Mercurial > projects > dwt-addons
annotate dwtx/jface/text/source/projection/ProjectionViewer.d @ 162:1a5b8f8129df
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 08 Sep 2008 00:51:37 +0200 |
| parents | 7926b636c282 |
| children | c3583c6ec027 |
| 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; |
|
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28 import dwtx.dwtxhelper.Collection; |
| 162 | 29 import tango.core.Exception; |
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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 | |
| 162 | 90 public override IRegion getModelCoverage() { |
| 91 return super.getModelCoverage(); | |
| 92 } | |
| 93 public override int modelLine2WidgetLine(int modelLine) { | |
| 94 return super.modelLine2WidgetLine(modelLine); | |
| 95 } | |
| 96 public override int modelOffset2WidgetOffset(int modelOffset) { | |
| 97 return super.modelOffset2WidgetOffset(modelOffset); | |
| 98 } | |
| 99 public override IRegion modelRange2WidgetRange(IRegion modelRange) { | |
| 100 return super.modelRange2WidgetRange(modelRange); | |
| 101 } | |
| 102 protected override IRegion modelRange2WidgetRange(Position modelPosition) { | |
| 103 return super.modelRange2WidgetRange(modelPosition); | |
| 104 } | |
| 105 public override int widgetOffset2ModelOffset(int widgetOffset) { | |
| 106 return super.widgetOffset2ModelOffset(widgetOffset); | |
| 107 } | |
| 108 public override IRegion widgetRange2ModelRange(IRegion widgetRange) { | |
| 109 return super.widgetRange2ModelRange(widgetRange); | |
| 110 } | |
| 111 public int widgetLine2ModelLine(int widgetLine) { | |
| 112 return super.widgetLine2ModelLine(widgetLine); | |
| 113 } | |
| 114 public int widgetLineOfWidgetOffset(int widgetOffset) { | |
| 115 return super.widgetLineOfWidgetOffset(widgetOffset); | |
| 116 } | |
| 117 | |
| 147 | 118 private static const int BASE= INFORMATION; // see ISourceViewer.INFORMATION |
| 129 | 119 |
| 120 /** Operation constant for the expand operation. */ | |
| 147 | 121 public static const int EXPAND= BASE + 1; |
| 129 | 122 /** Operation constant for the collapse operation. */ |
| 147 | 123 public static const int COLLAPSE= BASE + 2; |
| 129 | 124 /** Operation constant for the toggle projection operation. */ |
| 147 | 125 public static const int TOGGLE= BASE + 3; |
| 129 | 126 /** Operation constant for the expand all operation. */ |
| 147 | 127 public static const int EXPAND_ALL= BASE + 4; |
| 129 | 128 /** |
| 129 * Operation constant for the collapse all operation. | |
| 145 | 130 * |
| 129 | 131 * @since 3.2 |
| 132 */ | |
| 147 | 133 public static const int COLLAPSE_ALL= BASE + 5; |
| 129 | 134 |
| 135 /** | |
| 136 * Internal listener to changes of the annotation model. | |
| 137 */ | |
| 138 private class AnnotationModelListener : IAnnotationModelListener, IAnnotationModelListenerExtension { | |
| 139 | |
| 140 /* | |
| 141 * @see dwtx.jface.text.source.IAnnotationModelListener#modelChanged(dwtx.jface.text.source.IAnnotationModel) | |
| 142 */ | |
| 143 public void modelChanged(IAnnotationModel model) { | |
| 144 processModelChanged(model, null); | |
| 145 } | |
| 146 | |
| 147 /* | |
| 148 * @see dwtx.jface.text.source.IAnnotationModelListenerExtension#modelChanged(dwtx.jface.text.source.AnnotationModelEvent) | |
| 149 */ | |
| 150 public void modelChanged(AnnotationModelEvent event) { | |
| 151 processModelChanged(event.getAnnotationModel(), event); | |
| 152 } | |
| 153 | |
| 154 private void processModelChanged(IAnnotationModel model, AnnotationModelEvent event) { | |
| 155 if (model is fProjectionAnnotationModel) { | |
| 156 | |
| 157 if (fProjectionSummary !is null) | |
| 158 fProjectionSummary.updateSummaries(); | |
| 159 processCatchupRequest(event); | |
| 160 | |
| 161 } else if (model is getAnnotationModel() && fProjectionSummary !is null) | |
| 162 fProjectionSummary.updateSummaries(); | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 /** | |
| 167 * Executes the 'replaceVisibleDocument' operation when called the first time. Self-destructs afterwards. | |
| 168 */ | |
| 169 private class ReplaceVisibleDocumentExecutor : IDocumentListener { | |
| 170 | |
| 171 private IDocument fSlaveDocument; | |
| 172 private IDocument fExecutionTrigger; | |
| 173 | |
| 174 /** | |
| 175 * Creates a new executor in order to free the given slave document. | |
| 176 * | |
| 177 * @param slaveDocument the slave document to free | |
| 178 */ | |
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179 public this(IDocument slaveDocument) { |
| 129 | 180 fSlaveDocument= slaveDocument; |
| 181 } | |
| 182 | |
| 183 /** | |
| 184 * Installs this executor on the given trigger document. | |
| 185 * | |
| 186 * @param executionTrigger the trigger document | |
| 187 */ | |
| 188 public void install(IDocument executionTrigger) { | |
| 189 if (executionTrigger !is null && fSlaveDocument !is null) { | |
| 190 fExecutionTrigger= executionTrigger; | |
| 191 fExecutionTrigger.addDocumentListener(this); | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 /* | |
| 196 * @see dwtx.jface.text.IDocumentListener#documentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 197 */ | |
| 198 public void documentAboutToBeChanged(DocumentEvent event) { | |
| 199 } | |
| 200 | |
| 201 /* | |
| 202 * @see dwtx.jface.text.IDocumentListener#documentChanged(dwtx.jface.text.DocumentEvent) | |
| 203 */ | |
| 204 public void documentChanged(DocumentEvent event) { | |
| 205 fExecutionTrigger.removeDocumentListener(this); | |
| 206 executeReplaceVisibleDocument(fSlaveDocument); | |
| 207 } | |
| 208 } | |
| 209 | |
| 210 /** | |
| 211 * A command representing a change of the projection document. This can be either | |
| 212 * adding a master document range, removing a master document change, or invalidating | |
| 213 * the viewer text presentation. | |
| 214 */ | |
| 215 private static class ProjectionCommand { | |
| 216 | |
| 162 | 217 const static int ADD= 0; |
| 218 const static int REMOVE= 1; | |
| 219 const static int INVALIDATE_PRESENTATION= 2; | |
| 129 | 220 |
| 221 ProjectionDocument fProjection; | |
| 222 int fType; | |
| 223 int fOffset; | |
| 224 int fLength; | |
| 225 | |
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226 this(ProjectionDocument projection, int type, int offset, int length) { |
| 129 | 227 fProjection= projection; |
| 228 fType= type; | |
| 229 fOffset= offset; | |
| 230 fLength= length; | |
| 231 } | |
| 232 | |
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233 this(int offset, int length) { |
| 129 | 234 fType= INVALIDATE_PRESENTATION; |
| 235 fOffset= offset; | |
| 236 fLength= length; | |
| 237 } | |
| 238 | |
| 239 int computeExpectedCosts() { | |
| 240 | |
| 241 switch(fType) { | |
| 242 case ADD: { | |
| 243 try { | |
| 244 IRegion[] gaps= fProjection.computeUnprojectedMasterRegions(fOffset, fLength); | |
| 245 return gaps is null ? 0 : gaps.length; | |
| 246 } catch (BadLocationException x) { | |
| 247 } | |
| 248 break; | |
| 249 } | |
| 250 case REMOVE: { | |
| 251 try { | |
| 252 IRegion[] fragments= fProjection.computeProjectedMasterRegions(fOffset, fLength); | |
| 253 return fragments is null ? 0 : fragments.length; | |
| 254 } catch (BadLocationException x) { | |
| 255 } | |
| 256 break; | |
| 257 } | |
| 258 } | |
| 259 return 0; | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 /** | |
| 264 * The queue of projection command objects. | |
| 265 */ | |
| 266 private static class ProjectionCommandQueue { | |
| 267 | |
| 268 final static int REDRAW_COSTS= 15; | |
| 269 final static int INVALIDATION_COSTS= 10; | |
| 270 | |
| 162 | 271 List fList; |
| 129 | 272 int fExpectedExecutionCosts= -1; |
| 273 | |
| 162 | 274 this(){ |
| 275 fList= new ArrayList(15); | |
| 276 } | |
| 129 | 277 |
| 278 void add(ProjectionCommand command) { | |
| 279 fList.add(command); | |
| 280 } | |
| 281 | |
| 282 Iterator iterator() { | |
| 283 return fList.iterator(); | |
| 284 } | |
| 285 | |
| 286 void clear() { | |
| 287 fList.clear(); | |
| 288 fExpectedExecutionCosts= -1; | |
| 289 } | |
| 290 | |
| 291 bool passedRedrawCostsThreshold() { | |
| 292 if (fExpectedExecutionCosts is -1) | |
| 293 computeExpectedExecutionCosts(); | |
| 294 return fExpectedExecutionCosts > REDRAW_COSTS; | |
| 295 } | |
| 296 | |
| 297 bool passedInvalidationCostsThreshold() { | |
| 298 if (fExpectedExecutionCosts is -1) | |
| 299 computeExpectedExecutionCosts(); | |
| 300 return fExpectedExecutionCosts > INVALIDATION_COSTS; | |
| 301 } | |
| 302 | |
| 303 private void computeExpectedExecutionCosts() { | |
| 304 int max_costs= Math.max(REDRAW_COSTS, INVALIDATION_COSTS); | |
| 305 fExpectedExecutionCosts= fList.size(); | |
| 306 if (fExpectedExecutionCosts <= max_costs) { | |
| 307 ProjectionCommand command; | |
| 308 Iterator e= fList.iterator(); | |
| 309 while (e.hasNext()) { | |
| 134 | 310 command= cast(ProjectionCommand) e.next(); |
| 129 | 311 fExpectedExecutionCosts += command.computeExpectedCosts(); |
| 312 if (fExpectedExecutionCosts > max_costs) | |
| 313 break; | |
| 314 } | |
| 315 } | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 /** The projection annotation model used by this viewer. */ | |
| 320 private ProjectionAnnotationModel fProjectionAnnotationModel; | |
| 321 /** The annotation model listener */ | |
| 159 | 322 private IAnnotationModelListener fAnnotationModelListener; |
| 129 | 323 /** The projection summary. */ |
| 324 private ProjectionSummary fProjectionSummary; | |
| 325 /** Indication that an annotation world change has not yet been processed. */ | |
| 326 private bool fPendingAnnotationWorldChange= false; | |
| 327 /** Indication whether projection changes in the visible document should be considered. */ | |
| 328 private bool fHandleProjectionChanges= true; | |
| 329 /** The list of projection listeners. */ | |
| 330 private List fProjectionListeners; | |
| 331 /** Internal lock for protecting the list of pending requests */ | |
| 159 | 332 private Object fLock; |
| 129 | 333 /** The list of pending requests */ |
| 159 | 334 private List fPendingRequests; |
| 129 | 335 /** The replace-visible-document execution trigger */ |
| 336 private IDocument fReplaceVisibleDocumentExecutionTrigger; | |
| 337 /** <code>true</code> if projection was on the last time we switched to segmented mode. */ | |
| 338 private bool fWasProjectionEnabled; | |
| 339 /** The queue of projection commands used to assess the costs of projection changes. */ | |
| 340 private ProjectionCommandQueue fCommandQueue; | |
| 341 /** | |
| 342 * The amount of lines deleted by the last document event issued by the | |
| 343 * visible document event. | |
| 344 * @since 3.1 | |
| 345 */ | |
| 346 private int fDeletedLines; | |
| 347 | |
| 348 | |
| 349 /** | |
| 350 * Creates a new projection source viewer. | |
| 351 * | |
| 352 * @param parent the DWT parent control | |
| 353 * @param ruler the vertical ruler | |
| 354 * @param overviewRuler the overview ruler | |
| 355 * @param showsAnnotationOverview <code>true</code> if the overview ruler should be shown | |
| 356 * @param styles the DWT style bits | |
| 357 */ | |
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358 public this(Composite parent, IVerticalRuler ruler, IOverviewRuler overviewRuler, bool showsAnnotationOverview, int styles) { |
| 159 | 359 |
| 360 fAnnotationModelListener= new AnnotationModelListener(); | |
| 361 fLock= new Object(); | |
| 362 fPendingRequests= new ArrayList(); | |
| 363 | |
| 129 | 364 super(parent, ruler, overviewRuler, showsAnnotationOverview, styles); |
| 365 } | |
| 366 | |
| 367 /** | |
| 368 * Sets the projection summary for this viewer. | |
| 369 * | |
| 370 * @param projectionSummary the projection summary. | |
| 371 */ | |
| 372 public void setProjectionSummary(ProjectionSummary projectionSummary) { | |
| 373 fProjectionSummary= projectionSummary; | |
| 374 } | |
| 375 | |
| 376 /** | |
| 377 * Adds the projection annotation model to the given annotation model. | |
| 378 * | |
| 379 * @param model the model to which the projection annotation model is added | |
| 380 */ | |
| 381 private void addProjectionAnnotationModel(IAnnotationModel model) { | |
| 138 | 382 if ( cast(IAnnotationModelExtension)model ) { |
| 134 | 383 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 129 | 384 extension.addAnnotationModel(ProjectionSupport.PROJECTION, fProjectionAnnotationModel); |
| 385 model.addAnnotationModelListener(fAnnotationModelListener); | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 /** | |
| 390 * Removes the projection annotation model from the given annotation model. | |
| 391 * | |
| 392 * @param model the mode from which the projection annotation model is removed | |
| 393 * @return the removed projection annotation model or <code>null</code> if there was none | |
| 394 */ | |
| 395 private IAnnotationModel removeProjectionAnnotationModel(IAnnotationModel model) { | |
| 138 | 396 if ( cast(IAnnotationModelExtension)model ) { |
| 129 | 397 model.removeAnnotationModelListener(fAnnotationModelListener); |
| 134 | 398 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 129 | 399 return extension.removeAnnotationModel(ProjectionSupport.PROJECTION); |
| 400 } | |
| 401 return null; | |
| 402 } | |
| 403 | |
| 404 /* | |
| 405 * @see dwtx.jface.text.source.SourceViewer#setDocument(dwtx.jface.text.IDocument, dwtx.jface.text.source.IAnnotationModel, int, int) | |
| 406 */ | |
| 407 public void setDocument(IDocument document, IAnnotationModel annotationModel, int modelRangeOffset, int modelRangeLength) { | |
| 408 bool wasProjectionEnabled= false; | |
| 409 | |
| 410 synchronized (fLock) { | |
| 411 fPendingRequests.clear(); | |
| 412 } | |
| 413 | |
| 414 if (fProjectionAnnotationModel !is null) { | |
| 415 wasProjectionEnabled= removeProjectionAnnotationModel(getVisualAnnotationModel()) !is null; | |
| 416 fProjectionAnnotationModel= null; | |
| 417 } | |
| 418 | |
| 419 super.setDocument(document, annotationModel, modelRangeOffset, modelRangeLength); | |
| 420 | |
| 421 if (wasProjectionEnabled && document !is null) | |
| 422 enableProjection(); | |
| 423 } | |
| 424 | |
| 425 /* | |
| 426 * @see dwtx.jface.text.source.SourceViewer#createVisualAnnotationModel(dwtx.jface.text.source.IAnnotationModel) | |
| 427 */ | |
| 428 protected IAnnotationModel createVisualAnnotationModel(IAnnotationModel annotationModel) { | |
| 429 IAnnotationModel model= super.createVisualAnnotationModel(annotationModel); | |
| 430 fProjectionAnnotationModel= new ProjectionAnnotationModel(); | |
| 431 return model; | |
| 432 } | |
| 433 | |
| 434 /** | |
| 435 * Returns the projection annotation model. | |
| 436 * | |
| 437 * @return the projection annotation model | |
| 438 */ | |
| 439 public ProjectionAnnotationModel getProjectionAnnotationModel() { | |
| 440 IAnnotationModel model= getVisualAnnotationModel(); | |
| 138 | 441 if ( cast(IAnnotationModelExtension)model ) { |
| 134 | 442 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) model; |
| 443 return cast(ProjectionAnnotationModel) extension.getAnnotationModel(ProjectionSupport.PROJECTION); | |
| 129 | 444 } |
| 445 return null; | |
| 446 } | |
| 447 | |
| 448 /* | |
| 449 * @see dwtx.jface.text.TextViewer#createSlaveDocumentManager() | |
| 450 */ | |
| 451 protected ISlaveDocumentManager createSlaveDocumentManager() { | |
| 452 return new ProjectionDocumentManager(); | |
| 453 } | |
| 454 | |
| 455 /* | |
| 456 * @see dwtx.jface.text.TextViewer#updateSlaveDocument(dwtx.jface.text.IDocument, int, int) | |
| 457 */ | |
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458 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) { |
| 138 | 459 if ( cast(ProjectionDocument)slaveDocument ) { |
| 134 | 460 ProjectionDocument projection= cast(ProjectionDocument) slaveDocument; |
| 129 | 461 |
| 462 int offset= modelRangeOffset; | |
| 463 int length= modelRangeLength; | |
| 464 | |
| 465 if (!isProjectionMode()) { | |
| 466 // mimic original TextViewer behavior | |
| 467 IDocument master= projection.getMasterDocument(); | |
| 468 int line= master.getLineOfOffset(modelRangeOffset); | |
| 469 offset= master.getLineOffset(line); | |
| 470 length= (modelRangeOffset - offset) + modelRangeLength; | |
| 471 | |
| 472 } | |
| 473 | |
| 474 try { | |
| 475 fHandleProjectionChanges= false; | |
| 476 projection.replaceMasterDocumentRanges(offset, length); | |
| 477 } finally { | |
| 478 fHandleProjectionChanges= true; | |
| 479 } | |
| 480 return true; | |
| 481 } | |
| 482 return false; | |
| 483 } | |
| 484 | |
| 485 /** | |
| 486 * Adds a projection annotation listener to this viewer. The listener may | |
| 487 * not be <code>null</code>. If the listener is already registered, this method | |
| 488 * does not have any effect. | |
| 489 * | |
| 490 * @param listener the listener to add | |
| 491 */ | |
| 492 public void addProjectionListener(IProjectionListener listener) { | |
| 493 | |
| 162 | 494 Assert.isNotNull(cast(Object)listener); |
| 129 | 495 |
| 496 if (fProjectionListeners is null) | |
| 497 fProjectionListeners= new ArrayList(); | |
| 498 | |
| 162 | 499 if (!fProjectionListeners.contains(cast(Object)listener)) |
| 500 fProjectionListeners.add(cast(Object)listener); | |
| 129 | 501 } |
| 502 | |
| 503 /** | |
| 504 * Removes the given listener from this viewer. The listener may not be | |
| 505 * <code>null</code>. If the listener is not registered with this viewer, | |
| 506 * this method is without effect. | |
| 507 * | |
| 508 * @param listener the listener to remove | |
| 509 */ | |
| 510 public void removeProjectionListener(IProjectionListener listener) { | |
| 511 | |
| 162 | 512 Assert.isNotNull(cast(Object)listener); |
| 129 | 513 |
| 514 if (fProjectionListeners !is null) { | |
| 162 | 515 fProjectionListeners.remove(cast(Object)listener); |
| 129 | 516 if (fProjectionListeners.size() is 0) |
| 517 fProjectionListeners= null; | |
| 518 } | |
| 519 } | |
| 520 | |
| 521 /** | |
| 522 * Notifies all registered projection listeners | |
| 523 * that projection mode has been enabled. | |
| 524 */ | |
| 525 protected void fireProjectionEnabled() { | |
| 526 if (fProjectionListeners !is null) { | |
| 145 | 527 Iterator e= (new ArrayList(fProjectionListeners)).iterator(); |
| 129 | 528 while (e.hasNext()) { |
| 134 | 529 IProjectionListener l= cast(IProjectionListener) e.next(); |
| 129 | 530 l.projectionEnabled(); |
| 531 } | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 /** | |
| 536 * Notifies all registered projection listeners | |
| 537 * that projection mode has been disabled. | |
| 538 */ | |
| 539 protected void fireProjectionDisabled() { | |
| 540 if (fProjectionListeners !is null) { | |
| 145 | 541 Iterator e= (new ArrayList(fProjectionListeners)).iterator(); |
| 129 | 542 while (e.hasNext()) { |
| 134 | 543 IProjectionListener l= cast(IProjectionListener) e.next(); |
| 129 | 544 l.projectionDisabled(); |
| 545 } | |
| 546 } | |
| 547 } | |
| 548 | |
| 549 /** | |
| 550 * Returns whether this viewer is in projection mode. | |
| 551 * | |
| 552 * @return <code>true</code> if this viewer is in projection mode, | |
| 553 * <code>false</code> otherwise | |
| 554 */ | |
| 555 public final bool isProjectionMode() { | |
| 556 return getProjectionAnnotationModel() !is null; | |
| 557 } | |
| 558 | |
| 559 /** | |
| 560 * Disables the projection mode. | |
| 561 */ | |
| 562 public final void disableProjection() { | |
| 563 if (isProjectionMode()) { | |
| 564 removeProjectionAnnotationModel(getVisualAnnotationModel()); | |
| 565 fProjectionAnnotationModel.removeAllAnnotations(); | |
| 566 fFindReplaceDocumentAdapter= null; | |
| 567 fireProjectionDisabled(); | |
| 568 } | |
| 569 } | |
| 570 | |
| 571 /** | |
| 572 * Enables the projection mode. | |
| 573 */ | |
| 574 public final void enableProjection() { | |
| 575 if (!isProjectionMode()) { | |
| 576 addProjectionAnnotationModel(getVisualAnnotationModel()); | |
| 577 fFindReplaceDocumentAdapter= null; | |
| 578 fireProjectionEnabled(); | |
| 579 } | |
| 580 } | |
| 581 | |
| 582 private void expandAll() { | |
| 583 int offset= 0; | |
| 584 IDocument doc= getDocument(); | |
| 585 int length= doc is null ? 0 : doc.getLength(); | |
| 586 if (isProjectionMode()) { | |
| 587 fProjectionAnnotationModel.expandAll(offset, length); | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 private void expand() { | |
| 592 if (isProjectionMode()) { | |
| 593 Position found= null; | |
| 594 Annotation bestMatch= null; | |
| 595 Point selection= getSelectedRange(); | |
| 596 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 597 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 598 if (annotation.isCollapsed()) { |
| 599 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 600 // take the first most fine grained match | |
| 601 if (position !is null && touches(selection, position)) | |
| 602 if (found is null || position.includes(found.offset) && position.includes(found.offset + found.length)) { | |
| 603 found= position; | |
| 604 bestMatch= annotation; | |
| 605 } | |
| 606 } | |
| 607 } | |
| 608 | |
| 609 if (bestMatch !is null) { | |
| 610 fProjectionAnnotationModel.expand(bestMatch); | |
| 611 revealRange(selection.x, selection.y); | |
| 612 } | |
| 613 } | |
| 614 } | |
| 615 | |
| 616 private bool touches(Point selection, Position position) { | |
| 617 return position.overlapsWith(selection.x, selection.y) || selection.y is 0 && position.offset + position.length is selection.x + selection.y; | |
| 618 } | |
| 619 | |
| 620 private void collapse() { | |
| 621 if (isProjectionMode()) { | |
| 622 Position found= null; | |
| 623 Annotation bestMatch= null; | |
| 624 Point selection= getSelectedRange(); | |
| 625 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 626 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 627 if (!annotation.isCollapsed()) { |
| 628 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 629 // take the first most fine grained match | |
| 630 if (position !is null && touches(selection, position)) | |
| 631 if (found is null || found.includes(position.offset) && found.includes(position.offset + position.length)) { | |
| 632 found= position; | |
| 633 bestMatch= annotation; | |
| 634 } | |
| 635 } | |
| 636 } | |
| 637 | |
| 638 if (bestMatch !is null) { | |
| 639 fProjectionAnnotationModel.collapse(bestMatch); | |
| 640 revealRange(selection.x, selection.y); | |
| 641 } | |
| 642 } | |
| 643 } | |
| 644 | |
| 645 /* | |
| 646 * @since 3.2 | |
| 647 */ | |
| 648 private void collapseAll() { | |
| 649 int offset= 0; | |
| 650 IDocument doc= getDocument(); | |
| 651 int length= doc is null ? 0 : doc.getLength(); | |
| 652 if (isProjectionMode()) { | |
| 653 fProjectionAnnotationModel.collapseAll(offset, length); | |
| 654 } | |
| 655 } | |
| 656 | |
| 657 /** | |
| 658 * Adds the given master range to the given projection document. While the | |
| 659 * modification is processed, the viewer no longer handles projection | |
| 660 * changes, as it is causing them. | |
| 661 * | |
| 662 * @param projection the projection document | |
| 663 * @param offset the offset in the master document | |
| 664 * @param length the length in the master document | |
| 665 * @throws BadLocationException in case the specified range is invalid | |
| 666 * | |
| 667 * @see ProjectionDocument#addMasterDocumentRange(int, int) | |
| 668 */ | |
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669 private void addMasterDocumentRange(ProjectionDocument projection, int offset, int length) { |
| 129 | 670 |
| 671 if (fCommandQueue !is null) { | |
| 672 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.ADD, offset, length)); | |
| 673 } else { | |
| 674 try { | |
| 675 fHandleProjectionChanges= false; | |
| 676 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258 | |
| 677 // make sure the document range is strictly line based | |
| 678 int end= offset + length; | |
| 679 offset= toLineStart(projection.getMasterDocument(), offset, false); | |
| 680 length= toLineStart(projection.getMasterDocument(), end, true) - offset; | |
| 681 projection.addMasterDocumentRange(offset, length); | |
| 682 } finally { | |
| 683 fHandleProjectionChanges= true; | |
| 684 } | |
| 685 } | |
| 686 } | |
| 687 | |
| 688 /** | |
| 689 * Removes the given master range from the given projection document. While the | |
| 690 * modification is processed, the viewer no longer handles projection | |
| 691 * changes, as it is causing them. | |
| 692 * | |
| 693 * @param projection the projection document | |
| 694 * @param offset the offset in the master document | |
| 695 * @param length the length in the master document | |
| 696 * @throws BadLocationException in case the specified range is invalid | |
| 697 * | |
| 698 * @see ProjectionDocument#removeMasterDocumentRange(int, int) | |
| 699 */ | |
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700 private void removeMasterDocumentRange(ProjectionDocument projection, int offset, int length) { |
| 129 | 701 if (fCommandQueue !is null) { |
| 702 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.REMOVE, offset, length)); | |
| 703 } else { | |
| 704 try { | |
| 705 fHandleProjectionChanges= false; | |
| 706 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258 | |
| 707 // make sure the document range is strictly line based | |
| 708 int end= offset + length; | |
| 709 offset= toLineStart(projection.getMasterDocument(), offset, false); | |
| 710 length= toLineStart(projection.getMasterDocument(), end, true) - offset; | |
| 711 projection.removeMasterDocumentRange(offset, length); | |
| 712 } finally { | |
| 713 fHandleProjectionChanges= true; | |
| 714 } | |
| 715 } | |
| 716 } | |
| 145 | 717 |
| 129 | 718 /** |
| 719 * Returns the first line offset <= <code>offset</code>. If <code>testLastLine</code> | |
| 720 * is <code>true</code> and the offset is on last line then <code>offset</code> is returned. | |
| 145 | 721 * |
| 129 | 722 * @param document the document |
| 723 * @param offset the master document offset | |
| 724 * @param testLastLine <code>true</code> if the test for the last line should be performed | |
| 725 * @return the closest line offset >= <code>offset</code> | |
| 726 * @throws BadLocationException if the offset is invalid | |
| 727 * @since 3.2 | |
| 728 */ | |
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729 private int toLineStart(IDocument document, int offset, bool testLastLine) { |
| 129 | 730 if (document is null) |
| 731 return offset; | |
| 145 | 732 |
| 129 | 733 if (testLastLine && offset >= document.getLineInformationOfOffset(document.getLength() - 1).getOffset()) |
| 734 return offset; | |
| 145 | 735 |
| 129 | 736 return document.getLineInformationOfOffset(offset).getOffset(); |
| 737 } | |
| 738 | |
| 739 /* | |
| 740 * @see dwtx.jface.text.TextViewer#setVisibleRegion(int, int) | |
| 741 */ | |
| 742 public void setVisibleRegion(int start, int length) { | |
| 743 fWasProjectionEnabled= isProjectionMode(); | |
| 744 disableProjection(); | |
| 745 super.setVisibleRegion(start, length); | |
| 746 } | |
| 747 | |
| 748 /* | |
| 749 * @see dwtx.jface.text.TextViewer#setVisibleDocument(dwtx.jface.text.IDocument) | |
| 750 */ | |
| 751 protected void setVisibleDocument(IDocument document) { | |
| 752 if (!isProjectionMode()) { | |
| 753 super.setVisibleDocument(document); | |
| 754 return; | |
| 755 } | |
| 756 | |
| 757 // In projection mode we don't want to throw away the find/replace document adapter | |
| 758 FindReplaceDocumentAdapter adapter= fFindReplaceDocumentAdapter; | |
| 759 super.setVisibleDocument(document); | |
| 760 fFindReplaceDocumentAdapter= adapter; | |
| 761 } | |
| 762 | |
| 763 /* | |
| 764 * @see dwtx.jface.text.TextViewer#resetVisibleRegion() | |
| 765 */ | |
| 766 public void resetVisibleRegion() { | |
| 767 super.resetVisibleRegion(); | |
| 768 if (fWasProjectionEnabled) | |
| 769 enableProjection(); | |
| 770 } | |
| 771 | |
| 772 /* | |
| 773 * @see dwtx.jface.text.ITextViewer#getVisibleRegion() | |
| 774 */ | |
| 775 public IRegion getVisibleRegion() { | |
| 776 disableProjection(); | |
| 777 IRegion visibleRegion= getModelCoverage(); | |
| 778 if (visibleRegion is null) | |
| 779 visibleRegion= new Region(0, 0); | |
| 780 | |
| 781 return visibleRegion; | |
| 782 } | |
| 783 | |
| 784 /* | |
| 785 * @see dwtx.jface.text.ITextViewer#overlapsWithVisibleRegion(int,int) | |
| 786 */ | |
| 787 public bool overlapsWithVisibleRegion(int offset, int length) { | |
| 788 disableProjection(); | |
| 789 IRegion coverage= getModelCoverage(); | |
| 790 if (coverage is null) | |
| 791 return false; | |
| 792 | |
| 793 bool appending= (offset is coverage.getOffset() + coverage.getLength()) && length is 0; | |
| 794 return appending || TextUtilities.overlaps(coverage, new Region(offset, length)); | |
| 795 } | |
| 796 | |
| 797 /** | |
| 798 * Replace the visible document with the given document. Maintains the | |
| 799 * scroll offset and the selection. | |
| 800 * | |
| 801 * @param slave the visible document | |
| 802 */ | |
| 803 private void replaceVisibleDocument(IDocument slave) { | |
| 804 if (fReplaceVisibleDocumentExecutionTrigger !is null) { | |
| 805 ReplaceVisibleDocumentExecutor executor= new ReplaceVisibleDocumentExecutor(slave); | |
| 806 executor.install(fReplaceVisibleDocumentExecutionTrigger); | |
| 807 } else | |
| 808 executeReplaceVisibleDocument(slave); | |
| 809 } | |
| 810 | |
| 811 | |
| 812 private void executeReplaceVisibleDocument(IDocument visibleDocument) { | |
| 813 StyledText textWidget= getTextWidget(); | |
| 814 try { | |
| 815 if (textWidget !is null && !textWidget.isDisposed()) | |
| 816 textWidget.setRedraw(false); | |
| 817 | |
| 818 int topIndex= getTopIndex(); | |
| 819 Point selection= getSelectedRange(); | |
| 820 setVisibleDocument(visibleDocument); | |
| 821 Point currentSelection= getSelectedRange(); | |
| 822 if (currentSelection.x !is selection.x || currentSelection.y !is selection.y) | |
| 823 setSelectedRange(selection.x, selection.y); | |
| 824 setTopIndex(topIndex); | |
| 825 | |
| 826 } finally { | |
| 827 if (textWidget !is null && !textWidget.isDisposed()) | |
| 828 textWidget.setRedraw(true); | |
| 829 } | |
| 830 } | |
| 831 | |
| 832 /** | |
| 833 * Hides the given range by collapsing it. If requested, a redraw request is issued. | |
| 834 * | |
| 835 * @param offset the offset of the range to hide | |
| 836 * @param length the length of the range to hide | |
| 837 * @param fireRedraw <code>true</code> if a redraw request should be issued, <code>false</code> otherwise | |
| 838 * @throws BadLocationException in case the range is invalid | |
| 839 */ | |
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840 private void collapse(int offset, int length, bool fireRedraw) { |
| 129 | 841 ProjectionDocument projection= null; |
| 842 | |
| 843 IDocument visibleDocument= getVisibleDocument(); | |
| 138 | 844 if ( cast(ProjectionDocument)visibleDocument ) |
| 134 | 845 projection= cast(ProjectionDocument) visibleDocument; |
| 129 | 846 else { |
| 847 IDocument master= getDocument(); | |
| 848 IDocument slave= createSlaveDocument(getDocument()); | |
| 138 | 849 if ( cast(ProjectionDocument)slave ) { |
| 134 | 850 projection= cast(ProjectionDocument) slave; |
| 129 | 851 addMasterDocumentRange(projection, 0, master.getLength()); |
| 852 replaceVisibleDocument(projection); | |
| 853 } | |
| 854 } | |
| 855 | |
| 856 if (projection !is null) | |
| 857 removeMasterDocumentRange(projection, offset, length); | |
| 858 | |
| 859 if (projection !is null && fireRedraw) { | |
| 860 // repaint line above to get the folding box | |
| 861 IDocument document= getDocument(); | |
| 862 int line= document.getLineOfOffset(offset); | |
| 863 if (line > 0) { | |
| 864 IRegion info= document.getLineInformation(line - 1); | |
| 865 internalInvalidateTextPresentation(info.getOffset(), info.getLength()); | |
| 866 } | |
| 867 } | |
| 868 } | |
| 869 | |
| 870 /** | |
| 871 * Makes the given range visible again while not changing the folding state of any contained | |
| 872 * ranges. If requested, a redraw request is issued. | |
| 145 | 873 * |
| 129 | 874 * @param offset the offset of the range to be expanded |
| 875 * @param length the length of the range to be expanded | |
| 876 * @param fireRedraw <code>true</code> if a redraw request should be issued, | |
| 877 * <code>false</code> otherwise | |
| 878 * @throws BadLocationException in case the range is invalid | |
| 879 */ | |
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880 private void expand(int offset, int length, bool fireRedraw) { |
| 129 | 881 IDocument slave= getVisibleDocument(); |
| 138 | 882 if ( cast(ProjectionDocument)slave ) { |
| 134 | 883 ProjectionDocument projection= cast(ProjectionDocument) slave; |
| 129 | 884 |
| 885 // expand | |
| 886 addMasterDocumentRange(projection, offset, length); | |
| 887 | |
| 888 // collapse contained regions | |
| 889 ProjectionAnnotation[] collapsed= computeCollapsedNestedAnnotations(offset, length); | |
| 890 if (collapsed !is null) { | |
| 891 for (int i= 0; i < collapsed.length; i++) { | |
| 892 IRegion[] regions= computeCollapsedRegions(fProjectionAnnotationModel.getPosition(collapsed[i])); | |
| 893 if (regions !is null) | |
| 894 for (int j= 0; j < regions.length; j++) | |
| 895 removeMasterDocumentRange(projection, regions[j].getOffset(), regions[j].getLength()); | |
| 896 } | |
| 897 } | |
| 898 | |
| 899 // redraw if requested | |
| 900 if (fireRedraw) | |
| 901 internalInvalidateTextPresentation(offset, length); | |
| 902 } | |
| 903 } | |
| 904 | |
| 905 /** | |
| 906 * Processes the request for catch up with the annotation model in the UI thread. If the current | |
| 907 * thread is not the UI thread or there are pending catch up requests, a new request is posted. | |
| 908 * | |
| 909 * @param event the annotation model event | |
| 910 */ | |
| 911 protected final void processCatchupRequest(AnnotationModelEvent event) { | |
| 912 if (Display.getCurrent() !is null) { | |
| 913 bool run= false; | |
| 914 synchronized (fLock) { | |
| 915 run= fPendingRequests.isEmpty(); | |
| 916 } | |
| 917 if (run) { | |
| 918 | |
| 919 try { | |
| 920 catchupWithProjectionAnnotationModel(event); | |
| 921 } catch (BadLocationException x) { | |
| 162 | 922 throw new IllegalArgumentException(null); |
| 129 | 923 } |
| 924 | |
| 925 } else | |
| 926 postCatchupRequest(event); | |
| 927 } else { | |
| 928 postCatchupRequest(event); | |
| 929 } | |
| 930 } | |
| 931 | |
| 932 /** | |
| 933 * Posts the request for catch up with the annotation model into the UI thread. | |
| 934 * | |
| 935 * @param event the annotation model event | |
| 936 */ | |
| 158 | 937 protected final void postCatchupRequest(AnnotationModelEvent event) { |
| 129 | 938 synchronized (fLock) { |
| 939 fPendingRequests.add(event); | |
| 940 if (fPendingRequests.size() is 1) { | |
| 941 StyledText widget= getTextWidget(); | |
| 942 if (widget !is null) { | |
| 943 Display display= widget.getDisplay(); | |
| 944 if (display !is null) { | |
| 135 | 945 display.asyncExec(new class() Runnable { |
| 129 | 946 public void run() { |
| 947 try { | |
| 948 while (true) { | |
| 949 AnnotationModelEvent ame= null; | |
| 950 synchronized (fLock) { | |
| 951 if (fPendingRequests.size() is 0) | |
| 952 return; | |
| 134 | 953 ame= cast(AnnotationModelEvent) fPendingRequests.remove(0); |
| 129 | 954 } |
| 955 catchupWithProjectionAnnotationModel(ame); | |
| 956 } | |
| 957 } catch (BadLocationException x) { | |
| 958 try { | |
| 959 catchupWithProjectionAnnotationModel(null); | |
| 960 } catch (BadLocationException x1) { | |
| 162 | 961 throw new IllegalArgumentException(null); |
| 129 | 962 } finally { |
| 963 synchronized (fLock) { | |
| 964 fPendingRequests.clear(); | |
| 965 } | |
| 966 } | |
| 967 } | |
| 968 } | |
| 969 }); | |
| 970 } | |
| 971 } | |
| 972 } | |
| 973 } | |
| 974 } | |
| 145 | 975 |
| 129 | 976 /** |
| 977 * Tests whether the visible document's master document | |
| 978 * is identical to this viewer's document. | |
| 145 | 979 * |
| 129 | 980 * @return <code>true</code> if the visible document's master is |
| 981 * identical to this viewer's document | |
| 982 * @since 3.1 | |
| 983 */ | |
| 984 private bool isVisibleMasterDocumentSameAsDocument() { | |
| 985 IDocument visibleDocument= getVisibleDocument(); | |
| 138 | 986 return ( cast(ProjectionDocument)visibleDocument ) && (cast(ProjectionDocument)visibleDocument).getMasterDocument() is getDocument(); |
| 129 | 987 } |
| 988 | |
| 989 /** | |
| 990 * Adapts the slave visual document of this viewer to the changes described | |
| 991 * in the annotation model event. When the event is <code>null</code>, | |
| 992 * this is identical to a world change event. | |
| 993 * | |
| 994 * @param event the annotation model event or <code>null</code> | |
| 995 * @exception BadLocationException in case the annotation model event is no longer in synchronization with the document | |
| 996 */ | |
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997 private void catchupWithProjectionAnnotationModel(AnnotationModelEvent event) { |
| 145 | 998 |
| 129 | 999 if (event is null || !isVisibleMasterDocumentSameAsDocument()) { |
| 1000 | |
| 1001 fPendingAnnotationWorldChange= false; | |
| 1002 reinitializeProjection(); | |
| 1003 | |
| 1004 } else if (event.isWorldChange()) { | |
| 1005 | |
| 1006 if (event.isValid()) { | |
| 1007 fPendingAnnotationWorldChange= false; | |
| 1008 reinitializeProjection(); | |
| 1009 } else | |
| 1010 fPendingAnnotationWorldChange= true; | |
| 1011 | |
| 1012 } else if (fPendingAnnotationWorldChange) { | |
| 1013 if (event.isValid()) { | |
| 1014 fPendingAnnotationWorldChange= false; | |
| 1015 reinitializeProjection(); | |
| 1016 } | |
| 1017 } else { | |
| 145 | 1018 |
| 129 | 1019 Annotation[] addedAnnotations= event.getAddedAnnotations(); |
| 1020 Annotation[] changedAnnotation= event.getChangedAnnotations(); | |
| 1021 Annotation[] removedAnnotations= event.getRemovedAnnotations(); | |
| 145 | 1022 |
| 129 | 1023 fCommandQueue= new ProjectionCommandQueue(); |
| 145 | 1024 |
| 129 | 1025 bool isRedrawing= redraws(); |
| 1026 int topIndex= isRedrawing ? getTopIndex() : -1; | |
| 145 | 1027 |
| 129 | 1028 processDeletions(event, removedAnnotations, true); |
| 1029 List coverage= new ArrayList(); | |
| 1030 processChanges(addedAnnotations, true, coverage); | |
| 1031 processChanges(changedAnnotation, true, coverage); | |
| 145 | 1032 |
| 129 | 1033 ProjectionCommandQueue commandQueue= fCommandQueue; |
| 1034 fCommandQueue= null; | |
| 145 | 1035 |
| 129 | 1036 if (commandQueue.passedRedrawCostsThreshold()) { |
| 1037 setRedraw(false); | |
| 1038 try { | |
| 1039 executeProjectionCommands(commandQueue, false); | |
| 1040 } catch (IllegalArgumentException x) { | |
| 1041 reinitializeProjection(); | |
| 1042 } finally { | |
| 1043 setRedraw(true, topIndex); | |
| 1044 } | |
| 1045 } else { | |
| 1046 try { | |
| 1047 bool fireRedraw= !commandQueue.passedInvalidationCostsThreshold(); | |
| 1048 executeProjectionCommands(commandQueue, fireRedraw); | |
| 1049 if (!fireRedraw) | |
| 1050 invalidateTextPresentation(); | |
| 1051 } catch (IllegalArgumentException x) { | |
| 1052 reinitializeProjection(); | |
| 1053 } | |
| 1054 } | |
| 1055 } | |
| 1056 } | |
| 1057 | |
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1058 private void executeProjectionCommands(ProjectionCommandQueue commandQueue, bool fireRedraw) { |
| 129 | 1059 |
| 1060 ProjectionCommand command; | |
| 1061 Iterator e= commandQueue.iterator(); | |
| 1062 while (e.hasNext()) { | |
| 134 | 1063 command= cast(ProjectionCommand) e.next(); |
| 129 | 1064 switch (command.fType) { |
| 1065 case ProjectionCommand.ADD: | |
| 1066 addMasterDocumentRange(command.fProjection, command.fOffset, command.fLength); | |
| 1067 break; | |
| 1068 case ProjectionCommand.REMOVE: | |
| 1069 removeMasterDocumentRange(command.fProjection, command.fOffset, command.fLength); | |
| 1070 break; | |
| 1071 case ProjectionCommand.INVALIDATE_PRESENTATION: | |
| 1072 if (fireRedraw) | |
| 1073 invalidateTextPresentation(command.fOffset, command.fLength); | |
| 1074 break; | |
| 1075 } | |
| 1076 } | |
| 1077 | |
| 1078 commandQueue.clear(); | |
| 1079 } | |
| 1080 | |
| 1081 private bool covers(int offset, int length, Position position) { | |
| 1082 if (!(position.offset is offset && position.length is length) && !position.isDeleted()) | |
| 1083 return offset <= position.getOffset() && position.getOffset() + position.getLength() <= offset + length; | |
| 1084 return false; | |
| 1085 } | |
| 1086 | |
| 1087 private ProjectionAnnotation[] computeCollapsedNestedAnnotations(int offset, int length) { | |
| 1088 List annotations= new ArrayList(5); | |
| 1089 Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1090 while (e.hasNext()) { | |
| 134 | 1091 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1092 if (annotation.isCollapsed()) { |
| 1093 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 1094 if (position is null) { | |
| 1095 // annotation might already be deleted, we will be informed later on about this deletion | |
| 1096 continue; | |
| 1097 } | |
| 1098 if (covers(offset, length, position)) | |
| 1099 annotations.add(annotation); | |
| 1100 } | |
| 1101 } | |
| 1102 | |
| 1103 if (annotations.size() > 0) { | |
| 1104 ProjectionAnnotation[] result= new ProjectionAnnotation[annotations.size()]; | |
| 1105 annotations.toArray(result); | |
| 1106 return result; | |
| 1107 } | |
| 1108 | |
| 1109 return null; | |
| 1110 } | |
| 1111 | |
| 1112 private void internalInvalidateTextPresentation(int offset, int length) { | |
| 1113 if (fCommandQueue !is null) { | |
| 1114 fCommandQueue.add(new ProjectionCommand(offset, length)); | |
| 1115 } else { | |
| 1116 invalidateTextPresentation(offset, length); | |
| 1117 } | |
| 1118 } | |
| 1119 | |
| 1120 /* | |
| 1121 * We pass the removed annotation into this method for performance reasons only. Otherwise, they could be fetch from the event. | |
| 1122 */ | |
|
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1123 private void processDeletions(AnnotationModelEvent event, Annotation[] removedAnnotations, bool fireRedraw) { |
| 129 | 1124 for (int i= 0; i < removedAnnotations.length; i++) { |
| 134 | 1125 ProjectionAnnotation annotation= cast(ProjectionAnnotation) removedAnnotations[i]; |
| 129 | 1126 if (annotation.isCollapsed()) { |
| 1127 Position expanded= event.getPositionOfRemovedAnnotation(annotation); | |
| 1128 expand(expanded.getOffset(), expanded.getLength(), fireRedraw); | |
| 1129 } | |
| 1130 } | |
| 1131 } | |
| 1132 | |
| 1133 /** | |
| 1134 * Computes the region that must be collapsed when the given position is the | |
| 1135 * position of an expanded projection annotation. | |
| 1136 * | |
| 1137 * @param position the position | |
| 1138 * @return the range that must be collapsed | |
| 1139 */ | |
| 1140 public IRegion computeCollapsedRegion(Position position) { | |
| 1141 try { | |
| 1142 IDocument document= getDocument(); | |
| 1143 if (document is null) | |
| 1144 return null; | |
| 145 | 1145 |
| 129 | 1146 int line= document.getLineOfOffset(position.getOffset()); |
| 1147 int offset= document.getLineOffset(line + 1); | |
| 1148 | |
| 1149 int length= position.getLength() - (offset - position.getOffset()); | |
| 1150 if (length > 0) | |
| 1151 return new Region(offset, length); | |
| 1152 } catch (BadLocationException x) { | |
| 1153 } | |
| 1154 | |
| 1155 return null; | |
| 1156 } | |
| 1157 | |
| 1158 /** | |
| 1159 * Computes the regions that must be collapsed when the given position is | |
| 1160 * the position of an expanded projection annotation. | |
| 1161 * | |
| 1162 * @param position the position | |
| 1163 * @return the ranges that must be collapsed, or <code>null</code> if | |
| 1164 * there are none | |
| 1165 * @since 3.1 | |
| 1166 */ | |
| 1167 IRegion[] computeCollapsedRegions(Position position) { | |
| 1168 try { | |
| 1169 IDocument document= getDocument(); | |
| 1170 if (document is null) | |
| 1171 return null; | |
| 1172 | |
| 138 | 1173 if ( cast(IProjectionPosition)position ) { |
| 134 | 1174 IProjectionPosition projPosition= cast(IProjectionPosition) position; |
| 129 | 1175 return projPosition.computeProjectionRegions(document); |
| 1176 } | |
| 1177 | |
| 1178 int line= document.getLineOfOffset(position.getOffset()); | |
| 1179 int offset= document.getLineOffset(line + 1); | |
| 1180 | |
| 1181 int length= position.getLength() - (offset - position.getOffset()); | |
| 1182 if (length > 0) | |
| 145 | 1183 return [new Region(offset, length)]; |
| 129 | 1184 |
| 1185 return null; | |
| 1186 } catch (BadLocationException x) { | |
| 1187 return null; | |
| 1188 } | |
| 1189 } | |
| 1190 | |
| 1191 /** | |
| 1192 * Computes the collapsed region anchor for the given position. Assuming | |
| 1193 * that the position is the position of an expanded projection annotation, | |
| 1194 * the anchor is the region that is still visible after the projection | |
| 1195 * annotation has been collapsed. | |
| 1196 * | |
| 1197 * @param position the position | |
| 1198 * @return the collapsed region anchor | |
| 1199 */ | |
| 1200 public Position computeCollapsedRegionAnchor(Position position) { | |
| 1201 try { | |
| 1202 IDocument document= getDocument(); | |
| 1203 if (document is null) | |
| 1204 return null; | |
| 1205 | |
| 1206 int captionOffset= position.getOffset(); | |
| 138 | 1207 if ( cast(IProjectionPosition)position ) |
| 134 | 1208 captionOffset+= (cast(IProjectionPosition) position).computeCaptionOffset(document); |
| 129 | 1209 |
| 1210 IRegion lineInfo= document.getLineInformationOfOffset(captionOffset); | |
| 1211 return new Position(lineInfo.getOffset() + lineInfo.getLength(), 0); | |
| 1212 } catch (BadLocationException x) { | |
| 1213 } | |
| 1214 return null; | |
| 1215 } | |
| 1216 | |
|
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1217 private void processChanges(Annotation[] annotations, bool fireRedraw, List coverage) { |
| 129 | 1218 for (int i= 0; i < annotations.length; i++) { |
| 134 | 1219 ProjectionAnnotation annotation= cast(ProjectionAnnotation) annotations[i]; |
| 129 | 1220 Position position= fProjectionAnnotationModel.getPosition(annotation); |
| 1221 | |
| 1222 if (position is null) | |
| 1223 continue; | |
| 1224 | |
| 1225 if (!covers(coverage, position)) { | |
| 1226 if (annotation.isCollapsed()) { | |
| 1227 coverage.add(position); | |
| 1228 IRegion[] regions= computeCollapsedRegions(position); | |
| 1229 if (regions !is null) | |
| 1230 for (int j= 0; j < regions.length; j++) | |
| 1231 collapse(regions[j].getOffset(), regions[j].getLength(), fireRedraw); | |
| 1232 } else { | |
| 1233 expand(position.getOffset(), position.getLength(), fireRedraw); | |
| 1234 } | |
| 1235 } | |
| 1236 } | |
| 1237 } | |
| 1238 | |
| 1239 private bool covers(List coverage, Position position) { | |
| 1240 Iterator e= coverage.iterator(); | |
| 1241 while (e.hasNext()) { | |
| 134 | 1242 Position p= cast(Position) e.next(); |
| 129 | 1243 if (p.getOffset() <= position.getOffset() && position.getOffset() + position.getLength() <= p.getOffset() + p.getLength()) |
| 1244 return true; | |
| 1245 } | |
| 1246 return false; | |
| 1247 } | |
| 1248 | |
| 1249 /** | |
| 1250 * Forces this viewer to throw away any old state and to initialize its content | |
| 1251 * from its projection annotation model. | |
| 1252 * | |
| 1253 * @throws BadLocationException in case something goes wrong during initialization | |
| 1254 */ | |
|
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1255 public final void reinitializeProjection() { |
| 129 | 1256 |
| 1257 ProjectionDocument projection= null; | |
| 1258 | |
| 1259 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 1260 if (manager !is null) { | |
| 1261 IDocument master= getDocument(); | |
| 1262 if (master !is null) { | |
| 1263 IDocument slave= manager.createSlaveDocument(master); | |
| 138 | 1264 if ( cast(ProjectionDocument)slave ) { |
| 134 | 1265 projection= cast(ProjectionDocument) slave; |
| 129 | 1266 addMasterDocumentRange(projection, 0, master.getLength()); |
| 1267 } | |
| 1268 } | |
| 1269 } | |
| 1270 | |
| 1271 if (projection !is null) { | |
| 1272 Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1273 while (e.hasNext()) { | |
| 134 | 1274 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1275 if (annotation.isCollapsed()) { |
| 1276 Position position= fProjectionAnnotationModel.getPosition(annotation); | |
| 1277 if (position !is null) { | |
| 1278 IRegion[] regions= computeCollapsedRegions(position); | |
| 1279 if (regions !is null) | |
| 1280 for (int i= 0; i < regions.length; i++) | |
| 1281 removeMasterDocumentRange(projection, regions[i].getOffset(), regions[i].getLength()); | |
| 1282 } | |
| 1283 } | |
| 1284 } | |
| 1285 | |
| 1286 } | |
| 1287 | |
| 1288 replaceVisibleDocument(projection); | |
| 1289 } | |
| 1290 | |
| 1291 /* | |
| 1292 * @see dwtx.jface.text.TextViewer#handleVerifyEvent(dwt.events.VerifyEvent) | |
| 1293 */ | |
| 1294 protected void handleVerifyEvent(VerifyEvent e) { | |
| 1295 IRegion modelRange= event2ModelRange(e); | |
| 1296 if (exposeModelRange(modelRange)) | |
| 1297 e.doit= false; | |
| 1298 else | |
| 1299 super.handleVerifyEvent(e); | |
| 1300 } | |
| 1301 | |
| 1302 /** | |
| 1303 * Adds the give column as last column to this viewer's vertical ruler. | |
| 1304 * | |
| 1305 * @param column the column to be added | |
| 1306 */ | |
| 1307 public void addVerticalRulerColumn(IVerticalRulerColumn column) { | |
| 1308 IVerticalRuler ruler= getVerticalRuler(); | |
| 138 | 1309 if ( cast(CompositeRuler)ruler ) { |
| 134 | 1310 CompositeRuler compositeRuler= cast(CompositeRuler) ruler; |
| 129 | 1311 compositeRuler.addDecorator(99, column); |
| 1312 } | |
| 1313 } | |
| 1314 | |
| 1315 /** | |
| 1316 * Removes the give column from this viewer's vertical ruler. | |
| 1317 * | |
| 1318 * @param column the column to be removed | |
| 1319 */ | |
| 1320 public void removeVerticalRulerColumn(IVerticalRulerColumn column) { | |
| 1321 IVerticalRuler ruler= getVerticalRuler(); | |
| 138 | 1322 if ( cast(CompositeRuler)ruler ) { |
| 134 | 1323 CompositeRuler compositeRuler= cast(CompositeRuler) ruler; |
| 129 | 1324 compositeRuler.removeDecorator(column); |
| 1325 } | |
| 1326 } | |
| 1327 | |
| 1328 /* | |
| 1329 * @see dwtx.jface.text.ITextViewerExtension5#exposeModelRange(dwtx.jface.text.IRegion) | |
| 1330 */ | |
| 1331 public bool exposeModelRange(IRegion modelRange) { | |
| 1332 if (isProjectionMode()) | |
| 1333 return fProjectionAnnotationModel.expandAll(modelRange.getOffset(), modelRange.getLength()); | |
| 1334 | |
| 1335 if (!overlapsWithVisibleRegion(modelRange.getOffset(), modelRange.getLength())) { | |
| 1336 resetVisibleRegion(); | |
| 1337 return true; | |
| 1338 } | |
| 1339 | |
| 1340 return false; | |
| 1341 } | |
| 1342 | |
| 1343 /* | |
| 1344 * @see dwtx.jface.text.source.SourceViewer#setRangeIndication(int, int, bool) | |
| 1345 */ | |
| 1346 public void setRangeIndication(int offset, int length, bool moveCursor) { | |
| 1347 IRegion rangeIndication= getRangeIndication(); | |
| 1348 if (moveCursor && fProjectionAnnotationModel !is null && (rangeIndication is null || offset !is rangeIndication.getOffset() || length !is rangeIndication.getLength())) { | |
| 1349 List expand= new ArrayList(2); | |
| 1350 // expand the immediate effected collapsed regions | |
| 1351 Iterator iterator= fProjectionAnnotationModel.getAnnotationIterator(); | |
| 1352 while (iterator.hasNext()) { | |
| 134 | 1353 ProjectionAnnotation annotation= cast(ProjectionAnnotation)iterator.next(); |
| 129 | 1354 if (annotation.isCollapsed() && willAutoExpand(fProjectionAnnotationModel.getPosition(annotation), offset, length)) |
| 1355 expand.add(annotation); | |
| 1356 } | |
| 1357 | |
| 1358 if (!expand.isEmpty()) { | |
| 1359 Iterator e= expand.iterator(); | |
| 1360 while (e.hasNext()) | |
| 134 | 1361 fProjectionAnnotationModel.expand(cast(Annotation)e.next()); |
| 129 | 1362 } |
| 1363 } | |
| 1364 super.setRangeIndication(offset, length, moveCursor); | |
| 1365 } | |
| 1366 | |
| 1367 private bool willAutoExpand(Position position, int offset, int length) { | |
| 1368 if (position is null || position.isDeleted()) | |
| 1369 return false; | |
| 1370 // right or left boundary | |
| 1371 if (position.getOffset() is offset || position.getOffset() + position.getLength() is offset + length) | |
| 1372 return true; | |
| 1373 // completely embedded in given position | |
| 1374 if (position.getOffset() < offset && offset + length < position.getOffset() + position.getLength()) | |
| 1375 return true; | |
| 1376 return false; | |
| 1377 } | |
| 1378 | |
| 1379 /* | |
| 1380 * @see dwtx.jface.text.source.SourceViewer#handleDispose() | |
| 1381 * @since 3.0 | |
| 1382 */ | |
| 1383 protected void handleDispose() { | |
| 1384 fWasProjectionEnabled= false; | |
| 1385 super.handleDispose(); | |
| 1386 } | |
| 1387 | |
| 1388 /* | |
| 1389 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 1390 */ | |
| 1391 protected void handleVisibleDocumentChanged(DocumentEvent event) { | |
| 143 | 1392 if (fHandleProjectionChanges && cast(ProjectionDocumentEvent)event && isProjectionMode()) { |
| 134 | 1393 ProjectionDocumentEvent e= cast(ProjectionDocumentEvent) event; |
| 129 | 1394 |
| 1395 DocumentEvent master= e.getMasterEvent(); | |
| 1396 if (master !is null) | |
| 1397 fReplaceVisibleDocumentExecutionTrigger= master.getDocument(); | |
| 1398 | |
| 1399 try { | |
| 1400 | |
| 1401 int replaceLength= e.getText() is null ? 0 : e.getText().length(); | |
| 1402 if (ProjectionDocumentEvent.PROJECTION_CHANGE is e.getChangeType()) { | |
| 1403 if (e.getLength() is 0 && replaceLength !is 0) | |
| 1404 fProjectionAnnotationModel.expandAll(e.getMasterOffset(), e.getMasterLength()); | |
| 1405 } else if (master !is null && (replaceLength > 0 || fDeletedLines > 1)) { | |
| 1406 try { | |
| 1407 int numberOfLines= e.getDocument().getNumberOfLines(e.getOffset(), replaceLength); | |
| 1408 if (numberOfLines > 1 || fDeletedLines > 1) | |
| 1409 fProjectionAnnotationModel.expandAll(master.getOffset(), master.getLength()); | |
| 1410 } catch (BadLocationException x) { | |
| 1411 } | |
| 1412 } | |
| 1413 | |
| 1414 } finally { | |
| 1415 fReplaceVisibleDocumentExecutionTrigger= null; | |
| 1416 } | |
| 1417 | |
| 1418 } | |
| 1419 } | |
| 1420 | |
| 1421 /* | |
| 1422 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent) | |
| 1423 * @since 3.1 | |
| 1424 */ | |
| 1425 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { | |
| 143 | 1426 if (fHandleProjectionChanges && cast(ProjectionDocumentEvent)event && isProjectionMode()) { |
| 129 | 1427 int deletedLines; |
| 1428 try { | |
| 1429 deletedLines= event.getDocument().getNumberOfLines(event.getOffset(), event.getLength()); | |
| 1430 } catch (BadLocationException e1) { | |
| 1431 deletedLines= 0; | |
| 1432 } | |
| 1433 fDeletedLines= deletedLines; | |
| 1434 } | |
| 1435 } | |
| 1436 | |
| 1437 /* | |
| 1438 * @see dwtx.jface.text.ITextViewerExtension5#getCoveredModelRanges(dwtx.jface.text.IRegion) | |
| 1439 */ | |
| 1440 public IRegion[] getCoveredModelRanges(IRegion modelRange) { | |
| 1441 if (fInformationMapping is null) | |
| 145 | 1442 return [ new Region(modelRange.getOffset(), modelRange.getLength()) ]; |
| 129 | 1443 |
| 138 | 1444 if ( cast(IDocumentInformationMappingExtension)fInformationMapping ) { |
| 134 | 1445 IDocumentInformationMappingExtension extension= cast(IDocumentInformationMappingExtension) fInformationMapping; |
| 129 | 1446 try { |
| 1447 return extension.getExactCoverage(modelRange); | |
| 1448 } catch (BadLocationException x) { | |
| 1449 } | |
| 1450 } | |
| 1451 | |
| 1452 return null; | |
| 1453 } | |
| 1454 | |
| 1455 /* | |
| 1456 * @see dwtx.jface.text.ITextOperationTarget#doOperation(int) | |
| 1457 */ | |
| 1458 public void doOperation(int operation) { | |
| 1459 switch (operation) { | |
| 1460 case TOGGLE: | |
| 1461 if (canDoOperation(TOGGLE)) { | |
| 1462 if (!isProjectionMode()) { | |
| 1463 enableProjection(); | |
| 1464 } else { | |
| 1465 expandAll(); | |
| 1466 disableProjection(); | |
| 1467 } | |
| 1468 return; | |
| 1469 } | |
| 1470 } | |
| 1471 | |
| 1472 if (!isProjectionMode()) { | |
| 1473 super.doOperation(operation); | |
| 1474 return; | |
| 1475 } | |
| 1476 | |
| 1477 StyledText textWidget= getTextWidget(); | |
| 1478 if (textWidget is null) | |
| 1479 return; | |
| 1480 | |
| 1481 Point selection= null; | |
| 1482 switch (operation) { | |
| 1483 | |
| 1484 case CUT: | |
| 1485 | |
| 1486 if (redraws()) { | |
| 1487 selection= getSelectedRange(); | |
| 1488 if (exposeModelRange(new Region(selection.x, selection.y))) | |
| 1489 return; | |
| 145 | 1490 |
| 129 | 1491 if (selection.y is 0) |
| 1492 copyMarkedRegion(true); | |
| 1493 else | |
| 1494 copyToClipboard(selection.x, selection.y, true, textWidget); | |
| 1495 | |
| 1496 selection= textWidget.getSelectionRange(); | |
| 1497 fireSelectionChanged(selection.x, selection.y); | |
| 1498 } | |
| 1499 break; | |
| 1500 | |
| 1501 case COPY: | |
| 1502 | |
| 1503 if (redraws()) { | |
| 1504 selection= getSelectedRange(); | |
| 1505 if (selection.y is 0) | |
| 1506 copyMarkedRegion(false); | |
| 1507 else | |
| 1508 copyToClipboard(selection.x, selection.y, false, textWidget); | |
| 1509 } | |
| 1510 break; | |
| 1511 | |
| 1512 case DELETE: | |
| 1513 | |
| 1514 if (redraws()) { | |
| 1515 try { | |
| 1516 selection= getSelectedRange(); | |
| 1517 Point widgetSelection= textWidget.getSelectionRange(); | |
| 1518 if (selection.y is 0 || selection.y is widgetSelection.y) | |
| 1519 getTextWidget().invokeAction(ST.DELETE_NEXT); | |
| 1520 else | |
| 1521 deleteTextRange(selection.x, selection.y, textWidget); | |
| 1522 | |
| 1523 selection= textWidget.getSelectionRange(); | |
| 1524 fireSelectionChanged(selection.x, selection.y); | |
| 1525 | |
| 1526 } catch (BadLocationException x) { | |
| 1527 // ignore | |
| 1528 } | |
| 1529 } | |
| 1530 break; | |
| 1531 | |
| 1532 | |
| 1533 case EXPAND_ALL: | |
| 1534 if (redraws()) | |
| 1535 expandAll(); | |
| 1536 break; | |
| 1537 | |
| 1538 case EXPAND: | |
| 1539 if (redraws()) { | |
| 1540 expand(); | |
| 1541 } | |
| 1542 break; | |
| 1543 | |
| 1544 case COLLAPSE_ALL: | |
| 1545 if (redraws()) | |
| 1546 collapseAll(); | |
| 1547 break; | |
| 145 | 1548 |
| 129 | 1549 case COLLAPSE: |
| 1550 if (redraws()) { | |
| 1551 collapse(); | |
| 1552 } | |
| 1553 break; | |
| 1554 | |
| 1555 default: | |
| 1556 super.doOperation(operation); | |
| 1557 } | |
| 1558 } | |
| 1559 | |
| 1560 /* | |
| 1561 * @see dwtx.jface.text.source.SourceViewer#canDoOperation(int) | |
| 1562 */ | |
| 1563 public bool canDoOperation(int operation) { | |
| 1564 | |
| 1565 switch (operation) { | |
| 1566 case COLLAPSE: | |
| 1567 case COLLAPSE_ALL: | |
| 1568 case EXPAND: | |
| 1569 case EXPAND_ALL: | |
| 1570 return isProjectionMode(); | |
| 1571 case TOGGLE: | |
| 1572 return isProjectionMode() || !isSegmented(); | |
| 1573 } | |
| 1574 | |
| 1575 return super.canDoOperation(operation); | |
| 1576 } | |
| 1577 | |
| 1578 private bool isSegmented() { | |
| 1579 IDocument document= getDocument(); | |
| 1580 int length= document is null ? 0 : document.getLength(); | |
| 1581 IRegion visible= getModelCoverage(); | |
| 162 | 1582 bool isSegmented= visible !is null && !(cast(Object)visible).opEquals(new Region(0, length)); |
| 129 | 1583 return isSegmented; |
| 1584 } | |
| 1585 | |
| 1586 private IRegion getMarkedRegion() { | |
| 1587 if (getTextWidget() is null) | |
| 1588 return null; | |
| 1589 | |
| 1590 if (fMarkPosition is null || fMarkPosition.isDeleted()) | |
| 1591 return null; | |
| 1592 | |
| 1593 int start= fMarkPosition.getOffset(); | |
| 1594 int end= getSelectedRange().x; | |
| 1595 | |
| 1596 return start > end ? new Region (end, start - end) : new Region(start, end - start); | |
| 1597 } | |
| 1598 | |
| 1599 /* | |
| 1600 * @see dwtx.jface.text.TextViewer#copyMarkedRegion(bool) | |
| 1601 */ | |
| 145 | 1602 protected void copyMarkedRegion(bool delete_) { |
| 129 | 1603 IRegion markedRegion= getMarkedRegion(); |
| 1604 if (markedRegion !is null) | |
| 145 | 1605 copyToClipboard(markedRegion.getOffset(), markedRegion.getLength(), delete_, getTextWidget()); |
| 129 | 1606 } |
| 1607 | |
| 145 | 1608 private void copyToClipboard(int offset, int length, bool delete_, StyledText textWidget) { |
| 129 | 1609 |
| 1610 String copyText= null; | |
| 1611 | |
| 1612 try { | |
| 1613 IDocument document= getDocument(); | |
| 1614 copyText= document.get(offset, length); | |
| 1615 } catch (BadLocationException ex) { | |
| 1616 // XXX: should log here, but JFace Text has no Log | |
| 1617 // As a fallback solution let the widget handle this | |
| 1618 textWidget.copy(); | |
| 1619 } | |
| 1620 | |
| 1621 if (copyText !is null && copyText.equals(textWidget.getSelectionText())) { | |
| 1622 /* | |
| 1623 * XXX: Reduce pain of https://bugs.eclipse.org/bugs/show_bug.cgi?id=64498 | |
| 1624 * by letting the widget handle the copy operation in this special case. | |
| 1625 */ | |
| 1626 textWidget.copy(); | |
| 1627 } else if (copyText !is null) { | |
| 1628 | |
| 1629 Clipboard clipboard= new Clipboard(textWidget.getDisplay()); | |
| 1630 | |
| 1631 try { | |
| 145 | 1632 Transfer[] dataTypes= [ TextTransfer.getInstance() ]; |
| 1633 Object[] data= [ stringcast(copyText) ]; | |
| 129 | 1634 try { |
| 1635 clipboard.setContents(data, dataTypes); | |
| 1636 } catch (DWTError e) { | |
| 1637 if (e.code !is DND.ERROR_CANNOT_SET_CLIPBOARD) | |
| 1638 throw e; | |
| 1639 /* | |
| 1640 * TODO see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59459 | |
| 1641 * we should either log and/or inform the user | |
| 1642 * silently fail for now. | |
| 1643 */ | |
| 1644 return; | |
| 1645 } | |
| 1646 | |
| 1647 } finally { | |
| 1648 clipboard.dispose(); | |
| 1649 } | |
| 1650 } | |
| 1651 | |
| 145 | 1652 if (delete_) { |
| 129 | 1653 try { |
| 1654 deleteTextRange(offset, length, textWidget); | |
| 1655 } catch (BadLocationException x) { | |
| 1656 // XXX: should log here, but JFace Text has no Log | |
| 1657 } | |
| 1658 } | |
| 1659 } | |
| 1660 | |
|
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diff
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|
1661 private void deleteTextRange(int offset, int length, StyledText textWidget) { |
| 129 | 1662 getDocument().replace(offset, length, ""); //$NON-NLS-1$ |
| 1663 int widgetCaret= modelOffset2WidgetOffset(offset); | |
| 1664 if (widgetCaret > -1) | |
| 1665 textWidget.setSelection(widgetCaret); | |
| 1666 } | |
| 1667 | |
| 1668 /** | |
| 1669 * Adapts the behavior of the super class to respect line based folding. | |
| 1670 * | |
| 1671 * @param widgetSelection the widget selection | |
| 1672 * @return the model selection while respecting line based folding | |
| 1673 */ | |
| 1674 protected Point widgetSelection2ModelSelection(Point widgetSelection) { | |
| 1675 | |
| 1676 if (!isProjectionMode()) | |
| 1677 return super.widgetSelection2ModelSelection(widgetSelection); | |
| 1678 | |
| 1679 /* | |
| 1680 * There is one requirement that governs preservation of logical | |
| 1681 * positions: | |
| 1682 * | |
| 1683 * 1) a selection with widget_length is 0 should never expand to have | |
| 1684 * model_length > 0. | |
| 1685 * | |
| 1686 * There are a number of ambiguities to resolve with projection regions. | |
| 1687 * A projected region P has a widget-length of zero. Its widget offset | |
| 1688 * may interact with the selection S in various ways: | |
| 1689 * | |
| 1690 * A) P.widget_offset lies at the caret, S.widget_length is zero. | |
| 1691 * Requirement 1 applies. S is *behind* P (done so by widgetRange2ModelRange). | |
| 1692 * | |
| 1693 * B) P.widget_offset lies inside the widget selection. This case is | |
| 1694 * easy: P is included in S, which is automatically done so by | |
| 1695 * widgetRange2ModelRange. | |
| 1696 * | |
| 1697 * C) P.widget_offset lies at S.widget_end: This is | |
| 1698 * arguable - our policy is to include P if it belongs to a projection | |
| 1699 * annotation that overlaps with the widget selection. | |
| 1700 * | |
| 1701 * D) P.widget_offset lies at S.widget_offset: Arguable - our policy | |
| 1702 * is to include P if it belongs to a projection annotation that | |
| 1703 * overlaps with the widget selection | |
| 1704 */ | |
| 1705 IRegion modelSelection= widgetRange2ModelRange(new Region(widgetSelection.x, widgetSelection.y)); | |
| 1706 if (modelSelection is null) | |
| 1707 return null; | |
| 1708 | |
| 1709 int modelOffset= modelSelection.getOffset(); | |
| 1710 int modelEndOffset= modelOffset + modelSelection.getLength(); | |
| 1711 | |
| 1712 /* Case A: never expand a zero-length selection. S is *behind* P. */ | |
| 1713 if (widgetSelection.y is 0) | |
| 1714 return new Point(modelEndOffset, 0); | |
| 1715 | |
| 1716 int widgetSelectionExclusiveEnd= widgetSelection.x + widgetSelection.y; | |
| 1717 Position[] annotationPositions= computeOverlappingAnnotationPositions(modelSelection); | |
| 1718 for (int i= 0; i < annotationPositions.length; i++) { | |
| 1719 IRegion[] regions= computeCollapsedRegions(annotationPositions[i]); | |
| 1720 if (regions is null) | |
| 1721 continue; | |
| 1722 for (int j= 0; j < regions.length; j++) { | |
| 1723 IRegion modelRange= regions[j]; | |
| 1724 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange); | |
| 1725 // only take collapsed ranges, i.e. widget length is 0 | |
| 1726 if (widgetRange !is null && widgetRange.getLength() is 0) { | |
| 1727 int widgetOffset= widgetRange.getOffset(); | |
| 1728 // D) region is collapsed at S.widget_offset | |
| 1729 if (widgetOffset is widgetSelection.x) | |
| 1730 modelOffset= Math.min(modelOffset, modelRange.getOffset()); | |
| 1731 // C) region is collapsed at S.widget_end | |
| 1732 else if (widgetOffset is widgetSelectionExclusiveEnd) | |
| 1733 modelEndOffset= Math.max(modelEndOffset, modelRange.getOffset() + modelRange.getLength()); | |
| 1734 } | |
| 1735 } | |
| 1736 } | |
| 1737 return new Point(modelOffset, modelEndOffset - modelOffset); | |
| 1738 } | |
| 1739 | |
| 1740 /** | |
| 1741 * Returns the positions of all annotations that intersect with | |
| 1742 * <code>modelSelection</code> and that are at least partly visible. | |
| 1743 * @param modelSelection a model range | |
| 1744 * @return the positions of all annotations that intersect with | |
| 1745 * <code>modelSelection</code> | |
| 1746 * @since 3.1 | |
| 1747 */ | |
| 1748 private Position[] computeOverlappingAnnotationPositions(IRegion modelSelection) { | |
| 1749 List positions= new ArrayList(); | |
| 1750 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) { | |
| 134 | 1751 ProjectionAnnotation annotation= cast(ProjectionAnnotation) e.next(); |
| 129 | 1752 Position position= fProjectionAnnotationModel.getPosition(annotation); |
| 1753 if (position !is null && position.overlapsWith(modelSelection.getOffset(), modelSelection.getLength()) && modelRange2WidgetRange(position) !is null) | |
| 1754 positions.add(position); | |
| 1755 } | |
| 158 | 1756 return arraycast!(Position)( positions.toArray()); |
| 129 | 1757 } |
| 1758 | |
| 1759 /* | |
| 1760 * @see dwtx.jface.text.TextViewer#getFindReplaceDocumentAdapter() | |
| 1761 */ | |
| 1762 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() { | |
| 1763 if (fFindReplaceDocumentAdapter is null) { | |
| 1764 IDocument document= isProjectionMode() ? getDocument() : getVisibleDocument(); | |
| 1765 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(document); | |
| 1766 } | |
| 1767 return fFindReplaceDocumentAdapter; | |
| 1768 } | |
| 1769 | |
| 1770 /* | |
| 1771 * @see dwtx.jface.text.TextViewer#findAndSelect(int, java.lang.String, bool, bool, bool, bool) | |
| 1772 */ | |
| 1773 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 1774 | |
| 1775 if (!isProjectionMode()) | |
| 1776 return super.findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1777 | |
| 1778 StyledText textWidget= getTextWidget(); | |
| 1779 if (textWidget is null) | |
| 1780 return -1; | |
| 1781 | |
| 1782 try { | |
| 1783 | |
| 1784 IRegion matchRegion= getFindReplaceDocumentAdapter().find(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1785 if (matchRegion !is null) { | |
| 1786 exposeModelRange(matchRegion); | |
| 1787 revealRange(matchRegion.getOffset(), matchRegion.getLength()); | |
| 1788 setSelectedRange(matchRegion.getOffset(), matchRegion.getLength()); | |
| 1789 return matchRegion.getOffset(); | |
| 1790 } | |
| 1791 | |
| 1792 } catch (BadLocationException x) { | |
| 1793 } | |
| 1794 | |
| 1795 return -1; | |
| 1796 } | |
| 1797 | |
| 1798 /* | |
| 1799 * @see dwtx.jface.text.TextViewer#findAndSelectInRange(int, java.lang.String, bool, bool, bool, int, int, bool) | |
| 1800 */ | |
| 1801 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) { | |
| 1802 | |
| 1803 if (!isProjectionMode()) | |
| 1804 return super.findAndSelectInRange(startPosition, findString, forwardSearch, caseSensitive, wholeWord, rangeOffset, rangeLength, regExSearch); | |
| 1805 | |
| 1806 StyledText textWidget= getTextWidget(); | |
| 1807 if (textWidget is null) | |
| 1808 return -1; | |
| 1809 | |
| 1810 try { | |
| 1811 | |
| 1812 int modelOffset= startPosition; | |
| 1813 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) { | |
| 1814 modelOffset= rangeOffset; | |
| 1815 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) { | |
| 1816 modelOffset= rangeOffset + rangeLength; | |
| 1817 } | |
| 1818 | |
| 1819 IRegion matchRegion= getFindReplaceDocumentAdapter().find(modelOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 1820 if (matchRegion !is null) { | |
| 1821 int offset= matchRegion.getOffset(); | |
| 1822 int length= matchRegion.getLength(); | |
| 1823 if (rangeOffset <= offset && offset + length <= rangeOffset + rangeLength) { | |
| 1824 exposeModelRange(matchRegion); | |
| 1825 revealRange(offset, length); | |
| 1826 setSelectedRange(offset, length); | |
| 1827 return offset; | |
| 1828 } | |
| 1829 } | |
| 1830 | |
| 1831 } catch (BadLocationException x) { | |
| 1832 } | |
| 1833 | |
| 1834 return -1; | |
| 1835 } | |
| 1836 } |