| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2010, 2016 Ericsson |
| 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 | ******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.tracecompass.tmf.ui.widgets.rawviewer; |
| 14 | |
| 15 | import java.util.ArrayList; |
| 16 | import java.util.List; |
| 17 | |
| 18 | import org.eclipse.jdt.annotation.NonNull; |
| 19 | import org.eclipse.jface.resource.ColorRegistry; |
| 20 | import org.eclipse.jface.resource.FontRegistry; |
| 21 | import org.eclipse.jface.util.IPropertyChangeListener; |
| 22 | import org.eclipse.jface.util.PropertyChangeEvent; |
| 23 | import org.eclipse.swt.SWT; |
| 24 | import org.eclipse.swt.custom.CaretEvent; |
| 25 | import org.eclipse.swt.custom.CaretListener; |
| 26 | import org.eclipse.swt.custom.ScrolledComposite; |
| 27 | import org.eclipse.swt.custom.StyledText; |
| 28 | import org.eclipse.swt.events.ControlEvent; |
| 29 | import org.eclipse.swt.events.ControlListener; |
| 30 | import org.eclipse.swt.events.KeyEvent; |
| 31 | import org.eclipse.swt.events.KeyListener; |
| 32 | import org.eclipse.swt.events.MouseAdapter; |
| 33 | import org.eclipse.swt.events.MouseEvent; |
| 34 | import org.eclipse.swt.events.MouseListener; |
| 35 | import org.eclipse.swt.events.MouseMoveListener; |
| 36 | import org.eclipse.swt.events.MouseTrackListener; |
| 37 | import org.eclipse.swt.events.MouseWheelListener; |
| 38 | import org.eclipse.swt.events.SelectionEvent; |
| 39 | import org.eclipse.swt.events.SelectionListener; |
| 40 | import org.eclipse.swt.graphics.Color; |
| 41 | import org.eclipse.swt.graphics.Font; |
| 42 | import org.eclipse.swt.graphics.Point; |
| 43 | import org.eclipse.swt.layout.GridData; |
| 44 | import org.eclipse.swt.layout.GridLayout; |
| 45 | import org.eclipse.swt.widgets.Composite; |
| 46 | import org.eclipse.swt.widgets.Control; |
| 47 | import org.eclipse.swt.widgets.Display; |
| 48 | import org.eclipse.swt.widgets.Event; |
| 49 | import org.eclipse.swt.widgets.Listener; |
| 50 | import org.eclipse.swt.widgets.Menu; |
| 51 | import org.eclipse.swt.widgets.Slider; |
| 52 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| 53 | import org.eclipse.tracecompass.tmf.core.trace.ITmfContext; |
| 54 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| 55 | import org.eclipse.tracecompass.tmf.core.trace.location.ITmfLocation; |
| 56 | import org.eclipse.ui.PlatformUI; |
| 57 | import org.eclipse.ui.themes.IThemeManager; |
| 58 | |
| 59 | /** |
| 60 | * TmfRawEventViewer allows for the display of the raw data for an arbitrarily |
| 61 | * large number of TMF events. |
| 62 | * |
| 63 | * It is essentially a Composite of a StyledText area and a Slider, where the number |
| 64 | * of visible lines in the StyledText control is set to fill the viewer display area. |
| 65 | * An underlying data model is used to store a cache of event raw text line data. |
| 66 | * The slider is ratio-based. |
| 67 | * |
| 68 | * @version 1.0 |
| 69 | * @author Patrick Tasse |
| 70 | */ |
| 71 | public class TmfRawEventViewer extends Composite implements ControlListener, SelectionListener, MouseListener, |
| 72 | KeyListener, CaretListener, MouseMoveListener, MouseTrackListener, MouseWheelListener, IPropertyChangeListener { |
| 73 | |
| 74 | private static final Color COLOR_BACKGROUND_ODD = Display.getCurrent().getSystemColor(SWT.COLOR_WHITE); |
| 75 | private static final Color COLOR_BACKGROUND_EVEN = new Color(Display.getDefault(), 242, 242, 242); |
| 76 | private static final String FONT_DEFINITION_ID = "org.eclipse.tracecompass.tmf.ui.font.eventraw"; //$NON-NLS-1$ |
| 77 | private static final String HIGHLIGHT_COLOR_DEFINITION_ID = "org.eclipse.tracecompass.tmf.ui.color.eventraw.highlight"; //$NON-NLS-1$ |
| 78 | private static final String SELECTION_COLOR_DEFINITION_ID = "org.eclipse.tracecompass.tmf.ui.color.eventraw.selection"; //$NON-NLS-1$ |
| 79 | private static final int MAX_LINE_DATA_SIZE = 1000; |
| 80 | private static final int SLIDER_MAX = 1000000; |
| 81 | private static final String EMPTY_STRING = ""; //$NON-NLS-1$ |
| 82 | private static final String LF = "\n"; //$NON-NLS-1$ |
| 83 | private static final @NonNull String CR_LF = "\r?\n"; //$NON-NLS-1$ |
| 84 | |
| 85 | private ITmfTrace fTrace; |
| 86 | private ITmfContext fBottomContext; |
| 87 | |
| 88 | private ScrolledComposite fScrolledComposite; |
| 89 | private Composite fTextArea; |
| 90 | private StyledText fStyledText; |
| 91 | private Font fFixedFont; |
| 92 | private Color fHighlightColor; |
| 93 | private Color fSelectionColor; |
| 94 | private Slider fSlider; |
| 95 | private SliderThrottler fSliderThrottler; |
| 96 | |
| 97 | private final List<LineData> fLines = new ArrayList<>(); |
| 98 | private boolean fActualRanks = false; |
| 99 | private int fTopLineIndex; |
| 100 | private int fLastTopLineIndex; |
| 101 | private final CaretPosition[] fStoredCaretPosition = new CaretPosition[] |
| 102 | { new CaretPosition(0, 0), new CaretPosition(0,0)}; |
| 103 | private int fNumVisibleLines; |
| 104 | private ITmfLocation fSelectedLocation = null; |
| 105 | private long fHighlightedRank = Long.MIN_VALUE; |
| 106 | private int fCursorYCoordinate = -1; |
| 107 | private int fHoldSelection = 0; |
| 108 | |
| 109 | // ------------------------------------------------------------------------ |
| 110 | // Classes |
| 111 | // ------------------------------------------------------------------------ |
| 112 | |
| 113 | private static class LineData { |
| 114 | long rank; |
| 115 | ITmfLocation location; |
| 116 | String string; |
| 117 | public LineData(long rank, ITmfLocation location, String string) { |
| 118 | this.rank = rank; |
| 119 | this.location = location; |
| 120 | if (string.length() == 0) { |
| 121 | /* workaround for setLineBackground has no effect on empty line */ |
| 122 | this.string = " "; //$NON-NLS-1$ |
| 123 | } else { |
| 124 | this.string = string; |
| 125 | } |
| 126 | } |
| 127 | @Override |
| 128 | public String toString() { |
| 129 | return rank + " [" + location + "]: " + string; //$NON-NLS-1$ //$NON-NLS-2$ |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | private static class CaretPosition { |
| 134 | int time; |
| 135 | int caretOffset; |
| 136 | public CaretPosition(int time, int caretOffset) { |
| 137 | this.time = time; |
| 138 | this.caretOffset = caretOffset; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | private class SliderThrottler extends Thread { |
| 143 | private static final long DELAY = 400L; |
| 144 | private static final long POLLING_INTERVAL = 10L; |
| 145 | |
| 146 | @Override |
| 147 | public void run() { |
| 148 | final long startTime = System.currentTimeMillis(); |
| 149 | while ((System.currentTimeMillis() - startTime) < DELAY) { |
| 150 | try { |
| 151 | Thread.sleep(POLLING_INTERVAL); |
| 152 | } catch (InterruptedException e) { |
| 153 | } |
| 154 | } |
| 155 | Display.getDefault().asyncExec(new Runnable() { |
| 156 | @Override |
| 157 | public void run() { |
| 158 | if (fSliderThrottler != SliderThrottler.this) { |
| 159 | return; |
| 160 | } |
| 161 | fSliderThrottler = null; |
| 162 | if (SliderThrottler.this.isInterrupted() || fSlider.isDisposed()) { |
| 163 | return; |
| 164 | } |
| 165 | Event event = new Event(); |
| 166 | event.widget = TmfRawEventViewer.this; |
| 167 | event.detail = SWT.NONE; |
| 168 | widgetSelected(new SelectionEvent(event)); |
| 169 | } |
| 170 | }); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | // ------------------------------------------------------------------------ |
| 175 | // Constructor |
| 176 | // ------------------------------------------------------------------------ |
| 177 | |
| 178 | /** |
| 179 | * Constructor |
| 180 | * @param parent The parent composite |
| 181 | * @param style The style bits |
| 182 | */ |
| 183 | public TmfRawEventViewer(Composite parent, int style) { |
| 184 | super(parent, style & (~SWT.H_SCROLL) & (~SWT.V_SCROLL)); |
| 185 | |
| 186 | // Set the layout |
| 187 | GridLayout gridLayout = new GridLayout(); |
| 188 | gridLayout.numColumns = 2; |
| 189 | gridLayout.horizontalSpacing = 0; |
| 190 | gridLayout.verticalSpacing = 0; |
| 191 | gridLayout.marginWidth = 0; |
| 192 | gridLayout.marginHeight = 0; |
| 193 | setLayout(gridLayout); |
| 194 | |
| 195 | // Create the controls |
| 196 | createTextArea(style & SWT.H_SCROLL); |
| 197 | createSlider(style & SWT.V_SCROLL); |
| 198 | |
| 199 | // Prevent the slider from being traversed |
| 200 | setTabList(new Control[] { fScrolledComposite }); |
| 201 | |
| 202 | addDisposeListener((e) -> { |
| 203 | if (fBottomContext != null) { |
| 204 | fBottomContext.dispose(); |
| 205 | } |
| 206 | PlatformUI.getWorkbench().getThemeManager().removePropertyChangeListener(TmfRawEventViewer.this); |
| 207 | }); |
| 208 | } |
| 209 | |
| 210 | // ------------------------------------------------------------------------ |
| 211 | // Font and color handling |
| 212 | // ------------------------------------------------------------------------ |
| 213 | |
| 214 | /** |
| 215 | * Initialize the fonts. |
| 216 | * @since 1.0 |
| 217 | */ |
| 218 | protected void initializeFonts() { |
| 219 | FontRegistry fontRegistry = PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getFontRegistry(); |
| 220 | fFixedFont = fontRegistry.get(FONT_DEFINITION_ID); |
| 221 | fStyledText.setFont(fFixedFont); |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Initialize the colors. |
| 226 | * @since 1.1 |
| 227 | */ |
| 228 | protected void initializeColors() { |
| 229 | ColorRegistry colorRegistry = PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getColorRegistry(); |
| 230 | fHighlightColor = colorRegistry.get(HIGHLIGHT_COLOR_DEFINITION_ID); |
| 231 | fSelectionColor = colorRegistry.get(SELECTION_COLOR_DEFINITION_ID); |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * @since 1.0 |
| 236 | */ |
| 237 | @Override |
| 238 | public void propertyChange(PropertyChangeEvent event) { |
| 239 | if ((IThemeManager.CHANGE_CURRENT_THEME.equals(event.getProperty())) || |
| 240 | (FONT_DEFINITION_ID.equals(event.getProperty()))) { |
| 241 | initializeFonts(); |
| 242 | refreshTextArea(); |
| 243 | } |
| 244 | if ((IThemeManager.CHANGE_CURRENT_THEME.equals(event.getProperty())) || |
| 245 | (HIGHLIGHT_COLOR_DEFINITION_ID.equals(event.getProperty())) || |
| 246 | (SELECTION_COLOR_DEFINITION_ID.equals(event.getProperty()))) { |
| 247 | initializeColors(); |
| 248 | refreshTextArea(); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | // ------------------------------------------------------------------------ |
| 253 | // Text area handling |
| 254 | // ------------------------------------------------------------------------ |
| 255 | |
| 256 | /** |
| 257 | * Create the text area and add listeners |
| 258 | */ |
| 259 | private void createTextArea(int style) { |
| 260 | fScrolledComposite = new ScrolledComposite(this, style); |
| 261 | fScrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); |
| 262 | fTextArea = new Composite(fScrolledComposite, SWT.NONE); |
| 263 | fTextArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); |
| 264 | fScrolledComposite.setContent(fTextArea); |
| 265 | fScrolledComposite.setExpandHorizontal(true); |
| 266 | fScrolledComposite.setExpandVertical(true); |
| 267 | fScrolledComposite.setAlwaysShowScrollBars(true); |
| 268 | fScrolledComposite.setMinSize(fTextArea.computeSize(SWT.DEFAULT, SWT.DEFAULT)); |
| 269 | fScrolledComposite.addControlListener(this); |
| 270 | |
| 271 | GridLayout textAreaGridLayout = new GridLayout(); |
| 272 | textAreaGridLayout.marginHeight = 0; |
| 273 | textAreaGridLayout.marginWidth = 0; |
| 274 | fTextArea.setLayout(textAreaGridLayout); |
| 275 | |
| 276 | fStyledText = new StyledText(fTextArea, SWT.READ_ONLY); |
| 277 | fStyledText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); |
| 278 | |
| 279 | initializeFonts(); |
| 280 | initializeColors(); |
| 281 | PlatformUI.getWorkbench().getThemeManager().addPropertyChangeListener(this); |
| 282 | |
| 283 | fStyledText.addCaretListener(this); |
| 284 | fStyledText.addMouseMoveListener(this); |
| 285 | fStyledText.addMouseTrackListener(this); |
| 286 | fStyledText.addMouseWheelListener(this); |
| 287 | /* disable mouse scroll of horizontal scroll bar */ |
| 288 | fStyledText.addListener(SWT.MouseWheel, new Listener() { |
| 289 | @Override |
| 290 | public void handleEvent(Event event) { |
| 291 | event.doit = false; |
| 292 | } |
| 293 | }); |
| 294 | fStyledText.addKeyListener(this); |
| 295 | |
| 296 | fTextArea.setBackground(fStyledText.getBackground()); |
| 297 | fTextArea.addMouseListener(new MouseAdapter() { |
| 298 | @Override |
| 299 | public void mouseDown(MouseEvent e) { |
| 300 | fTextArea.setFocus(); |
| 301 | } |
| 302 | }); |
| 303 | } |
| 304 | |
| 305 | // ------------------------------------------------------------------------ |
| 306 | // Slider handling |
| 307 | // ------------------------------------------------------------------------ |
| 308 | |
| 309 | private void createSlider(int style) { |
| 310 | fSlider = new Slider(this, SWT.VERTICAL); |
| 311 | fSlider.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true)); |
| 312 | fSlider.setValues(0, 0, SLIDER_MAX, SLIDER_MAX, 1, 1); |
| 313 | fSlider.addSelectionListener(this); |
| 314 | fSlider.addMouseListener(this); |
| 315 | if ((style & SWT.V_SCROLL) == 0) { |
| 316 | fSlider.setVisible(false); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | // ------------------------------------------------------------------------ |
| 321 | // Controls interactions |
| 322 | // ------------------------------------------------------------------------ |
| 323 | |
| 324 | @Override |
| 325 | public boolean setFocus() { |
| 326 | boolean isVisible = isVisible(); |
| 327 | if (isVisible) { |
| 328 | fTextArea.setFocus(); |
| 329 | } |
| 330 | return isVisible; |
| 331 | } |
| 332 | |
| 333 | @Override |
| 334 | public void setMenu(Menu menu) { |
| 335 | fStyledText.setMenu(menu); |
| 336 | } |
| 337 | |
| 338 | /** |
| 339 | * Sets the trace and updates the content |
| 340 | * @param trace The trace to set |
| 341 | */ |
| 342 | public void setTrace(ITmfTrace trace) { |
| 343 | fTrace = trace; |
| 344 | fTopLineIndex = 0; |
| 345 | fLines.clear(); |
| 346 | refreshEventCount(); |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Refreshes the event count, updates the slider thumb and loads display |
| 351 | */ |
| 352 | public void refreshEventCount() { |
| 353 | if (fTrace != null) { |
| 354 | if (fTrace.getNbEvents() > 0) { |
| 355 | fSlider.setThumb((int) Math.max(SLIDER_MAX / fTrace.getNbEvents(), 1)); |
| 356 | } else { |
| 357 | fSlider.setThumb(SLIDER_MAX); |
| 358 | } |
| 359 | |
| 360 | if (!isVisible()) { |
| 361 | return; |
| 362 | } |
| 363 | |
| 364 | if (fLines.size() == 0) { |
| 365 | setTopRank(0); |
| 366 | } else if (fLines.size() < fNumVisibleLines) { |
| 367 | if (fBottomContext != null) { |
| 368 | fBottomContext.dispose(); |
| 369 | fBottomContext = null; |
| 370 | } |
| 371 | loadLineData(); |
| 372 | fillTextArea(); |
| 373 | fSlider.setSelection((int) (SLIDER_MAX * fTrace.getLocationRatio(fLines.get(fTopLineIndex).location))); |
| 374 | } |
| 375 | } else { |
| 376 | if (fBottomContext != null) { |
| 377 | fBottomContext.dispose(); |
| 378 | fBottomContext = null; |
| 379 | } |
| 380 | fillTextArea(); |
| 381 | fSlider.setThumb(SLIDER_MAX); |
| 382 | fSlider.setSelection(0); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Selects the event of given rank and makes it visible. |
| 388 | * @param rank The rank of event |
| 389 | */ |
| 390 | public void selectAndReveal(long rank) { |
| 391 | if (fTrace == null || !isVisible()) { |
| 392 | return; |
| 393 | } |
| 394 | if (fActualRanks && fTopLineIndex < fLines.size() && rank >= fLines.get(fTopLineIndex).rank) { |
| 395 | int lastVisibleIndex = Math.min(fTopLineIndex + fNumVisibleLines, fLines.size()) - 1; |
| 396 | if (rank <= fLines.get(lastVisibleIndex).rank) { |
| 397 | for (int i = fTopLineIndex; i < fLines.size(); i++) { |
| 398 | if (fLines.get(i).rank == rank) { |
| 399 | fSelectedLocation = fLines.get(i).location; |
| 400 | break; |
| 401 | } |
| 402 | } |
| 403 | refreshLineBackgrounds(); |
| 404 | return; |
| 405 | } |
| 406 | } |
| 407 | setTopRank(rank); |
| 408 | if (fLines.size() > 0 && fHoldSelection == 0) { |
| 409 | fSelectedLocation = fLines.get(0).location; |
| 410 | refreshLineBackgrounds(); |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Add a selection listener |
| 416 | * @param listener A listener to add |
| 417 | */ |
| 418 | public void addSelectionListener(Listener listener) { |
| 419 | checkWidget(); |
| 420 | if (listener == null) { |
| 421 | SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| 422 | } |
| 423 | addListener (SWT.Selection, listener); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Remove selection listener |
| 428 | * @param listener A listener to remove |
| 429 | */ |
| 430 | public void removeSelectionListener(Listener listener) { |
| 431 | checkWidget(); |
| 432 | if (listener == null) { |
| 433 | SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| 434 | } |
| 435 | removeListener(SWT.Selection, listener); |
| 436 | } |
| 437 | |
| 438 | private void sendSelectionEvent(LineData lineData) { |
| 439 | Event event = new Event(); |
| 440 | if (fActualRanks) { |
| 441 | event.data = Long.valueOf(lineData.rank); |
| 442 | } else { |
| 443 | event.data = lineData.location; |
| 444 | } |
| 445 | notifyListeners(SWT.Selection, event); |
| 446 | } |
| 447 | |
| 448 | private void setTopRank(long rank) { |
| 449 | if (fBottomContext != null) { |
| 450 | fBottomContext.dispose(); |
| 451 | } |
| 452 | fBottomContext = fTrace.seekEvent(rank); |
| 453 | if (fBottomContext == null) { |
| 454 | return; |
| 455 | } |
| 456 | fLines.clear(); |
| 457 | fActualRanks = true; |
| 458 | fTopLineIndex = 0; |
| 459 | loadLineData(); |
| 460 | refreshTextArea(); |
| 461 | if (fLines.size() == 0) { |
| 462 | fSlider.setSelection(0); |
| 463 | } else { |
| 464 | fSlider.setSelection((int) (SLIDER_MAX * fTrace.getLocationRatio(fLines.get(fTopLineIndex).location))); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | private void setTopPosition(double ratio) { |
| 469 | if (fBottomContext != null) { |
| 470 | fBottomContext.dispose(); |
| 471 | } |
| 472 | fBottomContext = fTrace.seekEvent(ratio); |
| 473 | if (fBottomContext == null) { |
| 474 | return; |
| 475 | } |
| 476 | fBottomContext.setRank(0); |
| 477 | fLines.clear(); |
| 478 | fActualRanks = false; |
| 479 | fTopLineIndex = 0; |
| 480 | loadLineData(); |
| 481 | refreshTextArea(); |
| 482 | } |
| 483 | |
| 484 | private void loadLineData() { |
| 485 | if (fTopLineIndex < 0) { |
| 486 | if (fLines.size() > 0 && fTrace.getLocationRatio(fLines.get(0).location) > 0) { |
| 487 | double lastRatio = fTrace.getLocationRatio(fLines.get(fLines.size() - 1).location); |
| 488 | double firstRatio = fTrace.getLocationRatio(fLines.get(0).location); |
| 489 | double delta; |
| 490 | boolean singleEvent = false; |
| 491 | if (firstRatio != lastRatio) { |
| 492 | // approximate ratio of at least 20 items |
| 493 | delta = Math.max(20, fNumVisibleLines) * (lastRatio - firstRatio) / (fLines.size() - 1); |
| 494 | } else { |
| 495 | delta = Math.pow(10, -15); |
| 496 | singleEvent = true; |
| 497 | } |
| 498 | while (fTopLineIndex < 0) { |
| 499 | ITmfLocation endLocation = fLines.get(0).location; |
| 500 | firstRatio = Math.max(0, firstRatio - delta); |
| 501 | ITmfContext context = fTrace.seekEvent(firstRatio); |
| 502 | ITmfLocation location; |
| 503 | int index = 0; |
| 504 | long rank = 0; |
| 505 | while (!context.getLocation().equals(endLocation)) { |
| 506 | location = context.getLocation(); |
| 507 | ITmfEvent event = fTrace.getNext(context); |
| 508 | if (event == null) { |
| 509 | break; |
| 510 | } |
| 511 | if (event.getContent() != null && event.getContent().getValue() != null) { |
| 512 | String[] lines = event.getContent().getValue().toString().split(CR_LF); |
| 513 | for (int i = 0; i < lines.length; i++) { |
| 514 | String line = lines[i]; |
| 515 | LineData lineData = new LineData(rank, location, line); |
| 516 | fLines.add(index++, lineData); |
| 517 | fTopLineIndex++; |
| 518 | fLastTopLineIndex++; |
| 519 | } |
| 520 | } else { |
| 521 | LineData lineData = new LineData(rank, location, EMPTY_STRING); |
| 522 | fLines.add(index++, lineData); |
| 523 | fTopLineIndex++; |
| 524 | fLastTopLineIndex++; |
| 525 | } |
| 526 | rank++; |
| 527 | } |
| 528 | context.dispose(); |
| 529 | long rankOffset = fLines.get(index).rank - rank; |
| 530 | for (int i = 0; i < index; i++) { |
| 531 | fLines.get(i).rank += rankOffset; |
| 532 | } |
| 533 | if (firstRatio == 0) { |
| 534 | break; |
| 535 | } |
| 536 | if (singleEvent) { |
| 537 | delta = Math.min(delta * 10, 0.1); |
| 538 | } |
| 539 | } |
| 540 | } |
| 541 | if (fTopLineIndex < 0) { |
| 542 | fTopLineIndex = 0; |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | while (fLines.size() - fTopLineIndex < fNumVisibleLines) { |
| 547 | if (fBottomContext == null) { |
| 548 | if (fLines.size() == 0) { |
| 549 | fBottomContext = fTrace.seekEvent(0); |
| 550 | } else { |
| 551 | fBottomContext = fTrace.seekEvent(fLines.get(fLines.size() - 1).location); |
| 552 | fTrace.getNext(fBottomContext); |
| 553 | } |
| 554 | if (fBottomContext == null) { |
| 555 | break; |
| 556 | } |
| 557 | } |
| 558 | long rank = fBottomContext.getRank(); |
| 559 | ITmfLocation location = fBottomContext.getLocation() != null ? fBottomContext.getLocation() : null; |
| 560 | ITmfEvent event = fTrace.getNext(fBottomContext); |
| 561 | if (event == null) { |
| 562 | break; |
| 563 | } |
| 564 | if (event.getContent() != null && event.getContent().getValue() != null) { |
| 565 | for (String line : event.getContent().getValue().toString().split(CR_LF)) { |
| 566 | int crPos; |
| 567 | if ((crPos = line.indexOf('\r')) != -1) { |
| 568 | line = line.substring(0, crPos); |
| 569 | } |
| 570 | LineData lineData = new LineData(rank, location, line); |
| 571 | fLines.add(lineData); |
| 572 | } |
| 573 | } else { |
| 574 | LineData lineData = new LineData(rank, location, EMPTY_STRING); |
| 575 | fLines.add(lineData); |
| 576 | } |
| 577 | } |
| 578 | fTopLineIndex = Math.max(0, Math.min(fTopLineIndex, fLines.size() - 1)); |
| 579 | |
| 580 | if (fLines.size() > MAX_LINE_DATA_SIZE) { |
| 581 | if (fTopLineIndex < MAX_LINE_DATA_SIZE / 2) { |
| 582 | long rank = fLines.get(MAX_LINE_DATA_SIZE - 1).rank; |
| 583 | for (int i = MAX_LINE_DATA_SIZE; i < fLines.size(); i++) { |
| 584 | if (fLines.get(i).rank > rank) { |
| 585 | fLines.subList(i, fLines.size()).clear(); |
| 586 | if (fBottomContext != null) { |
| 587 | fBottomContext.dispose(); |
| 588 | fBottomContext = null; |
| 589 | } |
| 590 | break; |
| 591 | } |
| 592 | } |
| 593 | } else { |
| 594 | long rank = fLines.get(fLines.size() - MAX_LINE_DATA_SIZE).rank; |
| 595 | for (int i = fLines.size() - MAX_LINE_DATA_SIZE - 1; i >= 0; i--) { |
| 596 | if (fLines.get(i).rank < rank) { |
| 597 | fLines.subList(0, i + 1).clear(); |
| 598 | fTopLineIndex -= (i + 1); |
| 599 | fLastTopLineIndex -= (i + 1); |
| 600 | break; |
| 601 | } |
| 602 | } |
| 603 | } |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | private void refreshTextArea() { |
| 608 | fStyledText.setText(EMPTY_STRING); |
| 609 | for (int i = 0; i < fLines.size() - fTopLineIndex && i < fNumVisibleLines; i++) { |
| 610 | if (i > 0) |
| 611 | { |
| 612 | fStyledText.append(LF); |
| 613 | } |
| 614 | LineData lineData = fLines.get(fTopLineIndex + i); |
| 615 | fStyledText.append(lineData.string); |
| 616 | setLineBackground(i, lineData); |
| 617 | } |
| 618 | fTextArea.layout(); |
| 619 | fScrolledComposite.setMinSize(fTextArea.computeSize(SWT.DEFAULT, SWT.DEFAULT)); |
| 620 | fLastTopLineIndex = fTopLineIndex; |
| 621 | } |
| 622 | |
| 623 | private void fillTextArea() { |
| 624 | int nextLine = fStyledText.getCharCount() == 0 ? 0 : fStyledText.getLineCount(); |
| 625 | for (int i = nextLine; i < fLines.size() - fTopLineIndex && i < fNumVisibleLines; i++) { |
| 626 | if (i > 0) |
| 627 | { |
| 628 | fStyledText.append(LF); |
| 629 | } |
| 630 | LineData lineData = fLines.get(fTopLineIndex + i); |
| 631 | fStyledText.append(lineData.string); |
| 632 | setLineBackground(i, lineData); |
| 633 | } |
| 634 | int endLine = Math.min(fNumVisibleLines, fLines.size()); |
| 635 | if (endLine < fStyledText.getLineCount()) { |
| 636 | int endOffset = fStyledText.getOffsetAtLine(endLine) - 1; |
| 637 | if (endOffset > fStyledText.getCharCount()) { |
| 638 | fHoldSelection++; |
| 639 | fStyledText.replaceTextRange(endOffset, fStyledText.getCharCount() - endOffset, EMPTY_STRING); |
| 640 | fHoldSelection--; |
| 641 | } |
| 642 | } |
| 643 | fTextArea.layout(); |
| 644 | fScrolledComposite.setMinSize(fTextArea.computeSize(SWT.DEFAULT, SWT.DEFAULT)); |
| 645 | } |
| 646 | |
| 647 | private void updateTextArea() { |
| 648 | if (fTopLineIndex < fLastTopLineIndex) { |
| 649 | StringBuilder insertedText = new StringBuilder(); |
| 650 | for (int i = fTopLineIndex; i < fLastTopLineIndex; i++) { |
| 651 | insertedText.append(fLines.get(i).string).append(LF); |
| 652 | } |
| 653 | fStyledText.replaceTextRange(0, 0, insertedText.toString()); |
| 654 | for (int i = 0; i < fLastTopLineIndex - fTopLineIndex; i++) { |
| 655 | LineData lineData = fLines.get(fTopLineIndex + i); |
| 656 | setLineBackground(i, lineData); |
| 657 | } |
| 658 | fLastTopLineIndex = fTopLineIndex; |
| 659 | } else if (fTopLineIndex > fLastTopLineIndex) { |
| 660 | int length = 0; |
| 661 | for (int i = 0; i < fTopLineIndex - fLastTopLineIndex && i < fNumVisibleLines; i++) { |
| 662 | length += fLines.get(i + fLastTopLineIndex).string.length(); |
| 663 | if (i < fStyledText.getLineCount()) { |
| 664 | length += 1; |
| 665 | } |
| 666 | } |
| 667 | fStyledText.replaceTextRange(0, length, EMPTY_STRING); |
| 668 | fLastTopLineIndex = fTopLineIndex; |
| 669 | fillTextArea(); |
| 670 | } |
| 671 | int endLine = Math.min(fNumVisibleLines, fLines.size()); |
| 672 | if (endLine < fStyledText.getLineCount()) { |
| 673 | int endOffset = fStyledText.getOffsetAtLine(endLine) - 1; |
| 674 | if (endOffset > fStyledText.getCharCount()) { |
| 675 | fStyledText.replaceTextRange(endOffset, fStyledText.getCharCount() - endOffset, EMPTY_STRING); |
| 676 | } |
| 677 | } |
| 678 | fTextArea.layout(); |
| 679 | fScrolledComposite.setMinSize(fTextArea.computeSize(SWT.DEFAULT, SWT.DEFAULT)); |
| 680 | } |
| 681 | |
| 682 | private void refreshLineBackgrounds() { |
| 683 | for (int i = 0; (i < fStyledText.getLineCount()) && (i < fNumVisibleLines) && (i < fLines.size() - fTopLineIndex); i++) { |
| 684 | LineData lineData = fLines.get(fTopLineIndex + i); |
| 685 | setLineBackground(i, lineData); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | private void setLineBackground(int index, LineData lineData) { |
| 690 | if (lineData.location.equals(fSelectedLocation)) { |
| 691 | fStyledText.setLineBackground(index, 1, fSelectionColor); |
| 692 | } else if (lineData.rank == fHighlightedRank) { |
| 693 | fStyledText.setLineBackground(index, 1, fHighlightColor); |
| 694 | } else if (lineData.rank % 2 == 0) { |
| 695 | fStyledText.setLineBackground(index, 1, COLOR_BACKGROUND_EVEN); |
| 696 | } else { |
| 697 | fStyledText.setLineBackground(index, 1, COLOR_BACKGROUND_ODD); |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | private void storeCaretPosition(int time, int caretOffset) { |
| 702 | if (fStoredCaretPosition[0].time == time) { |
| 703 | fStoredCaretPosition[0].caretOffset = caretOffset; |
| 704 | } else { |
| 705 | fStoredCaretPosition[1] = fStoredCaretPosition[0]; |
| 706 | fStoredCaretPosition[0] = new CaretPosition(time, caretOffset); |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | private int getPreviousCaretOffset(int time) { |
| 711 | if (fStoredCaretPosition[0].time == time) { |
| 712 | return fStoredCaretPosition[1].caretOffset; |
| 713 | } |
| 714 | return fStoredCaretPosition[0].caretOffset; |
| 715 | } |
| 716 | |
| 717 | private void updateHighlightedRank() { |
| 718 | if (fCursorYCoordinate < 0 || fCursorYCoordinate > fStyledText.getSize().y) { |
| 719 | if (fHighlightedRank != Long.MIN_VALUE) { |
| 720 | fHighlightedRank = Long.MIN_VALUE; |
| 721 | refreshLineBackgrounds(); |
| 722 | } |
| 723 | return; |
| 724 | } |
| 725 | int offset = fStyledText.getOffsetAtLocation(new Point(0, fCursorYCoordinate)); |
| 726 | int line = fStyledText.getLineAtOffset(offset); |
| 727 | if (line < fLines.size() - fTopLineIndex) { |
| 728 | LineData lineData = fLines.get(fTopLineIndex + line); |
| 729 | if (fHighlightedRank != lineData.rank) { |
| 730 | fHighlightedRank = lineData.rank; |
| 731 | refreshLineBackgrounds(); |
| 732 | } |
| 733 | } else { |
| 734 | if (fHighlightedRank != Long.MIN_VALUE) { |
| 735 | fHighlightedRank = Long.MIN_VALUE; |
| 736 | refreshLineBackgrounds(); |
| 737 | } |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | // ------------------------------------------------------------------------ |
| 742 | // ControlListener (ScrolledComposite) |
| 743 | // ------------------------------------------------------------------------ |
| 744 | |
| 745 | @Override |
| 746 | public void controlResized(ControlEvent event) { |
| 747 | int areaHeight = fScrolledComposite.getSize().y; |
| 748 | if (fScrolledComposite.getHorizontalBar() != null) { |
| 749 | areaHeight -= fScrolledComposite.getHorizontalBar().getSize().y; |
| 750 | } |
| 751 | int lineHeight = fStyledText.getLineHeight(); |
| 752 | fNumVisibleLines = Math.max((areaHeight + lineHeight - 1) / lineHeight, 1); |
| 753 | |
| 754 | if (fBottomContext != null) { |
| 755 | loadLineData(); |
| 756 | fillTextArea(); |
| 757 | } |
| 758 | } |
| 759 | |
| 760 | @Override |
| 761 | public void controlMoved(ControlEvent e) { |
| 762 | } |
| 763 | |
| 764 | // ------------------------------------------------------------------------ |
| 765 | // SelectionListener (Slider) |
| 766 | // ------------------------------------------------------------------------ |
| 767 | |
| 768 | @Override |
| 769 | public void widgetSelected(SelectionEvent e) { |
| 770 | fTextArea.setFocus(); |
| 771 | if (fLines.size() == 0) { |
| 772 | return; |
| 773 | } |
| 774 | fHoldSelection++; |
| 775 | switch (e.detail) { |
| 776 | case SWT.DRAG: |
| 777 | case SWT.NONE: { |
| 778 | if (e.widget == fSlider) { |
| 779 | /* |
| 780 | * While the slider thumb is being dragged, only perform the |
| 781 | * refresh periodically. The event detail during the drag is |
| 782 | * SWT.DRAG on Windows and SWT.NONE on Linux. |
| 783 | */ |
| 784 | if (fSliderThrottler == null) { |
| 785 | fSliderThrottler = new SliderThrottler(); |
| 786 | fSliderThrottler.start(); |
| 787 | } |
| 788 | fHoldSelection = 0; |
| 789 | return; |
| 790 | } |
| 791 | /* |
| 792 | * The selection event was sent by the viewer, refresh now. |
| 793 | */ |
| 794 | if (fSlider.getSelection() == 0 || fSlider.getThumb() == SLIDER_MAX) { |
| 795 | fLines.clear(); |
| 796 | setTopPosition(0.0); |
| 797 | break; |
| 798 | } |
| 799 | double ratio = (double) fSlider.getSelection() / (SLIDER_MAX - fSlider.getThumb()); |
| 800 | double delta = Math.pow(10, -15); |
| 801 | fLines.clear(); |
| 802 | while (fLines.size() == 0) { |
| 803 | setTopPosition(ratio); |
| 804 | if (ratio == 0.0) { |
| 805 | break; |
| 806 | } |
| 807 | delta = Math.min(delta * 10, 0.1); |
| 808 | ratio = Math.max(ratio - delta, 0.0); |
| 809 | } |
| 810 | break; |
| 811 | } |
| 812 | case SWT.ARROW_DOWN: { |
| 813 | if (fTopLineIndex >= fLines.size()) { |
| 814 | break; |
| 815 | } |
| 816 | fTopLineIndex++; |
| 817 | loadLineData(); |
| 818 | updateTextArea(); |
| 819 | break; |
| 820 | } |
| 821 | case SWT.PAGE_DOWN: { |
| 822 | fTopLineIndex += Math.max(fNumVisibleLines - 1, 1); |
| 823 | loadLineData(); |
| 824 | updateTextArea(); |
| 825 | break; |
| 826 | } |
| 827 | case SWT.ARROW_UP: { |
| 828 | if (fLines.size() == 0) { |
| 829 | break; |
| 830 | } |
| 831 | fTopLineIndex--; |
| 832 | loadLineData(); |
| 833 | updateTextArea(); |
| 834 | break; |
| 835 | } |
| 836 | case SWT.PAGE_UP: { |
| 837 | fTopLineIndex -= Math.max(fNumVisibleLines - 1, 1); |
| 838 | loadLineData(); |
| 839 | updateTextArea(); |
| 840 | break; |
| 841 | } |
| 842 | case SWT.HOME: { |
| 843 | setTopPosition(0.0); |
| 844 | break; |
| 845 | } |
| 846 | case SWT.END: { |
| 847 | double ratio = 1.0; |
| 848 | double delta = Math.pow(10, -15); |
| 849 | fLines.clear(); |
| 850 | while (fLines.size() == 0) { |
| 851 | setTopPosition(ratio); |
| 852 | if (ratio == 0.0) { |
| 853 | break; |
| 854 | } |
| 855 | delta = Math.min(delta * 10, 0.1); |
| 856 | ratio = Math.max(ratio - delta, 0.0); |
| 857 | } |
| 858 | break; |
| 859 | } |
| 860 | default: |
| 861 | break; |
| 862 | } |
| 863 | if (e.detail != SWT.NONE) { |
| 864 | fSlider.setSelection((int) (SLIDER_MAX * fTrace.getLocationRatio(fLines.get(fTopLineIndex).location))); |
| 865 | } |
| 866 | |
| 867 | fHoldSelection = 0; |
| 868 | } |
| 869 | |
| 870 | @Override |
| 871 | public void widgetDefaultSelected(SelectionEvent e) { |
| 872 | } |
| 873 | |
| 874 | // ------------------------------------------------------------------------ |
| 875 | // MouseListener (Slider) |
| 876 | // ------------------------------------------------------------------------ |
| 877 | |
| 878 | /** |
| 879 | * @since 1.1 |
| 880 | */ |
| 881 | @Override |
| 882 | public void mouseDown(MouseEvent e) { |
| 883 | } |
| 884 | |
| 885 | /** |
| 886 | * @since 1.1 |
| 887 | */ |
| 888 | @Override |
| 889 | public void mouseUp(MouseEvent e) { |
| 890 | if (e.button != 1) { |
| 891 | return; |
| 892 | } |
| 893 | /* |
| 894 | * When the mouse button is released, perform the refresh immediately |
| 895 | * and interrupt and discard the slider throttler. |
| 896 | */ |
| 897 | if (fSliderThrottler != null) { |
| 898 | fSliderThrottler.interrupt(); |
| 899 | fSliderThrottler = null; |
| 900 | } |
| 901 | Event event = new Event(); |
| 902 | event.widget = this; |
| 903 | event.detail = SWT.NONE; |
| 904 | widgetSelected(new SelectionEvent(event)); |
| 905 | } |
| 906 | |
| 907 | /** |
| 908 | * @since 1.1 |
| 909 | */ |
| 910 | @Override |
| 911 | public void mouseDoubleClick(MouseEvent e) { |
| 912 | } |
| 913 | |
| 914 | // ------------------------------------------------------------------------ |
| 915 | // KeyListener (StyledText) |
| 916 | // ------------------------------------------------------------------------ |
| 917 | |
| 918 | @Override |
| 919 | public void keyPressed(KeyEvent e) { |
| 920 | if (fLines.size() == 0) { |
| 921 | return; |
| 922 | } |
| 923 | int caretOffset = fStyledText.getCaretOffset(); |
| 924 | int previousCaretOffset = getPreviousCaretOffset(e.time); |
| 925 | int previousLineAtCaretPosition = fStyledText.getLineAtOffset(previousCaretOffset); |
| 926 | int previousColumnAtCaretPosition = getPreviousCaretOffset(e.time) - fStyledText.getOffsetAtLine(previousLineAtCaretPosition); |
| 927 | switch (e.keyCode) { |
| 928 | case SWT.ARROW_DOWN: { |
| 929 | if (previousLineAtCaretPosition < (fNumVisibleLines - 2)) { |
| 930 | break; |
| 931 | } |
| 932 | fHoldSelection++; |
| 933 | fTopLineIndex++; |
| 934 | loadLineData(); |
| 935 | updateTextArea(); |
| 936 | fHoldSelection--; |
| 937 | LineData lineData = fLines.get(fTopLineIndex + fStyledText.getLineAtOffset(fStyledText.getCaretOffset())); |
| 938 | if (!lineData.location.equals(fSelectedLocation)) { |
| 939 | fSelectedLocation = lineData.location; |
| 940 | refreshLineBackgrounds(); |
| 941 | sendSelectionEvent(lineData); |
| 942 | } |
| 943 | break; |
| 944 | } |
| 945 | case SWT.PAGE_DOWN: { |
| 946 | if (previousLineAtCaretPosition >= (fNumVisibleLines - 1)) { |
| 947 | fHoldSelection++; |
| 948 | if (fLines.get(fTopLineIndex + previousLineAtCaretPosition).rank % 2 == 0) { |
| 949 | fStyledText.setLineBackground(previousLineAtCaretPosition, 1, COLOR_BACKGROUND_EVEN); |
| 950 | } else { |
| 951 | fStyledText.setLineBackground(previousLineAtCaretPosition, 1, COLOR_BACKGROUND_ODD); |
| 952 | } |
| 953 | fSelectedLocation = null; |
| 954 | fTopLineIndex += Math.max(fNumVisibleLines - 1, 1); |
| 955 | loadLineData(); |
| 956 | updateTextArea(); |
| 957 | fHoldSelection--; |
| 958 | } |
| 959 | int line = Math.min(fNumVisibleLines - 1, fStyledText.getLineCount() - 1); |
| 960 | int offset = fStyledText.getOffsetAtLine(line); |
| 961 | fStyledText.setSelection(offset + Math.min(previousColumnAtCaretPosition, fLines.get(fTopLineIndex + line).string.length())); |
| 962 | break; |
| 963 | } |
| 964 | case SWT.ARROW_RIGHT: { |
| 965 | if (previousCaretOffset < fStyledText.getCharCount() || previousLineAtCaretPosition < (fNumVisibleLines - 2)) { |
| 966 | break; |
| 967 | } |
| 968 | fHoldSelection++; |
| 969 | fTopLineIndex++; |
| 970 | loadLineData(); |
| 971 | updateTextArea(); |
| 972 | fHoldSelection--; |
| 973 | fStyledText.setSelection(fStyledText.getCaretOffset() + 1); |
| 974 | break; |
| 975 | } |
| 976 | case SWT.ARROW_UP: { |
| 977 | if (previousLineAtCaretPosition > 0) { |
| 978 | break; |
| 979 | } |
| 980 | if (fLines.size() == 0) { |
| 981 | break; |
| 982 | } |
| 983 | fHoldSelection++; |
| 984 | fTopLineIndex--; |
| 985 | loadLineData(); |
| 986 | updateTextArea(); |
| 987 | fHoldSelection--; |
| 988 | LineData lineData = fLines.get(fTopLineIndex); |
| 989 | if (!lineData.location.equals(fSelectedLocation)) { |
| 990 | fSelectedLocation = lineData.location; |
| 991 | refreshLineBackgrounds(); |
| 992 | sendSelectionEvent(lineData); |
| 993 | } |
| 994 | fStyledText.setSelection(caretOffset); |
| 995 | break; |
| 996 | } |
| 997 | case SWT.PAGE_UP: { |
| 998 | if (previousLineAtCaretPosition > 0) { |
| 999 | break; |
| 1000 | } |
| 1001 | fHoldSelection++; |
| 1002 | fTopLineIndex -= Math.max(fNumVisibleLines - 1, 1); |
| 1003 | loadLineData(); |
| 1004 | updateTextArea(); |
| 1005 | fHoldSelection--; |
| 1006 | LineData lineData = fLines.get(fTopLineIndex); |
| 1007 | if (!lineData.location.equals(fSelectedLocation)) { |
| 1008 | fSelectedLocation = lineData.location; |
| 1009 | refreshLineBackgrounds(); |
| 1010 | sendSelectionEvent(lineData); |
| 1011 | } |
| 1012 | fStyledText.setSelection(caretOffset); |
| 1013 | break; |
| 1014 | } |
| 1015 | case SWT.ARROW_LEFT: { |
| 1016 | if (previousCaretOffset > 0) { |
| 1017 | break; |
| 1018 | } |
| 1019 | if (fLines.size() == 0) { |
| 1020 | break; |
| 1021 | } |
| 1022 | long topRank = fLines.get(fTopLineIndex).rank; |
| 1023 | fHoldSelection++; |
| 1024 | fTopLineIndex--; |
| 1025 | loadLineData(); |
| 1026 | updateTextArea(); |
| 1027 | fHoldSelection--; |
| 1028 | LineData lineData = fLines.get(fTopLineIndex); |
| 1029 | if (!lineData.location.equals(fSelectedLocation)) { |
| 1030 | fSelectedLocation = lineData.location; |
| 1031 | refreshLineBackgrounds(); |
| 1032 | sendSelectionEvent(lineData); |
| 1033 | } |
| 1034 | if (topRank != fLines.get(fTopLineIndex).rank) { |
| 1035 | fStyledText.setSelection(fLines.get(fTopLineIndex).string.length()); |
| 1036 | } |
| 1037 | break; |
| 1038 | } |
| 1039 | case SWT.HOME: { |
| 1040 | if ((e.stateMask & SWT.CTRL) == 0) { |
| 1041 | break; |
| 1042 | } |
| 1043 | setTopPosition(0.0); |
| 1044 | LineData lineData = fLines.get(fTopLineIndex); |
| 1045 | if (!lineData.location.equals(fSelectedLocation)) { |
| 1046 | fSelectedLocation = lineData.location; |
| 1047 | refreshLineBackgrounds(); |
| 1048 | sendSelectionEvent(lineData); |
| 1049 | } |
| 1050 | break; |
| 1051 | } |
| 1052 | case SWT.END: { |
| 1053 | if ((e.stateMask & SWT.CTRL) == 0) { |
| 1054 | break; |
| 1055 | } |
| 1056 | double ratio = 1.0; |
| 1057 | double delta = Math.pow(10, -15); |
| 1058 | fLines.clear(); |
| 1059 | while (fLines.size() == 0) { |
| 1060 | setTopPosition(ratio); |
| 1061 | if (ratio == 0.0) { |
| 1062 | break; |
| 1063 | } |
| 1064 | delta = Math.min(delta * 10, 0.1); |
| 1065 | ratio = Math.max(ratio - delta, 0.0); |
| 1066 | } |
| 1067 | LineData lineData = fLines.get(fTopLineIndex); |
| 1068 | if (!lineData.location.equals(fSelectedLocation)) { |
| 1069 | fSelectedLocation = lineData.location; |
| 1070 | refreshLineBackgrounds(); |
| 1071 | sendSelectionEvent(lineData); |
| 1072 | } |
| 1073 | break; |
| 1074 | } |
| 1075 | default: |
| 1076 | break; |
| 1077 | } |
| 1078 | updateHighlightedRank(); |
| 1079 | fSlider.setSelection((int) (SLIDER_MAX * fTrace.getLocationRatio(fLines.get(fTopLineIndex).location))); |
| 1080 | } |
| 1081 | |
| 1082 | @Override |
| 1083 | public void keyReleased(KeyEvent e) { |
| 1084 | } |
| 1085 | |
| 1086 | // ------------------------------------------------------------------------ |
| 1087 | // CaretListener (StyledText) |
| 1088 | // ------------------------------------------------------------------------ |
| 1089 | |
| 1090 | @Override |
| 1091 | public void caretMoved(CaretEvent event) { |
| 1092 | if (fHoldSelection == 0) { |
| 1093 | int line = fStyledText.getLineAtOffset(event.caretOffset); |
| 1094 | if (fTopLineIndex + line < fLines.size()) { |
| 1095 | LineData lineData = fLines.get(fTopLineIndex + line); |
| 1096 | if (!lineData.location.equals(fSelectedLocation)) { |
| 1097 | fSelectedLocation = lineData.location; |
| 1098 | refreshLineBackgrounds(); |
| 1099 | sendSelectionEvent(lineData); |
| 1100 | } |
| 1101 | } |
| 1102 | } |
| 1103 | storeCaretPosition(event.time, event.caretOffset); |
| 1104 | if (fHoldSelection == 0) { |
| 1105 | Point caret = fStyledText.getLocationAtOffset(fStyledText.getCaretOffset()); |
| 1106 | Point origin = fScrolledComposite.getOrigin(); |
| 1107 | if (origin.x > caret.x) { |
| 1108 | origin.x = caret.x; |
| 1109 | } else if (caret.x - origin.x > fScrolledComposite.getSize().x) { |
| 1110 | origin.x = caret.x - fScrolledComposite.getSize().x + 1; |
| 1111 | } |
| 1112 | fScrolledComposite.setOrigin(origin); |
| 1113 | } |
| 1114 | } |
| 1115 | |
| 1116 | // ------------------------------------------------------------------------ |
| 1117 | // MouseMoveListener (StyledText) |
| 1118 | // ------------------------------------------------------------------------ |
| 1119 | |
| 1120 | @Override |
| 1121 | public void mouseMove(MouseEvent e) { |
| 1122 | fCursorYCoordinate = e.y; |
| 1123 | if (e.y < 0 || e.y > fStyledText.getSize().y) { |
| 1124 | if (fHighlightedRank != Long.MIN_VALUE) { |
| 1125 | fHighlightedRank = Long.MIN_VALUE; |
| 1126 | refreshLineBackgrounds(); |
| 1127 | } |
| 1128 | return; |
| 1129 | } |
| 1130 | int offset = fStyledText.getOffsetAtLocation(new Point(0, e.y)); |
| 1131 | int line = fStyledText.getLineAtOffset(offset); |
| 1132 | if (line < fLines.size() - fTopLineIndex) { |
| 1133 | LineData lineData = fLines.get(fTopLineIndex + line); |
| 1134 | if (fHighlightedRank != lineData.rank) { |
| 1135 | fHighlightedRank = lineData.rank; |
| 1136 | refreshLineBackgrounds(); |
| 1137 | } |
| 1138 | } else { |
| 1139 | if (fHighlightedRank != Long.MIN_VALUE) { |
| 1140 | fHighlightedRank = Long.MIN_VALUE; |
| 1141 | refreshLineBackgrounds(); |
| 1142 | } |
| 1143 | } |
| 1144 | } |
| 1145 | |
| 1146 | // ------------------------------------------------------------------------ |
| 1147 | // MouseTrackListener (StyledText) |
| 1148 | // ------------------------------------------------------------------------ |
| 1149 | |
| 1150 | @Override |
| 1151 | public void mouseExit(MouseEvent e) { |
| 1152 | fCursorYCoordinate = -1; |
| 1153 | if (fHighlightedRank != Long.MIN_VALUE) { |
| 1154 | fHighlightedRank = Long.MIN_VALUE; |
| 1155 | refreshLineBackgrounds(); |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | @Override |
| 1160 | public void mouseEnter(MouseEvent e) { |
| 1161 | fCursorYCoordinate = e.y; |
| 1162 | } |
| 1163 | |
| 1164 | @Override |
| 1165 | public void mouseHover(MouseEvent e) { |
| 1166 | } |
| 1167 | |
| 1168 | // ------------------------------------------------------------------------ |
| 1169 | // MouseWheelListener (StyledText) |
| 1170 | // ------------------------------------------------------------------------ |
| 1171 | |
| 1172 | @Override |
| 1173 | public void mouseScrolled(MouseEvent e) { |
| 1174 | if (fLines.size() == 0 || e.count == 0) { |
| 1175 | return; |
| 1176 | } |
| 1177 | fHoldSelection++; |
| 1178 | fTopLineIndex -= e.count; |
| 1179 | loadLineData(); |
| 1180 | updateTextArea(); |
| 1181 | fHoldSelection = 0; |
| 1182 | updateHighlightedRank(); |
| 1183 | fSlider.setSelection((int) (SLIDER_MAX * fTrace.getLocationRatio(fLines.get(fTopLineIndex).location))); |
| 1184 | } |
| 1185 | |
| 1186 | } |