Mercurial > projects > dwt-addons
annotate dwtx/jface/action/StatusLine.d @ 39:644f1334b451
fix anon classes
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 08 Apr 2008 22:05:42 +0200 |
| parents | c884a1ab6db3 |
| children | da5ad8eedf5d |
| rev | line source |
|---|---|
| 26 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and 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 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 | |
| 14 module dwtx.jface.action.StatusLine; | |
| 15 | |
| 16 import dwtx.jface.action.StatusLineLayoutData; | |
| 17 | |
| 18 import dwt.DWT; | |
| 19 import dwt.custom.CLabel; | |
| 20 import dwt.events.DisposeEvent; | |
| 21 import dwt.events.DisposeListener; | |
| 22 import dwt.events.SelectionAdapter; | |
| 23 import dwt.events.SelectionEvent; | |
| 24 import dwt.graphics.Cursor; | |
| 25 import dwt.graphics.Font; | |
| 26 import dwt.graphics.Image; | |
| 27 import dwt.graphics.Point; | |
| 28 import dwt.graphics.Rectangle; | |
| 29 import dwt.layout.GridData; | |
| 30 import dwt.layout.GridLayout; | |
| 31 import dwt.widgets.Composite; | |
| 32 import dwt.widgets.Control; | |
| 33 import dwt.widgets.Display; | |
| 34 import dwt.widgets.Layout; | |
| 35 import dwt.widgets.ToolBar; | |
| 36 import dwt.widgets.ToolItem; | |
| 37 import dwtx.core.runtime.IProgressMonitor; | |
| 38 import dwtx.jface.dialogs.ProgressIndicator; | |
| 39 import dwtx.jface.resource.ImageDescriptor; | |
| 40 import dwtx.jface.resource.JFaceColors; | |
| 41 import dwtx.jface.resource.JFaceResources; | |
| 42 | |
| 43 import dwt.dwthelper.utils; | |
| 44 import dwt.dwthelper.Runnable; | |
| 45 | |
| 46 /** | |
| 47 * A StatusLine control is a DWT Composite with a horizontal layout which hosts | |
| 48 * a number of status indication controls. | |
| 49 * Typically it is situated below the content area of the window. | |
| 50 * <p> | |
| 51 * By default a StatusLine has two predefined status controls: a MessageLine and a | |
| 52 * ProgressIndicator and it provides API for easy access. | |
| 53 * </p> | |
| 54 * <p> | |
| 55 * This is an internal class, not intended to be used outside the JFace framework. | |
| 56 * </p> | |
| 57 */ | |
| 58 /* package */class StatusLine : Composite, IProgressMonitor { | |
| 59 | |
| 60 /** Horizontal gaps between items. */ | |
| 61 public static const int GAP = 3; | |
| 62 | |
| 63 /** Progress bar creation is delayed by this ms */ | |
| 64 public static const int DELAY_PROGRESS = 500; | |
| 65 | |
| 66 /** visibility state of the progressbar */ | |
| 67 protected bool fProgressIsVisible = false; | |
| 68 | |
| 69 /** visibility state of the cancle button */ | |
| 70 protected bool fCancelButtonIsVisible = false; | |
| 71 | |
| 72 /** enablement state of the cancle button */ | |
| 73 protected bool fCancelEnabled = false; | |
| 74 | |
| 75 /** name of the task */ | |
| 76 protected String fTaskName; | |
| 77 | |
| 78 /** is the task is cancled */ | |
| 79 protected bool fIsCanceled; | |
| 80 | |
| 81 /** the start time of the task */ | |
| 82 protected long fStartTime; | |
| 83 | |
| 84 private Cursor fStopButtonCursor; | |
| 85 | |
| 86 /** the message text */ | |
| 87 protected String fMessageText; | |
| 88 | |
| 89 /** the message image */ | |
| 90 protected Image fMessageImage; | |
| 91 | |
| 92 /** the error text */ | |
| 93 protected String fErrorText; | |
| 94 | |
| 95 /** the error image */ | |
| 96 protected Image fErrorImage; | |
| 97 | |
| 98 /** the message label */ | |
| 99 protected CLabel fMessageLabel; | |
| 100 | |
| 101 /** the composite parent of the progress bar */ | |
| 102 protected Composite fProgressBarComposite; | |
| 103 | |
| 104 /** the progress bar */ | |
| 105 protected ProgressIndicator fProgressBar; | |
| 106 | |
| 107 /** the toolbar */ | |
| 108 protected ToolBar fToolBar; | |
| 109 | |
| 110 /** the cancle button */ | |
| 111 protected ToolItem fCancelButton; | |
| 112 | |
| 113 /** stop image descriptor */ | |
| 114 protected static ImageDescriptor fgStopImage; | |
| 115 | |
| 116 static this() { | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
26
diff
changeset
|
117 fgStopImage = ImageDescriptor.createFromFile( |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
26
diff
changeset
|
118 import("dwtx.jface.action.images.stop.gif"));//$NON-NLS-1$ |
| 39 | 119 //DWT Note: Not used in jface, but needs Display instance, which is not yet available. |
| 120 // JFaceResources.getImageRegistry().put( | |
| 121 // "dwtx.jface.parts.StatusLine.stopImage", fgStopImage);//$NON-NLS-1$ | |
| 26 | 122 } |
| 123 | |
| 124 /** | |
| 125 * Layout the contribution item controls on the status line. | |
| 126 */ | |
| 127 public class StatusLineLayout : Layout { | |
| 128 private const StatusLineLayoutData DEFAULT_DATA; | |
| 129 | |
| 130 this(){ | |
| 131 DEFAULT_DATA = new StatusLineLayoutData(); | |
| 132 } | |
| 133 | |
| 134 public Point computeSize(Composite composite, int wHint, int hHint, | |
| 135 bool changed) { | |
| 136 | |
| 137 if (wHint !is DWT.DEFAULT && hHint !is DWT.DEFAULT) { | |
| 138 return new Point(wHint, hHint); | |
| 139 } | |
| 140 | |
| 141 Control[] children = composite.getChildren(); | |
| 142 int totalWidth = 0; | |
| 143 int maxHeight = 0; | |
| 144 int totalCnt = 0; | |
| 145 for (int i = 0; i < children.length; i++) { | |
| 146 bool useWidth = true; | |
| 147 Control w = children[i]; | |
| 148 if (w is fProgressBarComposite && !fProgressIsVisible) { | |
| 149 useWidth = false; | |
| 150 } else if (w is fToolBar && !fCancelButtonIsVisible) { | |
| 151 useWidth = false; | |
| 152 } | |
| 153 StatusLineLayoutData data = cast(StatusLineLayoutData) w | |
| 154 .getLayoutData(); | |
| 155 if (data is null) { | |
| 156 data = DEFAULT_DATA; | |
| 157 } | |
| 158 Point e = w.computeSize(data.widthHint, data.heightHint, | |
| 159 changed); | |
| 160 if (useWidth) { | |
| 161 totalWidth += e.x; | |
| 162 totalCnt++; | |
| 163 } | |
| 164 maxHeight = Math.max(maxHeight, e.y); | |
| 165 } | |
| 166 if (totalCnt > 0) { | |
| 167 totalWidth += (totalCnt - 1) * GAP; | |
| 168 } | |
| 169 if (totalWidth <= 0) { | |
| 170 totalWidth = maxHeight * 4; | |
| 171 } | |
| 172 return new Point(totalWidth, maxHeight); | |
| 173 } | |
| 174 | |
| 175 public void layout(Composite composite, bool flushCache) { | |
| 176 | |
| 177 if (composite is null) { | |
| 178 return; | |
| 179 } | |
| 180 | |
| 181 // StatusLineManager skips over the standard status line widgets | |
| 182 // in its update method. There is thus a dependency | |
| 183 // between the layout of the standard widgets and the update method. | |
| 184 | |
| 185 // Make sure cancel button and progress bar are before contributions. | |
| 186 fMessageLabel.moveAbove(null); | |
| 187 fToolBar.moveBelow(fMessageLabel); | |
| 188 fProgressBarComposite.moveBelow(fToolBar); | |
| 189 | |
| 190 Rectangle rect = composite.getClientArea(); | |
| 191 Control[] children = composite.getChildren(); | |
| 192 int count = children.length; | |
| 193 | |
| 194 int ws[] = new int[count]; | |
| 195 | |
| 196 int h = rect.height; | |
| 197 int totalWidth = -GAP; | |
| 198 for (int i = 0; i < count; i++) { | |
| 199 Control w = children[i]; | |
| 200 if (w is fProgressBarComposite && !fProgressIsVisible) { | |
| 201 continue; | |
| 202 } | |
| 203 if (w is fToolBar && !fCancelButtonIsVisible) { | |
| 204 continue; | |
| 205 } | |
| 206 StatusLineLayoutData data = cast(StatusLineLayoutData) w | |
| 207 .getLayoutData(); | |
| 208 if (data is null) { | |
| 209 data = DEFAULT_DATA; | |
| 210 } | |
| 211 int width = w.computeSize(data.widthHint, h, flushCache).x; | |
| 212 ws[i] = width; | |
| 213 totalWidth += width + GAP; | |
| 214 } | |
| 215 | |
| 216 int diff = rect.width - totalWidth; | |
| 217 ws[0] += diff; // make the first StatusLabel wider | |
| 218 | |
| 219 // Check against minimum recommended width | |
| 220 final int msgMinWidth = rect.width / 3; | |
| 221 if (ws[0] < msgMinWidth) { | |
| 222 diff = ws[0] - msgMinWidth; | |
| 223 ws[0] = msgMinWidth; | |
| 224 } else { | |
| 225 diff = 0; | |
| 226 } | |
| 227 | |
| 228 // Take space away from the contributions first. | |
| 229 for (int i = count - 1; i >= 0 && diff < 0; --i) { | |
| 230 int min = Math.min(ws[i], -diff); | |
| 231 ws[i] -= min; | |
| 232 diff += min + GAP; | |
| 233 } | |
| 234 | |
| 235 int x = rect.x; | |
| 236 int y = rect.y; | |
| 237 for (int i = 0; i < count; i++) { | |
| 238 Control w = children[i]; | |
| 239 /* | |
| 240 * Workaround for Linux Motif: | |
| 241 * Even if the progress bar and cancel button are | |
| 242 * not set to be visible ad of width 0, they still | |
| 243 * draw over the first pixel of the editor | |
| 244 * contributions. | |
| 245 * | |
| 246 * The fix here is to draw the progress bar and | |
| 247 * cancel button off screen if they are not visible. | |
| 248 */ | |
| 249 if (w is fProgressBarComposite && !fProgressIsVisible | |
| 250 || w is fToolBar && !fCancelButtonIsVisible) { | |
| 251 w.setBounds(x + rect.width, y, ws[i], h); | |
| 252 continue; | |
| 253 } | |
| 254 w.setBounds(x, y, ws[i], h); | |
| 255 if (ws[i] > 0) { | |
| 256 x += ws[i] + GAP; | |
| 257 } | |
| 258 } | |
| 259 } | |
| 260 } | |
| 261 | |
| 262 /** | |
| 263 * Create a new StatusLine as a child of the given parent. | |
| 264 * | |
| 265 * @param parent the parent for this Composite | |
| 266 * @param style the style used to create this widget | |
| 267 */ | |
| 268 public this(Composite parent, int style) { | |
| 269 super(parent, style); | |
| 270 | |
| 271 addDisposeListener(new class DisposeListener { | |
| 272 public void widgetDisposed(DisposeEvent e) { | |
| 273 handleDispose(); | |
| 274 } | |
| 275 }); | |
| 276 | |
| 277 // StatusLineManager skips over the standard status line widgets | |
| 278 // in its update method. There is thus a dependency | |
| 279 // between this code defining the creation and layout of the standard | |
| 280 // widgets and the update method. | |
| 281 | |
| 282 setLayout(new StatusLineLayout()); | |
| 283 | |
| 284 fMessageLabel = new CLabel(this, DWT.NONE);//DWT.SHADOW_IN); | |
| 285 // Color[] colors = new Color[2]; | |
| 286 // colors[0] = parent.getDisplay().getSystemColor(DWT.COLOR_WIDGET_LIGHT_SHADOW); | |
| 287 // colors[1] = fMessageLabel.getBackground(); | |
| 288 // int[] gradient = new int[] {JFaceColors.STATUS_PERCENT}; | |
| 289 // fMessageLabel.setBackground(colors, gradient); | |
| 290 | |
| 291 fProgressIsVisible = false; | |
| 292 fCancelEnabled = false; | |
| 293 | |
| 294 fToolBar = new ToolBar(this, DWT.FLAT); | |
| 295 fCancelButton = new ToolItem(fToolBar, DWT.PUSH); | |
| 296 fCancelButton.setImage(fgStopImage.createImage()); | |
| 297 fCancelButton.setToolTipText(JFaceResources | |
| 298 .getString("Cancel_Current_Operation")); //$NON-NLS-1$ | |
| 299 fCancelButton.addSelectionListener(new class SelectionAdapter { | |
| 300 public void widgetSelected(SelectionEvent e) { | |
| 301 setCanceled(true); | |
| 302 } | |
| 303 }); | |
| 304 fCancelButton.addDisposeListener(new class DisposeListener { | |
| 305 public void widgetDisposed(DisposeEvent e) { | |
| 306 Image i = fCancelButton.getImage(); | |
| 307 if ((i !is null) && (!i.isDisposed())) { | |
| 308 i.dispose(); | |
| 309 } | |
| 310 } | |
| 311 }); | |
| 312 | |
| 313 // We create a composite to create the progress bar in | |
| 314 // so that it can be centered. See bug #32331 | |
| 315 fProgressBarComposite = new Composite(this, DWT.NONE); | |
| 316 GridLayout layout = new GridLayout(); | |
| 317 layout.horizontalSpacing = 0; | |
| 318 layout.verticalSpacing = 0; | |
| 319 layout.marginHeight = 0; | |
| 320 layout.marginWidth = 0; | |
| 321 fProgressBarComposite.setLayout(layout); | |
| 322 fProgressBar = new ProgressIndicator(fProgressBarComposite); | |
| 323 fProgressBar.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | |
| 324 | GridData.GRAB_VERTICAL)); | |
| 325 | |
| 326 fStopButtonCursor = new Cursor(getDisplay(), DWT.CURSOR_ARROW); | |
| 327 } | |
| 328 | |
| 329 /** | |
| 330 * Notifies that the main task is beginning. | |
| 331 * | |
| 332 * @param name the name (or description) of the main task | |
| 333 * @param totalWork the total number of work units into which | |
| 334 * the main task is been subdivided. If the value is 0 or UNKNOWN the | |
| 335 * implemenation is free to indicate progress in a way which doesn't | |
| 336 * require the total number of work units in advance. In general users | |
| 337 * should use the UNKNOWN value if they don't know the total amount of | |
| 338 * work units. | |
| 339 */ | |
| 340 public void beginTask(String name, int totalWork) { | |
| 341 long timestamp = System.currentTimeMillis(); | |
| 342 fStartTime = timestamp; | |
| 343 bool animated = (totalWork is UNKNOWN || totalWork is 0); | |
| 344 // make sure the progress bar is made visible while | |
| 345 // the task is running. Fixes bug 32198 for the non-animated case. | |
| 39 | 346 Runnable timer = new class(animated,timestamp) Runnable { |
| 26 | 347 bool animated_; |
| 348 long timestamp_; | |
| 39 | 349 this(bool a,long b){ |
| 350 animated_=a; | |
| 351 timestamp_=b; | |
| 26 | 352 } |
| 353 public void run() { | |
| 354 this.outer.startTask(timestamp_, animated_); | |
| 355 } | |
| 356 }; | |
| 357 if (fProgressBar is null) { | |
| 358 return; | |
| 359 } | |
| 360 | |
| 361 fProgressBar.getDisplay().timerExec(DELAY_PROGRESS, timer); | |
| 362 if (!animated) { | |
| 363 fProgressBar.beginTask(totalWork); | |
| 364 } | |
| 365 if (name is null) { | |
| 366 fTaskName = "";//$NON-NLS-1$ | |
| 367 } else { | |
| 368 fTaskName = name; | |
| 369 } | |
| 370 setMessage(fTaskName); | |
| 371 } | |
| 372 | |
| 373 /** | |
| 374 * Notifies that the work is done; that is, either the main task is completed or the | |
| 375 * user cancelled it. | |
| 376 * Done() can be called more than once; an implementation should be prepared to handle | |
| 377 * this case. | |
| 378 */ | |
| 379 public void done() { | |
| 380 | |
| 381 fStartTime = 0; | |
| 382 | |
| 383 if (fProgressBar !is null) { | |
| 384 fProgressBar.sendRemainingWork(); | |
| 385 fProgressBar.done(); | |
| 386 } | |
| 387 setMessage(null); | |
| 388 | |
| 389 hideProgress(); | |
| 390 } | |
| 391 | |
| 392 /** | |
| 393 * Returns the status line's progress monitor | |
| 394 * @return {@link IProgressMonitor} the progress monitor | |
| 395 */ | |
| 396 public IProgressMonitor getProgressMonitor() { | |
| 397 return this; | |
| 398 } | |
| 399 | |
| 400 /** | |
| 401 * @private | |
| 402 */ | |
| 403 protected void handleDispose() { | |
| 404 if (fStopButtonCursor !is null) { | |
| 405 fStopButtonCursor.dispose(); | |
| 406 fStopButtonCursor = null; | |
| 407 } | |
| 408 if (fProgressBar !is null) { | |
| 409 fProgressBar.dispose(); | |
| 410 fProgressBar = null; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 /** | |
| 415 * Hides the Cancel button and ProgressIndicator. | |
| 416 * @private | |
| 417 */ | |
| 418 protected void hideProgress() { | |
| 419 | |
| 420 if (fProgressIsVisible && !isDisposed()) { | |
| 421 fProgressIsVisible = false; | |
| 422 fCancelEnabled = false; | |
| 423 fCancelButtonIsVisible = false; | |
| 424 if (fToolBar !is null && !fToolBar.isDisposed()) { | |
| 425 fToolBar.setVisible(false); | |
| 426 } | |
| 427 if (fProgressBarComposite !is null | |
| 428 && !fProgressBarComposite.isDisposed()) { | |
| 429 fProgressBarComposite.setVisible(false); | |
| 430 } | |
| 431 layout(); | |
| 432 } | |
| 433 } | |
| 434 | |
| 435 /** | |
| 436 * @see IProgressMonitor#internalWorked(double) | |
| 437 */ | |
| 438 public void internalWorked(double work) { | |
| 439 if (!fProgressIsVisible) { | |
| 440 if (System.currentTimeMillis() - fStartTime > DELAY_PROGRESS) { | |
| 441 showProgress(); | |
| 442 } | |
| 443 } | |
| 444 | |
| 445 if (fProgressBar !is null) { | |
| 446 fProgressBar.worked(work); | |
| 447 } | |
| 448 } | |
| 449 | |
| 450 /** | |
| 451 * Returns true if the user does some UI action to cancel this operation. | |
| 452 * (like hitting the Cancel button on the progress dialog). | |
| 453 * The long running operation typically polls isCanceled(). | |
| 454 */ | |
| 455 public bool isCanceled() { | |
| 456 return fIsCanceled; | |
| 457 } | |
| 458 | |
| 459 /** | |
| 460 * Returns <code>true</true> if the ProgressIndication provides UI for canceling | |
| 461 * a long running operation. | |
| 462 * @return <code>true</true> if the ProgressIndication provides UI for canceling | |
| 463 */ | |
| 464 public bool isCancelEnabled() { | |
| 465 return fCancelEnabled; | |
| 466 } | |
| 467 | |
| 468 /** | |
| 469 * Sets the cancel status. This method is usually called with the | |
| 470 * argument false if a client wants to abort a cancel action. | |
| 471 */ | |
| 472 public void setCanceled(bool b) { | |
| 473 fIsCanceled = b; | |
| 474 if (fCancelButton !is null) { | |
| 475 fCancelButton.setEnabled(!b); | |
| 476 } | |
| 477 } | |
| 478 | |
| 479 /** | |
| 480 * Controls whether the ProgressIndication provides UI for canceling | |
| 481 * a long running operation. | |
| 482 * If the ProgressIndication is currently visible calling this method may have | |
| 483 * a direct effect on the layout because it will make a cancel button visible. | |
| 484 * | |
| 485 * @param enabled <code>true</true> if cancel should be enabled | |
| 486 */ | |
| 487 public void setCancelEnabled(bool enabled) { | |
| 488 fCancelEnabled = enabled; | |
| 489 if (fProgressIsVisible && !fCancelButtonIsVisible && enabled) { | |
| 490 showButton(); | |
| 491 layout(); | |
| 492 } | |
| 493 if (fCancelButton !is null && !fCancelButton.isDisposed()) { | |
| 494 fCancelButton.setEnabled(enabled); | |
| 495 } | |
| 496 } | |
| 497 | |
| 498 /** | |
| 499 * Sets the error message text to be displayed on the status line. | |
| 500 * The image on the status line is cleared. | |
| 501 * | |
| 502 * @param message the error message, or <code>null</code> for no error message | |
| 503 */ | |
| 504 public void setErrorMessage(String message) { | |
| 505 setErrorMessage(null, message); | |
| 506 } | |
| 507 | |
| 508 /** | |
| 509 * Sets an image and error message text to be displayed on the status line. | |
| 510 * | |
| 511 * @param image the image to use, or <code>null</code> for no image | |
| 512 * @param message the error message, or <code>null</code> for no error message | |
| 513 */ | |
| 514 public void setErrorMessage(Image image, String message) { | |
| 515 fErrorText = trim(message); | |
| 516 fErrorImage = image; | |
| 517 updateMessageLabel(); | |
| 518 } | |
| 519 | |
| 520 /** | |
| 521 * Applies the given font to this status line. | |
| 522 */ | |
| 523 public void setFont(Font font) { | |
| 524 super.setFont(font); | |
| 525 Control[] children = getChildren(); | |
| 526 for (int i = 0; i < children.length; i++) { | |
| 527 children[i].setFont(font); | |
| 528 } | |
| 529 } | |
| 530 | |
| 531 /** | |
| 532 * Sets the message text to be displayed on the status line. | |
| 533 * The image on the status line is cleared. | |
| 534 * | |
| 535 * @param message the error message, or <code>null</code> for no error message | |
| 536 */ | |
| 537 public void setMessage(String message) { | |
| 538 setMessage(null, message); | |
| 539 } | |
| 540 | |
| 541 /** | |
| 542 * Sets an image and a message text to be displayed on the status line. | |
| 543 * | |
| 544 * @param image the image to use, or <code>null</code> for no image | |
| 545 * @param message the message, or <code>null</code> for no message | |
| 546 */ | |
| 547 public void setMessage(Image image, String message) { | |
| 548 fMessageText = trim(message); | |
| 549 fMessageImage = image; | |
| 550 updateMessageLabel(); | |
| 551 } | |
| 552 | |
| 553 /** | |
| 554 * @see IProgressMonitor#setTaskName(java.lang.String) | |
| 555 */ | |
| 556 public void setTaskName(String name) { | |
| 557 fTaskName = name; | |
| 558 } | |
| 559 | |
| 560 /** | |
| 561 * Makes the Cancel button visible. | |
| 562 * @private | |
| 563 */ | |
| 564 protected void showButton() { | |
| 565 if (fToolBar !is null && !fToolBar.isDisposed()) { | |
| 566 fToolBar.setVisible(true); | |
| 567 fToolBar.setEnabled(true); | |
| 568 fToolBar.setCursor(fStopButtonCursor); | |
| 569 fCancelButtonIsVisible = true; | |
| 570 } | |
| 571 } | |
| 572 | |
| 573 /** | |
| 574 * Shows the Cancel button and ProgressIndicator. | |
| 575 * @private | |
| 576 */ | |
| 577 protected void showProgress() { | |
| 578 if (!fProgressIsVisible && !isDisposed()) { | |
| 579 fProgressIsVisible = true; | |
| 580 if (fCancelEnabled) { | |
| 581 showButton(); | |
| 582 } | |
| 583 if (fProgressBarComposite !is null | |
| 584 && !fProgressBarComposite.isDisposed()) { | |
| 585 fProgressBarComposite.setVisible(true); | |
| 586 } | |
| 587 layout(); | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 /** | |
| 592 * @private | |
| 593 */ | |
| 594 void startTask(long timestamp, bool animated) { | |
| 595 if (!fProgressIsVisible && fStartTime is timestamp) { | |
| 596 showProgress(); | |
| 597 if (animated) { | |
| 598 if (fProgressBar !is null && !fProgressBar.isDisposed()) { | |
| 599 fProgressBar.beginAnimatedTask(); | |
| 600 } | |
| 601 } | |
| 602 } | |
| 603 } | |
| 604 | |
| 605 /** | |
| 606 * Notifies that a subtask of the main task is beginning. | |
| 607 * Subtasks are optional; the main task might not have subtasks. | |
| 608 * @param name the name (or description) of the subtask | |
| 609 * @see IProgressMonitor#subTask(String) | |
| 610 */ | |
| 611 public void subTask(String name) { | |
| 612 String text; | |
| 613 if (fTaskName.length is 0) { | |
| 614 text = name; | |
| 615 } else { | |
| 616 text = JFaceResources.format( | |
| 617 "Set_SubTask", [ fTaskName, name ]);//$NON-NLS-1$ | |
| 618 } | |
| 619 setMessage(text); | |
| 620 } | |
| 621 | |
| 622 /** | |
| 623 * Trims the message to be displayable in the status line. | |
| 624 * This just pulls out the first line of the message. | |
| 625 * Allows null. | |
| 626 */ | |
| 627 String trim(String message) { | |
| 628 if (message is null) { | |
| 629 return null; | |
| 630 } | |
| 631 int cr = message.indexOf('\r'); | |
| 632 int lf = message.indexOf('\n'); | |
| 633 if (cr is -1 && lf is -1) { | |
| 634 return message; | |
| 635 } | |
| 636 int len; | |
| 637 if (cr is -1) { | |
| 638 len = lf; | |
| 639 } else if (lf is -1) { | |
| 640 len = cr; | |
| 641 } else { | |
| 642 len = Math.min(cr, lf); | |
| 643 } | |
| 644 return message.substring(0, len); | |
| 645 } | |
| 646 | |
| 647 /** | |
| 648 * Updates the message label widget. | |
| 649 */ | |
| 650 protected void updateMessageLabel() { | |
| 651 if (fMessageLabel !is null && !fMessageLabel.isDisposed()) { | |
| 652 Display display = fMessageLabel.getDisplay(); | |
| 653 if ((fErrorText !is null && fErrorText.length > 0) | |
| 654 || fErrorImage !is null) { | |
| 655 fMessageLabel.setForeground(JFaceColors.getErrorText(display)); | |
| 656 fMessageLabel.setText(fErrorText); | |
| 657 fMessageLabel.setImage(fErrorImage); | |
| 658 } else { | |
| 659 fMessageLabel.setForeground(display | |
| 660 .getSystemColor(DWT.COLOR_WIDGET_FOREGROUND)); | |
| 661 fMessageLabel.setText(fMessageText is null ? "" : fMessageText); //$NON-NLS-1$ | |
| 662 fMessageLabel.setImage(fMessageImage); | |
| 663 } | |
| 664 } | |
| 665 } | |
| 666 | |
| 667 /** | |
| 668 * @see IProgressMonitor#worked(int) | |
| 669 */ | |
| 670 public void worked(int work) { | |
| 671 internalWorked(work); | |
| 672 } | |
| 673 } |