Mercurial > projects > dwt-addons
annotate dwtx/jface/text/TextPresentation.d @ 158:25f1f92fa3df
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 26 Aug 2008 02:46:34 +0200 |
| parents | f70d9508c95c |
| children | 1a5b8f8129df |
| 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.TextPresentation; | |
| 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.AbstractLineTracker; // packageimport | |
| 94 import dwtx.jface.text.TreeLineTracker; // packageimport | |
| 95 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
| 96 import dwtx.jface.text.Region; // packageimport | |
| 97 import dwtx.jface.text.ITextViewer; // packageimport | |
| 98 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
| 99 import dwtx.jface.text.MarginPainter; // packageimport | |
| 100 import dwtx.jface.text.IPaintPositionManager; // 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 | |
| 129 | 156 import dwt.dwthelper.utils; |
|
153
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157 import dwtx.dwtxhelper.Collection; |
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158 |
| 129 | 159 import dwt.DWT; |
| 160 import dwt.custom.StyleRange; | |
| 161 import dwt.custom.StyledText; | |
| 162 import dwtx.core.runtime.Assert; | |
| 163 | |
| 164 | |
| 165 /** | |
| 166 * Describes the presentation styles for a section of an indexed text such as a | |
| 167 * document or string. A text presentation defines a default style for the whole | |
| 168 * section and in addition style differences for individual subsections. Text | |
| 169 * presentations can be narrowed down to a particular result window. All methods | |
| 170 * are result window aware, i.e. ranges outside the result window are always | |
| 171 * ignored. | |
| 172 * <p> | |
| 173 * All iterators provided by a text presentation assume that they enumerate non | |
| 174 * overlapping, consecutive ranges inside the default range. Thus, all these | |
| 175 * iterators do not include the default range. The default style range must be | |
| 176 * explicitly asked for using <code>getDefaultStyleRange</code>. | |
| 177 */ | |
| 178 public class TextPresentation { | |
| 179 | |
| 180 /** | |
| 181 * Applies the given presentation to the given text widget. Helper method. | |
| 182 * | |
| 183 * @param presentation the style information | |
| 184 * @param text the widget to which to apply the style information | |
| 185 * @since 2.0 | |
| 186 */ | |
| 187 public static void applyTextPresentation(TextPresentation presentation, StyledText text) { | |
| 188 | |
| 189 StyleRange[] ranges= new StyleRange[presentation.getDenumerableRanges()]; | |
| 190 | |
| 191 int i= 0; | |
| 192 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 193 while (e.hasNext()) | |
| 134 | 194 ranges[i++]= cast(StyleRange) e.next(); |
| 129 | 195 |
| 196 text.setStyleRanges(ranges); | |
| 197 } | |
| 198 | |
| 199 | |
| 200 | |
| 201 | |
| 202 /** | |
| 203 * Enumerates all the <code>StyleRange</code>s included in the presentation. | |
| 204 */ | |
| 205 class FilterIterator : Iterator { | |
| 206 | |
| 207 /** The index of the next style range to be enumerated */ | |
| 208 protected int fIndex; | |
| 209 /** The upper bound of the indices of style ranges to be enumerated */ | |
| 210 protected int fLength; | |
| 211 /** Indicates whether ranges similar to the default range should be enumerated */ | |
| 212 protected bool fSkipDefaults; | |
| 213 /** The result window */ | |
| 214 protected IRegion fWindow; | |
| 215 | |
| 216 /** | |
| 217 * <code>skipDefaults</code> tells the enumeration to skip all those style ranges | |
| 218 * which define the same style as the presentation's default style range. | |
| 219 * | |
| 220 * @param skipDefaults <code>false</code> if ranges similar to the default range should be enumerated | |
| 221 */ | |
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222 protected this(bool skipDefaults) { |
| 129 | 223 |
| 224 fSkipDefaults= skipDefaults; | |
| 225 | |
| 226 fWindow= fResultWindow; | |
| 227 fIndex= getFirstIndexInWindow(fWindow); | |
| 228 fLength= getFirstIndexAfterWindow(fWindow); | |
| 229 | |
| 230 if (fSkipDefaults) | |
| 231 computeIndex(); | |
| 232 } | |
| 233 | |
| 234 /* | |
| 235 * @see Iterator#next() | |
| 236 */ | |
| 237 public Object next() { | |
| 238 try { | |
| 134 | 239 StyleRange r= cast(StyleRange) fRanges.get(fIndex++); |
| 129 | 240 return createWindowRelativeRange(fWindow, r); |
| 241 } catch (ArrayIndexOutOfBoundsException x) { | |
| 242 throw new NoSuchElementException(); | |
| 243 } finally { | |
| 244 if (fSkipDefaults) | |
| 245 computeIndex(); | |
| 246 } | |
| 247 } | |
| 248 | |
| 249 /* | |
| 250 * @see Iterator#hasNext() | |
| 251 */ | |
| 252 public bool hasNext() { | |
| 253 return fIndex < fLength; | |
| 254 } | |
| 255 | |
| 256 /* | |
| 257 * @see Iterator#remove() | |
| 258 */ | |
| 259 public void remove() { | |
| 260 throw new UnsupportedOperationException(); | |
| 261 } | |
| 262 | |
| 263 /** | |
| 264 * Returns whether the given object should be skipped. | |
| 265 * | |
| 266 * @param o the object to be checked | |
| 267 * @return <code>true</code> if the object should be skipped by the iterator | |
| 268 */ | |
| 269 protected bool skip(Object o) { | |
| 134 | 270 StyleRange r= cast(StyleRange) o; |
| 129 | 271 return r.similarTo(fDefaultRange); |
| 272 } | |
| 273 | |
| 274 /** | |
| 275 * Computes the index of the styled range that is the next to be enumerated. | |
| 276 */ | |
| 277 protected void computeIndex() { | |
| 278 while (fIndex < fLength && skip(fRanges.get(fIndex))) | |
| 279 ++ fIndex; | |
| 280 } | |
| 281 } | |
| 282 | |
| 283 /** The style information for the range covered by the whole presentation */ | |
| 284 private StyleRange fDefaultRange; | |
| 285 /** The member ranges of the presentation */ | |
| 286 private ArrayList fRanges; | |
| 287 /** A clipping region against which the presentation can be clipped when asked for results */ | |
| 288 private IRegion fResultWindow; | |
| 289 /** | |
| 290 * The optional extent for this presentation. | |
| 291 * @since 3.0 | |
| 292 */ | |
| 293 private IRegion fExtent; | |
| 294 | |
| 295 | |
| 296 /** | |
| 297 * Creates a new empty text presentation. | |
| 298 */ | |
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299 public this() { |
| 129 | 300 fRanges= new ArrayList(50); |
| 301 } | |
| 302 | |
| 303 /** | |
| 304 * Creates a new empty text presentation. <code>sizeHint</code> tells the | |
| 305 * expected size of this presentation. | |
| 306 * | |
| 307 * @param sizeHint the expected size of this presentation | |
| 308 */ | |
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309 public this(int sizeHint) { |
| 129 | 310 Assert.isTrue(sizeHint > 0); |
| 311 fRanges= new ArrayList(sizeHint); | |
| 312 } | |
| 313 | |
| 314 /** | |
| 315 * Creates a new empty text presentation with the given extent. | |
| 316 * <code>sizeHint</code> tells the expected size of this presentation. | |
| 317 * | |
| 318 * @param extent the extent of the created <code>TextPresentation</code> | |
| 319 * @param sizeHint the expected size of this presentation | |
| 320 * @since 3.0 | |
| 321 */ | |
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322 public this(IRegion extent, int sizeHint) { |
| 129 | 323 this(sizeHint); |
| 324 Assert.isNotNull(extent); | |
| 325 fExtent= extent; | |
| 326 } | |
| 327 | |
| 328 /** | |
| 329 * Sets the result window for this presentation. When dealing with | |
| 330 * this presentation all ranges which are outside the result window | |
| 331 * are ignored. For example, the size of the presentation is 0 | |
| 332 * when there is no range inside the window even if there are ranges | |
| 333 * outside the window. All methods are aware of the result window. | |
| 334 * | |
| 335 * @param resultWindow the result window | |
| 336 */ | |
| 337 public void setResultWindow(IRegion resultWindow) { | |
| 338 fResultWindow= resultWindow; | |
| 339 } | |
| 340 | |
| 341 /** | |
| 342 * Set the default style range of this presentation. | |
| 343 * The default style range defines the overall area covered | |
| 344 * by this presentation and its style information. | |
| 345 * | |
| 346 * @param range the range describing the default region | |
| 347 */ | |
| 348 public void setDefaultStyleRange(StyleRange range) { | |
| 349 fDefaultRange= range; | |
| 350 } | |
| 351 | |
| 352 /** | |
| 353 * Returns this presentation's default style range. The returned <code>StyleRange</code> | |
| 354 * is relative to the start of the result window. | |
| 355 * | |
| 356 * @return this presentation's default style range | |
| 357 */ | |
| 358 public StyleRange getDefaultStyleRange() { | |
| 359 StyleRange range= createWindowRelativeRange(fResultWindow, fDefaultRange); | |
| 360 if (range is null) | |
| 361 return null; | |
| 134 | 362 return cast(StyleRange)range.clone(); |
| 129 | 363 |
| 364 } | |
| 365 | |
| 366 /** | |
| 367 * Add the given range to the presentation. The range must be a | |
| 368 * subrange of the presentation's default range. | |
| 369 * | |
| 370 * @param range the range to be added | |
| 371 */ | |
| 372 public void addStyleRange(StyleRange range) { | |
| 373 checkConsistency(range); | |
| 374 fRanges.add(range); | |
| 375 } | |
| 376 | |
| 377 /** | |
| 378 * Replaces the given range in this presentation. The range must be a | |
| 379 * subrange of the presentation's default range. | |
| 380 * | |
| 381 * @param range the range to be added | |
| 382 * @since 3.0 | |
| 383 */ | |
| 384 public void replaceStyleRange(StyleRange range) { | |
| 385 applyStyleRange(range, false); | |
| 386 } | |
| 387 | |
| 388 /** | |
| 389 * Merges the given range into this presentation. The range must be a | |
| 390 * subrange of the presentation's default range. | |
| 391 * | |
| 392 * @param range the range to be added | |
| 393 * @since 3.0 | |
| 394 */ | |
| 395 public void mergeStyleRange(StyleRange range) { | |
| 396 applyStyleRange(range, true); | |
| 397 } | |
| 398 | |
| 399 /** | |
| 400 * Applies the given range to this presentation. The range must be a | |
| 401 * subrange of the presentation's default range. | |
| 402 * | |
| 403 * @param range the range to be added | |
| 404 * @param merge <code>true</code> if the style should be merged instead of replaced | |
| 405 * @since 3.0 | |
| 406 */ | |
| 407 private void applyStyleRange(StyleRange range, bool merge) { | |
| 408 if (range.length is 0) | |
| 409 return; | |
| 410 | |
| 411 checkConsistency(range); | |
| 412 | |
| 413 int start= range.start; | |
| 414 int length= range.length; | |
| 415 int end= start + length; | |
| 416 | |
| 417 if (fRanges.size() is 0) { | |
| 418 StyleRange defaultRange= getDefaultStyleRange(); | |
| 419 if (defaultRange is null) | |
| 420 defaultRange= range; | |
| 421 | |
| 422 defaultRange.start= start; | |
| 423 defaultRange.length= length; | |
| 424 applyStyle(range, defaultRange, merge); | |
| 425 fRanges.add(defaultRange); | |
| 426 } else { | |
| 427 IRegion rangeRegion= new Region(start, length); | |
| 428 int first= getFirstIndexInWindow(rangeRegion); | |
| 429 | |
| 430 if (first is fRanges.size()) { | |
| 431 StyleRange defaultRange= getDefaultStyleRange(); | |
| 432 if (defaultRange is null) | |
| 433 defaultRange= range; | |
| 434 defaultRange.start= start; | |
| 435 defaultRange.length= length; | |
| 436 applyStyle(range, defaultRange, merge); | |
| 437 fRanges.add(defaultRange); | |
| 438 return; | |
| 439 } | |
| 440 | |
| 441 int last= getFirstIndexAfterWindow(rangeRegion); | |
| 442 for (int i= first; i < last && length > 0; i++) { | |
| 443 | |
| 134 | 444 StyleRange current= cast(StyleRange)fRanges.get(i); |
| 129 | 445 int currentStart= current.start; |
| 446 int currentEnd= currentStart + current.length; | |
| 447 | |
| 448 if (end <= currentStart) { | |
| 449 fRanges.add(i, range); | |
| 450 return; | |
| 451 } | |
| 452 | |
| 453 if (start >= currentEnd) | |
| 454 continue; | |
| 455 | |
| 456 StyleRange currentCopy= null; | |
| 457 if (end < currentEnd) | |
| 134 | 458 currentCopy= cast(StyleRange)current.clone(); |
| 129 | 459 |
| 460 if (start < currentStart) { | |
| 461 // Apply style to new default range and add it | |
| 462 StyleRange defaultRange= getDefaultStyleRange(); | |
| 463 if (defaultRange is null) | |
| 464 defaultRange= new StyleRange(); | |
| 465 | |
| 466 defaultRange.start= start; | |
| 467 defaultRange.length= currentStart - start; | |
| 468 applyStyle(range, defaultRange, merge); | |
| 469 fRanges.add(i, defaultRange); | |
| 470 i++; last++; | |
| 471 | |
| 472 | |
| 473 // Apply style to first part of current range | |
| 474 current.length= Math.min(end, currentEnd) - currentStart; | |
| 475 applyStyle(range, current, merge); | |
| 476 } | |
| 477 | |
| 478 if (start >= currentStart) { | |
| 479 // Shorten the current range | |
| 480 current.length= start - currentStart; | |
| 481 | |
| 482 // Apply the style to the rest of the current range and add it | |
| 483 if (current.length > 0) { | |
| 134 | 484 current= cast(StyleRange)current.clone(); |
| 129 | 485 i++; last++; |
| 486 fRanges.add(i, current); | |
| 487 } | |
| 488 applyStyle(range, current, merge); | |
| 489 current.start= start; | |
| 490 current.length= Math.min(end, currentEnd) - start; | |
| 491 } | |
| 492 | |
| 493 if (end < currentEnd) { | |
| 494 // Add rest of current range | |
| 495 currentCopy.start= end; | |
| 496 currentCopy.length= currentEnd - end; | |
| 497 i++; last++; | |
| 498 fRanges.add(i, currentCopy); | |
| 499 } | |
| 500 | |
| 501 // Update range | |
| 502 range.start= currentEnd; | |
| 503 range.length= Math.max(end - currentEnd, 0); | |
| 504 start= range.start; | |
| 505 length= range.length; | |
| 506 } | |
| 507 if (length > 0) { | |
| 508 // Apply style to new default range and add it | |
| 509 StyleRange defaultRange= getDefaultStyleRange(); | |
| 510 if (defaultRange is null) | |
| 511 defaultRange= range; | |
| 512 defaultRange.start= start; | |
| 513 defaultRange.length= end - start; | |
| 514 applyStyle(range, defaultRange, merge); | |
| 515 fRanges.add(last, defaultRange); | |
| 516 } | |
| 517 } | |
| 518 } | |
| 519 | |
| 520 /** | |
| 521 * Replaces the given ranges in this presentation. Each range must be a | |
| 522 * subrange of the presentation's default range. The ranges must be ordered | |
| 523 * by increasing offset and must not overlap (but may be adjacent). | |
| 524 * | |
| 525 * @param ranges the ranges to be added | |
| 526 * @since 3.0 | |
| 527 */ | |
| 528 public void replaceStyleRanges(StyleRange[] ranges) { | |
| 529 applyStyleRanges(ranges, false); | |
| 530 } | |
| 531 | |
| 532 /** | |
| 533 * Merges the given ranges into this presentation. Each range must be a | |
| 534 * subrange of the presentation's default range. The ranges must be ordered | |
| 535 * by increasing offset and must not overlap (but may be adjacent). | |
| 536 * | |
| 537 * @param ranges the ranges to be added | |
| 538 * @since 3.0 | |
| 539 */ | |
| 540 public void mergeStyleRanges(StyleRange[] ranges) { | |
| 541 applyStyleRanges(ranges, true); | |
| 542 } | |
| 543 | |
| 544 /** | |
| 545 * Applies the given ranges to this presentation. Each range must be a | |
| 546 * subrange of the presentation's default range. The ranges must be ordered | |
| 547 * by increasing offset and must not overlap (but may be adjacent). | |
| 548 * | |
| 549 * @param ranges the ranges to be added | |
| 550 * @param merge <code>true</code> if the style should be merged instead of replaced | |
| 551 * @since 3.0 | |
| 552 */ | |
| 553 private void applyStyleRanges(StyleRange[] ranges, bool merge) { | |
| 554 int j= 0; | |
| 555 ArrayList oldRanges= fRanges; | |
| 556 ArrayList newRanges= new ArrayList(2*ranges.length + oldRanges.size()); | |
| 557 for (int i= 0, n= ranges.length; i < n; i++) { | |
| 558 StyleRange range= ranges[i]; | |
| 559 fRanges= oldRanges; // for getFirstIndexAfterWindow(...) | |
| 560 for (int m= getFirstIndexAfterWindow(new Region(range.start, range.length)); j < m; j++) | |
| 561 newRanges.add(oldRanges.get(j)); | |
| 562 fRanges= newRanges; // for mergeStyleRange(...) | |
| 563 applyStyleRange(range, merge); | |
| 564 } | |
| 565 for (int m= oldRanges.size(); j < m; j++) | |
| 566 newRanges.add(oldRanges.get(j)); | |
| 567 fRanges= newRanges; | |
| 568 } | |
| 569 | |
| 570 /** | |
|
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571 * Applies the template_'s style to the target. |
| 129 | 572 * |
|
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573 * @param template_ the style range to be used as template_ |
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574 * @param target the style range to which to apply the template_ |
| 129 | 575 * @param merge <code>true</code> if the style should be merged instead of replaced |
| 576 * @since 3.0 | |
| 577 */ | |
|
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578 private void applyStyle(StyleRange template_, StyleRange target, bool merge) { |
| 129 | 579 if (merge) { |
|
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580 if (template_.font !is null) |
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581 target.font= template_.font; |
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582 target.fontStyle|= template_.fontStyle; |
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583 |
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584 if (template_.metrics !is null) |
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585 target.metrics= template_.metrics; |
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586 |
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587 if (template_.foreground !is null) |
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588 target.foreground= template_.foreground; |
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589 if (template_.background !is null) |
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590 target.background= template_.background; |
| 129 | 591 |
|
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592 target.strikeout|= template_.strikeout; |
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593 if (template_.strikeoutColor !is null) |
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594 target.strikeoutColor= template_.strikeoutColor; |
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595 |
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596 target.underline|= template_.underline; |
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597 if (template_.underlineStyle !is DWT.NONE) |
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598 target.underlineStyle= template_.underlineStyle; |
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599 if (template_.underlineColor !is null) |
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600 target.underlineColor= template_.underlineColor; |
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601 |
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602 if (template_.borderStyle !is DWT.NONE) |
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603 target.borderStyle= template_.borderStyle; |
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604 if (template_.borderColor !is null) |
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605 target.borderColor= template_.borderColor; |
| 129 | 606 |
| 607 } else { | |
|
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608 target.font= template_.font; |
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609 target.fontStyle= template_.fontStyle; |
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610 target.metrics= template_.metrics; |
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611 target.foreground= template_.foreground; |
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612 target.background= template_.background; |
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613 target.strikeout= template_.strikeout; |
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614 target.strikeoutColor= template_.strikeoutColor; |
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615 target.underline= template_.underline; |
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616 target.underlineStyle= template_.underlineStyle; |
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617 target.underlineColor= template_.underlineColor; |
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618 target.borderStyle= template_.borderStyle; |
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619 target.borderColor= template_.borderColor; |
| 129 | 620 } |
| 621 } | |
| 622 | |
| 623 /** | |
| 624 * Checks whether the given range is a subrange of the presentation's | |
| 625 * default style range. | |
| 626 * | |
| 627 * @param range the range to be checked | |
| 628 * @exception IllegalArgumentException if range is not a subrange of the presentation's default range | |
| 629 */ | |
| 630 private void checkConsistency(StyleRange range) { | |
| 631 | |
| 632 if (range is null) | |
| 633 throw new IllegalArgumentException(); | |
| 634 | |
| 635 if (fDefaultRange !is null) { | |
| 636 | |
| 637 if (range.start < fDefaultRange.start) | |
| 638 range.start= fDefaultRange.start; | |
| 639 | |
| 640 int defaultEnd= fDefaultRange.start + fDefaultRange.length; | |
| 641 int end= range.start + range.length; | |
| 642 if (end > defaultEnd) | |
| 643 range.length -= (end - defaultEnd); | |
| 644 } | |
| 645 } | |
| 646 | |
| 647 /** | |
| 648 * Returns the index of the first range which overlaps with the | |
| 649 * specified window. | |
| 650 * | |
| 651 * @param window the window to be used for searching | |
| 652 * @return the index of the first range overlapping with the window | |
| 653 */ | |
| 654 private int getFirstIndexInWindow(IRegion window) { | |
| 655 if (window !is null) { | |
| 656 int start= window.getOffset(); | |
| 657 int i= -1, j= fRanges.size(); | |
| 658 while (j - i > 1) { | |
| 659 int k= (i + j) >> 1; | |
| 134 | 660 StyleRange r= cast(StyleRange) fRanges.get(k); |
| 129 | 661 if (r.start + r.length > start) |
| 662 j= k; | |
| 663 else | |
| 664 i= k; | |
| 665 } | |
| 666 return j; | |
| 667 } | |
| 668 return 0; | |
| 669 } | |
| 670 | |
| 671 /** | |
| 672 * Returns the index of the first range which comes after the specified window and does | |
| 673 * not overlap with this window. | |
| 674 * | |
| 675 * @param window the window to be used for searching | |
| 676 * @return the index of the first range behind the window and not overlapping with the window | |
| 677 */ | |
| 678 private int getFirstIndexAfterWindow(IRegion window) { | |
| 679 if (window !is null) { | |
| 680 int end= window.getOffset() + window.getLength(); | |
| 681 int i= -1, j= fRanges.size(); | |
| 682 while (j - i > 1) { | |
| 683 int k= (i + j) >> 1; | |
| 134 | 684 StyleRange r= cast(StyleRange) fRanges.get(k); |
| 129 | 685 if (r.start < end) |
| 686 i= k; | |
| 687 else | |
| 688 j= k; | |
| 689 } | |
| 690 return j; | |
| 691 } | |
| 692 return fRanges.size(); | |
| 693 } | |
| 694 | |
| 695 /** | |
| 696 * Returns a style range which is relative to the specified window and | |
| 697 * appropriately clipped if necessary. The original style range is not | |
| 698 * modified. | |
| 699 * | |
| 700 * @param window the reference window | |
| 701 * @param range the absolute range | |
| 702 * @return the window relative range based on the absolute range | |
| 703 */ | |
| 704 private StyleRange createWindowRelativeRange(IRegion window, StyleRange range) { | |
| 705 if (window is null || range is null) | |
| 706 return range; | |
| 707 | |
| 708 int start= range.start - window.getOffset(); | |
| 709 if (start < 0) | |
| 710 start= 0; | |
| 711 | |
| 712 int rangeEnd= range.start + range.length; | |
| 713 int windowEnd= window.getOffset() + window.getLength(); | |
| 714 int end= (rangeEnd > windowEnd ? windowEnd : rangeEnd); | |
| 715 end -= window.getOffset(); | |
| 716 | |
| 134 | 717 StyleRange newRange= cast(StyleRange) range.clone(); |
| 129 | 718 newRange.start= start; |
| 719 newRange.length= end - start; | |
| 720 return newRange; | |
| 721 } | |
| 722 | |
| 723 /** | |
| 724 * Returns the region which is relative to the specified window and | |
| 725 * appropriately clipped if necessary. | |
| 726 * | |
| 727 * @param coverage the absolute coverage | |
| 728 * @return the window relative region based on the absolute coverage | |
| 729 * @since 3.0 | |
| 730 */ | |
| 731 private IRegion createWindowRelativeRegion(IRegion coverage) { | |
| 732 if (fResultWindow is null || coverage is null) | |
| 733 return coverage; | |
| 734 | |
| 735 int start= coverage.getOffset() - fResultWindow.getOffset(); | |
| 736 if (start < 0) | |
| 737 start= 0; | |
| 738 | |
| 739 int rangeEnd= coverage.getOffset() + coverage.getLength(); | |
| 740 int windowEnd= fResultWindow.getOffset() + fResultWindow.getLength(); | |
| 741 int end= (rangeEnd > windowEnd ? windowEnd : rangeEnd); | |
| 742 end -= fResultWindow.getOffset(); | |
| 743 | |
| 744 return new Region(start, end - start); | |
| 745 } | |
| 746 | |
| 747 /** | |
| 748 * Returns an iterator which enumerates all style ranged which define a style | |
| 749 * different from the presentation's default style range. The default style range | |
| 750 * is not enumerated. | |
| 751 * | |
| 752 * @return a style range iterator | |
| 753 */ | |
| 754 public Iterator getNonDefaultStyleRangeIterator() { | |
| 755 return new FilterIterator(fDefaultRange !is null); | |
| 756 } | |
| 757 | |
| 758 /** | |
| 759 * Returns an iterator which enumerates all style ranges of this presentation | |
| 760 * except the default style range. The returned <code>StyleRange</code>s | |
| 761 * are relative to the start of the presentation's result window. | |
| 762 * | |
| 763 * @return a style range iterator | |
| 764 */ | |
| 765 public Iterator getAllStyleRangeIterator() { | |
| 766 return new FilterIterator(false); | |
| 767 } | |
| 768 | |
| 769 /** | |
| 770 * Returns whether this collection contains any style range including | |
| 771 * the default style range. | |
| 772 * | |
| 773 * @return <code>true</code> if there is no style range in this presentation | |
| 774 */ | |
| 775 public bool isEmpty() { | |
| 776 return (fDefaultRange is null && getDenumerableRanges() is 0); | |
| 777 } | |
| 778 | |
| 779 /** | |
| 780 * Returns the number of style ranges in the presentation not counting the default | |
| 781 * style range. | |
| 782 * | |
| 783 * @return the number of style ranges in the presentation excluding the default style range | |
| 784 */ | |
| 785 public int getDenumerableRanges() { | |
| 786 int size= getFirstIndexAfterWindow(fResultWindow) - getFirstIndexInWindow(fResultWindow); | |
| 787 return (size < 0 ? 0 : size); | |
| 788 } | |
| 789 | |
| 790 /** | |
| 791 * Returns the style range with the smallest offset ignoring the default style range or null | |
| 792 * if the presentation is empty. | |
| 793 * | |
| 794 * @return the style range with the smallest offset different from the default style range | |
| 795 */ | |
| 796 public StyleRange getFirstStyleRange() { | |
| 797 try { | |
| 798 | |
| 134 | 799 StyleRange range= cast(StyleRange) fRanges.get(getFirstIndexInWindow(fResultWindow)); |
| 129 | 800 return createWindowRelativeRange(fResultWindow, range); |
| 801 | |
| 802 } catch (NoSuchElementException x) { | |
| 803 } catch (IndexOutOfBoundsException x) { | |
| 804 } | |
| 805 | |
| 806 return null; | |
| 807 } | |
| 808 | |
| 809 /** | |
| 810 * Returns the style range with the highest offset ignoring the default style range. | |
| 811 * | |
| 812 * @return the style range with the highest offset different from the default style range | |
| 813 */ | |
| 814 public StyleRange getLastStyleRange() { | |
| 815 try { | |
| 816 | |
| 134 | 817 StyleRange range= cast(StyleRange) fRanges.get(getFirstIndexAfterWindow(fResultWindow) - 1); |
| 129 | 818 return createWindowRelativeRange(fResultWindow, range); |
| 819 | |
| 820 } catch (NoSuchElementException x) { | |
| 821 return null; | |
| 822 } catch (IndexOutOfBoundsException x) { | |
| 823 return null; | |
| 824 } | |
| 825 } | |
| 826 | |
| 827 /** | |
| 828 * Returns the coverage of this presentation as clipped by the presentation's | |
| 829 * result window. | |
| 830 * | |
| 831 * @return the coverage of this presentation | |
| 832 */ | |
| 833 public IRegion getCoverage() { | |
| 834 | |
| 835 if (fDefaultRange !is null) { | |
| 836 StyleRange range= getDefaultStyleRange(); | |
| 837 return new Region(range.start, range.length); | |
| 838 } | |
| 839 | |
| 840 StyleRange first= getFirstStyleRange(); | |
| 841 StyleRange last= getLastStyleRange(); | |
| 842 | |
| 843 if (first is null || last is null) | |
| 844 return null; | |
| 845 | |
| 846 return new Region(first.start, last.start - first. start + last.length); | |
| 847 } | |
| 848 | |
| 849 /** | |
| 850 * Returns the extent of this presentation clipped by the | |
| 851 * presentation's result window. | |
| 852 * | |
| 853 * @return the clipped extent | |
| 854 * @since 3.0 | |
| 855 */ | |
| 856 public IRegion getExtent() { | |
| 857 if (fExtent !is null) | |
| 858 return createWindowRelativeRegion(fExtent); | |
| 859 return getCoverage(); | |
| 860 } | |
| 861 | |
| 862 /** | |
| 863 * Clears this presentation by resetting all applied changes. | |
| 864 * @since 2.0 | |
| 865 */ | |
| 866 public void clear() { | |
| 867 fDefaultRange= null; | |
| 868 fResultWindow= null; | |
| 869 fRanges.clear(); | |
| 870 } | |
| 871 | |
| 872 | |
| 873 } |