Mercurial > projects > dwt-addons
annotate dwtx/jface/text/TextViewer.d @ 156:a9566845f1cb
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 25 Aug 2008 19:03:46 +0200 |
| parents | f70d9508c95c |
| children | 7926b636c282 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.text.TextViewer; | |
| 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.ITextViewerExtension8; // packageimport | |
| 40 import dwtx.jface.text.RegExMessages; // packageimport | |
| 41 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport | |
| 42 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport | |
| 43 import dwtx.jface.text.IWidgetTokenOwner; // packageimport | |
| 44 import dwtx.jface.text.IViewportListener; // packageimport | |
| 45 import dwtx.jface.text.GapTextStore; // packageimport | |
| 46 import dwtx.jface.text.MarkSelection; // packageimport | |
| 47 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
| 48 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport | |
| 49 import dwtx.jface.text.IInformationControlExtension; // packageimport | |
| 50 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
| 51 import dwtx.jface.text.DefaultDocumentAdapter; // 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 | |
|
153
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159 import dwtx.dwtxhelper.Collection; |
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166 |
| 129 | 167 import java.util.regex.PatternSyntaxException; |
| 168 | |
| 169 import dwt.DWT; | |
| 170 import dwt.custom.LineBackgroundEvent; | |
| 171 import dwt.custom.LineBackgroundListener; | |
| 172 import dwt.custom.MovementEvent; | |
| 173 import dwt.custom.MovementListener; | |
| 174 import dwt.custom.ST; | |
| 175 import dwt.custom.StyleRange; | |
| 176 import dwt.custom.StyledText; | |
| 177 import dwt.custom.StyledTextPrintOptions; | |
| 178 import dwt.custom.VerifyKeyListener; | |
| 179 import dwt.events.ControlEvent; | |
| 180 import dwt.events.ControlListener; | |
| 181 import dwt.events.DisposeEvent; | |
| 182 import dwt.events.DisposeListener; | |
| 183 import dwt.events.KeyEvent; | |
| 184 import dwt.events.KeyListener; | |
| 185 import dwt.events.MouseAdapter; | |
| 186 import dwt.events.MouseEvent; | |
| 187 import dwt.events.MouseListener; | |
| 188 import dwt.events.SelectionEvent; | |
| 189 import dwt.events.SelectionListener; | |
| 190 import dwt.events.TraverseEvent; | |
| 191 import dwt.events.TraverseListener; | |
| 192 import dwt.events.VerifyEvent; | |
| 193 import dwt.events.VerifyListener; | |
| 194 import dwt.graphics.Color; | |
| 195 import dwt.graphics.GC; | |
| 196 import dwt.graphics.Point; | |
| 197 import dwt.graphics.Rectangle; | |
| 198 import dwt.printing.PrintDialog; | |
| 199 import dwt.printing.Printer; | |
| 200 import dwt.printing.PrinterData; | |
| 201 import dwt.widgets.Composite; | |
| 202 import dwt.widgets.Control; | |
| 203 import dwt.widgets.Display; | |
| 204 import dwt.widgets.Event; | |
| 205 import dwt.widgets.Listener; | |
| 206 import dwt.widgets.ScrollBar; | |
| 207 import dwtx.core.runtime.Assert; | |
| 208 import dwtx.jface.internal.text.NonDeletingPositionUpdater; | |
| 209 import dwtx.jface.internal.text.StickyHoverManager; | |
| 210 import dwtx.jface.text.hyperlink.HyperlinkManager; | |
| 211 import dwtx.jface.text.hyperlink.IHyperlinkDetector; | |
| 212 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension; | |
| 213 import dwtx.jface.text.hyperlink.IHyperlinkPresenter; | |
| 214 import dwtx.jface.text.hyperlink.HyperlinkManager.DETECTION_STRATEGY; | |
| 215 import dwtx.jface.text.projection.ChildDocument; | |
| 216 import dwtx.jface.text.projection.ChildDocumentManager; | |
| 217 import dwtx.jface.viewers.IPostSelectionProvider; | |
| 218 import dwtx.jface.viewers.ISelection; | |
| 219 import dwtx.jface.viewers.ISelectionChangedListener; | |
| 220 import dwtx.jface.viewers.ISelectionProvider; | |
| 221 import dwtx.jface.viewers.SelectionChangedEvent; | |
| 222 import dwtx.jface.viewers.Viewer; | |
| 223 | |
| 224 | |
| 225 /** | |
| 226 * DWT based implementation of {@link ITextViewer} and its extension interfaces. | |
| 227 * Once the viewer and its DWT control have been created the viewer can only | |
| 228 * indirectly be disposed by disposing its DWT control. | |
| 229 * <p> | |
| 230 * Clients are supposed to instantiate a text viewer and subsequently to | |
| 231 * communicate with it exclusively using the | |
| 232 * {@link dwtx.jface.text.ITextViewer} interface or any of the | |
| 233 * implemented extension interfaces. | |
| 234 * <p> | |
| 235 * A text viewer serves as text operation target. It only partially supports the | |
| 236 * external control of the enable state of its text operations. A text viewer is | |
| 237 * also a widget token owner. Anything that wants to display an overlay window | |
| 238 * on top of a text viewer should implement the | |
| 239 * {@link dwtx.jface.text.IWidgetTokenKeeper} interface and participate | |
| 240 * in the widget token negotiation between the text viewer and all its potential | |
| 241 * widget token keepers. | |
| 242 * <p> | |
| 243 * This class is not intended to be subclassed outside the JFace Text component.</p> | |
| 244 * @noextend This class is not intended to be subclassed by clients. | |
| 245 */ | |
| 246 public class TextViewer : Viewer , | |
| 247 ITextViewer, ITextViewerExtension, ITextViewerExtension2, ITextViewerExtension4, ITextViewerExtension6, ITextViewerExtension7, ITextViewerExtension8, | |
| 248 IEditingSupportRegistry, ITextOperationTarget, ITextOperationTargetExtension, | |
| 249 IWidgetTokenOwner, IWidgetTokenOwnerExtension, IPostSelectionProvider { | |
| 250 | |
| 251 /** Internal flag to indicate the debug state. */ | |
| 147 | 252 public static const bool TRACE_ERRORS= false; |
| 129 | 253 /** Internal flag to indicate the debug state. */ |
| 147 | 254 private static const bool TRACE_DOUBLE_CLICK= false; |
| 129 | 255 |
| 256 /** | |
| 257 * Width constraint for text hovers (in characters). | |
| 258 * @since 3.4 | |
| 259 */ | |
| 147 | 260 private static const int TEXT_HOVER_WIDTH_CHARS= 100; //used to be 60 (text font) |
| 129 | 261 /** |
| 262 * Height constraint for text hovers (in characters). | |
| 263 * @since 3.4 | |
| 264 */ | |
| 147 | 265 private static const int TEXT_HOVER_HEIGHT_CHARS= 12; //used to be 10 (text font) |
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266 |
| 129 | 267 /** |
| 268 * Represents a replace command that brings the text viewer's text widget | |
| 269 * back in synchronization with text viewer's document after the document | |
| 270 * has been changed. | |
| 271 */ | |
| 272 protected class WidgetCommand { | |
| 273 | |
| 274 /** The document event encapsulated by this command. */ | |
| 275 public DocumentEvent event; | |
| 276 /** The start of the event. */ | |
| 277 public int start; | |
| 278 /** The length of the event. */ | |
| 279 public int length; | |
| 280 /** The inserted and replaced text segments of <code>event</code>. */ | |
| 281 public String text; | |
| 282 /** The replaced text segments of <code>event</code>. */ | |
| 283 public String preservedText; | |
| 284 | |
| 285 /** | |
| 286 * Translates a document event into the presentation coordinates of this text viewer. | |
| 287 * | |
| 288 * @param e the event to be translated | |
| 289 */ | |
| 290 public void setEvent(DocumentEvent e) { | |
| 291 | |
| 292 event= e; | |
| 293 | |
| 294 start= e.getOffset(); | |
| 295 length= e.getLength(); | |
| 296 text= e.getText(); | |
| 297 | |
| 298 if (length !is 0) { | |
| 299 try { | |
| 300 | |
| 138 | 301 if ( cast(SlaveDocumentEvent)e ) { |
| 134 | 302 SlaveDocumentEvent slave= cast(SlaveDocumentEvent) e; |
| 129 | 303 DocumentEvent master= slave.getMasterEvent(); |
| 304 if (master !is null) | |
| 305 preservedText= master.getDocument().get(master.getOffset(), master.getLength()); | |
| 306 } else { | |
| 307 preservedText= e.getDocument().get(e.getOffset(), e.getLength()); | |
| 308 } | |
| 309 | |
| 310 } catch (BadLocationException x) { | |
| 311 preservedText= null; | |
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312 if (TRACE_ERRORS) |
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313 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.WidgetCommand.setEvent")); //$NON-NLS-1$ |
| 129 | 314 } |
| 315 } else | |
| 316 preservedText= null; | |
| 317 } | |
| 318 } | |
| 319 | |
| 320 | |
| 321 /** | |
| 322 * Connects a text double click strategy to this viewer's text widget. | |
| 323 * Calls the double click strategies when the mouse has | |
| 324 * been clicked inside the text editor. | |
| 325 */ | |
| 326 class TextDoubleClickStrategyConnector : MouseAdapter , MovementListener { | |
| 327 | |
| 328 /** Internal flag to remember the last double-click selection. */ | |
| 329 private Point fDoubleClickSelection; | |
| 330 | |
| 331 /* | |
| 332 * @see dwt.events.MouseAdapter#mouseUp(dwt.events.MouseEvent) | |
| 333 * @since 3.2 | |
| 334 */ | |
| 335 public void mouseUp(MouseEvent e) { | |
| 336 fDoubleClickSelection= null; | |
| 337 } | |
| 338 | |
| 339 /* | |
| 340 * @see dwt.custom.MovementListener#getNextOffset(dwt.custom.MovementEvent) | |
| 341 * @since 3.3 | |
| 342 */ | |
| 343 public void getNextOffset(MovementEvent event) { | |
| 344 if (event.movement !is DWT.MOVEMENT_WORD_END) | |
| 345 return; | |
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346 |
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347 if (TRACE_DOUBLE_CLICK) { |
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348 System.out_.println("\n+++"); //$NON-NLS-1$ |
| 129 | 349 print(event); |
| 350 } | |
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351 |
| 129 | 352 if (fDoubleClickSelection !is null) { |
| 353 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 354 event.newOffset= fDoubleClickSelection.y; | |
| 355 } | |
| 356 } | |
| 357 | |
| 358 /* | |
| 359 * @see dwt.custom.MovementListener#getPreviousOffset(dwt.custom.MovementEvent) | |
| 360 * @since 3.3 | |
| 361 */ | |
| 362 public void getPreviousOffset(MovementEvent event) { | |
| 363 if (event.movement !is DWT.MOVEMENT_WORD_START) | |
| 364 return; | |
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365 |
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366 if (TRACE_DOUBLE_CLICK) { |
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367 System.out_.println("\n---"); //$NON-NLS-1$ |
| 129 | 368 print(event); |
| 369 } | |
| 370 if (fDoubleClickSelection is null) { | |
| 134 | 371 ITextDoubleClickStrategy s= cast(ITextDoubleClickStrategy) selectContentTypePlugin(getSelectedRange().x, fDoubleClickStrategies); |
| 129 | 372 if (s !is null) { |
| 373 StyledText textWidget= getTextWidget(); | |
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374 s.doubleClicked(this.outer); |
| 129 | 375 fDoubleClickSelection= textWidget.getSelection(); |
| 376 event.newOffset= fDoubleClickSelection.x; | |
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377 if (TRACE_DOUBLE_CLICK) |
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378 System.out_.println("- setting selection: x= " + fDoubleClickSelection.x + ", y= " + fDoubleClickSelection.y); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 379 } |
| 380 } else { | |
| 381 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 382 event.newOffset= fDoubleClickSelection.x; | |
| 383 } | |
| 384 } | |
| 385 } | |
| 386 | |
| 387 /** | |
| 388 * Print trace info about <code>MovementEvent</code>. | |
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389 * |
| 129 | 390 * @param e the event to print |
| 391 * @since 3.3 | |
| 392 */ | |
| 393 private void print(MovementEvent e) { | |
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394 System.out_.println("line offset: " + e.lineOffset); //$NON-NLS-1$ |
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395 System.out_.println("line: " + e.lineText); //$NON-NLS-1$ |
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396 System.out_.println("type: " + e.movement); //$NON-NLS-1$ |
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397 System.out_.println("offset: " + e.offset); //$NON-NLS-1$ |
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398 System.out_.println("newOffset: " + e.newOffset); //$NON-NLS-1$ |
| 129 | 399 } |
| 400 | |
| 401 /** | |
| 402 * Monitors the area of the viewer's document that is visible in the viewer. | |
| 403 * If the area might have changed, it informs the text viewer about this | |
| 404 * potential change and its origin. The origin is internally used for optimization | |
| 405 * purposes. | |
| 406 */ | |
| 407 class ViewportGuard : MouseAdapter | |
| 408 , ControlListener, KeyListener, SelectionListener { | |
| 409 | |
| 410 /* | |
| 411 * @see ControlListener#controlResized(ControlEvent) | |
| 412 */ | |
| 413 public void controlResized(ControlEvent e) { | |
| 414 updateViewportListeners(RESIZE); | |
| 415 } | |
| 416 | |
| 417 /* | |
| 418 * @see ControlListener#controlMoved(ControlEvent) | |
| 419 */ | |
| 420 public void controlMoved(ControlEvent e) { | |
| 421 } | |
| 422 | |
| 423 /* | |
| 424 * @see KeyListener#keyReleased | |
| 425 */ | |
| 426 public void keyReleased(KeyEvent e) { | |
| 427 updateViewportListeners(KEY); | |
| 428 } | |
| 429 | |
| 430 /* | |
| 431 * @see KeyListener#keyPressed | |
| 432 */ | |
| 433 public void keyPressed(KeyEvent e) { | |
| 434 updateViewportListeners(KEY); | |
| 435 } | |
| 436 | |
| 437 /* | |
| 438 * @see MouseListener#mouseUp | |
| 439 */ | |
| 440 public void mouseUp(MouseEvent e) { | |
| 441 if (fTextWidget !is null) | |
| 442 fTextWidget.removeSelectionListener(this); | |
| 443 updateViewportListeners(MOUSE_END); | |
| 444 } | |
| 445 | |
| 446 /* | |
| 447 * @see MouseListener#mouseDown | |
| 448 */ | |
| 449 public void mouseDown(MouseEvent e) { | |
| 450 if (fTextWidget !is null) | |
| 451 fTextWidget.addSelectionListener(this); | |
| 452 } | |
| 453 | |
| 454 /* | |
| 455 * @see SelectionListener#widgetSelected | |
| 456 */ | |
| 457 public void widgetSelected(SelectionEvent e) { | |
| 458 if (e.widget is fScroller) | |
| 459 updateViewportListeners(SCROLLER); | |
| 460 else | |
| 461 updateViewportListeners(MOUSE); | |
| 462 } | |
| 463 | |
| 464 /* | |
| 465 * @see SelectionListener#widgetDefaultSelected | |
| 466 */ | |
| 467 public void widgetDefaultSelected(SelectionEvent e) {} | |
| 468 } | |
| 469 | |
| 470 /** | |
| 471 * This position updater is used to keep the selection during text shift operations. | |
| 472 */ | |
| 473 static class ShiftPositionUpdater : DefaultPositionUpdater { | |
| 474 | |
| 475 /** | |
| 476 * Creates the position updater for the given category. | |
| 477 * | |
| 478 * @param category the category this updater takes care of | |
| 479 */ | |
|
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480 protected this(String category) { |
| 129 | 481 super(category); |
| 482 } | |
| 483 | |
| 484 /** | |
| 485 * If an insertion happens at the selection's start offset, | |
| 486 * the position is extended rather than shifted. | |
| 487 */ | |
| 488 protected void adaptToInsert() { | |
| 489 | |
| 490 int myStart= fPosition.offset; | |
| 491 int myEnd= fPosition.offset + fPosition.length -1; | |
| 492 myEnd= Math.max(myStart, myEnd); | |
| 493 | |
| 494 int yoursStart= fOffset; | |
| 495 int yoursEnd= fOffset + fReplaceLength -1; | |
| 496 yoursEnd= Math.max(yoursStart, yoursEnd); | |
| 497 | |
| 498 if (myEnd < yoursStart) | |
| 499 return; | |
| 500 | |
| 501 if (myStart <= yoursStart) { | |
| 502 fPosition.length += fReplaceLength; | |
| 503 return; | |
| 504 } | |
| 505 | |
| 506 if (myStart > yoursStart) | |
| 507 fPosition.offset += fReplaceLength; | |
| 508 } | |
| 509 } | |
| 510 | |
| 511 /** | |
| 512 * Internal document listener on the visible document. | |
| 513 */ | |
| 514 class VisibleDocumentListener : IDocumentListener { | |
| 515 | |
| 516 /* | |
| 517 * @see IDocumentListener#documentAboutToBeChanged | |
| 518 */ | |
| 519 public void documentAboutToBeChanged(DocumentEvent e) { | |
| 520 if (e.getDocument() is getVisibleDocument()) | |
| 521 fWidgetCommand.setEvent(e); | |
| 522 handleVisibleDocumentAboutToBeChanged(e); | |
| 523 } | |
| 524 | |
| 525 /* | |
| 526 * @see IDocumentListener#documentChanged | |
| 527 */ | |
| 528 public void documentChanged(DocumentEvent e) { | |
| 529 if (fWidgetCommand.event is e) | |
| 530 updateTextListeners(fWidgetCommand); | |
| 531 fLastSentSelectionChange= null; | |
| 532 handleVisibleDocumentChanged(e); | |
| 533 } | |
| 534 } | |
| 535 | |
| 536 /** | |
| 537 * Internal verify listener. | |
| 538 */ | |
| 539 class TextVerifyListener : VerifyListener { | |
| 540 | |
| 541 /** | |
| 542 * Indicates whether verify events are forwarded or ignored. | |
| 543 * @since 2.0 | |
| 544 */ | |
| 545 private bool fForward= true; | |
| 546 | |
| 547 /** | |
| 548 * Tells the listener to forward received events. | |
| 549 * | |
| 550 * @param forward <code>true</code> if forwarding should be enabled. | |
| 551 * @since 2.0 | |
| 552 */ | |
| 553 public void forward(bool forward) { | |
| 554 fForward= forward; | |
| 555 } | |
| 556 | |
| 557 /* | |
| 558 * @see VerifyListener#verifyText(VerifyEvent) | |
| 559 */ | |
| 560 public void verifyText(VerifyEvent e) { | |
| 561 if (fForward) | |
| 562 handleVerifyEvent(e); | |
| 563 } | |
| 564 } | |
| 565 | |
| 566 /** | |
| 567 * The viewer's manager responsible for registered verify key listeners. | |
| 568 * Uses batches rather than robust iterators because of performance issues. | |
| 569 * <p> | |
| 570 * The implementation is reentrant, i.e. installed listeners may trigger | |
| 571 * further <code>VerifyKeyEvent</code>s that may cause other listeners to be | |
| 572 * installed, but not thread safe. | |
| 573 * </p> | |
| 574 * @since 2.0 | |
| 575 */ | |
| 576 class VerifyKeyListenersManager : VerifyKeyListener { | |
| 577 | |
| 578 /** | |
| 579 * Represents a batched addListener/removeListener command. | |
| 580 */ | |
| 581 class Batch { | |
| 582 /** The index at which to insert the listener. */ | |
| 583 int index; | |
| 584 /** The listener to be inserted. */ | |
| 585 VerifyKeyListener listener; | |
| 586 | |
| 587 /** | |
| 588 * Creates a new batch containing the given listener for the given index. | |
| 589 * | |
| 590 * @param l the listener to be added | |
| 591 * @param i the index at which to insert the listener | |
| 592 */ | |
|
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593 public this(VerifyKeyListener l, int i) { |
| 129 | 594 listener= l; |
| 595 index= i; | |
| 596 } | |
| 597 } | |
| 598 | |
| 599 /** List of registered verify key listeners. */ | |
| 600 private List fListeners= new ArrayList(); | |
| 601 /** List of pending batches. */ | |
| 602 private List fBatched= new ArrayList(); | |
| 603 /** The reentrance count. */ | |
| 604 private int fReentranceCount= 0; | |
| 605 | |
| 606 /* | |
| 607 * @see VerifyKeyListener#verifyKey(VerifyEvent) | |
| 608 */ | |
| 609 public void verifyKey(VerifyEvent event) { | |
| 610 if (fListeners.isEmpty()) | |
| 611 return; | |
| 612 | |
| 613 try { | |
| 614 fReentranceCount++; | |
| 615 Iterator iterator= fListeners.iterator(); | |
| 616 while (iterator.hasNext() && event.doit) { | |
| 134 | 617 VerifyKeyListener listener= cast(VerifyKeyListener) iterator.next(); |
| 129 | 618 listener.verifyKey(event); // we might trigger reentrant calls on GTK |
| 619 } | |
| 620 } finally { | |
| 621 fReentranceCount--; | |
| 622 } | |
| 623 if (fReentranceCount is 0) | |
| 624 processBatchedRequests(); | |
| 625 } | |
| 626 | |
| 627 /** | |
| 628 * Processes the pending batched requests. | |
| 629 */ | |
| 630 private void processBatchedRequests() { | |
| 631 if (!fBatched.isEmpty()) { | |
| 632 Iterator e= fBatched.iterator(); | |
| 633 while (e.hasNext()) { | |
| 134 | 634 Batch batch= cast(Batch) e.next(); |
| 129 | 635 insertListener(batch.listener, batch.index); |
| 636 } | |
| 637 fBatched.clear(); | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 /** | |
| 642 * Returns the number of registered verify key listeners. | |
| 643 * | |
| 644 * @return the number of registered verify key listeners | |
| 645 */ | |
| 646 public int numberOfListeners() { | |
| 647 return fListeners.size(); | |
| 648 } | |
| 649 | |
| 650 /** | |
| 651 * Inserts the given listener at the given index or moves it | |
| 652 * to that index. | |
| 653 * | |
| 654 * @param listener the listener to be inserted | |
| 655 * @param index the index of the listener or -1 for remove | |
| 656 */ | |
| 657 public void insertListener(VerifyKeyListener listener, int index) { | |
| 658 | |
| 659 if (index is -1) { | |
| 660 removeListener(listener); | |
| 661 } else if (listener !is null) { | |
| 662 | |
| 663 if (fReentranceCount > 0) { | |
| 664 | |
| 665 fBatched.add(new Batch(listener, index)); | |
| 666 | |
| 667 } else { | |
| 668 | |
| 669 int idx= -1; | |
| 670 | |
| 671 // find index based on identity | |
| 672 int size= fListeners.size(); | |
| 673 for (int i= 0; i < size; i++) { | |
| 674 if (listener is fListeners.get(i)) { | |
| 675 idx= i; | |
| 676 break; | |
| 677 } | |
| 678 } | |
| 679 | |
| 680 // move or add it | |
| 681 if (idx !is index) { | |
| 682 | |
| 683 if (idx !is -1) | |
| 684 fListeners.remove(idx); | |
| 685 | |
| 686 if (index > fListeners.size()) | |
| 687 fListeners.add(listener); | |
| 688 else | |
| 689 fListeners.add(index, listener); | |
| 690 } | |
| 691 | |
| 692 if (size is 0) // checking old size, i.e. current size is size + 1 | |
| 693 install(); | |
| 694 } | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 /** | |
| 699 * Removes the given listener. | |
| 700 * | |
| 701 * @param listener the listener to be removed | |
| 702 */ | |
| 703 public void removeListener(VerifyKeyListener listener) { | |
| 704 if (listener is null) | |
| 705 return; | |
| 706 | |
| 707 if (fReentranceCount > 0) { | |
| 708 | |
| 709 fBatched.add(new Batch(listener, -1)); | |
| 710 | |
| 711 } else { | |
| 712 | |
| 713 int size= fListeners.size(); | |
| 714 for (int i= 0; i < size; i++) { | |
| 715 if (listener is fListeners.get(i)) { | |
| 716 fListeners.remove(i); | |
| 717 if (size is 1) // checking old size, i.e. current size is size - 1 | |
| 718 uninstall(); | |
| 719 return; | |
| 720 } | |
| 721 } | |
| 722 } | |
| 723 } | |
| 724 | |
| 725 /** | |
| 726 * Installs this manager. | |
| 727 */ | |
| 728 private void install() { | |
| 729 StyledText textWidget= getTextWidget(); | |
| 730 if (textWidget !is null && !textWidget.isDisposed()) | |
| 731 textWidget.addVerifyKeyListener(this); | |
| 732 } | |
| 733 | |
| 734 /** | |
| 735 * Uninstalls this manager. | |
| 736 */ | |
| 737 private void uninstall() { | |
| 738 StyledText textWidget= getTextWidget(); | |
| 739 if (textWidget !is null && !textWidget.isDisposed()) | |
| 740 textWidget.removeVerifyKeyListener(this); | |
| 741 } | |
| 742 } | |
| 743 | |
| 744 | |
| 745 /** | |
| 746 * Reification of a range in which a find replace operation is performed. This range is visually | |
| 747 * highlighted in the viewer as long as the replace operation is in progress. | |
| 748 * | |
| 749 * @since 2.0 | |
| 750 */ | |
| 751 class FindReplaceRange : LineBackgroundListener, ITextListener, IPositionUpdater { | |
| 752 | |
| 753 /** Internal name for the position category used to update the range. */ | |
| 146 | 754 private const static String RANGE_CATEGORY= "dwtx.jface.text.TextViewer.find.range"; //$NON-NLS-1$ |
| 129 | 755 |
| 756 /** The highlight color of this range. */ | |
| 757 private Color fHighlightColor; | |
| 758 /** The position used to lively update this range's extent. */ | |
| 759 private Position fPosition; | |
| 760 | |
| 761 /** Creates a new find/replace range with the given extent. | |
| 762 * | |
| 763 * @param range the extent of this range | |
| 764 */ | |
|
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765 public this(IRegion range) { |
| 129 | 766 setRange(range); |
| 767 } | |
| 768 | |
| 769 /** | |
| 770 * Sets the extent of this range. | |
| 771 * | |
| 772 * @param range the extent of this range | |
| 773 */ | |
| 774 public void setRange(IRegion range) { | |
| 775 fPosition= new Position(range.getOffset(), range.getLength()); | |
| 776 } | |
| 777 | |
| 778 /** | |
| 779 * Returns the extent of this range. | |
| 780 * | |
| 781 * @return the extent of this range | |
| 782 */ | |
| 783 public IRegion getRange() { | |
| 784 return new Region(fPosition.getOffset(), fPosition.getLength()); | |
| 785 } | |
| 786 | |
| 787 /** | |
| 788 * Sets the highlight color of this range. Causes the range to be redrawn. | |
| 789 * | |
| 790 * @param color the highlight color | |
| 791 */ | |
| 792 public void setHighlightColor(Color color) { | |
| 793 fHighlightColor= color; | |
| 794 paint(); | |
| 795 } | |
| 796 | |
| 797 /* | |
| 798 * @see LineBackgroundListener#lineGetBackground(LineBackgroundEvent) | |
| 799 * @since 2.0 | |
| 800 */ | |
| 801 public void lineGetBackground(LineBackgroundEvent event) { | |
| 802 /* Don't use cached line information because of patched redrawing events. */ | |
| 803 | |
| 804 if (fTextWidget !is null) { | |
| 805 int offset= widgetOffset2ModelOffset(event.lineOffset); | |
| 806 if (fPosition.includes(offset)) | |
| 807 event.lineBackground= fHighlightColor; | |
| 808 } | |
| 809 } | |
| 810 | |
| 811 /** | |
| 812 * Installs this range. The range registers itself as background | |
| 813 * line painter and text listener. Also, it creates a category with the | |
| 814 * viewer's document to maintain its own extent. | |
| 815 */ | |
| 816 public void install() { | |
| 137 | 817 this.outer.addTextListener(this); |
| 129 | 818 fTextWidget.addLineBackgroundListener(this); |
| 819 | |
| 137 | 820 IDocument document= this.outer.getDocument(); |
| 129 | 821 try { |
| 822 document.addPositionCategory(RANGE_CATEGORY); | |
| 823 document.addPosition(RANGE_CATEGORY, fPosition); | |
| 824 document.addPositionUpdater(this); | |
| 825 } catch (BadPositionCategoryException e) { | |
| 826 // should not happen | |
| 827 } catch (BadLocationException e) { | |
| 828 // should not happen | |
| 829 } | |
| 830 | |
| 831 paint(); | |
| 832 } | |
| 833 | |
| 834 /** | |
| 835 * Uninstalls this range. | |
| 836 * @see #install() | |
| 837 */ | |
| 838 public void uninstall() { | |
| 839 | |
| 840 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=19612 | |
| 841 | |
| 137 | 842 IDocument document= this.outer.getDocument(); |
| 129 | 843 if (document !is null) { |
| 844 document.removePositionUpdater(this); | |
| 845 document.removePosition(fPosition); | |
| 846 } | |
| 847 | |
| 848 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 849 fTextWidget.removeLineBackgroundListener(this); | |
| 850 | |
| 137 | 851 this.outer.removeTextListener(this); |
| 129 | 852 |
| 853 clear(); | |
| 854 } | |
| 855 | |
| 856 /** | |
| 857 * Clears the highlighting of this range. | |
| 858 */ | |
| 859 private void clear() { | |
| 860 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 861 fTextWidget.redraw(); | |
| 862 } | |
| 863 | |
| 864 /** | |
| 865 * Paints the highlighting of this range. | |
| 866 */ | |
| 867 private void paint() { | |
| 868 | |
| 869 IRegion widgetRegion= modelRange2WidgetRange(fPosition); | |
| 870 int offset= widgetRegion.getOffset(); | |
| 871 int length= widgetRegion.getLength(); | |
| 872 | |
| 873 int count= fTextWidget.getCharCount(); | |
| 874 if (offset + length >= count) { | |
| 875 length= count - offset; // clip | |
| 876 | |
| 877 Point upperLeft= fTextWidget.getLocationAtOffset(offset); | |
| 878 Point lowerRight= fTextWidget.getLocationAtOffset(offset + length); | |
| 879 int width= fTextWidget.getClientArea().width; | |
| 880 int height= fTextWidget.getLineHeight(offset + length) + lowerRight.y - upperLeft.y; | |
| 881 fTextWidget.redraw(upperLeft.x, upperLeft.y, width, height, false); | |
| 882 } | |
| 883 | |
| 884 fTextWidget.redrawRange(offset, length, true); | |
| 885 } | |
| 886 | |
| 887 /* | |
| 888 * @see ITextListener#textChanged(TextEvent) | |
| 889 * @since 2.0 | |
| 890 */ | |
| 891 public void textChanged(TextEvent event) { | |
| 892 if (event.getViewerRedrawState()) | |
| 893 paint(); | |
| 894 } | |
| 895 | |
| 896 /* | |
| 897 * @see IPositionUpdater#update(DocumentEvent) | |
| 898 * @since 2.0 | |
| 899 */ | |
| 900 public void update(DocumentEvent event) { | |
| 901 int offset= event.getOffset(); | |
| 902 int length= event.getLength(); | |
| 903 int delta= event.getText().length() - length; | |
| 904 | |
| 905 if (offset < fPosition.getOffset()) | |
| 906 fPosition.setOffset(fPosition.getOffset() + delta); | |
| 907 else if (offset < fPosition.getOffset() + fPosition.getLength()) | |
| 908 fPosition.setLength(fPosition.getLength() + delta); | |
| 909 } | |
| 910 } | |
| 911 | |
| 912 /** | |
| 913 * This viewer's find/replace target. | |
| 914 */ | |
| 915 class FindReplaceTarget : IFindReplaceTarget, IFindReplaceTargetExtension, IFindReplaceTargetExtension3 { | |
| 916 | |
| 917 /** The range for this target. */ | |
| 918 private FindReplaceRange fRange; | |
| 919 /** The highlight color of the range of this target. */ | |
| 920 private Color fScopeHighlightColor; | |
| 921 /** The document partitioner remembered in case of a "Replace All". */ | |
| 922 private Map fRememberedPartitioners; | |
| 923 /** | |
| 924 * The active rewrite session. | |
| 925 * @since 3.1 | |
| 926 */ | |
| 927 private DocumentRewriteSession fRewriteSession; | |
| 928 | |
| 929 /* | |
| 930 * @see IFindReplaceTarget#getSelectionText() | |
| 931 */ | |
| 932 public String getSelectionText() { | |
| 137 | 933 Point s= this.outer.getSelectedRange(); |
| 129 | 934 if (s.x > -1 && s.y > -1) { |
| 935 try { | |
| 137 | 936 IDocument document= this.outer.getDocument(); |
| 129 | 937 return document.get(s.x, s.y); |
| 938 } catch (BadLocationException x) { | |
| 939 } | |
| 940 } | |
| 941 return ""; //$NON-NLS-1$ | |
| 942 } | |
| 943 | |
| 944 /* | |
| 945 * @see IFindReplaceTarget#replaceSelection(String) | |
| 946 */ | |
| 947 public void replaceSelection(String text) { | |
| 948 replaceSelection(text, false); | |
| 949 } | |
| 950 | |
| 951 /* | |
| 952 * @see IFindReplaceTarget#replaceSelection(String) | |
| 953 */ | |
| 954 public void replaceSelection(String text, bool regExReplace) { | |
| 137 | 955 Point s= this.outer.getSelectedRange(); |
| 129 | 956 if (s.x > -1 && s.y > -1) { |
| 957 try { | |
| 137 | 958 IRegion matchRegion= this.outer.getFindReplaceDocumentAdapter().replace(text, regExReplace); |
| 129 | 959 int length= -1; |
| 960 if (matchRegion !is null) | |
| 961 length= matchRegion.getLength(); | |
| 962 | |
| 963 if (text !is null && length > 0) | |
| 137 | 964 this.outer.setSelectedRange(s.x, length); |
| 129 | 965 } catch (BadLocationException x) { |
| 966 } | |
| 967 } | |
| 968 } | |
| 969 | |
| 970 /* | |
| 971 * @see IFindReplaceTarget#isEditable() | |
| 972 */ | |
| 973 public bool isEditable() { | |
| 137 | 974 return this.outer.isEditable(); |
| 129 | 975 } |
| 976 | |
| 977 /* | |
| 978 * @see IFindReplaceTarget#getSelection() | |
| 979 */ | |
| 980 public Point getSelection() { | |
| 137 | 981 Point modelSelection= this.outer.getSelectedRange(); |
| 129 | 982 Point widgetSelection= modelSelection2WidgetSelection(modelSelection); |
| 983 return widgetSelection !is null ? widgetSelection : new Point(-1, -1); | |
| 984 } | |
| 985 | |
| 986 /* | |
| 987 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 988 */ | |
| 989 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord) { | |
| 990 try { | |
| 991 return findAndSelect(widgetOffset, findString, searchForward, caseSensitive, wholeWord, false); | |
| 992 } catch (PatternSyntaxException x) { | |
| 993 return -1; | |
| 994 } | |
| 995 } | |
| 996 | |
| 997 /* | |
| 998 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 999 */ | |
| 1000 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 1001 | |
| 1002 int modelOffset= widgetOffset is -1 ? -1 : widgetOffset2ModelOffset(widgetOffset); | |
| 1003 | |
| 1004 if (fRange !is null) { | |
| 1005 IRegion range= fRange.getRange(); | |
| 137 | 1006 modelOffset= this.outer.findAndSelectInRange(modelOffset, findString, searchForward, caseSensitive, wholeWord, range.getOffset(), range.getLength(), regExSearch); |
| 129 | 1007 } else { |
| 137 | 1008 modelOffset= this.outer.findAndSelect(modelOffset, findString, searchForward, caseSensitive, wholeWord, regExSearch); |
| 129 | 1009 } |
| 1010 | |
| 1011 widgetOffset= modelOffset is -1 ? -1 : modelOffset2WidgetOffset(modelOffset); | |
| 1012 return widgetOffset; | |
| 1013 } | |
| 1014 | |
| 1015 /* | |
| 1016 * @see IFindReplaceTarget#canPerformFind() | |
| 1017 */ | |
| 1018 public bool canPerformFind() { | |
| 137 | 1019 return this.outer.canPerformFind(); |
| 129 | 1020 } |
| 1021 | |
| 1022 /* | |
| 1023 * @see IFindReplaceTargetExtension#beginSession() | |
| 1024 * @since 2.0 | |
| 1025 */ | |
| 1026 public void beginSession() { | |
| 1027 fRange= null; | |
| 1028 } | |
| 1029 | |
| 1030 /* | |
| 1031 * @see IFindReplaceTargetExtension#endSession() | |
| 1032 * @since 2.0 | |
| 1033 */ | |
| 1034 public void endSession() { | |
| 1035 if (fRange !is null) { | |
| 1036 fRange.uninstall(); | |
| 1037 fRange= null; | |
| 1038 } | |
| 1039 } | |
| 1040 | |
| 1041 /* | |
| 1042 * @see IFindReplaceTargetExtension#getScope() | |
| 1043 * @since 2.0 | |
| 1044 */ | |
| 1045 public IRegion getScope() { | |
| 1046 return fRange is null ? null : fRange.getRange(); | |
| 1047 } | |
| 1048 | |
| 1049 /* | |
| 1050 * @see IFindReplaceTargetExtension#getLineSelection() | |
| 1051 * @since 2.0 | |
| 1052 */ | |
| 1053 public Point getLineSelection() { | |
| 137 | 1054 Point point= this.outer.getSelectedRange(); |
| 129 | 1055 |
| 1056 try { | |
| 137 | 1057 IDocument document= this.outer.getDocument(); |
| 129 | 1058 |
| 1059 // beginning of line | |
| 1060 int line= document.getLineOfOffset(point.x); | |
| 1061 int offset= document.getLineOffset(line); | |
| 1062 | |
| 1063 // end of line | |
| 1064 IRegion lastLineInfo= document.getLineInformationOfOffset(point.x + point.y); | |
| 1065 int lastLine= document.getLineOfOffset(point.x + point.y); | |
| 1066 int length; | |
| 1067 if (lastLineInfo.getOffset() is point.x + point.y && lastLine > 0) | |
| 1068 length= document.getLineOffset(lastLine - 1) + document.getLineLength(lastLine - 1) - offset; | |
| 1069 else | |
| 1070 length= lastLineInfo.getOffset() + lastLineInfo.getLength() - offset; | |
| 1071 | |
| 1072 return new Point(offset, length); | |
| 1073 | |
| 1074 } catch (BadLocationException e) { | |
| 1075 // should not happen | |
| 1076 return new Point(point.x, 0); | |
| 1077 } | |
| 1078 } | |
| 1079 | |
| 1080 /* | |
| 1081 * @see IFindReplaceTargetExtension#setSelection(int, int) | |
| 1082 * @since 2.0 | |
| 1083 */ | |
| 1084 public void setSelection(int modelOffset, int modelLength) { | |
| 137 | 1085 this.outer.setSelectedRange(modelOffset, modelLength); |
| 129 | 1086 } |
| 1087 | |
| 1088 /* | |
| 1089 * @see IFindReplaceTargetExtension#setScope(IRegion) | |
| 1090 * @since 2.0 | |
| 1091 */ | |
|
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1092 public void setScope(IRegion scope_) { |
| 129 | 1093 if (fRange !is null) |
| 1094 fRange.uninstall(); | |
| 1095 | |
|
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1096 if (scope_ is null) { |
| 129 | 1097 fRange= null; |
| 1098 return; | |
| 1099 } | |
| 1100 | |
|
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1101 fRange= new FindReplaceRange(scope_); |
| 129 | 1102 fRange.setHighlightColor(fScopeHighlightColor); |
| 1103 fRange.install(); | |
| 1104 } | |
| 1105 | |
| 1106 /* | |
| 1107 * @see IFindReplaceTargetExtension#setScopeHighlightColor(Color) | |
| 1108 * @since 2.0 | |
| 1109 */ | |
| 1110 public void setScopeHighlightColor(Color color) { | |
| 1111 if (fRange !is null) | |
| 1112 fRange.setHighlightColor(color); | |
| 1113 fScopeHighlightColor= color; | |
| 1114 } | |
| 1115 | |
| 1116 /* | |
| 1117 * @see IFindReplaceTargetExtension#setReplaceAllMode(bool) | |
| 1118 * @since 2.0 | |
| 1119 */ | |
| 1120 public void setReplaceAllMode(bool replaceAll) { | |
| 1121 | |
| 1122 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=18232 | |
| 1123 | |
| 137 | 1124 IDocument document= this.outer.getDocument(); |
| 129 | 1125 |
| 1126 if (replaceAll) { | |
| 1127 | |
| 138 | 1128 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1129 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1130 fRewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 1131 } else { | |
| 137 | 1132 this.outer.setRedraw(false); |
| 1133 this.outer.startSequentialRewriteMode(false); | |
| 129 | 1134 |
| 1135 if (fUndoManager !is null) | |
| 1136 fUndoManager.beginCompoundChange(); | |
| 1137 | |
| 1138 fRememberedPartitioners= TextUtilities.removeDocumentPartitioners(document); | |
| 1139 } | |
| 1140 | |
| 1141 } else { | |
| 1142 | |
| 138 | 1143 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1144 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1145 extension.stopRewriteSession(fRewriteSession); |
| 1146 } else { | |
| 137 | 1147 this.outer.setRedraw(true); |
| 1148 this.outer.stopSequentialRewriteMode(); | |
| 129 | 1149 |
| 1150 if (fUndoManager !is null) | |
| 1151 fUndoManager.endCompoundChange(); | |
| 1152 | |
| 1153 if (fRememberedPartitioners !is null) | |
| 1154 TextUtilities.addDocumentPartitioners(document, fRememberedPartitioners); | |
| 1155 } | |
| 1156 } | |
| 1157 } | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 /** | |
| 1162 * The viewer's rewrite target. | |
| 1163 * @since 2.0 | |
| 1164 */ | |
| 1165 class RewriteTarget : IRewriteTarget { | |
| 1166 | |
| 1167 /* | |
| 1168 * @see dwtx.jface.text.IRewriteTarget#beginCompoundChange() | |
| 1169 */ | |
| 1170 public void beginCompoundChange() { | |
| 1171 if (fUndoManager !is null) | |
| 1172 fUndoManager.beginCompoundChange(); | |
| 1173 } | |
| 1174 | |
| 1175 /* | |
| 1176 * @see dwtx.jface.text.IRewriteTarget#endCompoundChange() | |
| 1177 */ | |
| 1178 public void endCompoundChange() { | |
| 1179 if (fUndoManager !is null) | |
| 1180 fUndoManager.endCompoundChange(); | |
| 1181 } | |
| 1182 | |
| 1183 /* | |
| 1184 * @see dwtx.jface.text.IRewriteTarget#getDocument() | |
| 1185 */ | |
| 1186 public IDocument getDocument() { | |
| 137 | 1187 return this.outer.getDocument(); |
| 129 | 1188 } |
| 1189 | |
| 1190 /* | |
| 1191 * @see dwtx.jface.text.IRewriteTarget#setRedraw(bool) | |
| 1192 */ | |
| 1193 public void setRedraw(bool redraw) { | |
| 137 | 1194 this.outer.setRedraw(redraw); |
| 129 | 1195 } |
| 1196 } | |
| 1197 | |
| 1198 /** | |
| 1199 * Value object used as key in the text hover configuration table. It is | |
| 1200 * modifiable only inside this compilation unit to allow the reuse of created | |
| 1201 * objects for efficiency reasons | |
| 1202 * | |
| 1203 * @since 2.1 | |
| 1204 */ | |
| 1205 protected class TextHoverKey { | |
| 1206 | |
| 1207 /** The content type this key belongs to */ | |
| 1208 private String fContentType; | |
| 1209 /** The state mask */ | |
| 1210 private int fStateMask; | |
| 1211 | |
| 1212 /** | |
| 1213 * Creates a new text hover key for the given content type and state mask. | |
| 1214 * | |
| 1215 * @param contentType the content type | |
| 1216 * @param stateMask the state mask | |
| 1217 */ | |
|
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1218 protected this(String contentType, int stateMask) { |
| 129 | 1219 Assert.isNotNull(contentType); |
| 1220 fContentType= contentType; | |
| 1221 fStateMask= stateMask; | |
| 1222 } | |
| 1223 | |
| 1224 /* | |
| 1225 * @see java.lang.Object#equals(java.lang.Object) | |
| 1226 */ | |
| 1227 public bool equals(Object obj) { | |
| 1228 if (obj is null || obj.getClass() !is getClass()) | |
| 1229 return false; | |
| 134 | 1230 TextHoverKey textHoverKey= cast(TextHoverKey)obj; |
| 129 | 1231 return textHoverKey.fContentType.equals(fContentType) && textHoverKey.fStateMask is fStateMask; |
| 1232 } | |
| 1233 | |
| 1234 /* | |
| 1235 * @see java.lang.Object#hashCode() | |
| 1236 */ | |
| 1237 public int hashCode() { | |
| 1238 return fStateMask << 16 | fContentType.hashCode(); | |
| 1239 } | |
| 1240 | |
| 1241 /** | |
| 1242 * Sets the state mask of this text hover key. | |
| 1243 * | |
| 1244 * @param stateMask the state mask | |
| 1245 */ | |
| 1246 private void setStateMask(int stateMask) { | |
| 1247 fStateMask= stateMask; | |
| 1248 } | |
| 1249 } | |
|
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1250 |
| 129 | 1251 /** |
| 1252 * Captures and remembers the viewer state (selection and visual position). {@link TextViewer.ViewerState} | |
| 1253 * instances are normally used once and then discarded, similar to the following snippet: | |
| 1254 * <pre> | |
| 1255 * ViewerState state= new ViewerState(); // remember the state | |
| 1256 * doStuff(); // operation that may call setRedraw() and perform complex document modifications | |
| 1257 * state.restore(true); // restore the remembered state | |
| 1258 * </pre> | |
|
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1259 * |
| 129 | 1260 * @since 3.3 |
| 1261 */ | |
| 1262 private final class ViewerState { | |
| 1263 /** The position tracking the selection. */ | |
| 1264 private Position fSelection; | |
| 1265 /** <code>true</code> if {@link #fSelection} was originally backwards. */ | |
| 1266 private bool fReverseSelection; | |
| 1267 /** <code>true</code> if the selection has been updated while in redraw(off) mode. */ | |
| 1268 private bool fSelectionSet; | |
| 1269 /** The position tracking the visually stable line. */ | |
| 1270 private Position fStableLine; | |
| 1271 /** The pixel offset of the stable line measured from the client area. */ | |
| 1272 private int fStablePixel; | |
| 1273 | |
| 1274 /** The position updater for {@link #fSelection} and {@link #fStableLine}. */ | |
| 1275 private IPositionUpdater fUpdater; | |
| 1276 /** The document that the position updater and the positions are registered with. */ | |
| 1277 private IDocument fUpdaterDocument; | |
| 1278 /** The position category used by {@link #fUpdater}. */ | |
| 1279 private String fUpdaterCategory; | |
| 1280 | |
| 1281 /** | |
| 1282 * Creates a new viewer state instance and connects it to the current document. | |
| 1283 */ | |
|
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1284 public this() { |
| 129 | 1285 IDocument document= getDocument(); |
| 1286 if (document !is null) | |
| 1287 connect(document); | |
| 1288 } | |
| 1289 | |
| 1290 /** | |
| 1291 * Returns the normalized selection, i.e. the the selection length is always non-negative. | |
|
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1292 * |
| 129 | 1293 * @return the normalized selection |
| 1294 */ | |
| 1295 public Point getSelection() { | |
| 1296 if (fSelection is null) | |
| 1297 return new Point(-1, -1); | |
| 1298 return new Point(fSelection.getOffset(), fSelection.getLength()); | |
| 1299 } | |
| 1300 | |
| 1301 /** | |
| 1302 * Updates the selection. | |
|
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1303 * |
| 129 | 1304 * @param offset the new selection offset |
| 1305 * @param length the new selection length | |
| 1306 */ | |
| 1307 public void updateSelection(int offset, int length) { | |
| 1308 fSelectionSet= true; | |
| 1309 if (fSelection is null) | |
| 1310 fSelection= new Position(offset, length); | |
| 1311 else | |
| 1312 updatePosition(fSelection, offset, length); | |
| 1313 } | |
| 1314 | |
| 1315 /** | |
| 1316 * Restores the state and disconnects it from the document. The selection is no longer | |
| 1317 * tracked after this call. | |
|
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1318 * |
| 129 | 1319 * @param restoreViewport <code>true</code> to restore both selection and viewport, |
| 1320 * <code>false</code> to only restore the selection | |
| 1321 */ | |
| 1322 public void restore(bool restoreViewport) { | |
| 1323 if (isConnected()) | |
| 1324 disconnect(); | |
| 1325 if (fSelection !is null) { | |
| 1326 int offset= fSelection.getOffset(); | |
| 1327 int length= fSelection.getLength(); | |
| 1328 if (fReverseSelection) { | |
| 1329 offset-= length; | |
| 1330 length= -length; | |
| 1331 } | |
| 1332 setSelectedRange(offset, length); | |
| 1333 if (restoreViewport) | |
| 1334 updateViewport(); | |
| 1335 } | |
| 1336 } | |
| 1337 | |
| 1338 /** | |
| 1339 * Updates the viewport, trying to keep the | |
| 1340 * {@linkplain StyledText#getLinePixel(int) line pixel} of the caret line stable. If the | |
| 1341 * selection has been updated while in redraw(false) mode, the new selection is revealed. | |
| 1342 */ | |
| 1343 private void updateViewport() { | |
| 1344 if (fSelectionSet) { | |
| 1345 revealRange(fSelection.getOffset(), fSelection.getLength()); | |
| 1346 } else if (fStableLine !is null) { | |
| 1347 int stableLine; | |
| 1348 try { | |
| 1349 stableLine= fUpdaterDocument.getLineOfOffset(fStableLine.getOffset()); | |
| 1350 } catch (BadLocationException x) { | |
| 1351 // ignore and return silently | |
| 1352 return; | |
| 1353 } | |
| 1354 int stableWidgetLine= getClosestWidgetLineForModelLine(stableLine); | |
| 1355 if (stableWidgetLine is -1) | |
| 1356 return; | |
| 1357 int linePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1358 int delta= fStablePixel - linePixel; | |
| 1359 int topPixel= getTextWidget().getTopPixel(); | |
| 1360 getTextWidget().setTopPixel(topPixel - delta); | |
| 1361 } | |
| 1362 } | |
| 1363 | |
| 1364 /** | |
| 1365 * Remembers the viewer state. | |
|
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1366 * |
| 129 | 1367 * @param document the document to remember the state of |
| 1368 */ | |
| 1369 private void connect(IDocument document) { | |
| 1370 Assert.isLegal(document !is null); | |
| 1371 Assert.isLegal(!isConnected()); | |
| 1372 fUpdaterDocument= document; | |
| 1373 try { | |
| 1374 fUpdaterCategory= SELECTION_POSITION_CATEGORY + hashCode(); | |
| 1375 fUpdater= new NonDeletingPositionUpdater(fUpdaterCategory); | |
| 1376 fUpdaterDocument.addPositionCategory(fUpdaterCategory); | |
| 1377 fUpdaterDocument.addPositionUpdater(fUpdater); | |
| 1378 | |
| 1379 Point selectionRange= getSelectedRange(); | |
| 1380 fReverseSelection= selectionRange.y < 0; | |
| 1381 int offset, length; | |
| 1382 if (fReverseSelection) { | |
| 1383 offset= selectionRange.x + selectionRange.y; | |
| 1384 length= -selectionRange.y; | |
| 1385 } else { | |
| 1386 offset= selectionRange.x; | |
| 1387 length= selectionRange.y; | |
| 1388 } | |
| 1389 | |
| 1390 fSelection= new Position(offset, length); | |
| 1391 fSelectionSet= false; | |
| 1392 fUpdaterDocument.addPosition(fUpdaterCategory, fSelection); | |
| 1393 | |
| 1394 int stableLine= getStableLine(); | |
| 1395 int stableWidgetLine= modelLine2WidgetLine(stableLine); | |
| 1396 fStablePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1397 IRegion stableLineInfo= fUpdaterDocument.getLineInformation(stableLine); | |
| 1398 fStableLine= new Position(stableLineInfo.getOffset(), stableLineInfo.getLength()); | |
| 1399 fUpdaterDocument.addPosition(fUpdaterCategory, fStableLine); | |
| 1400 } catch (BadPositionCategoryException e) { | |
| 1401 // cannot happen | |
| 1402 Assert.isTrue(false); | |
| 1403 } catch (BadLocationException e) { | |
| 1404 // should not happen except on concurrent modification | |
| 1405 // ignore and disconnect | |
| 1406 disconnect(); | |
| 1407 } | |
| 1408 } | |
| 1409 | |
| 1410 /** | |
| 1411 * Updates a position with the given information and clears its deletion state. | |
|
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1412 * |
| 129 | 1413 * @param position the position to update |
| 1414 * @param offset the new selection offset | |
| 1415 * @param length the new selection length | |
| 1416 */ | |
| 1417 private void updatePosition(Position position, int offset, int length) { | |
| 1418 position.setOffset(offset); | |
| 1419 position.setLength(length); | |
| 1420 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=32795 | |
| 1421 position.isDeleted= false; | |
| 1422 } | |
| 1423 | |
| 1424 /** | |
| 1425 * Returns the document line to keep visually stable. If the caret line is (partially) | |
| 1426 * visible, it is returned, otherwise the topmost (partially) visible line is returned. | |
|
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1427 * |
| 129 | 1428 * @return the visually stable line of this viewer state |
| 1429 */ | |
| 1430 private int getStableLine() { | |
| 1431 int stableLine; // the model line that we try to keep stable | |
| 1432 int caretLine= getTextWidget().getLineAtOffset(getTextWidget().getCaretOffset()); | |
| 1433 if (caretLine < JFaceTextUtil.getPartialTopIndex(getTextWidget()) || caretLine > JFaceTextUtil.getPartialBottomIndex(getTextWidget())) { | |
|
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1434 stableLine= JFaceTextUtil.getPartialTopIndex(this.outer); |
| 129 | 1435 } else { |
| 1436 stableLine= widgetLine2ModelLine(caretLine); | |
| 1437 } | |
| 1438 return stableLine; | |
| 1439 } | |
| 1440 | |
| 1441 /** | |
| 1442 * Returns <code>true</code> if the viewer state is being tracked, <code>false</code> | |
| 1443 * otherwise. | |
|
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1444 * |
| 129 | 1445 * @return the tracking state |
| 1446 */ | |
| 1447 private bool isConnected() { | |
| 1448 return fUpdater !is null; | |
| 1449 } | |
| 1450 | |
| 1451 /** | |
| 1452 * Disconnects from the document. | |
| 1453 */ | |
| 1454 private void disconnect() { | |
| 1455 Assert.isTrue(isConnected()); | |
| 1456 try { | |
| 1457 fUpdaterDocument.removePosition(fUpdaterCategory, fSelection); | |
| 1458 fUpdaterDocument.removePosition(fUpdaterCategory, fStableLine); | |
| 1459 fUpdaterDocument.removePositionUpdater(fUpdater); | |
| 1460 fUpdater= null; | |
| 1461 fUpdaterDocument.removePositionCategory(fUpdaterCategory); | |
| 1462 fUpdaterCategory= null; | |
| 1463 } catch (BadPositionCategoryException x) { | |
| 1464 // cannot happen | |
| 1465 Assert.isTrue(false); | |
| 1466 } | |
| 1467 } | |
| 1468 } | |
| 1469 | |
| 1470 /** | |
| 1471 * Internal cursor listener i.e. aggregation of mouse and key listener. | |
|
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1472 * |
| 129 | 1473 * @since 3.0 |
| 1474 */ | |
| 1475 private class CursorListener : KeyListener, MouseListener { | |
| 1476 | |
| 1477 /** | |
| 1478 * Installs this cursor listener. | |
| 1479 */ | |
| 1480 private void install() { | |
| 1481 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1482 fTextWidget.addKeyListener(this); | |
| 1483 fTextWidget.addMouseListener(this); | |
| 1484 } | |
| 1485 } | |
| 1486 | |
| 1487 /** | |
| 1488 * Uninstalls this cursor listener. | |
| 1489 */ | |
| 1490 private void uninstall() { | |
| 1491 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1492 fTextWidget.removeKeyListener(this); | |
| 1493 fTextWidget.removeMouseListener(this); | |
| 1494 } | |
| 1495 } | |
| 1496 | |
| 1497 /* | |
| 1498 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1499 */ | |
| 1500 public void keyPressed(KeyEvent event) { | |
| 1501 } | |
| 1502 | |
| 1503 /* | |
| 1504 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1505 */ | |
| 1506 public void keyReleased(KeyEvent e) { | |
| 1507 if (fTextWidget.getSelectionCount() is 0) { | |
| 1508 fLastSentSelectionChange= null; | |
| 1509 queuePostSelectionChanged(e.character is DWT.DEL); | |
| 1510 } | |
| 1511 } | |
| 1512 | |
| 1513 /* | |
| 1514 * @see MouseListener#mouseDoubleClick(dwt.events.MouseEvent) | |
| 1515 */ | |
| 1516 public void mouseDoubleClick(MouseEvent e) { | |
| 1517 } | |
| 1518 | |
| 1519 /* | |
| 1520 * @see MouseListener#mouseDown(dwt.events.MouseEvent) | |
| 1521 */ | |
| 1522 public void mouseDown(MouseEvent e) { | |
| 1523 } | |
| 1524 | |
| 1525 /* | |
| 1526 * @see MouseListener#mouseUp(dwt.events.MouseEvent) | |
| 1527 */ | |
| 1528 public void mouseUp(MouseEvent event) { | |
| 1529 if (fTextWidget.getSelectionCount() is 0) | |
| 1530 queuePostSelectionChanged(false); | |
| 1531 } | |
| 1532 } | |
| 1533 | |
| 1534 /** | |
| 1535 * Internal listener to document rewrite session state changes. | |
| 1536 * @since 3.1 | |
| 1537 */ | |
| 1538 private class DocumentRewriteSessionListener : IDocumentRewriteSessionListener { | |
| 1539 | |
| 1540 /* | |
| 1541 * @see dwtx.jface.text.IDocumentRewriteSessionListener#documentRewriteSessionChanged(dwtx.jface.text.DocumentRewriteSessionEvent) | |
| 1542 */ | |
| 1543 public void documentRewriteSessionChanged(DocumentRewriteSessionEvent event) { | |
| 137 | 1544 IRewriteTarget target= this.outer.getRewriteTarget(); |
| 129 | 1545 // FIXME always use setRedraw to avoid flickering due to scrolling |
| 1546 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=158746 | |
| 1547 bool toggleRedraw= true || event.getSession().getSessionType() !is DocumentRewriteSessionType.UNRESTRICTED_SMALL; | |
| 1548 final bool viewportStabilize= !toggleRedraw; | |
| 1549 if (DocumentRewriteSessionEvent.SESSION_START is event.getChangeType()) { | |
| 1550 if (toggleRedraw) | |
| 1551 target.setRedraw(false); | |
| 1552 target.beginCompoundChange(); | |
| 1553 if (viewportStabilize && fViewerState is null) | |
| 1554 fViewerState= new ViewerState(); | |
| 1555 } else if (DocumentRewriteSessionEvent.SESSION_STOP is event.getChangeType()) { | |
| 1556 if (viewportStabilize && fViewerState !is null) { | |
| 1557 fViewerState.restore(true); | |
| 1558 fViewerState= null; | |
| 1559 } | |
| 1560 target.endCompoundChange(); | |
| 1561 if (toggleRedraw) | |
| 1562 target.setRedraw(true); | |
| 1563 } | |
| 1564 } | |
| 1565 } | |
|
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1566 |
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1567 |
| 129 | 1568 /** |
| 1569 * Identifies the scrollbars as originators of a view port change. | |
| 1570 */ | |
| 1571 protected static final int SCROLLER= 1; | |
| 1572 /** | |
| 1573 * Identifies mouse moves as originators of a view port change. | |
| 1574 */ | |
| 1575 protected static final int MOUSE= 2; | |
| 1576 /** | |
| 1577 * Identifies mouse button up as originator of a view port change. | |
| 1578 */ | |
| 1579 protected static final int MOUSE_END= 3; | |
| 1580 /** | |
| 1581 * Identifies key strokes as originators of a view port change. | |
| 1582 */ | |
| 1583 protected static final int KEY= 4; | |
| 1584 /** | |
| 1585 * Identifies window resizing as originator of a view port change. | |
| 1586 */ | |
| 1587 protected static final int RESIZE= 5; | |
| 1588 /** | |
| 1589 * Identifies internal reasons as originators of a view port change. | |
| 1590 */ | |
| 1591 protected static final int INTERNAL= 6; | |
| 1592 | |
| 1593 /** Internal name of the position category used selection preservation during shift. */ | |
| 1594 protected static final String SHIFTING= "__TextViewer_shifting"; //$NON-NLS-1$ | |
| 1595 | |
| 1596 /** | |
| 1597 * Base position category name used by the selection updater | |
| 1598 * @since 3.1 | |
| 1599 */ | |
| 147 | 1600 private static const String SELECTION_POSITION_CATEGORY= "_textviewer_selection_category"; //$NON-NLS-1$ |
| 129 | 1601 /** The viewer's text widget */ |
| 1602 private StyledText fTextWidget; | |
| 1603 /** The viewer's input document */ | |
| 1604 private IDocument fDocument; | |
| 1605 /** The viewer's visible document */ | |
| 1606 private IDocument fVisibleDocument; | |
| 1607 /** The viewer's document adapter */ | |
| 1608 private IDocumentAdapter fDocumentAdapter; | |
| 1609 /** The slave document manager */ | |
| 1610 private ISlaveDocumentManager fSlaveDocumentManager; | |
| 1611 /** The text viewer's double click strategies connector */ | |
| 1612 private TextDoubleClickStrategyConnector fDoubleClickStrategyConnector; | |
| 1613 /** The text viewer's view port guard */ | |
| 1614 private ViewportGuard fViewportGuard; | |
| 1615 /** Caches the graphical coordinate of the first visible line */ | |
| 1616 private int fTopInset= 0; | |
| 1617 /** The most recent document modification as widget command */ | |
| 1618 private WidgetCommand fWidgetCommand= new WidgetCommand(); | |
| 1619 /** The DWT control's scrollbars */ | |
| 1620 private ScrollBar fScroller; | |
| 1621 /** Listener on the visible document */ | |
| 1622 private VisibleDocumentListener fVisibleDocumentListener= new VisibleDocumentListener(); | |
| 1623 /** Verify listener */ | |
| 1624 private TextVerifyListener fVerifyListener= new TextVerifyListener(); | |
| 1625 /** The most recent widget modification as document command */ | |
| 1626 private DocumentCommand fDocumentCommand= new DocumentCommand(); | |
| 1627 /** The viewer's find/replace target */ | |
| 1628 private IFindReplaceTarget fFindReplaceTarget; | |
| 1629 /** | |
| 1630 * The text viewer's hovering controller | |
| 1631 * @since 2.0 | |
| 1632 */ | |
| 1633 private TextViewerHoverManager fTextHoverManager; | |
| 1634 /** | |
| 1635 * The viewer widget token keeper | |
| 1636 * @since 2.0 | |
| 1637 */ | |
| 1638 private IWidgetTokenKeeper fWidgetTokenKeeper; | |
| 1639 /** | |
| 1640 * The viewer's manager of verify key listeners | |
| 1641 * @since 2.0 | |
| 1642 */ | |
| 1643 private VerifyKeyListenersManager fVerifyKeyListenersManager= new VerifyKeyListenersManager(); | |
| 1644 /** | |
| 1645 * The mark position. | |
| 1646 * @since 2.0 | |
| 1647 */ | |
| 1648 protected Position fMarkPosition; | |
| 1649 /** | |
| 1650 * The mark position category. | |
| 1651 * @since 2.0 | |
| 1652 */ | |
| 146 | 1653 private const String MARK_POSITION_CATEGORY="__mark_category_" + hashCode(); //$NON-NLS-1$ |
| 129 | 1654 /** |
| 1655 * The mark position updater | |
| 1656 * @since 2.0 | |
| 1657 */ | |
| 146 | 1658 private const IPositionUpdater fMarkPositionUpdater= new DefaultPositionUpdater(MARK_POSITION_CATEGORY); |
| 129 | 1659 /** |
| 1660 * The flag indicating the redraw behavior | |
| 1661 * @since 2.0 | |
| 1662 */ | |
| 1663 private int fRedrawCounter= 0; | |
| 1664 /** | |
| 1665 * The viewer's rewrite target | |
| 1666 * @since 2.0 | |
| 1667 */ | |
| 1668 private IRewriteTarget fRewriteTarget; | |
| 1669 /** | |
| 1670 * The viewer's cursor listener. | |
| 1671 * @since 3.0 | |
| 1672 */ | |
| 1673 private CursorListener fCursorListener; | |
| 1674 /** | |
| 1675 * Last selection range sent to selection change listeners. | |
| 1676 * @since 3.0 | |
| 1677 */ | |
| 1678 private IRegion fLastSentSelectionChange; | |
| 1679 /** | |
| 1680 * The registered post selection changed listeners. | |
| 1681 * @since 3.0 | |
| 1682 */ | |
| 1683 private List fPostSelectionChangedListeners; | |
| 1684 /** | |
| 1685 * Queued post selection changed events count. | |
| 1686 * @since 3.0 | |
| 1687 */ | |
| 146 | 1688 private const int[] fNumberOfPostSelectionChangedEvents= new int[1]; |
| 129 | 1689 /** |
| 1690 * Last selection range sent to post selection change listeners. | |
| 1691 * @since 3.0 | |
| 1692 */ | |
| 1693 private IRegion fLastSentPostSelectionChange; | |
| 1694 /** | |
| 1695 * The set of registered editor helpers. | |
| 1696 * @since 3.1 | |
| 1697 */ | |
| 1698 private Set fEditorHelpers= new HashSet(); | |
| 1699 /** | |
| 1700 * The internal rewrite session listener. | |
| 1701 * @since 3.1 | |
| 1702 */ | |
| 1703 private DocumentRewriteSessionListener fDocumentRewriteSessionListener= new DocumentRewriteSessionListener(); | |
| 1704 | |
| 1705 /** Should the auto indent strategies ignore the next edit operation */ | |
| 1706 protected bool fIgnoreAutoIndent= false; | |
| 1707 /** The strings a line is prefixed with on SHIFT_RIGHT and removed from each line on SHIFT_LEFT */ | |
| 1708 protected Map fIndentChars; | |
| 1709 /** The string a line is prefixed with on PREFIX and removed from each line on STRIP_PREFIX */ | |
| 1710 protected Map fDefaultPrefixChars; | |
| 1711 /** The text viewer's text double click strategies */ | |
| 1712 protected Map fDoubleClickStrategies; | |
| 1713 /** The text viewer's undo manager */ | |
| 1714 protected IUndoManager fUndoManager; | |
| 1715 /** The text viewer's auto indent strategies */ | |
| 1716 protected Map fAutoIndentStrategies; | |
| 1717 /** The text viewer's text hovers */ | |
| 1718 protected Map fTextHovers; | |
| 1719 /** All registered view port listeners> */ | |
| 1720 protected List fViewportListeners; | |
| 1721 /** The last visible vertical position of the top line */ | |
| 1722 protected int fLastTopPixel; | |
| 1723 /** All registered text listeners */ | |
| 1724 protected List fTextListeners; | |
| 1725 /** All registered text input listeners */ | |
| 1726 protected List fTextInputListeners; | |
| 1727 /** The text viewer's event consumer */ | |
| 1728 protected IEventConsumer fEventConsumer; | |
| 1729 /** Indicates whether the viewer's text presentation should be replaced are modified. */ | |
| 1730 protected bool fReplaceTextPresentation= false; | |
| 1731 /** | |
| 1732 * The creator of the text hover control | |
| 1733 * @since 2.0 | |
| 1734 */ | |
| 1735 protected IInformationControlCreator fHoverControlCreator; | |
| 1736 /** | |
| 1737 * The mapping between model and visible document. | |
| 1738 * @since 2.1 | |
| 1739 */ | |
| 1740 protected IDocumentInformationMapping fInformationMapping; | |
| 1741 /** | |
| 1742 * The viewer's paint manager. | |
| 1743 * @since 2.1 | |
| 1744 */ | |
| 1745 protected PaintManager fPaintManager; | |
| 1746 /** | |
| 1747 * The viewers partitioning. I.e. the partitioning name the viewer uses to access partitioning information of its input document. | |
| 1748 * @since 3.0 | |
| 1749 */ | |
| 1750 protected String fPartitioning; | |
| 1751 /** | |
| 1752 * All registered text presentation listeners. | |
| 1753 * since 3.0 | |
| 1754 */ | |
| 1755 protected List fTextPresentationListeners; | |
| 1756 /** | |
| 1757 * The find/replace document adapter. | |
| 1758 * @since 3.0 | |
| 1759 */ | |
| 1760 protected FindReplaceDocumentAdapter fFindReplaceDocumentAdapter; | |
| 1761 | |
| 1762 /** | |
| 1763 * The text viewer's hyperlink detectors. | |
| 1764 * @since 3.1 | |
| 1765 */ | |
| 1766 protected IHyperlinkDetector[] fHyperlinkDetectors; | |
| 1767 /** | |
| 1768 * The text viewer's hyperlink presenter. | |
| 1769 * @since 3.1 | |
| 1770 */ | |
| 1771 protected IHyperlinkPresenter fHyperlinkPresenter; | |
| 1772 /** | |
| 1773 * The text viewer's hyperlink manager. | |
| 1774 * @since 3.1 | |
| 1775 */ | |
| 1776 protected HyperlinkManager fHyperlinkManager; | |
| 1777 /** | |
| 1778 * The DWT key modifier mask which in combination | |
| 1779 * with the left mouse button triggers the hyperlink mode. | |
| 1780 * @since 3.1 | |
| 1781 */ | |
| 1782 protected int fHyperlinkStateMask; | |
| 1783 /** | |
| 1784 * The viewer state when in non-redraw state, <code>null</code> otherwise. | |
| 1785 * @since 3.3 | |
| 1786 */ | |
| 1787 private ViewerState fViewerState; | |
| 1788 /** | |
| 1789 * The editor's tab converter. | |
| 1790 * @since 3.3 | |
| 1791 */ | |
| 1792 private IAutoEditStrategy fTabsToSpacesConverter; | |
| 1793 | |
| 1794 | |
| 1795 //---- Construction and disposal ------------------ | |
| 1796 | |
| 1797 | |
| 1798 /** | |
| 1799 * Internal use only | |
| 1800 */ | |
|
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1801 protected this() { |
| 129 | 1802 } |
| 1803 | |
| 1804 /** | |
| 1805 * Create a new text viewer with the given DWT style bits. | |
| 1806 * The viewer is ready to use but does not have any plug-in installed. | |
| 1807 * | |
| 1808 * @param parent the parent of the viewer's control | |
| 1809 * @param styles the DWT style bits for the viewer's control, | |
| 1810 * <em>if <code>DWT.WRAP</code> is set then a custom document adapter needs to be provided, see {@link #createDocumentAdapter()} | |
| 1811 */ | |
|
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1812 public this(Composite parent, int styles) { |
| 129 | 1813 createControl(parent, styles); |
| 1814 } | |
| 1815 | |
| 1816 /** | |
| 1817 * Factory method to create the text widget to be used as the viewer's text widget. | |
| 1818 * | |
| 1819 * @param parent the parent of the styled text | |
| 1820 * @param styles the styles for the styled text | |
| 1821 * @return the text widget to be used | |
| 1822 */ | |
| 1823 protected StyledText createTextWidget(Composite parent, int styles) { | |
| 1824 return new StyledText(parent, styles); | |
| 1825 } | |
| 1826 | |
| 1827 /** | |
| 1828 * Factory method to create the document adapter to be used by this viewer. | |
| 1829 * | |
| 1830 * @return the document adapter to be used | |
| 1831 */ | |
| 1832 protected IDocumentAdapter createDocumentAdapter() { | |
| 1833 return new DefaultDocumentAdapter(); | |
| 1834 } | |
| 1835 | |
| 1836 /** | |
| 1837 * Creates the viewer's DWT control. The viewer's text widget either is | |
| 1838 * the control or is a child of the control. | |
| 1839 * | |
| 1840 * @param parent the parent of the viewer's control | |
| 1841 * @param styles the DWT style bits for the viewer's control | |
| 1842 */ | |
| 1843 protected void createControl(Composite parent, int styles) { | |
| 1844 | |
| 1845 fTextWidget= createTextWidget(parent, styles); | |
|
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1846 |
| 129 | 1847 // Support scroll page upon MOD1+MouseWheel |
| 135 | 1848 fTextWidget.addListener(DWT.MouseWheel, new class() Listener { |
| 129 | 1849 |
| 1850 public void handleEvent(Event event) { | |
| 1851 if (((event.stateMask & DWT.MOD1) is 0)) | |
| 1852 return; | |
| 1853 | |
| 1854 int topIndex= fTextWidget.getTopIndex(); | |
| 1855 int bottomIndex= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 1856 | |
| 1857 if (event.count > 0) | |
| 1858 fTextWidget.setTopIndex(2 * topIndex - bottomIndex); | |
| 1859 else | |
| 1860 fTextWidget.setTopIndex(bottomIndex); | |
| 1861 | |
| 1862 updateViewportListeners(INTERNAL); | |
| 1863 } | |
| 1864 }); | |
|
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1865 |
| 129 | 1866 fTextWidget.addDisposeListener( |
| 135 | 1867 new class() DisposeListener { |
| 129 | 1868 public void widgetDisposed(DisposeEvent e) { |
| 1869 handleDispose(); | |
| 1870 } | |
| 1871 } | |
| 1872 ); | |
| 1873 | |
| 1874 fTextWidget.setFont(parent.getFont()); | |
| 1875 fTextWidget.setDoubleClickEnabled(true); | |
| 1876 | |
| 1877 /* | |
| 1878 * Disable DWT Shift+TAB traversal in this viewer | |
| 1879 * 1GIYQ9K: ITPUI:WINNT - StyledText swallows Shift+TAB | |
| 1880 */ | |
| 135 | 1881 fTextWidget.addTraverseListener(new class() TraverseListener { |
| 129 | 1882 public void keyTraversed(TraverseEvent e) { |
| 1883 if ((DWT.SHIFT is e.stateMask) && ('\t' is e.character)) | |
| 1884 e.doit= false; | |
| 1885 } | |
| 1886 }); | |
| 1887 | |
| 1888 // where does the first line start | |
| 1889 fTopInset= -fTextWidget.computeTrim(0, 0, 0, 0).y; | |
| 1890 | |
| 1891 fVerifyListener.forward(true); | |
| 1892 fTextWidget.addVerifyListener(fVerifyListener); | |
| 1893 | |
| 135 | 1894 fTextWidget.addSelectionListener(new class() SelectionListener { |
| 129 | 1895 public void widgetDefaultSelected(SelectionEvent event) { |
| 1896 selectionChanged(event.x, event.y - event.x); | |
| 1897 } | |
| 1898 public void widgetSelected(SelectionEvent event) { | |
| 1899 selectionChanged(event.x, event.y - event.x); | |
| 1900 } | |
| 1901 }); | |
| 1902 | |
| 1903 fCursorListener= new CursorListener(); | |
| 1904 fCursorListener.install(); | |
| 1905 | |
| 1906 initializeViewportUpdate(); | |
| 1907 } | |
| 1908 | |
| 1909 /* | |
| 1910 * @see Viewer#getControl() | |
| 1911 */ | |
| 1912 public Control getControl() { | |
| 1913 return fTextWidget; | |
| 1914 } | |
| 1915 | |
| 1916 /* | |
| 1917 * @see ITextViewer#activatePlugins() | |
| 1918 */ | |
| 1919 public void activatePlugins() { | |
| 1920 | |
| 1921 if (fDoubleClickStrategies !is null && !fDoubleClickStrategies.isEmpty() && fDoubleClickStrategyConnector is null) { | |
| 1922 fDoubleClickStrategyConnector= new TextDoubleClickStrategyConnector(); | |
| 1923 fTextWidget.addWordMovementListener(fDoubleClickStrategyConnector); | |
| 1924 fTextWidget.addMouseListener(fDoubleClickStrategyConnector); | |
| 1925 } | |
| 1926 | |
| 1927 ensureHoverControlManagerInstalled(); | |
| 1928 ensureHyperlinkManagerInstalled(); | |
| 1929 | |
| 1930 if (fUndoManager !is null) { | |
| 1931 fUndoManager.connect(this); | |
| 1932 fUndoManager.reset(); | |
| 1933 } | |
| 1934 } | |
| 1935 | |
| 1936 /** | |
| 1937 * After this method has been executed the caller knows that any installed text hover has been installed. | |
| 1938 */ | |
| 1939 private void ensureHoverControlManagerInstalled() { | |
| 1940 if (fTextHovers !is null && !fTextHovers.isEmpty() && fHoverControlCreator !is null && fTextHoverManager is null) { | |
| 1941 fTextHoverManager= new TextViewerHoverManager(this, fHoverControlCreator); | |
| 1942 fTextHoverManager.install(this.getTextWidget()); | |
| 1943 fTextHoverManager.setSizeConstraints(TEXT_HOVER_WIDTH_CHARS, TEXT_HOVER_HEIGHT_CHARS, false, true); | |
| 1944 fTextHoverManager.setInformationControlReplacer(new StickyHoverManager(this)); | |
| 1945 } | |
| 1946 } | |
| 1947 | |
| 1948 /* | |
| 1949 * @see ITextViewer#resetPlugins() | |
| 1950 */ | |
| 1951 public void resetPlugins() { | |
| 1952 if (fUndoManager !is null) | |
| 1953 fUndoManager.reset(); | |
| 1954 } | |
| 1955 | |
| 1956 /** | |
| 1957 * Frees all resources allocated by this viewer. Internally called when the viewer's | |
| 1958 * control has been disposed. | |
| 1959 */ | |
| 1960 protected void handleDispose() { | |
|
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1961 |
| 129 | 1962 setDocument(null); |
| 1963 | |
| 1964 if (fPaintManager !is null) { | |
| 1965 fPaintManager.dispose(); | |
| 1966 fPaintManager= null; | |
| 1967 } | |
| 1968 | |
| 1969 removeViewPortUpdate(); | |
| 1970 fViewportGuard= null; | |
| 1971 | |
| 1972 if (fViewportListeners !is null) { | |
| 1973 fViewportListeners.clear(); | |
| 1974 fViewportListeners= null; | |
| 1975 } | |
| 1976 | |
| 1977 if (fTextListeners !is null) { | |
| 1978 fTextListeners.clear(); | |
| 1979 fTextListeners= null; | |
| 1980 } | |
| 1981 | |
| 1982 if (fTextInputListeners !is null) { | |
| 1983 fTextInputListeners.clear(); | |
| 1984 fTextInputListeners= null; | |
| 1985 } | |
| 1986 | |
| 1987 if (fPostSelectionChangedListeners !is null) { | |
| 1988 fPostSelectionChangedListeners.clear(); | |
| 1989 fPostSelectionChangedListeners= null; | |
| 1990 } | |
| 1991 | |
| 1992 if (fAutoIndentStrategies !is null) { | |
| 1993 fAutoIndentStrategies.clear(); | |
| 1994 fAutoIndentStrategies= null; | |
| 1995 } | |
| 1996 | |
| 1997 if (fUndoManager !is null) { | |
| 1998 fUndoManager.disconnect(); | |
| 1999 fUndoManager= null; | |
| 2000 } | |
| 2001 | |
| 2002 if (fDoubleClickStrategies !is null) { | |
| 2003 fDoubleClickStrategies.clear(); | |
| 2004 fDoubleClickStrategies= null; | |
| 2005 } | |
| 2006 | |
| 2007 if (fTextHovers !is null) { | |
| 2008 fTextHovers.clear(); | |
| 2009 fTextHovers= null; | |
| 2010 } | |
| 2011 | |
| 2012 fDoubleClickStrategyConnector= null; | |
| 2013 | |
| 2014 if (fTextHoverManager !is null) { | |
| 2015 fTextHoverManager.dispose(); | |
| 2016 fTextHoverManager= null; | |
| 2017 } | |
| 2018 | |
| 2019 if (fVisibleDocumentListener !is null) { | |
| 2020 if (fVisibleDocument !is null) | |
| 2021 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 2022 fVisibleDocumentListener= null; | |
| 2023 } | |
| 2024 | |
| 2025 if (fDocumentAdapter !is null) { | |
| 2026 fDocumentAdapter.setDocument(null); | |
| 2027 fDocumentAdapter= null; | |
| 2028 } | |
| 2029 | |
| 2030 if (fSlaveDocumentManager !is null) { | |
| 2031 if (fVisibleDocument !is null) | |
| 2032 fSlaveDocumentManager.freeSlaveDocument(fVisibleDocument); | |
| 2033 fSlaveDocumentManager= null; | |
| 2034 } | |
| 2035 | |
| 2036 if (fCursorListener !is null) { | |
| 2037 fCursorListener.uninstall(); | |
| 2038 fCursorListener= null; | |
| 2039 } | |
| 2040 | |
| 2041 if (fHyperlinkManager !is null) { | |
| 2042 fHyperlinkManager.uninstall(); | |
| 2043 fHyperlinkManager= null; | |
| 2044 } | |
| 2045 | |
| 2046 fHyperlinkDetectors= null; | |
| 2047 fVisibleDocument= null; | |
| 2048 fDocument= null; | |
| 2049 fScroller= null; | |
|
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2050 |
| 129 | 2051 fTextWidget= null; |
| 2052 } | |
| 2053 | |
| 2054 | |
| 2055 //---- simple getters and setters | |
| 2056 | |
| 2057 /* | |
| 2058 * @see dwtx.jface.text.ITextViewer#getTextWidget() | |
| 2059 */ | |
| 2060 public StyledText getTextWidget() { | |
| 2061 return fTextWidget; | |
| 2062 } | |
| 2063 | |
| 2064 /** | |
| 2065 * The delay in milliseconds before an empty selection | |
| 2066 * changed event is sent by the cursor listener. | |
| 2067 * <p> | |
| 2068 * Note: The return value is used to initialize the cursor | |
| 2069 * listener. To return a non-constant value has no effect.</p> | |
| 2070 * <p> | |
| 2071 * The same value (<code>500</code>) is used in <code>OpenStrategy.TIME</code>.</p> | |
| 2072 * | |
| 2073 * @return delay in milliseconds | |
| 2074 * @see dwtx.jface.util.OpenStrategy | |
| 2075 * @since 3.0 | |
| 2076 */ | |
| 2077 protected int getEmptySelectionChangedEventDelay() { | |
| 2078 return 500; | |
| 2079 } | |
| 2080 | |
| 2081 /** | |
| 2082 * {@inheritDoc} | |
| 2083 * @deprecated since 3.1, use | |
| 2084 * {@link ITextViewerExtension2#prependAutoEditStrategy(IAutoEditStrategy, String)} and | |
| 2085 * {@link ITextViewerExtension2#removeAutoEditStrategy(IAutoEditStrategy, String)} instead | |
| 2086 */ | |
| 2087 public void setAutoIndentStrategy(IAutoIndentStrategy strategy, String contentType) { | |
|
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2088 setAutoEditStrategies([ strategy ], contentType); |
| 129 | 2089 } |
| 2090 | |
| 2091 /** | |
| 2092 * Sets the given edit strategy as the only strategy for the given content type. | |
| 2093 * | |
| 2094 * @param strategies the auto edit strategies | |
| 2095 * @param contentType the content type | |
| 2096 * @since 3.1 | |
| 2097 */ | |
| 2098 protected final void setAutoEditStrategies(IAutoEditStrategy[] strategies, String contentType) { | |
| 2099 if (fAutoIndentStrategies is null) | |
| 2100 fAutoIndentStrategies= new HashMap(); | |
| 2101 | |
| 134 | 2102 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2103 |
| 2104 if (strategies is null) { | |
| 2105 if (autoEditStrategies is null) | |
| 2106 return; | |
| 2107 | |
| 2108 fAutoIndentStrategies.put(contentType, null); | |
| 2109 | |
| 2110 } else { | |
| 2111 if (autoEditStrategies is null) { | |
| 2112 autoEditStrategies= new ArrayList(); | |
| 2113 fAutoIndentStrategies.put(contentType, autoEditStrategies); | |
| 2114 } | |
| 2115 | |
| 2116 autoEditStrategies.clear(); | |
| 2117 autoEditStrategies.addAll(Arrays.asList(strategies)); | |
| 2118 } | |
| 2119 } | |
| 2120 | |
| 2121 /* | |
| 2122 * @see dwtx.jface.text.ITextViewerExtension2#prependAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2123 * @since 2.1 | |
| 2124 */ | |
| 2125 public void prependAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2126 | |
| 2127 if (strategy is null || contentType is null) | |
| 2128 throw new IllegalArgumentException(); | |
| 2129 | |
| 2130 if (fAutoIndentStrategies is null) | |
| 2131 fAutoIndentStrategies= new HashMap(); | |
| 2132 | |
| 134 | 2133 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2134 if (autoEditStrategies is null) { |
| 2135 autoEditStrategies= new ArrayList(); | |
| 2136 fAutoIndentStrategies.put(contentType, autoEditStrategies); | |
| 2137 } | |
| 2138 | |
| 2139 autoEditStrategies.add(0, strategy); | |
| 2140 } | |
| 2141 | |
| 2142 /* | |
| 2143 * @see dwtx.jface.text.ITextViewerExtension2#removeAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2144 * @since 2.1 | |
| 2145 */ | |
| 2146 public void removeAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2147 if (fAutoIndentStrategies is null) | |
| 2148 return; | |
| 2149 | |
| 134 | 2150 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2151 if (autoEditStrategies is null) |
| 2152 return; | |
| 2153 | |
| 2154 for (final Iterator iterator= autoEditStrategies.iterator(); iterator.hasNext(); ) { | |
| 2155 if (iterator.next().equals(strategy)) { | |
| 2156 iterator.remove(); | |
| 2157 break; | |
| 2158 } | |
| 2159 } | |
| 2160 | |
| 2161 if (autoEditStrategies.isEmpty()) | |
| 2162 fAutoIndentStrategies.put(contentType, null); | |
| 2163 } | |
| 2164 | |
| 2165 /* | |
| 2166 * @see ITextViewer#setEventConsumer(IEventConsumer) | |
| 2167 */ | |
| 2168 public void setEventConsumer(IEventConsumer consumer) { | |
| 2169 fEventConsumer= consumer; | |
| 2170 } | |
| 2171 | |
| 2172 /* | |
| 2173 * @see ITextViewer#setIndentPrefixes(String[], String) | |
| 2174 */ | |
| 2175 public void setIndentPrefixes(String[] indentPrefixes, String contentType) { | |
| 2176 | |
| 2177 int i= -1; | |
| 2178 bool ok= (indentPrefixes !is null); | |
| 2179 while (ok && ++i < indentPrefixes.length) | |
| 2180 ok= (indentPrefixes[i] !is null); | |
| 2181 | |
| 2182 if (ok) { | |
| 2183 | |
| 2184 if (fIndentChars is null) | |
| 2185 fIndentChars= new HashMap(); | |
| 2186 | |
| 2187 fIndentChars.put(contentType, indentPrefixes); | |
| 2188 | |
| 2189 } else if (fIndentChars !is null) | |
| 2190 fIndentChars.remove(contentType); | |
| 2191 } | |
| 2192 | |
| 2193 /* | |
| 2194 * @see ITextViewer#getTopInset() | |
| 2195 */ | |
| 2196 public int getTopInset() { | |
| 2197 return fTopInset; | |
| 2198 } | |
| 2199 | |
| 2200 /* | |
| 2201 * @see ITextViewer#isEditable() | |
| 2202 */ | |
| 2203 public bool isEditable() { | |
| 2204 if (fTextWidget is null) | |
| 2205 return false; | |
| 2206 return fTextWidget.getEditable(); | |
| 2207 } | |
| 2208 | |
| 2209 /* | |
| 2210 * @see ITextViewer#setEditable(bool) | |
| 2211 */ | |
| 2212 public void setEditable(bool editable) { | |
| 2213 if (fTextWidget !is null) | |
| 2214 fTextWidget.setEditable(editable); | |
| 2215 } | |
| 2216 | |
| 2217 /* | |
| 2218 * @see ITextViewer#setDefaultPrefixes | |
| 2219 * @since 2.0 | |
| 2220 */ | |
| 2221 public void setDefaultPrefixes(String[] defaultPrefixes, String contentType) { | |
| 2222 | |
| 2223 if (defaultPrefixes !is null && defaultPrefixes.length > 0) { | |
| 2224 if (fDefaultPrefixChars is null) | |
| 2225 fDefaultPrefixChars= new HashMap(); | |
| 2226 fDefaultPrefixChars.put(contentType, defaultPrefixes); | |
| 2227 } else if (fDefaultPrefixChars !is null) | |
| 2228 fDefaultPrefixChars.remove(contentType); | |
| 2229 } | |
| 2230 | |
| 2231 /* | |
| 2232 * @see ITextViewer#setUndoManager(IUndoManager) | |
| 2233 */ | |
| 2234 public void setUndoManager(IUndoManager undoManager) { | |
| 2235 fUndoManager= undoManager; | |
| 2236 } | |
| 2237 | |
| 2238 /* | |
| 2239 * @see ITextViewerExtension6#getUndoManager() | |
| 2240 * @since 3.1 | |
| 2241 */ | |
| 2242 public IUndoManager getUndoManager() { | |
| 2243 return fUndoManager; | |
| 2244 } | |
| 2245 | |
| 2246 /* | |
| 2247 * @see ITextViewer#setTextHover(ITextHover, String) | |
| 2248 */ | |
| 2249 public void setTextHover(ITextHover hover, String contentType) { | |
| 2250 setTextHover(hover, contentType, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2251 } | |
| 2252 | |
| 2253 /* | |
| 2254 * @see ITextViewerExtension2#setTextHover(ITextHover, String, int) | |
| 2255 * @since 2.1 | |
| 2256 */ | |
| 2257 public void setTextHover(ITextHover hover, String contentType, int stateMask) { | |
| 2258 TextHoverKey key= new TextHoverKey(contentType, stateMask); | |
| 2259 if (hover !is null) { | |
| 2260 if (fTextHovers is null) { | |
| 2261 fTextHovers= new HashMap(); | |
| 2262 } | |
| 2263 fTextHovers.put(key, hover); | |
| 2264 } else if (fTextHovers !is null) | |
| 2265 fTextHovers.remove(key); | |
| 2266 | |
| 2267 ensureHoverControlManagerInstalled(); | |
| 2268 } | |
| 2269 | |
| 2270 /* | |
| 2271 * @see ITextViewerExtension2#removeTextHovers(String) | |
| 2272 * @since 2.1 | |
| 2273 */ | |
| 2274 public void removeTextHovers(String contentType) { | |
| 2275 if (fTextHovers is null) | |
| 2276 return; | |
| 2277 | |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
2278 Iterator iter= (new HashSet(fTextHovers.keySet())).iterator(); |
| 129 | 2279 while (iter.hasNext()) { |
| 134 | 2280 TextHoverKey key= cast(TextHoverKey)iter.next(); |
| 129 | 2281 if (key.fContentType.equals(contentType)) |
| 2282 fTextHovers.remove(key); | |
| 2283 } | |
| 2284 } | |
| 2285 | |
| 2286 /** | |
| 2287 * Returns the text hover for a given offset. | |
| 2288 * | |
| 2289 * @param offset the offset for which to return the text hover | |
| 2290 * @return the text hover for the given offset | |
| 2291 */ | |
| 2292 protected ITextHover getTextHover(int offset) { | |
| 2293 return getTextHover(offset, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2294 } | |
| 2295 | |
| 2296 /** | |
| 2297 * Returns the text hover for a given offset and a given state mask. | |
| 2298 * | |
| 2299 * @param offset the offset for which to return the text hover | |
| 2300 * @param stateMask the DWT event state mask | |
| 2301 * @return the text hover for the given offset and state mask | |
| 2302 * @since 2.1 | |
| 2303 */ | |
| 2304 protected ITextHover getTextHover(int offset, int stateMask) { | |
| 2305 if (fTextHovers is null) | |
| 2306 return null; | |
| 2307 | |
| 2308 IDocument document= getDocument(); | |
| 2309 if (document is null) | |
| 2310 return null; | |
| 2311 | |
| 2312 try { | |
| 2313 TextHoverKey key= new TextHoverKey(TextUtilities.getContentType(document, getDocumentPartitioning(), offset, true), stateMask); | |
| 2314 Object textHover= fTextHovers.get(key); | |
| 2315 if (textHover is null) { | |
| 2316 // Use default text hover | |
| 2317 key.setStateMask(ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2318 textHover= fTextHovers.get(key); | |
| 2319 } | |
| 134 | 2320 return cast(ITextHover) textHover; |
| 129 | 2321 } catch (BadLocationException x) { |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
2322 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2323 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 2324 } |
| 2325 return null; | |
| 2326 } | |
| 2327 | |
| 2328 /** | |
| 2329 * Returns the text hovering controller of this viewer. | |
| 2330 * | |
| 2331 * @return the text hovering controller of this viewer | |
| 2332 * @since 2.0 | |
| 2333 */ | |
| 2334 protected AbstractInformationControlManager getTextHoveringController() { | |
| 2335 return fTextHoverManager; | |
| 2336 } | |
| 2337 | |
| 2338 /** | |
| 2339 * Sets the creator for the hover controls. | |
| 2340 * | |
| 2341 * @param creator the hover control creator | |
| 2342 * @since 2.0 | |
| 2343 */ | |
| 2344 public void setHoverControlCreator(IInformationControlCreator creator) { | |
| 2345 fHoverControlCreator= creator; | |
| 2346 } | |
| 2347 | |
| 2348 /** | |
| 2349 * {@inheritDoc} | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2350 * |
| 129 | 2351 * @since 3.4 |
| 2352 */ | |
| 2353 public void setHoverEnrichMode(ITextViewerExtension8.EnrichMode mode) { | |
| 2354 if (fTextHoverManager is null) | |
| 2355 return; | |
| 2356 fTextHoverManager.setHoverEnrichMode(mode); | |
| 2357 } | |
| 2358 | |
| 2359 /* | |
| 2360 * @see IWidgetTokenOwner#requestWidgetToken(IWidgetTokenKeeper) | |
| 2361 * @since 2.0 | |
| 2362 */ | |
| 2363 public bool requestWidgetToken(IWidgetTokenKeeper requester) { | |
| 2364 if (fTextWidget !is null) { | |
| 2365 if (fWidgetTokenKeeper !is null) { | |
| 2366 if (fWidgetTokenKeeper is requester) | |
| 2367 return true; | |
| 2368 if (fWidgetTokenKeeper.requestWidgetToken(this)) { | |
| 2369 fWidgetTokenKeeper= requester; | |
| 2370 return true; | |
| 2371 } | |
| 2372 } else { | |
| 2373 fWidgetTokenKeeper= requester; | |
| 2374 return true; | |
| 2375 } | |
| 2376 } | |
| 2377 return false; | |
| 2378 } | |
| 2379 | |
| 2380 /* | |
| 2381 * @see dwtx.jface.text.IWidgetTokenOwnerExtension#requestWidgetToken(dwtx.jface.text.IWidgetTokenKeeper, int) | |
| 2382 * @since 3.0 | |
| 2383 */ | |
| 2384 public bool requestWidgetToken(IWidgetTokenKeeper requester, int priority) { | |
| 2385 if (fTextWidget !is null) { | |
| 2386 if (fWidgetTokenKeeper !is null) { | |
| 2387 | |
| 2388 if (fWidgetTokenKeeper is requester) | |
| 2389 return true; | |
| 2390 | |
| 2391 bool accepted= false; | |
| 138 | 2392 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 2393 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 2394 accepted= extension.requestWidgetToken(this, priority); |
| 2395 } else { | |
| 2396 accepted= fWidgetTokenKeeper.requestWidgetToken(this); | |
| 2397 } | |
| 2398 | |
| 2399 if (accepted) { | |
| 2400 fWidgetTokenKeeper= requester; | |
| 2401 return true; | |
| 2402 } | |
| 2403 | |
| 2404 } else { | |
| 2405 fWidgetTokenKeeper= requester; | |
| 2406 return true; | |
| 2407 } | |
| 2408 } | |
| 2409 return false; | |
| 2410 } | |
| 2411 | |
| 2412 /* | |
| 2413 * @see IWidgetTokenOwner#releaseWidgetToken(IWidgetTokenKeeper) | |
| 2414 * @since 2.0 | |
| 2415 */ | |
| 2416 public void releaseWidgetToken(IWidgetTokenKeeper tokenKeeper) { | |
| 2417 if (fWidgetTokenKeeper is tokenKeeper) | |
| 2418 fWidgetTokenKeeper= null; | |
| 2419 } | |
| 2420 | |
| 2421 | |
| 2422 //---- Selection | |
| 2423 | |
| 2424 /* | |
| 2425 * @see ITextViewer#getSelectedRange() | |
| 2426 */ | |
| 2427 public Point getSelectedRange() { | |
| 2428 | |
| 2429 if (!redraws() && fViewerState !is null) | |
| 2430 return fViewerState.getSelection(); | |
| 2431 | |
| 2432 if (fTextWidget !is null) { | |
| 2433 Point p= fTextWidget.getSelectionRange(); | |
| 2434 p= widgetSelection2ModelSelection(p); | |
| 2435 if (p !is null) | |
| 2436 return p; | |
| 2437 } | |
| 2438 | |
| 2439 return new Point(-1, -1); | |
| 2440 } | |
| 2441 | |
| 2442 /* | |
| 2443 * @see ITextViewer#setSelectedRange(int, int) | |
| 2444 */ | |
| 2445 public void setSelectedRange(int selectionOffset, int selectionLength) { | |
| 2446 | |
| 2447 if (!redraws()) { | |
| 2448 if (fViewerState !is null) | |
| 2449 fViewerState.updateSelection(selectionOffset, selectionLength); | |
| 2450 return; | |
| 2451 } | |
| 2452 | |
| 2453 if (fTextWidget is null) | |
| 2454 return; | |
| 2455 | |
| 2456 IRegion widgetSelection= modelRange2ClosestWidgetRange(new Region(selectionOffset, selectionLength)); | |
| 2457 if (widgetSelection !is null) { | |
| 2458 | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2459 int[] selectionRange= [ widgetSelection.getOffset(), widgetSelection.getLength() ]; |
| 129 | 2460 validateSelectionRange(selectionRange); |
| 2461 if (selectionRange[0] >= 0) { | |
| 2462 fTextWidget.setSelectionRange(selectionRange[0], selectionRange[1]); | |
| 2463 selectionChanged(selectionRange[0], selectionRange[1]); | |
| 2464 } | |
| 2465 } | |
| 2466 } | |
| 2467 | |
| 2468 /** | |
| 2469 * Validates and adapts the given selection range if it is not a valid | |
| 2470 * widget selection. The widget selection is invalid if it starts or ends | |
| 2471 * inside a multi-character line delimiter. If so, the selection is adapted to | |
| 2472 * start <b>after</b> the divided line delimiter and to end <b>before</b> | |
| 2473 * the divided line delimiter. The parameter passed in is changed in-place | |
| 2474 * when being adapted. An adaptation to <code>[-1, -1]</code> indicates | |
| 2475 * that the selection range could not be validated. | |
| 2476 * Subclasses may reimplement this method. | |
| 2477 * | |
| 2478 * @param selectionRange selectionRange[0] is the offset, selectionRange[1] | |
| 2479 * the length of the selection to validate. | |
| 2480 * @since 2.0 | |
| 2481 */ | |
| 2482 protected void validateSelectionRange(int[] selectionRange) { | |
| 2483 | |
| 2484 IDocument document= getVisibleDocument(); | |
| 2485 if (document is null) { | |
| 2486 selectionRange[0]= -1; | |
| 2487 selectionRange[1]= -1; | |
| 2488 return; | |
| 2489 } | |
| 2490 | |
| 2491 int documentLength= document.getLength(); | |
| 2492 int offset= selectionRange[0]; | |
| 2493 int length= selectionRange[1]; | |
| 2494 | |
| 2495 if (length < 0) { | |
| 2496 length= - length; | |
| 2497 offset -= length; | |
| 2498 } | |
| 2499 | |
| 2500 if (offset <0) | |
| 2501 offset= 0; | |
| 2502 | |
| 2503 if (offset > documentLength) | |
| 2504 offset= documentLength; | |
| 2505 | |
| 2506 int delta= (offset + length) - documentLength; | |
| 2507 if (delta > 0) | |
| 2508 length -= delta; | |
| 2509 | |
| 2510 try { | |
| 2511 | |
| 2512 int lineNumber= document.getLineOfOffset(offset); | |
| 2513 IRegion lineInformation= document.getLineInformation(lineNumber); | |
| 2514 | |
| 2515 int lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2516 delta= offset - lineEnd; | |
| 2517 if (delta > 0) { | |
| 2518 // in the middle of a multi-character line delimiter | |
| 2519 offset= lineEnd; | |
| 2520 String delimiter= document.getLineDelimiter(lineNumber); | |
| 2521 if (delimiter !is null) | |
| 2522 offset += delimiter.length(); | |
| 2523 } | |
| 2524 | |
| 2525 int end= offset + length; | |
| 2526 lineInformation= document.getLineInformationOfOffset(end); | |
| 2527 lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2528 delta= end - lineEnd; | |
| 2529 if (delta > 0) { | |
| 2530 // in the middle of a multi-character line delimiter | |
| 2531 length -= delta; | |
| 2532 } | |
| 2533 | |
| 2534 } catch (BadLocationException x) { | |
| 2535 selectionRange[0]= -1; | |
| 2536 selectionRange[1]= -1; | |
| 2537 return; | |
| 2538 } | |
| 2539 | |
| 2540 if (selectionRange[1] < 0) { | |
| 2541 selectionRange[0]= offset + length; | |
| 2542 selectionRange[1]= -length; | |
| 2543 } else { | |
| 2544 selectionRange[0]= offset; | |
| 2545 selectionRange[1]= length; | |
| 2546 } | |
| 2547 } | |
| 2548 | |
| 2549 /* | |
| 2550 * @see Viewer#setSelection(ISelection) | |
| 2551 */ | |
| 2552 public void setSelection(ISelection selection, bool reveal) { | |
| 138 | 2553 if ( cast(ITextSelection)selection ) { |
| 134 | 2554 ITextSelection s= cast(ITextSelection) selection; |
| 129 | 2555 setSelectedRange(s.getOffset(), s.getLength()); |
| 2556 if (reveal) | |
| 2557 revealRange(s.getOffset(), s.getLength()); | |
| 2558 } | |
| 2559 } | |
| 2560 | |
| 2561 /* | |
| 2562 * @see Viewer#getSelection() | |
| 2563 */ | |
| 2564 public ISelection getSelection() { | |
| 2565 Point p= getSelectedRange(); | |
| 2566 if (p.x is -1 || p.y is -1) | |
| 2567 return TextSelection.emptySelection(); | |
| 2568 | |
| 2569 return new TextSelection(getDocument(), p.x, p.y); | |
| 2570 } | |
| 2571 | |
| 2572 /* | |
| 2573 * @see ITextViewer#getSelectionProvider() | |
| 2574 */ | |
| 2575 public ISelectionProvider getSelectionProvider() { | |
| 2576 return this; | |
| 2577 } | |
| 2578 | |
| 2579 /* | |
| 2580 * @see dwtx.jface.text.IPostSelectionProvider#addPostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2581 * @since 3.0 | |
| 2582 */ | |
| 2583 public void addPostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2584 | |
| 2585 Assert.isNotNull(listener); | |
| 2586 | |
| 2587 if (fPostSelectionChangedListeners is null) | |
| 2588 fPostSelectionChangedListeners= new ArrayList(); | |
| 2589 | |
| 2590 if (!fPostSelectionChangedListeners.contains(listener)) | |
| 2591 fPostSelectionChangedListeners.add(listener); | |
| 2592 } | |
| 2593 | |
| 2594 /* | |
| 2595 * @see dwtx.jface.text.IPostSelectionProvider#removePostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2596 * @since 3.0 | |
| 2597 */ | |
| 2598 public void removePostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2599 | |
| 2600 Assert.isNotNull(listener); | |
| 2601 | |
| 2602 if (fPostSelectionChangedListeners !is null) { | |
| 2603 fPostSelectionChangedListeners.remove(listener); | |
| 2604 if (fPostSelectionChangedListeners.size() is 0) | |
| 2605 fPostSelectionChangedListeners= null; | |
| 2606 } | |
| 2607 } | |
| 2608 | |
| 2609 /** | |
| 2610 * Get the text widget's display. | |
| 2611 * | |
| 2612 * @return the display or <code>null</code> if the display cannot be retrieved or if the display is disposed | |
| 2613 * @since 3.0 | |
| 2614 */ | |
| 2615 private Display getDisplay() { | |
| 2616 if (fTextWidget is null || fTextWidget.isDisposed()) | |
| 2617 return null; | |
| 2618 | |
| 2619 Display display= fTextWidget.getDisplay(); | |
| 2620 if (display !is null && display.isDisposed()) | |
| 2621 return null; | |
| 2622 | |
| 2623 return display; | |
| 2624 } | |
| 2625 | |
| 2626 /** | |
| 2627 * Starts a timer to send out a post selection changed event. | |
| 2628 * | |
| 2629 * @param fireEqualSelection <code>true</code> iff the event must be fired if the selection does not change | |
| 2630 * @since 3.0 | |
| 2631 */ | |
| 156 | 2632 private void queuePostSelectionChanged(bool fireEqualSelection) { |
| 129 | 2633 Display display= getDisplay(); |
| 2634 if (display is null) | |
| 2635 return; | |
| 2636 | |
| 2637 fNumberOfPostSelectionChangedEvents[0]++; | |
| 135 | 2638 display.timerExec(getEmptySelectionChangedEventDelay(), new class() Runnable { |
| 129 | 2639 final int id= fNumberOfPostSelectionChangedEvents[0]; |
| 2640 public void run() { | |
| 2641 if (id is fNumberOfPostSelectionChangedEvents[0]) { | |
| 2642 // Check again because this is executed after the delay | |
| 2643 if (getDisplay() !is null) { | |
| 2644 Point selection= fTextWidget.getSelectionRange(); | |
| 2645 if (selection !is null) { | |
| 2646 IRegion r= widgetRange2ModelRange(new Region(selection.x, selection.y)); | |
| 2647 if (fireEqualSelection || (r !is null && !r.equals(fLastSentPostSelectionChange)) || r is null) { | |
| 2648 fLastSentPostSelectionChange= r; | |
| 2649 firePostSelectionChanged(selection.x, selection.y); | |
| 2650 } | |
| 2651 } | |
| 2652 } | |
| 2653 } | |
| 2654 } | |
| 2655 }); | |
| 2656 } | |
| 2657 | |
| 2658 /** | |
| 2659 * Sends out a text selection changed event to all registered post selection changed listeners. | |
| 2660 * | |
| 2661 * @param offset the offset of the newly selected range in the visible document | |
| 2662 * @param length the length of the newly selected range in the visible document | |
| 2663 * @since 3.0 | |
| 2664 */ | |
| 2665 protected void firePostSelectionChanged(int offset, int length) { | |
| 2666 if (redraws()) { | |
| 2667 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2668 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2669 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2670 firePostSelectionChanged(event); | |
| 2671 } | |
| 2672 } | |
| 2673 | |
| 2674 /** | |
| 2675 * Sends out a text selection changed event to all registered listeners and | |
| 2676 * registers the selection changed event to be sent out to all post selection | |
| 2677 * listeners. | |
| 2678 * | |
| 2679 * @param offset the offset of the newly selected range in the visible document | |
| 2680 * @param length the length of the newly selected range in the visible document | |
| 2681 */ | |
| 2682 protected void selectionChanged(int offset, int length) { | |
| 2683 queuePostSelectionChanged(true); | |
| 2684 fireSelectionChanged(offset, length); | |
| 2685 } | |
| 2686 | |
| 2687 /** | |
| 2688 * Sends out a text selection changed event to all registered listeners. | |
| 2689 * | |
| 2690 * @param offset the offset of the newly selected range in the visible document | |
| 2691 * @param length the length of the newly selected range in the visible document | |
| 2692 * @since 3.0 | |
| 2693 */ | |
| 2694 protected void fireSelectionChanged(int offset, int length) { | |
| 2695 if (redraws()) { | |
| 2696 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2697 if ((r !is null && !r.equals(fLastSentSelectionChange)) || r is null) { | |
| 2698 fLastSentSelectionChange= r; | |
| 2699 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2700 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2701 fireSelectionChanged(event); | |
| 2702 } | |
| 2703 } | |
| 2704 } | |
| 2705 | |
| 2706 /** | |
| 2707 * Sends the given event to all registered post selection changed listeners. | |
| 2708 * | |
| 2709 * @param event the selection event | |
| 2710 * @since 3.0 | |
| 2711 */ | |
| 2712 private void firePostSelectionChanged(SelectionChangedEvent event) { | |
| 2713 List listeners= fPostSelectionChangedListeners; | |
| 2714 if (listeners !is null) { | |
| 2715 listeners= new ArrayList(listeners); | |
| 2716 for (int i= 0; i < listeners.size(); i++) { | |
| 134 | 2717 ISelectionChangedListener l= cast(ISelectionChangedListener) listeners.get(i); |
| 129 | 2718 l.selectionChanged(event); |
| 2719 } | |
| 2720 } | |
| 2721 } | |
| 2722 | |
| 2723 /** | |
| 2724 * Sends out a mark selection changed event to all registered listeners. | |
| 2725 * | |
| 2726 * @param offset the offset of the mark selection in the visible document, the offset is <code>-1</code> if the mark was cleared | |
| 2727 * @param length the length of the mark selection, may be negative if the caret is before the mark. | |
| 2728 * @since 2.0 | |
| 2729 */ | |
| 2730 protected void markChanged(int offset, int length) { | |
| 2731 if (redraws()) { | |
| 2732 | |
| 2733 if (offset !is -1) { | |
| 2734 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2735 offset= r.getOffset(); | |
| 2736 length= r.getLength(); | |
| 2737 } | |
| 2738 | |
| 2739 ISelection selection= new MarkSelection(getDocument(), offset, length); | |
| 2740 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2741 fireSelectionChanged(event); | |
| 2742 } | |
| 2743 } | |
| 2744 | |
| 2745 | |
| 2746 //---- Text listeners | |
| 2747 | |
| 2748 /* | |
| 2749 * @see ITextViewer#addTextListener(ITextListener) | |
| 2750 */ | |
| 2751 public void addTextListener(ITextListener listener) { | |
| 2752 | |
| 2753 Assert.isNotNull(listener); | |
| 2754 | |
| 2755 if (fTextListeners is null) | |
| 2756 fTextListeners= new ArrayList(); | |
| 2757 | |
| 2758 if (!fTextListeners.contains(listener)) | |
| 2759 fTextListeners.add(listener); | |
| 2760 } | |
| 2761 | |
| 2762 /* | |
| 2763 * @see ITextViewer#removeTextListener(ITextListener) | |
| 2764 */ | |
| 2765 public void removeTextListener(ITextListener listener) { | |
| 2766 | |
| 2767 Assert.isNotNull(listener); | |
| 2768 | |
| 2769 if (fTextListeners !is null) { | |
| 2770 fTextListeners.remove(listener); | |
| 2771 if (fTextListeners.size() is 0) | |
| 2772 fTextListeners= null; | |
| 2773 } | |
| 2774 } | |
| 2775 | |
| 2776 /** | |
| 2777 * Informs all registered text listeners about the change specified by the | |
| 2778 * widget command. This method does not use a robust iterator. | |
| 2779 * | |
| 2780 * @param cmd the widget command translated into a text event sent to all text listeners | |
| 2781 */ | |
| 2782 protected void updateTextListeners(WidgetCommand cmd) { | |
| 2783 List textListeners= fTextListeners; | |
| 2784 if (textListeners !is null) { | |
| 2785 textListeners= new ArrayList(textListeners); | |
| 2786 DocumentEvent event= cmd.event; | |
| 138 | 2787 if ( cast(SlaveDocumentEvent)event ) |
| 134 | 2788 event= (cast(SlaveDocumentEvent) event).getMasterEvent(); |
| 129 | 2789 |
| 2790 TextEvent e= new TextEvent(cmd.start, cmd.length, cmd.text, cmd.preservedText, event, redraws()); | |
| 2791 for (int i= 0; i < textListeners.size(); i++) { | |
| 134 | 2792 ITextListener l= cast(ITextListener) textListeners.get(i); |
| 129 | 2793 l.textChanged(e); |
| 2794 } | |
| 2795 } | |
| 2796 } | |
| 2797 | |
| 2798 //---- Text input listeners | |
| 2799 | |
| 2800 /* | |
| 2801 * @see ITextViewer#addTextInputListener(ITextInputListener) | |
| 2802 */ | |
| 2803 public void addTextInputListener(ITextInputListener listener) { | |
| 2804 | |
| 2805 Assert.isNotNull(listener); | |
| 2806 | |
| 2807 if (fTextInputListeners is null) | |
| 2808 fTextInputListeners= new ArrayList(); | |
| 2809 | |
| 2810 if (!fTextInputListeners.contains(listener)) | |
| 2811 fTextInputListeners.add(listener); | |
| 2812 } | |
| 2813 | |
| 2814 /* | |
| 2815 * @see ITextViewer#removeTextInputListener(ITextInputListener) | |
| 2816 */ | |
| 2817 public void removeTextInputListener(ITextInputListener listener) { | |
| 2818 | |
| 2819 Assert.isNotNull(listener); | |
| 2820 | |
| 2821 if (fTextInputListeners !is null) { | |
| 2822 fTextInputListeners.remove(listener); | |
| 2823 if (fTextInputListeners.size() is 0) | |
| 2824 fTextInputListeners= null; | |
| 2825 } | |
| 2826 } | |
| 2827 | |
| 2828 /** | |
| 2829 * Informs all registered text input listeners about the forthcoming input change, | |
| 2830 * This method does not use a robust iterator. | |
| 2831 * | |
| 2832 * @param oldInput the old input document | |
| 2833 * @param newInput the new input document | |
| 2834 */ | |
| 2835 protected void fireInputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) { | |
| 2836 List listener= fTextInputListeners; | |
| 2837 if (listener !is null) { | |
| 2838 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2839 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2840 l.inputDocumentAboutToBeChanged(oldInput, newInput); |
| 2841 } | |
| 2842 } | |
| 2843 } | |
| 2844 | |
| 2845 /** | |
| 2846 * Informs all registered text input listeners about the successful input change, | |
| 2847 * This method does not use a robust iterator. | |
| 2848 * | |
| 2849 * @param oldInput the old input document | |
| 2850 * @param newInput the new input document | |
| 2851 */ | |
| 2852 protected void fireInputDocumentChanged(IDocument oldInput, IDocument newInput) { | |
| 2853 List listener= fTextInputListeners; | |
| 2854 if (listener !is null) { | |
| 2855 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2856 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2857 l.inputDocumentChanged(oldInput, newInput); |
| 2858 } | |
| 2859 } | |
| 2860 } | |
| 2861 | |
| 2862 //---- Document | |
| 2863 | |
| 2864 /* | |
| 2865 * @see Viewer#getInput() | |
| 2866 */ | |
| 2867 public Object getInput() { | |
| 2868 return getDocument(); | |
| 2869 } | |
| 2870 | |
| 2871 /* | |
| 2872 * @see ITextViewer#getDocument() | |
| 2873 */ | |
| 2874 public IDocument getDocument() { | |
| 2875 return fDocument; | |
| 2876 } | |
| 2877 | |
| 2878 /* | |
| 2879 * @see Viewer#setInput(Object) | |
| 2880 */ | |
| 2881 public void setInput(Object input) { | |
| 2882 | |
| 2883 IDocument document= null; | |
| 138 | 2884 if ( cast(IDocument)input ) |
| 134 | 2885 document= cast(IDocument) input; |
| 129 | 2886 |
| 2887 setDocument(document); | |
| 2888 } | |
| 2889 | |
| 2890 /* | |
| 2891 * @see ITextViewer#setDocument(IDocument) | |
| 2892 */ | |
| 2893 public void setDocument(IDocument document) { | |
| 2894 | |
| 2895 fReplaceTextPresentation= true; | |
| 2896 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2897 | |
| 2898 IDocument oldDocument= fDocument; | |
| 2899 fDocument= document; | |
| 2900 | |
| 2901 setVisibleDocument(fDocument); | |
| 2902 | |
| 2903 resetPlugins(); | |
| 2904 inputChanged(fDocument, oldDocument); | |
| 2905 | |
| 2906 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2907 fLastSentSelectionChange= null; | |
| 2908 fReplaceTextPresentation= false; | |
| 2909 } | |
| 2910 | |
| 2911 /* | |
| 2912 * @see ITextViewer#setDocument(IDocument, int, int) | |
| 2913 */ | |
| 2914 public void setDocument(IDocument document, int modelRangeOffset, int modelRangeLength) { | |
| 2915 | |
| 2916 fReplaceTextPresentation= true; | |
| 2917 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2918 | |
| 2919 IDocument oldDocument= fDocument; | |
| 2920 fDocument= document; | |
| 2921 | |
| 2922 try { | |
| 2923 | |
| 2924 IDocument slaveDocument= createSlaveDocument(document); | |
| 2925 updateSlaveDocument(slaveDocument, modelRangeOffset, modelRangeLength); | |
| 2926 setVisibleDocument(slaveDocument); | |
| 2927 | |
| 2928 } catch (BadLocationException x) { | |
| 2929 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_1")); //$NON-NLS-1$ | |
| 2930 } | |
| 2931 | |
| 2932 resetPlugins(); | |
| 2933 inputChanged(fDocument, oldDocument); | |
| 2934 | |
| 2935 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2936 fLastSentSelectionChange= null; | |
| 2937 fReplaceTextPresentation= false; | |
| 2938 } | |
| 2939 | |
| 2940 /** | |
| 2941 * Creates a slave document for the given document if there is a slave document manager | |
| 2942 * associated with this viewer. | |
| 2943 * | |
| 2944 * @param document the master document | |
| 2945 * @return the newly created slave document | |
| 2946 * @since 2.1 | |
| 2947 */ | |
| 2948 protected IDocument createSlaveDocument(IDocument document) { | |
| 2949 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 2950 if (manager !is null) { | |
| 2951 if (manager.isSlaveDocument(document)) | |
| 2952 return document; | |
| 2953 return manager.createSlaveDocument(document); | |
| 2954 } | |
| 2955 return document; | |
| 2956 } | |
| 2957 | |
| 2958 /** | |
| 2959 * Sets the given slave document to the specified range of its master document. | |
| 2960 * | |
| 2961 * @param visibleDocument the slave document | |
| 2962 * @param visibleRegionOffset the offset of the master document range | |
| 2963 * @param visibleRegionLength the length of the master document range | |
| 2964 * @return <code>true</code> if the slave has been adapted successfully | |
| 2965 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 2966 * @since 2.1 | |
| 2967 * @deprecated use <code>updateSlaveDocument</code> instead | |
| 2968 */ | |
|
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2969 protected bool updateVisibleDocument(IDocument visibleDocument, int visibleRegionOffset, int visibleRegionLength) { |
| 138 | 2970 if ( cast(ChildDocument)visibleDocument ) { |
| 134 | 2971 ChildDocument childDocument= cast(ChildDocument) visibleDocument; |
| 129 | 2972 |
| 2973 IDocument document= childDocument.getParentDocument(); | |
| 2974 int line= document.getLineOfOffset(visibleRegionOffset); | |
| 2975 int offset= document.getLineOffset(line); | |
| 2976 int length= (visibleRegionOffset - offset) + visibleRegionLength; | |
| 2977 | |
| 2978 Position parentRange= childDocument.getParentDocumentRange(); | |
| 2979 if (offset !is parentRange.getOffset() || length !is parentRange.getLength()) { | |
| 2980 childDocument.setParentDocumentRange(offset, length); | |
| 2981 return true; | |
| 2982 } | |
| 2983 } | |
| 2984 return false; | |
| 2985 } | |
| 2986 | |
| 2987 /** | |
| 2988 * Updates the given slave document to show the specified range of its master document. | |
| 2989 * | |
| 2990 * @param slaveDocument the slave document | |
| 2991 * @param modelRangeOffset the offset of the master document range | |
| 2992 * @param modelRangeLength the length of the master document range | |
| 2993 * @return <code>true</code> if the slave has been adapted successfully | |
| 2994 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 2995 * @since 3.0 | |
| 2996 */ | |
|
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2997 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) { |
| 129 | 2998 return updateVisibleDocument(slaveDocument, modelRangeOffset, modelRangeLength); |
| 2999 } | |
| 3000 | |
| 3001 | |
| 3002 | |
| 3003 //---- View ports | |
| 3004 | |
| 3005 /** | |
| 3006 * Initializes all listeners and structures required to set up view port listeners. | |
| 3007 */ | |
| 3008 private void initializeViewportUpdate() { | |
| 3009 | |
| 3010 if (fViewportGuard !is null) | |
| 3011 return; | |
| 3012 | |
| 3013 if (fTextWidget !is null) { | |
| 3014 | |
| 3015 fViewportGuard= new ViewportGuard(); | |
| 3016 fLastTopPixel= -1; | |
| 3017 | |
| 3018 fTextWidget.addKeyListener(fViewportGuard); | |
| 3019 fTextWidget.addMouseListener(fViewportGuard); | |
| 3020 | |
| 3021 fScroller= fTextWidget.getVerticalBar(); | |
| 3022 if (fScroller !is null) | |
| 3023 fScroller.addSelectionListener(fViewportGuard); | |
| 3024 } | |
| 3025 } | |
| 3026 | |
| 3027 /** | |
| 3028 * Removes all listeners and structures required to set up view port listeners. | |
| 3029 */ | |
| 3030 private void removeViewPortUpdate() { | |
| 3031 | |
| 3032 if (fTextWidget !is null) { | |
| 3033 | |
| 3034 fTextWidget.removeKeyListener(fViewportGuard); | |
| 3035 fTextWidget.removeMouseListener(fViewportGuard); | |
| 3036 | |
| 3037 if (fScroller !is null && !fScroller.isDisposed()) { | |
| 3038 fScroller.removeSelectionListener(fViewportGuard); | |
| 3039 fScroller= null; | |
| 3040 } | |
| 3041 | |
| 3042 fViewportGuard= null; | |
| 3043 } | |
| 3044 } | |
| 3045 | |
| 3046 /* | |
| 3047 * @see ITextViewer#addViewportListener(IViewportListener) | |
| 3048 */ | |
| 3049 public void addViewportListener(IViewportListener listener) { | |
| 3050 | |
| 3051 if (fViewportListeners is null) { | |
| 3052 fViewportListeners= new ArrayList(); | |
| 3053 initializeViewportUpdate(); | |
| 3054 } | |
| 3055 | |
| 3056 if (!fViewportListeners.contains(listener)) | |
| 3057 fViewportListeners.add(listener); | |
| 3058 } | |
| 3059 | |
| 3060 /* | |
| 3061 * @see ITextViewer#removeViewportListener(IVewportListener) | |
| 3062 */ | |
| 3063 public void removeViewportListener(IViewportListener listener) { | |
| 3064 if (fViewportListeners !is null) | |
| 3065 fViewportListeners.remove(listener); | |
| 3066 } | |
| 3067 | |
| 3068 /** | |
| 3069 * Checks whether the view port changed and if so informs all registered | |
| 3070 * listeners about the change. | |
| 3071 * | |
| 3072 * @param origin describes under which circumstances this method has been called. | |
| 3073 * | |
| 3074 * @see IViewportListener | |
| 3075 */ | |
| 3076 protected void updateViewportListeners(int origin) { | |
| 3077 | |
| 3078 if (redraws()) { | |
| 3079 int topPixel= fTextWidget.getTopPixel(); | |
| 3080 if (topPixel >= 0 && topPixel !is fLastTopPixel) { | |
| 3081 if (fViewportListeners !is null) { | |
| 3082 for (int i= 0; i < fViewportListeners.size(); i++) { | |
| 134 | 3083 IViewportListener l= cast(IViewportListener) fViewportListeners.get(i); |
| 129 | 3084 l.viewportChanged(topPixel); |
| 3085 } | |
| 3086 } | |
| 3087 fLastTopPixel= topPixel; | |
| 3088 } | |
| 3089 } | |
| 3090 } | |
| 3091 | |
| 3092 //---- scrolling and revealing | |
| 3093 | |
| 3094 /* | |
| 3095 * @see ITextViewer#getTopIndex() | |
| 3096 */ | |
| 3097 public int getTopIndex() { | |
| 3098 | |
| 3099 if (fTextWidget !is null) { | |
| 3100 int top= fTextWidget.getTopIndex(); | |
| 3101 return widgetLine2ModelLine(top); | |
| 3102 } | |
| 3103 | |
| 3104 return -1; | |
| 3105 } | |
| 3106 | |
| 3107 /* | |
| 3108 * @see ITextViewer#setTopIndex(int) | |
| 3109 */ | |
| 3110 public void setTopIndex(int index) { | |
| 3111 | |
| 3112 if (fTextWidget !is null) { | |
| 3113 | |
| 3114 int widgetLine= modelLine2WidgetLine(index); | |
| 3115 if (widgetLine is -1) | |
| 3116 widgetLine= getClosestWidgetLineForModelLine(index); | |
| 3117 | |
| 3118 if (widgetLine > -1) { | |
| 3119 fTextWidget.setTopIndex(widgetLine); | |
| 3120 updateViewportListeners(INTERNAL); | |
| 3121 } | |
| 3122 } | |
| 3123 } | |
| 3124 | |
| 3125 /** | |
| 3126 * Returns the number of lines that can fully fit into the viewport. This is computed by | |
| 3127 * dividing the widget's client area height by the widget's line height. The result is only | |
| 3128 * accurate if the widget does not use variable line heights - for that reason, clients should | |
| 3129 * not use this method any longer and use the client area height of the text widget to find out | |
| 3130 * how much content fits into it. | |
|
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|
3131 * |
| 129 | 3132 * @return the view port height in lines |
| 3133 * @deprecated as of 3.2 | |
| 3134 */ | |
| 3135 protected int getVisibleLinesInViewport() { | |
| 3136 if (fTextWidget !is null) { | |
| 3137 Rectangle clArea= fTextWidget.getClientArea(); | |
| 3138 if (!clArea.isEmpty()) | |
| 3139 return clArea.height / fTextWidget.getLineHeight(); | |
| 3140 } | |
| 3141 return -1; | |
| 3142 } | |
| 3143 | |
| 3144 /* | |
| 3145 * @see ITextViewer#getBottomIndex() | |
| 3146 */ | |
| 3147 public int getBottomIndex() { | |
| 3148 | |
| 3149 if (fTextWidget is null) | |
| 3150 return -1; | |
|
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|
3151 |
| 129 | 3152 int widgetBottom= JFaceTextUtil.getBottomIndex(fTextWidget); |
| 3153 return widgetLine2ModelLine(widgetBottom); | |
| 3154 } | |
| 3155 | |
| 3156 /* | |
| 3157 * @see ITextViewer#getTopIndexStartOffset() | |
| 3158 */ | |
| 3159 public int getTopIndexStartOffset() { | |
| 3160 | |
| 3161 if (fTextWidget !is null) { | |
| 3162 int top= fTextWidget.getTopIndex(); | |
| 3163 try { | |
| 3164 top= getVisibleDocument().getLineOffset(top); | |
| 3165 return widgetOffset2ModelOffset(top); | |
| 3166 } catch (BadLocationException ex) { | |
|
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3167 if (TRACE_ERRORS) |
|
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|
3168 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getTopIndexStartOffset")); //$NON-NLS-1$ |
| 129 | 3169 } |
| 3170 } | |
| 3171 | |
| 3172 return -1; | |
| 3173 } | |
| 3174 | |
| 3175 /* | |
| 3176 * @see ITextViewer#getBottomIndexEndOffset() | |
| 3177 */ | |
| 3178 public int getBottomIndexEndOffset() { | |
| 3179 try { | |
| 3180 | |
| 3181 IRegion line= getDocument().getLineInformation(getBottomIndex()); | |
| 3182 int bottomEndOffset= line.getOffset() + line.getLength() - 1; | |
| 3183 | |
| 3184 IRegion coverage= getModelCoverage(); | |
| 3185 if (coverage is null) | |
| 3186 return -1; | |
| 3187 | |
| 3188 int coverageEndOffset= coverage.getOffset() + coverage.getLength() - 1; | |
| 3189 return Math.min(coverageEndOffset, bottomEndOffset); | |
| 3190 | |
| 3191 } catch (BadLocationException ex) { | |
|
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3192 if (TRACE_ERRORS) |
|
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|
3193 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getBottomIndexEndOffset")); //$NON-NLS-1$ |
| 129 | 3194 return getDocument().getLength() - 1; |
| 3195 } | |
| 3196 } | |
| 3197 | |
| 3198 /* | |
| 3199 * @see ITextViewer#revealRange(int, int) | |
| 3200 */ | |
| 3201 public void revealRange(int start, int length) { | |
| 3202 | |
| 3203 if (fTextWidget is null || !redraws()) | |
| 3204 return; | |
| 3205 | |
| 3206 IRegion modelRange= new Region(start, length); | |
| 3207 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange); | |
| 3208 if (widgetRange !is null) { | |
| 3209 | |
|
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|
3210 int[] range= [ widgetRange.getOffset(), widgetRange.getLength() ]; |
| 129 | 3211 validateSelectionRange(range); |
| 3212 if (range[0] >= 0) | |
| 3213 internalRevealRange(range[0], range[0] + range[1]); | |
| 3214 | |
| 3215 } else { | |
| 3216 | |
| 3217 IRegion coverage= getModelCoverage(); | |
| 3218 int cursor= (coverage is null || start < coverage.getOffset()) ? 0 : getVisibleDocument().getLength(); | |
| 3219 internalRevealRange(cursor, cursor); | |
| 3220 } | |
| 3221 } | |
| 3222 | |
| 3223 /** | |
| 3224 * Reveals the given range of the visible document. | |
| 3225 * | |
| 3226 * @param start the start offset of the range | |
| 3227 * @param end the end offset of the range | |
| 3228 */ | |
| 3229 protected void internalRevealRange(int start, int end) { | |
| 3230 | |
| 3231 try { | |
| 3232 | |
| 3233 IDocument doc= getVisibleDocument(); | |
| 3234 | |
| 3235 int startLine= doc.getLineOfOffset(start); | |
| 3236 int endLine= doc.getLineOfOffset(end); | |
| 3237 | |
| 3238 int top= fTextWidget.getTopIndex(); | |
| 3239 if (top > -1) { | |
| 3240 | |
| 3241 // scroll vertically | |
| 3242 int bottom= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 3243 int lines= bottom - top; | |
|
140
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parents:
138
diff
changeset
|
3244 |
| 129 | 3245 // if the widget is not scrollable as it is displaying the entire content |
| 3246 // setTopIndex won't have any effect. | |
| 3247 | |
| 3248 if (startLine >= top && startLine <= bottom && endLine >= top && endLine <= bottom ) { | |
| 3249 | |
| 3250 // do not scroll at all as it is already visible | |
| 3251 | |
| 3252 } else { | |
| 3253 | |
| 3254 int delta= Math.max(0, lines - (endLine - startLine)); | |
| 3255 fTextWidget.setTopIndex(startLine - delta/3); | |
| 3256 updateViewportListeners(INTERNAL); | |
| 3257 } | |
| 3258 | |
| 3259 // scroll horizontally | |
| 3260 | |
| 3261 if (endLine < startLine) { | |
| 3262 endLine += startLine; | |
| 3263 startLine= endLine - startLine; | |
| 3264 endLine -= startLine; | |
| 3265 } | |
| 3266 | |
| 3267 int startPixel= -1; | |
| 3268 int endPixel= -1; | |
| 3269 | |
| 3270 if (endLine > startLine) { | |
| 3271 // reveal the beginning of the range in the start line | |
| 3272 IRegion extent= getExtent(start, start); | |
| 3273 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3274 endPixel= startPixel; | |
| 3275 | |
| 3276 } else { | |
| 3277 IRegion extent= getExtent(start, end); | |
| 3278 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3279 endPixel= startPixel + extent.getLength(); | |
| 3280 } | |
| 3281 | |
| 3282 int visibleStart= fTextWidget.getHorizontalPixel(); | |
| 3283 int visibleEnd= visibleStart + fTextWidget.getClientArea().width; | |
| 3284 | |
| 3285 // scroll only if not yet visible | |
| 3286 if (startPixel < visibleStart || visibleEnd < endPixel) { | |
| 3287 | |
| 3288 // set buffer zone to 10 pixels | |
| 3289 int bufferZone= 10; | |
| 3290 | |
| 3291 int newOffset= visibleStart; | |
| 3292 | |
| 3293 int visibleWidth= visibleEnd - visibleStart; | |
| 3294 int selectionPixelWidth= endPixel - startPixel; | |
| 3295 | |
| 3296 if (startPixel < visibleStart) | |
| 3297 newOffset= startPixel; | |
| 3298 else if (selectionPixelWidth + bufferZone < visibleWidth) | |
| 3299 newOffset= endPixel + bufferZone - visibleWidth; | |
| 3300 else | |
| 3301 newOffset= startPixel; | |
| 3302 | |
| 134 | 3303 float index= (cast(float)newOffset) / (cast(float)getAverageCharWidth()); |
| 129 | 3304 |
| 3305 fTextWidget.setHorizontalIndex(Math.round(index)); | |
| 3306 } | |
| 3307 | |
| 3308 } | |
| 3309 } catch (BadLocationException e) { | |
| 3310 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_range")); //$NON-NLS-1$ | |
| 3311 } | |
| 3312 } | |
| 3313 | |
| 3314 /** | |
| 3315 * Returns the width of the text when being drawn into this viewer's widget. | |
| 3316 * | |
| 3317 * @param text the string to measure | |
| 3318 * @return the width of the presentation of the given string | |
| 3319 * @deprecated use <code>getWidthInPixels(int, int)</code> instead | |
| 3320 */ | |
| 3321 final protected int getWidthInPixels(String text) { | |
| 3322 GC gc= new GC(fTextWidget); | |
| 3323 gc.setFont(fTextWidget.getFont()); | |
| 3324 Point extent= gc.textExtent(text); | |
| 3325 gc.dispose(); | |
| 3326 return extent.x; | |
| 3327 } | |
| 3328 | |
| 3329 /** | |
| 3330 * Returns the region covered by the given start and end offset. | |
| 3331 * The result is relative to the upper left corner of the widget | |
| 3332 * client area. | |
| 3333 * | |
| 3334 * @param start offset relative to the start of this viewer's view port | |
| 3335 * 0 <= offset <= getCharCount() | |
| 3336 * @param end offset relative to the start of this viewer's view port | |
| 3337 * 0 <= offset <= getCharCount() | |
| 3338 * @return the region covered by start and end offset | |
| 3339 */ | |
| 3340 final protected IRegion getExtent(int start, int end) { | |
| 3341 if (end > 0 && start < end) { | |
| 3342 Rectangle bounds= fTextWidget.getTextBounds(start, end - 1); | |
| 3343 return new Region(bounds.x, bounds.width); | |
| 3344 } | |
|
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3345 |
| 129 | 3346 return new Region(fTextWidget.getLocationAtOffset(start).x, 0); |
| 3347 } | |
| 3348 | |
| 3349 /** | |
| 3350 * Returns the width of the representation of a text range in the | |
| 3351 * visible region of the viewer's document as drawn in this viewer's | |
| 3352 * widget. | |
| 3353 * | |
| 3354 * @param offset the offset of the text range in the visible region | |
| 3355 * @param length the length of the text range in the visible region | |
| 3356 * @return the width of the presentation of the specified text range | |
| 3357 * @since 2.0 | |
| 3358 */ | |
| 3359 final protected int getWidthInPixels(int offset, int length) { | |
| 3360 return getExtent(offset, offset + length).getLength(); | |
| 3361 } | |
| 3362 | |
| 3363 /** | |
| 3364 * Returns the average character width of this viewer's widget. | |
| 3365 * | |
| 3366 * @return the average character width of this viewer's widget | |
| 3367 */ | |
| 3368 final protected int getAverageCharWidth() { | |
| 3369 return JFaceTextUtil.getAverageCharWidth(getTextWidget()); | |
| 3370 } | |
| 3371 | |
| 3372 /* | |
| 3373 * @see Viewer#refresh() | |
| 3374 */ | |
| 3375 public void refresh() { | |
| 3376 setDocument(getDocument()); | |
| 3377 } | |
| 3378 | |
| 3379 //---- visible range support | |
| 3380 | |
| 3381 /** | |
| 3382 * Returns the slave document manager | |
| 3383 * | |
| 3384 * @return the slave document manager | |
| 3385 * @since 2.1 | |
| 3386 */ | |
| 3387 protected ISlaveDocumentManager getSlaveDocumentManager() { | |
| 3388 if (fSlaveDocumentManager is null) | |
| 3389 fSlaveDocumentManager= createSlaveDocumentManager(); | |
| 3390 return fSlaveDocumentManager; | |
| 3391 } | |
| 3392 | |
| 3393 /** | |
| 3394 * Creates a new slave document manager. This implementation always | |
| 3395 * returns a <code>ChildDocumentManager</code>. | |
| 3396 * | |
| 3397 * @return ISlaveDocumentManager | |
| 3398 * @since 2.1 | |
| 3399 */ | |
| 3400 protected ISlaveDocumentManager createSlaveDocumentManager() { | |
| 3401 return new ChildDocumentManager(); | |
| 3402 } | |
| 3403 | |
| 3404 /* | |
| 3405 * @see dwtx.jface.text.ITextViewer#invalidateTextPresentation() | |
| 3406 */ | |
| 3407 public final void invalidateTextPresentation() { | |
| 3408 if (fVisibleDocument !is null) { | |
| 3409 fWidgetCommand.event= null; | |
| 3410 fWidgetCommand.start= 0; | |
| 3411 fWidgetCommand.length= fVisibleDocument.getLength(); | |
| 3412 fWidgetCommand.text= fVisibleDocument.get(); | |
| 3413 updateTextListeners(fWidgetCommand); | |
| 3414 } | |
| 3415 } | |
| 3416 | |
| 3417 /** | |
| 3418 * Invalidates the given range of the text presentation. | |
| 3419 * | |
| 3420 * @param offset the offset of the range to be invalidated | |
| 3421 * @param length the length of the range to be invalidated | |
| 3422 * @since 2.1 | |
| 3423 */ | |
| 3424 public final void invalidateTextPresentation(int offset, int length) { | |
| 3425 if (fVisibleDocument !is null) { | |
| 3426 | |
| 3427 IRegion widgetRange= modelRange2WidgetRange(new Region(offset, length)); | |
| 3428 if (widgetRange !is null) { | |
| 3429 | |
| 3430 fWidgetCommand.event= null; | |
| 3431 fWidgetCommand.start= widgetRange.getOffset(); | |
| 3432 fWidgetCommand.length= widgetRange.getLength(); | |
| 3433 | |
| 3434 try { | |
| 3435 fWidgetCommand.text= fVisibleDocument.get(widgetRange.getOffset(), widgetRange.getLength()); | |
| 3436 updateTextListeners(fWidgetCommand); | |
| 3437 } catch (BadLocationException x) { | |
| 3438 // can not happen because of previous checking | |
| 3439 } | |
| 3440 } | |
| 3441 } | |
| 3442 } | |
| 3443 | |
| 3444 /** | |
| 3445 * Initializes the text widget with the visual document and | |
| 3446 * invalidates the overall presentation. | |
| 3447 */ | |
| 3448 private void initializeWidgetContents() { | |
| 3449 | |
| 3450 if (fTextWidget !is null && fVisibleDocument !is null) { | |
| 3451 | |
| 3452 // set widget content | |
| 3453 if (fDocumentAdapter is null) | |
| 3454 fDocumentAdapter= createDocumentAdapter(); | |
| 3455 | |
| 3456 fDocumentAdapter.setDocument(fVisibleDocument); | |
| 3457 fTextWidget.setContent(fDocumentAdapter); | |
| 3458 | |
| 3459 // invalidate presentation | |
| 3460 invalidateTextPresentation(); | |
| 3461 } | |
| 3462 } | |
| 3463 | |
| 3464 /** | |
| 3465 * Frees the given document if it is a slave document. | |
| 3466 * | |
| 3467 * @param slave the potential slave document | |
| 3468 * @since 3.0 | |
| 3469 */ | |
| 3470 protected void freeSlaveDocument(IDocument slave) { | |
| 3471 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3472 if (manager !is null && manager.isSlaveDocument(slave)) | |
| 3473 manager.freeSlaveDocument(slave); | |
| 3474 } | |
| 3475 | |
| 3476 /** | |
| 3477 * Sets this viewer's visible document. The visible document represents the | |
| 3478 * visible region of the viewer's input document. | |
| 3479 * | |
| 3480 * @param document the visible document | |
| 3481 */ | |
| 3482 protected void setVisibleDocument(IDocument document) { | |
| 3483 | |
|
140
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3484 if (fVisibleDocument is document && cast(ChildDocument)fVisibleDocument ) { |
| 129 | 3485 // optimization for new child documents |
| 3486 return; | |
| 3487 } | |
| 3488 | |
| 3489 if (fVisibleDocument !is null) { | |
| 3490 if (fVisibleDocumentListener !is null) | |
| 3491 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 3492 if (fVisibleDocument !is document) | |
| 3493 freeSlaveDocument(fVisibleDocument); | |
| 3494 } | |
| 3495 | |
| 3496 fVisibleDocument= document; | |
| 3497 initializeDocumentInformationMapping(fVisibleDocument); | |
| 3498 | |
| 3499 initializeWidgetContents(); | |
| 3500 | |
| 3501 fFindReplaceDocumentAdapter= null; | |
| 3502 if (fVisibleDocument !is null && fVisibleDocumentListener !is null) | |
| 3503 fVisibleDocument.addDocumentListener(fVisibleDocumentListener); | |
| 3504 } | |
| 3505 | |
| 3506 /** | |
| 3507 * Hook method called when the visible document is about to be changed. | |
| 3508 * <p> | |
| 3509 * Subclasses may override. | |
| 3510 * | |
| 3511 * @param event the document event | |
| 3512 * @since 3.0 | |
| 3513 */ | |
| 3514 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { | |
| 3515 } | |
| 3516 | |
| 3517 /** | |
| 3518 * Hook method called when the visible document has been changed. | |
| 3519 * <p> | |
| 3520 * Subclasses may override. | |
| 3521 * | |
| 3522 * @param event the document event | |
| 3523 * @since 3.0 | |
| 3524 */ | |
| 3525 protected void handleVisibleDocumentChanged(DocumentEvent event) { | |
| 3526 } | |
| 3527 | |
| 3528 /** | |
| 3529 * Initializes the document information mapping between the given slave document and | |
| 3530 * its master document. | |
| 3531 * | |
| 3532 * @param visibleDocument the slave document | |
| 3533 * @since 2.1 | |
| 3534 */ | |
| 3535 protected void initializeDocumentInformationMapping(IDocument visibleDocument) { | |
| 3536 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3537 fInformationMapping= manager is null ? null : manager.createMasterSlaveMapping(visibleDocument); | |
| 3538 } | |
| 3539 | |
| 3540 /** | |
| 3541 * Returns the viewer's visible document. | |
| 3542 * | |
| 3543 * @return the viewer's visible document | |
| 3544 */ | |
| 3545 protected IDocument getVisibleDocument() { | |
| 3546 return fVisibleDocument; | |
| 3547 } | |
| 3548 | |
| 3549 /** | |
| 3550 * Returns the offset of the visible region. | |
| 3551 * | |
| 3552 * @return the offset of the visible region | |
| 3553 */ | |
| 3554 protected int _getVisibleRegionOffset() { | |
| 3555 | |
| 3556 IDocument document= getVisibleDocument(); | |
| 138 | 3557 if ( cast(ChildDocument)document ) { |
| 134 | 3558 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3559 return cdoc.getParentDocumentRange().getOffset(); |
| 3560 } | |
| 3561 | |
| 3562 return 0; | |
| 3563 } | |
| 3564 | |
| 3565 /* | |
| 3566 * @see ITextViewer#getVisibleRegion() | |
| 3567 */ | |
| 3568 public IRegion getVisibleRegion() { | |
| 3569 | |
| 3570 IDocument document= getVisibleDocument(); | |
| 138 | 3571 if ( cast(ChildDocument)document ) { |
| 134 | 3572 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 3573 return new Region(p.getOffset(), p.getLength()); |
| 3574 } | |
| 3575 | |
| 3576 return new Region(0, document is null ? 0 : document.getLength()); | |
| 3577 } | |
| 3578 | |
| 3579 /* | |
| 3580 * @see ITextViewer#overlapsWithVisibleRegion(int, int) | |
| 3581 */ | |
| 3582 public bool overlapsWithVisibleRegion(int start, int length) { | |
| 3583 IDocument document= getVisibleDocument(); | |
| 138 | 3584 if ( cast(ChildDocument)document ) { |
| 134 | 3585 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3586 return cdoc.getParentDocumentRange().overlapsWith(start, length); |
| 3587 } else if (document !is null) { | |
| 3588 int size= document.getLength(); | |
| 3589 return (start >= 0 && length >= 0 && start + length <= size); | |
| 3590 } | |
| 3591 return false; | |
| 3592 } | |
| 3593 | |
| 3594 /* | |
| 3595 * @see ITextViewer#setVisibleRegion(int, int) | |
| 3596 */ | |
| 3597 public void setVisibleRegion(int start, int length) { | |
| 3598 | |
| 3599 IRegion region= getVisibleRegion(); | |
| 3600 if (start is region.getOffset() && length is region.getLength()) { | |
| 3601 // nothing to change | |
| 3602 return; | |
| 3603 } | |
| 3604 | |
| 3605 setRedraw(false); | |
| 3606 try { | |
| 3607 | |
| 3608 IDocument slaveDocument= createSlaveDocument(getVisibleDocument()); | |
| 3609 if (updateSlaveDocument(slaveDocument, start, length)) | |
| 3610 setVisibleDocument(slaveDocument); | |
| 3611 | |
| 3612 } catch (BadLocationException x) { | |
| 3613 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_2")); //$NON-NLS-1$ | |
| 3614 } finally { | |
| 3615 setRedraw(true); | |
| 3616 } | |
| 3617 } | |
| 3618 | |
| 3619 /* | |
| 3620 * @see ITextViewer#resetVisibleRegion() | |
| 3621 */ | |
| 3622 public void resetVisibleRegion() { | |
| 3623 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3624 if (manager !is null) { | |
| 3625 IDocument slave= getVisibleDocument(); | |
| 3626 IDocument master= manager.getMasterDocument(slave); | |
| 3627 if (master !is null) { | |
| 3628 setVisibleDocument(master); | |
| 3629 manager.freeSlaveDocument(slave); | |
| 3630 } | |
| 3631 } | |
| 3632 } | |
| 3633 | |
| 3634 | |
| 3635 //-------------------------------------- | |
| 3636 | |
| 3637 /* | |
| 3638 * @see ITextViewer#setTextDoubleClickStrategy(ITextDoubleClickStrategy, String) | |
| 3639 */ | |
| 3640 public void setTextDoubleClickStrategy(ITextDoubleClickStrategy strategy, String contentType) { | |
| 3641 | |
| 3642 if (strategy !is null) { | |
| 3643 if (fDoubleClickStrategies is null) | |
| 3644 fDoubleClickStrategies= new HashMap(); | |
| 3645 fDoubleClickStrategies.put(contentType, strategy); | |
| 3646 } else if (fDoubleClickStrategies !is null) | |
| 3647 fDoubleClickStrategies.remove(contentType); | |
| 3648 } | |
| 3649 | |
| 3650 /** | |
| 3651 * Selects from the given map the one which is registered under | |
| 3652 * the content type of the partition in which the given offset is located. | |
| 3653 * | |
| 3654 * @param plugins the map from which to choose | |
| 3655 * @param offset the offset for which to find the plug-in | |
| 3656 * @return the plug-in registered under the offset's content type | |
| 3657 */ | |
| 3658 protected Object selectContentTypePlugin(int offset, Map plugins) { | |
| 3659 try { | |
| 3660 return selectContentTypePlugin(TextUtilities.getContentType(getDocument(), getDocumentPartitioning(), offset, true), plugins); | |
| 3661 } catch (BadLocationException x) { | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3662 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3663 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 3664 } |
| 3665 return null; | |
| 3666 } | |
| 3667 | |
| 3668 /** | |
| 3669 * Selects from the given <code>plug-ins</code> this one which is | |
| 3670 * registered for the given content <code>type</code>. | |
| 3671 * | |
| 3672 * @param type the type to be used as lookup key | |
| 3673 * @param plugins the table to be searched | |
| 3674 * @return the plug-in in the map for the given content type | |
| 3675 */ | |
| 3676 private Object selectContentTypePlugin(String type, Map plugins) { | |
| 3677 | |
| 3678 if (plugins is null) | |
| 3679 return null; | |
| 3680 | |
| 3681 return plugins.get(type); | |
| 3682 } | |
| 3683 | |
| 3684 /** | |
| 3685 * Hook called on receipt of a <code>VerifyEvent</code>. The event has | |
| 3686 * been translated into a <code>DocumentCommand</code> which can now be | |
| 3687 * manipulated by interested parties. By default, the hook forwards the command | |
| 3688 * to the installed instances of <code>IAutoEditStrategy</code>. | |
| 3689 * | |
| 3690 * @param command the document command representing the verify event | |
| 3691 */ | |
| 3692 protected void customizeDocumentCommand(DocumentCommand command) { | |
| 3693 if (isIgnoringAutoEditStrategies()) | |
| 3694 return; | |
|
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parents:
138
diff
changeset
|
3695 |
| 129 | 3696 IDocument document= getDocument(); |
|
140
26688fec6d23
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parents:
138
diff
changeset
|
3697 |
| 129 | 3698 if (fTabsToSpacesConverter !is null) |
| 3699 fTabsToSpacesConverter.customizeDocumentCommand(document, command); | |
| 3700 | |
| 134 | 3701 List strategies= cast(List) selectContentTypePlugin(command.offset, fAutoIndentStrategies); |
| 129 | 3702 if (strategies is null) |
| 3703 return; | |
| 3704 | |
| 3705 switch (strategies.size()) { | |
| 3706 // optimization | |
| 3707 case 0: | |
| 3708 break; | |
| 3709 | |
| 3710 case 1: | |
| 134 | 3711 (cast(IAutoEditStrategy) strategies.iterator().next()).customizeDocumentCommand(document, command); |
| 129 | 3712 break; |
| 3713 | |
| 3714 // make iterator robust against adding/removing strategies from within strategies | |
| 3715 default: | |
| 3716 strategies= new ArrayList(strategies); | |
| 3717 for (final Iterator iterator= strategies.iterator(); iterator.hasNext(); ) | |
| 134 | 3718 (cast(IAutoEditStrategy) iterator.next()).customizeDocumentCommand(document, command); |
| 129 | 3719 |
| 3720 break; | |
| 3721 } | |
| 3722 } | |
| 3723 | |
| 3724 /** | |
| 3725 * Handles the verify event issued by the viewer's text widget. | |
| 3726 * | |
| 3727 * @see VerifyListener#verifyText(VerifyEvent) | |
| 3728 * @param e the verify event | |
| 3729 */ | |
| 3730 protected void handleVerifyEvent(VerifyEvent e) { | |
| 3731 | |
| 3732 if (fEventConsumer !is null) { | |
| 3733 fEventConsumer.processEvent(e); | |
| 3734 if (!e.doit) | |
| 3735 return; | |
| 3736 } | |
| 3737 | |
| 3738 IRegion modelRange= event2ModelRange(e); | |
| 3739 fDocumentCommand.setEvent(e, modelRange); | |
| 3740 customizeDocumentCommand(fDocumentCommand); | |
| 3741 if (!fDocumentCommand.fillEvent(e, modelRange)) { | |
| 3742 | |
| 3743 bool compoundChange= fDocumentCommand.getCommandCount() > 1; | |
| 3744 try { | |
| 3745 | |
| 3746 fVerifyListener.forward(false); | |
| 3747 | |
| 3748 if (compoundChange && fUndoManager !is null) | |
| 3749 fUndoManager.beginCompoundChange(); | |
| 3750 | |
| 3751 fDocumentCommand.execute(getDocument()); | |
| 3752 | |
| 3753 if (fTextWidget !is null) { | |
| 3754 int documentCaret= fDocumentCommand.caretOffset; | |
| 3755 if (documentCaret is -1) { | |
| 3756 // old behavior of document command | |
| 3757 documentCaret= fDocumentCommand.offset + (fDocumentCommand.text is null ? 0 : fDocumentCommand.text.length()); | |
| 3758 } | |
| 3759 | |
| 3760 int widgetCaret= modelOffset2WidgetOffset(documentCaret); | |
| 3761 if (widgetCaret is -1) { | |
| 3762 // try to move it to the closest spot | |
| 3763 IRegion region= getModelCoverage(); | |
| 3764 if (region !is null) { | |
| 3765 if (documentCaret <= region.getOffset()) | |
| 3766 widgetCaret= 0; | |
| 3767 else if (documentCaret >= region.getOffset() + region.getLength()) | |
| 3768 widgetCaret= getVisibleRegion().getLength(); | |
| 3769 } | |
| 3770 } | |
| 3771 | |
| 3772 if (widgetCaret !is -1) { | |
| 3773 // there is a valid widget caret | |
| 3774 fTextWidget.setCaretOffset(widgetCaret); | |
| 3775 } | |
| 3776 | |
| 3777 fTextWidget.showSelection(); | |
| 3778 } | |
| 3779 } catch (BadLocationException x) { | |
| 3780 | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3781 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3782 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.verifyText")); //$NON-NLS-1$ |
| 129 | 3783 |
| 3784 } finally { | |
| 3785 | |
| 3786 if (compoundChange && fUndoManager !is null) | |
| 3787 fUndoManager.endCompoundChange(); | |
| 3788 | |
| 3789 fVerifyListener.forward(true); | |
| 3790 | |
| 3791 } | |
| 3792 } | |
| 3793 } | |
| 3794 | |
| 3795 //---- text manipulation | |
| 3796 | |
| 3797 /** | |
| 3798 * Returns whether the marked region of this viewer is empty. | |
| 3799 * | |
| 3800 * @return <code>true</code> if the marked region of this viewer is empty, otherwise <code>false</code> | |
| 3801 * @since 2.0 | |
| 3802 */ | |
| 3803 private bool isMarkedRegionEmpty() { | |
| 3804 return | |
| 3805 fTextWidget is null || | |
| 3806 fMarkPosition is null || | |
| 3807 fMarkPosition.isDeleted() || | |
| 3808 modelRange2WidgetRange(fMarkPosition) is null; | |
| 3809 } | |
| 3810 | |
| 3811 /* | |
| 3812 * @see ITextViewer#canDoOperation(int) | |
| 3813 */ | |
| 3814 public bool canDoOperation(int operation) { | |
| 3815 | |
| 3816 if (fTextWidget is null || !redraws()) | |
| 3817 return false; | |
| 3818 | |
| 3819 switch (operation) { | |
| 3820 case CUT: | |
| 3821 return isEditable() &&(fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty()); | |
| 3822 case COPY: | |
| 3823 return fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty(); | |
| 3824 case DELETE: | |
| 3825 case PASTE: | |
| 3826 return isEditable(); | |
| 3827 case SELECT_ALL: | |
| 3828 return true; | |
| 3829 case SHIFT_LEFT: | |
| 3830 case SHIFT_RIGHT: | |
| 3831 return isEditable() && fIndentChars !is null && areMultipleLinesSelected(); | |
| 3832 case PREFIX: | |
| 3833 case STRIP_PREFIX: | |
| 3834 return isEditable() && fDefaultPrefixChars !is null; | |
| 3835 case UNDO: | |
| 3836 return fUndoManager !is null && fUndoManager.undoable(); | |
| 3837 case REDO: | |
| 3838 return fUndoManager !is null && fUndoManager.redoable(); | |
| 3839 case PRINT: | |
| 3840 return isPrintable(); | |
| 3841 } | |
| 3842 | |
| 3843 return false; | |
| 3844 } | |
| 3845 | |
| 3846 /* | |
| 3847 * @see ITextViewer#doOperation(int) | |
| 3848 */ | |
| 3849 public void doOperation(int operation) { | |
| 3850 | |
| 3851 if (fTextWidget is null || !redraws()) | |
| 3852 return; | |
| 3853 | |
| 3854 Point selection= null; | |
| 3855 | |
| 3856 switch (operation) { | |
| 3857 | |
| 3858 case UNDO: | |
| 3859 if (fUndoManager !is null) { | |
| 3860 ignoreAutoEditStrategies(true); | |
| 3861 fUndoManager.undo(); | |
| 3862 ignoreAutoEditStrategies(false); | |
| 3863 } | |
| 3864 break; | |
| 3865 case REDO: | |
| 3866 if (fUndoManager !is null) { | |
| 3867 ignoreAutoEditStrategies(true); | |
| 3868 fUndoManager.redo(); | |
| 3869 ignoreAutoEditStrategies(false); | |
| 3870 } | |
| 3871 break; | |
| 3872 case CUT: | |
| 3873 if (fTextWidget.getSelectionCount() is 0) | |
| 3874 copyMarkedRegion(true); | |
| 3875 else | |
| 3876 fTextWidget.cut(); | |
| 3877 | |
| 3878 selection= fTextWidget.getSelectionRange(); | |
| 3879 fireSelectionChanged(selection.x, selection.y); | |
| 3880 | |
| 3881 break; | |
| 3882 case COPY: | |
| 3883 if (fTextWidget.getSelectionCount() is 0) | |
| 3884 copyMarkedRegion(false); | |
| 3885 else | |
| 3886 fTextWidget.copy(); | |
| 3887 break; | |
| 3888 case PASTE: | |
| 3889 // ignoreAutoEditStrategies(true); | |
| 3890 fTextWidget.paste(); | |
| 3891 selection= fTextWidget.getSelectionRange(); | |
| 3892 fireSelectionChanged(selection.x, selection.y); | |
| 3893 // ignoreAutoEditStrategies(false); | |
| 3894 break; | |
| 3895 case DELETE: | |
| 3896 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 3897 selection= fTextWidget.getSelectionRange(); | |
| 3898 fireSelectionChanged(selection.x, selection.y); | |
| 3899 break; | |
| 3900 case SELECT_ALL: { | |
| 3901 if (getDocument() !is null) | |
| 3902 setSelectedRange(0, getDocument().getLength()); | |
| 3903 break; | |
| 3904 } | |
| 3905 case SHIFT_RIGHT: | |
| 3906 shift(false, true, false); | |
| 3907 break; | |
| 3908 case SHIFT_LEFT: | |
| 3909 shift(false, false, false); | |
| 3910 break; | |
| 3911 case PREFIX: | |
| 3912 shift(true, true, true); | |
| 3913 break; | |
| 3914 case STRIP_PREFIX: | |
| 3915 shift(true, false, true); | |
| 3916 break; | |
| 3917 case PRINT: | |
| 3918 print(); | |
| 3919 break; | |
| 3920 } | |
| 3921 } | |
| 3922 | |
| 3923 /** | |
| 3924 * Tells this viewer whether the registered auto edit strategies should be ignored. | |
| 3925 * | |
| 3926 * @param ignore <code>true</code> if the strategies should be ignored. | |
| 3927 * @since 2.1 | |
| 3928 */ | |
| 3929 protected void ignoreAutoEditStrategies(bool ignore) { | |
| 3930 if (fIgnoreAutoIndent is ignore) | |
| 3931 return; | |
| 3932 | |
| 3933 fIgnoreAutoIndent= ignore; | |
| 3934 | |
| 3935 IDocument document= getDocument(); | |
| 138 | 3936 if ( cast(IDocumentExtension2)document ) { |
| 134 | 3937 IDocumentExtension2 extension= cast(IDocumentExtension2) document; |
| 129 | 3938 if (ignore) |
| 3939 extension.ignorePostNotificationReplaces(); | |
| 3940 else | |
| 3941 extension.acceptPostNotificationReplaces(); | |
| 3942 } | |
| 3943 } | |
| 3944 | |
| 3945 /** | |
| 3946 * Returns whether this viewer ignores the registered auto edit strategies. | |
| 3947 * | |
| 3948 * @return <code>true</code> if the strategies are ignored | |
| 3949 * @since 2.1 | |
| 3950 */ | |
| 3951 protected bool isIgnoringAutoEditStrategies() { | |
| 3952 return fIgnoreAutoIndent; | |
| 3953 } | |
| 3954 | |
| 3955 /* | |
| 3956 * @see ITextOperationTargetExtension#enableOperation(int, bool) | |
| 3957 * @since 2.0 | |
| 3958 */ | |
| 3959 public void enableOperation(int operation, bool enable) { | |
| 3960 /* | |
| 3961 * NO-OP by default. | |
| 3962 * Will be changed to regularly disable the known operations. | |
| 3963 */ | |
| 3964 } | |
| 3965 | |
| 3966 /** | |
| 3967 * Copies/cuts the marked region. | |
| 3968 * | |
| 3969 * @param delete <code>true</code> if the region should be deleted rather than copied. | |
| 3970 * @since 2.0 | |
| 3971 */ | |
|
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|
3972 protected void copyMarkedRegion(bool delete_) { |
| 129 | 3973 |
| 3974 if (fTextWidget is null) | |
| 3975 return; | |
| 3976 | |
| 3977 if (fMarkPosition is null || fMarkPosition.isDeleted() || modelRange2WidgetRange(fMarkPosition) is null) | |
| 3978 return; | |
| 3979 | |
| 3980 int widgetMarkOffset= modelOffset2WidgetOffset(fMarkPosition.offset); | |
| 3981 Point selection= fTextWidget.getSelection(); | |
| 3982 if (selection.x <= widgetMarkOffset) | |
| 3983 fTextWidget.setSelection(selection.x, widgetMarkOffset); | |
| 3984 else | |
| 3985 fTextWidget.setSelection(widgetMarkOffset, selection.x); | |
| 3986 | |
|
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parents:
138
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changeset
|
3987 if (delete_) { |
| 129 | 3988 fTextWidget.cut(); |
| 3989 } else { | |
| 3990 fTextWidget.copy(); | |
| 3991 fTextWidget.setSelection(selection.x); // restore old cursor position | |
| 3992 } | |
| 3993 } | |
| 3994 | |
| 3995 /** | |
| 3996 * Deletes the current selection. If the selection has the length 0 | |
| 3997 * the selection is automatically extended to the right - either by 1 | |
| 3998 * or by the length of line delimiter if at the end of a line. | |
| 3999 * | |
| 4000 * @deprecated use <code>StyledText.invokeAction</code> instead | |
| 4001 */ | |
| 4002 protected void deleteText() { | |
| 4003 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 4004 } | |
| 4005 | |
| 4006 /** | |
| 4007 * A block is selected if the character preceding the start of the | |
| 4008 * selection is a new line character. | |
| 4009 * | |
| 4010 * @return <code>true</code> if a block is selected | |
| 4011 */ | |
| 4012 protected bool isBlockSelected() { | |
| 4013 | |
| 4014 Point s= getSelectedRange(); | |
| 4015 if (s.y is 0) | |
| 4016 return false; | |
| 4017 | |
| 4018 try { | |
| 4019 | |
| 4020 IDocument document= getDocument(); | |
| 4021 int line= document.getLineOfOffset(s.x); | |
| 4022 int start= document.getLineOffset(line); | |
| 4023 return (s.x is start); | |
| 4024 | |
| 4025 } catch (BadLocationException x) { | |
| 4026 } | |
| 4027 | |
| 4028 return false; | |
| 4029 } | |
| 4030 | |
| 4031 /** | |
| 4032 * Returns <code>true</code> if one line is completely selected or if multiple lines are selected. | |
| 4033 * Being completely selected means that all characters except the new line characters are | |
| 4034 * selected. | |
| 4035 * | |
| 4036 * @return <code>true</code> if one or multiple lines are selected | |
| 4037 * @since 2.0 | |
| 4038 */ | |
| 4039 protected bool areMultipleLinesSelected() { | |
| 4040 Point s= getSelectedRange(); | |
| 4041 if (s.y is 0) | |
| 4042 return false; | |
| 4043 | |
| 4044 try { | |
| 4045 | |
| 4046 IDocument document= getDocument(); | |
| 4047 int startLine= document.getLineOfOffset(s.x); | |
| 4048 int endLine= document.getLineOfOffset(s.x + s.y); | |
| 4049 IRegion line= document.getLineInformation(startLine); | |
| 4050 return startLine !is endLine || (s.x is line.getOffset() && s.y is line.getLength()); | |
| 4051 | |
| 4052 } catch (BadLocationException x) { | |
| 4053 } | |
| 4054 | |
| 4055 return false; | |
| 4056 } | |
| 4057 | |
| 4058 /** | |
| 4059 * Returns the index of the first line whose start offset is in the given text range. | |
| 4060 * | |
| 4061 * @param region the text range in characters where to find the line | |
| 4062 * @return the first line whose start index is in the given range, -1 if there is no such line | |
| 4063 */ | |
| 4064 private int getFirstCompleteLineOfRegion(IRegion region) { | |
| 4065 | |
| 4066 try { | |
| 4067 | |
| 4068 IDocument d= getDocument(); | |
| 4069 | |
| 4070 int startLine= d.getLineOfOffset(region.getOffset()); | |
| 4071 | |
| 4072 int offset= d.getLineOffset(startLine); | |
| 4073 if (offset >= region.getOffset()) | |
| 4074 return startLine; | |
| 4075 | |
| 4076 offset= d.getLineOffset(startLine + 1); | |
| 4077 return (offset > region.getOffset() + region.getLength() ? -1 : startLine + 1); | |
| 4078 | |
| 4079 } catch (BadLocationException x) { | |
|
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parents:
138
diff
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|
4080 if (TRACE_ERRORS) |
|
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parents:
138
diff
changeset
|
4081 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getFirstCompleteLineOfRegion")); //$NON-NLS-1$ |
| 129 | 4082 } |
| 4083 | |
| 4084 return -1; | |
| 4085 } | |
| 4086 | |
| 4087 | |
| 4088 /** | |
| 4089 * Creates a region describing the text block (something that starts at | |
| 4090 * the beginning of a line) completely containing the current selection. | |
| 4091 * | |
| 4092 * @param selection the selection to use | |
| 4093 * @return the region describing the text block comprising the given selection | |
| 4094 * @since 2.0 | |
| 4095 */ | |
| 4096 private IRegion getTextBlockFromSelection(Point selection) { | |
| 4097 | |
| 4098 try { | |
| 4099 IDocument document= getDocument(); | |
| 4100 IRegion line= document.getLineInformationOfOffset(selection.x); | |
| 4101 int length= selection.y is 0 ? line.getLength() : selection.y + (selection.x - line.getOffset()); | |
| 4102 return new Region(line.getOffset(), length); | |
| 4103 | |
| 4104 } catch (BadLocationException x) { | |
| 4105 } | |
| 4106 | |
| 4107 return null; | |
| 4108 } | |
| 4109 | |
| 4110 /** | |
| 4111 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4112 * The prefixes must start at the beginning of the line. | |
| 4113 * | |
| 4114 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4115 * @param right says whether to shift to the right or the left | |
| 4116 * | |
| 4117 * @deprecated use shift(bool, bool, bool) instead | |
| 4118 */ | |
| 4119 protected void shift(bool useDefaultPrefixes, bool right) { | |
| 4120 shift(useDefaultPrefixes, right, false); | |
| 4121 } | |
| 4122 | |
| 4123 /** | |
| 4124 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4125 * If white space should be ignored the prefix characters must not be at the beginning of | |
| 4126 * the line when shifting to the left. There may be whitespace in front of the prefixes. | |
| 4127 * | |
| 4128 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4129 * @param right says whether to shift to the right or the left | |
| 4130 * @param ignoreWhitespace says whether whitespace in front of prefixes is allowed | |
| 4131 * @since 2.0 | |
| 4132 */ | |
| 4133 protected void shift(bool useDefaultPrefixes, bool right, bool ignoreWhitespace) { | |
| 4134 if (fUndoManager !is null) | |
| 4135 fUndoManager.beginCompoundChange(); | |
|
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parents:
138
diff
changeset
|
4136 |
| 129 | 4137 IDocument d= getDocument(); |
| 4138 Map partitioners= null; | |
| 4139 DocumentRewriteSession rewriteSession= null; | |
| 4140 try { | |
| 4141 Point selection= getSelectedRange(); | |
| 4142 IRegion block= getTextBlockFromSelection(selection); | |
| 4143 ITypedRegion[] regions= TextUtilities.computePartitioning(d, getDocumentPartitioning(), block.getOffset(), block.getLength(), false); | |
| 4144 | |
| 4145 int lineCount= 0; | |
| 4146 int[] lines= new int[regions.length * 2]; // [start line, end line, start line, end line, ...] | |
| 4147 for (int i= 0, j= 0; i < regions.length; i++, j+= 2) { | |
| 4148 // start line of region | |
| 4149 lines[j]= getFirstCompleteLineOfRegion(regions[i]); | |
| 4150 // end line of region | |
| 4151 int length= regions[i].getLength(); | |
| 4152 int offset= regions[i].getOffset() + length; | |
| 4153 if (length > 0) | |
| 4154 offset--; | |
| 4155 lines[j + 1]= (lines[j] is -1 ? -1 : d.getLineOfOffset(offset)); | |
| 4156 lineCount += lines[j + 1] - lines[j] + 1; | |
| 4157 } | |
| 4158 | |
| 138 | 4159 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4160 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4161 rewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 4162 } else { | |
| 4163 setRedraw(false); | |
| 4164 startSequentialRewriteMode(true); | |
| 4165 } | |
| 4166 if (lineCount >= 20) | |
| 4167 partitioners= TextUtilities.removeDocumentPartitioners(d); | |
| 4168 | |
| 4169 // Perform the shift operation. | |
| 4170 Map map= (useDefaultPrefixes ? fDefaultPrefixChars : fIndentChars); | |
| 4171 for (int i= 0, j= 0; i < regions.length; i++, j += 2) { | |
| 156 | 4172 String[] prefixes= stringArrayFromObject(selectContentTypePlugin(regions[i].getType(), map)); |
| 129 | 4173 if (prefixes !is null && prefixes.length > 0 && lines[j] >= 0 && lines[j + 1] >= 0) { |
| 4174 if (right) | |
| 4175 shiftRight(lines[j], lines[j + 1], prefixes[0]); | |
| 4176 else | |
| 4177 shiftLeft(lines[j], lines[j + 1], prefixes, ignoreWhitespace); | |
| 4178 } | |
| 4179 } | |
| 4180 | |
| 4181 } catch (BadLocationException x) { | |
|
140
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parents:
138
diff
changeset
|
4182 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
4183 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.shift_1")); //$NON-NLS-1$ |
| 129 | 4184 |
| 4185 } finally { | |
| 4186 | |
| 4187 if (partitioners !is null) | |
| 4188 TextUtilities.addDocumentPartitioners(d, partitioners); | |
|
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parents:
138
diff
changeset
|
4189 |
| 138 | 4190 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4191 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4192 extension.stopRewriteSession(rewriteSession); |
| 4193 } else { | |
| 4194 stopSequentialRewriteMode(); | |
| 4195 setRedraw(true); | |
| 4196 } | |
| 4197 | |
| 4198 if (fUndoManager !is null) | |
| 4199 fUndoManager.endCompoundChange(); | |
| 4200 } | |
| 4201 } | |
| 4202 | |
| 4203 /** | |
| 4204 * Shifts the specified lines to the right inserting the given prefix | |
| 4205 * at the beginning of each line | |
| 4206 * | |
| 4207 * @param prefix the prefix to be inserted | |
| 4208 * @param startLine the first line to shift | |
| 4209 * @param endLine the last line to shift | |
| 4210 * @since 2.0 | |
| 4211 */ | |
| 4212 private void shiftRight(int startLine, int endLine, String prefix) { | |
| 4213 | |
| 4214 try { | |
| 4215 | |
| 4216 IDocument d= getDocument(); | |
| 4217 while (startLine <= endLine) { | |
| 4218 d.replace(d.getLineOffset(startLine++), 0, prefix); | |
| 4219 } | |
| 4220 | |
| 4221 } catch (BadLocationException x) { | |
|
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parents:
138
diff
changeset
|
4222 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
4223 System.out_.println("TextViewer.shiftRight: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4224 } |
| 4225 } | |
| 4226 | |
| 4227 /** | |
| 4228 * Shifts the specified lines to the right or to the left. On shifting to the right | |
| 4229 * it insert <code>prefixes[0]</code> at the beginning of each line. On shifting to the | |
| 4230 * left it tests whether each of the specified lines starts with one of the specified | |
| 4231 * prefixes and if so, removes the prefix. | |
| 4232 * | |
| 4233 * @param startLine the first line to shift | |
| 4234 * @param endLine the last line to shift | |
| 4235 * @param prefixes the prefixes to be used for shifting | |
| 4236 * @param ignoreWhitespace <code>true</code> if whitespace should be ignored, <code>false</code> otherwise | |
| 4237 * @since 2.0 | |
| 4238 */ | |
| 4239 private void shiftLeft(int startLine, int endLine, String[] prefixes, bool ignoreWhitespace) { | |
| 4240 | |
| 4241 IDocument d= getDocument(); | |
| 4242 | |
| 4243 try { | |
| 4244 | |
| 4245 IRegion[] occurrences= new IRegion[endLine - startLine + 1]; | |
| 4246 | |
| 4247 // find all the first occurrences of prefix in the given lines | |
| 4248 for (int i= 0; i < occurrences.length; i++) { | |
| 4249 | |
| 4250 IRegion line= d.getLineInformation(startLine + i); | |
| 4251 String text= d.get(line.getOffset(), line.getLength()); | |
| 4252 | |
| 4253 int index= -1; | |
| 4254 int[] found= TextUtilities.indexOf(prefixes, text, 0); | |
| 4255 if (found[0] !is -1) { | |
| 4256 if (ignoreWhitespace) { | |
| 4257 String s= d.get(line.getOffset(), found[0]); | |
| 4258 s= s.trim(); | |
| 4259 if (s.length() is 0) | |
| 4260 index= line.getOffset() + found[0]; | |
| 4261 } else if (found[0] is 0) | |
| 4262 index= line.getOffset(); | |
| 4263 } | |
| 4264 | |
| 4265 if (index > -1) { | |
| 4266 // remember where prefix is in line, so that it can be removed | |
| 4267 int length= prefixes[found[1]].length(); | |
| 4268 if (length is 0 && !ignoreWhitespace && line.getLength() > 0) { | |
| 4269 // found a non-empty line which cannot be shifted | |
| 4270 return; | |
| 4271 } | |
| 4272 occurrences[i]= new Region(index, length); | |
| 4273 } else { | |
| 4274 // found a line which cannot be shifted | |
| 4275 return; | |
| 4276 } | |
| 4277 } | |
| 4278 | |
| 4279 // OK - change the document | |
| 4280 int decrement= 0; | |
| 4281 for (int i= 0; i < occurrences.length; i++) { | |
| 4282 IRegion r= occurrences[i]; | |
| 4283 d.replace(r.getOffset() - decrement, r.getLength(), ""); //$NON-NLS-1$ | |
| 4284 decrement += r.getLength(); | |
| 4285 } | |
| 4286 | |
| 4287 } catch (BadLocationException x) { | |
|
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4288 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
4289 System.out_.println("TextViewer.shiftLeft: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4290 } |
| 4291 } | |
| 4292 | |
| 4293 /** | |
| 4294 * Returns whether the shown text can be printed. | |
| 4295 * | |
| 4296 * @return the viewer's printable mode | |
| 4297 */ | |
| 4298 protected bool isPrintable() { | |
| 4299 /* | |
| 4300 * 1GK7Q10: ITPUI:WIN98 - internal error after invoking print at editor view | |
| 4301 * Changed from returning true to testing the length of the printer queue | |
| 4302 */ | |
| 4303 PrinterData[] printerList= Printer.getPrinterList(); | |
| 4304 return (printerList !is null && printerList.length > 0); | |
| 4305 } | |
| 4306 | |
| 4307 /** | |
| 4308 * {@inheritDoc} | |
|
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changeset
|
4309 * |
| 129 | 4310 * @since 3.4 |
| 4311 */ | |
| 4312 public void print(StyledTextPrintOptions options) { | |
| 4313 final PrintDialog dialog= new PrintDialog(fTextWidget.getShell(), DWT.PRIMARY_MODAL); | |
| 4314 final PrinterData data= dialog.open(); | |
| 4315 | |
| 4316 if (data !is null) { | |
| 4317 final Printer printer= new Printer(data); | |
| 4318 final Runnable styledTextPrinter= fTextWidget.print(printer, options); | |
| 4319 | |
|
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|
4320 void threadrun() { |
|
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|
4321 styledTextPrinter.run(); |
|
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|
4322 printer.dispose(); |
|
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|
4323 } |
|
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|
4324 Thread printingThread= new Thread( &threadrun ); |
|
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|
4325 printingThread.name = "Printing"; //$NON-NLS-1$ |
| 129 | 4326 printingThread.start(); |
| 4327 } | |
| 4328 } | |
| 4329 | |
| 4330 /** | |
| 4331 * Brings up a print dialog and calls <code>printContents(Printer)</code> | |
| 4332 * which performs the actual print. | |
| 4333 */ | |
| 4334 protected void print() { | |
| 4335 StyledTextPrintOptions options= new StyledTextPrintOptions(); | |
| 4336 options.printTextFontStyle= true; | |
| 4337 options.printTextForeground= true; | |
| 4338 print(options); | |
| 4339 } | |
| 4340 | |
| 4341 //------ find support | |
| 4342 | |
| 4343 /** | |
| 4344 * Adheres to the contract of {@link IFindReplaceTarget#canPerformFind()}. | |
| 4345 * | |
| 4346 * @return <code>true</code> if find can be performed, <code>false</code> otherwise | |
| 4347 */ | |
| 4348 protected bool canPerformFind() { | |
| 4349 IDocument d= getVisibleDocument(); | |
| 4350 return (fTextWidget !is null && d !is null && d.getLength() > 0); | |
| 4351 } | |
| 4352 | |
| 4353 /** | |
| 4354 * Adheres to the contract of {@link IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool)}. | |
| 4355 * | |
| 4356 * @param startPosition the start position | |
| 4357 * @param findString the find string specification | |
| 4358 * @param forwardSearch the search direction | |
| 4359 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4360 * @param wholeWord <code>true</code> if match must be whole words, <code>false</code> otherwise | |
| 4361 * @return the model offset of the first match | |
| 4362 * @deprecated as of 3.0 use {@link #findAndSelect(int, String, bool, bool, bool, bool)} | |
| 4363 */ | |
| 4364 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord) { | |
| 4365 try { | |
| 4366 return findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, false); | |
| 4367 } catch (IllegalStateException ex) { | |
| 4368 return -1; | |
| 4369 } catch (PatternSyntaxException ex) { | |
| 4370 return -1; | |
| 4371 } | |
| 4372 } | |
| 4373 | |
| 4374 /** | |
| 4375 * Adheres to the contract of | |
| 4376 * {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4377 * | |
| 4378 * @param startPosition the start position | |
| 4379 * @param findString the find string specification | |
| 4380 * @param forwardSearch the search direction | |
| 4381 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4382 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4383 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4384 * @return the model offset of the first match | |
| 4385 * | |
| 4386 */ | |
| 4387 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 4388 if (fTextWidget is null) | |
| 4389 return -1; | |
| 4390 | |
| 4391 try { | |
| 4392 | |
| 4393 int widgetOffset= (startPosition is -1 ? startPosition : modelOffset2WidgetOffset(startPosition)); | |
| 4394 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4395 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4396 if (matchRegion !is null) { | |
| 4397 int widgetPos= matchRegion.getOffset(); | |
| 4398 int length= matchRegion.getLength(); | |
| 4399 | |
| 4400 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4401 char startChar= adapter.charAt(widgetPos); | |
| 4402 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4403 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 4404 bool redraws= redraws(); | |
| 4405 if (borderHasLineDelimiter && redraws) | |
| 4406 setRedraw(false); | |
| 4407 | |
| 4408 if (redraws()) { | |
| 4409 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4410 internalRevealRange(widgetPos, widgetPos + length); | |
| 4411 selectionChanged(widgetPos, length); | |
| 4412 } else { | |
| 4413 setSelectedRange(widgetOffset2ModelOffset(widgetPos), length); | |
| 4414 if (redraws) | |
| 4415 setRedraw(true); | |
| 4416 } | |
| 4417 | |
| 4418 return widgetOffset2ModelOffset(widgetPos); | |
| 4419 } | |
| 4420 | |
| 4421 } catch (BadLocationException x) { | |
|
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|
4422 if (TRACE_ERRORS) |
|
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|
4423 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4424 } |
| 4425 | |
| 4426 return -1; | |
| 4427 } | |
| 4428 | |
| 4429 /** | |
| 4430 * Adheres to the contract of {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4431 * | |
| 4432 * @param startPosition the start position | |
| 4433 * @param findString the find string specification | |
| 4434 * @param forwardSearch the search direction | |
| 4435 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4436 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4437 * @param rangeOffset the search scope offset | |
| 4438 * @param rangeLength the search scope length | |
| 4439 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4440 * @return the model offset of the first match | |
| 4441 * @since 3.0 | |
| 4442 */ | |
| 4443 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) { | |
| 4444 if (fTextWidget is null) | |
| 4445 return -1; | |
| 4446 | |
| 4447 try { | |
| 4448 | |
| 4449 int modelOffset; | |
| 4450 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) { | |
| 4451 modelOffset= rangeOffset; | |
| 4452 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) { | |
| 4453 modelOffset= rangeOffset + rangeLength; | |
| 4454 } else { | |
| 4455 modelOffset= startPosition; | |
| 4456 } | |
| 4457 | |
| 4458 int widgetOffset= modelOffset2WidgetOffset(modelOffset); | |
| 4459 if (widgetOffset is -1) | |
| 4460 return -1; | |
| 4461 | |
| 4462 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4463 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4464 int widgetPos= -1; | |
| 4465 int length= 0; | |
| 4466 if (matchRegion !is null) { | |
| 4467 widgetPos= matchRegion.getOffset(); | |
| 4468 length= matchRegion.getLength(); | |
| 4469 } | |
| 4470 int modelPos= widgetPos is -1 ? -1 : widgetOffset2ModelOffset(widgetPos); | |
| 4471 | |
| 4472 if (widgetPos !is -1 && (modelPos < rangeOffset || modelPos + length > rangeOffset + rangeLength)) | |
| 4473 widgetPos= -1; | |
| 4474 | |
| 4475 if (widgetPos > -1) { | |
| 4476 | |
| 4477 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4478 char startChar= adapter.charAt(widgetPos); | |
| 4479 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4480 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 4481 bool redraws= redraws(); | |
| 4482 if (borderHasLineDelimiter && redraws) | |
| 4483 setRedraw(false); | |
| 4484 | |
| 4485 if (redraws()) { | |
| 4486 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4487 internalRevealRange(widgetPos, widgetPos + length); | |
| 4488 selectionChanged(widgetPos, length); | |
| 4489 } else { | |
| 4490 setSelectedRange(modelPos, length); | |
| 4491 if (redraws) | |
| 4492 setRedraw(true); | |
| 4493 } | |
| 4494 | |
| 4495 return modelPos; | |
| 4496 } | |
| 4497 | |
| 4498 | |
| 4499 } catch (BadLocationException x) { | |
|
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|
4500 if (TRACE_ERRORS) |
|
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parents:
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diff
changeset
|
4501 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4502 } |
| 4503 | |
| 4504 return -1; | |
| 4505 } | |
| 4506 | |
| 4507 //---------- text presentation support | |
| 4508 | |
| 4509 /* | |
| 4510 * @see ITextViewer#setTextColor(Color) | |
| 4511 */ | |
| 4512 public void setTextColor(Color color) { | |
| 4513 if (color !is null) | |
| 4514 setTextColor(color, 0, getDocument().getLength(), true); | |
| 4515 } | |
| 4516 | |
| 4517 /* | |
| 4518 * @see ITextViewer#setTextColor(Color, start, length, bool) | |
| 4519 */ | |
| 4520 public void setTextColor(Color color, int start, int length, bool controlRedraw) { | |
| 4521 if (fTextWidget !is null) { | |
| 4522 | |
| 4523 StyleRange s= new StyleRange(); | |
| 4524 s.foreground= color; | |
| 4525 s.start= start; | |
| 4526 s.length= length; | |
| 4527 | |
| 4528 s= modelStyleRange2WidgetStyleRange(s); | |
| 4529 if (s !is null) { | |
| 4530 if (controlRedraw) | |
| 4531 fTextWidget.setRedraw(false); | |
| 4532 try { | |
| 4533 fTextWidget.setStyleRange(s); | |
| 4534 } finally { | |
| 4535 if (controlRedraw) | |
| 4536 fTextWidget.setRedraw(true); | |
| 4537 } | |
| 4538 } | |
| 4539 } | |
| 4540 } | |
| 4541 | |
| 4542 /** | |
| 4543 * Adds the given presentation to the viewer's style information. | |
| 4544 * | |
| 4545 * @param presentation the presentation to be added | |
| 4546 */ | |
| 4547 private void addPresentation(TextPresentation presentation) { | |
| 4548 | |
| 4549 StyleRange range= presentation.getDefaultStyleRange(); | |
| 4550 if (range !is null) { | |
| 4551 | |
| 4552 range= modelStyleRange2WidgetStyleRange(range); | |
| 4553 if (range !is null) | |
| 4554 fTextWidget.setStyleRange(range); | |
|
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|
4555 |
| 129 | 4556 ArrayList ranges= new ArrayList(presentation.getDenumerableRanges()); |
| 4557 Iterator e= presentation.getNonDefaultStyleRangeIterator(); | |
| 4558 while (e.hasNext()) { | |
| 134 | 4559 range= cast(StyleRange) e.next(); |
| 129 | 4560 range= modelStyleRange2WidgetStyleRange(range); |
| 4561 if (range !is null) | |
| 4562 ranges.add(range); | |
| 4563 } | |
|
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138
diff
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|
4564 |
| 129 | 4565 if (!ranges.isEmpty()) |
| 156 | 4566 fTextWidget.replaceStyleRanges(0, 0, arraycast!(StyleRange)(ranges.toArray())); |
|
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|
4567 |
| 129 | 4568 } else { |
| 4569 IRegion region= modelRange2WidgetRange(presentation.getCoverage()); | |
| 4570 if (region is null) | |
| 4571 return; | |
| 4572 | |
| 4573 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4574 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4575 while (e.hasNext()) { | |
| 134 | 4576 range= cast(StyleRange) e.next(); |
| 129 | 4577 range= modelStyleRange2WidgetStyleRange(range); |
| 4578 if (range !is null) | |
| 4579 list.add(range); | |
| 4580 } | |
| 4581 | |
| 4582 if (!list.isEmpty()) { | |
| 4583 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4584 list.toArray(ranges); | |
| 4585 fTextWidget.replaceStyleRanges(region.getOffset(), region.getLength(), ranges); | |
| 4586 } | |
| 4587 } | |
| 4588 } | |
| 4589 | |
| 4590 /** | |
| 4591 * Applies the given presentation to the given text widget. Helper method. | |
| 4592 * | |
| 4593 * @param presentation the style information | |
| 4594 * @since 2.1 | |
| 4595 */ | |
| 4596 private void applyTextPresentation(TextPresentation presentation) { | |
| 4597 | |
| 4598 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4599 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4600 while (e.hasNext()) { | |
| 134 | 4601 StyleRange range= cast(StyleRange) e.next(); |
| 129 | 4602 range= modelStyleRange2WidgetStyleRange(range); |
| 4603 if (range !is null) | |
| 4604 list.add(range); | |
| 4605 } | |
| 4606 | |
| 4607 if (!list.isEmpty()) { | |
| 4608 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4609 list.toArray(ranges); | |
| 4610 fTextWidget.setStyleRanges(ranges); | |
| 4611 } | |
| 4612 } | |
| 4613 | |
| 4614 /** | |
| 4615 * Returns the visible region if it is not equal to the whole document. | |
| 4616 * Otherwise returns <code>null</code>. | |
| 4617 * | |
| 4618 * @return the viewer's visible region if smaller than input document, otherwise <code>null</code> | |
| 4619 */ | |
| 4620 protected IRegion _internalGetVisibleRegion() { | |
| 4621 | |
| 4622 IDocument document= getVisibleDocument(); | |
| 138 | 4623 if ( cast(ChildDocument)document ) { |
| 134 | 4624 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 4625 return new Region(p.getOffset(), p.getLength()); |
| 4626 } | |
| 4627 | |
| 4628 return null; | |
| 4629 } | |
| 4630 | |
| 4631 /* | |
| 4632 * @see ITextViewer#changeTextPresentation(TextPresentation, bool) | |
| 4633 */ | |
| 4634 public void changeTextPresentation(TextPresentation presentation, bool controlRedraw) { | |
| 4635 | |
| 4636 if (presentation is null || !redraws()) | |
| 4637 return; | |
| 4638 | |
| 4639 if (fTextWidget is null) | |
| 4640 return; | |
| 4641 | |
| 4642 | |
| 4643 /* | |
| 4644 * Call registered text presentation listeners | |
| 4645 * and let them apply their presentation. | |
| 4646 */ | |
| 4647 if (fTextPresentationListeners !is null) { | |
| 4648 ArrayList listeners= new ArrayList(fTextPresentationListeners); | |
| 4649 for (int i= 0, size= listeners.size(); i < size; i++) { | |
| 134 | 4650 ITextPresentationListener listener= cast(ITextPresentationListener)listeners.get(i); |
| 129 | 4651 listener.applyTextPresentation(presentation); |
| 4652 } | |
| 4653 } | |
| 4654 | |
| 4655 if (presentation.isEmpty()) | |
| 4656 return; | |
| 4657 | |
| 4658 if (controlRedraw) | |
| 4659 fTextWidget.setRedraw(false); | |
| 4660 | |
| 4661 if (fReplaceTextPresentation) | |
| 4662 applyTextPresentation(presentation); | |
| 4663 else | |
| 4664 addPresentation(presentation); | |
| 4665 | |
| 4666 if (controlRedraw) | |
| 4667 fTextWidget.setRedraw(true); | |
| 4668 } | |
| 4669 | |
| 4670 /* | |
| 4671 * @see ITextViewer#getFindReplaceTarget() | |
| 4672 */ | |
| 4673 public IFindReplaceTarget getFindReplaceTarget() { | |
| 4674 if (fFindReplaceTarget is null) | |
| 4675 fFindReplaceTarget= new FindReplaceTarget(); | |
| 4676 return fFindReplaceTarget; | |
| 4677 } | |
| 4678 | |
| 4679 /** | |
| 4680 * Returns the find/replace document adapter. | |
| 4681 * | |
| 4682 * @return the find/replace document adapter. | |
| 4683 * @since 3.0 | |
| 4684 */ | |
| 4685 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() { | |
| 4686 if (fFindReplaceDocumentAdapter is null) | |
| 4687 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(getVisibleDocument()); | |
| 4688 return fFindReplaceDocumentAdapter; | |
| 4689 } | |
| 4690 | |
| 4691 /* | |
| 4692 * @see ITextViewer#getTextOperationTarget() | |
| 4693 */ | |
| 4694 public ITextOperationTarget getTextOperationTarget() { | |
| 4695 return this; | |
| 4696 } | |
| 4697 | |
| 4698 /* | |
| 4699 * @see ITextViewerExtension#appendVerifyKeyListener(VerifyKeyListener) | |
| 4700 * @since 2.0 | |
| 4701 */ | |
| 4702 public void appendVerifyKeyListener(VerifyKeyListener listener) { | |
| 4703 int index= fVerifyKeyListenersManager.numberOfListeners(); | |
| 4704 fVerifyKeyListenersManager.insertListener(listener, index); | |
| 4705 } | |
| 4706 | |
| 4707 /* | |
| 4708 * @see ITextViewerExtension#prependVerifyKeyListener(VerifyKeyListener) | |
| 4709 * @since 2.0 | |
| 4710 */ | |
| 4711 public void prependVerifyKeyListener(VerifyKeyListener listener) { | |
| 4712 fVerifyKeyListenersManager.insertListener(listener, 0); | |
| 4713 | |
| 4714 } | |
| 4715 | |
| 4716 /* | |
| 4717 * @see ITextViewerExtension#removeVerifyKeyListener(VerifyKeyListener) | |
| 4718 * @since 2.0 | |
| 4719 */ | |
| 4720 public void removeVerifyKeyListener(VerifyKeyListener listener) { | |
| 4721 fVerifyKeyListenersManager.removeListener(listener); | |
| 4722 } | |
| 4723 | |
| 4724 /* | |
| 4725 * @see ITextViewerExtension#getMark() | |
| 4726 * @since 2.0 | |
| 4727 */ | |
| 4728 public int getMark() { | |
| 4729 return fMarkPosition is null || fMarkPosition.isDeleted() ? -1 : fMarkPosition.getOffset(); | |
| 4730 } | |
| 4731 | |
| 4732 /* | |
| 4733 * @see ITextViewerExtension#setMark(int) | |
| 4734 * @since 2.0 | |
| 4735 */ | |
| 4736 public void setMark(int offset) { | |
| 4737 | |
| 4738 // clear | |
| 4739 if (offset is -1) { | |
| 4740 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) { | |
| 4741 | |
| 4742 IDocument document= getDocument(); | |
| 4743 if (document !is null) | |
| 4744 document.removePosition(fMarkPosition); | |
| 4745 } | |
| 4746 | |
| 4747 fMarkPosition= null; | |
| 4748 | |
| 4749 markChanged(-1, 0); | |
| 4750 | |
| 4751 // set | |
| 4752 } else { | |
| 4753 | |
| 4754 IDocument document= getDocument(); | |
| 4755 if (document is null) { | |
| 4756 fMarkPosition= null; | |
| 4757 return; | |
| 4758 } | |
| 4759 | |
| 4760 if (fMarkPosition !is null) | |
| 4761 document.removePosition(fMarkPosition); | |
| 4762 | |
| 4763 fMarkPosition= null; | |
| 4764 | |
| 4765 try { | |
| 4766 | |
| 4767 Position position= new Position(offset); | |
| 4768 document.addPosition(MARK_POSITION_CATEGORY, position); | |
| 4769 fMarkPosition= position; | |
| 4770 | |
| 4771 } catch (BadLocationException e) { | |
| 4772 return; | |
| 4773 } catch (BadPositionCategoryException e) { | |
| 4774 return; | |
| 4775 } | |
| 4776 | |
| 4777 markChanged(modelOffset2WidgetOffset(fMarkPosition.offset), 0); | |
| 4778 } | |
| 4779 } | |
| 4780 | |
| 4781 /* | |
| 4782 * @see Viewer#inputChanged(Object, Object) | |
| 4783 * @since 2.0 | |
| 4784 */ | |
| 4785 protected void inputChanged(Object newInput, Object oldInput) { | |
| 4786 | |
| 134 | 4787 IDocument oldDocument= cast(IDocument) oldInput; |
| 129 | 4788 if (oldDocument !is null) { |
| 4789 | |
| 4790 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) | |
| 4791 oldDocument.removePosition(fMarkPosition); | |
| 4792 | |
| 4793 try { | |
| 4794 oldDocument.removePositionUpdater(fMarkPositionUpdater); | |
| 4795 oldDocument.removePositionCategory(MARK_POSITION_CATEGORY); | |
| 4796 | |
| 4797 } catch (BadPositionCategoryException e) { | |
| 4798 } | |
| 4799 } | |
| 4800 | |
| 4801 fMarkPosition= null; | |
| 4802 | |
| 138 | 4803 if ( cast(IDocumentExtension4)oldDocument ) { |
| 134 | 4804 IDocumentExtension4 document= cast(IDocumentExtension4) oldDocument; |
| 129 | 4805 document.removeDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4806 } | |
| 4807 | |
| 4808 super.inputChanged(newInput, oldInput); | |
| 4809 | |
| 138 | 4810 if ( cast(IDocumentExtension4)newInput ) { |
| 134 | 4811 IDocumentExtension4 document= cast(IDocumentExtension4) newInput; |
| 129 | 4812 document.addDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4813 } | |
| 4814 | |
| 134 | 4815 IDocument newDocument= cast(IDocument) newInput; |
| 129 | 4816 if (newDocument !is null) { |
| 4817 newDocument.addPositionCategory(MARK_POSITION_CATEGORY); | |
| 4818 newDocument.addPositionUpdater(fMarkPositionUpdater); | |
| 4819 } | |
| 4820 } | |
| 4821 | |
| 4822 /** | |
| 4823 * Informs all text listeners about the change of the viewer's redraw state. | |
| 4824 * @since 2.0 | |
| 4825 */ | |
| 4826 private void fireRedrawChanged() { | |
| 4827 fWidgetCommand.start= 0; | |
| 4828 fWidgetCommand.length= 0; | |
| 4829 fWidgetCommand.text= null; | |
| 4830 fWidgetCommand.event= null; | |
| 4831 updateTextListeners(fWidgetCommand); | |
| 4832 } | |
| 4833 | |
| 4834 /** | |
| 4835 * Enables the redrawing of this text viewer. | |
| 4836 * @since 2.0 | |
| 4837 */ | |
| 4838 protected void enabledRedrawing() { | |
| 4839 enabledRedrawing(-1); | |
| 4840 } | |
| 4841 /** | |
| 4842 * Enables the redrawing of this text viewer. | |
| 4843 * | |
| 4844 * @param topIndex the top index to be set or <code>-1</code> | |
| 4845 * @since 3.0 | |
| 4846 */ | |
| 4847 protected void enabledRedrawing(int topIndex) { | |
| 138 | 4848 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4849 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4850 StyledText textWidget= getTextWidget(); |
| 4851 if (textWidget !is null && !textWidget.isDisposed()) { | |
| 4852 extension.resumeForwardingDocumentChanges(); | |
| 4853 if (topIndex > -1) { | |
| 4854 try { | |
| 4855 setTopIndex(topIndex); | |
| 4856 } catch (IllegalArgumentException x) { | |
| 4857 // changes don't allow for the previous top pixel | |
| 4858 } | |
| 4859 } | |
| 4860 } | |
| 4861 } | |
| 4862 | |
| 4863 if (fViewerState !is null) { | |
| 4864 fViewerState.restore(topIndex is -1); | |
| 4865 fViewerState= null; | |
| 4866 } | |
| 4867 | |
| 4868 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4869 fTextWidget.setRedraw(true); | |
| 4870 | |
| 4871 fireRedrawChanged(); | |
| 4872 } | |
| 4873 | |
| 4874 /** | |
| 4875 * Disables the redrawing of this text viewer. Subclasses may extend. | |
| 4876 * @since 2.0 | |
| 4877 */ | |
| 4878 protected void disableRedrawing() { | |
| 4879 if (fViewerState is null) | |
| 4880 fViewerState= new ViewerState(); | |
| 4881 | |
| 138 | 4882 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4883 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4884 extension.stopForwardingDocumentChanges(); |
| 4885 } | |
| 4886 | |
| 4887 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4888 fTextWidget.setRedraw(false); | |
| 4889 | |
| 4890 fireRedrawChanged(); | |
| 4891 } | |
| 4892 | |
| 4893 /* | |
| 4894 * @see ITextViewerExtension#setRedraw(bool) | |
| 4895 * @since 2.0 | |
| 4896 */ | |
| 4897 public final void setRedraw(bool redraw) { | |
| 4898 setRedraw(redraw, -1); | |
| 4899 } | |
| 4900 | |
| 4901 /** | |
| 4902 * Basically same functionality as | |
| 4903 * <code>ITextViewerExtension.setRedraw(bool)</code>. Adds a way for | |
| 4904 * subclasses to pass in a desired top index that should be used when | |
| 4905 * <code>redraw</code> is <code>true</code>. If <code>topIndex</code> | |
| 4906 * is -1, this method is identical to | |
| 4907 * <code>ITextViewerExtension.setRedraw(bool)</code>. | |
| 4908 * | |
| 4909 * @see ITextViewerExtension#setRedraw(bool) | |
| 4910 * | |
| 4911 * @param redraw | |
| 4912 * @param topIndex | |
| 4913 * @since 3.0 | |
| 4914 */ | |
| 4915 protected final void setRedraw(bool redraw, int topIndex) { | |
| 4916 if (!redraw) { | |
| 4917 | |
| 4918 ++ fRedrawCounter; | |
| 4919 if (fRedrawCounter is 1) | |
| 4920 disableRedrawing(); | |
| 4921 | |
| 4922 } else { | |
| 4923 -- fRedrawCounter; | |
| 4924 if (fRedrawCounter is 0) { | |
| 4925 if (topIndex is -1) | |
| 4926 enabledRedrawing(); | |
| 4927 else | |
| 4928 enabledRedrawing(topIndex); | |
| 4929 } | |
| 4930 } | |
| 4931 } | |
| 4932 | |
| 4933 /** | |
| 4934 * Returns whether this viewer redraws itself. | |
| 4935 * | |
| 4936 * @return <code>true</code> if this viewer redraws itself | |
| 4937 * @since 2.0 | |
| 4938 */ | |
| 4939 protected final bool redraws() { | |
| 4940 return fRedrawCounter <= 0; | |
| 4941 } | |
| 4942 | |
| 4943 /** | |
| 4944 * Starts the sequential rewrite mode of the viewer's document. | |
| 4945 * | |
| 4946 * @param normalized <code>true</code> if the rewrite is performed from the start to the end of the document | |
| 4947 * @since 2.0 | |
| 4948 * @deprecated since 3.1 use {@link IDocumentExtension4#startRewriteSession(DocumentRewriteSessionType)} instead | |
| 4949 */ | |
| 4950 protected final void startSequentialRewriteMode(bool normalized) { | |
| 4951 IDocument document= getDocument(); | |
| 138 | 4952 if ( cast(IDocumentExtension)document ) { |
| 134 | 4953 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4954 extension.startSequentialRewrite(normalized); |
| 4955 } | |
| 4956 } | |
| 4957 | |
| 4958 /** | |
| 4959 * Sets the sequential rewrite mode of the viewer's document. | |
| 4960 * | |
| 4961 * @since 2.0 | |
| 4962 * @deprecated since 3.1 use {@link IDocumentExtension4#stopRewriteSession(DocumentRewriteSession)} instead | |
| 4963 */ | |
| 4964 protected final void stopSequentialRewriteMode() { | |
| 4965 IDocument document= getDocument(); | |
| 138 | 4966 if ( cast(IDocumentExtension)document ) { |
| 134 | 4967 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4968 extension.stopSequentialRewrite(); |
| 4969 } | |
| 4970 } | |
| 4971 | |
| 4972 /* | |
| 4973 * @see dwtx.jface.text.ITextViewerExtension#getRewriteTarget() | |
| 4974 * @since 2.0 | |
| 4975 */ | |
| 4976 public IRewriteTarget getRewriteTarget() { | |
| 4977 if (fRewriteTarget is null) | |
| 4978 fRewriteTarget= new RewriteTarget(); | |
| 4979 return fRewriteTarget; | |
| 4980 } | |
| 4981 | |
| 4982 /* | |
| 4983 * @see dwtx.jface.text.ITextViewerExtension2#getCurrentTextHover() | |
| 4984 */ | |
| 4985 public ITextHover getCurrentTextHover() { | |
| 4986 if (fTextHoverManager is null) | |
| 4987 return null; | |
| 4988 return fTextHoverManager.getCurrentTextHover(); | |
| 4989 } | |
| 4990 | |
| 4991 /* | |
| 4992 * @see dwtx.jface.text.ITextViewerExtension2#getHoverEventLocation() | |
| 4993 */ | |
| 4994 public Point getHoverEventLocation() { | |
| 4995 if (fTextHoverManager is null) | |
| 4996 return null; | |
| 4997 return fTextHoverManager.getHoverEventLocation(); | |
| 4998 } | |
| 4999 | |
| 5000 /** | |
| 5001 * Returns the paint manager of this viewer. | |
| 5002 * | |
| 5003 * @return the paint manager of this viewer | |
| 5004 * @since 2.1 | |
| 5005 */ | |
| 5006 protected PaintManager getPaintManager() { | |
| 5007 if (fPaintManager is null) | |
| 5008 fPaintManager= new PaintManager(this); | |
| 5009 return fPaintManager; | |
| 5010 } | |
| 5011 | |
| 5012 /** | |
| 5013 * Adds the given painter to this viewer. If the painter is already registered | |
| 5014 * this method is without effect. | |
| 5015 * | |
| 5016 * @param painter the painter to be added | |
| 5017 * @since 2.1 | |
| 5018 */ | |
| 5019 public void addPainter(IPainter painter) { | |
| 5020 getPaintManager().addPainter(painter); | |
| 5021 } | |
| 5022 | |
| 5023 /** | |
| 5024 * Removes the given painter from this viewer. If the painter has previously not been | |
| 5025 * added to this viewer this method is without effect. | |
| 5026 * | |
| 5027 * @param painter the painter to be removed | |
| 5028 * @since 2.1 | |
| 5029 */ | |
| 5030 public void removePainter(IPainter painter) { | |
| 5031 getPaintManager().removePainter(painter); | |
| 5032 } | |
| 5033 | |
| 5034 // ----------------------------------- conversions ------------------------------------------------------- | |
| 5035 | |
| 5036 /** | |
| 5037 * Implements the contract of {@link ITextViewerExtension5#modelLine2WidgetLine(int)}. | |
| 5038 * | |
| 5039 * @param modelLine the model line | |
| 5040 * @return the corresponding widget line or <code>-1</code> | |
| 5041 * @since 2.1 | |
| 5042 */ | |
| 5043 public int modelLine2WidgetLine(int modelLine) { | |
| 5044 if (fInformationMapping is null) | |
| 5045 return modelLine; | |
| 5046 | |
| 5047 try { | |
| 5048 return fInformationMapping.toImageLine(modelLine); | |
| 5049 } catch (BadLocationException x) { | |
| 5050 } | |
| 5051 | |
| 5052 return -1; | |
| 5053 } | |
| 5054 | |
| 5055 /** | |
| 5056 * Implements the contract of {@link ITextViewerExtension5#modelOffset2WidgetOffset(int)}. | |
| 5057 * | |
| 5058 * @param modelOffset the model offset | |
| 5059 * @return the corresponding widget offset or <code>-1</code> | |
| 5060 * @since 2.1 | |
| 5061 */ | |
| 5062 public int modelOffset2WidgetOffset(int modelOffset) { | |
| 5063 if (fInformationMapping is null) | |
| 5064 return modelOffset; | |
| 5065 | |
| 5066 try { | |
| 5067 return fInformationMapping.toImageOffset(modelOffset); | |
| 5068 } catch (BadLocationException x) { | |
| 5069 } | |
| 5070 | |
| 5071 return -1; | |
| 5072 } | |
| 5073 | |
| 5074 /** | |
| 5075 * Implements the contract of {@link ITextViewerExtension5#modelRange2WidgetRange(IRegion)}. | |
| 5076 * | |
| 5077 * @param modelRange the model range | |
| 5078 * @return the corresponding widget range or <code>null</code> | |
| 5079 * @since 2.1 | |
| 5080 */ | |
| 5081 public IRegion modelRange2WidgetRange(IRegion modelRange) { | |
| 5082 if (fInformationMapping is null) | |
| 5083 return modelRange; | |
| 5084 | |
| 5085 try { | |
| 5086 | |
| 5087 if (modelRange.getLength() < 0) { | |
| 5088 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 5089 IRegion result= fInformationMapping.toImageRegion(reversed); | |
| 5090 if (result !is null) | |
| 5091 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5092 } | |
| 5093 return fInformationMapping.toImageRegion(modelRange); | |
| 5094 | |
| 5095 } catch (BadLocationException x) { | |
| 5096 } | |
| 5097 | |
| 5098 return null; | |
| 5099 } | |
| 5100 | |
| 5101 /** | |
| 5102 * Similar to {@link #modelRange2WidgetRange(IRegion)}, but more forgiving: | |
| 5103 * if <code>modelRange</code> describes a region entirely hidden in the | |
| 5104 * image, then this method returns the zero-length region at the offset of | |
| 5105 * the folded region. | |
| 5106 * | |
| 5107 * @param modelRange the model range | |
| 5108 * @return the corresponding widget range, or <code>null</code> | |
| 5109 * @since 3.1 | |
| 5110 */ | |
| 5111 protected IRegion modelRange2ClosestWidgetRange(IRegion modelRange) { | |
| 138 | 5112 if (!( cast(IDocumentInformationMappingExtension2)fInformationMapping )) |
| 129 | 5113 return modelRange2WidgetRange(modelRange); |
| 5114 | |
| 5115 try { | |
| 5116 if (modelRange.getLength() < 0) { | |
| 5117 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 134 | 5118 IRegion result= (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(reversed); |
| 129 | 5119 if (result !is null) |
| 5120 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5121 } | |
| 134 | 5122 return (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(modelRange); |
| 129 | 5123 |
| 5124 } catch (BadLocationException x) { | |
| 5125 } | |
| 5126 | |
| 5127 return null; | |
| 5128 } | |
| 5129 | |
| 5130 /** | |
| 5131 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5132 * | |
| 5133 * @param widgetLine the widget line | |
| 5134 * @return the corresponding model line | |
| 5135 * @since 2.1 | |
| 5136 */ | |
| 5137 public int widgetlLine2ModelLine(int widgetLine) { | |
| 5138 return widgetLine2ModelLine(widgetLine); | |
| 5139 } | |
| 5140 | |
| 5141 /** | |
| 5142 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5143 * | |
| 5144 * @param widgetLine the widget line | |
| 5145 * @return the corresponding model line or <code>-1</code> | |
| 5146 * @since 3.0 | |
| 5147 */ | |
| 5148 public int widgetLine2ModelLine(int widgetLine) { | |
| 5149 if (fInformationMapping is null) | |
| 5150 return widgetLine; | |
| 5151 | |
| 5152 try { | |
| 5153 return fInformationMapping.toOriginLine(widgetLine); | |
| 5154 } catch (BadLocationException x) { | |
| 5155 } | |
| 5156 | |
| 5157 return -1; | |
| 5158 } | |
| 5159 | |
| 5160 /** | |
| 5161 * Implements the contract of {@link ITextViewerExtension5#widgetOffset2ModelOffset(int)}. | |
| 5162 * | |
| 5163 * @param widgetOffset the widget offset | |
| 5164 * @return the corresponding model offset or <code>-1</code> | |
| 5165 * @since 2.1 | |
| 5166 */ | |
| 5167 public int widgetOffset2ModelOffset(int widgetOffset) { | |
| 5168 if (fInformationMapping is null) | |
| 5169 return widgetOffset; | |
| 5170 | |
| 5171 try { | |
| 5172 return fInformationMapping.toOriginOffset(widgetOffset); | |
| 5173 } catch (BadLocationException x) { | |
| 5174 if (widgetOffset is getVisibleDocument().getLength()) { | |
| 5175 IRegion coverage= fInformationMapping.getCoverage(); | |
| 5176 return coverage.getOffset() + coverage.getLength(); | |
| 5177 } | |
| 5178 } | |
| 5179 | |
| 5180 return -1; | |
| 5181 } | |
| 5182 | |
| 5183 /** | |
| 5184 * Implements the contract of {@link ITextViewerExtension5#widgetRange2ModelRange(IRegion)}. | |
| 5185 * | |
| 5186 * @param widgetRange the widget range | |
| 5187 * @return the corresponding model range or <code>null</code> | |
| 5188 * @since 2.1 | |
| 5189 */ | |
| 5190 public IRegion widgetRange2ModelRange(IRegion widgetRange) { | |
| 5191 if (fInformationMapping is null) | |
| 5192 return widgetRange; | |
| 5193 | |
| 5194 try { | |
| 5195 | |
| 5196 if (widgetRange.getLength() < 0) { | |
| 5197 Region reveresed= new Region(widgetRange.getOffset() + widgetRange.getLength(), -widgetRange.getLength()); | |
| 5198 IRegion result= fInformationMapping.toOriginRegion(reveresed); | |
| 5199 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5200 } | |
| 5201 | |
| 5202 return fInformationMapping.toOriginRegion(widgetRange); | |
| 5203 | |
| 5204 } catch (BadLocationException x) { | |
| 5205 int modelOffset= widgetOffset2ModelOffset(widgetRange.getOffset()); | |
| 5206 if (modelOffset > -1) { | |
| 5207 int modelEndOffset= widgetOffset2ModelOffset(widgetRange.getOffset() + widgetRange.getLength()); | |
| 5208 if (modelEndOffset > -1) | |
| 5209 return new Region(modelOffset, modelEndOffset - modelOffset); | |
| 5210 } | |
| 5211 } | |
| 5212 | |
| 5213 return null; | |
| 5214 } | |
| 5215 | |
| 5216 /** | |
| 5217 * Implements the contract of {@link ITextViewerExtension5#getModelCoverage()}. | |
| 5218 * | |
| 5219 * @return the model coverage | |
| 5220 * @since 2.1 | |
| 5221 */ | |
| 5222 public IRegion getModelCoverage() { | |
| 5223 if (fInformationMapping is null) { | |
| 5224 IDocument document= getDocument(); | |
| 5225 if (document is null) | |
| 5226 return null; | |
| 5227 return new Region(0, document.getLength()); | |
| 5228 } | |
| 5229 | |
| 5230 return fInformationMapping.getCoverage(); | |
| 5231 } | |
| 5232 | |
| 5233 /** | |
| 5234 * Returns the line of the widget whose corresponding line in the viewer's document | |
| 5235 * is closest to the given line in the viewer's document or <code>-1</code>. | |
| 5236 * | |
| 5237 * @param modelLine the line in the viewer's document | |
| 5238 * @return the line in the widget that corresponds best to the given line in the viewer's document or <code>-1</code> | |
| 5239 * @since 2.1 | |
| 5240 */ | |
| 5241 protected int getClosestWidgetLineForModelLine(int modelLine) { | |
| 5242 if (fInformationMapping is null) | |
| 5243 return modelLine; | |
| 5244 | |
| 5245 try { | |
| 5246 return fInformationMapping.toClosestImageLine(modelLine); | |
| 5247 } catch (BadLocationException x) { | |
| 5248 } | |
| 5249 | |
| 5250 return -1; | |
| 5251 } | |
| 5252 | |
| 5253 /** | |
| 5254 * Translates a style range given relative to the viewer's document into style | |
| 5255 * ranges relative to the viewer's widget or <code>null</code>. | |
| 5256 * | |
| 5257 * @param range the style range in the coordinates of the viewer's document | |
| 5258 * @return the style range in the coordinates of the viewer's widget or <code>null</code> | |
| 5259 * @since 2.1 | |
| 5260 */ | |
| 5261 protected StyleRange modelStyleRange2WidgetStyleRange(StyleRange range) { | |
| 5262 IRegion region= modelRange2WidgetRange(new Region(range.start, range.length)); | |
| 5263 if (region !is null) { | |
| 134 | 5264 StyleRange result= cast(StyleRange) range.clone(); |
| 129 | 5265 result.start= region.getOffset(); |
| 5266 result.length= region.getLength(); | |
| 5267 return result; | |
| 5268 } | |
| 5269 return null; | |
| 5270 } | |
| 5271 | |
| 5272 /** | |
| 5273 * Same as {@link #modelRange2WidgetRange(IRegion)} just for a {@link dwtx.jface.text.Position}. | |
| 5274 * | |
| 5275 * @param modelPosition the position describing a range in the viewer's document | |
| 5276 * @return a region describing a range in the viewer's widget | |
| 5277 * @since 2.1 | |
| 5278 */ | |
| 5279 protected IRegion modelRange2WidgetRange(Position modelPosition) { | |
| 5280 return modelRange2WidgetRange(new Region(modelPosition.getOffset(), modelPosition.getLength())); | |
| 5281 } | |
| 5282 | |
| 5283 /** | |
| 5284 * Translates the widget region of the given verify event into | |
| 5285 * the corresponding region of the viewer's document. | |
| 5286 * | |
| 5287 * @param event the verify event | |
| 5288 * @return the region of the viewer's document corresponding to the verify event | |
| 5289 * @since 2.1 | |
| 5290 */ | |
| 5291 protected IRegion event2ModelRange(VerifyEvent event) { | |
| 5292 | |
| 5293 Region region= null; | |
| 5294 if (event.start <= event.end) | |
| 5295 region= new Region(event.start, event.end - event.start); | |
| 5296 else | |
| 5297 region= new Region(event.end, event.start - event.end); | |
| 5298 | |
| 5299 return widgetRange2ModelRange(region); | |
| 5300 } | |
| 5301 | |
| 5302 /** | |
| 5303 * Translates the given widget selection into the corresponding region | |
| 5304 * of the viewer's document or returns <code>null</code> if this fails. | |
| 5305 * | |
| 5306 * @param widgetSelection the widget selection | |
| 5307 * @return the region of the viewer's document corresponding to the widget selection or <code>null</code> | |
| 5308 * @since 2.1 | |
| 5309 */ | |
| 5310 protected Point widgetSelection2ModelSelection(Point widgetSelection) { | |
| 5311 IRegion region= new Region(widgetSelection.x, widgetSelection.y); | |
| 5312 region= widgetRange2ModelRange(region); | |
| 5313 return region is null ? null : new Point(region.getOffset(), region.getLength()); | |
| 5314 } | |
| 5315 | |
| 5316 /** | |
| 5317 * Translates the given selection range of the viewer's document into | |
| 5318 * the corresponding widget range or returns <code>null</code> of this fails. | |
| 5319 * | |
| 5320 * @param modelSelection the selection range of the viewer's document | |
| 5321 * @return the widget range corresponding to the selection range or <code>null</code> | |
| 5322 * @since 2.1 | |
| 5323 */ | |
| 5324 protected Point modelSelection2WidgetSelection(Point modelSelection) { | |
| 5325 if (fInformationMapping is null) | |
| 5326 return modelSelection; | |
| 5327 | |
| 5328 try { | |
| 5329 IRegion region= new Region(modelSelection.x, modelSelection.y); | |
| 5330 region= fInformationMapping.toImageRegion(region); | |
| 5331 if (region !is null) | |
| 5332 return new Point(region.getOffset(), region.getLength()); | |
| 5333 } catch (BadLocationException x) { | |
| 5334 } | |
| 5335 | |
| 5336 return null; | |
| 5337 } | |
| 5338 | |
| 5339 /** | |
| 5340 * Implements the contract of {@link ITextViewerExtension5#widgetLineOfWidgetOffset(int)}. | |
| 5341 * | |
| 5342 * @param widgetOffset the widget offset | |
| 5343 * @return the corresponding widget line or <code>-1</code> | |
| 5344 * @since 2.1 | |
| 5345 */ | |
| 5346 public int widgetLineOfWidgetOffset(int widgetOffset) { | |
| 5347 IDocument document= getVisibleDocument(); | |
| 5348 if (document !is null) { | |
| 5349 try { | |
| 5350 return document.getLineOfOffset(widgetOffset); | |
| 5351 } catch (BadLocationException e) { | |
| 5352 } | |
| 5353 } | |
| 5354 return -1; | |
| 5355 } | |
| 5356 | |
| 5357 /* | |
| 5358 * @see dwtx.jface.text.ITextViewerExtension4#moveFocusToWidgetToken() | |
| 5359 * @since 3.0 | |
| 5360 */ | |
| 5361 public bool moveFocusToWidgetToken() { | |
| 138 | 5362 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 5363 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 5364 return extension.setFocus(this); |
| 5365 } | |
| 5366 return false; | |
| 5367 } | |
| 5368 | |
| 5369 /** | |
| 5370 * Sets the document partitioning of this viewer. The partitioning is used by this viewer to | |
| 5371 * access partitioning information of the viewers input document. | |
| 5372 * | |
| 5373 * @param partitioning the partitioning name | |
| 5374 * @since 3.0 | |
| 5375 */ | |
| 5376 public void setDocumentPartitioning(String partitioning) { | |
| 5377 fPartitioning= partitioning; | |
| 5378 } | |
| 5379 | |
| 5380 /** | |
| 5381 * Returns the document partitioning for this viewer. | |
| 5382 * | |
| 5383 * @return the document partitioning for this viewer | |
| 5384 * @since 3.0 | |
| 5385 */ | |
| 5386 protected String getDocumentPartitioning() { | |
| 5387 return fPartitioning; | |
| 5388 } | |
| 5389 | |
| 5390 //---- Text presentation listeners ---- | |
| 5391 | |
| 5392 /* | |
| 5393 * @see ITextViewerExtension4#addTextPresentationListener(ITextPresentationListener) | |
| 5394 * @since 3.0 | |
| 5395 */ | |
| 5396 public void addTextPresentationListener(ITextPresentationListener listener) { | |
| 5397 | |
| 5398 Assert.isNotNull(listener); | |
| 5399 | |
| 5400 if (fTextPresentationListeners is null) | |
| 5401 fTextPresentationListeners= new ArrayList(); | |
| 5402 | |
| 5403 if (!fTextPresentationListeners.contains(listener)) | |
| 5404 fTextPresentationListeners.add(listener); | |
| 5405 } | |
| 5406 | |
| 5407 /* | |
| 5408 * @see ITextViewerExtension4#removeTextPresentationListener(ITextPresentationListener) | |
| 5409 * @since 3.0 | |
| 5410 */ | |
| 5411 public void removeTextPresentationListener(ITextPresentationListener listener) { | |
| 5412 | |
| 5413 Assert.isNotNull(listener); | |
| 5414 | |
| 5415 if (fTextPresentationListeners !is null) { | |
| 5416 fTextPresentationListeners.remove(listener); | |
| 5417 if (fTextPresentationListeners.size() is 0) | |
| 5418 fTextPresentationListeners= null; | |
| 5419 } | |
| 5420 } | |
| 5421 | |
| 5422 /* | |
| 5423 * @see dwtx.jface.text.IEditingSupportRegistry#registerHelper(dwtx.jface.text.IEditingSupport) | |
| 5424 * @since 3.1 | |
| 5425 */ | |
| 5426 public void register(IEditingSupport helper) { | |
| 5427 Assert.isLegal(helper !is null); | |
| 5428 fEditorHelpers.add(helper); | |
| 5429 } | |
| 5430 | |
| 5431 /* | |
| 5432 * @see dwtx.jface.text.IEditingSupportRegistry#deregisterHelper(dwtx.jface.text.IEditingSupport) | |
| 5433 * @since 3.1 | |
| 5434 */ | |
| 5435 public void unregister(IEditingSupport helper) { | |
| 5436 fEditorHelpers.remove(helper); | |
| 5437 } | |
| 5438 | |
| 5439 /* | |
| 5440 * @see dwtx.jface.text.IEditingSupportRegistry#getCurrentHelpers() | |
| 5441 * @since 3.1 | |
| 5442 */ | |
| 5443 public IEditingSupport[] getRegisteredSupports() { | |
| 156 | 5444 return arraycast!(IEditingSupport)( fEditorHelpers.toArray()); |
| 129 | 5445 } |
| 5446 | |
| 5447 /* | |
| 5448 * @see dwtx.jface.text.ITextViewerExtension6#setHyperlinkDetectors(dwtx.jface.text.hyperlink.IHyperlinkDetector[], int) | |
| 5449 * @since 3.1 | |
| 5450 */ | |
| 5451 public void setHyperlinkDetectors(IHyperlinkDetector[] hyperlinkDetectors, int eventStateMask) { | |
| 5452 if (fHyperlinkDetectors !is null) { | |
| 5453 for (int i= 0; i < fHyperlinkDetectors.length; i++) { | |
|
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5454 if (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i] ) |
| 134 | 5455 (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i]).dispose(); |
| 129 | 5456 } |
| 5457 } | |
|
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|
5458 |
| 129 | 5459 bool enable= hyperlinkDetectors !is null && hyperlinkDetectors.length > 0; |
| 5460 fHyperlinkStateMask= eventStateMask; | |
| 5461 fHyperlinkDetectors= hyperlinkDetectors; | |
| 5462 if (enable) { | |
| 5463 if (fHyperlinkManager !is null) { | |
| 5464 fHyperlinkManager.setHyperlinkDetectors(fHyperlinkDetectors); | |
| 5465 fHyperlinkManager.setHyperlinkStateMask(fHyperlinkStateMask); | |
| 5466 } | |
| 5467 ensureHyperlinkManagerInstalled(); | |
| 5468 } else { | |
| 5469 if (fHyperlinkManager !is null) | |
| 5470 fHyperlinkManager.uninstall(); | |
| 5471 fHyperlinkManager= null; | |
| 5472 } | |
| 5473 } | |
| 5474 | |
| 5475 /** | |
| 5476 * Sets the hyperlink presenter. | |
| 5477 * <p> | |
| 5478 * This is only valid as long as the hyperlink manager hasn't | |
| 5479 * been created yet. | |
| 5480 * </p> | |
| 5481 * | |
| 5482 * @param hyperlinkPresenter the hyperlink presenter | |
| 5483 * @throws IllegalStateException if the hyperlink manager has already been created | |
| 5484 * @since 3.1 | |
| 5485 */ | |
|
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|
5486 public void setHyperlinkPresenter(IHyperlinkPresenter hyperlinkPresenter) { |
| 129 | 5487 if (fHyperlinkManager !is null) |
| 5488 throw new IllegalStateException(); | |
| 5489 | |
| 5490 fHyperlinkPresenter= hyperlinkPresenter; | |
| 5491 ensureHyperlinkManagerInstalled(); | |
| 5492 } | |
| 5493 | |
| 5494 /** | |
| 5495 * Ensures that the hyperlink manager has been | |
| 5496 * installed if a hyperlink detector is available. | |
| 5497 * | |
| 5498 * @since 3.1 | |
| 5499 */ | |
| 5500 private void ensureHyperlinkManagerInstalled() { | |
| 5501 if (fHyperlinkDetectors !is null && fHyperlinkDetectors.length > 0 && fHyperlinkPresenter !is null && fHyperlinkManager is null) { | |
| 5502 DETECTION_STRATEGY strategy= fHyperlinkPresenter.canShowMultipleHyperlinks() ? HyperlinkManager.ALL : HyperlinkManager.FIRST; | |
| 5503 fHyperlinkManager= new HyperlinkManager(strategy); | |
| 5504 fHyperlinkManager.install(this, fHyperlinkPresenter, fHyperlinkDetectors, fHyperlinkStateMask); | |
| 5505 } | |
| 5506 } | |
| 5507 | |
| 5508 /* | |
| 5509 * @see dwtx.jface.text.ITextViewerExtension7#setTabsToSpacesConverter(dwtx.jface.text.IAutoEditStrategy) | |
| 5510 * @since 3.3 | |
| 5511 */ | |
| 5512 public void setTabsToSpacesConverter(IAutoEditStrategy converter) { | |
| 5513 fTabsToSpacesConverter= converter; | |
| 5514 } | |
| 5515 | |
| 5516 } |