Mercurial > projects > dwt-addons
annotate dwtx/jface/text/source/projection/ProjectionViewer.d @ 158:25f1f92fa3df
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 26 Aug 2008 02:46:34 +0200 |
| parents | f70d9508c95c |
| children | 7926b636c282 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 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 module dwtx.jface.text.source.projection.ProjectionViewer; | |
| 14 | |
| 131 | 15 import dwtx.jface.text.source.projection.ProjectionSupport; // packageimport |
| 16 import dwtx.jface.text.source.projection.IProjectionPosition; // packageimport | |
| 17 import dwtx.jface.text.source.projection.AnnotationBag; // packageimport | |
| 18 import dwtx.jface.text.source.projection.ProjectionSummary; // packageimport | |
| 19 import dwtx.jface.text.source.projection.ProjectionAnnotationHover; // packageimport | |
| 20 import dwtx.jface.text.source.projection.ProjectionRulerColumn; // packageimport | |
| 21 import dwtx.jface.text.source.projection.ProjectionAnnotationModel; // packageimport | |
| 22 import dwtx.jface.text.source.projection.SourceViewerInformationControl; // packageimport | |
| 23 import dwtx.jface.text.source.projection.IProjectionListener; // packageimport | |
| 24 import dwtx.jface.text.source.projection.ProjectionAnnotation; // packageimport | |
| 25 | |
| 26 | |
| 129 | 27 import dwt.dwthelper.utils; |
| 28 | |
|
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29 import dwtx.dwtxhelper.Collection; |
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31 |
| 129 | 32 |
| 33 import dwt.DWTError; | |
| 34 import dwt.custom.ST; | |
| 35 import dwt.custom.StyledText; | |
| 36 import dwt.dnd.Clipboard; | |
| 37 import dwt.dnd.DND; | |
| 38 import dwt.dnd.TextTransfer; | |
| 39 import dwt.dnd.Transfer; | |
| 40 import dwt.events.VerifyEvent; | |
| 41 import dwt.graphics.Point; | |
| 42 import dwt.widgets.Composite; | |
| 43 import dwt.widgets.Display; | |
| 44 import dwtx.core.runtime.Assert; | |
| 45 import dwtx.jface.text.BadLocationException; | |
| 46 import dwtx.jface.text.DocumentEvent; | |
| 47 import dwtx.jface.text.FindReplaceDocumentAdapter; | |
| 48 import dwtx.jface.text.IDocument; | |
| 49 import dwtx.jface.text.IDocumentInformationMappingExtension; | |
| 50 import dwtx.jface.text.IDocumentListener; | |
| 51 import dwtx.jface.text.IRegion; | |
| 52 import dwtx.jface.text.ISlaveDocumentManager; | |
| 53 import dwtx.jface.text.ITextViewerExtension5; | |
| 54 import dwtx.jface.text.Position; | |
| 55 import dwtx.jface.text.Region; | |
| 56 import dwtx.jface.text.TextUtilities; | |
| 57 import dwtx.jface.text.projection.ProjectionDocument; | |
| 58 import dwtx.jface.text.projection.ProjectionDocumentEvent; | |
| 59 import dwtx.jface.text.projection.ProjectionDocumentManager; | |
| 60 import dwtx.jface.text.source.Annotation; | |
| 61 import dwtx.jface.text.source.AnnotationModelEvent; | |
| 62 import dwtx.jface.text.source.CompositeRuler; | |
| 63 import dwtx.jface.text.source.IAnnotationModel; | |
| 64 import dwtx.jface.text.source.IAnnotationModelExtension; | |
| 65 import dwtx.jface.text.source.IAnnotationModelListener; | |
| 66 import dwtx.jface.text.source.IAnnotationModelListenerExtension; | |
| 67 import dwtx.jface.text.source.IOverviewRuler; | |
| 68 import dwtx.jface.text.source.IVerticalRuler; | |
| 69 import dwtx.jface.text.source.IVerticalRulerColumn; | |
| 70 import dwtx.jface.text.source.SourceViewer; | |
| 71 | |
| 72 | |
| 73 /** | |
| 74 * A projection source viewer is a source viewer which supports multiple visible | |
| 75 * regions which can dynamically be changed. | |
| 76 * <p> | |
| 77 * A projection source viewer uses a <code>ProjectionDocumentManager</code> | |
| 78 * for the management of the visible document.</p> | |
| 79 * <p> | |
| 80 * NOTE: The <code>ProjectionViewer</code> only supports projections that cover full lines. | |
| 81 * </p> | |
| 82 * <p> | |
| 83 * This class should not be subclassed.</p> | |
| 84 * | |
| 85 * @since 3.0 | |
| 86 * @noextend This class is not intended to be subclassed by clients. | |
| 87 */ | |
| 88 public class ProjectionViewer : SourceViewer , ITextViewerExtension5 { | |
| 89 | |
| 147 | 90 private static const int BASE= INFORMATION; // see ISourceViewer.INFORMATION |
| 129 | 91 |
| 92 /** Operation constant for the expand operation. */ | |
| 147 | 93 public static const int EXPAND= BASE + 1; |
| 129 | 94 /** Operation constant for the collapse operation. */ |
| 147 | 95 public static const int COLLAPSE= BASE + 2; |
| 129 | 96 /** Operation constant for the toggle projection operation. */ |
| 147 | 97 public static const int TOGGLE= BASE + 3; |
| 129 | 98 /** Operation constant for the expand all operation. */ |
| 147 | 99 public static const int EXPAND_ALL= BASE + 4; |
| 129 | 100 /** |
| 101 * Operation constant for the collapse all operation. | |
| 145 | 102 * |
| 129 | 103 * @since 3.2 |
| 104 */ | |
| 147 | 105 public static const int COLLAPSE_ALL= BASE + 5; |
| 129 | 106 |
| 107 /** | |
| 108 * Internal listener to changes of the annotation model. | |
| 109 */ | |
| 110 private class AnnotationModelListener : IAnnotationModelListener, IAnnotationModelListenerExtension { | |
| 111 | |
| 112 /* | |
| 113 * @see dwtx.jface.text.source.IAnnotationModelListener#modelChanged(dwtx.jface.text.source.IAnnotationModel) | |
| 114 */ | |
| 115 public void modelChanged(IAnnotationModel model) { | |
| 116 processModelChanged(model, null); | |
| 117 } | |
| 118 | |
| 119 /* | |
| 120 * @see dwtx.jface.text.source.IAnnotationModelListenerExtension#modelChanged(dwtx.jface.text.source.AnnotationModelEvent) | |
| 121 */ | |
| 122 public void modelChanged(AnnotationModelEvent event) { | |
| 123 processModelChanged(event.getAnnotationModel(), event); | |
| 124 } | |
| 125 | |
| 126 private void processModelChanged(IAnnotationModel model, AnnotationModelEvent event) { | |
| 127 if (model is fProjectionAnnotationModel) { | |
| 128 | |
| 129 if (fProjectionSummary !is null) | |
| 130 fProjectionSummary.updateSummaries(); | |
| 131 processCatchupRequest(event); | |
| 132 | |
| 133 } else if (model is getAnnotationModel() && fProjectionSummary !is null) | |
| 134 fProjectionSummary.updateSummaries(); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 /** | |
| 139 * Executes the 'replaceVisibleDocument' operation when called the first time. Self-destructs afterwards. | |
| 140 */ | |
| 141 private class ReplaceVisibleDocumentExecutor : IDocumentListener { | |
| 142 | |
| 143 private IDocument fSlaveDocument; | |
| 144 private IDocument fExecutionTrigger; | |
| 145 | |
| 146 /** | |
| 147 * Creates a new executor in order to free the given slave document. | |
| 148 * | |
| 149 * @param slaveDocument the slave document to free | |
| 150 */ | |
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151 public this(IDocument slaveDocument) { |
| 129 | 152 fSlaveDocument= slaveDocument; |
| 153 } | |
| 154 | |
| 155 /** | |
| 156 * Installs this executor on the given trigger document. | |
| 157 * | |
| 158 * @param executionTrigger the trigger document | |
| 159 */ | |
| 160 public void install(IDocument executionTrigger) { | |
| 161 if (executionTrigger !is null && fSlaveDocument !is null) { | |
| 162 fExecutionTrigger= executionTrigger; | |
| 163 fExecutionTrigger.addDocumentListener(this); | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 /* | |
| 168 * @see dwtx.jface.text.IDocumentListener#documentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 169 */ | |
| 170 public void documentAboutToBeChanged(DocumentEvent event) { | |
| 171 } | |
| 172 | |
| 173 /* | |
| 174 * @see dwtx.jface.text.IDocumentListener#documentChanged(dwtx.jface.text.DocumentEvent) | |
| 175 */ | |
| 176 public void documentChanged(DocumentEvent event) { | |
| 177 fExecutionTrigger.removeDocumentListener(this); | |
| 178 executeReplaceVisibleDocument(fSlaveDocument); | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 /** | |
| 183 * A command representing a change of the projection document. This can be either | |
| 184 * adding a master document range, removing a master document change, or invalidating | |
| 185 * the viewer text presentation. | |
| 186 */ | |
| 187 private static class ProjectionCommand { | |
| 188 | |
| 189 final static int ADD= 0; | |
| 190 final static int REMOVE= 1; | |
| 191 final static int INVALIDATE_PRESENTATION= 2; | |
| 192 | |
| 193 ProjectionDocument fProjection; | |
| 194 int fType; | |
| 195 int fOffset; | |
| 196 int fLength; | |
| 197 | |
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198 this(ProjectionDocument projection, int type, int offset, int length) { |
| 129 | 199 fProjection= projection; |
| 200 fType= type; | |
| 201 fOffset= offset; | |
| 202 fLength= length; | |
| 203 } | |
| 204 | |
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205 this(int offset, int length) { |
| 129 | 206 fType= INVALIDATE_PRESENTATION; |
| 207 fOffset= offset; | |
| 208 fLength= length; | |
| 209 } | |
| 210 | |
| 211 int computeExpectedCosts() { | |
| 212 | |
| 213 switch(fType) { | |
| 214 case ADD: { | |
| 215 try { | |
| 216 IRegion[] gaps= fProjection.computeUnprojectedMasterRegions(fOffset, fLength); | |
| 217 return gaps is null ? 0 : gaps.length; | |
| 218 } catch (BadLocationException x) { | |
| 219 } | |
| 220 break; | |
| 221 } | |
| 222 case REMOVE: { | |
| 223 try { | |
| 224 IRegion[] fragments= fProjection.computeProjectedMasterRegions(fOffset, fLength); | |
| 225 return fragments is null ? 0 : fragments.length; | |
| 226 } catch (BadLocationException x) { | |
| 227 } | |
| 228 break; | |
| 229 } | |
| 230 } | |
| 231 return 0; | |
| 232 } | |
| 233 } | |
| 234 | |
| 235 /** | |
| 236 * The queue of projection command objects. | |
| 237 */ | |
| 238 private static class ProjectionCommandQueue { | |
| 239 | |
| 240 final static int REDRAW_COSTS= 15; | |
| 241 final static int INVALIDATION_COSTS= 10; | |
| 242 | |
| 243 List fList= new ArrayList(15); | |
| 244 int fExpectedExecutionCosts= -1; | |
| 245 | |
| 246 | |
| 247 void add(ProjectionCommand command) { | |
| 248 fList.add(command); | |
| 249 } | |
| 250 | |
| 251 Iterator iterator() { | |
| 252 return fList.iterator(); | |
| 253 } | |
| 254 | |
| 255 void clear() { | |
| 256 fList.clear(); | |
| 257 fExpectedExecutionCosts= -1; | |
| 258 } | |
| 259 | |
| 260 bool passedRedrawCostsThreshold() { | |
| 261 if (fExpectedExecutionCosts is -1) | |
| 262 computeExpectedExecutionCosts(); | |
| 263 return fExpectedExecutionCosts > REDRAW_COSTS; | |
| 264 } | |
| 265 | |
| 266 bool passedInvalidationCostsThreshold() { | |
| 267 if (fExpectedExecutionCosts is -1) | |
| 268 computeExpectedExecutionCosts(); | |
| 269 return fExpectedExecutionCosts > INVALIDATION_COSTS; | |
| 270 } | |
| 271 | |
| 272 private void computeExpectedExecutionCosts() { | |
| 273 int max_costs= Math.max(REDRAW_COSTS, INVALIDATION_COSTS); | |
| 274 fExpectedExecutionCosts= fList.size(); | |
| 275 if (fExpectedExecutionCosts <= max_costs) { | |
| 276 ProjectionCommand command; | |
| 277 Iterator e= fList.iterator(); | |
| 278 while (e.hasNext()) { | |
| 134 | 279 command= cast(ProjectionCommand) e.next(); |
| 129 | 280 fExpectedExecutionCosts += command.computeExpectedCosts(); |
| 281 if (fExpectedExecutionCosts > max_costs) | |
| 282 break; | |
| 283 } | |
| 284 } | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 /** The projection annotation model used by this viewer. */ | |
| 289 private ProjectionAnnotationModel fProjectionAnnotationModel; | |
| 290 /** The annotation model listener */ | |
| 291 private IAnnotationModelListener fAnnotationModelListener= new AnnotationModelListener(); | |
| 292 /** The projection summary. */ | |
| 293 private ProjectionSummary fProjectionSummary; | |
| 294 /** Indication that an annotation world change has not yet been processed. */ | |
| 295 private bool fPendingAnnotationWorldChange= false; | |
| 296 /** Indication whether projection changes in the visible document should be considered. */ | |
| 297 private bool fHandleProjectionChanges= true; | |
| 298 /** The list of projection listeners. */ | |
| 299 private List fProjectionListeners; | |
| 300 /** Internal lock for protecting the list of pending requests */ | |
| 301 private Object fLock= new Object(); | |
| 302 /** The list of pending requests */ | |
| 303 private List fPendingRequests= new ArrayList(); | |
| 304 /** The replace-visible-document execution trigger */ | |
| 305 private IDocument fReplaceVisibleDocumentExecutionTrigger; | |
| 306 /** <code>true</code> if projection was on the last time we switched to segmented mode. */ | |
| 307 private bool fWasProjectionEnabled; | |
| 308 /** The queue of projection commands used to assess the costs of projection changes. */ | |
| 309 private ProjectionCommandQueue fCommandQueue; | |
| 310 /** | |
| 311 * The amount of lines deleted by the last document event issued by the | |
| 312 * visible document event. | |
| 313 * @since 3.1 | |
| 314 */ | |
| 315 private int fDeletedLines; | |
| 316 | |
| 317 | |
| 318 /** | |
| 319 * Creates a new projection source viewer. | |
| 320 * | |
| 321 * @param parent the DWT parent control | |
| 322 * @param ruler the vertical ruler | |
| 323 * @param overviewRuler the overview ruler | |
| 324 * @param showsAnnotationOverview <code>true</code> if the overview ruler should be shown | |
| 325 * @param styles the DWT style bits | |
| 326 */ | |
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327 public this(Composite parent, IVerticalRuler ruler, IOverviewRuler overviewRuler, bool showsAnnotationOverview, int styles) { |
| 129 | 328 super(parent, ruler, overviewRuler, showsAnnotationOverview, styles); |
| 329 } | |
| 330 | |
| 331 /** | |
| 332 * Sets the projection summary for this viewer. | |
| 333 * | |
| 334 * @param projectionSummary the projection summary. | |
| 335 */ | |
| 336 public void setProjectionSummary(ProjectionSummary projectionSummary) { | |
| 337 fProjectionSummary= projectionSummary; | |
| 338 } | |
| 339 | |
| 340 /** | |
| 341 * Adds the projection annotation model to the given annotation model. | |
| 342 * | |
| 343 * @param model the model to which the projection annotation model is added | |
| 344 */ | |
| 345 private void addProjectionAnnotationModel(IAnnotationModel model) { | |
| 138 | 346 if ( cast(IAnnotationModelExtension)model ) { |
| 134 | 347 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 129 | 348 extension.addAnnotationModel(ProjectionSupport.PROJECTION, fProjectionAnnotationModel); |
| 349 model.addAnnotationModelListener(fAnnotationModelListener); | |
| 350 } | |
| 351 } | |
| 352 | |
| 353 /** | |
| 354 * Removes the projection annotation model from the given annotation model. | |
| 355 * | |
| 356 * @param model the mode from which the projection annotation model is removed | |
| 357 * @return the removed projection annotation model or <code>null</code> if there was none | |
| 358 */ | |
| 359 private IAnnotationModel removeProjectionAnnotationModel(IAnnotationModel model) { | |
| 138 | 360 if ( cast(IAnnotationModelExtension)model ) { |
| 129 | 361 model.removeAnnotationModelListener(fAnnotationModelListener); |
| 134 | 362 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 129 | 363 return extension.removeAnnotationModel(ProjectionSupport.PROJECTION); |
| 364 } | |
| 365 return null; | |
| 366 } | |
| 367 | |
| 368 /* | |
| 369 * @see dwtx.jface.text.source.SourceViewer#setDocument(dwtx.jface.text.IDocument, dwtx.jface.text.source.IAnnotationModel, int, int) | |
| 370 */ | |
| 371 public void setDocument(IDocument document, IAnnotationModel annotationModel, int modelRangeOffset, int modelRangeLength) { | |
| 372 bool wasProjectionEnabled= false; | |
| 373 | |
| 374 synchronized (fLock) { | |
| 375 fPendingRequests.clear(); | |
| 376 } | |
| 377 | |
| 378 if (fProjectionAnnotationModel !is null) { | |
| 379 wasProjectionEnabled= removeProjectionAnnotationModel(getVisualAnnotationModel()) !is null; | |
| 380 fProjectionAnnotationModel= null; | |
| 381 } | |
| 382 | |
| 383 super.setDocument(document, annotationModel, modelRangeOffset, modelRangeLength); | |
| 384 | |
| 385 if (wasProjectionEnabled && document !is null) | |
| 386 enableProjection(); | |
| 387 } | |
| 388 | |
| 389 /* | |
| 390 * @see dwtx.jface.text.source.SourceViewer#createVisualAnnotationModel(dwtx.jface.text.source.IAnnotationModel) | |
| 391 */ | |
| 392 protected IAnnotationModel createVisualAnnotationModel(IAnnotationModel annotationModel) { | |
| 393 IAnnotationModel model= super.createVisualAnnotationModel(annotationModel); | |
| 394 fProjectionAnnotationModel= new ProjectionAnnotationModel(); | |
| 395 return model; | |
| 396 } | |
| 397 | |
| 398 /** | |
| 399 * Returns the projection annotation model. | |
| 400 * | |
| 401 * @return the projection annotation model | |
| 402 */ | |
| 403 public ProjectionAnnotationModel getProjectionAnnotationModel() { | |
| 404 IAnnotationModel model= getVisualAnnotationModel(); | |
| 138 | 405 if ( cast(IAnnotationModelExtension)model ) { |
| 134 | 406 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 407 return cast(ProjectionAnnotationModel) extension.getAnnotationModel(ProjectionSupport.PROJECTION); | |
| 129 | 408 } |
| 409 return null; | |
| 410 } | |
| 411 | |
| 412 /* | |
| 413 * @see dwtx.jface.text.TextViewer#createSlaveDocumentManager() | |
| 414 */ | |
| 415 protected ISlaveDocumentManager createSlaveDocumentManager() { | |
| 416 return new ProjectionDocumentManager(); | |
| 417 } | |
| 418 | |
| 419 /* | |
| 420 * @see dwtx.jface.text.TextViewer#updateSlaveDocument(dwtx.jface.text.IDocument, int, int) | |
| 421 */ | |
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422 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) { |
| 138 | 423 if ( cast(ProjectionDocument)slaveDocument ) { |
| 134 | 424 ProjectionDocument projection= cast(ProjectionDocument) slaveDocument; |
| 129 | 425 |
| 426 int offset= modelRangeOffset; | |
| 427 int length= modelRangeLength; | |
| 428 | |
| 429 if (!isProjectionMode()) { | |
| 430 // mimic original TextViewer behavior | |
| 431 IDocument master= projection.getMasterDocument(); | |
| 432 int line= master.getLineOfOffset(modelRangeOffset); | |
| 433 offset= master.getLineOffset(line); | |
| 434 length= (modelRangeOffset - offset) + modelRangeLength; | |
| 435 | |
| 436 } | |
| 437 | |
| 438 try { | |
| 439 fHandleProjectionChanges= false; | |
| 440 projection.replaceMasterDocumentRanges(offset, length); | |
| 441 } finally { | |
| 442 fHandleProjectionChanges= true; | |
| 443 } | |
| 444 return true; | |
| 445 } | |
| 446 return false; | |
| 447 } | |
| 448 | |
| 449 /** | |
| 450 * Adds a projection annotation listener to this viewer. The listener may | |
| 451 * not be <code>null</code>. If the listener is already registered, this method | |
| 452 * does not have any effect. | |
| 453 * | |
| 454 * @param listener the listener to add | |
| 455 */ | |
| 456 public void addProjectionListener(IProjectionListener listener) { | |
| 457 | |
| 458 Assert.isNotNull(listener); | |
| 459 | |
| 460 if (fProjectionListeners is null) | |
| 461 fProjectionListeners= new ArrayList(); | |
| 462 | |
| 463 if (!fProjectionListeners.contains(listener)) | |
| 464 fProjectionListeners.add(listener); | |
| 465 } | |
| 466 | |
| 467 /** | |
| 468 * Removes the given listener from this viewer. The listener may not be | |
| 469 * <code>null</code>. If the listener is not registered with this viewer, | |
| 470 * this method is without effect. | |
| 471 * | |
| 472 * @param listener the listener to remove | |
| 473 */ | |
| 474 public void removeProjectionListener(IProjectionListener listener) { | |
| 475 | |
| 476 Assert.isNotNull(listener); | |
| 477 | |
| 478 if (fProjectionListeners !is null) { | |
| 479 fProjectionListeners.remove(listener); | |
| 480 if (fProjectionListeners.size() is 0) | |
| 481 fProjectionListeners= null; | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 /** | |
| 486 * Notifies all registered projection listeners | |
| 487 * that projection mode has been enabled. | |
| 488 */ | |
| 489 protected void fireProjectionEnabled() { | |
| 490 if (fProjectionListeners !is null) { | |
| 145 | 491 Iterator e= (new ArrayList(fProjectionListeners)).iterator(); |
| 129 | 492 while (e.hasNext()) { |
| 134 | 493 IProjectionListener l= cast(IProjectionListener) e.next(); |
| 129 | 494 l.projectionEnabled(); |
| 495 } | |
| 496 } | |
| 497 } | |
| 498 | |
| 499 /** | |
| 500 * Notifies all registered projection listeners | |
| 501 * that projection mode has been disabled. | |
| 502 */ | |
| 503 protected void fireProjectionDisabled() { | |
| 504 if (fProjectionListeners !is null) { | |
| 145 | 505 Iterator e= (new ArrayList(fProjectionListeners)).iterator(); |
| 129 | 506 while (e.hasNext()) { |
| 134 | 507 IProjectionListener l= cast(IProjectionListener) e.next(); |
| 129 | 508 l.projectionDisabled(); |
| 509 } | |
| 510 } | |
| 511 } | |
| 512 | |
| 513 /** | |
| 514 * Returns whether this viewer is in projection mode. | |
| 515 * | |
| 516 * @return <code>true</code> if this viewer is in projection mode, | |
| 517 * <code>false</code> otherwise | |
| 518 */ | |
| 519 public final bool isProjectionMode() { | |
| 520 return getProjectionAnnotationModel() !is null; | |
| 521 } | |
| 522 | |
| 523 /** | |
| 524 * Disables the projection mode. | |
| 525 */ | |
| 526 public final void disableProjection() { | |
| 527 if (isProjectionMode()) { | |
| 528 removeProjectionAnnotationModel(getVisualAnnotationModel()); | |
| 529 fProjectionAnnotationModel.removeAllAnnotations(); | |
| 530 fFindReplaceDocumentAdapter= null; | |
| 531 fireProjectionDisabled(); | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 /** | |
| 536 * Enables the projection mode. | |
| 537 */ | |
| 538 public final void enableProjection() { | |
| 539 if (!isProjectionMode()) { | |
| 540 addProjectionAnnotationModel(getVisualAnnotationModel()); | |
| 541 fFindReplaceDocumentAdapter= null; | |
| 542 fireProjectionEnabled(); | |
| 543 } | |
| 544 } | |
| 545 | |
| 546 private void expandAll() { | |
| 547 int offset= 0; | |
| 548 IDocument doc= getDocument(); | |
| 549 int length= doc is null ? 0 : doc.getLength(); | |
| 550 if (isProjectionMode()) { | |
| 551 fProjectionAnnotationModel.expandAll(offset, length); | |
| 552 } | |
| 553 } | |
| 554 | |
| 555 private void expand() { | |
| 556 if (isProjectionMode()) { | |
| 557 Position found= null; | |
| 558 Annotation bestMatch= null; | |
| 559 Point selection= getSelectedRange(); | |
| 560 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 561 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 562 if (annotation.isCollapsed()) { |
| 563 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 564 // take the first most fine grained match | |
| 565 if (position !is null && touches(selection, position)) | |
| 566 if (found is null || position.includes(found.offset) && position.includes(found.offset + found.length)) { | |
| 567 found= position; | |
| 568 bestMatch= annotation; | |
| 569 } | |
| 570 } | |
| 571 } | |
| 572 | |
| 573 if (bestMatch !is null) { | |
| 574 fProjectionAnnotationModel.expand(bestMatch); | |
| 575 revealRange(selection.x, selection.y); | |
| 576 } | |
| 577 } | |
| 578 } | |
| 579 | |
| 580 private bool touches(Point selection, Position position) { | |
| 581 return position.overlapsWith(selection.x, selection.y) || selection.y is 0 && position.offset + position.length is selection.x + selection.y; | |
| 582 } | |
| 583 | |
| 584 private void collapse() { | |
| 585 if (isProjectionMode()) { | |
| 586 Position found= null; | |
| 587 Annotation bestMatch= null; | |
| 588 Point selection= getSelectedRange(); | |
| 589 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 590 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 591 if (!annotation.isCollapsed()) { |
| 592 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 593 // take the first most fine grained match | |
| 594 if (position !is null && touches(selection, position)) | |
| 595 if (found is null || found.includes(position.offset) && found.includes(position.offset + position.length)) { | |
| 596 found= position; | |
| 597 bestMatch= annotation; | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 if (bestMatch !is null) { | |
| 603 fProjectionAnnotationModel.collapse(bestMatch); | |
| 604 revealRange(selection.x, selection.y); | |
| 605 } | |
| 606 } | |
| 607 } | |
| 608 | |
| 609 /* | |
| 610 * @since 3.2 | |
| 611 */ | |
| 612 private void collapseAll() { | |
| 613 int offset= 0; | |
| 614 IDocument doc= getDocument(); | |
| 615 int length= doc is null ? 0 : doc.getLength(); | |
| 616 if (isProjectionMode()) { | |
| 617 fProjectionAnnotationModel.collapseAll(offset, length); | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 /** | |
| 622 * Adds the given master range to the given projection document. While the | |
| 623 * modification is processed, the viewer no longer handles projection | |
| 624 * changes, as it is causing them. | |
| 625 * | |
| 626 * @param projection the projection document | |
| 627 * @param offset the offset in the master document | |
| 628 * @param length the length in the master document | |
| 629 * @throws BadLocationException in case the specified range is invalid | |
| 630 * | |
| 631 * @see ProjectionDocument#addMasterDocumentRange(int, int) | |
| 632 */ | |
|
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633 private void addMasterDocumentRange(ProjectionDocument projection, int offset, int length) { |
| 129 | 634 |
| 635 if (fCommandQueue !is null) { | |
| 636 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.ADD, offset, length)); | |
| 637 } else { | |
| 638 try { | |
| 639 fHandleProjectionChanges= false; | |
| 640 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258 | |
| 641 // make sure the document range is strictly line based | |
| 642 int end= offset + length; | |
| 643 offset= toLineStart(projection.getMasterDocument(), offset, false); | |
| 644 length= toLineStart(projection.getMasterDocument(), end, true) - offset; | |
| 645 projection.addMasterDocumentRange(offset, length); | |
| 646 } finally { | |
| 647 fHandleProjectionChanges= true; | |
| 648 } | |
| 649 } | |
| 650 } | |
| 651 | |
| 652 /** | |
| 653 * Removes the given master range from the given projection document. While the | |
| 654 * modification is processed, the viewer no longer handles projection | |
| 655 * changes, as it is causing them. | |
| 656 * | |
| 657 * @param projection the projection document | |
| 658 * @param offset the offset in the master document | |
| 659 * @param length the length in the master document | |
| 660 * @throws BadLocationException in case the specified range is invalid | |
| 661 * | |
| 662 * @see ProjectionDocument#removeMasterDocumentRange(int, int) | |
| 663 */ | |
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664 private void removeMasterDocumentRange(ProjectionDocument projection, int offset, int length) { |
| 129 | 665 if (fCommandQueue !is null) { |
| 666 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.REMOVE, offset, length)); | |
| 667 } else { | |
| 668 try { | |
| 669 fHandleProjectionChanges= false; | |
| 670 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258 | |
| 671 // make sure the document range is strictly line based | |
| 672 int end= offset + length; | |
| 673 offset= toLineStart(projection.getMasterDocument(), offset, false); | |
| 674 length= toLineStart(projection.getMasterDocument(), end, true) - offset; | |
| 675 projection.removeMasterDocumentRange(offset, length); | |
| 676 } finally { | |
| 677 fHandleProjectionChanges= true; | |
| 678 } | |
| 679 } | |
| 680 } | |
| 145 | 681 |
| 129 | 682 /** |
| 683 * Returns the first line offset <= <code>offset</code>. If <code>testLastLine</code> | |
| 684 * is <code>true</code> and the offset is on last line then <code>offset</code> is returned. | |
| 145 | 685 * |
| 129 | 686 * @param document the document |
| 687 * @param offset the master document offset | |
| 688 * @param testLastLine <code>true</code> if the test for the last line should be performed | |
| 689 * @return the closest line offset >= <code>offset</code> | |
| 690 * @throws BadLocationException if the offset is invalid | |
| 691 * @since 3.2 | |
| 692 */ | |
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693 private int toLineStart(IDocument document, int offset, bool testLastLine) { |
| 129 | 694 if (document is null) |
| 695 return offset; | |
| 145 | 696 |
| 129 | 697 if (testLastLine && offset >= document.getLineInformationOfOffset(document.getLength() - 1).getOffset()) |
| 698 return offset; | |
| 145 | 699 |
| 129 | 700 return document.getLineInformationOfOffset(offset).getOffset(); |
| 701 } | |
| 702 | |
| 703 /* | |
| 704 * @see dwtx.jface.text.TextViewer#setVisibleRegion(int, int) | |
| 705 */ | |
| 706 public void setVisibleRegion(int start, int length) { | |
| 707 fWasProjectionEnabled= isProjectionMode(); | |
| 708 disableProjection(); | |
| 709 super.setVisibleRegion(start, length); | |
| 710 } | |
| 711 | |
| 712 /* | |
| 713 * @see dwtx.jface.text.TextViewer#setVisibleDocument(dwtx.jface.text.IDocument) | |
| 714 */ | |
| 715 protected void setVisibleDocument(IDocument document) { | |
| 716 if (!isProjectionMode()) { | |
| 717 super.setVisibleDocument(document); | |
| 718 return; | |
| 719 } | |
| 720 | |
| 721 // In projection mode we don't want to throw away the find/replace document adapter | |
| 722 FindReplaceDocumentAdapter adapter= fFindReplaceDocumentAdapter; | |
| 723 super.setVisibleDocument(document); | |
| 724 fFindReplaceDocumentAdapter= adapter; | |
| 725 } | |
| 726 | |
| 727 /* | |
| 728 * @see dwtx.jface.text.TextViewer#resetVisibleRegion() | |
| 729 */ | |
| 730 public void resetVisibleRegion() { | |
| 731 super.resetVisibleRegion(); | |
| 732 if (fWasProjectionEnabled) | |
| 733 enableProjection(); | |
| 734 } | |
| 735 | |
| 736 /* | |
| 737 * @see dwtx.jface.text.ITextViewer#getVisibleRegion() | |
| 738 */ | |
| 739 public IRegion getVisibleRegion() { | |
| 740 disableProjection(); | |
| 741 IRegion visibleRegion= getModelCoverage(); | |
| 742 if (visibleRegion is null) | |
| 743 visibleRegion= new Region(0, 0); | |
| 744 | |
| 745 return visibleRegion; | |
| 746 } | |
| 747 | |
| 748 /* | |
| 749 * @see dwtx.jface.text.ITextViewer#overlapsWithVisibleRegion(int,int) | |
| 750 */ | |
| 751 public bool overlapsWithVisibleRegion(int offset, int length) { | |
| 752 disableProjection(); | |
| 753 IRegion coverage= getModelCoverage(); | |
| 754 if (coverage is null) | |
| 755 return false; | |
| 756 | |
| 757 bool appending= (offset is coverage.getOffset() + coverage.getLength()) && length is 0; | |
| 758 return appending || TextUtilities.overlaps(coverage, new Region(offset, length)); | |
| 759 } | |
| 760 | |
| 761 /** | |
| 762 * Replace the visible document with the given document. Maintains the | |
| 763 * scroll offset and the selection. | |
| 764 * | |
| 765 * @param slave the visible document | |
| 766 */ | |
| 767 private void replaceVisibleDocument(IDocument slave) { | |
| 768 if (fReplaceVisibleDocumentExecutionTrigger !is null) { | |
| 769 ReplaceVisibleDocumentExecutor executor= new ReplaceVisibleDocumentExecutor(slave); | |
| 770 executor.install(fReplaceVisibleDocumentExecutionTrigger); | |
| 771 } else | |
| 772 executeReplaceVisibleDocument(slave); | |
| 773 } | |
| 774 | |
| 775 | |
| 776 private void executeReplaceVisibleDocument(IDocument visibleDocument) { | |
| 777 StyledText textWidget= getTextWidget(); | |
| 778 try { | |
| 779 if (textWidget !is null && !textWidget.isDisposed()) | |
| 780 textWidget.setRedraw(false); | |
| 781 | |
| 782 int topIndex= getTopIndex(); | |
| 783 Point selection= getSelectedRange(); | |
| 784 setVisibleDocument(visibleDocument); | |
| 785 Point currentSelection= getSelectedRange(); | |
| 786 if (currentSelection.x !is selection.x || currentSelection.y !is selection.y) | |
| 787 setSelectedRange(selection.x, selection.y); | |
| 788 setTopIndex(topIndex); | |
| 789 | |
| 790 } finally { | |
| 791 if (textWidget !is null && !textWidget.isDisposed()) | |
| 792 textWidget.setRedraw(true); | |
| 793 } | |
| 794 } | |
| 795 | |
| 796 /** | |
| 797 * Hides the given range by collapsing it. If requested, a redraw request is issued. | |
| 798 * | |
| 799 * @param offset the offset of the range to hide | |
| 800 * @param length the length of the range to hide | |
| 801 * @param fireRedraw <code>true</code> if a redraw request should be issued, <code>false</code> otherwise | |
| 802 * @throws BadLocationException in case the range is invalid | |
| 803 */ | |
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804 private void collapse(int offset, int length, bool fireRedraw) { |
| 129 | 805 ProjectionDocument projection= null; |
| 806 | |
| 807 IDocument visibleDocument= getVisibleDocument(); | |
| 138 | 808 if ( cast(ProjectionDocument)visibleDocument ) |
| 134 | 809 projection= cast(ProjectionDocument) visibleDocument; |
| 129 | 810 else { |
| 811 IDocument master= getDocument(); | |
| 812 IDocument slave= createSlaveDocument(getDocument()); | |
| 138 | 813 if ( cast(ProjectionDocument)slave ) { |
| 134 | 814 projection= cast(ProjectionDocument) slave; |
| 129 | 815 addMasterDocumentRange(projection, 0, master.getLength()); |
| 816 replaceVisibleDocument(projection); | |
| 817 } | |
| 818 } | |
| 819 | |
| 820 if (projection !is null) | |
| 821 removeMasterDocumentRange(projection, offset, length); | |
| 822 | |
| 823 if (projection !is null && fireRedraw) { | |
| 824 // repaint line above to get the folding box | |
| 825 IDocument document= getDocument(); | |
| 826 int line= document.getLineOfOffset(offset); | |
| 827 if (line > 0) { | |
| 828 IRegion info= document.getLineInformation(line - 1); | |
| 829 internalInvalidateTextPresentation(info.getOffset(), info.getLength()); | |
| 830 } | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 /** | |
| 835 * Makes the given range visible again while not changing the folding state of any contained | |
| 836 * ranges. If requested, a redraw request is issued. | |
| 145 | 837 * |
| 129 | 838 * @param offset the offset of the range to be expanded |
| 839 * @param length the length of the range to be expanded | |
| 840 * @param fireRedraw <code>true</code> if a redraw request should be issued, | |
| 841 * <code>false</code> otherwise | |
| 842 * @throws BadLocationException in case the range is invalid | |
| 843 */ | |
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844 private void expand(int offset, int length, bool fireRedraw) { |
| 129 | 845 IDocument slave= getVisibleDocument(); |
| 138 | 846 if ( cast(ProjectionDocument)slave ) { |
| 134 | 847 ProjectionDocument projection= cast(ProjectionDocument) slave; |
| 129 | 848 |
| 849 // expand | |
| 850 addMasterDocumentRange(projection, offset, length); | |
| 851 | |
| 852 // collapse contained regions | |
| 853 ProjectionAnnotation[] collapsed= computeCollapsedNestedAnnotations(offset, length); | |
| 854 if (collapsed !is null) { | |
| 855 for (int i= 0; i < collapsed.length; i++) { | |
| 856 IRegion[] regions= computeCollapsedRegions(fProjectionAnnotationModel.getPosition(collapsed[i])); | |
| 857 if (regions !is null) | |
| 858 for (int j= 0; j < regions.length; j++) | |
| 859 removeMasterDocumentRange(projection, regions[j].getOffset(), regions[j].getLength()); | |
| 860 } | |
| 861 } | |
| 862 | |
| 863 // redraw if requested | |
| 864 if (fireRedraw) | |
| 865 internalInvalidateTextPresentation(offset, length); | |
| 866 } | |
| 867 } | |
| 868 | |
| 869 /** | |
| 870 * Processes the request for catch up with the annotation model in the UI thread. If the current | |
| 871 * thread is not the UI thread or there are pending catch up requests, a new request is posted. | |
| 872 * | |
| 873 * @param event the annotation model event | |
| 874 */ | |
| 875 protected final void processCatchupRequest(AnnotationModelEvent event) { | |
| 876 if (Display.getCurrent() !is null) { | |
| 877 bool run= false; | |
| 878 synchronized (fLock) { | |
| 879 run= fPendingRequests.isEmpty(); | |
| 880 } | |
| 881 if (run) { | |
| 882 | |
| 883 try { | |
| 884 catchupWithProjectionAnnotationModel(event); | |
| 885 } catch (BadLocationException x) { | |
| 886 throw new IllegalArgumentException(); | |
| 887 } | |
| 888 | |
| 889 } else | |
| 890 postCatchupRequest(event); | |
| 891 } else { | |
| 892 postCatchupRequest(event); | |
| 893 } | |
| 894 } | |
| 895 | |
| 896 /** | |
| 897 * Posts the request for catch up with the annotation model into the UI thread. | |
| 898 * | |
| 899 * @param event the annotation model event | |
| 900 */ | |
| 158 | 901 protected final void postCatchupRequest(AnnotationModelEvent event) { |
| 129 | 902 synchronized (fLock) { |
| 903 fPendingRequests.add(event); | |
| 904 if (fPendingRequests.size() is 1) { | |
| 905 StyledText widget= getTextWidget(); | |
| 906 if (widget !is null) { | |
| 907 Display display= widget.getDisplay(); | |
| 908 if (display !is null) { | |
| 135 | 909 display.asyncExec(new class() Runnable { |
| 129 | 910 public void run() { |
| 911 try { | |
| 912 while (true) { | |
| 913 AnnotationModelEvent ame= null; | |
| 914 synchronized (fLock) { | |
| 915 if (fPendingRequests.size() is 0) | |
| 916 return; | |
| 134 | 917 ame= cast(AnnotationModelEvent) fPendingRequests.remove(0); |
| 129 | 918 } |
| 919 catchupWithProjectionAnnotationModel(ame); | |
| 920 } | |
| 921 } catch (BadLocationException x) { | |
| 922 try { | |
| 923 catchupWithProjectionAnnotationModel(null); | |
| 924 } catch (BadLocationException x1) { | |
| 925 throw new IllegalArgumentException(); | |
| 926 } finally { | |
| 927 synchronized (fLock) { | |
| 928 fPendingRequests.clear(); | |
| 929 } | |
| 930 } | |
| 931 } | |
| 932 } | |
| 933 }); | |
| 934 } | |
| 935 } | |
| 936 } | |
| 937 } | |
| 938 } | |
| 145 | 939 |
| 129 | 940 /** |
| 941 * Tests whether the visible document's master document | |
| 942 * is identical to this viewer's document. | |
| 145 | 943 * |
| 129 | 944 * @return <code>true</code> if the visible document's master is |
| 945 * identical to this viewer's document | |
| 946 * @since 3.1 | |
| 947 */ | |
| 948 private bool isVisibleMasterDocumentSameAsDocument() { | |
| 949 IDocument visibleDocument= getVisibleDocument(); | |
| 138 | 950 return ( cast(ProjectionDocument)visibleDocument ) && (cast(ProjectionDocument)visibleDocument).getMasterDocument() is getDocument(); |
| 129 | 951 } |
| 952 | |
| 953 /** | |
| 954 * Adapts the slave visual document of this viewer to the changes described | |
| 955 * in the annotation model event. When the event is <code>null</code>, | |
| 956 * this is identical to a world change event. | |
| 957 * | |
| 958 * @param event the annotation model event or <code>null</code> | |
| 959 * @exception BadLocationException in case the annotation model event is no longer in synchronization with the document | |
| 960 */ | |
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961 private void catchupWithProjectionAnnotationModel(AnnotationModelEvent event) { |
| 145 | 962 |
| 129 | 963 if (event is null || !isVisibleMasterDocumentSameAsDocument()) { |
| 964 | |
| 965 fPendingAnnotationWorldChange= false; | |
| 966 reinitializeProjection(); | |
| 967 | |
| 968 } else if (event.isWorldChange()) { | |
| 969 | |
| 970 if (event.isValid()) { | |
| 971 fPendingAnnotationWorldChange= false; | |
| 972 reinitializeProjection(); | |
| 973 } else | |
| 974 fPendingAnnotationWorldChange= true; | |
| 975 | |
| 976 } else if (fPendingAnnotationWorldChange) { | |
| 977 if (event.isValid()) { | |
| 978 fPendingAnnotationWorldChange= false; | |
| 979 reinitializeProjection(); | |
| 980 } | |
| 981 } else { | |
| 145 | 982 |
| 129 | 983 Annotation[] addedAnnotations= event.getAddedAnnotations(); |
| 984 Annotation[] changedAnnotation= event.getChangedAnnotations(); | |
| 985 Annotation[] removedAnnotations= event.getRemovedAnnotations(); | |
| 145 | 986 |
| 129 | 987 fCommandQueue= new ProjectionCommandQueue(); |
| 145 | 988 |
| 129 | 989 bool isRedrawing= redraws(); |
| 990 int topIndex= isRedrawing ? getTopIndex() : -1; | |
| 145 | 991 |
| 129 | 992 processDeletions(event, removedAnnotations, true); |
| 993 List coverage= new ArrayList(); | |
| 994 processChanges(addedAnnotations, true, coverage); | |
| 995 processChanges(changedAnnotation, true, coverage); | |
| 145 | 996 |
| 129 | 997 ProjectionCommandQueue commandQueue= fCommandQueue; |
| 998 fCommandQueue= null; | |
| 145 | 999 |
| 129 | 1000 if (commandQueue.passedRedrawCostsThreshold()) { |
| 1001 setRedraw(false); | |
| 1002 try { | |
| 1003 executeProjectionCommands(commandQueue, false); | |
| 1004 } catch (IllegalArgumentException x) { | |
| 1005 reinitializeProjection(); | |
| 1006 } finally { | |
| 1007 setRedraw(true, topIndex); | |
| 1008 } | |
| 1009 } else { | |
| 1010 try { | |
| 1011 bool fireRedraw= !commandQueue.passedInvalidationCostsThreshold(); | |
| 1012 executeProjectionCommands(commandQueue, fireRedraw); | |
| 1013 if (!fireRedraw) | |
| 1014 invalidateTextPresentation(); | |
| 1015 } catch (IllegalArgumentException x) { | |
| 1016 reinitializeProjection(); | |
| 1017 } | |
| 1018 } | |
| 1019 } | |
| 1020 } | |
| 1021 | |
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1022 private void executeProjectionCommands(ProjectionCommandQueue commandQueue, bool fireRedraw) { |
| 129 | 1023 |
| 1024 ProjectionCommand command; | |
| 1025 Iterator e= commandQueue.iterator(); | |
| 1026 while (e.hasNext()) { | |
| 134 | 1027 command= cast(ProjectionCommand) e.next(); |
| 129 | 1028 switch (command.fType) { |
| 1029 case ProjectionCommand.ADD: | |
| 1030 addMasterDocumentRange(command.fProjection, command.fOffset, command.fLength); | |
| 1031 break; | |
| 1032 case ProjectionCommand.REMOVE: | |
| 1033 removeMasterDocumentRange(command.fProjection, command.fOffset, command.fLength); | |
| 1034 break; | |
| 1035 case ProjectionCommand.INVALIDATE_PRESENTATION: | |
| 1036 if (fireRedraw) | |
| 1037 invalidateTextPresentation(command.fOffset, command.fLength); | |
| 1038 break; | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1042 commandQueue.clear(); | |
| 1043 } | |
| 1044 | |
| 1045 private bool covers(int offset, int length, Position position) { | |
| 1046 if (!(position.offset is offset && position.length is length) && !position.isDeleted()) | |
| 1047 return offset <= position.getOffset() && position.getOffset() + position.getLength() <= offset + length; | |
| 1048 return false; | |
| 1049 } | |
| 1050 | |
| 1051 private ProjectionAnnotation[] computeCollapsedNestedAnnotations(int offset, int length) { | |
| 1052 List annotations= new ArrayList(5); | |
| 1053 Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1054 while (e.hasNext()) { | |
| 134 | 1055 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1056 if (annotation.isCollapsed()) { |
| 1057 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 1058 if (position is null) { | |
| 1059 // annotation might already be deleted, we will be informed later on about this deletion | |
| 1060 continue; | |
| 1061 } | |
| 1062 if (covers(offset, length, position)) | |
| 1063 annotations.add(annotation); | |
| 1064 } | |
| 1065 } | |
| 1066 | |
| 1067 if (annotations.size() > 0) { | |
| 1068 ProjectionAnnotation[] result= new ProjectionAnnotation[annotations.size()]; | |
| 1069 annotations.toArray(result); | |
| 1070 return result; | |
| 1071 } | |
| 1072 | |
| 1073 return null; | |
| 1074 } | |
| 1075 | |
| 1076 private void internalInvalidateTextPresentation(int offset, int length) { | |
| 1077 if (fCommandQueue !is null) { | |
| 1078 fCommandQueue.add(new ProjectionCommand(offset, length)); | |
| 1079 } else { | |
| 1080 invalidateTextPresentation(offset, length); | |
| 1081 } | |
| 1082 } | |
| 1083 | |
| 1084 /* | |
| 1085 * We pass the removed annotation into this method for performance reasons only. Otherwise, they could be fetch from the event. | |
| 1086 */ | |
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1087 private void processDeletions(AnnotationModelEvent event, Annotation[] removedAnnotations, bool fireRedraw) { |
| 129 | 1088 for (int i= 0; i < removedAnnotations.length; i++) { |
| 134 | 1089 ProjectionAnnotation annotation= cast(ProjectionAnnotation) removedAnnotations[i]; |
| 129 | 1090 if (annotation.isCollapsed()) { |
| 1091 Position expanded= event.getPositionOfRemovedAnnotation(annotation); | |
| 1092 expand(expanded.getOffset(), expanded.getLength(), fireRedraw); | |
| 1093 } | |
| 1094 } | |
| 1095 } | |
| 1096 | |
| 1097 /** | |
| 1098 * Computes the region that must be collapsed when the given position is the | |
| 1099 * position of an expanded projection annotation. | |
| 1100 * | |
| 1101 * @param position the position | |
| 1102 * @return the range that must be collapsed | |
| 1103 */ | |
| 1104 public IRegion computeCollapsedRegion(Position position) { | |
| 1105 try { | |
| 1106 IDocument document= getDocument(); | |
| 1107 if (document is null) | |
| 1108 return null; | |
| 145 | 1109 |
| 129 | 1110 int line= document.getLineOfOffset(position.getOffset()); |
| 1111 int offset= document.getLineOffset(line + 1); | |
| 1112 | |
| 1113 int length= position.getLength() - (offset - position.getOffset()); | |
| 1114 if (length > 0) | |
| 1115 return new Region(offset, length); | |
| 1116 } catch (BadLocationException x) { | |
| 1117 } | |
| 1118 | |
| 1119 return null; | |
| 1120 } | |
| 1121 | |
| 1122 /** | |
| 1123 * Computes the regions that must be collapsed when the given position is | |
| 1124 * the position of an expanded projection annotation. | |
| 1125 * | |
| 1126 * @param position the position | |
| 1127 * @return the ranges that must be collapsed, or <code>null</code> if | |
| 1128 * there are none | |
| 1129 * @since 3.1 | |
| 1130 */ | |
| 1131 IRegion[] computeCollapsedRegions(Position position) { | |
| 1132 try { | |
| 1133 IDocument document= getDocument(); | |
| 1134 if (document is null) | |
| 1135 return null; | |
| 1136 | |
| 138 | 1137 if ( cast(IProjectionPosition)position ) { |
| 134 | 1138 IProjectionPosition projPosition= cast(IProjectionPosition) position; |
| 129 | 1139 return projPosition.computeProjectionRegions(document); |
| 1140 } | |
| 1141 | |
| 1142 int line= document.getLineOfOffset(position.getOffset()); | |
| 1143 int offset= document.getLineOffset(line + 1); | |
| 1144 | |
| 1145 int length= position.getLength() - (offset - position.getOffset()); | |
| 1146 if (length > 0) | |
| 145 | 1147 return [new Region(offset, length)]; |
| 129 | 1148 |
| 1149 return null; | |
| 1150 } catch (BadLocationException x) { | |
| 1151 return null; | |
| 1152 } | |
| 1153 } | |
| 1154 | |
| 1155 /** | |
| 1156 * Computes the collapsed region anchor for the given position. Assuming | |
| 1157 * that the position is the position of an expanded projection annotation, | |
| 1158 * the anchor is the region that is still visible after the projection | |
| 1159 * annotation has been collapsed. | |
| 1160 * | |
| 1161 * @param position the position | |
| 1162 * @return the collapsed region anchor | |
| 1163 */ | |
| 1164 public Position computeCollapsedRegionAnchor(Position position) { | |
| 1165 try { | |
| 1166 IDocument document= getDocument(); | |
| 1167 if (document is null) | |
| 1168 return null; | |
| 1169 | |
| 1170 int captionOffset= position.getOffset(); | |
| 138 | 1171 if ( cast(IProjectionPosition)position ) |
| 134 | 1172 captionOffset+= (cast(IProjectionPosition) position).computeCaptionOffset(document); |
| 129 | 1173 |
| 1174 IRegion lineInfo= document.getLineInformationOfOffset(captionOffset); | |
| 1175 return new Position(lineInfo.getOffset() + lineInfo.getLength(), 0); | |
| 1176 } catch (BadLocationException x) { | |
| 1177 } | |
| 1178 return null; | |
| 1179 } | |
| 1180 | |
|
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1181 private void processChanges(Annotation[] annotations, bool fireRedraw, List coverage) { |
| 129 | 1182 for (int i= 0; i < annotations.length; i++) { |
| 134 | 1183 ProjectionAnnotation annotation= cast(ProjectionAnnotation) annotations[i]; |
| 129 | 1184 Position position= fProjectionAnnotationModel.getPosition(annotation); |
| 1185 | |
| 1186 if (position is null) | |
| 1187 continue; | |
| 1188 | |
| 1189 if (!covers(coverage, position)) { | |
| 1190 if (annotation.isCollapsed()) { | |
| 1191 coverage.add(position); | |
| 1192 IRegion[] regions= computeCollapsedRegions(position); | |
| 1193 if (regions !is null) | |
| 1194 for (int j= 0; j < regions.length; j++) | |
| 1195 collapse(regions[j].getOffset(), regions[j].getLength(), fireRedraw); | |
| 1196 } else { | |
| 1197 expand(position.getOffset(), position.getLength(), fireRedraw); | |
| 1198 } | |
| 1199 } | |
| 1200 } | |
| 1201 } | |
| 1202 | |
| 1203 private bool covers(List coverage, Position position) { | |
| 1204 Iterator e= coverage.iterator(); | |
| 1205 while (e.hasNext()) { | |
| 134 | 1206 Position p= cast(Position) e.next(); |
| 129 | 1207 if (p.getOffset() <= position.getOffset() && position.getOffset() + position.getLength() <= p.getOffset() + p.getLength()) |
| 1208 return true; | |
| 1209 } | |
| 1210 return false; | |
| 1211 } | |
| 1212 | |
| 1213 /** | |
| 1214 * Forces this viewer to throw away any old state and to initialize its content | |
| 1215 * from its projection annotation model. | |
| 1216 * | |
| 1217 * @throws BadLocationException in case something goes wrong during initialization | |
| 1218 */ | |
|
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1219 public final void reinitializeProjection() { |
| 129 | 1220 |
| 1221 ProjectionDocument projection= null; | |
| 1222 | |
| 1223 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 1224 if (manager !is null) { | |
| 1225 IDocument master= getDocument(); | |
| 1226 if (master !is null) { | |
| 1227 IDocument slave= manager.createSlaveDocument(master); | |
| 138 | 1228 if ( cast(ProjectionDocument)slave ) { |
| 134 | 1229 projection= cast(ProjectionDocument) slave; |
| 129 | 1230 addMasterDocumentRange(projection, 0, master.getLength()); |
| 1231 } | |
| 1232 } | |
| 1233 } | |
| 1234 | |
| 1235 if (projection !is null) { | |
| 1236 Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1237 while (e.hasNext()) { | |
| 134 | 1238 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1239 if (annotation.isCollapsed()) { |
| 1240 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 1241 if (position !is null) { | |
| 1242 IRegion[] regions= computeCollapsedRegions(position); | |
| 1243 if (regions !is null) | |
| 1244 for (int i= 0; i < regions.length; i++) | |
| 1245 removeMasterDocumentRange(projection, regions[i].getOffset(), regions[i].getLength()); | |
| 1246 } | |
| 1247 } | |
| 1248 } | |
| 1249 | |
| 1250 } | |
| 1251 | |
| 1252 replaceVisibleDocument(projection); | |
| 1253 } | |
| 1254 | |
| 1255 /* | |
| 1256 * @see dwtx.jface.text.TextViewer#handleVerifyEvent(dwt.events.VerifyEvent) | |
| 1257 */ | |
| 1258 protected void handleVerifyEvent(VerifyEvent e) { | |
| 1259 IRegion modelRange= event2ModelRange(e); | |
| 1260 if (exposeModelRange(modelRange)) | |
| 1261 e.doit= false; | |
| 1262 else | |
| 1263 super.handleVerifyEvent(e); | |
| 1264 } | |
| 1265 | |
| 1266 /** | |
| 1267 * Adds the give column as last column to this viewer's vertical ruler. | |
| 1268 * | |
| 1269 * @param column the column to be added | |
| 1270 */ | |
| 1271 public void addVerticalRulerColumn(IVerticalRulerColumn column) { | |
| 1272 IVerticalRuler ruler= getVerticalRuler(); | |
| 138 | 1273 if ( cast(CompositeRuler)ruler ) { |
| 134 | 1274 CompositeRuler compositeRuler= cast(CompositeRuler) ruler; |
| 129 | 1275 compositeRuler.addDecorator(99, column); |
| 1276 } | |
| 1277 } | |
| 1278 | |
| 1279 /** | |
| 1280 * Removes the give column from this viewer's vertical ruler. | |
| 1281 * | |
| 1282 * @param column the column to be removed | |
| 1283 */ | |
| 1284 public void removeVerticalRulerColumn(IVerticalRulerColumn column) { | |
| 1285 IVerticalRuler ruler= getVerticalRuler(); | |
| 138 | 1286 if ( cast(CompositeRuler)ruler ) { |
| 134 | 1287 CompositeRuler compositeRuler= cast(CompositeRuler) ruler; |
| 129 | 1288 compositeRuler.removeDecorator(column); |
| 1289 } | |
| 1290 } | |
| 1291 | |
| 1292 /* | |
| 1293 * @see dwtx.jface.text.ITextViewerExtension5#exposeModelRange(dwtx.jface.text.IRegion) | |
| 1294 */ | |
| 1295 public bool exposeModelRange(IRegion modelRange) { | |
| 1296 if (isProjectionMode()) | |
| 1297 return fProjectionAnnotationModel.expandAll(modelRange.getOffset(), modelRange.getLength()); | |
| 1298 | |
| 1299 if (!overlapsWithVisibleRegion(modelRange.getOffset(), modelRange.getLength())) { | |
| 1300 resetVisibleRegion(); | |
| 1301 return true; | |
| 1302 } | |
| 1303 | |
| 1304 return false; | |
| 1305 } | |
| 1306 | |
| 1307 /* | |
| 1308 * @see dwtx.jface.text.source.SourceViewer#setRangeIndication(int, int, bool) | |
| 1309 */ | |
| 1310 public void setRangeIndication(int offset, int length, bool moveCursor) { | |
| 1311 IRegion rangeIndication= getRangeIndication(); | |
| 1312 if (moveCursor && fProjectionAnnotationModel !is null && (rangeIndication is null || offset !is rangeIndication.getOffset() || length !is rangeIndication.getLength())) { | |
| 1313 List expand= new ArrayList(2); | |
| 1314 // expand the immediate effected collapsed regions | |
| 1315 Iterator iterator= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1316 while (iterator.hasNext()) { | |
| 134 | 1317 ProjectionAnnotation annotation= cast(ProjectionAnnotation)iterator.next(); |
| 129 | 1318 if (annotation.isCollapsed() && willAutoExpand(fProjectionAnnotationModel.getPosition(annotation), offset, length)) |
| 1319 expand.add(annotation); | |
| 1320 } | |
| 1321 | |
| 1322 if (!expand.isEmpty()) { | |
| 1323 Iterator e= expand.iterator(); | |
| 1324 while (e.hasNext()) | |
| 134 | 1325 fProjectionAnnotationModel.expand(cast(Annotation)e.next()); |
| 129 | 1326 } |
| 1327 } | |
| 1328 super.setRangeIndication(offset, length, moveCursor); | |
| 1329 } | |
| 1330 | |
| 1331 private bool willAutoExpand(Position position, int offset, int length) { | |
| 1332 if (position is null || position.isDeleted()) | |
| 1333 return false; | |
| 1334 // right or left boundary | |
| 1335 if (position.getOffset() is offset || position.getOffset() + position.getLength() is offset + length) | |
| 1336 return true; | |
| 1337 // completely embedded in given position | |
| 1338 if (position.getOffset() < offset && offset + length < position.getOffset() + position.getLength()) | |
| 1339 return true; | |
| 1340 return false; | |
| 1341 } | |
| 1342 | |
| 1343 /* | |
| 1344 * @see dwtx.jface.text.source.SourceViewer#handleDispose() | |
| 1345 * @since 3.0 | |
| 1346 */ | |
| 1347 protected void handleDispose() { | |
| 1348 fWasProjectionEnabled= false; | |
| 1349 super.handleDispose(); | |
| 1350 } | |
| 1351 | |
| 1352 /* | |
| 1353 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 1354 */ | |
| 1355 protected void handleVisibleDocumentChanged(DocumentEvent event) { | |
| 143 | 1356 if (fHandleProjectionChanges && cast(ProjectionDocumentEvent)event && isProjectionMode()) { |
| 134 | 1357 ProjectionDocumentEvent e= cast(ProjectionDocumentEvent) event; |
| 129 | 1358 |
| 1359 DocumentEvent master= e.getMasterEvent(); | |
| 1360 if (master !is null) | |
| 1361 fReplaceVisibleDocumentExecutionTrigger= master.getDocument(); | |
| 1362 | |
| 1363 try { | |
| 1364 | |
| 1365 int replaceLength= e.getText() is null ? 0 : e.getText().length(); | |
| 1366 if (ProjectionDocumentEvent.PROJECTION_CHANGE is e.getChangeType()) { | |
| 1367 if (e.getLength() is 0 && replaceLength !is 0) | |
| 1368 fProjectionAnnotationModel.expandAll(e.getMasterOffset(), e.getMasterLength()); | |
| 1369 } else if (master !is null && (replaceLength > 0 || fDeletedLines > 1)) { | |
| 1370 try { | |
| 1371 int numberOfLines= e.getDocument().getNumberOfLines(e.getOffset(), replaceLength); | |
| 1372 if (numberOfLines > 1 || fDeletedLines > 1) | |
| 1373 fProjectionAnnotationModel.expandAll(master.getOffset(), master.getLength()); | |
| 1374 } catch (BadLocationException x) { | |
| 1375 } | |
| 1376 } | |
| 1377 | |
| 1378 } finally { | |
| 1379 fReplaceVisibleDocumentExecutionTrigger= null; | |
| 1380 } | |
| 1381 | |
| 1382 } | |
| 1383 } | |
| 1384 | |
| 1385 /* | |
| 1386 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 1387 * @since 3.1 | |
| 1388 */ | |
| 1389 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { | |
| 143 | 1390 if (fHandleProjectionChanges && cast(ProjectionDocumentEvent)event && isProjectionMode()) { |
| 129 | 1391 int deletedLines; |
| 1392 try { | |
| 1393 deletedLines= event.getDocument().getNumberOfLines(event.getOffset(), event.getLength()); | |
| 1394 } catch (BadLocationException e1) { | |
| 1395 deletedLines= 0; | |
| 1396 } | |
| 1397 fDeletedLines= deletedLines; | |
| 1398 } | |
| 1399 } | |
| 1400 | |
| 1401 /* | |
| 1402 * @see dwtx.jface.text.ITextViewerExtension5#getCoveredModelRanges(dwtx.jface.text.IRegion) | |
| 1403 */ | |
| 1404 public IRegion[] getCoveredModelRanges(IRegion modelRange) { | |
| 1405 if (fInformationMapping is null) | |
| 145 | 1406 return [ new Region(modelRange.getOffset(), modelRange.getLength()) ]; |
| 129 | 1407 |
| 138 | 1408 if ( cast(IDocumentInformationMappingExtension)fInformationMapping ) { |
| 134 | 1409 IDocumentInformationMappingExtension extension= cast(IDocumentInformationMappingExtension) fInformationMapping; |
| 129 | 1410 try { |
| 1411 return extension.getExactCoverage(modelRange); | |
| 1412 } catch (BadLocationException x) { | |
| 1413 } | |
| 1414 } | |
| 1415 | |
| 1416 return null; | |
| 1417 } | |
| 1418 | |
| 1419 /* | |
| 1420 * @see dwtx.jface.text.ITextOperationTarget#doOperation(int) | |
| 1421 */ | |
| 1422 public void doOperation(int operation) { | |
| 1423 switch (operation) { | |
| 1424 case TOGGLE: | |
| 1425 if (canDoOperation(TOGGLE)) { | |
| 1426 if (!isProjectionMode()) { | |
| 1427 enableProjection(); | |
| 1428 } else { | |
| 1429 expandAll(); | |
| 1430 disableProjection(); | |
| 1431 } | |
| 1432 return; | |
| 1433 } | |
| 1434 } | |
| 1435 | |
| 1436 if (!isProjectionMode()) { | |
| 1437 super.doOperation(operation); | |
| 1438 return; | |
| 1439 } | |
| 1440 | |
| 1441 StyledText textWidget= getTextWidget(); | |
| 1442 if (textWidget is null) | |
| 1443 return; | |
| 1444 | |
| 1445 Point selection= null; | |
| 1446 switch (operation) { | |
| 1447 | |
| 1448 case CUT: | |
| 1449 | |
| 1450 if (redraws()) { | |
| 1451 selection= getSelectedRange(); | |
| 1452 if (exposeModelRange(new Region(selection.x, selection.y))) | |
| 1453 return; | |
| 145 | 1454 |
| 129 | 1455 if (selection.y is 0) |
| 1456 copyMarkedRegion(true); | |
| 1457 else | |
| 1458 copyToClipboard(selection.x, selection.y, true, textWidget); | |
| 1459 | |
| 1460 selection= textWidget.getSelectionRange(); | |
| 1461 fireSelectionChanged(selection.x, selection.y); | |
| 1462 } | |
| 1463 break; | |
| 1464 | |
| 1465 case COPY: | |
| 1466 | |
| 1467 if (redraws()) { | |
| 1468 selection= getSelectedRange(); | |
| 1469 if (selection.y is 0) | |
| 1470 copyMarkedRegion(false); | |
| 1471 else | |
| 1472 copyToClipboard(selection.x, selection.y, false, textWidget); | |
| 1473 } | |
| 1474 break; | |
| 1475 | |
| 1476 case DELETE: | |
| 1477 | |
| 1478 if (redraws()) { | |
| 1479 try { | |
| 1480 selection= getSelectedRange(); | |
| 1481 Point widgetSelection= textWidget.getSelectionRange(); | |
| 1482 if (selection.y is 0 || selection.y is widgetSelection.y) | |
| 1483 getTextWidget().invokeAction(ST.DELETE_NEXT); | |
| 1484 else | |
| 1485 deleteTextRange(selection.x, selection.y, textWidget); | |
| 1486 | |
| 1487 selection= textWidget.getSelectionRange(); | |
| 1488 fireSelectionChanged(selection.x, selection.y); | |
| 1489 | |
| 1490 } catch (BadLocationException x) { | |
| 1491 // ignore | |
| 1492 } | |
| 1493 } | |
| 1494 break; | |
| 1495 | |
| 1496 | |
| 1497 case EXPAND_ALL: | |
| 1498 if (redraws()) | |
| 1499 expandAll(); | |
| 1500 break; | |
| 1501 | |
| 1502 case EXPAND: | |
| 1503 if (redraws()) { | |
| 1504 expand(); | |
| 1505 } | |
| 1506 break; | |
| 1507 | |
| 1508 case COLLAPSE_ALL: | |
| 1509 if (redraws()) | |
| 1510 collapseAll(); | |
| 1511 break; | |
| 145 | 1512 |
| 129 | 1513 case COLLAPSE: |
| 1514 if (redraws()) { | |
| 1515 collapse(); | |
| 1516 } | |
| 1517 break; | |
| 1518 | |
| 1519 default: | |
| 1520 super.doOperation(operation); | |
| 1521 } | |
| 1522 } | |
| 1523 | |
| 1524 /* | |
| 1525 * @see dwtx.jface.text.source.SourceViewer#canDoOperation(int) | |
| 1526 */ | |
| 1527 public bool canDoOperation(int operation) { | |
| 1528 | |
| 1529 switch (operation) { | |
| 1530 case COLLAPSE: | |
| 1531 case COLLAPSE_ALL: | |
| 1532 case EXPAND: | |
| 1533 case EXPAND_ALL: | |
| 1534 return isProjectionMode(); | |
| 1535 case TOGGLE: | |
| 1536 return isProjectionMode() || !isSegmented(); | |
| 1537 } | |
| 1538 | |
| 1539 return super.canDoOperation(operation); | |
| 1540 } | |
| 1541 | |
| 1542 private bool isSegmented() { | |
| 1543 IDocument document= getDocument(); | |
| 1544 int length= document is null ? 0 : document.getLength(); | |
| 1545 IRegion visible= getModelCoverage(); | |
| 1546 bool isSegmented= visible !is null && !visible.equals(new Region(0, length)); | |
| 1547 return isSegmented; | |
| 1548 } | |
| 1549 | |
| 1550 private IRegion getMarkedRegion() { | |
| 1551 if (getTextWidget() is null) | |
| 1552 return null; | |
| 1553 | |
| 1554 if (fMarkPosition is null || fMarkPosition.isDeleted()) | |
| 1555 return null; | |
| 1556 | |
| 1557 int start= fMarkPosition.getOffset(); | |
| 1558 int end= getSelectedRange().x; | |
| 1559 | |
| 1560 return start > end ? new Region (end, start - end) : new Region(start, end - start); | |
| 1561 } | |
| 1562 | |
| 1563 /* | |
| 1564 * @see dwtx.jface.text.TextViewer#copyMarkedRegion(bool) | |
| 1565 */ | |
| 145 | 1566 protected void copyMarkedRegion(bool delete_) { |
| 129 | 1567 IRegion markedRegion= getMarkedRegion(); |
| 1568 if (markedRegion !is null) | |
| 145 | 1569 copyToClipboard(markedRegion.getOffset(), markedRegion.getLength(), delete_, getTextWidget()); |
| 129 | 1570 } |
| 1571 | |
| 145 | 1572 private void copyToClipboard(int offset, int length, bool delete_, StyledText textWidget) { |
| 129 | 1573 |
| 1574 String copyText= null; | |
| 1575 | |
| 1576 try { | |
| 1577 IDocument document= getDocument(); | |
| 1578 copyText= document.get(offset, length); | |
| 1579 } catch (BadLocationException ex) { | |
| 1580 // XXX: should log here, but JFace Text has no Log | |
| 1581 // As a fallback solution let the widget handle this | |
| 1582 textWidget.copy(); | |
| 1583 } | |
| 1584 | |
| 1585 if (copyText !is null && copyText.equals(textWidget.getSelectionText())) { | |
| 1586 /* | |
| 1587 * XXX: Reduce pain of https://bugs.eclipse.org/bugs/show_bug.cgi?id=64498 | |
| 1588 * by letting the widget handle the copy operation in this special case. | |
| 1589 */ | |
| 1590 textWidget.copy(); | |
| 1591 } else if (copyText !is null) { | |
| 1592 | |
| 1593 Clipboard clipboard= new Clipboard(textWidget.getDisplay()); | |
| 1594 | |
| 1595 try { | |
| 145 | 1596 Transfer[] dataTypes= [ TextTransfer.getInstance() ]; |
| 1597 Object[] data= [ stringcast(copyText) ]; | |
| 129 | 1598 try { |
| 1599 clipboard.setContents(data, dataTypes); | |
| 1600 } catch (DWTError e) { | |
| 1601 if (e.code !is DND.ERROR_CANNOT_SET_CLIPBOARD) | |
| 1602 throw e; | |
| 1603 /* | |
| 1604 * TODO see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59459 | |
| 1605 * we should either log and/or inform the user | |
| 1606 * silently fail for now. | |
| 1607 */ | |
| 1608 return; | |
| 1609 } | |
| 1610 | |
| 1611 } finally { | |
| 1612 clipboard.dispose(); | |
| 1613 } | |
| 1614 } | |
| 1615 | |
| 145 | 1616 if (delete_) { |
| 129 | 1617 try { |
| 1618 deleteTextRange(offset, length, textWidget); | |
| 1619 } catch (BadLocationException x) { | |
| 1620 // XXX: should log here, but JFace Text has no Log | |
| 1621 } | |
| 1622 } | |
| 1623 } | |
| 1624 | |
|
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diff
changeset
|
1625 private void deleteTextRange(int offset, int length, StyledText textWidget) { |
| 129 | 1626 getDocument().replace(offset, length, ""); //$NON-NLS-1$ |
| 1627 int widgetCaret= modelOffset2WidgetOffset(offset); | |
| 1628 if (widgetCaret > -1) | |
| 1629 textWidget.setSelection(widgetCaret); | |
| 1630 } | |
| 1631 | |
| 1632 /** | |
| 1633 * Adapts the behavior of the super class to respect line based folding. | |
| 1634 * | |
| 1635 * @param widgetSelection the widget selection | |
| 1636 * @return the model selection while respecting line based folding | |
| 1637 */ | |
| 1638 protected Point widgetSelection2ModelSelection(Point widgetSelection) { | |
| 1639 | |
| 1640 if (!isProjectionMode()) | |
| 1641 return super.widgetSelection2ModelSelection(widgetSelection); | |
| 1642 | |
| 1643 /* | |
| 1644 * There is one requirement that governs preservation of logical | |
| 1645 * positions: | |
| 1646 * | |
| 1647 * 1) a selection with widget_length is 0 should never expand to have | |
| 1648 * model_length > 0. | |
| 1649 * | |
| 1650 * There are a number of ambiguities to resolve with projection regions. | |
| 1651 * A projected region P has a widget-length of zero. Its widget offset | |
| 1652 * may interact with the selection S in various ways: | |
| 1653 * | |
| 1654 * A) P.widget_offset lies at the caret, S.widget_length is zero. | |
| 1655 * Requirement 1 applies. S is *behind* P (done so by widgetRange2ModelRange). | |
| 1656 * | |
| 1657 * B) P.widget_offset lies inside the widget selection. This case is | |
| 1658 * easy: P is included in S, which is automatically done so by | |
| 1659 * widgetRange2ModelRange. | |
| 1660 * | |
| 1661 * C) P.widget_offset lies at S.widget_end: This is | |
| 1662 * arguable - our policy is to include P if it belongs to a projection | |
| 1663 * annotation that overlaps with the widget selection. | |
| 1664 * | |
| 1665 * D) P.widget_offset lies at S.widget_offset: Arguable - our policy | |
| 1666 * is to include P if it belongs to a projection annotation that | |
| 1667 * overlaps with the widget selection | |
| 1668 */ | |
| 1669 IRegion modelSelection= widgetRange2ModelRange(new Region(widgetSelection.x, widgetSelection.y)); | |
| 1670 if (modelSelection is null) | |
| 1671 return null; | |
| 1672 | |
| 1673 int modelOffset= modelSelection.getOffset(); | |
| 1674 int modelEndOffset= modelOffset + modelSelection.getLength(); | |
| 1675 | |
| 1676 /* Case A: never expand a zero-length selection. S is *behind* P. */ | |
| 1677 if (widgetSelection.y is 0) | |
| 1678 return new Point(modelEndOffset, 0); | |
| 1679 | |
| 1680 int widgetSelectionExclusiveEnd= widgetSelection.x + widgetSelection.y; | |
| 1681 Position[] annotationPositions= computeOverlappingAnnotationPositions(modelSelection); | |
| 1682 for (int i= 0; i < annotationPositions.length; i++) { | |
| 1683 IRegion[] regions= computeCollapsedRegions(annotationPositions[i]); | |
| 1684 if (regions is null) | |
| 1685 continue; | |
| 1686 for (int j= 0; j < regions.length; j++) { | |
| 1687 IRegion modelRange= regions[j]; | |
| 1688 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange); | |
| 1689 // only take collapsed ranges, i.e. widget length is 0 | |
| 1690 if (widgetRange !is null && widgetRange.getLength() is 0) { | |
| 1691 int widgetOffset= widgetRange.getOffset(); | |
| 1692 // D) region is collapsed at S.widget_offset | |
| 1693 if (widgetOffset is widgetSelection.x) | |
| 1694 modelOffset= Math.min(modelOffset, modelRange.getOffset()); | |
| 1695 // C) region is collapsed at S.widget_end | |
| 1696 else if (widgetOffset is widgetSelectionExclusiveEnd) | |
| 1697 modelEndOffset= Math.max(modelEndOffset, modelRange.getOffset() + modelRange.getLength()); | |
| 1698 } | |
| 1699 } | |
| 1700 } | |
| 1701 return new Point(modelOffset, modelEndOffset - modelOffset); | |
| 1702 } | |
| 1703 | |
| 1704 /** | |
| 1705 * Returns the positions of all annotations that intersect with | |
| 1706 * <code>modelSelection</code> and that are at least partly visible. | |
| 1707 * @param modelSelection a model range | |
| 1708 * @return the positions of all annotations that intersect with | |
| 1709 * <code>modelSelection</code> | |
| 1710 * @since 3.1 | |
| 1711 */ | |
| 1712 private Position[] computeOverlappingAnnotationPositions(IRegion modelSelection) { | |
| 1713 List positions= new ArrayList(); | |
| 1714 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 1715 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1716 Position position= fProjectionAnnotationModel.getPosition(annotation); |
| 1717 if (position !is null && position.overlapsWith(modelSelection.getOffset(), modelSelection.getLength()) && modelRange2WidgetRange(position) !is null) | |
| 1718 positions.add(position); | |
| 1719 } | |
| 158 | 1720 return arraycast!(Position)( positions.toArray()); |
| 129 | 1721 } |
| 1722 | |
| 1723 /* | |
| 1724 * @see dwtx.jface.text.TextViewer#getFindReplaceDocumentAdapter() | |
| 1725 */ | |
| 1726 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() { | |
| 1727 if (fFindReplaceDocumentAdapter is null) { | |
| 1728 IDocument document= isProjectionMode() ? getDocument() : getVisibleDocument(); | |
| 1729 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(document); | |
| 1730 } | |
| 1731 return fFindReplaceDocumentAdapter; | |
| 1732 } | |
| 1733 | |
| 1734 /* | |
| 1735 * @see dwtx.jface.text.TextViewer#findAndSelect(int, java.lang.String, bool, bool, bool, bool) | |
| 1736 */ | |
| 1737 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 1738 | |
| 1739 if (!isProjectionMode()) | |
| 1740 return super.findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1741 | |
| 1742 StyledText textWidget= getTextWidget(); | |
| 1743 if (textWidget is null) | |
| 1744 return -1; | |
| 1745 | |
| 1746 try { | |
| 1747 | |
| 1748 IRegion matchRegion= getFindReplaceDocumentAdapter().find(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1749 if (matchRegion !is null) { | |
| 1750 exposeModelRange(matchRegion); | |
| 1751 revealRange(matchRegion.getOffset(), matchRegion.getLength()); | |
| 1752 setSelectedRange(matchRegion.getOffset(), matchRegion.getLength()); | |
| 1753 return matchRegion.getOffset(); | |
| 1754 } | |
| 1755 | |
| 1756 } catch (BadLocationException x) { | |
| 1757 } | |
| 1758 | |
| 1759 return -1; | |
| 1760 } | |
| 1761 | |
| 1762 /* | |
| 1763 * @see dwtx.jface.text.TextViewer#findAndSelectInRange(int, java.lang.String, bool, bool, bool, int, int, bool) | |
| 1764 */ | |
| 1765 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) { | |
| 1766 | |
| 1767 if (!isProjectionMode()) | |
| 1768 return super.findAndSelectInRange(startPosition, findString, forwardSearch, caseSensitive, wholeWord, rangeOffset, rangeLength, regExSearch); | |
| 1769 | |
| 1770 StyledText textWidget= getTextWidget(); | |
| 1771 if (textWidget is null) | |
| 1772 return -1; | |
| 1773 | |
| 1774 try { | |
| 1775 | |
| 1776 int modelOffset= startPosition; | |
| 1777 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) { | |
| 1778 modelOffset= rangeOffset; | |
| 1779 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) { | |
| 1780 modelOffset= rangeOffset + rangeLength; | |
| 1781 } | |
| 1782 | |
| 1783 IRegion matchRegion= getFindReplaceDocumentAdapter().find(modelOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1784 if (matchRegion !is null) { | |
| 1785 int offset= matchRegion.getOffset(); | |
| 1786 int length= matchRegion.getLength(); | |
| 1787 if (rangeOffset <= offset && offset + length <= rangeOffset + rangeLength) { | |
| 1788 exposeModelRange(matchRegion); | |
| 1789 revealRange(offset, length); | |
| 1790 setSelectedRange(offset, length); | |
| 1791 return offset; | |
| 1792 } | |
| 1793 } | |
| 1794 | |
| 1795 } catch (BadLocationException x) { | |
| 1796 } | |
| 1797 | |
| 1798 return -1; | |
| 1799 } | |
| 1800 } |