
1035
1036     /**
1037      * Callback for the Zoom In action
1038      */
1039     public void zoomIn() {
1040         fTimeGraphCtrl.zoomIn();
1041     }
1042
1043     /**
1044      * Callback for the Zoom Out action
1045      */
1046     public void zoomOut() {
1047         fTimeGraphCtrl.zoomOut();
1048     }
1049
1050     private String getPreferenceString(String string) {
1051         return getViewTypeStr() + "." + string; //$NON-NLS-1$
1052     }
1053
1054     /**
1055      * Add a selection listener
1056      *
1057      * @param listener
1058      *            The listener to add
1059      */
1060     public void addSelectionListener(ITimeGraphSelectionListener listener) {
1061         fSelectionListeners.add(listener);
1062     }
1063
1064     /**
1065      * Remove a selection listener
1066      *
1067      * @param listener
1068      *            The listener to remove
1069      */
1070     public void removeSelectionListener(ITimeGraphSelectionListener listener) {
1071         fSelectionListeners.remove(listener);
1072     }
1073
1074     private void notifySelectionListeners() {
1075         if (fListenerNotifier == null) {
1076             fListenerNotifier = new ListenerNotifier();
1077             fListenerNotifier.start();
1078         }
1079         fListenerNotifier.selectionChanged();
1080     }
1081
1082     private void fireSelectionChanged(ITimeGraphEntry selection) {
1083         TimeGraphSelectionEvent event = new TimeGraphSelectionEvent(this, selection);
1084
1085         for (ITimeGraphSelectionListener listener : fSelectionListeners) {
1086             listener.selectionChanged(event);
1087         }
1088     }
1089
1090     /**
1091      * Add a time listener
1092      *
1093      * @param listener
1094      *            The listener to add
1095      */
1096     public void addTimeListener(ITimeGraphTimeListener listener) {
1097         fTimeListeners.add(listener);
1098     }
1099
1100     /**
1101      * Remove a time listener
1102      *
1103      * @param listener
1104      *            The listener to remove
1105      */
1106     public void removeTimeListener(ITimeGraphTimeListener listener) {
1107         fTimeListeners.remove(listener);
1108     }
1109
1110     private void notifyTimeListeners() {
1111         if (fListenerNotifier == null) {
1112             fListenerNotifier = new ListenerNotifier();
1113             fListenerNotifier.start();
1114         }
1115         fListenerNotifier.timeSelected();
1116     }
1117
1118     private void fireTimeSelected(long startTime, long endTime) {
1119         TimeGraphTimeEvent event = new TimeGraphTimeEvent(this, startTime, endTime);
1120
1121         for (ITimeGraphTimeListener listener : fTimeListeners) {
1122             listener.timeSelected(event);
1123         }
1124     }
1125
1126     /**
1127      * Add a range listener
1128      *
1129      * @param listener
1130      *            The listener to add
1131      */
1132     public void addRangeListener(ITimeGraphRangeListener listener) {
1133         fRangeListeners.add(listener);
1134     }
1135
1136     /**
1137      * Remove a range listener
1138      *
1139      * @param listener
1140      *            The listener to remove
1141      */
1142     public void removeRangeListener(ITimeGraphRangeListener listener) {
1143         fRangeListeners.remove(listener);
1144     }
1145
1146     private void notifyRangeListeners() {
1147         if (fListenerNotifier == null) {
1148             fListenerNotifier = new ListenerNotifier();
1149             fListenerNotifier.start();
1150         }
1151         fListenerNotifier.timeRangeUpdated();
1152     }
1153
1154     private void fireTimeRangeUpdated(long startTime, long endTime) {
1155         // Check if the time has actually changed from last notification
1156         if (startTime != fTime0ExtSynch || endTime != fTime1ExtSynch) {
1157             // Notify Time Scale Selection Listeners
1158             TimeGraphRangeUpdateEvent event = new TimeGraphRangeUpdateEvent(this, startTime, endTime);
1159
1160             for (ITimeGraphRangeListener listener : fRangeListeners) {
1161                 listener.timeRangeUpdated(event);
1162             }
1163
1164             // update external synch values
1165             updateExtSynchValues();
1166         }
1167     }
1168
1169     /**
1170      * Add a bookmark listener
1171      *
1172      * @param listener
1173      *            The listener to add
1174      * @since 2.0
1175      */
1176     public void addBookmarkListener(ITimeGraphBookmarkListener listener) {
1177         fBookmarkListeners.add(listener);
1178     }
1179
1180     /**
1181      * Remove a bookmark listener
1182      *
1183      * @param listener
1184      *            The listener to remove
1185      * @since 2.0
1186      */
1187     public void removeBookmarkListener(ITimeGraphBookmarkListener listener) {
1188         fBookmarkListeners.remove(listener);
1189     }
1190
1191     private void fireBookmarkAdded(IMarkerEvent bookmark) {
1192         TimeGraphBookmarkEvent event = new TimeGraphBookmarkEvent(this, bookmark);
1193
1194         for (ITimeGraphBookmarkListener listener : fBookmarkListeners) {
1195             listener.bookmarkAdded(event);
1196         }
1197     }
1198
1199     private void fireBookmarkRemoved(IMarkerEvent bookmark) {
1200         TimeGraphBookmarkEvent event = new TimeGraphBookmarkEvent(this, bookmark);
1201
1202         for (ITimeGraphBookmarkListener listener : fBookmarkListeners) {
1203             listener.bookmarkRemoved(event);
1204         }
1205     }
1206
1207     /**
1208      * Set the bookmarks list.
1209      *
1210      * @param bookmarks
1211      *            The bookmarks list, or null
1212      * @since 2.0
1213      */
1214     public void setBookmarks(List<IMarkerEvent> bookmarks) {
1215         for (IMarkerEvent bookmark : fBookmarks) {
1216             checkDisposeColor(bookmark.getColor());
1217         }
1218         fBookmarks.clear();
1219         if (bookmarks != null) {
1220             fBookmarks.addAll(bookmarks);
1221             Collections.sort(fBookmarks, new BookmarkComparator());
1222         }
1223         updateBookmarkActions();
1224         getTimeGraphControl().setBookmarks(bookmarks);
1225     }
1226
1227     /**
1228      * Get the bookmarks list.
1229      *
1230      * @return The bookmarks list
1231      * @since 2.0
1232      */
1233     public List<IMarkerEvent> getBookmarks() {
1234         return Collections.unmodifiableList(fBookmarks);
1235     }
1236
1237     /**
1238      * Dispose the color resource if and only if it was created by this viewer.
1239      *
1240      * @param color
1241      *            the color
1242      */
1243     private void checkDisposeColor(Color color) {
1244         for (int i = 0; i < fColors.size(); i++) {
1245             /* check for identity, not equality */
1246             if (fColors.get(i) == color) {
1247                 color.dispose();
1248                 fColors.remove(i);
1249                 break;
1250             }
1251         }
1252     }
1253
1254     /**
1255      * Callback to set a selected event in the view
1256      *
1257      * @param event
1258      *            The event that was selected
1259      * @param source
1260      *            The source of this selection event
1261      */
1262     public void setSelectedEvent(ITimeEvent event, Object source) {
1263         if (event == null || source == this) {
1264             return;
1265         }
1266         fSelectedEntry = event.getEntry();
1267         fTimeGraphCtrl.selectItem(fSelectedEntry, false);
1268
1269         setSelectedTimeInt(event.getTime(), true, true);
1270         adjustVerticalScrollBar();
1271     }
1272
1273     /**
1274      * Set the seeked time of a trace
1275      *
1276      * @param trace
1277      *            The trace that was seeked
1278      * @param time
1279      *            The target time
1280      * @param source
1281      *            The source of this seek event
1282      */
1283     public void setSelectedTraceTime(ITimeGraphEntry trace, long time, Object source) {
1284         if (trace == null || source == this) {
1285             return;
1286         }
1287         fSelectedEntry = trace;
1288         fTimeGraphCtrl.selectItem(trace, false);
1289
1290         setSelectedTimeInt(time, true, true);
1291     }
1292
1293     /**
1294      * Callback for a trace selection
1295      *
1296      * @param trace
1297      *            The trace that was selected
1298      */
1299     public void setSelection(ITimeGraphEntry trace) {
1300         /* if there is a pending selection, ignore this one */
1301         if (fListenerNotifier != null && fListenerNotifier.hasSelectionChanged()) {
1302             return;
1303         }
1304         fSelectedEntry = trace;
1305         fTimeGraphCtrl.selectItem(trace, false);
1306         adjustVerticalScrollBar();
1307     }
1308
1309     /**
1310      * Callback for a time window selection
1311      *
1312      * @param time0
1313      *            Start time of the range
1314      * @param time1
1315      *            End time of the range
1316      * @param source
1317      *            Source of the event
1318      */
1319     public void setSelectVisTimeWindow(long time0, long time1, Object source) {
1320         if (source == this) {
1321             return;
1322         }
1323
1324         setStartFinishTimeInt(time0, time1);
1325
1326         // update notification time values since we are now in synch with the
1327         // external application
1328         updateExtSynchValues();
1329     }
1330
1331     /**
1332      * update the cache values used to identify the need to send a time window
1333      * update to external registered listeners
1334      */
1335     private void updateExtSynchValues() {
1336         // last time notification cache
1337         fTime0ExtSynch = fTime0;
1338         fTime1ExtSynch = fTime1;
1339     }
1340
1341     @Override
1342     public TimeFormat getTimeFormat() {
1343         return fTimeFormat;
1344     }
1345
1346     /**
1347      * @param tf
1348      *            the {@link TimeFormat} used to display timestamps
1349      */
1350     public void setTimeFormat(TimeFormat tf) {
1351         this.fTimeFormat = tf;
1352         if (tf == TimeFormat.CYCLES) {
1353             fTimeDataProvider = new TimeDataProviderCyclesConverter(this, fClockFrequency);
1354         } else {
1355             fTimeDataProvider = this;
1356         }
1357         fTimeScaleCtrl.setTimeProvider(fTimeDataProvider);
1358         if (fToolTipHandler != null) {
1359             fToolTipHandler.setTimeProvider(fTimeDataProvider);
1360         }
1361     }
1362
1363     /**
1364      * Sets the clock frequency. Used when the time format is set to CYCLES.
1365      *
1366      * @param clockFrequency
1367      *            the clock frequency in Hz
1368      */
1369     public void setClockFrequency(long clockFrequency) {
1370         fClockFrequency = clockFrequency;
1371         if (fTimeFormat == TimeFormat.CYCLES) {
1372             fTimeDataProvider = new TimeDataProviderCyclesConverter(this, fClockFrequency);
1373             fTimeScaleCtrl.setTimeProvider(fTimeDataProvider);
1374             if (fToolTipHandler != null) {
1375                 fToolTipHandler.setTimeProvider(fTimeDataProvider);
1376             }
1377         }
1378     }
1379
1380     /**
1381      * Retrieve the border width
1382      *
1383      * @return The width
1384      */
1385     public int getBorderWidth() {
1386         return fBorderWidth;
1387     }
1388
1389     /**
1390      * Set the border width
1391      *
1392      * @param borderWidth
1393      *            The width
1394      */
1395     public void setBorderWidth(int borderWidth) {
1396         if (borderWidth > -1) {
1397             this.fBorderWidth = borderWidth;
1398             GridLayout gl = (GridLayout) fDataViewer.getLayout();
1399             gl.marginHeight = borderWidth;
1400         }
1401     }
1402
1403     /**
1404      * Retrieve the height of the header
1405      *
1406      * @return The height
1407      */
1408     public int getHeaderHeight() {
1409         return fTimeScaleHeight;
1410     }
1411
1412     /**
1413      * Set the height of the header
1414      *
1415      * @param headerHeight
1416      *            The height to set
1417      */
1418     public void setHeaderHeight(int headerHeight) {
1419         if (headerHeight > -1) {
1420             this.fTimeScaleHeight = headerHeight;
1421             fTimeScaleCtrl.setHeight(headerHeight);
1422         }
1423     }
1424
1425     /**
1426      * Retrieve the height of an item row
1427      *
1428      * @return The height
1429      */
1430     public int getItemHeight() {
1431         if (fTimeGraphCtrl != null) {
1432             return fTimeGraphCtrl.getItemHeight();
1433         }
1434         return 0;
1435     }
1436
1437     /**
1438      * Set the height of an item row
1439      *
1440      * @param rowHeight
1441      *            The height to set
1442      */
1443     public void setItemHeight(int rowHeight) {
1444         if (fTimeGraphCtrl != null) {
1445             fTimeGraphCtrl.setItemHeight(rowHeight);
1446         }
1447     }
1448
1449     /**
1450      * Set the minimum item width
1451      *
1452      * @param width
1453      *            The min width
1454      */
1455     public void setMinimumItemWidth(int width) {
1456         if (fTimeGraphCtrl != null) {
1457             fTimeGraphCtrl.setMinimumItemWidth(width);
1458         }
1459     }
1460
1461     /**
1462      * Set the width for the name column
1463      *
1464      * @param width
1465      *            The width
1466      */
1467     public void setNameWidthPref(int width) {
1468         fNameWidthPref = width;
1469         if (width == 0) {
1470             fMinNameWidth = 0;
1471             fNameWidth = 0;
1472         }
1473     }
1474
1475     /**
1476      * Retrieve the configure width for the name column
1477      *
1478      * @param width
1479      *            Unused?
1480      * @return The width
1481      */
1482     public int getNameWidthPref(int width) {
1483         return fNameWidthPref;
1484     }
1485
1486     /**
1487      * Returns the primary control associated with this viewer.
1488      *
1489      * @return the SWT control which displays this viewer's content
1490      */
1491     public Control getControl() {
1492         return fDataViewer;
1493     }
1494
1495     /**
1496      * Returns the time graph control associated with this viewer.
1497      *
1498      * @return the time graph control
1499      */
1500     public TimeGraphControl getTimeGraphControl() {
1501         return fTimeGraphCtrl;
1502     }
1503
1504     /**
1505      * Returns the time graph scale associated with this viewer.
1506      *
1507      * @return the time graph scale
1508      */
1509     public TimeGraphScale getTimeGraphScale() {
1510         return fTimeScaleCtrl;
1511     }
1512
1513     /**
1514      * Returns the composite containing all the controls that are time aligned,
1515      * i.e. TimeGraphScale, TimeGraphControl.
1516      *
1517      * @return the time based composite
1518      * @since 1.0
1519      */
1520     public Composite getTimeAlignedComposite() {
1521         return fTimeAlignedComposite;
1522     }
1523
1524     /**
1525      * Return the x coordinate corresponding to a time
1526      *
1527      * @param time
1528      *            the time
1529      * @return the x coordinate corresponding to the time
1530      */
1531     public int getXForTime(long time) {
1532         return fTimeGraphCtrl.getXForTime(time);
1533     }
1534
1535     /**
1536      * Return the time corresponding to an x coordinate
1537      *
1538      * @param x
1539      *            the x coordinate
1540      * @return the time corresponding to the x coordinate
1541      */
1542     public long getTimeAtX(int x) {
1543         return fTimeGraphCtrl.getTimeAtX(x);
1544     }
1545
1546     /**
1547      * Get the selection provider
1548      *
1549      * @return the selection provider
1550      */
1551     public ISelectionProvider getSelectionProvider() {
1552         return fTimeGraphCtrl;
1553     }
1554
1555     /**
1556      * Wait for the cursor
1557      *
1558      * @param waitInd
1559      *            Wait indefinitely?
1560      */
1561     public void waitCursor(boolean waitInd) {
1562         fTimeGraphCtrl.waitCursor(waitInd);
1563     }
1564
1565     /**
1566      * Get the horizontal scroll bar object
1567      *
1568      * @return The scroll bar
1569      */
1570     public Slider getHorizontalBar() {
1571         return fHorizontalScrollBar;
1572     }
1573
1574     /**
1575      * Get the vertical scroll bar object
1576      *
1577      * @return The scroll bar
1578      */
1579     public Slider getVerticalBar() {
1580         return fVerticalScrollBar;
1581     }
1582
1583     /**
1584      * Set the given index as the top one
1585      *
1586      * @param index
1587      *            The index that will go to the top
1588      */
1589     public void setTopIndex(int index) {
1590         fTimeGraphCtrl.setTopIndex(index);
1591         adjustVerticalScrollBar();
1592     }
1593
1594     /**
1595      * Retrieve the current top index
1596      *
1597      * @return The top index
1598      */
1599     public int getTopIndex() {
1600         return fTimeGraphCtrl.getTopIndex();
1601     }
1602
1603     /**
1604      * Sets the auto-expand level to be used for new entries discovered when
1605      * calling {@link #setInput(Object)} or {@link #refresh()}. The value 0
1606      * means that there is no auto-expand; 1 means that top-level entries are
1607      * expanded, but not their children; 2 means that top-level entries are
1608      * expanded, and their children, but not grand-children; and so on.
1609      * <p>
1610      * The value {@link #ALL_LEVELS} means that all subtrees should be expanded.
1611      * </p>
1612      *
1613      * @param level
1614      *            non-negative level, or <code>ALL_LEVELS</code> to expand all
1615      *            levels of the tree
1616      */
1617     public void setAutoExpandLevel(int level) {
1618         fTimeGraphCtrl.setAutoExpandLevel(level);
1619     }
1620
1621     /**
1622      * Returns the auto-expand level.
1623      *
1624      * @return non-negative level, or <code>ALL_LEVELS</code> if all levels of
1625      *         the tree are expanded automatically
1626      * @see #setAutoExpandLevel
1627      */
1628     public int getAutoExpandLevel() {
1629         return fTimeGraphCtrl.getAutoExpandLevel();
1630     }
1631
1632     /**
1633      * Get the expanded state of an entry.
1634      *
1635      * @param entry
1636      *            The entry
1637      * @return true if the entry is expanded, false if collapsed
1638      * @since 1.1
1639      */
1640     public boolean getExpandedState(ITimeGraphEntry entry) {
1641         return fTimeGraphCtrl.getExpandedState(entry);
1642     }
1643
1644     /**
1645      * Set the expanded state of an entry
1646      *
1647      * @param entry
1648      *            The entry to expand/collapse
1649      * @param expanded
1650      *            True for expanded, false for collapsed
1651      */
1652     public void setExpandedState(ITimeGraphEntry entry, boolean expanded) {
1653         fTimeGraphCtrl.setExpandedState(entry, expanded);
1654         adjustVerticalScrollBar();
1655     }
1656
1657     /**
1658      * Collapses all nodes of the viewer's tree, starting with the root.
1659      */
1660     public void collapseAll() {
1661         fTimeGraphCtrl.collapseAll();
1662         adjustVerticalScrollBar();
1663     }
1664
1665     /**
1666      * Expands all entries of the viewer's tree, starting with the root.
1667      */
1668     public void expandAll() {
1669         fTimeGraphCtrl.expandAll();
1670         adjustVerticalScrollBar();
1671     }
1672
1673     /**
1674      * Get the number of expanded (visible) time graph entries. This includes
1675      * leafs and does not include filtered-out entries.
1676      *
1677      * @return The number of expanded (visible) time graph entries
1678      */
1679     public int getExpandedElementCount() {
1680         return fTimeGraphCtrl.getExpandedElementCount();
1681     }
1682
1683     /**
1684      * Get the expanded (visible) time graph entries. This includes leafs and
1685      * does not include filtered-out entries.
1686      *
1687      * @return The array of expanded (visible) time graph entries
1688      */
1689     public ITimeGraphEntry[] getExpandedElements() {
1690         return fTimeGraphCtrl.getExpandedElements();
1691     }
1692
1693     /**
1694      * Add a tree listener
1695      *
1696      * @param listener
1697      *            The listener to add
1698      */
1699     public void addTreeListener(ITimeGraphTreeListener listener) {
1700         fTimeGraphCtrl.addTreeListener(listener);
1701     }
1702
1703     /**
1704      * Remove a tree listener
1705      *
1706      * @param listener
1707      *            The listener to remove
1708      */
1709     public void removeTreeListener(ITimeGraphTreeListener listener) {
1710         fTimeGraphCtrl.removeTreeListener(listener);
1711     }
1712
1713     /**
1714      * Get the reset scale action.
1715      *
1716      * @return The Action object
1717      */
1718     public Action getResetScaleAction() {
1719         if (fResetScaleAction == null) {
1720             // resetScale
1721             fResetScaleAction = new Action() {
1722                 @Override
1723                 public void run() {
1724                     resetStartFinishTime();
1725                 }
1726             };
1727             fResetScaleAction.setText(Messages.TmfTimeGraphViewer_ResetScaleActionNameText);
1728             fResetScaleAction.setToolTipText(Messages.TmfTimeGraphViewer_ResetScaleActionToolTipText);
1729             fResetScaleAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_HOME_MENU));
1730         }
1731         return fResetScaleAction;
1732     }
1733
1734     /**
1735      * Get the show legend action.
1736      *
1737      * @return The Action object
1738      */
1739     public Action getShowLegendAction() {
1740         if (fShowLegendAction == null) {
1741             // showLegend
1742             fShowLegendAction = new Action() {
1743                 @Override
1744                 public void run() {
1745                     showLegend();
1746                 }
1747             };
1748             fShowLegendAction.setText(Messages.TmfTimeGraphViewer_LegendActionNameText);
1749             fShowLegendAction.setToolTipText(Messages.TmfTimeGraphViewer_LegendActionToolTipText);
1750             fShowLegendAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_SHOW_LEGEND));
1751         }
1752
1753         return fShowLegendAction;
1754     }
1755
1756     /**
1757      * Get the the next event action.
1758      *
1759      * @return The action object
1760      */
1761     public Action getNextEventAction() {
1762         if (fNextEventAction == null) {
1763             fNextEventAction = new Action() {
1764                 @Override
1765                 public void runWithEvent(Event event) {
1766                     boolean extend = (event.stateMask & SWT.SHIFT) != 0;
1767                     selectNextEvent(extend);
1768                 }
1769             };
1770
1771             fNextEventAction.setText(Messages.TmfTimeGraphViewer_NextEventActionNameText);
1772             fNextEventAction.setToolTipText(Messages.TmfTimeGraphViewer_NextEventActionToolTipText);
1773             fNextEventAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NEXT_EVENT));
1774         }
1775
1776         return fNextEventAction;
1777     }
1778
1779     /**
1780      * Get the previous event action.
1781      *
1782      * @return The Action object
1783      */
1784     public Action getPreviousEventAction() {
1785         if (fPrevEventAction == null) {
1786             fPrevEventAction = new Action() {
1787                 @Override
1788                 public void runWithEvent(Event event) {
1789                     boolean extend = (event.stateMask & SWT.SHIFT) != 0;
1790                     selectPrevEvent(extend);
1791                 }
1792             };
1793
1794             fPrevEventAction.setText(Messages.TmfTimeGraphViewer_PreviousEventActionNameText);
1795             fPrevEventAction.setToolTipText(Messages.TmfTimeGraphViewer_PreviousEventActionToolTipText);
1796             fPrevEventAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_PREV_EVENT));
1797         }
1798
1799         return fPrevEventAction;
1800     }
1801
1802     /**
1803      * Get the next item action.
1804      *
1805      * @return The Action object
1806      */
1807     public Action getNextItemAction() {
1808         if (fNextItemAction == null) {
1809
1810             fNextItemAction = new Action() {
1811                 @Override
1812                 public void run() {
1813                     selectNextItem();
1814                 }
1815             };
1816             fNextItemAction.setText(Messages.TmfTimeGraphViewer_NextItemActionNameText);
1817             fNextItemAction.setToolTipText(Messages.TmfTimeGraphViewer_NextItemActionToolTipText);
1818             fNextItemAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NEXT_ITEM));
1819         }
1820         return fNextItemAction;
1821     }
1822
1823     /**
1824      * Get the previous item action.
1825      *
1826      * @return The Action object
1827      */
1828     public Action getPreviousItemAction() {
1829         if (fPreviousItemAction == null) {
1830
1831             fPreviousItemAction = new Action() {
1832                 @Override
1833                 public void run() {
1834                     selectPrevItem();
1835                 }
1836             };
1837             fPreviousItemAction.setText(Messages.TmfTimeGraphViewer_PreviousItemActionNameText);
1838             fPreviousItemAction.setToolTipText(Messages.TmfTimeGraphViewer_PreviousItemActionToolTipText);
1839             fPreviousItemAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_PREV_ITEM));
1840         }
1841         return fPreviousItemAction;
1842     }
1843
1844     /**
1845      * Get the zoom in action
1846      *
1847      * @return The Action object
1848      */
1849     public Action getZoomInAction() {
1850         if (fZoomInAction == null) {
1851             fZoomInAction = new Action() {
1852                 @Override
1853                 public void run() {
1854                     zoomIn();
1855                 }
1856             };
1857             fZoomInAction.setText(Messages.TmfTimeGraphViewer_ZoomInActionNameText);
1858             fZoomInAction.setToolTipText(Messages.TmfTimeGraphViewer_ZoomInActionToolTipText);
1859             fZoomInAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_ZOOM_IN_MENU));
1860         }
1861         return fZoomInAction;
1862     }
1863
1864     /**
1865      * Get the zoom out action
1866      *
1867      * @return The Action object
1868      */
1869     public Action getZoomOutAction() {
1870         if (fZoomOutAction == null) {
1871             fZoomOutAction = new Action() {
1872                 @Override
1873                 public void run() {
1874                     zoomOut();
1875                 }
1876             };
1877             fZoomOutAction.setText(Messages.TmfTimeGraphViewer_ZoomOutActionNameText);
1878             fZoomOutAction.setToolTipText(Messages.TmfTimeGraphViewer_ZoomOutActionToolTipText);
1879             fZoomOutAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_ZOOM_OUT_MENU));
1880         }
1881         return fZoomOutAction;
1882     }
1883
1884     /**
1885      * Get the hide arrows action
1886      *
1887      * @param dialogSettings
1888      *            The dialog settings section where the state should be stored,
1889      *            or null
1890      *
1891      * @return The Action object
1892      */
1893     public Action getHideArrowsAction(final IDialogSettings dialogSettings) {
1894         if (fHideArrowsAction == null) {
1895             fHideArrowsAction = new Action(Messages.TmfTimeGraphViewer_HideArrowsActionNameText, IAction.AS_CHECK_BOX) {
1896                 @Override
1897                 public void run() {
1898                     boolean hideArrows = fHideArrowsAction.isChecked();
1899                     fTimeGraphCtrl.hideArrows(hideArrows);
1900                     refresh();
1901                     if (dialogSettings != null) {
1902                         dialogSettings.put(HIDE_ARROWS_KEY, hideArrows);
1903                     }
1904                     if (fFollowArrowFwdAction != null) {
1905                         fFollowArrowFwdAction.setEnabled(!hideArrows);
1906                     }
1907                     if (fFollowArrowBwdAction != null) {
1908                         fFollowArrowBwdAction.setEnabled(!hideArrows);
1909                     }
1910                 }
1911             };
1912             fHideArrowsAction.setToolTipText(Messages.TmfTimeGraphViewer_HideArrowsActionToolTipText);
1913             fHideArrowsAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_HIDE_ARROWS));
1914             if (dialogSettings != null) {
1915                 boolean hideArrows = dialogSettings.getBoolean(HIDE_ARROWS_KEY);
1916                 fTimeGraphCtrl.hideArrows(hideArrows);
1917                 fHideArrowsAction.setChecked(hideArrows);
1918                 if (fFollowArrowFwdAction != null) {
1919                     fFollowArrowFwdAction.setEnabled(!hideArrows);
1920                 }
1921                 if (fFollowArrowBwdAction != null) {
1922                     fFollowArrowBwdAction.setEnabled(!hideArrows);
1923                 }
1924             }
1925         }
1926         return fHideArrowsAction;
1927     }
1928
1929     /**
1930      * Get the follow arrow forward action.
1931      *
1932      * @return The Action object
1933      */
1934     public Action getFollowArrowFwdAction() {
1935         if (fFollowArrowFwdAction == null) {
1936             fFollowArrowFwdAction = new Action() {
1937                 @Override
1938                 public void runWithEvent(Event event) {
1939                     boolean extend = (event.stateMask & SWT.SHIFT) != 0;
1940                     fTimeGraphCtrl.followArrowFwd(extend);
1941                     adjustVerticalScrollBar();
1942                 }
1943             };
1944             fFollowArrowFwdAction.setText(Messages.TmfTimeGraphViewer_FollowArrowForwardActionNameText);
1945             fFollowArrowFwdAction.setToolTipText(Messages.TmfTimeGraphViewer_FollowArrowForwardActionToolTipText);
1946             fFollowArrowFwdAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_FOLLOW_ARROW_FORWARD));
1947             if (fHideArrowsAction != null) {
1948                 fFollowArrowFwdAction.setEnabled(!fHideArrowsAction.isChecked());
1949             }
1950         }
1951         return fFollowArrowFwdAction;
1952     }
1953
1954     /**
1955      * Get the follow arrow backward action.
1956      *
1957      * @return The Action object
1958      */
1959     public Action getFollowArrowBwdAction() {
1960         if (fFollowArrowBwdAction == null) {
1961             fFollowArrowBwdAction = new Action() {
1962                 @Override
1963                 public void runWithEvent(Event event) {
1964                     boolean extend = (event.stateMask & SWT.SHIFT) != 0;
1965                     fTimeGraphCtrl.followArrowBwd(extend);
1966                     adjustVerticalScrollBar();
1967                 }
1968             };
1969             fFollowArrowBwdAction.setText(Messages.TmfTimeGraphViewer_FollowArrowBackwardActionNameText);
1970             fFollowArrowBwdAction.setToolTipText(Messages.TmfTimeGraphViewer_FollowArrowBackwardActionToolTipText);
1971             fFollowArrowBwdAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_FOLLOW_ARROW_BACKWARD));
1972             if (fHideArrowsAction != null) {
1973                 fFollowArrowBwdAction.setEnabled(!fHideArrowsAction.isChecked());
1974             }
1975         }
1976         return fFollowArrowBwdAction;
1977     }
1978
1979     /**
1980      * Get the show filter dialog action.
1981      *
1982      * @return The Action object
1983      * @since 2.0
1984      */
1985     public ShowFilterDialogAction getShowFilterDialogAction() {
1986         if (fShowFilterDialogAction == null) {
1987             fShowFilterDialogAction = new ShowFilterDialogAction(this);
1988         }
1989         return fShowFilterDialogAction;
1990     }
1991
1992     /**
1993      * Get the toggle bookmark action.
1994      *
1995      * @return The Action object
1996      * @since 2.0
1997      */
1998     public Action getToggleBookmarkAction() {
1999         if (fToggleBookmarkAction == null) {
2000             fToggleBookmarkAction = new Action() {
2001                 @Override
2002                 public void runWithEvent(Event event) {
2003                     IMarkerEvent selectedBookmark = getBookmarkAtSelection();
2004                     if (selectedBookmark == null) {
2005                         final long time = Math.min(fSelectionBegin, fSelectionEnd);
2006                         final long duration = Math.max(fSelectionBegin, fSelectionEnd) - time;
2007                         final AddBookmarkDialog dialog = new AddBookmarkDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());
2008                         if (dialog.open() == Window.OK) {
2009                             final String label = dialog.getValue();
2010                             final RGBA rgba = dialog.getColorValue();
2011                             Color color = new Color(Display.getDefault(), rgba.rgb.red, rgba.rgb.green, rgba.rgb.blue, rgba.alpha);
2012                             fColors.add(color);
2013                             IMarkerEvent bookmark = new MarkerEvent(null, time, duration, color, label, true);
2014                             fBookmarks.add(bookmark);
2015                             Collections.sort(fBookmarks, new BookmarkComparator());
2016                             getTimeGraphControl().setBookmarks(fBookmarks);
2017                             getControl().redraw();
2018                             fireBookmarkAdded(bookmark);
2019                         }
2020                     } else {
2021                         checkDisposeColor(selectedBookmark.getColor());
2022                         fBookmarks.remove(selectedBookmark);
2023                         getTimeGraphControl().setBookmarks(fBookmarks);
2024                         getControl().redraw();
2025                         fireBookmarkRemoved(selectedBookmark);
2026                     }
2027                     updateBookmarkActions();
2028                 }
2029             };
2030             fToggleBookmarkAction.setText(Messages.TmfTimeGraphViewer_BookmarkActionAddText);
2031             fToggleBookmarkAction.setToolTipText(Messages.TmfTimeGraphViewer_BookmarkActionAddText);
2032             fToggleBookmarkAction.setImageDescriptor(ADD_BOOKMARK);
2033         }
2034         return fToggleBookmarkAction;
2035     }
2036
2037     /**
2038      * Get the next bookmark action.
2039      *
2040      * @return The Action object
2041      * @since 2.0
2042      */
2043     public Action getNextBookmarkAction() {
2044         if (fNextBookmarkAction == null) {
2045             fNextBookmarkAction = new Action() {
2046                 @Override
2047                 public void runWithEvent(Event event) {
2048                     final long time = Math.min(fSelectionBegin, fSelectionEnd);
2049                     final long duration = Math.max(fSelectionBegin, fSelectionEnd) - time;
2050                     for (IMarkerEvent bookmark : fBookmarks) {
2051                         if (bookmark.getTime() > time ||
2052                                 (bookmark.getTime() == time && bookmark.getDuration() > duration)) {
2053                             setSelectionRangeNotify(bookmark.getTime(), bookmark.getTime() + bookmark.getDuration());
2054                             return;
2055                         }
2056                     }
2057                 }
2058             };
2059             fNextBookmarkAction.setText(Messages.TmfTimeGraphViewer_NextBookmarkActionText);
2060             fNextBookmarkAction.setToolTipText(Messages.TmfTimeGraphViewer_NextBookmarkActionText);
2061             fNextBookmarkAction.setImageDescriptor(NEXT_BOOKMARK);
2062         }
2063         return fNextBookmarkAction;
2064     }
2065
2066     /**
2067      * Get the previous bookmark action.
2068      *
2069      * @return The Action object
2070      * @since 2.0
2071      */
2072     public Action getPreviousBookmarkAction() {
2073         if (fPreviousBookmarkAction == null) {
2074             fPreviousBookmarkAction = new Action() {
2075                 @Override
2076                 public void runWithEvent(Event event) {
2077                     final long time = Math.min(fSelectionBegin, fSelectionEnd);
2078                     final long duration = Math.max(fSelectionBegin, fSelectionEnd) - time;
2079                     for (int i = fBookmarks.size() - 1; i >= 0; i--) {
2080                         IMarkerEvent bookmark = fBookmarks.get(i);
2081                         if (bookmark.getTime() < time ||
2082                                 (bookmark.getTime() == time && bookmark.getDuration() < duration)) {
2083                             setSelectionRangeNotify(bookmark.getTime(), bookmark.getTime() + bookmark.getDuration());
2084                             return;
2085                         }
2086                     }
2087                 }
2088             };
2089             fPreviousBookmarkAction.setText(Messages.TmfTimeGraphViewer_PreviousBookmarkActionText);
2090             fPreviousBookmarkAction.setToolTipText(Messages.TmfTimeGraphViewer_PreviousBookmarkActionText);
2091             fPreviousBookmarkAction.setImageDescriptor(PREVIOUS_BOOKMARK);
2092         }
2093         return fPreviousBookmarkAction;
2094     }
2095
2096     private IMarkerEvent getBookmarkAtSelection() {
2097         final long time = Math.min(fSelectionBegin, fSelectionEnd);
2098         final long duration = Math.max(fSelectionBegin, fSelectionEnd) - time;
2099         for (IMarkerEvent bookmark : fBookmarks) {
2100             if (bookmark.getTime() == time && bookmark.getDuration() == duration) {
2101                 return bookmark;
2102             }
2103         }
2104         return null;
2105     }
2106
2107     private void updateBookmarkActions() {
2108         if (fToggleBookmarkAction != null) {
2109             if (getBookmarkAtSelection() != null) {
2110                 fToggleBookmarkAction.setText(Messages.TmfTimeGraphViewer_BookmarkActionRemoveText);
2111                 fToggleBookmarkAction.setToolTipText(Messages.TmfTimeGraphViewer_BookmarkActionRemoveText);
2112                 fToggleBookmarkAction.setImageDescriptor(REMOVE_BOOKMARK);
2113             } else {
2114                 fToggleBookmarkAction.setText(Messages.TmfTimeGraphViewer_BookmarkActionAddText);
2115                 fToggleBookmarkAction.setToolTipText(Messages.TmfTimeGraphViewer_BookmarkActionAddText);
2116                 fToggleBookmarkAction.setImageDescriptor(ADD_BOOKMARK);
2117             }
2118         }
2119         final long time = Math.min(fSelectionBegin, fSelectionEnd);
2120         final long duration = Math.max(fSelectionBegin, fSelectionEnd) - time;
2121         if (fPreviousBookmarkAction != null) {
2122             fPreviousBookmarkAction.setEnabled(!fBookmarks.isEmpty() &&
2123                     (time > fBookmarks.get(0).getTime() || (time == fBookmarks.get(0).getTime() && duration > fBookmarks.get(0).getDuration())));
2124         }
2125         if (fNextBookmarkAction != null) {
2126             int last = fBookmarks.size() - 1;
2127             fNextBookmarkAction.setEnabled(!fBookmarks.isEmpty() &&
2128                     (time < fBookmarks.get(last).getTime() || (time == fBookmarks.get(last).getTime() && duration < fBookmarks.get(last).getDuration())));
2129         }
2130     }
2131
2132     private void adjustHorizontalScrollBar() {
2133         long time0 = getTime0();
2134         long time1 = getTime1();
2135         long timeMin = getMinTime();
2136         long timeMax = getMaxTime();
2137         long delta = timeMax - timeMin;
2138         int timePos = 0;
2139         int thumb = H_SCROLLBAR_MAX;
2140         if (delta != 0) {
2141             // Thumb size (page size)
2142             thumb = Math.max(1, (int) (H_SCROLLBAR_MAX * ((double) (time1 - time0) / delta)));
2143             // At the beginning of visible window
2144             timePos = (int) (H_SCROLLBAR_MAX * ((double) (time0 - timeMin) / delta));
2145         }
2146         fHorizontalScrollBar.setValues(timePos, 0, H_SCROLLBAR_MAX, thumb, Math.max(1, thumb / 2), Math.max(2, thumb));
2147     }
2148
2149     private void adjustVerticalScrollBar() {
2150         int topIndex = fTimeGraphCtrl.getTopIndex();
2151         int countPerPage = fTimeGraphCtrl.countPerPage();
2152         int expandedElementCount = fTimeGraphCtrl.getExpandedElementCount();
2153         if (topIndex + countPerPage > expandedElementCount) {
2154             fTimeGraphCtrl.setTopIndex(Math.max(0, expandedElementCount - countPerPage));
2155         }
2156
2157         int selection = fTimeGraphCtrl.getTopIndex();
2158         int min = 0;
2159         int max = Math.max(1, expandedElementCount - 1);
2160         int thumb = Math.min(max, Math.max(1, countPerPage - 1));
2161         int increment = 1;
2162         int pageIncrement = Math.max(1, countPerPage);
2163         fVerticalScrollBar.setValues(selection, min, max, thumb, increment, pageIncrement);
2164     }
2165
2166     /**
2167      * @param listener
2168      *            a {@link MenuDetectListener}
2169      * @see org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphControl#addTimeGraphEntryMenuListener(org.eclipse.swt.events.MenuDetectListener)
2170      */
2171     public void addTimeGraphEntryMenuListener(MenuDetectListener listener) {
2172         fTimeGraphCtrl.addTimeGraphEntryMenuListener(listener);
2173     }
2174
2175     /**
2176      * @param listener
2177      *            a {@link MenuDetectListener}
2178      * @see org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphControl#removeTimeGraphEntryMenuListener(org.eclipse.swt.events.MenuDetectListener)
2179      */
2180     public void removeTimeGraphEntryMenuListener(MenuDetectListener listener) {
2181         fTimeGraphCtrl.removeTimeGraphEntryMenuListener(listener);
2182     }
2183
2184     /**
2185      * @param listener
2186      *            a {@link MenuDetectListener}
2187      * @see org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphControl#addTimeEventMenuListener(org.eclipse.swt.events.MenuDetectListener)
2188      */
2189     public void addTimeEventMenuListener(MenuDetectListener listener) {
2190         fTimeGraphCtrl.addTimeEventMenuListener(listener);
2191     }
2192
2193     /**
2194      * @param listener
2195      *            a {@link MenuDetectListener}
2196      * @see org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphControl#removeTimeEventMenuListener(org.eclipse.swt.events.MenuDetectListener)
2197      */
2198     public void removeTimeEventMenuListener(MenuDetectListener listener) {
2199         fTimeGraphCtrl.removeTimeEventMenuListener(listener);
2200     }
2201
2202     /**
2203      * @param filter
2204      *            The filter object to be attached to the view
2205      */
2206     public void addFilter(ViewerFilter filter) {
2207         fTimeGraphCtrl.addFilter(filter);
2208         refresh();
2209     }
2210
2211     /**
2212      * @param filter
2213      *            The filter object to be attached to the view
2214      */
2215     public void removeFilter(ViewerFilter filter) {
2216         fTimeGraphCtrl.removeFilter(filter);
2217         refresh();
2218     }
2219
2220     /**
2221      * Returns this viewer's filters.
2222      *
2223      * @return an array of viewer filters
2224      * @since 2.0
2225      */
2226     public ViewerFilter[] getFilters() {
2227         return fTimeGraphCtrl.getFilters();
2228     }
2229
2230     /**
2231      * Sets the filters, replacing any previous filters, and triggers
2232      * refiltering of the elements.
2233      *
2234      * @param filters
2235      *            an array of viewer filters, or null
2236      * @since 2.0
2237      */
2238     public void setFilters(ViewerFilter[] filters) {
2239         fTimeGraphCtrl.setFilters(filters);
2240         refresh();
2241     }
2242
2243     /**
2244      * Return the time alignment information
2245      *
2246      * @return the time alignment information
2247      *
2248      * @see ITmfTimeAligned
2249      *
2250      * @since 1.0
2251      */
2252     public TmfTimeViewAlignmentInfo getTimeViewAlignmentInfo() {
2253         return fTimeGraphCtrl.getTimeViewAlignmentInfo();
2254     }
2255
2256     /**
2257      * Return the available width for the time-axis.
2258      *
2259      * @see ITmfTimeAligned
2260      *
2261      * @param requestedOffset
2262      *            the requested offset
2263      * @return the available width for the time-axis
2264      *
2265      * @since 1.0
2266      */
2267     public int getAvailableWidth(int requestedOffset) {
2268         int totalWidth = fTimeAlignedComposite.getSize().x;
2269         return Math.min(totalWidth, Math.max(0, totalWidth - requestedOffset));
2270     }
2271
2272     /**
2273      * Perform the alignment operation.
2274      *
2275      * @param offset
2276      *            the alignment offset
2277      * @param width
2278      *            the alignment width
2279      *
2280      * @see ITmfTimeAligned
2281      *
2282      * @since 1.0
2283      */
2284     public void performAlign(int offset, int width) {
2285         fTimeGraphCtrl.performAlign(offset);
2286         int alignmentWidth = width;
2287         int size = fTimeAlignedComposite.getSize().x;
2288         GridLayout layout = (GridLayout) fTimeAlignedComposite.getLayout();
2289         int marginSize = size - alignmentWidth - offset;
2290         layout.marginRight = Math.max(0, marginSize);
2291         fTimeAlignedComposite.layout();
2292     }
2293
2294 }