Mercurial > projects > dwt-addons
annotate dwtx/jface/text/DefaultDocumentAdapter.d @ 138:b6bad70d540a
Regex instanceof changes
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 02:26:23 +0200 |
| parents | 6dcb0baaa031 |
| children | 26688fec6d23 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 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.DefaultDocumentAdapter; | |
| 14 | |
| 131 | 15 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport |
| 16 import dwtx.jface.text.DefaultTextHover; // packageimport | |
| 17 import dwtx.jface.text.AbstractInformationControl; // packageimport | |
| 18 import dwtx.jface.text.TextUtilities; // packageimport | |
| 19 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport | |
| 20 import dwtx.jface.text.AbstractInformationControlManager; // packageimport | |
| 21 import dwtx.jface.text.ITextViewerExtension2; // packageimport | |
| 22 import dwtx.jface.text.IDocumentPartitioner; // packageimport | |
| 23 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport | |
| 24 import dwtx.jface.text.ITextSelection; // packageimport | |
| 25 import dwtx.jface.text.Document; // packageimport | |
| 26 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport | |
| 27 import dwtx.jface.text.ITextListener; // packageimport | |
| 28 import dwtx.jface.text.BadPartitioningException; // packageimport | |
| 29 import dwtx.jface.text.ITextViewerExtension5; // packageimport | |
| 30 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport | |
| 31 import dwtx.jface.text.IUndoManager; // packageimport | |
| 32 import dwtx.jface.text.ITextHoverExtension2; // packageimport | |
| 33 import dwtx.jface.text.IRepairableDocument; // packageimport | |
| 34 import dwtx.jface.text.IRewriteTarget; // packageimport | |
| 35 import dwtx.jface.text.DefaultPositionUpdater; // packageimport | |
| 36 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport | |
| 37 import dwtx.jface.text.TextViewerHoverManager; // packageimport | |
| 38 import dwtx.jface.text.DocumentRewriteSession; // packageimport | |
| 39 import dwtx.jface.text.TextViewer; // packageimport | |
| 40 import dwtx.jface.text.ITextViewerExtension8; // packageimport | |
| 41 import dwtx.jface.text.RegExMessages; // packageimport | |
| 42 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport | |
| 43 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport | |
| 44 import dwtx.jface.text.IWidgetTokenOwner; // packageimport | |
| 45 import dwtx.jface.text.IViewportListener; // packageimport | |
| 46 import dwtx.jface.text.GapTextStore; // packageimport | |
| 47 import dwtx.jface.text.MarkSelection; // packageimport | |
| 48 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
| 49 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport | |
| 50 import dwtx.jface.text.IInformationControlExtension; // packageimport | |
| 51 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
| 52 import dwtx.jface.text.ITextViewerExtension3; // packageimport | |
| 53 import dwtx.jface.text.IInformationControlCreator; // packageimport | |
| 54 import dwtx.jface.text.TypedRegion; // packageimport | |
| 55 import dwtx.jface.text.ISynchronizable; // packageimport | |
| 56 import dwtx.jface.text.IMarkRegionTarget; // packageimport | |
| 57 import dwtx.jface.text.TextViewerUndoManager; // packageimport | |
| 58 import dwtx.jface.text.IRegion; // packageimport | |
| 59 import dwtx.jface.text.IInformationControlExtension2; // packageimport | |
| 60 import dwtx.jface.text.IDocumentExtension4; // packageimport | |
| 61 import dwtx.jface.text.IDocumentExtension2; // packageimport | |
| 62 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport | |
| 63 import dwtx.jface.text.Assert; // packageimport | |
| 64 import dwtx.jface.text.DefaultInformationControl; // packageimport | |
| 65 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
| 66 import dwtx.jface.text.DocumentClone; // packageimport | |
| 67 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
| 68 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
| 69 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
| 70 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
| 71 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
| 72 import dwtx.jface.text.TextSelection; // packageimport | |
| 73 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
| 74 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
| 75 import dwtx.jface.text.IPainter; // packageimport | |
| 76 import dwtx.jface.text.IInformationControl; // packageimport | |
| 77 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
| 78 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
| 79 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
| 80 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
| 81 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
| 82 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
| 83 import dwtx.jface.text.ITextHover; // packageimport | |
| 84 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport | |
| 85 import dwtx.jface.text.ILineTracker; // packageimport | |
| 86 import dwtx.jface.text.Line; // packageimport | |
| 87 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
| 88 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
| 89 import dwtx.jface.text.TextEvent; // packageimport | |
| 90 import dwtx.jface.text.BadLocationException; // packageimport | |
| 91 import dwtx.jface.text.AbstractDocument; // packageimport | |
| 92 import dwtx.jface.text.AbstractLineTracker; // packageimport | |
| 93 import dwtx.jface.text.TreeLineTracker; // packageimport | |
| 94 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
| 95 import dwtx.jface.text.Region; // packageimport | |
| 96 import dwtx.jface.text.ITextViewer; // packageimport | |
| 97 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
| 98 import dwtx.jface.text.MarginPainter; // packageimport | |
| 99 import dwtx.jface.text.IPaintPositionManager; // packageimport | |
| 100 import dwtx.jface.text.TextPresentation; // packageimport | |
| 101 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport | |
| 102 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
| 103 import dwtx.jface.text.ISelectionValidator; // packageimport | |
| 104 import dwtx.jface.text.IDocumentExtension; // packageimport | |
| 105 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport | |
| 106 import dwtx.jface.text.ConfigurableLineTracker; // packageimport | |
| 107 import dwtx.jface.text.SlaveDocumentEvent; // packageimport | |
| 108 import dwtx.jface.text.IDocumentListener; // packageimport | |
| 109 import dwtx.jface.text.PaintManager; // packageimport | |
| 110 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport | |
| 111 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport | |
| 112 import dwtx.jface.text.IDocumentExtension3; // packageimport | |
| 113 import dwtx.jface.text.Position; // packageimport | |
| 114 import dwtx.jface.text.TextMessages; // packageimport | |
| 115 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport | |
| 116 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport | |
| 117 import dwtx.jface.text.IPositionUpdater; // packageimport | |
| 118 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
| 119 import dwtx.jface.text.ListLineTracker; // packageimport | |
| 120 import dwtx.jface.text.ITextInputListener; // packageimport | |
| 121 import dwtx.jface.text.BadPositionCategoryException; // packageimport | |
| 122 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
| 123 import dwtx.jface.text.IInputChangedListener; // packageimport | |
| 124 import dwtx.jface.text.ITextOperationTarget; // packageimport | |
| 125 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
| 126 import dwtx.jface.text.ITextViewerExtension7; // packageimport | |
| 127 import dwtx.jface.text.IInformationControlExtension5; // packageimport | |
| 128 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport | |
| 129 import dwtx.jface.text.JFaceTextUtil; // packageimport | |
| 130 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
| 131 import dwtx.jface.text.TabsToSpacesConverter; // packageimport | |
| 132 import dwtx.jface.text.CursorLinePainter; // packageimport | |
| 133 import dwtx.jface.text.ITextHoverExtension; // packageimport | |
| 134 import dwtx.jface.text.IEventConsumer; // packageimport | |
| 135 import dwtx.jface.text.IDocument; // packageimport | |
| 136 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport | |
| 137 import dwtx.jface.text.DocumentCommand; // packageimport | |
| 138 import dwtx.jface.text.TypedPosition; // packageimport | |
| 139 import dwtx.jface.text.IEditingSupportRegistry; // packageimport | |
| 140 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport | |
| 141 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport | |
| 142 import dwtx.jface.text.IEditingSupport; // packageimport | |
| 143 import dwtx.jface.text.IMarkSelection; // packageimport | |
| 144 import dwtx.jface.text.ISlaveDocumentManager; // packageimport | |
| 145 import dwtx.jface.text.DocumentEvent; // packageimport | |
| 146 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
| 147 import dwtx.jface.text.ITextStore; // packageimport | |
| 148 import dwtx.jface.text.JFaceTextMessages; // packageimport | |
| 149 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport | |
| 150 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport | |
| 151 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport | |
| 152 import dwtx.jface.text.TextAttribute; // packageimport | |
| 153 import dwtx.jface.text.ITextViewerExtension4; // packageimport | |
| 154 import dwtx.jface.text.ITypedRegion; // packageimport | |
| 155 | |
| 156 | |
| 129 | 157 import dwt.dwthelper.utils; |
| 158 | |
| 159 | |
| 160 import java.util.ArrayList; | |
| 161 import java.util.Iterator; | |
| 162 import java.util.List; | |
| 163 | |
| 164 import dwt.DWT; | |
| 165 import dwt.custom.TextChangeListener; | |
| 166 import dwt.custom.TextChangedEvent; | |
| 167 import dwt.custom.TextChangingEvent; | |
| 168 import dwtx.core.runtime.Assert; | |
| 169 | |
| 170 | |
| 171 /** | |
| 172 * Default implementation of {@link dwtx.jface.text.IDocumentAdapter}. | |
| 173 * <p> | |
| 174 * <strong>Note:</strong> This adapter does not work if the widget auto-wraps the text. | |
| 175 * </p> | |
| 176 */ | |
| 177 class DefaultDocumentAdapter : IDocumentAdapter, IDocumentListener, IDocumentAdapterExtension { | |
| 178 | |
| 179 /** The adapted document. */ | |
| 180 private IDocument fDocument; | |
| 181 /** The document clone for the non-forwarding case. */ | |
| 182 private IDocument fDocumentClone; | |
| 183 /** The original content */ | |
| 184 private String fOriginalContent; | |
| 185 /** The original line delimiters */ | |
| 186 private String[] fOriginalLineDelimiters; | |
| 187 /** The registered text change listeners */ | |
| 188 private List fTextChangeListeners= new ArrayList(1); | |
| 189 /** | |
| 190 * The remembered document event | |
| 191 * @since 2.0 | |
| 192 */ | |
| 193 private DocumentEvent fEvent; | |
| 194 /** The line delimiter */ | |
| 195 private String fLineDelimiter= null; | |
| 196 /** | |
| 197 * Indicates whether this adapter is forwarding document changes | |
| 198 * @since 2.0 | |
| 199 */ | |
| 200 private bool fIsForwarding= true; | |
| 201 /** | |
| 202 * Length of document at receipt of <code>documentAboutToBeChanged</code> | |
| 203 * @since 2.1 | |
| 204 */ | |
| 205 private int fRememberedLengthOfDocument; | |
| 206 /** | |
| 207 * Length of first document line at receipt of <code>documentAboutToBeChanged</code> | |
| 208 * @since 2.1 | |
| 209 */ | |
| 210 private int fRememberedLengthOfFirstLine; | |
| 211 /** | |
| 212 * The data of the event at receipt of <code>documentAboutToBeChanged</code> | |
| 213 * @since 2.1 | |
| 214 */ | |
| 215 private DocumentEvent fOriginalEvent= new DocumentEvent(); | |
| 216 | |
| 217 | |
| 218 /** | |
| 219 * Creates a new document adapter which is initially not connected to | |
| 220 * any document. | |
| 221 */ | |
|
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222 public this() { |
| 129 | 223 } |
| 224 | |
| 225 /** | |
| 226 * Sets the given document as the document to be adapted. | |
| 227 * | |
| 228 * @param document the document to be adapted or <code>null</code> if there is no document | |
| 229 */ | |
| 230 public void setDocument(IDocument document) { | |
| 231 | |
| 232 if (fDocument !is null) | |
| 233 fDocument.removePrenotifiedDocumentListener(this); | |
| 234 | |
| 235 fDocument= document; | |
| 236 fLineDelimiter= null; | |
| 237 | |
| 238 if (!fIsForwarding) { | |
| 239 fDocumentClone= null; | |
| 240 if (fDocument !is null) { | |
| 241 fOriginalContent= fDocument.get(); | |
| 242 fOriginalLineDelimiters= fDocument.getLegalLineDelimiters(); | |
| 243 } else { | |
| 244 fOriginalContent= null; | |
| 245 fOriginalLineDelimiters= null; | |
| 246 } | |
| 247 } | |
| 248 | |
| 249 if (fDocument !is null) | |
| 250 fDocument.addPrenotifiedDocumentListener(this); | |
| 251 } | |
| 252 | |
| 253 /* | |
| 254 * @see StyledTextContent#addTextChangeListener(TextChangeListener) | |
| 255 */ | |
| 256 public void addTextChangeListener(TextChangeListener listener) { | |
| 257 Assert.isNotNull(listener); | |
| 258 if (!fTextChangeListeners.contains(listener)) | |
| 259 fTextChangeListeners.add(listener); | |
| 260 } | |
| 261 | |
| 262 /* | |
| 263 * @see StyledTextContent#removeTextChangeListener(TextChangeListener) | |
| 264 */ | |
| 265 public void removeTextChangeListener(TextChangeListener listener) { | |
| 266 Assert.isNotNull(listener); | |
| 267 fTextChangeListeners.remove(listener); | |
| 268 } | |
| 269 | |
| 270 /** | |
| 271 * Tries to repair the line information. | |
| 272 * | |
| 273 * @param document the document | |
| 274 * @see IRepairableDocument#repairLineInformation() | |
| 275 * @since 3.0 | |
| 276 */ | |
| 277 private void repairLineInformation(IDocument document) { | |
| 138 | 278 if ( cast(IRepairableDocument)document ) { |
| 134 | 279 IRepairableDocument repairable= cast(IRepairableDocument) document; |
| 129 | 280 repairable.repairLineInformation(); |
| 281 } | |
| 282 } | |
| 283 | |
| 284 /** | |
| 285 * Returns the line for the given line number. | |
| 286 * | |
| 287 * @param document the document | |
| 288 * @param line the line number | |
| 289 * @return the content of the line of the given number in the given document | |
| 290 * @throws BadLocationException if the line number is invalid for the adapted document | |
| 291 * @since 3.0 | |
| 292 */ | |
|
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293 private String doGetLine(IDocument document, int line) { |
| 129 | 294 IRegion r= document.getLineInformation(line); |
| 295 return document.get(r.getOffset(), r.getLength()); | |
| 296 } | |
| 297 | |
| 298 private IDocument getDocumentForRead() { | |
| 299 if (!fIsForwarding) { | |
| 300 if (fDocumentClone is null) { | |
| 301 String content= fOriginalContent is null ? "" : fOriginalContent; //$NON-NLS-1$ | |
| 302 String[] delims= fOriginalLineDelimiters is null ? DefaultLineTracker.DELIMITERS : fOriginalLineDelimiters; | |
| 303 fDocumentClone= new DocumentClone(content, delims); | |
| 304 } | |
| 305 return fDocumentClone; | |
| 306 } | |
| 307 | |
| 308 return fDocument; | |
| 309 } | |
| 310 | |
| 311 /* | |
| 312 * @see StyledTextContent#getLine(int) | |
| 313 */ | |
| 314 public String getLine(int line) { | |
| 315 | |
| 316 IDocument document= getDocumentForRead(); | |
| 317 try { | |
| 318 return doGetLine(document, line); | |
| 319 } catch (BadLocationException x) { | |
| 320 repairLineInformation(document); | |
| 321 try { | |
| 322 return doGetLine(document, line); | |
| 323 } catch (BadLocationException x2) { | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 328 return null; | |
| 329 } | |
| 330 | |
| 331 /* | |
| 332 * @see StyledTextContent#getLineAtOffset(int) | |
| 333 */ | |
| 334 public int getLineAtOffset(int offset) { | |
| 335 IDocument document= getDocumentForRead(); | |
| 336 try { | |
| 337 return document.getLineOfOffset(offset); | |
| 338 } catch (BadLocationException x) { | |
| 339 repairLineInformation(document); | |
| 340 try { | |
| 341 return document.getLineOfOffset(offset); | |
| 342 } catch (BadLocationException x2) { | |
| 343 } | |
| 344 } | |
| 345 | |
| 346 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 347 return -1; | |
| 348 } | |
| 349 | |
| 350 /* | |
| 351 * @see StyledTextContent#getLineCount() | |
| 352 */ | |
| 353 public int getLineCount() { | |
| 354 return getDocumentForRead().getNumberOfLines(); | |
| 355 } | |
| 356 | |
| 357 /* | |
| 358 * @see StyledTextContent#getOffsetAtLine(int) | |
| 359 */ | |
| 360 public int getOffsetAtLine(int line) { | |
| 361 IDocument document= getDocumentForRead(); | |
| 362 try { | |
| 363 return document.getLineOffset(line); | |
| 364 } catch (BadLocationException x) { | |
| 365 repairLineInformation(document); | |
| 366 try { | |
| 367 return document.getLineOffset(line); | |
| 368 } catch (BadLocationException x2) { | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 373 return -1; | |
| 374 } | |
| 375 | |
| 376 /* | |
| 377 * @see StyledTextContent#getTextRange(int, int) | |
| 378 */ | |
| 379 public String getTextRange(int offset, int length) { | |
| 380 try { | |
| 381 return getDocumentForRead().get(offset, length); | |
| 382 } catch (BadLocationException x) { | |
| 383 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 384 return null; | |
| 385 } | |
| 386 } | |
| 387 | |
| 388 /* | |
| 389 * @see StyledTextContent#replaceTextRange(int, int, String) | |
| 390 */ | |
| 391 public void replaceTextRange(int pos, int length, String text) { | |
| 392 try { | |
| 393 fDocument.replace(pos, length, text); | |
| 394 } catch (BadLocationException x) { | |
| 395 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 396 } | |
| 397 } | |
| 398 | |
| 399 /* | |
| 400 * @see StyledTextContent#setText(String) | |
| 401 */ | |
| 402 public void setText(String text) { | |
| 403 fDocument.set(text); | |
| 404 } | |
| 405 | |
| 406 /* | |
| 407 * @see StyledTextContent#getCharCount() | |
| 408 */ | |
| 409 public int getCharCount() { | |
| 410 return getDocumentForRead().getLength(); | |
| 411 } | |
| 412 | |
| 413 /* | |
| 414 * @see StyledTextContent#getLineDelimiter() | |
| 415 */ | |
| 416 public String getLineDelimiter() { | |
| 417 if (fLineDelimiter is null) | |
| 418 fLineDelimiter= TextUtilities.getDefaultLineDelimiter(fDocument); | |
| 419 return fLineDelimiter; | |
| 420 } | |
| 421 | |
| 422 /* | |
| 423 * @see IDocumentListener#documentChanged(DocumentEvent) | |
| 424 */ | |
| 425 public void documentChanged(DocumentEvent event) { | |
| 426 // check whether the given event is the one which was remembered | |
| 427 if (fEvent is null || event !is fEvent) | |
| 428 return; | |
| 429 | |
| 430 if (isPatchedEvent(event) || (event.getOffset() is 0 && event.getLength() is fRememberedLengthOfDocument)) { | |
| 431 fLineDelimiter= null; | |
| 432 fireTextSet(); | |
| 433 } else { | |
| 434 if (event.getOffset() < fRememberedLengthOfFirstLine) | |
| 435 fLineDelimiter= null; | |
| 436 fireTextChanged(); | |
| 437 } | |
| 438 } | |
| 439 | |
| 440 /* | |
| 441 * @see IDocumentListener#documentAboutToBeChanged(DocumentEvent) | |
| 442 */ | |
| 443 public void documentAboutToBeChanged(DocumentEvent event) { | |
| 444 | |
| 445 fRememberedLengthOfDocument= fDocument.getLength(); | |
| 446 try { | |
| 447 fRememberedLengthOfFirstLine= fDocument.getLineLength(0); | |
| 448 } catch (BadLocationException e) { | |
| 449 fRememberedLengthOfFirstLine= -1; | |
| 450 } | |
| 451 | |
| 452 fEvent= event; | |
| 453 rememberEventData(fEvent); | |
| 454 fireTextChanging(); | |
| 455 } | |
| 456 | |
| 457 /** | |
| 458 * Checks whether this event has been changed between <code>documentAboutToBeChanged</code> and | |
| 459 * <code>documentChanged</code>. | |
| 460 * | |
| 461 * @param event the event to be checked | |
| 462 * @return <code>true</code> if the event has been changed, <code>false</code> otherwise | |
| 463 */ | |
| 464 private bool isPatchedEvent(DocumentEvent event) { | |
| 465 return fOriginalEvent.fOffset !is event.fOffset || fOriginalEvent.fLength !is event.fLength || fOriginalEvent.fText !is event.fText; | |
| 466 } | |
| 467 | |
| 468 /** | |
| 469 * Makes a copy of the given event and remembers it. | |
| 470 * | |
| 471 * @param event the event to be copied | |
| 472 */ | |
| 473 private void rememberEventData(DocumentEvent event) { | |
| 474 fOriginalEvent.fOffset= event.fOffset; | |
| 475 fOriginalEvent.fLength= event.fLength; | |
| 476 fOriginalEvent.fText= event.fText; | |
| 477 } | |
| 478 | |
| 479 /** | |
| 480 * Sends a text changed event to all registered listeners. | |
| 481 */ | |
| 482 private void fireTextChanged() { | |
| 483 | |
| 484 if (!fIsForwarding) | |
| 485 return; | |
| 486 | |
| 487 TextChangedEvent event= new TextChangedEvent(this); | |
| 488 | |
| 489 if (fTextChangeListeners !is null && fTextChangeListeners.size() > 0) { | |
| 490 Iterator e= new ArrayList(fTextChangeListeners).iterator(); | |
| 491 while (e.hasNext()) | |
| 134 | 492 (cast(TextChangeListener) e.next()).textChanged(event); |
| 129 | 493 } |
| 494 } | |
| 495 | |
| 496 /** | |
| 497 * Sends a text set event to all registered listeners. | |
| 498 */ | |
| 499 private void fireTextSet() { | |
| 500 | |
| 501 if (!fIsForwarding) | |
| 502 return; | |
| 503 | |
| 504 TextChangedEvent event = new TextChangedEvent(this); | |
| 505 | |
| 506 if (fTextChangeListeners !is null && fTextChangeListeners.size() > 0) { | |
| 507 Iterator e= new ArrayList(fTextChangeListeners).iterator(); | |
| 508 while (e.hasNext()) | |
| 134 | 509 (cast(TextChangeListener) e.next()).textSet(event); |
| 129 | 510 } |
| 511 } | |
| 512 | |
| 513 /** | |
| 514 * Sends the text changing event to all registered listeners. | |
| 515 */ | |
| 516 private void fireTextChanging() { | |
| 517 | |
| 518 if (!fIsForwarding) | |
| 519 return; | |
| 520 | |
| 521 try { | |
| 522 IDocument document= fEvent.getDocument(); | |
| 523 if (document is null) | |
| 524 return; | |
| 525 | |
| 526 TextChangingEvent event= new TextChangingEvent(this); | |
| 527 event.start= fEvent.fOffset; | |
| 528 event.replaceCharCount= fEvent.fLength; | |
| 529 event.replaceLineCount= document.getNumberOfLines(fEvent.fOffset, fEvent.fLength) - 1; | |
| 530 event.newText= fEvent.fText; | |
| 531 event.newCharCount= (fEvent.fText is null ? 0 : fEvent.fText.length()); | |
| 532 event.newLineCount= (fEvent.fText is null ? 0 : document.computeNumberOfLines(fEvent.fText)); | |
| 533 | |
| 534 if (fTextChangeListeners !is null && fTextChangeListeners.size() > 0) { | |
| 535 Iterator e= new ArrayList(fTextChangeListeners).iterator(); | |
| 536 while (e.hasNext()) | |
| 134 | 537 (cast(TextChangeListener) e.next()).textChanging(event); |
| 129 | 538 } |
| 539 | |
| 540 } catch (BadLocationException e) { | |
| 541 } | |
| 542 } | |
| 543 | |
| 544 /* | |
| 545 * @see IDocumentAdapterExtension#resumeForwardingDocumentChanges() | |
| 546 * @since 2.0 | |
| 547 */ | |
| 548 public void resumeForwardingDocumentChanges() { | |
| 549 fIsForwarding= true; | |
| 550 fDocumentClone= null; | |
| 551 fOriginalContent= null; | |
| 552 fOriginalLineDelimiters= null; | |
| 553 fireTextSet(); | |
| 554 } | |
| 555 | |
| 556 /* | |
| 557 * @see IDocumentAdapterExtension#stopForwardingDocumentChanges() | |
| 558 * @since 2.0 | |
| 559 */ | |
| 560 public void stopForwardingDocumentChanges() { | |
| 561 fDocumentClone= null; | |
| 562 fOriginalContent= fDocument.get(); | |
| 563 fOriginalLineDelimiters= fDocument.getLegalLineDelimiters(); | |
| 564 fIsForwarding= false; | |
| 565 } | |
| 566 } |