Mercurial > projects > dwt-addons
annotate dwtx/jface/text/AbstractLineTracker.d @ 135:65801ad2b265
Regex fix for anon classes
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 01:52:31 +0200 |
parents | 51e6e63f930e |
children | 6dcb0baaa031 |
rev | line source |
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129 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
3 * All rights reserved. This program and the accompanying materials | |
4 * are made available under the terms of the Eclipse Public License v1.0 | |
5 * which accompanies this distribution, and is available at | |
6 * http://www.eclipse.org/legal/epl-v10.html | |
7 * | |
8 * Contributors: | |
9 * IBM Corporation - initial API and implementation | |
10 * Port to the D programming language: | |
11 * Frank Benoit <benoit@tionex.de> | |
12 *******************************************************************************/ | |
13 module dwtx.jface.text.AbstractLineTracker; | |
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.DefaultDocumentAdapter; // packageimport | |
53 import dwtx.jface.text.ITextViewerExtension3; // packageimport | |
54 import dwtx.jface.text.IInformationControlCreator; // packageimport | |
55 import dwtx.jface.text.TypedRegion; // packageimport | |
56 import dwtx.jface.text.ISynchronizable; // packageimport | |
57 import dwtx.jface.text.IMarkRegionTarget; // packageimport | |
58 import dwtx.jface.text.TextViewerUndoManager; // packageimport | |
59 import dwtx.jface.text.IRegion; // packageimport | |
60 import dwtx.jface.text.IInformationControlExtension2; // packageimport | |
61 import dwtx.jface.text.IDocumentExtension4; // packageimport | |
62 import dwtx.jface.text.IDocumentExtension2; // packageimport | |
63 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport | |
64 import dwtx.jface.text.Assert; // packageimport | |
65 import dwtx.jface.text.DefaultInformationControl; // packageimport | |
66 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
67 import dwtx.jface.text.DocumentClone; // packageimport | |
68 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
69 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
70 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
71 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
72 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
73 import dwtx.jface.text.TextSelection; // packageimport | |
74 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
75 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
76 import dwtx.jface.text.IPainter; // packageimport | |
77 import dwtx.jface.text.IInformationControl; // packageimport | |
78 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
79 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
80 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
81 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
82 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
83 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
84 import dwtx.jface.text.ITextHover; // packageimport | |
85 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport | |
86 import dwtx.jface.text.ILineTracker; // packageimport | |
87 import dwtx.jface.text.Line; // packageimport | |
88 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
89 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
90 import dwtx.jface.text.TextEvent; // packageimport | |
91 import dwtx.jface.text.BadLocationException; // packageimport | |
92 import dwtx.jface.text.AbstractDocument; // 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 import java.util.ArrayList; | |
160 import java.util.Iterator; | |
161 import java.util.List; | |
162 | |
163 /** | |
164 * Abstract implementation of <code>ILineTracker</code>. It lets the definition of line | |
165 * delimiters to subclasses. Assuming that '\n' is the only line delimiter, this abstract | |
166 * implementation defines the following line scheme: | |
167 * <ul> | |
168 * <li> "" -> [0,0] | |
169 * <li> "a" -> [0,1] | |
170 * <li> "\n" -> [0,1], [1,0] | |
171 * <li> "a\n" -> [0,2], [2,0] | |
172 * <li> "a\nb" -> [0,2], [2,1] | |
173 * <li> "a\nbc\n" -> [0,2], [2,3], [5,0] | |
174 * </ul> | |
175 * <p> | |
176 * This class must be subclassed. | |
177 * </p> | |
178 */ | |
179 public abstract class AbstractLineTracker : ILineTracker, ILineTrackerExtension { | |
180 | |
181 /** | |
182 * Tells whether this class is in debug mode. | |
183 * | |
184 * @since 3.1 | |
185 */ | |
186 private static final bool DEBUG= false; | |
187 | |
188 /** | |
189 * Combines the information of the occurrence of a line delimiter. <code>delimiterIndex</code> | |
190 * is the index where a line delimiter starts, whereas <code>delimiterLength</code>, | |
191 * indicates the length of the delimiter. | |
192 */ | |
193 protected static class DelimiterInfo { | |
194 public int delimiterIndex; | |
195 public int delimiterLength; | |
196 public String delimiter; | |
197 } | |
198 | |
199 /** | |
200 * Representation of replace and set requests. | |
201 * | |
202 * @since 3.1 | |
203 */ | |
204 protected static class Request { | |
205 public final int offset; | |
206 public final int length; | |
207 public final String text; | |
208 | |
133
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209 public this(int offset, int length, String text) { |
129 | 210 this.offset= offset; |
211 this.length= length; | |
212 this.text= text; | |
213 } | |
214 | |
133
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215 public this(String text) { |
129 | 216 this.offset= -1; |
217 this.length= -1; | |
218 this.text= text; | |
219 } | |
220 | |
221 public bool isReplaceRequest() { | |
222 return this.offset > -1 && this.length > -1; | |
223 } | |
224 } | |
225 | |
226 /** | |
227 * The active rewrite session. | |
228 * | |
229 * @since 3.1 | |
230 */ | |
231 private DocumentRewriteSession fActiveRewriteSession; | |
232 /** | |
233 * The list of pending requests. | |
234 * | |
235 * @since 3.1 | |
236 */ | |
237 private List fPendingRequests; | |
238 /** | |
239 * The implementation that this tracker delegates to. | |
240 * | |
241 * @since 3.2 | |
242 */ | |
135 | 243 private ILineTracker fDelegate= new class() ListLineTracker { |
129 | 244 public String[] getLegalLineDelimiters() { |
245 return AbstractLineTracker.this.getLegalLineDelimiters(); | |
246 } | |
247 | |
248 protected DelimiterInfo nextDelimiterInfo(String text, int offset) { | |
249 return AbstractLineTracker.this.nextDelimiterInfo(text, offset); | |
250 } | |
251 }; | |
252 /** | |
253 * Whether the delegate needs conversion when the line structure is modified. | |
254 */ | |
255 private bool fNeedsConversion= true; | |
256 | |
257 /** | |
258 * Creates a new line tracker. | |
259 */ | |
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260 protected this() { |
129 | 261 } |
262 | |
263 /* | |
264 * @see dwtx.jface.text.ILineTracker#computeNumberOfLines(java.lang.String) | |
265 */ | |
266 public int computeNumberOfLines(String text) { | |
267 return fDelegate.computeNumberOfLines(text); | |
268 } | |
269 | |
270 /* | |
271 * @see dwtx.jface.text.ILineTracker#getLineDelimiter(int) | |
272 */ | |
273 public String getLineDelimiter(int line) throws BadLocationException { | |
274 checkRewriteSession(); | |
275 return fDelegate.getLineDelimiter(line); | |
276 } | |
277 | |
278 /* | |
279 * @see dwtx.jface.text.ILineTracker#getLineInformation(int) | |
280 */ | |
281 public IRegion getLineInformation(int line) throws BadLocationException { | |
282 checkRewriteSession(); | |
283 return fDelegate.getLineInformation(line); | |
284 } | |
285 | |
286 /* | |
287 * @see dwtx.jface.text.ILineTracker#getLineInformationOfOffset(int) | |
288 */ | |
289 public IRegion getLineInformationOfOffset(int offset) throws BadLocationException { | |
290 checkRewriteSession(); | |
291 return fDelegate.getLineInformationOfOffset(offset); | |
292 } | |
293 | |
294 /* | |
295 * @see dwtx.jface.text.ILineTracker#getLineLength(int) | |
296 */ | |
297 public int getLineLength(int line) throws BadLocationException { | |
298 checkRewriteSession(); | |
299 return fDelegate.getLineLength(line); | |
300 } | |
301 | |
302 /* | |
303 * @see dwtx.jface.text.ILineTracker#getLineNumberOfOffset(int) | |
304 */ | |
305 public int getLineNumberOfOffset(int offset) throws BadLocationException { | |
306 checkRewriteSession(); | |
307 return fDelegate.getLineNumberOfOffset(offset); | |
308 } | |
309 | |
310 /* | |
311 * @see dwtx.jface.text.ILineTracker#getLineOffset(int) | |
312 */ | |
313 public int getLineOffset(int line) throws BadLocationException { | |
314 checkRewriteSession(); | |
315 return fDelegate.getLineOffset(line); | |
316 } | |
317 | |
318 /* | |
319 * @see dwtx.jface.text.ILineTracker#getNumberOfLines() | |
320 */ | |
321 public int getNumberOfLines() { | |
322 try { | |
323 checkRewriteSession(); | |
324 } catch (BadLocationException x) { | |
325 // TODO there is currently no way to communicate that exception back to the document | |
326 } | |
327 return fDelegate.getNumberOfLines(); | |
328 } | |
329 | |
330 /* | |
331 * @see dwtx.jface.text.ILineTracker#getNumberOfLines(int, int) | |
332 */ | |
333 public int getNumberOfLines(int offset, int length) throws BadLocationException { | |
334 checkRewriteSession(); | |
335 return fDelegate.getNumberOfLines(offset, length); | |
336 } | |
337 | |
338 /* | |
339 * @see dwtx.jface.text.ILineTracker#set(java.lang.String) | |
340 */ | |
341 public void set(String text) { | |
342 if (hasActiveRewriteSession()) { | |
343 fPendingRequests.clear(); | |
344 fPendingRequests.add(new Request(text)); | |
345 return; | |
346 } | |
347 | |
348 fDelegate.set(text); | |
349 } | |
350 | |
351 /* | |
352 * @see dwtx.jface.text.ILineTracker#replace(int, int, java.lang.String) | |
353 */ | |
354 public void replace(int offset, int length, String text) throws BadLocationException { | |
355 if (hasActiveRewriteSession()) { | |
356 fPendingRequests.add(new Request(offset, length, text)); | |
357 return; | |
358 } | |
359 | |
360 checkImplementation(); | |
361 | |
362 fDelegate.replace(offset, length, text); | |
363 } | |
364 | |
365 /** | |
366 * Converts the implementation to be a {@link TreeLineTracker} if it isn't yet. | |
367 * | |
368 * @since 3.2 | |
369 */ | |
370 private void checkImplementation() { | |
371 if (fNeedsConversion) { | |
372 fNeedsConversion= false; | |
135 | 373 fDelegate= new class(cast(ListLineTracker) fDelegate) TreeLineTracker { |
129 | 374 protected DelimiterInfo nextDelimiterInfo(String text, int offset) { |
375 return AbstractLineTracker.this.nextDelimiterInfo(text, offset); | |
376 } | |
377 | |
378 public String[] getLegalLineDelimiters() { | |
379 return AbstractLineTracker.this.getLegalLineDelimiters(); | |
380 } | |
381 }; | |
382 } | |
383 } | |
384 | |
385 /** | |
386 * Returns the information about the first delimiter found in the given text starting at the | |
387 * given offset. | |
388 * | |
389 * @param text the text to be searched | |
390 * @param offset the offset in the given text | |
391 * @return the information of the first found delimiter or <code>null</code> | |
392 */ | |
393 protected abstract DelimiterInfo nextDelimiterInfo(String text, int offset); | |
394 | |
395 /* | |
396 * @see dwtx.jface.text.ILineTrackerExtension#startRewriteSession(dwtx.jface.text.DocumentRewriteSession) | |
397 * @since 3.1 | |
398 */ | |
399 public final void startRewriteSession(DocumentRewriteSession session) { | |
400 if (fActiveRewriteSession !is null) | |
401 throw new IllegalStateException(); | |
402 fActiveRewriteSession= session; | |
403 fPendingRequests= new ArrayList(20); | |
404 } | |
405 | |
406 /* | |
407 * @see dwtx.jface.text.ILineTrackerExtension#stopRewriteSession(dwtx.jface.text.DocumentRewriteSession, java.lang.String) | |
408 * @since 3.1 | |
409 */ | |
410 public final void stopRewriteSession(DocumentRewriteSession session, String text) { | |
411 if (fActiveRewriteSession is session) { | |
412 fActiveRewriteSession= null; | |
413 fPendingRequests= null; | |
414 set(text); | |
415 } | |
416 } | |
417 | |
418 /** | |
419 * Tells whether there's an active rewrite session. | |
420 * | |
421 * @return <code>true</code> if there is an active rewrite session, <code>false</code> | |
422 * otherwise | |
423 * @since 3.1 | |
424 */ | |
425 protected final bool hasActiveRewriteSession() { | |
426 return fActiveRewriteSession !is null; | |
427 } | |
428 | |
429 /** | |
430 * Flushes the active rewrite session. | |
431 * | |
432 * @throws BadLocationException in case the recorded requests cannot be processed correctly | |
433 * @since 3.1 | |
434 */ | |
435 protected final void flushRewriteSession() throws BadLocationException { | |
134 | 436 if cast(DEBUG) |
129 | 437 System.out.println("AbstractLineTracker: Flushing rewrite session: " + fActiveRewriteSession); //$NON-NLS-1$ |
438 | |
439 Iterator e= fPendingRequests.iterator(); | |
440 | |
441 fPendingRequests= null; | |
442 fActiveRewriteSession= null; | |
443 | |
444 while (e.hasNext()) { | |
134 | 445 Request request= cast(Request) e.next(); |
129 | 446 if (request.isReplaceRequest()) |
447 replace(request.offset, request.length, request.text); | |
448 else | |
449 set(request.text); | |
450 } | |
451 } | |
452 | |
453 /** | |
454 * Checks the presence of a rewrite session and flushes it. | |
455 * | |
456 * @throws BadLocationException in case flushing does not succeed | |
457 * @since 3.1 | |
458 */ | |
459 protected final void checkRewriteSession() throws BadLocationException { | |
460 if (hasActiveRewriteSession()) | |
461 flushRewriteSession(); | |
462 } | |
463 } |