Mercurial > projects > dwt-addons
annotate dwtx/jface/text/DefaultDocumentAdapter.d @ 134:51e6e63f930e
Regex fix for casts
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 01:46:20 +0200 |
parents | 7d818bd32d63 |
children | 6dcb0baaa031 |
rev | line source |
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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 */ | |
133
7d818bd32d63
Fix ctors to this with gvim regexp
Frank Benoit <benoit@tionex.de>
parents:
131
diff
changeset
|
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) { | |
278 if (document instanceof IRepairableDocument) { | |
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 */ | |
293 private String doGetLine(IDocument document, int line) throws BadLocationException { | |
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 } |