Mercurial > projects > dwt-addons
annotate dwtx/jface/text/TextViewer.d @ 159:7926b636c282
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 27 Aug 2008 01:57:58 +0200 |
| parents | a9566845f1cb |
| children | 3678e4f1a766 |
| 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 | |
| 129 | 156 import dwt.dwthelper.utils; |
|
153
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157 import dwtx.dwtxhelper.Collection; |
| 159 | 158 import dwtx.dwtxhelper.regex; |
| 159 import tango.text.convert.Format; | |
| 129 | 160 |
| 161 import dwt.DWT; | |
| 162 import dwt.custom.LineBackgroundEvent; | |
| 163 import dwt.custom.LineBackgroundListener; | |
| 164 import dwt.custom.MovementEvent; | |
| 165 import dwt.custom.MovementListener; | |
| 166 import dwt.custom.ST; | |
| 167 import dwt.custom.StyleRange; | |
| 168 import dwt.custom.StyledText; | |
| 169 import dwt.custom.StyledTextPrintOptions; | |
| 170 import dwt.custom.VerifyKeyListener; | |
| 171 import dwt.events.ControlEvent; | |
| 172 import dwt.events.ControlListener; | |
| 173 import dwt.events.DisposeEvent; | |
| 174 import dwt.events.DisposeListener; | |
| 175 import dwt.events.KeyEvent; | |
| 176 import dwt.events.KeyListener; | |
| 177 import dwt.events.MouseAdapter; | |
| 178 import dwt.events.MouseEvent; | |
| 179 import dwt.events.MouseListener; | |
| 180 import dwt.events.SelectionEvent; | |
| 181 import dwt.events.SelectionListener; | |
| 182 import dwt.events.TraverseEvent; | |
| 183 import dwt.events.TraverseListener; | |
| 184 import dwt.events.VerifyEvent; | |
| 185 import dwt.events.VerifyListener; | |
| 186 import dwt.graphics.Color; | |
| 187 import dwt.graphics.GC; | |
| 188 import dwt.graphics.Point; | |
| 189 import dwt.graphics.Rectangle; | |
| 190 import dwt.printing.PrintDialog; | |
| 191 import dwt.printing.Printer; | |
| 192 import dwt.printing.PrinterData; | |
| 193 import dwt.widgets.Composite; | |
| 194 import dwt.widgets.Control; | |
| 195 import dwt.widgets.Display; | |
| 196 import dwt.widgets.Event; | |
| 197 import dwt.widgets.Listener; | |
| 198 import dwt.widgets.ScrollBar; | |
| 199 import dwtx.core.runtime.Assert; | |
| 200 import dwtx.jface.internal.text.NonDeletingPositionUpdater; | |
| 201 import dwtx.jface.internal.text.StickyHoverManager; | |
| 202 import dwtx.jface.text.hyperlink.HyperlinkManager; | |
| 203 import dwtx.jface.text.hyperlink.IHyperlinkDetector; | |
| 204 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension; | |
| 205 import dwtx.jface.text.hyperlink.IHyperlinkPresenter; | |
| 159 | 206 import dwtx.jface.text.hyperlink.HyperlinkManager; |
| 129 | 207 import dwtx.jface.text.projection.ChildDocument; |
| 208 import dwtx.jface.text.projection.ChildDocumentManager; | |
| 209 import dwtx.jface.viewers.IPostSelectionProvider; | |
| 210 import dwtx.jface.viewers.ISelection; | |
| 211 import dwtx.jface.viewers.ISelectionChangedListener; | |
| 212 import dwtx.jface.viewers.ISelectionProvider; | |
| 213 import dwtx.jface.viewers.SelectionChangedEvent; | |
| 214 import dwtx.jface.viewers.Viewer; | |
| 215 | |
| 216 | |
| 217 /** | |
| 218 * DWT based implementation of {@link ITextViewer} and its extension interfaces. | |
| 219 * Once the viewer and its DWT control have been created the viewer can only | |
| 220 * indirectly be disposed by disposing its DWT control. | |
| 221 * <p> | |
| 222 * Clients are supposed to instantiate a text viewer and subsequently to | |
| 223 * communicate with it exclusively using the | |
| 224 * {@link dwtx.jface.text.ITextViewer} interface or any of the | |
| 225 * implemented extension interfaces. | |
| 226 * <p> | |
| 227 * A text viewer serves as text operation target. It only partially supports the | |
| 228 * external control of the enable state of its text operations. A text viewer is | |
| 229 * also a widget token owner. Anything that wants to display an overlay window | |
| 230 * on top of a text viewer should implement the | |
| 231 * {@link dwtx.jface.text.IWidgetTokenKeeper} interface and participate | |
| 232 * in the widget token negotiation between the text viewer and all its potential | |
| 233 * widget token keepers. | |
| 234 * <p> | |
| 235 * This class is not intended to be subclassed outside the JFace Text component.</p> | |
| 236 * @noextend This class is not intended to be subclassed by clients. | |
| 237 */ | |
| 238 public class TextViewer : Viewer , | |
| 239 ITextViewer, ITextViewerExtension, ITextViewerExtension2, ITextViewerExtension4, ITextViewerExtension6, ITextViewerExtension7, ITextViewerExtension8, | |
| 240 IEditingSupportRegistry, ITextOperationTarget, ITextOperationTargetExtension, | |
| 241 IWidgetTokenOwner, IWidgetTokenOwnerExtension, IPostSelectionProvider { | |
| 242 | |
| 243 /** Internal flag to indicate the debug state. */ | |
| 147 | 244 public static const bool TRACE_ERRORS= false; |
| 129 | 245 /** Internal flag to indicate the debug state. */ |
| 147 | 246 private static const bool TRACE_DOUBLE_CLICK= false; |
| 129 | 247 |
| 248 /** | |
| 249 * Width constraint for text hovers (in characters). | |
| 250 * @since 3.4 | |
| 251 */ | |
| 147 | 252 private static const int TEXT_HOVER_WIDTH_CHARS= 100; //used to be 60 (text font) |
| 129 | 253 /** |
| 254 * Height constraint for text hovers (in characters). | |
| 255 * @since 3.4 | |
| 256 */ | |
| 147 | 257 private static const int TEXT_HOVER_HEIGHT_CHARS= 12; //used to be 10 (text font) |
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258 |
| 129 | 259 /** |
| 260 * Represents a replace command that brings the text viewer's text widget | |
| 261 * back in synchronization with text viewer's document after the document | |
| 262 * has been changed. | |
| 263 */ | |
| 264 protected class WidgetCommand { | |
| 265 | |
| 266 /** The document event encapsulated by this command. */ | |
| 267 public DocumentEvent event; | |
| 268 /** The start of the event. */ | |
| 269 public int start; | |
| 270 /** The length of the event. */ | |
| 271 public int length; | |
| 272 /** The inserted and replaced text segments of <code>event</code>. */ | |
| 273 public String text; | |
| 274 /** The replaced text segments of <code>event</code>. */ | |
| 275 public String preservedText; | |
| 276 | |
| 277 /** | |
| 278 * Translates a document event into the presentation coordinates of this text viewer. | |
| 279 * | |
| 280 * @param e the event to be translated | |
| 281 */ | |
| 282 public void setEvent(DocumentEvent e) { | |
| 283 | |
| 284 event= e; | |
| 285 | |
| 286 start= e.getOffset(); | |
| 287 length= e.getLength(); | |
| 288 text= e.getText(); | |
| 289 | |
| 290 if (length !is 0) { | |
| 291 try { | |
| 292 | |
| 138 | 293 if ( cast(SlaveDocumentEvent)e ) { |
| 134 | 294 SlaveDocumentEvent slave= cast(SlaveDocumentEvent) e; |
| 129 | 295 DocumentEvent master= slave.getMasterEvent(); |
| 296 if (master !is null) | |
| 297 preservedText= master.getDocument().get(master.getOffset(), master.getLength()); | |
| 298 } else { | |
| 299 preservedText= e.getDocument().get(e.getOffset(), e.getLength()); | |
| 300 } | |
| 301 | |
| 302 } catch (BadLocationException x) { | |
| 303 preservedText= null; | |
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304 if (TRACE_ERRORS) |
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305 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.WidgetCommand.setEvent")); //$NON-NLS-1$ |
| 129 | 306 } |
| 307 } else | |
| 308 preservedText= null; | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 | |
| 313 /** | |
| 314 * Connects a text double click strategy to this viewer's text widget. | |
| 315 * Calls the double click strategies when the mouse has | |
| 316 * been clicked inside the text editor. | |
| 317 */ | |
| 318 class TextDoubleClickStrategyConnector : MouseAdapter , MovementListener { | |
| 319 | |
| 320 /** Internal flag to remember the last double-click selection. */ | |
| 321 private Point fDoubleClickSelection; | |
| 322 | |
| 323 /* | |
| 324 * @see dwt.events.MouseAdapter#mouseUp(dwt.events.MouseEvent) | |
| 325 * @since 3.2 | |
| 326 */ | |
| 327 public void mouseUp(MouseEvent e) { | |
| 328 fDoubleClickSelection= null; | |
| 329 } | |
| 330 | |
| 331 /* | |
| 332 * @see dwt.custom.MovementListener#getNextOffset(dwt.custom.MovementEvent) | |
| 333 * @since 3.3 | |
| 334 */ | |
| 335 public void getNextOffset(MovementEvent event) { | |
| 336 if (event.movement !is DWT.MOVEMENT_WORD_END) | |
| 337 return; | |
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338 |
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339 if (TRACE_DOUBLE_CLICK) { |
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340 System.out_.println("\n+++"); //$NON-NLS-1$ |
| 129 | 341 print(event); |
| 342 } | |
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343 |
| 129 | 344 if (fDoubleClickSelection !is null) { |
| 345 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 346 event.newOffset= fDoubleClickSelection.y; | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 /* | |
| 351 * @see dwt.custom.MovementListener#getPreviousOffset(dwt.custom.MovementEvent) | |
| 352 * @since 3.3 | |
| 353 */ | |
| 354 public void getPreviousOffset(MovementEvent event) { | |
| 355 if (event.movement !is DWT.MOVEMENT_WORD_START) | |
| 356 return; | |
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357 |
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358 if (TRACE_DOUBLE_CLICK) { |
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359 System.out_.println("\n---"); //$NON-NLS-1$ |
| 129 | 360 print(event); |
| 361 } | |
| 362 if (fDoubleClickSelection is null) { | |
| 134 | 363 ITextDoubleClickStrategy s= cast(ITextDoubleClickStrategy) selectContentTypePlugin(getSelectedRange().x, fDoubleClickStrategies); |
| 129 | 364 if (s !is null) { |
| 365 StyledText textWidget= getTextWidget(); | |
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366 s.doubleClicked(this.outer); |
| 129 | 367 fDoubleClickSelection= textWidget.getSelection(); |
| 368 event.newOffset= fDoubleClickSelection.x; | |
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369 if (TRACE_DOUBLE_CLICK) |
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370 System.out_.println("- setting selection: x= " + fDoubleClickSelection.x + ", y= " + fDoubleClickSelection.y); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 371 } |
| 372 } else { | |
| 373 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 374 event.newOffset= fDoubleClickSelection.x; | |
| 375 } | |
| 376 } | |
| 377 } | |
| 378 | |
| 379 /** | |
| 380 * Print trace info about <code>MovementEvent</code>. | |
|
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381 * |
| 129 | 382 * @param e the event to print |
| 383 * @since 3.3 | |
| 384 */ | |
| 385 private void print(MovementEvent e) { | |
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386 System.out_.println("line offset: " + e.lineOffset); //$NON-NLS-1$ |
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387 System.out_.println("line: " + e.lineText); //$NON-NLS-1$ |
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388 System.out_.println("type: " + e.movement); //$NON-NLS-1$ |
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389 System.out_.println("offset: " + e.offset); //$NON-NLS-1$ |
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|
390 System.out_.println("newOffset: " + e.newOffset); //$NON-NLS-1$ |
| 129 | 391 } |
| 392 | |
| 393 /** | |
| 394 * Monitors the area of the viewer's document that is visible in the viewer. | |
| 395 * If the area might have changed, it informs the text viewer about this | |
| 396 * potential change and its origin. The origin is internally used for optimization | |
| 397 * purposes. | |
| 398 */ | |
| 399 class ViewportGuard : MouseAdapter | |
| 400 , ControlListener, KeyListener, SelectionListener { | |
| 401 | |
| 402 /* | |
| 403 * @see ControlListener#controlResized(ControlEvent) | |
| 404 */ | |
| 405 public void controlResized(ControlEvent e) { | |
| 406 updateViewportListeners(RESIZE); | |
| 407 } | |
| 408 | |
| 409 /* | |
| 410 * @see ControlListener#controlMoved(ControlEvent) | |
| 411 */ | |
| 412 public void controlMoved(ControlEvent e) { | |
| 413 } | |
| 414 | |
| 415 /* | |
| 416 * @see KeyListener#keyReleased | |
| 417 */ | |
| 418 public void keyReleased(KeyEvent e) { | |
| 419 updateViewportListeners(KEY); | |
| 420 } | |
| 421 | |
| 422 /* | |
| 423 * @see KeyListener#keyPressed | |
| 424 */ | |
| 425 public void keyPressed(KeyEvent e) { | |
| 426 updateViewportListeners(KEY); | |
| 427 } | |
| 428 | |
| 429 /* | |
| 430 * @see MouseListener#mouseUp | |
| 431 */ | |
| 432 public void mouseUp(MouseEvent e) { | |
| 433 if (fTextWidget !is null) | |
| 434 fTextWidget.removeSelectionListener(this); | |
| 435 updateViewportListeners(MOUSE_END); | |
| 436 } | |
| 437 | |
| 438 /* | |
| 439 * @see MouseListener#mouseDown | |
| 440 */ | |
| 441 public void mouseDown(MouseEvent e) { | |
| 442 if (fTextWidget !is null) | |
| 443 fTextWidget.addSelectionListener(this); | |
| 444 } | |
| 445 | |
| 446 /* | |
| 447 * @see SelectionListener#widgetSelected | |
| 448 */ | |
| 449 public void widgetSelected(SelectionEvent e) { | |
| 450 if (e.widget is fScroller) | |
| 451 updateViewportListeners(SCROLLER); | |
| 452 else | |
| 453 updateViewportListeners(MOUSE); | |
| 454 } | |
| 455 | |
| 456 /* | |
| 457 * @see SelectionListener#widgetDefaultSelected | |
| 458 */ | |
| 459 public void widgetDefaultSelected(SelectionEvent e) {} | |
| 460 } | |
| 461 | |
| 462 /** | |
| 463 * This position updater is used to keep the selection during text shift operations. | |
| 464 */ | |
| 465 static class ShiftPositionUpdater : DefaultPositionUpdater { | |
| 466 | |
| 467 /** | |
| 468 * Creates the position updater for the given category. | |
| 469 * | |
| 470 * @param category the category this updater takes care of | |
| 471 */ | |
|
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472 protected this(String category) { |
| 129 | 473 super(category); |
| 474 } | |
| 475 | |
| 476 /** | |
| 477 * If an insertion happens at the selection's start offset, | |
| 478 * the position is extended rather than shifted. | |
| 479 */ | |
| 480 protected void adaptToInsert() { | |
| 481 | |
| 482 int myStart= fPosition.offset; | |
| 483 int myEnd= fPosition.offset + fPosition.length -1; | |
| 484 myEnd= Math.max(myStart, myEnd); | |
| 485 | |
| 486 int yoursStart= fOffset; | |
| 487 int yoursEnd= fOffset + fReplaceLength -1; | |
| 488 yoursEnd= Math.max(yoursStart, yoursEnd); | |
| 489 | |
| 490 if (myEnd < yoursStart) | |
| 491 return; | |
| 492 | |
| 493 if (myStart <= yoursStart) { | |
| 494 fPosition.length += fReplaceLength; | |
| 495 return; | |
| 496 } | |
| 497 | |
| 498 if (myStart > yoursStart) | |
| 499 fPosition.offset += fReplaceLength; | |
| 500 } | |
| 501 } | |
| 502 | |
| 503 /** | |
| 504 * Internal document listener on the visible document. | |
| 505 */ | |
| 506 class VisibleDocumentListener : IDocumentListener { | |
| 507 | |
| 508 /* | |
| 509 * @see IDocumentListener#documentAboutToBeChanged | |
| 510 */ | |
| 511 public void documentAboutToBeChanged(DocumentEvent e) { | |
| 512 if (e.getDocument() is getVisibleDocument()) | |
| 513 fWidgetCommand.setEvent(e); | |
| 514 handleVisibleDocumentAboutToBeChanged(e); | |
| 515 } | |
| 516 | |
| 517 /* | |
| 518 * @see IDocumentListener#documentChanged | |
| 519 */ | |
| 520 public void documentChanged(DocumentEvent e) { | |
| 521 if (fWidgetCommand.event is e) | |
| 522 updateTextListeners(fWidgetCommand); | |
| 523 fLastSentSelectionChange= null; | |
| 524 handleVisibleDocumentChanged(e); | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 /** | |
| 529 * Internal verify listener. | |
| 530 */ | |
| 531 class TextVerifyListener : VerifyListener { | |
| 532 | |
| 533 /** | |
| 534 * Indicates whether verify events are forwarded or ignored. | |
| 535 * @since 2.0 | |
| 536 */ | |
| 537 private bool fForward= true; | |
| 538 | |
| 539 /** | |
| 540 * Tells the listener to forward received events. | |
| 541 * | |
| 542 * @param forward <code>true</code> if forwarding should be enabled. | |
| 543 * @since 2.0 | |
| 544 */ | |
| 545 public void forward(bool forward) { | |
| 546 fForward= forward; | |
| 547 } | |
| 548 | |
| 549 /* | |
| 550 * @see VerifyListener#verifyText(VerifyEvent) | |
| 551 */ | |
| 552 public void verifyText(VerifyEvent e) { | |
| 553 if (fForward) | |
| 554 handleVerifyEvent(e); | |
| 555 } | |
| 556 } | |
| 557 | |
| 558 /** | |
| 559 * The viewer's manager responsible for registered verify key listeners. | |
| 560 * Uses batches rather than robust iterators because of performance issues. | |
| 561 * <p> | |
| 562 * The implementation is reentrant, i.e. installed listeners may trigger | |
| 563 * further <code>VerifyKeyEvent</code>s that may cause other listeners to be | |
| 564 * installed, but not thread safe. | |
| 565 * </p> | |
| 566 * @since 2.0 | |
| 567 */ | |
| 568 class VerifyKeyListenersManager : VerifyKeyListener { | |
| 569 | |
| 570 /** | |
| 571 * Represents a batched addListener/removeListener command. | |
| 572 */ | |
| 573 class Batch { | |
| 574 /** The index at which to insert the listener. */ | |
| 575 int index; | |
| 576 /** The listener to be inserted. */ | |
| 577 VerifyKeyListener listener; | |
| 578 | |
| 579 /** | |
| 580 * Creates a new batch containing the given listener for the given index. | |
| 581 * | |
| 582 * @param l the listener to be added | |
| 583 * @param i the index at which to insert the listener | |
| 584 */ | |
|
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585 public this(VerifyKeyListener l, int i) { |
| 129 | 586 listener= l; |
| 587 index= i; | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 /** List of registered verify key listeners. */ | |
| 592 private List fListeners= new ArrayList(); | |
| 593 /** List of pending batches. */ | |
| 594 private List fBatched= new ArrayList(); | |
| 595 /** The reentrance count. */ | |
| 596 private int fReentranceCount= 0; | |
| 597 | |
| 598 /* | |
| 599 * @see VerifyKeyListener#verifyKey(VerifyEvent) | |
| 600 */ | |
| 601 public void verifyKey(VerifyEvent event) { | |
| 602 if (fListeners.isEmpty()) | |
| 603 return; | |
| 604 | |
| 605 try { | |
| 606 fReentranceCount++; | |
| 607 Iterator iterator= fListeners.iterator(); | |
| 608 while (iterator.hasNext() && event.doit) { | |
| 134 | 609 VerifyKeyListener listener= cast(VerifyKeyListener) iterator.next(); |
| 129 | 610 listener.verifyKey(event); // we might trigger reentrant calls on GTK |
| 611 } | |
| 612 } finally { | |
| 613 fReentranceCount--; | |
| 614 } | |
| 615 if (fReentranceCount is 0) | |
| 616 processBatchedRequests(); | |
| 617 } | |
| 618 | |
| 619 /** | |
| 620 * Processes the pending batched requests. | |
| 621 */ | |
| 622 private void processBatchedRequests() { | |
| 623 if (!fBatched.isEmpty()) { | |
| 624 Iterator e= fBatched.iterator(); | |
| 625 while (e.hasNext()) { | |
| 134 | 626 Batch batch= cast(Batch) e.next(); |
| 129 | 627 insertListener(batch.listener, batch.index); |
| 628 } | |
| 629 fBatched.clear(); | |
| 630 } | |
| 631 } | |
| 632 | |
| 633 /** | |
| 634 * Returns the number of registered verify key listeners. | |
| 635 * | |
| 636 * @return the number of registered verify key listeners | |
| 637 */ | |
| 638 public int numberOfListeners() { | |
| 639 return fListeners.size(); | |
| 640 } | |
| 641 | |
| 642 /** | |
| 643 * Inserts the given listener at the given index or moves it | |
| 644 * to that index. | |
| 645 * | |
| 646 * @param listener the listener to be inserted | |
| 647 * @param index the index of the listener or -1 for remove | |
| 648 */ | |
| 649 public void insertListener(VerifyKeyListener listener, int index) { | |
| 650 | |
| 651 if (index is -1) { | |
| 652 removeListener(listener); | |
| 653 } else if (listener !is null) { | |
| 654 | |
| 655 if (fReentranceCount > 0) { | |
| 656 | |
| 657 fBatched.add(new Batch(listener, index)); | |
| 658 | |
| 659 } else { | |
| 660 | |
| 661 int idx= -1; | |
| 662 | |
| 663 // find index based on identity | |
| 664 int size= fListeners.size(); | |
| 665 for (int i= 0; i < size; i++) { | |
| 666 if (listener is fListeners.get(i)) { | |
| 667 idx= i; | |
| 668 break; | |
| 669 } | |
| 670 } | |
| 671 | |
| 672 // move or add it | |
| 673 if (idx !is index) { | |
| 674 | |
| 675 if (idx !is -1) | |
| 676 fListeners.remove(idx); | |
| 677 | |
| 678 if (index > fListeners.size()) | |
| 679 fListeners.add(listener); | |
| 680 else | |
| 681 fListeners.add(index, listener); | |
| 682 } | |
| 683 | |
| 684 if (size is 0) // checking old size, i.e. current size is size + 1 | |
| 685 install(); | |
| 686 } | |
| 687 } | |
| 688 } | |
| 689 | |
| 690 /** | |
| 691 * Removes the given listener. | |
| 692 * | |
| 693 * @param listener the listener to be removed | |
| 694 */ | |
| 695 public void removeListener(VerifyKeyListener listener) { | |
| 696 if (listener is null) | |
| 697 return; | |
| 698 | |
| 699 if (fReentranceCount > 0) { | |
| 700 | |
| 701 fBatched.add(new Batch(listener, -1)); | |
| 702 | |
| 703 } else { | |
| 704 | |
| 705 int size= fListeners.size(); | |
| 706 for (int i= 0; i < size; i++) { | |
| 707 if (listener is fListeners.get(i)) { | |
| 708 fListeners.remove(i); | |
| 709 if (size is 1) // checking old size, i.e. current size is size - 1 | |
| 710 uninstall(); | |
| 711 return; | |
| 712 } | |
| 713 } | |
| 714 } | |
| 715 } | |
| 716 | |
| 717 /** | |
| 718 * Installs this manager. | |
| 719 */ | |
| 720 private void install() { | |
| 721 StyledText textWidget= getTextWidget(); | |
| 722 if (textWidget !is null && !textWidget.isDisposed()) | |
| 723 textWidget.addVerifyKeyListener(this); | |
| 724 } | |
| 725 | |
| 726 /** | |
| 727 * Uninstalls this manager. | |
| 728 */ | |
| 729 private void uninstall() { | |
| 730 StyledText textWidget= getTextWidget(); | |
| 731 if (textWidget !is null && !textWidget.isDisposed()) | |
| 732 textWidget.removeVerifyKeyListener(this); | |
| 733 } | |
| 734 } | |
| 735 | |
| 736 | |
| 737 /** | |
| 738 * Reification of a range in which a find replace operation is performed. This range is visually | |
| 739 * highlighted in the viewer as long as the replace operation is in progress. | |
| 740 * | |
| 741 * @since 2.0 | |
| 742 */ | |
| 743 class FindReplaceRange : LineBackgroundListener, ITextListener, IPositionUpdater { | |
| 744 | |
| 745 /** Internal name for the position category used to update the range. */ | |
| 146 | 746 private const static String RANGE_CATEGORY= "dwtx.jface.text.TextViewer.find.range"; //$NON-NLS-1$ |
| 129 | 747 |
| 748 /** The highlight color of this range. */ | |
| 749 private Color fHighlightColor; | |
| 750 /** The position used to lively update this range's extent. */ | |
| 751 private Position fPosition; | |
| 752 | |
| 753 /** Creates a new find/replace range with the given extent. | |
| 754 * | |
| 755 * @param range the extent of this range | |
| 756 */ | |
|
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|
757 public this(IRegion range) { |
| 129 | 758 setRange(range); |
| 759 } | |
| 760 | |
| 761 /** | |
| 762 * Sets the extent of this range. | |
| 763 * | |
| 764 * @param range the extent of this range | |
| 765 */ | |
| 766 public void setRange(IRegion range) { | |
| 767 fPosition= new Position(range.getOffset(), range.getLength()); | |
| 768 } | |
| 769 | |
| 770 /** | |
| 771 * Returns the extent of this range. | |
| 772 * | |
| 773 * @return the extent of this range | |
| 774 */ | |
| 775 public IRegion getRange() { | |
| 776 return new Region(fPosition.getOffset(), fPosition.getLength()); | |
| 777 } | |
| 778 | |
| 779 /** | |
| 780 * Sets the highlight color of this range. Causes the range to be redrawn. | |
| 781 * | |
| 782 * @param color the highlight color | |
| 783 */ | |
| 784 public void setHighlightColor(Color color) { | |
| 785 fHighlightColor= color; | |
| 786 paint(); | |
| 787 } | |
| 788 | |
| 789 /* | |
| 790 * @see LineBackgroundListener#lineGetBackground(LineBackgroundEvent) | |
| 791 * @since 2.0 | |
| 792 */ | |
| 793 public void lineGetBackground(LineBackgroundEvent event) { | |
| 794 /* Don't use cached line information because of patched redrawing events. */ | |
| 795 | |
| 796 if (fTextWidget !is null) { | |
| 797 int offset= widgetOffset2ModelOffset(event.lineOffset); | |
| 798 if (fPosition.includes(offset)) | |
| 799 event.lineBackground= fHighlightColor; | |
| 800 } | |
| 801 } | |
| 802 | |
| 803 /** | |
| 804 * Installs this range. The range registers itself as background | |
| 805 * line painter and text listener. Also, it creates a category with the | |
| 806 * viewer's document to maintain its own extent. | |
| 807 */ | |
| 808 public void install() { | |
| 137 | 809 this.outer.addTextListener(this); |
| 129 | 810 fTextWidget.addLineBackgroundListener(this); |
| 811 | |
| 137 | 812 IDocument document= this.outer.getDocument(); |
| 129 | 813 try { |
| 814 document.addPositionCategory(RANGE_CATEGORY); | |
| 815 document.addPosition(RANGE_CATEGORY, fPosition); | |
| 816 document.addPositionUpdater(this); | |
| 817 } catch (BadPositionCategoryException e) { | |
| 818 // should not happen | |
| 819 } catch (BadLocationException e) { | |
| 820 // should not happen | |
| 821 } | |
| 822 | |
| 823 paint(); | |
| 824 } | |
| 825 | |
| 826 /** | |
| 827 * Uninstalls this range. | |
| 828 * @see #install() | |
| 829 */ | |
| 830 public void uninstall() { | |
| 831 | |
| 832 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=19612 | |
| 833 | |
| 137 | 834 IDocument document= this.outer.getDocument(); |
| 129 | 835 if (document !is null) { |
| 836 document.removePositionUpdater(this); | |
| 837 document.removePosition(fPosition); | |
| 838 } | |
| 839 | |
| 840 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 841 fTextWidget.removeLineBackgroundListener(this); | |
| 842 | |
| 137 | 843 this.outer.removeTextListener(this); |
| 129 | 844 |
| 845 clear(); | |
| 846 } | |
| 847 | |
| 848 /** | |
| 849 * Clears the highlighting of this range. | |
| 850 */ | |
| 851 private void clear() { | |
| 852 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 853 fTextWidget.redraw(); | |
| 854 } | |
| 855 | |
| 856 /** | |
| 857 * Paints the highlighting of this range. | |
| 858 */ | |
| 859 private void paint() { | |
| 860 | |
| 861 IRegion widgetRegion= modelRange2WidgetRange(fPosition); | |
| 862 int offset= widgetRegion.getOffset(); | |
| 863 int length= widgetRegion.getLength(); | |
| 864 | |
| 865 int count= fTextWidget.getCharCount(); | |
| 866 if (offset + length >= count) { | |
| 867 length= count - offset; // clip | |
| 868 | |
| 869 Point upperLeft= fTextWidget.getLocationAtOffset(offset); | |
| 870 Point lowerRight= fTextWidget.getLocationAtOffset(offset + length); | |
| 871 int width= fTextWidget.getClientArea().width; | |
| 872 int height= fTextWidget.getLineHeight(offset + length) + lowerRight.y - upperLeft.y; | |
| 873 fTextWidget.redraw(upperLeft.x, upperLeft.y, width, height, false); | |
| 874 } | |
| 875 | |
| 876 fTextWidget.redrawRange(offset, length, true); | |
| 877 } | |
| 878 | |
| 879 /* | |
| 880 * @see ITextListener#textChanged(TextEvent) | |
| 881 * @since 2.0 | |
| 882 */ | |
| 883 public void textChanged(TextEvent event) { | |
| 884 if (event.getViewerRedrawState()) | |
| 885 paint(); | |
| 886 } | |
| 887 | |
| 888 /* | |
| 889 * @see IPositionUpdater#update(DocumentEvent) | |
| 890 * @since 2.0 | |
| 891 */ | |
| 892 public void update(DocumentEvent event) { | |
| 893 int offset= event.getOffset(); | |
| 894 int length= event.getLength(); | |
| 895 int delta= event.getText().length() - length; | |
| 896 | |
| 897 if (offset < fPosition.getOffset()) | |
| 898 fPosition.setOffset(fPosition.getOffset() + delta); | |
| 899 else if (offset < fPosition.getOffset() + fPosition.getLength()) | |
| 900 fPosition.setLength(fPosition.getLength() + delta); | |
| 901 } | |
| 902 } | |
| 903 | |
| 904 /** | |
| 905 * This viewer's find/replace target. | |
| 906 */ | |
| 907 class FindReplaceTarget : IFindReplaceTarget, IFindReplaceTargetExtension, IFindReplaceTargetExtension3 { | |
| 908 | |
| 909 /** The range for this target. */ | |
| 910 private FindReplaceRange fRange; | |
| 911 /** The highlight color of the range of this target. */ | |
| 912 private Color fScopeHighlightColor; | |
| 913 /** The document partitioner remembered in case of a "Replace All". */ | |
| 914 private Map fRememberedPartitioners; | |
| 915 /** | |
| 916 * The active rewrite session. | |
| 917 * @since 3.1 | |
| 918 */ | |
| 919 private DocumentRewriteSession fRewriteSession; | |
| 920 | |
| 921 /* | |
| 922 * @see IFindReplaceTarget#getSelectionText() | |
| 923 */ | |
| 924 public String getSelectionText() { | |
| 137 | 925 Point s= this.outer.getSelectedRange(); |
| 129 | 926 if (s.x > -1 && s.y > -1) { |
| 927 try { | |
| 137 | 928 IDocument document= this.outer.getDocument(); |
| 129 | 929 return document.get(s.x, s.y); |
| 930 } catch (BadLocationException x) { | |
| 931 } | |
| 932 } | |
| 933 return ""; //$NON-NLS-1$ | |
| 934 } | |
| 935 | |
| 936 /* | |
| 937 * @see IFindReplaceTarget#replaceSelection(String) | |
| 938 */ | |
| 939 public void replaceSelection(String text) { | |
| 940 replaceSelection(text, false); | |
| 941 } | |
| 942 | |
| 943 /* | |
| 944 * @see IFindReplaceTarget#replaceSelection(String) | |
| 945 */ | |
| 946 public void replaceSelection(String text, bool regExReplace) { | |
| 137 | 947 Point s= this.outer.getSelectedRange(); |
| 129 | 948 if (s.x > -1 && s.y > -1) { |
| 949 try { | |
| 137 | 950 IRegion matchRegion= this.outer.getFindReplaceDocumentAdapter().replace(text, regExReplace); |
| 129 | 951 int length= -1; |
| 952 if (matchRegion !is null) | |
| 953 length= matchRegion.getLength(); | |
| 954 | |
| 955 if (text !is null && length > 0) | |
| 137 | 956 this.outer.setSelectedRange(s.x, length); |
| 129 | 957 } catch (BadLocationException x) { |
| 958 } | |
| 959 } | |
| 960 } | |
| 961 | |
| 962 /* | |
| 963 * @see IFindReplaceTarget#isEditable() | |
| 964 */ | |
| 965 public bool isEditable() { | |
| 137 | 966 return this.outer.isEditable(); |
| 129 | 967 } |
| 968 | |
| 969 /* | |
| 970 * @see IFindReplaceTarget#getSelection() | |
| 971 */ | |
| 972 public Point getSelection() { | |
| 137 | 973 Point modelSelection= this.outer.getSelectedRange(); |
| 129 | 974 Point widgetSelection= modelSelection2WidgetSelection(modelSelection); |
| 975 return widgetSelection !is null ? widgetSelection : new Point(-1, -1); | |
| 976 } | |
| 977 | |
| 978 /* | |
| 979 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 980 */ | |
| 981 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord) { | |
| 982 try { | |
| 983 return findAndSelect(widgetOffset, findString, searchForward, caseSensitive, wholeWord, false); | |
| 984 } catch (PatternSyntaxException x) { | |
| 985 return -1; | |
| 986 } | |
| 987 } | |
| 988 | |
| 989 /* | |
| 990 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 991 */ | |
| 992 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 993 | |
| 994 int modelOffset= widgetOffset is -1 ? -1 : widgetOffset2ModelOffset(widgetOffset); | |
| 995 | |
| 996 if (fRange !is null) { | |
| 997 IRegion range= fRange.getRange(); | |
| 137 | 998 modelOffset= this.outer.findAndSelectInRange(modelOffset, findString, searchForward, caseSensitive, wholeWord, range.getOffset(), range.getLength(), regExSearch); |
| 129 | 999 } else { |
| 137 | 1000 modelOffset= this.outer.findAndSelect(modelOffset, findString, searchForward, caseSensitive, wholeWord, regExSearch); |
| 129 | 1001 } |
| 1002 | |
| 1003 widgetOffset= modelOffset is -1 ? -1 : modelOffset2WidgetOffset(modelOffset); | |
| 1004 return widgetOffset; | |
| 1005 } | |
| 1006 | |
| 1007 /* | |
| 1008 * @see IFindReplaceTarget#canPerformFind() | |
| 1009 */ | |
| 1010 public bool canPerformFind() { | |
| 137 | 1011 return this.outer.canPerformFind(); |
| 129 | 1012 } |
| 1013 | |
| 1014 /* | |
| 1015 * @see IFindReplaceTargetExtension#beginSession() | |
| 1016 * @since 2.0 | |
| 1017 */ | |
| 1018 public void beginSession() { | |
| 1019 fRange= null; | |
| 1020 } | |
| 1021 | |
| 1022 /* | |
| 1023 * @see IFindReplaceTargetExtension#endSession() | |
| 1024 * @since 2.0 | |
| 1025 */ | |
| 1026 public void endSession() { | |
| 1027 if (fRange !is null) { | |
| 1028 fRange.uninstall(); | |
| 1029 fRange= null; | |
| 1030 } | |
| 1031 } | |
| 1032 | |
| 1033 /* | |
| 1034 * @see IFindReplaceTargetExtension#getScope() | |
| 1035 * @since 2.0 | |
| 1036 */ | |
| 1037 public IRegion getScope() { | |
| 1038 return fRange is null ? null : fRange.getRange(); | |
| 1039 } | |
| 1040 | |
| 1041 /* | |
| 1042 * @see IFindReplaceTargetExtension#getLineSelection() | |
| 1043 * @since 2.0 | |
| 1044 */ | |
| 1045 public Point getLineSelection() { | |
| 137 | 1046 Point point= this.outer.getSelectedRange(); |
| 129 | 1047 |
| 1048 try { | |
| 137 | 1049 IDocument document= this.outer.getDocument(); |
| 129 | 1050 |
| 1051 // beginning of line | |
| 1052 int line= document.getLineOfOffset(point.x); | |
| 1053 int offset= document.getLineOffset(line); | |
| 1054 | |
| 1055 // end of line | |
| 1056 IRegion lastLineInfo= document.getLineInformationOfOffset(point.x + point.y); | |
| 1057 int lastLine= document.getLineOfOffset(point.x + point.y); | |
| 1058 int length; | |
| 1059 if (lastLineInfo.getOffset() is point.x + point.y && lastLine > 0) | |
| 1060 length= document.getLineOffset(lastLine - 1) + document.getLineLength(lastLine - 1) - offset; | |
| 1061 else | |
| 1062 length= lastLineInfo.getOffset() + lastLineInfo.getLength() - offset; | |
| 1063 | |
| 1064 return new Point(offset, length); | |
| 1065 | |
| 1066 } catch (BadLocationException e) { | |
| 1067 // should not happen | |
| 1068 return new Point(point.x, 0); | |
| 1069 } | |
| 1070 } | |
| 1071 | |
| 1072 /* | |
| 1073 * @see IFindReplaceTargetExtension#setSelection(int, int) | |
| 1074 * @since 2.0 | |
| 1075 */ | |
| 1076 public void setSelection(int modelOffset, int modelLength) { | |
| 137 | 1077 this.outer.setSelectedRange(modelOffset, modelLength); |
| 129 | 1078 } |
| 1079 | |
| 1080 /* | |
| 1081 * @see IFindReplaceTargetExtension#setScope(IRegion) | |
| 1082 * @since 2.0 | |
| 1083 */ | |
|
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1084 public void setScope(IRegion scope_) { |
| 129 | 1085 if (fRange !is null) |
| 1086 fRange.uninstall(); | |
| 1087 | |
|
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1088 if (scope_ is null) { |
| 129 | 1089 fRange= null; |
| 1090 return; | |
| 1091 } | |
| 1092 | |
|
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1093 fRange= new FindReplaceRange(scope_); |
| 129 | 1094 fRange.setHighlightColor(fScopeHighlightColor); |
| 1095 fRange.install(); | |
| 1096 } | |
| 1097 | |
| 1098 /* | |
| 1099 * @see IFindReplaceTargetExtension#setScopeHighlightColor(Color) | |
| 1100 * @since 2.0 | |
| 1101 */ | |
| 1102 public void setScopeHighlightColor(Color color) { | |
| 1103 if (fRange !is null) | |
| 1104 fRange.setHighlightColor(color); | |
| 1105 fScopeHighlightColor= color; | |
| 1106 } | |
| 1107 | |
| 1108 /* | |
| 1109 * @see IFindReplaceTargetExtension#setReplaceAllMode(bool) | |
| 1110 * @since 2.0 | |
| 1111 */ | |
| 1112 public void setReplaceAllMode(bool replaceAll) { | |
| 1113 | |
| 1114 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=18232 | |
| 1115 | |
| 137 | 1116 IDocument document= this.outer.getDocument(); |
| 129 | 1117 |
| 1118 if (replaceAll) { | |
| 1119 | |
| 138 | 1120 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1121 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1122 fRewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 1123 } else { | |
| 137 | 1124 this.outer.setRedraw(false); |
| 1125 this.outer.startSequentialRewriteMode(false); | |
| 129 | 1126 |
| 1127 if (fUndoManager !is null) | |
| 1128 fUndoManager.beginCompoundChange(); | |
| 1129 | |
| 1130 fRememberedPartitioners= TextUtilities.removeDocumentPartitioners(document); | |
| 1131 } | |
| 1132 | |
| 1133 } else { | |
| 1134 | |
| 138 | 1135 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1136 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1137 extension.stopRewriteSession(fRewriteSession); |
| 1138 } else { | |
| 137 | 1139 this.outer.setRedraw(true); |
| 1140 this.outer.stopSequentialRewriteMode(); | |
| 129 | 1141 |
| 1142 if (fUndoManager !is null) | |
| 1143 fUndoManager.endCompoundChange(); | |
| 1144 | |
| 1145 if (fRememberedPartitioners !is null) | |
| 1146 TextUtilities.addDocumentPartitioners(document, fRememberedPartitioners); | |
| 1147 } | |
| 1148 } | |
| 1149 } | |
| 1150 } | |
| 1151 | |
| 1152 | |
| 1153 /** | |
| 1154 * The viewer's rewrite target. | |
| 1155 * @since 2.0 | |
| 1156 */ | |
| 1157 class RewriteTarget : IRewriteTarget { | |
| 1158 | |
| 1159 /* | |
| 1160 * @see dwtx.jface.text.IRewriteTarget#beginCompoundChange() | |
| 1161 */ | |
| 1162 public void beginCompoundChange() { | |
| 1163 if (fUndoManager !is null) | |
| 1164 fUndoManager.beginCompoundChange(); | |
| 1165 } | |
| 1166 | |
| 1167 /* | |
| 1168 * @see dwtx.jface.text.IRewriteTarget#endCompoundChange() | |
| 1169 */ | |
| 1170 public void endCompoundChange() { | |
| 1171 if (fUndoManager !is null) | |
| 1172 fUndoManager.endCompoundChange(); | |
| 1173 } | |
| 1174 | |
| 1175 /* | |
| 1176 * @see dwtx.jface.text.IRewriteTarget#getDocument() | |
| 1177 */ | |
| 1178 public IDocument getDocument() { | |
| 137 | 1179 return this.outer.getDocument(); |
| 129 | 1180 } |
| 1181 | |
| 1182 /* | |
| 1183 * @see dwtx.jface.text.IRewriteTarget#setRedraw(bool) | |
| 1184 */ | |
| 1185 public void setRedraw(bool redraw) { | |
| 137 | 1186 this.outer.setRedraw(redraw); |
| 129 | 1187 } |
| 1188 } | |
| 1189 | |
| 1190 /** | |
| 1191 * Value object used as key in the text hover configuration table. It is | |
| 1192 * modifiable only inside this compilation unit to allow the reuse of created | |
| 1193 * objects for efficiency reasons | |
| 1194 * | |
| 1195 * @since 2.1 | |
| 1196 */ | |
| 1197 protected class TextHoverKey { | |
| 1198 | |
| 1199 /** The content type this key belongs to */ | |
| 1200 private String fContentType; | |
| 1201 /** The state mask */ | |
| 1202 private int fStateMask; | |
| 1203 | |
| 1204 /** | |
| 1205 * Creates a new text hover key for the given content type and state mask. | |
| 1206 * | |
| 1207 * @param contentType the content type | |
| 1208 * @param stateMask the state mask | |
| 1209 */ | |
|
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1210 protected this(String contentType, int stateMask) { |
| 129 | 1211 Assert.isNotNull(contentType); |
| 1212 fContentType= contentType; | |
| 1213 fStateMask= stateMask; | |
| 1214 } | |
| 1215 | |
| 1216 /* | |
| 1217 * @see java.lang.Object#equals(java.lang.Object) | |
| 1218 */ | |
| 1219 public bool equals(Object obj) { | |
| 1220 if (obj is null || obj.getClass() !is getClass()) | |
| 1221 return false; | |
| 134 | 1222 TextHoverKey textHoverKey= cast(TextHoverKey)obj; |
| 129 | 1223 return textHoverKey.fContentType.equals(fContentType) && textHoverKey.fStateMask is fStateMask; |
| 1224 } | |
| 1225 | |
| 1226 /* | |
| 1227 * @see java.lang.Object#hashCode() | |
| 1228 */ | |
| 1229 public int hashCode() { | |
| 1230 return fStateMask << 16 | fContentType.hashCode(); | |
| 1231 } | |
| 1232 | |
| 1233 /** | |
| 1234 * Sets the state mask of this text hover key. | |
| 1235 * | |
| 1236 * @param stateMask the state mask | |
| 1237 */ | |
| 1238 private void setStateMask(int stateMask) { | |
| 1239 fStateMask= stateMask; | |
| 1240 } | |
| 1241 } | |
|
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1242 |
| 129 | 1243 /** |
| 1244 * Captures and remembers the viewer state (selection and visual position). {@link TextViewer.ViewerState} | |
| 1245 * instances are normally used once and then discarded, similar to the following snippet: | |
| 1246 * <pre> | |
| 1247 * ViewerState state= new ViewerState(); // remember the state | |
| 1248 * doStuff(); // operation that may call setRedraw() and perform complex document modifications | |
| 1249 * state.restore(true); // restore the remembered state | |
| 1250 * </pre> | |
|
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1251 * |
| 129 | 1252 * @since 3.3 |
| 1253 */ | |
| 1254 private final class ViewerState { | |
| 1255 /** The position tracking the selection. */ | |
| 1256 private Position fSelection; | |
| 1257 /** <code>true</code> if {@link #fSelection} was originally backwards. */ | |
| 1258 private bool fReverseSelection; | |
| 1259 /** <code>true</code> if the selection has been updated while in redraw(off) mode. */ | |
| 1260 private bool fSelectionSet; | |
| 1261 /** The position tracking the visually stable line. */ | |
| 1262 private Position fStableLine; | |
| 1263 /** The pixel offset of the stable line measured from the client area. */ | |
| 1264 private int fStablePixel; | |
| 1265 | |
| 1266 /** The position updater for {@link #fSelection} and {@link #fStableLine}. */ | |
| 1267 private IPositionUpdater fUpdater; | |
| 1268 /** The document that the position updater and the positions are registered with. */ | |
| 1269 private IDocument fUpdaterDocument; | |
| 1270 /** The position category used by {@link #fUpdater}. */ | |
| 1271 private String fUpdaterCategory; | |
| 1272 | |
| 1273 /** | |
| 1274 * Creates a new viewer state instance and connects it to the current document. | |
| 1275 */ | |
|
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1276 public this() { |
| 129 | 1277 IDocument document= getDocument(); |
| 1278 if (document !is null) | |
| 1279 connect(document); | |
| 1280 } | |
| 1281 | |
| 1282 /** | |
| 1283 * Returns the normalized selection, i.e. the the selection length is always non-negative. | |
|
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1284 * |
| 129 | 1285 * @return the normalized selection |
| 1286 */ | |
| 1287 public Point getSelection() { | |
| 1288 if (fSelection is null) | |
| 1289 return new Point(-1, -1); | |
| 1290 return new Point(fSelection.getOffset(), fSelection.getLength()); | |
| 1291 } | |
| 1292 | |
| 1293 /** | |
| 1294 * Updates the selection. | |
|
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1295 * |
| 129 | 1296 * @param offset the new selection offset |
| 1297 * @param length the new selection length | |
| 1298 */ | |
| 1299 public void updateSelection(int offset, int length) { | |
| 1300 fSelectionSet= true; | |
| 1301 if (fSelection is null) | |
| 1302 fSelection= new Position(offset, length); | |
| 1303 else | |
| 1304 updatePosition(fSelection, offset, length); | |
| 1305 } | |
| 1306 | |
| 1307 /** | |
| 1308 * Restores the state and disconnects it from the document. The selection is no longer | |
| 1309 * tracked after this call. | |
|
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1310 * |
| 129 | 1311 * @param restoreViewport <code>true</code> to restore both selection and viewport, |
| 1312 * <code>false</code> to only restore the selection | |
| 1313 */ | |
| 1314 public void restore(bool restoreViewport) { | |
| 1315 if (isConnected()) | |
| 1316 disconnect(); | |
| 1317 if (fSelection !is null) { | |
| 1318 int offset= fSelection.getOffset(); | |
| 1319 int length= fSelection.getLength(); | |
| 1320 if (fReverseSelection) { | |
| 1321 offset-= length; | |
| 1322 length= -length; | |
| 1323 } | |
| 1324 setSelectedRange(offset, length); | |
| 1325 if (restoreViewport) | |
| 1326 updateViewport(); | |
| 1327 } | |
| 1328 } | |
| 1329 | |
| 1330 /** | |
| 1331 * Updates the viewport, trying to keep the | |
| 1332 * {@linkplain StyledText#getLinePixel(int) line pixel} of the caret line stable. If the | |
| 1333 * selection has been updated while in redraw(false) mode, the new selection is revealed. | |
| 1334 */ | |
| 1335 private void updateViewport() { | |
| 1336 if (fSelectionSet) { | |
| 1337 revealRange(fSelection.getOffset(), fSelection.getLength()); | |
| 1338 } else if (fStableLine !is null) { | |
| 1339 int stableLine; | |
| 1340 try { | |
| 1341 stableLine= fUpdaterDocument.getLineOfOffset(fStableLine.getOffset()); | |
| 1342 } catch (BadLocationException x) { | |
| 1343 // ignore and return silently | |
| 1344 return; | |
| 1345 } | |
| 1346 int stableWidgetLine= getClosestWidgetLineForModelLine(stableLine); | |
| 1347 if (stableWidgetLine is -1) | |
| 1348 return; | |
| 1349 int linePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1350 int delta= fStablePixel - linePixel; | |
| 1351 int topPixel= getTextWidget().getTopPixel(); | |
| 1352 getTextWidget().setTopPixel(topPixel - delta); | |
| 1353 } | |
| 1354 } | |
| 1355 | |
| 1356 /** | |
| 1357 * Remembers the viewer state. | |
|
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1358 * |
| 129 | 1359 * @param document the document to remember the state of |
| 1360 */ | |
| 1361 private void connect(IDocument document) { | |
| 1362 Assert.isLegal(document !is null); | |
| 1363 Assert.isLegal(!isConnected()); | |
| 1364 fUpdaterDocument= document; | |
| 1365 try { | |
| 1366 fUpdaterCategory= SELECTION_POSITION_CATEGORY + hashCode(); | |
| 1367 fUpdater= new NonDeletingPositionUpdater(fUpdaterCategory); | |
| 1368 fUpdaterDocument.addPositionCategory(fUpdaterCategory); | |
| 1369 fUpdaterDocument.addPositionUpdater(fUpdater); | |
| 1370 | |
| 1371 Point selectionRange= getSelectedRange(); | |
| 1372 fReverseSelection= selectionRange.y < 0; | |
| 1373 int offset, length; | |
| 1374 if (fReverseSelection) { | |
| 1375 offset= selectionRange.x + selectionRange.y; | |
| 1376 length= -selectionRange.y; | |
| 1377 } else { | |
| 1378 offset= selectionRange.x; | |
| 1379 length= selectionRange.y; | |
| 1380 } | |
| 1381 | |
| 1382 fSelection= new Position(offset, length); | |
| 1383 fSelectionSet= false; | |
| 1384 fUpdaterDocument.addPosition(fUpdaterCategory, fSelection); | |
| 1385 | |
| 1386 int stableLine= getStableLine(); | |
| 1387 int stableWidgetLine= modelLine2WidgetLine(stableLine); | |
| 1388 fStablePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1389 IRegion stableLineInfo= fUpdaterDocument.getLineInformation(stableLine); | |
| 1390 fStableLine= new Position(stableLineInfo.getOffset(), stableLineInfo.getLength()); | |
| 1391 fUpdaterDocument.addPosition(fUpdaterCategory, fStableLine); | |
| 1392 } catch (BadPositionCategoryException e) { | |
| 1393 // cannot happen | |
| 1394 Assert.isTrue(false); | |
| 1395 } catch (BadLocationException e) { | |
| 1396 // should not happen except on concurrent modification | |
| 1397 // ignore and disconnect | |
| 1398 disconnect(); | |
| 1399 } | |
| 1400 } | |
| 1401 | |
| 1402 /** | |
| 1403 * Updates a position with the given information and clears its deletion state. | |
|
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1404 * |
| 129 | 1405 * @param position the position to update |
| 1406 * @param offset the new selection offset | |
| 1407 * @param length the new selection length | |
| 1408 */ | |
| 1409 private void updatePosition(Position position, int offset, int length) { | |
| 1410 position.setOffset(offset); | |
| 1411 position.setLength(length); | |
| 1412 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=32795 | |
| 1413 position.isDeleted= false; | |
| 1414 } | |
| 1415 | |
| 1416 /** | |
| 1417 * Returns the document line to keep visually stable. If the caret line is (partially) | |
| 1418 * visible, it is returned, otherwise the topmost (partially) visible line is returned. | |
|
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1419 * |
| 129 | 1420 * @return the visually stable line of this viewer state |
| 1421 */ | |
| 1422 private int getStableLine() { | |
| 1423 int stableLine; // the model line that we try to keep stable | |
| 1424 int caretLine= getTextWidget().getLineAtOffset(getTextWidget().getCaretOffset()); | |
| 1425 if (caretLine < JFaceTextUtil.getPartialTopIndex(getTextWidget()) || caretLine > JFaceTextUtil.getPartialBottomIndex(getTextWidget())) { | |
|
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1426 stableLine= JFaceTextUtil.getPartialTopIndex(this.outer); |
| 129 | 1427 } else { |
| 1428 stableLine= widgetLine2ModelLine(caretLine); | |
| 1429 } | |
| 1430 return stableLine; | |
| 1431 } | |
| 1432 | |
| 1433 /** | |
| 1434 * Returns <code>true</code> if the viewer state is being tracked, <code>false</code> | |
| 1435 * otherwise. | |
|
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1436 * |
| 129 | 1437 * @return the tracking state |
| 1438 */ | |
| 1439 private bool isConnected() { | |
| 1440 return fUpdater !is null; | |
| 1441 } | |
| 1442 | |
| 1443 /** | |
| 1444 * Disconnects from the document. | |
| 1445 */ | |
| 1446 private void disconnect() { | |
| 1447 Assert.isTrue(isConnected()); | |
| 1448 try { | |
| 1449 fUpdaterDocument.removePosition(fUpdaterCategory, fSelection); | |
| 1450 fUpdaterDocument.removePosition(fUpdaterCategory, fStableLine); | |
| 1451 fUpdaterDocument.removePositionUpdater(fUpdater); | |
| 1452 fUpdater= null; | |
| 1453 fUpdaterDocument.removePositionCategory(fUpdaterCategory); | |
| 1454 fUpdaterCategory= null; | |
| 1455 } catch (BadPositionCategoryException x) { | |
| 1456 // cannot happen | |
| 1457 Assert.isTrue(false); | |
| 1458 } | |
| 1459 } | |
| 1460 } | |
| 1461 | |
| 1462 /** | |
| 1463 * Internal cursor listener i.e. aggregation of mouse and key listener. | |
|
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1464 * |
| 129 | 1465 * @since 3.0 |
| 1466 */ | |
| 1467 private class CursorListener : KeyListener, MouseListener { | |
| 1468 | |
| 1469 /** | |
| 1470 * Installs this cursor listener. | |
| 1471 */ | |
| 1472 private void install() { | |
| 1473 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1474 fTextWidget.addKeyListener(this); | |
| 1475 fTextWidget.addMouseListener(this); | |
| 1476 } | |
| 1477 } | |
| 1478 | |
| 1479 /** | |
| 1480 * Uninstalls this cursor listener. | |
| 1481 */ | |
| 1482 private void uninstall() { | |
| 1483 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1484 fTextWidget.removeKeyListener(this); | |
| 1485 fTextWidget.removeMouseListener(this); | |
| 1486 } | |
| 1487 } | |
| 1488 | |
| 1489 /* | |
| 1490 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1491 */ | |
| 1492 public void keyPressed(KeyEvent event) { | |
| 1493 } | |
| 1494 | |
| 1495 /* | |
| 1496 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1497 */ | |
| 1498 public void keyReleased(KeyEvent e) { | |
| 1499 if (fTextWidget.getSelectionCount() is 0) { | |
| 1500 fLastSentSelectionChange= null; | |
| 1501 queuePostSelectionChanged(e.character is DWT.DEL); | |
| 1502 } | |
| 1503 } | |
| 1504 | |
| 1505 /* | |
| 1506 * @see MouseListener#mouseDoubleClick(dwt.events.MouseEvent) | |
| 1507 */ | |
| 1508 public void mouseDoubleClick(MouseEvent e) { | |
| 1509 } | |
| 1510 | |
| 1511 /* | |
| 1512 * @see MouseListener#mouseDown(dwt.events.MouseEvent) | |
| 1513 */ | |
| 1514 public void mouseDown(MouseEvent e) { | |
| 1515 } | |
| 1516 | |
| 1517 /* | |
| 1518 * @see MouseListener#mouseUp(dwt.events.MouseEvent) | |
| 1519 */ | |
| 1520 public void mouseUp(MouseEvent event) { | |
| 1521 if (fTextWidget.getSelectionCount() is 0) | |
| 1522 queuePostSelectionChanged(false); | |
| 1523 } | |
| 1524 } | |
| 1525 | |
| 1526 /** | |
| 1527 * Internal listener to document rewrite session state changes. | |
| 1528 * @since 3.1 | |
| 1529 */ | |
| 1530 private class DocumentRewriteSessionListener : IDocumentRewriteSessionListener { | |
| 1531 | |
| 1532 /* | |
| 1533 * @see dwtx.jface.text.IDocumentRewriteSessionListener#documentRewriteSessionChanged(dwtx.jface.text.DocumentRewriteSessionEvent) | |
| 1534 */ | |
| 1535 public void documentRewriteSessionChanged(DocumentRewriteSessionEvent event) { | |
| 137 | 1536 IRewriteTarget target= this.outer.getRewriteTarget(); |
| 129 | 1537 // FIXME always use setRedraw to avoid flickering due to scrolling |
| 1538 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=158746 | |
| 1539 bool toggleRedraw= true || event.getSession().getSessionType() !is DocumentRewriteSessionType.UNRESTRICTED_SMALL; | |
| 1540 final bool viewportStabilize= !toggleRedraw; | |
| 1541 if (DocumentRewriteSessionEvent.SESSION_START is event.getChangeType()) { | |
| 1542 if (toggleRedraw) | |
| 1543 target.setRedraw(false); | |
| 1544 target.beginCompoundChange(); | |
| 1545 if (viewportStabilize && fViewerState is null) | |
| 1546 fViewerState= new ViewerState(); | |
| 1547 } else if (DocumentRewriteSessionEvent.SESSION_STOP is event.getChangeType()) { | |
| 1548 if (viewportStabilize && fViewerState !is null) { | |
| 1549 fViewerState.restore(true); | |
| 1550 fViewerState= null; | |
| 1551 } | |
| 1552 target.endCompoundChange(); | |
| 1553 if (toggleRedraw) | |
| 1554 target.setRedraw(true); | |
| 1555 } | |
| 1556 } | |
| 1557 } | |
|
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1558 |
|
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1559 |
| 129 | 1560 /** |
| 1561 * Identifies the scrollbars as originators of a view port change. | |
| 1562 */ | |
| 1563 protected static final int SCROLLER= 1; | |
| 1564 /** | |
| 1565 * Identifies mouse moves as originators of a view port change. | |
| 1566 */ | |
| 1567 protected static final int MOUSE= 2; | |
| 1568 /** | |
| 1569 * Identifies mouse button up as originator of a view port change. | |
| 1570 */ | |
| 1571 protected static final int MOUSE_END= 3; | |
| 1572 /** | |
| 1573 * Identifies key strokes as originators of a view port change. | |
| 1574 */ | |
| 1575 protected static final int KEY= 4; | |
| 1576 /** | |
| 1577 * Identifies window resizing as originator of a view port change. | |
| 1578 */ | |
| 1579 protected static final int RESIZE= 5; | |
| 1580 /** | |
| 1581 * Identifies internal reasons as originators of a view port change. | |
| 1582 */ | |
| 1583 protected static final int INTERNAL= 6; | |
| 1584 | |
| 1585 /** Internal name of the position category used selection preservation during shift. */ | |
| 1586 protected static final String SHIFTING= "__TextViewer_shifting"; //$NON-NLS-1$ | |
| 1587 | |
| 1588 /** | |
| 1589 * Base position category name used by the selection updater | |
| 1590 * @since 3.1 | |
| 1591 */ | |
| 147 | 1592 private static const String SELECTION_POSITION_CATEGORY= "_textviewer_selection_category"; //$NON-NLS-1$ |
| 129 | 1593 /** The viewer's text widget */ |
| 1594 private StyledText fTextWidget; | |
| 1595 /** The viewer's input document */ | |
| 1596 private IDocument fDocument; | |
| 1597 /** The viewer's visible document */ | |
| 1598 private IDocument fVisibleDocument; | |
| 1599 /** The viewer's document adapter */ | |
| 1600 private IDocumentAdapter fDocumentAdapter; | |
| 1601 /** The slave document manager */ | |
| 1602 private ISlaveDocumentManager fSlaveDocumentManager; | |
| 1603 /** The text viewer's double click strategies connector */ | |
| 1604 private TextDoubleClickStrategyConnector fDoubleClickStrategyConnector; | |
| 1605 /** The text viewer's view port guard */ | |
| 1606 private ViewportGuard fViewportGuard; | |
| 1607 /** Caches the graphical coordinate of the first visible line */ | |
| 1608 private int fTopInset= 0; | |
| 1609 /** The most recent document modification as widget command */ | |
| 159 | 1610 private WidgetCommand fWidgetCommand; |
| 129 | 1611 /** The DWT control's scrollbars */ |
| 1612 private ScrollBar fScroller; | |
| 1613 /** Listener on the visible document */ | |
| 159 | 1614 private VisibleDocumentListener fVisibleDocumentListener; |
| 129 | 1615 /** Verify listener */ |
| 159 | 1616 private TextVerifyListener fVerifyListener; |
| 129 | 1617 /** The most recent widget modification as document command */ |
| 159 | 1618 private DocumentCommand fDocumentCommand; |
| 129 | 1619 /** The viewer's find/replace target */ |
| 1620 private IFindReplaceTarget fFindReplaceTarget; | |
| 1621 /** | |
| 1622 * The text viewer's hovering controller | |
| 1623 * @since 2.0 | |
| 1624 */ | |
| 1625 private TextViewerHoverManager fTextHoverManager; | |
| 1626 /** | |
| 1627 * The viewer widget token keeper | |
| 1628 * @since 2.0 | |
| 1629 */ | |
| 1630 private IWidgetTokenKeeper fWidgetTokenKeeper; | |
| 1631 /** | |
| 1632 * The viewer's manager of verify key listeners | |
| 1633 * @since 2.0 | |
| 1634 */ | |
| 159 | 1635 private VerifyKeyListenersManager fVerifyKeyListenersManager; |
| 129 | 1636 /** |
| 1637 * The mark position. | |
| 1638 * @since 2.0 | |
| 1639 */ | |
| 1640 protected Position fMarkPosition; | |
| 1641 /** | |
| 1642 * The mark position category. | |
| 1643 * @since 2.0 | |
| 1644 */ | |
| 159 | 1645 private const String MARK_POSITION_CATEGORY; |
| 129 | 1646 /** |
| 1647 * The mark position updater | |
| 1648 * @since 2.0 | |
| 1649 */ | |
| 159 | 1650 private const IPositionUpdater fMarkPositionUpdater; |
| 129 | 1651 /** |
| 1652 * The flag indicating the redraw behavior | |
| 1653 * @since 2.0 | |
| 1654 */ | |
| 1655 private int fRedrawCounter= 0; | |
| 1656 /** | |
| 1657 * The viewer's rewrite target | |
| 1658 * @since 2.0 | |
| 1659 */ | |
| 1660 private IRewriteTarget fRewriteTarget; | |
| 1661 /** | |
| 1662 * The viewer's cursor listener. | |
| 1663 * @since 3.0 | |
| 1664 */ | |
| 1665 private CursorListener fCursorListener; | |
| 1666 /** | |
| 1667 * Last selection range sent to selection change listeners. | |
| 1668 * @since 3.0 | |
| 1669 */ | |
| 1670 private IRegion fLastSentSelectionChange; | |
| 1671 /** | |
| 1672 * The registered post selection changed listeners. | |
| 1673 * @since 3.0 | |
| 1674 */ | |
| 1675 private List fPostSelectionChangedListeners; | |
| 1676 /** | |
| 1677 * Queued post selection changed events count. | |
| 1678 * @since 3.0 | |
| 1679 */ | |
| 146 | 1680 private const int[] fNumberOfPostSelectionChangedEvents= new int[1]; |
| 129 | 1681 /** |
| 1682 * Last selection range sent to post selection change listeners. | |
| 1683 * @since 3.0 | |
| 1684 */ | |
| 1685 private IRegion fLastSentPostSelectionChange; | |
| 1686 /** | |
| 1687 * The set of registered editor helpers. | |
| 1688 * @since 3.1 | |
| 1689 */ | |
| 1690 private Set fEditorHelpers= new HashSet(); | |
| 1691 /** | |
| 1692 * The internal rewrite session listener. | |
| 1693 * @since 3.1 | |
| 1694 */ | |
| 159 | 1695 private DocumentRewriteSessionListener fDocumentRewriteSessionListener; |
| 129 | 1696 |
| 1697 /** Should the auto indent strategies ignore the next edit operation */ | |
| 1698 protected bool fIgnoreAutoIndent= false; | |
| 1699 /** The strings a line is prefixed with on SHIFT_RIGHT and removed from each line on SHIFT_LEFT */ | |
| 1700 protected Map fIndentChars; | |
| 1701 /** The string a line is prefixed with on PREFIX and removed from each line on STRIP_PREFIX */ | |
| 1702 protected Map fDefaultPrefixChars; | |
| 1703 /** The text viewer's text double click strategies */ | |
| 1704 protected Map fDoubleClickStrategies; | |
| 1705 /** The text viewer's undo manager */ | |
| 1706 protected IUndoManager fUndoManager; | |
| 1707 /** The text viewer's auto indent strategies */ | |
| 1708 protected Map fAutoIndentStrategies; | |
| 1709 /** The text viewer's text hovers */ | |
| 1710 protected Map fTextHovers; | |
| 1711 /** All registered view port listeners> */ | |
| 1712 protected List fViewportListeners; | |
| 1713 /** The last visible vertical position of the top line */ | |
| 1714 protected int fLastTopPixel; | |
| 1715 /** All registered text listeners */ | |
| 1716 protected List fTextListeners; | |
| 1717 /** All registered text input listeners */ | |
| 1718 protected List fTextInputListeners; | |
| 1719 /** The text viewer's event consumer */ | |
| 1720 protected IEventConsumer fEventConsumer; | |
| 1721 /** Indicates whether the viewer's text presentation should be replaced are modified. */ | |
| 1722 protected bool fReplaceTextPresentation= false; | |
| 1723 /** | |
| 1724 * The creator of the text hover control | |
| 1725 * @since 2.0 | |
| 1726 */ | |
| 1727 protected IInformationControlCreator fHoverControlCreator; | |
| 1728 /** | |
| 1729 * The mapping between model and visible document. | |
| 1730 * @since 2.1 | |
| 1731 */ | |
| 1732 protected IDocumentInformationMapping fInformationMapping; | |
| 1733 /** | |
| 1734 * The viewer's paint manager. | |
| 1735 * @since 2.1 | |
| 1736 */ | |
| 1737 protected PaintManager fPaintManager; | |
| 1738 /** | |
| 1739 * The viewers partitioning. I.e. the partitioning name the viewer uses to access partitioning information of its input document. | |
| 1740 * @since 3.0 | |
| 1741 */ | |
| 1742 protected String fPartitioning; | |
| 1743 /** | |
| 1744 * All registered text presentation listeners. | |
| 1745 * since 3.0 | |
| 1746 */ | |
| 1747 protected List fTextPresentationListeners; | |
| 1748 /** | |
| 1749 * The find/replace document adapter. | |
| 1750 * @since 3.0 | |
| 1751 */ | |
| 1752 protected FindReplaceDocumentAdapter fFindReplaceDocumentAdapter; | |
| 1753 | |
| 1754 /** | |
| 1755 * The text viewer's hyperlink detectors. | |
| 1756 * @since 3.1 | |
| 1757 */ | |
| 1758 protected IHyperlinkDetector[] fHyperlinkDetectors; | |
| 1759 /** | |
| 1760 * The text viewer's hyperlink presenter. | |
| 1761 * @since 3.1 | |
| 1762 */ | |
| 1763 protected IHyperlinkPresenter fHyperlinkPresenter; | |
| 1764 /** | |
| 1765 * The text viewer's hyperlink manager. | |
| 1766 * @since 3.1 | |
| 1767 */ | |
| 1768 protected HyperlinkManager fHyperlinkManager; | |
| 1769 /** | |
| 1770 * The DWT key modifier mask which in combination | |
| 1771 * with the left mouse button triggers the hyperlink mode. | |
| 1772 * @since 3.1 | |
| 1773 */ | |
| 1774 protected int fHyperlinkStateMask; | |
| 1775 /** | |
| 1776 * The viewer state when in non-redraw state, <code>null</code> otherwise. | |
| 1777 * @since 3.3 | |
| 1778 */ | |
| 1779 private ViewerState fViewerState; | |
| 1780 /** | |
| 1781 * The editor's tab converter. | |
| 1782 * @since 3.3 | |
| 1783 */ | |
| 1784 private IAutoEditStrategy fTabsToSpacesConverter; | |
| 1785 | |
| 1786 | |
| 1787 //---- Construction and disposal ------------------ | |
| 1788 | |
| 159 | 1789 private void instanceInit(){ |
| 1790 fWidgetCommand= new WidgetCommand(); | |
| 1791 fVisibleDocumentListener= new VisibleDocumentListener(); | |
| 1792 fVerifyListener= new TextVerifyListener(); | |
| 1793 fDocumentCommand= new DocumentCommand(); | |
| 1794 fVerifyKeyListenersManager= new VerifyKeyListenersManager(); | |
| 1795 MARK_POSITION_CATEGORY=Format("__mark_category_{}", hashCode()); //$NON-NLS-1$ | |
| 1796 fMarkPositionUpdater= new DefaultPositionUpdater(MARK_POSITION_CATEGORY); | |
| 1797 fDocumentRewriteSessionListener= new DocumentRewriteSessionListener(); | |
| 1798 } | |
| 129 | 1799 /** |
| 1800 * Internal use only | |
| 1801 */ | |
|
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1802 protected this() { |
| 159 | 1803 instanceInit(); |
| 129 | 1804 } |
| 1805 | |
| 1806 /** | |
| 1807 * Create a new text viewer with the given DWT style bits. | |
| 1808 * The viewer is ready to use but does not have any plug-in installed. | |
| 1809 * | |
| 1810 * @param parent the parent of the viewer's control | |
| 1811 * @param styles the DWT style bits for the viewer's control, | |
| 1812 * <em>if <code>DWT.WRAP</code> is set then a custom document adapter needs to be provided, see {@link #createDocumentAdapter()} | |
| 1813 */ | |
|
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1814 public this(Composite parent, int styles) { |
| 159 | 1815 instanceInit(); |
| 129 | 1816 createControl(parent, styles); |
| 1817 } | |
| 1818 | |
| 1819 /** | |
| 1820 * Factory method to create the text widget to be used as the viewer's text widget. | |
| 1821 * | |
| 1822 * @param parent the parent of the styled text | |
| 1823 * @param styles the styles for the styled text | |
| 1824 * @return the text widget to be used | |
| 1825 */ | |
| 1826 protected StyledText createTextWidget(Composite parent, int styles) { | |
| 1827 return new StyledText(parent, styles); | |
| 1828 } | |
| 1829 | |
| 1830 /** | |
| 1831 * Factory method to create the document adapter to be used by this viewer. | |
| 1832 * | |
| 1833 * @return the document adapter to be used | |
| 1834 */ | |
| 1835 protected IDocumentAdapter createDocumentAdapter() { | |
| 1836 return new DefaultDocumentAdapter(); | |
| 1837 } | |
| 1838 | |
| 1839 /** | |
| 1840 * Creates the viewer's DWT control. The viewer's text widget either is | |
| 1841 * the control or is a child of the control. | |
| 1842 * | |
| 1843 * @param parent the parent of the viewer's control | |
| 1844 * @param styles the DWT style bits for the viewer's control | |
| 1845 */ | |
| 1846 protected void createControl(Composite parent, int styles) { | |
| 1847 | |
| 1848 fTextWidget= createTextWidget(parent, styles); | |
|
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1849 |
| 129 | 1850 // Support scroll page upon MOD1+MouseWheel |
| 135 | 1851 fTextWidget.addListener(DWT.MouseWheel, new class() Listener { |
| 129 | 1852 |
| 1853 public void handleEvent(Event event) { | |
| 1854 if (((event.stateMask & DWT.MOD1) is 0)) | |
| 1855 return; | |
| 1856 | |
| 1857 int topIndex= fTextWidget.getTopIndex(); | |
| 1858 int bottomIndex= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 1859 | |
| 1860 if (event.count > 0) | |
| 1861 fTextWidget.setTopIndex(2 * topIndex - bottomIndex); | |
| 1862 else | |
| 1863 fTextWidget.setTopIndex(bottomIndex); | |
| 1864 | |
| 1865 updateViewportListeners(INTERNAL); | |
| 1866 } | |
| 1867 }); | |
|
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1868 |
| 129 | 1869 fTextWidget.addDisposeListener( |
| 135 | 1870 new class() DisposeListener { |
| 129 | 1871 public void widgetDisposed(DisposeEvent e) { |
| 1872 handleDispose(); | |
| 1873 } | |
| 1874 } | |
| 1875 ); | |
| 1876 | |
| 1877 fTextWidget.setFont(parent.getFont()); | |
| 1878 fTextWidget.setDoubleClickEnabled(true); | |
| 1879 | |
| 1880 /* | |
| 1881 * Disable DWT Shift+TAB traversal in this viewer | |
| 1882 * 1GIYQ9K: ITPUI:WINNT - StyledText swallows Shift+TAB | |
| 1883 */ | |
| 135 | 1884 fTextWidget.addTraverseListener(new class() TraverseListener { |
| 129 | 1885 public void keyTraversed(TraverseEvent e) { |
| 1886 if ((DWT.SHIFT is e.stateMask) && ('\t' is e.character)) | |
| 1887 e.doit= false; | |
| 1888 } | |
| 1889 }); | |
| 1890 | |
| 1891 // where does the first line start | |
| 1892 fTopInset= -fTextWidget.computeTrim(0, 0, 0, 0).y; | |
| 1893 | |
| 1894 fVerifyListener.forward(true); | |
| 1895 fTextWidget.addVerifyListener(fVerifyListener); | |
| 1896 | |
| 135 | 1897 fTextWidget.addSelectionListener(new class() SelectionListener { |
| 129 | 1898 public void widgetDefaultSelected(SelectionEvent event) { |
| 1899 selectionChanged(event.x, event.y - event.x); | |
| 1900 } | |
| 1901 public void widgetSelected(SelectionEvent event) { | |
| 1902 selectionChanged(event.x, event.y - event.x); | |
| 1903 } | |
| 1904 }); | |
| 1905 | |
| 1906 fCursorListener= new CursorListener(); | |
| 1907 fCursorListener.install(); | |
| 1908 | |
| 1909 initializeViewportUpdate(); | |
| 1910 } | |
| 1911 | |
| 1912 /* | |
| 1913 * @see Viewer#getControl() | |
| 1914 */ | |
| 1915 public Control getControl() { | |
| 1916 return fTextWidget; | |
| 1917 } | |
| 1918 | |
| 1919 /* | |
| 1920 * @see ITextViewer#activatePlugins() | |
| 1921 */ | |
| 1922 public void activatePlugins() { | |
| 1923 | |
| 1924 if (fDoubleClickStrategies !is null && !fDoubleClickStrategies.isEmpty() && fDoubleClickStrategyConnector is null) { | |
| 1925 fDoubleClickStrategyConnector= new TextDoubleClickStrategyConnector(); | |
| 1926 fTextWidget.addWordMovementListener(fDoubleClickStrategyConnector); | |
| 1927 fTextWidget.addMouseListener(fDoubleClickStrategyConnector); | |
| 1928 } | |
| 1929 | |
| 1930 ensureHoverControlManagerInstalled(); | |
| 1931 ensureHyperlinkManagerInstalled(); | |
| 1932 | |
| 1933 if (fUndoManager !is null) { | |
| 1934 fUndoManager.connect(this); | |
| 1935 fUndoManager.reset(); | |
| 1936 } | |
| 1937 } | |
| 1938 | |
| 1939 /** | |
| 1940 * After this method has been executed the caller knows that any installed text hover has been installed. | |
| 1941 */ | |
| 1942 private void ensureHoverControlManagerInstalled() { | |
| 1943 if (fTextHovers !is null && !fTextHovers.isEmpty() && fHoverControlCreator !is null && fTextHoverManager is null) { | |
| 1944 fTextHoverManager= new TextViewerHoverManager(this, fHoverControlCreator); | |
| 1945 fTextHoverManager.install(this.getTextWidget()); | |
| 1946 fTextHoverManager.setSizeConstraints(TEXT_HOVER_WIDTH_CHARS, TEXT_HOVER_HEIGHT_CHARS, false, true); | |
| 1947 fTextHoverManager.setInformationControlReplacer(new StickyHoverManager(this)); | |
| 1948 } | |
| 1949 } | |
| 1950 | |
| 1951 /* | |
| 1952 * @see ITextViewer#resetPlugins() | |
| 1953 */ | |
| 1954 public void resetPlugins() { | |
| 1955 if (fUndoManager !is null) | |
| 1956 fUndoManager.reset(); | |
| 1957 } | |
| 1958 | |
| 1959 /** | |
| 1960 * Frees all resources allocated by this viewer. Internally called when the viewer's | |
| 1961 * control has been disposed. | |
| 1962 */ | |
| 1963 protected void handleDispose() { | |
|
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1964 |
| 129 | 1965 setDocument(null); |
| 1966 | |
| 1967 if (fPaintManager !is null) { | |
| 1968 fPaintManager.dispose(); | |
| 1969 fPaintManager= null; | |
| 1970 } | |
| 1971 | |
| 1972 removeViewPortUpdate(); | |
| 1973 fViewportGuard= null; | |
| 1974 | |
| 1975 if (fViewportListeners !is null) { | |
| 1976 fViewportListeners.clear(); | |
| 1977 fViewportListeners= null; | |
| 1978 } | |
| 1979 | |
| 1980 if (fTextListeners !is null) { | |
| 1981 fTextListeners.clear(); | |
| 1982 fTextListeners= null; | |
| 1983 } | |
| 1984 | |
| 1985 if (fTextInputListeners !is null) { | |
| 1986 fTextInputListeners.clear(); | |
| 1987 fTextInputListeners= null; | |
| 1988 } | |
| 1989 | |
| 1990 if (fPostSelectionChangedListeners !is null) { | |
| 1991 fPostSelectionChangedListeners.clear(); | |
| 1992 fPostSelectionChangedListeners= null; | |
| 1993 } | |
| 1994 | |
| 1995 if (fAutoIndentStrategies !is null) { | |
| 1996 fAutoIndentStrategies.clear(); | |
| 1997 fAutoIndentStrategies= null; | |
| 1998 } | |
| 1999 | |
| 2000 if (fUndoManager !is null) { | |
| 2001 fUndoManager.disconnect(); | |
| 2002 fUndoManager= null; | |
| 2003 } | |
| 2004 | |
| 2005 if (fDoubleClickStrategies !is null) { | |
| 2006 fDoubleClickStrategies.clear(); | |
| 2007 fDoubleClickStrategies= null; | |
| 2008 } | |
| 2009 | |
| 2010 if (fTextHovers !is null) { | |
| 2011 fTextHovers.clear(); | |
| 2012 fTextHovers= null; | |
| 2013 } | |
| 2014 | |
| 2015 fDoubleClickStrategyConnector= null; | |
| 2016 | |
| 2017 if (fTextHoverManager !is null) { | |
| 2018 fTextHoverManager.dispose(); | |
| 2019 fTextHoverManager= null; | |
| 2020 } | |
| 2021 | |
| 2022 if (fVisibleDocumentListener !is null) { | |
| 2023 if (fVisibleDocument !is null) | |
| 2024 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 2025 fVisibleDocumentListener= null; | |
| 2026 } | |
| 2027 | |
| 2028 if (fDocumentAdapter !is null) { | |
| 2029 fDocumentAdapter.setDocument(null); | |
| 2030 fDocumentAdapter= null; | |
| 2031 } | |
| 2032 | |
| 2033 if (fSlaveDocumentManager !is null) { | |
| 2034 if (fVisibleDocument !is null) | |
| 2035 fSlaveDocumentManager.freeSlaveDocument(fVisibleDocument); | |
| 2036 fSlaveDocumentManager= null; | |
| 2037 } | |
| 2038 | |
| 2039 if (fCursorListener !is null) { | |
| 2040 fCursorListener.uninstall(); | |
| 2041 fCursorListener= null; | |
| 2042 } | |
| 2043 | |
| 2044 if (fHyperlinkManager !is null) { | |
| 2045 fHyperlinkManager.uninstall(); | |
| 2046 fHyperlinkManager= null; | |
| 2047 } | |
| 2048 | |
| 2049 fHyperlinkDetectors= null; | |
| 2050 fVisibleDocument= null; | |
| 2051 fDocument= null; | |
| 2052 fScroller= null; | |
|
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2053 |
| 129 | 2054 fTextWidget= null; |
| 2055 } | |
| 2056 | |
| 2057 | |
| 2058 //---- simple getters and setters | |
| 2059 | |
| 2060 /* | |
| 2061 * @see dwtx.jface.text.ITextViewer#getTextWidget() | |
| 2062 */ | |
| 2063 public StyledText getTextWidget() { | |
| 2064 return fTextWidget; | |
| 2065 } | |
| 2066 | |
| 2067 /** | |
| 2068 * The delay in milliseconds before an empty selection | |
| 2069 * changed event is sent by the cursor listener. | |
| 2070 * <p> | |
| 2071 * Note: The return value is used to initialize the cursor | |
| 2072 * listener. To return a non-constant value has no effect.</p> | |
| 2073 * <p> | |
| 2074 * The same value (<code>500</code>) is used in <code>OpenStrategy.TIME</code>.</p> | |
| 2075 * | |
| 2076 * @return delay in milliseconds | |
| 2077 * @see dwtx.jface.util.OpenStrategy | |
| 2078 * @since 3.0 | |
| 2079 */ | |
| 2080 protected int getEmptySelectionChangedEventDelay() { | |
| 2081 return 500; | |
| 2082 } | |
| 2083 | |
| 2084 /** | |
| 2085 * {@inheritDoc} | |
| 2086 * @deprecated since 3.1, use | |
| 2087 * {@link ITextViewerExtension2#prependAutoEditStrategy(IAutoEditStrategy, String)} and | |
| 2088 * {@link ITextViewerExtension2#removeAutoEditStrategy(IAutoEditStrategy, String)} instead | |
| 2089 */ | |
| 2090 public void setAutoIndentStrategy(IAutoIndentStrategy strategy, String contentType) { | |
|
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2091 setAutoEditStrategies([ strategy ], contentType); |
| 129 | 2092 } |
| 2093 | |
| 2094 /** | |
| 2095 * Sets the given edit strategy as the only strategy for the given content type. | |
| 2096 * | |
| 2097 * @param strategies the auto edit strategies | |
| 2098 * @param contentType the content type | |
| 2099 * @since 3.1 | |
| 2100 */ | |
| 2101 protected final void setAutoEditStrategies(IAutoEditStrategy[] strategies, String contentType) { | |
| 2102 if (fAutoIndentStrategies is null) | |
| 2103 fAutoIndentStrategies= new HashMap(); | |
| 2104 | |
| 134 | 2105 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2106 |
| 2107 if (strategies is null) { | |
| 2108 if (autoEditStrategies is null) | |
| 2109 return; | |
| 2110 | |
| 2111 fAutoIndentStrategies.put(contentType, null); | |
| 2112 | |
| 2113 } else { | |
| 2114 if (autoEditStrategies is null) { | |
| 2115 autoEditStrategies= new ArrayList(); | |
| 2116 fAutoIndentStrategies.put(contentType, autoEditStrategies); | |
| 2117 } | |
| 2118 | |
| 2119 autoEditStrategies.clear(); | |
| 2120 autoEditStrategies.addAll(Arrays.asList(strategies)); | |
| 2121 } | |
| 2122 } | |
| 2123 | |
| 2124 /* | |
| 2125 * @see dwtx.jface.text.ITextViewerExtension2#prependAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2126 * @since 2.1 | |
| 2127 */ | |
| 2128 public void prependAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2129 | |
| 2130 if (strategy is null || contentType is null) | |
| 2131 throw new IllegalArgumentException(); | |
| 2132 | |
| 2133 if (fAutoIndentStrategies is null) | |
| 2134 fAutoIndentStrategies= new HashMap(); | |
| 2135 | |
| 134 | 2136 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2137 if (autoEditStrategies is null) { |
| 2138 autoEditStrategies= new ArrayList(); | |
| 2139 fAutoIndentStrategies.put(contentType, autoEditStrategies); | |
| 2140 } | |
| 2141 | |
| 2142 autoEditStrategies.add(0, strategy); | |
| 2143 } | |
| 2144 | |
| 2145 /* | |
| 2146 * @see dwtx.jface.text.ITextViewerExtension2#removeAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2147 * @since 2.1 | |
| 2148 */ | |
| 2149 public void removeAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2150 if (fAutoIndentStrategies is null) | |
| 2151 return; | |
| 2152 | |
| 134 | 2153 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2154 if (autoEditStrategies is null) |
| 2155 return; | |
| 2156 | |
| 2157 for (final Iterator iterator= autoEditStrategies.iterator(); iterator.hasNext(); ) { | |
| 2158 if (iterator.next().equals(strategy)) { | |
| 2159 iterator.remove(); | |
| 2160 break; | |
| 2161 } | |
| 2162 } | |
| 2163 | |
| 2164 if (autoEditStrategies.isEmpty()) | |
| 2165 fAutoIndentStrategies.put(contentType, null); | |
| 2166 } | |
| 2167 | |
| 2168 /* | |
| 2169 * @see ITextViewer#setEventConsumer(IEventConsumer) | |
| 2170 */ | |
| 2171 public void setEventConsumer(IEventConsumer consumer) { | |
| 2172 fEventConsumer= consumer; | |
| 2173 } | |
| 2174 | |
| 2175 /* | |
| 2176 * @see ITextViewer#setIndentPrefixes(String[], String) | |
| 2177 */ | |
| 2178 public void setIndentPrefixes(String[] indentPrefixes, String contentType) { | |
| 2179 | |
| 2180 int i= -1; | |
| 2181 bool ok= (indentPrefixes !is null); | |
| 2182 while (ok && ++i < indentPrefixes.length) | |
| 2183 ok= (indentPrefixes[i] !is null); | |
| 2184 | |
| 2185 if (ok) { | |
| 2186 | |
| 2187 if (fIndentChars is null) | |
| 2188 fIndentChars= new HashMap(); | |
| 2189 | |
| 2190 fIndentChars.put(contentType, indentPrefixes); | |
| 2191 | |
| 2192 } else if (fIndentChars !is null) | |
| 2193 fIndentChars.remove(contentType); | |
| 2194 } | |
| 2195 | |
| 2196 /* | |
| 2197 * @see ITextViewer#getTopInset() | |
| 2198 */ | |
| 2199 public int getTopInset() { | |
| 2200 return fTopInset; | |
| 2201 } | |
| 2202 | |
| 2203 /* | |
| 2204 * @see ITextViewer#isEditable() | |
| 2205 */ | |
| 2206 public bool isEditable() { | |
| 2207 if (fTextWidget is null) | |
| 2208 return false; | |
| 2209 return fTextWidget.getEditable(); | |
| 2210 } | |
| 2211 | |
| 2212 /* | |
| 2213 * @see ITextViewer#setEditable(bool) | |
| 2214 */ | |
| 2215 public void setEditable(bool editable) { | |
| 2216 if (fTextWidget !is null) | |
| 2217 fTextWidget.setEditable(editable); | |
| 2218 } | |
| 2219 | |
| 2220 /* | |
| 2221 * @see ITextViewer#setDefaultPrefixes | |
| 2222 * @since 2.0 | |
| 2223 */ | |
| 2224 public void setDefaultPrefixes(String[] defaultPrefixes, String contentType) { | |
| 2225 | |
| 2226 if (defaultPrefixes !is null && defaultPrefixes.length > 0) { | |
| 2227 if (fDefaultPrefixChars is null) | |
| 2228 fDefaultPrefixChars= new HashMap(); | |
| 2229 fDefaultPrefixChars.put(contentType, defaultPrefixes); | |
| 2230 } else if (fDefaultPrefixChars !is null) | |
| 2231 fDefaultPrefixChars.remove(contentType); | |
| 2232 } | |
| 2233 | |
| 2234 /* | |
| 2235 * @see ITextViewer#setUndoManager(IUndoManager) | |
| 2236 */ | |
| 2237 public void setUndoManager(IUndoManager undoManager) { | |
| 2238 fUndoManager= undoManager; | |
| 2239 } | |
| 2240 | |
| 2241 /* | |
| 2242 * @see ITextViewerExtension6#getUndoManager() | |
| 2243 * @since 3.1 | |
| 2244 */ | |
| 2245 public IUndoManager getUndoManager() { | |
| 2246 return fUndoManager; | |
| 2247 } | |
| 2248 | |
| 2249 /* | |
| 2250 * @see ITextViewer#setTextHover(ITextHover, String) | |
| 2251 */ | |
| 2252 public void setTextHover(ITextHover hover, String contentType) { | |
| 2253 setTextHover(hover, contentType, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2254 } | |
| 2255 | |
| 2256 /* | |
| 2257 * @see ITextViewerExtension2#setTextHover(ITextHover, String, int) | |
| 2258 * @since 2.1 | |
| 2259 */ | |
| 2260 public void setTextHover(ITextHover hover, String contentType, int stateMask) { | |
| 2261 TextHoverKey key= new TextHoverKey(contentType, stateMask); | |
| 2262 if (hover !is null) { | |
| 2263 if (fTextHovers is null) { | |
| 2264 fTextHovers= new HashMap(); | |
| 2265 } | |
| 2266 fTextHovers.put(key, hover); | |
| 2267 } else if (fTextHovers !is null) | |
| 2268 fTextHovers.remove(key); | |
| 2269 | |
| 2270 ensureHoverControlManagerInstalled(); | |
| 2271 } | |
| 2272 | |
| 2273 /* | |
| 2274 * @see ITextViewerExtension2#removeTextHovers(String) | |
| 2275 * @since 2.1 | |
| 2276 */ | |
| 2277 public void removeTextHovers(String contentType) { | |
| 2278 if (fTextHovers is null) | |
| 2279 return; | |
| 2280 | |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
2281 Iterator iter= (new HashSet(fTextHovers.keySet())).iterator(); |
| 129 | 2282 while (iter.hasNext()) { |
| 134 | 2283 TextHoverKey key= cast(TextHoverKey)iter.next(); |
| 129 | 2284 if (key.fContentType.equals(contentType)) |
| 2285 fTextHovers.remove(key); | |
| 2286 } | |
| 2287 } | |
| 2288 | |
| 2289 /** | |
| 2290 * Returns the text hover for a given offset. | |
| 2291 * | |
| 2292 * @param offset the offset for which to return the text hover | |
| 2293 * @return the text hover for the given offset | |
| 2294 */ | |
| 2295 protected ITextHover getTextHover(int offset) { | |
| 2296 return getTextHover(offset, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2297 } | |
| 2298 | |
| 2299 /** | |
| 2300 * Returns the text hover for a given offset and a given state mask. | |
| 2301 * | |
| 2302 * @param offset the offset for which to return the text hover | |
| 2303 * @param stateMask the DWT event state mask | |
| 2304 * @return the text hover for the given offset and state mask | |
| 2305 * @since 2.1 | |
| 2306 */ | |
| 2307 protected ITextHover getTextHover(int offset, int stateMask) { | |
| 2308 if (fTextHovers is null) | |
| 2309 return null; | |
| 2310 | |
| 2311 IDocument document= getDocument(); | |
| 2312 if (document is null) | |
| 2313 return null; | |
| 2314 | |
| 2315 try { | |
| 2316 TextHoverKey key= new TextHoverKey(TextUtilities.getContentType(document, getDocumentPartitioning(), offset, true), stateMask); | |
| 2317 Object textHover= fTextHovers.get(key); | |
| 2318 if (textHover is null) { | |
| 2319 // Use default text hover | |
| 2320 key.setStateMask(ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2321 textHover= fTextHovers.get(key); | |
| 2322 } | |
| 134 | 2323 return cast(ITextHover) textHover; |
| 129 | 2324 } catch (BadLocationException x) { |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2325 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2326 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 2327 } |
| 2328 return null; | |
| 2329 } | |
| 2330 | |
| 2331 /** | |
| 2332 * Returns the text hovering controller of this viewer. | |
| 2333 * | |
| 2334 * @return the text hovering controller of this viewer | |
| 2335 * @since 2.0 | |
| 2336 */ | |
| 2337 protected AbstractInformationControlManager getTextHoveringController() { | |
| 2338 return fTextHoverManager; | |
| 2339 } | |
| 2340 | |
| 2341 /** | |
| 2342 * Sets the creator for the hover controls. | |
| 2343 * | |
| 2344 * @param creator the hover control creator | |
| 2345 * @since 2.0 | |
| 2346 */ | |
| 2347 public void setHoverControlCreator(IInformationControlCreator creator) { | |
| 2348 fHoverControlCreator= creator; | |
| 2349 } | |
| 2350 | |
| 2351 /** | |
| 2352 * {@inheritDoc} | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2353 * |
| 129 | 2354 * @since 3.4 |
| 2355 */ | |
| 159 | 2356 public void setHoverEnrichMode(ITextViewerExtension8_EnrichMode mode) { |
| 129 | 2357 if (fTextHoverManager is null) |
| 2358 return; | |
| 2359 fTextHoverManager.setHoverEnrichMode(mode); | |
| 2360 } | |
| 2361 | |
| 2362 /* | |
| 2363 * @see IWidgetTokenOwner#requestWidgetToken(IWidgetTokenKeeper) | |
| 2364 * @since 2.0 | |
| 2365 */ | |
| 2366 public bool requestWidgetToken(IWidgetTokenKeeper requester) { | |
| 2367 if (fTextWidget !is null) { | |
| 2368 if (fWidgetTokenKeeper !is null) { | |
| 2369 if (fWidgetTokenKeeper is requester) | |
| 2370 return true; | |
| 2371 if (fWidgetTokenKeeper.requestWidgetToken(this)) { | |
| 2372 fWidgetTokenKeeper= requester; | |
| 2373 return true; | |
| 2374 } | |
| 2375 } else { | |
| 2376 fWidgetTokenKeeper= requester; | |
| 2377 return true; | |
| 2378 } | |
| 2379 } | |
| 2380 return false; | |
| 2381 } | |
| 2382 | |
| 2383 /* | |
| 2384 * @see dwtx.jface.text.IWidgetTokenOwnerExtension#requestWidgetToken(dwtx.jface.text.IWidgetTokenKeeper, int) | |
| 2385 * @since 3.0 | |
| 2386 */ | |
| 2387 public bool requestWidgetToken(IWidgetTokenKeeper requester, int priority) { | |
| 2388 if (fTextWidget !is null) { | |
| 2389 if (fWidgetTokenKeeper !is null) { | |
| 2390 | |
| 2391 if (fWidgetTokenKeeper is requester) | |
| 2392 return true; | |
| 2393 | |
| 2394 bool accepted= false; | |
| 138 | 2395 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 2396 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 2397 accepted= extension.requestWidgetToken(this, priority); |
| 2398 } else { | |
| 2399 accepted= fWidgetTokenKeeper.requestWidgetToken(this); | |
| 2400 } | |
| 2401 | |
| 2402 if (accepted) { | |
| 2403 fWidgetTokenKeeper= requester; | |
| 2404 return true; | |
| 2405 } | |
| 2406 | |
| 2407 } else { | |
| 2408 fWidgetTokenKeeper= requester; | |
| 2409 return true; | |
| 2410 } | |
| 2411 } | |
| 2412 return false; | |
| 2413 } | |
| 2414 | |
| 2415 /* | |
| 2416 * @see IWidgetTokenOwner#releaseWidgetToken(IWidgetTokenKeeper) | |
| 2417 * @since 2.0 | |
| 2418 */ | |
| 2419 public void releaseWidgetToken(IWidgetTokenKeeper tokenKeeper) { | |
| 2420 if (fWidgetTokenKeeper is tokenKeeper) | |
| 2421 fWidgetTokenKeeper= null; | |
| 2422 } | |
| 2423 | |
| 2424 | |
| 2425 //---- Selection | |
| 2426 | |
| 2427 /* | |
| 2428 * @see ITextViewer#getSelectedRange() | |
| 2429 */ | |
| 2430 public Point getSelectedRange() { | |
| 2431 | |
| 2432 if (!redraws() && fViewerState !is null) | |
| 2433 return fViewerState.getSelection(); | |
| 2434 | |
| 2435 if (fTextWidget !is null) { | |
| 2436 Point p= fTextWidget.getSelectionRange(); | |
| 2437 p= widgetSelection2ModelSelection(p); | |
| 2438 if (p !is null) | |
| 2439 return p; | |
| 2440 } | |
| 2441 | |
| 2442 return new Point(-1, -1); | |
| 2443 } | |
| 2444 | |
| 2445 /* | |
| 2446 * @see ITextViewer#setSelectedRange(int, int) | |
| 2447 */ | |
| 2448 public void setSelectedRange(int selectionOffset, int selectionLength) { | |
| 2449 | |
| 2450 if (!redraws()) { | |
| 2451 if (fViewerState !is null) | |
| 2452 fViewerState.updateSelection(selectionOffset, selectionLength); | |
| 2453 return; | |
| 2454 } | |
| 2455 | |
| 2456 if (fTextWidget is null) | |
| 2457 return; | |
| 2458 | |
| 2459 IRegion widgetSelection= modelRange2ClosestWidgetRange(new Region(selectionOffset, selectionLength)); | |
| 2460 if (widgetSelection !is null) { | |
| 2461 | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2462 int[] selectionRange= [ widgetSelection.getOffset(), widgetSelection.getLength() ]; |
| 129 | 2463 validateSelectionRange(selectionRange); |
| 2464 if (selectionRange[0] >= 0) { | |
| 2465 fTextWidget.setSelectionRange(selectionRange[0], selectionRange[1]); | |
| 2466 selectionChanged(selectionRange[0], selectionRange[1]); | |
| 2467 } | |
| 2468 } | |
| 2469 } | |
| 2470 | |
| 2471 /** | |
| 2472 * Validates and adapts the given selection range if it is not a valid | |
| 2473 * widget selection. The widget selection is invalid if it starts or ends | |
| 2474 * inside a multi-character line delimiter. If so, the selection is adapted to | |
| 2475 * start <b>after</b> the divided line delimiter and to end <b>before</b> | |
| 2476 * the divided line delimiter. The parameter passed in is changed in-place | |
| 2477 * when being adapted. An adaptation to <code>[-1, -1]</code> indicates | |
| 2478 * that the selection range could not be validated. | |
| 2479 * Subclasses may reimplement this method. | |
| 2480 * | |
| 2481 * @param selectionRange selectionRange[0] is the offset, selectionRange[1] | |
| 2482 * the length of the selection to validate. | |
| 2483 * @since 2.0 | |
| 2484 */ | |
| 2485 protected void validateSelectionRange(int[] selectionRange) { | |
| 2486 | |
| 2487 IDocument document= getVisibleDocument(); | |
| 2488 if (document is null) { | |
| 2489 selectionRange[0]= -1; | |
| 2490 selectionRange[1]= -1; | |
| 2491 return; | |
| 2492 } | |
| 2493 | |
| 2494 int documentLength= document.getLength(); | |
| 2495 int offset= selectionRange[0]; | |
| 2496 int length= selectionRange[1]; | |
| 2497 | |
| 2498 if (length < 0) { | |
| 2499 length= - length; | |
| 2500 offset -= length; | |
| 2501 } | |
| 2502 | |
| 2503 if (offset <0) | |
| 2504 offset= 0; | |
| 2505 | |
| 2506 if (offset > documentLength) | |
| 2507 offset= documentLength; | |
| 2508 | |
| 2509 int delta= (offset + length) - documentLength; | |
| 2510 if (delta > 0) | |
| 2511 length -= delta; | |
| 2512 | |
| 2513 try { | |
| 2514 | |
| 2515 int lineNumber= document.getLineOfOffset(offset); | |
| 2516 IRegion lineInformation= document.getLineInformation(lineNumber); | |
| 2517 | |
| 2518 int lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2519 delta= offset - lineEnd; | |
| 2520 if (delta > 0) { | |
| 2521 // in the middle of a multi-character line delimiter | |
| 2522 offset= lineEnd; | |
| 2523 String delimiter= document.getLineDelimiter(lineNumber); | |
| 2524 if (delimiter !is null) | |
| 2525 offset += delimiter.length(); | |
| 2526 } | |
| 2527 | |
| 2528 int end= offset + length; | |
| 2529 lineInformation= document.getLineInformationOfOffset(end); | |
| 2530 lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2531 delta= end - lineEnd; | |
| 2532 if (delta > 0) { | |
| 2533 // in the middle of a multi-character line delimiter | |
| 2534 length -= delta; | |
| 2535 } | |
| 2536 | |
| 2537 } catch (BadLocationException x) { | |
| 2538 selectionRange[0]= -1; | |
| 2539 selectionRange[1]= -1; | |
| 2540 return; | |
| 2541 } | |
| 2542 | |
| 2543 if (selectionRange[1] < 0) { | |
| 2544 selectionRange[0]= offset + length; | |
| 2545 selectionRange[1]= -length; | |
| 2546 } else { | |
| 2547 selectionRange[0]= offset; | |
| 2548 selectionRange[1]= length; | |
| 2549 } | |
| 2550 } | |
| 2551 | |
| 2552 /* | |
| 2553 * @see Viewer#setSelection(ISelection) | |
| 2554 */ | |
| 2555 public void setSelection(ISelection selection, bool reveal) { | |
| 138 | 2556 if ( cast(ITextSelection)selection ) { |
| 134 | 2557 ITextSelection s= cast(ITextSelection) selection; |
| 129 | 2558 setSelectedRange(s.getOffset(), s.getLength()); |
| 2559 if (reveal) | |
| 2560 revealRange(s.getOffset(), s.getLength()); | |
| 2561 } | |
| 2562 } | |
| 2563 | |
| 2564 /* | |
| 2565 * @see Viewer#getSelection() | |
| 2566 */ | |
| 2567 public ISelection getSelection() { | |
| 2568 Point p= getSelectedRange(); | |
| 2569 if (p.x is -1 || p.y is -1) | |
| 2570 return TextSelection.emptySelection(); | |
| 2571 | |
| 2572 return new TextSelection(getDocument(), p.x, p.y); | |
| 2573 } | |
| 2574 | |
| 2575 /* | |
| 2576 * @see ITextViewer#getSelectionProvider() | |
| 2577 */ | |
| 2578 public ISelectionProvider getSelectionProvider() { | |
| 2579 return this; | |
| 2580 } | |
| 2581 | |
| 2582 /* | |
| 2583 * @see dwtx.jface.text.IPostSelectionProvider#addPostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2584 * @since 3.0 | |
| 2585 */ | |
| 2586 public void addPostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2587 | |
| 2588 Assert.isNotNull(listener); | |
| 2589 | |
| 2590 if (fPostSelectionChangedListeners is null) | |
| 2591 fPostSelectionChangedListeners= new ArrayList(); | |
| 2592 | |
| 2593 if (!fPostSelectionChangedListeners.contains(listener)) | |
| 2594 fPostSelectionChangedListeners.add(listener); | |
| 2595 } | |
| 2596 | |
| 2597 /* | |
| 2598 * @see dwtx.jface.text.IPostSelectionProvider#removePostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2599 * @since 3.0 | |
| 2600 */ | |
| 2601 public void removePostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2602 | |
| 2603 Assert.isNotNull(listener); | |
| 2604 | |
| 2605 if (fPostSelectionChangedListeners !is null) { | |
| 2606 fPostSelectionChangedListeners.remove(listener); | |
| 2607 if (fPostSelectionChangedListeners.size() is 0) | |
| 2608 fPostSelectionChangedListeners= null; | |
| 2609 } | |
| 2610 } | |
| 2611 | |
| 2612 /** | |
| 2613 * Get the text widget's display. | |
| 2614 * | |
| 2615 * @return the display or <code>null</code> if the display cannot be retrieved or if the display is disposed | |
| 2616 * @since 3.0 | |
| 2617 */ | |
| 2618 private Display getDisplay() { | |
| 2619 if (fTextWidget is null || fTextWidget.isDisposed()) | |
| 2620 return null; | |
| 2621 | |
| 2622 Display display= fTextWidget.getDisplay(); | |
| 2623 if (display !is null && display.isDisposed()) | |
| 2624 return null; | |
| 2625 | |
| 2626 return display; | |
| 2627 } | |
| 2628 | |
| 2629 /** | |
| 2630 * Starts a timer to send out a post selection changed event. | |
| 2631 * | |
| 2632 * @param fireEqualSelection <code>true</code> iff the event must be fired if the selection does not change | |
| 2633 * @since 3.0 | |
| 2634 */ | |
| 156 | 2635 private void queuePostSelectionChanged(bool fireEqualSelection) { |
| 129 | 2636 Display display= getDisplay(); |
| 2637 if (display is null) | |
| 2638 return; | |
| 2639 | |
| 2640 fNumberOfPostSelectionChangedEvents[0]++; | |
| 135 | 2641 display.timerExec(getEmptySelectionChangedEventDelay(), new class() Runnable { |
| 129 | 2642 final int id= fNumberOfPostSelectionChangedEvents[0]; |
| 2643 public void run() { | |
| 2644 if (id is fNumberOfPostSelectionChangedEvents[0]) { | |
| 2645 // Check again because this is executed after the delay | |
| 2646 if (getDisplay() !is null) { | |
| 2647 Point selection= fTextWidget.getSelectionRange(); | |
| 2648 if (selection !is null) { | |
| 2649 IRegion r= widgetRange2ModelRange(new Region(selection.x, selection.y)); | |
| 2650 if (fireEqualSelection || (r !is null && !r.equals(fLastSentPostSelectionChange)) || r is null) { | |
| 2651 fLastSentPostSelectionChange= r; | |
| 2652 firePostSelectionChanged(selection.x, selection.y); | |
| 2653 } | |
| 2654 } | |
| 2655 } | |
| 2656 } | |
| 2657 } | |
| 2658 }); | |
| 2659 } | |
| 2660 | |
| 2661 /** | |
| 2662 * Sends out a text selection changed event to all registered post selection changed listeners. | |
| 2663 * | |
| 2664 * @param offset the offset of the newly selected range in the visible document | |
| 2665 * @param length the length of the newly selected range in the visible document | |
| 2666 * @since 3.0 | |
| 2667 */ | |
| 2668 protected void firePostSelectionChanged(int offset, int length) { | |
| 2669 if (redraws()) { | |
| 2670 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2671 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2672 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2673 firePostSelectionChanged(event); | |
| 2674 } | |
| 2675 } | |
| 2676 | |
| 2677 /** | |
| 2678 * Sends out a text selection changed event to all registered listeners and | |
| 2679 * registers the selection changed event to be sent out to all post selection | |
| 2680 * listeners. | |
| 2681 * | |
| 2682 * @param offset the offset of the newly selected range in the visible document | |
| 2683 * @param length the length of the newly selected range in the visible document | |
| 2684 */ | |
| 2685 protected void selectionChanged(int offset, int length) { | |
| 2686 queuePostSelectionChanged(true); | |
| 2687 fireSelectionChanged(offset, length); | |
| 2688 } | |
| 2689 | |
| 2690 /** | |
| 2691 * Sends out a text selection changed event to all registered listeners. | |
| 2692 * | |
| 2693 * @param offset the offset of the newly selected range in the visible document | |
| 2694 * @param length the length of the newly selected range in the visible document | |
| 2695 * @since 3.0 | |
| 2696 */ | |
| 2697 protected void fireSelectionChanged(int offset, int length) { | |
| 2698 if (redraws()) { | |
| 2699 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2700 if ((r !is null && !r.equals(fLastSentSelectionChange)) || r is null) { | |
| 2701 fLastSentSelectionChange= r; | |
| 2702 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2703 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2704 fireSelectionChanged(event); | |
| 2705 } | |
| 2706 } | |
| 2707 } | |
| 2708 | |
| 2709 /** | |
| 2710 * Sends the given event to all registered post selection changed listeners. | |
| 2711 * | |
| 2712 * @param event the selection event | |
| 2713 * @since 3.0 | |
| 2714 */ | |
| 2715 private void firePostSelectionChanged(SelectionChangedEvent event) { | |
| 2716 List listeners= fPostSelectionChangedListeners; | |
| 2717 if (listeners !is null) { | |
| 2718 listeners= new ArrayList(listeners); | |
| 2719 for (int i= 0; i < listeners.size(); i++) { | |
| 134 | 2720 ISelectionChangedListener l= cast(ISelectionChangedListener) listeners.get(i); |
| 129 | 2721 l.selectionChanged(event); |
| 2722 } | |
| 2723 } | |
| 2724 } | |
| 2725 | |
| 2726 /** | |
| 2727 * Sends out a mark selection changed event to all registered listeners. | |
| 2728 * | |
| 2729 * @param offset the offset of the mark selection in the visible document, the offset is <code>-1</code> if the mark was cleared | |
| 2730 * @param length the length of the mark selection, may be negative if the caret is before the mark. | |
| 2731 * @since 2.0 | |
| 2732 */ | |
| 2733 protected void markChanged(int offset, int length) { | |
| 2734 if (redraws()) { | |
| 2735 | |
| 2736 if (offset !is -1) { | |
| 2737 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2738 offset= r.getOffset(); | |
| 2739 length= r.getLength(); | |
| 2740 } | |
| 2741 | |
| 2742 ISelection selection= new MarkSelection(getDocument(), offset, length); | |
| 2743 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2744 fireSelectionChanged(event); | |
| 2745 } | |
| 2746 } | |
| 2747 | |
| 2748 | |
| 2749 //---- Text listeners | |
| 2750 | |
| 2751 /* | |
| 2752 * @see ITextViewer#addTextListener(ITextListener) | |
| 2753 */ | |
| 2754 public void addTextListener(ITextListener listener) { | |
| 2755 | |
| 2756 Assert.isNotNull(listener); | |
| 2757 | |
| 2758 if (fTextListeners is null) | |
| 2759 fTextListeners= new ArrayList(); | |
| 2760 | |
| 2761 if (!fTextListeners.contains(listener)) | |
| 2762 fTextListeners.add(listener); | |
| 2763 } | |
| 2764 | |
| 2765 /* | |
| 2766 * @see ITextViewer#removeTextListener(ITextListener) | |
| 2767 */ | |
| 2768 public void removeTextListener(ITextListener listener) { | |
| 2769 | |
| 2770 Assert.isNotNull(listener); | |
| 2771 | |
| 2772 if (fTextListeners !is null) { | |
| 2773 fTextListeners.remove(listener); | |
| 2774 if (fTextListeners.size() is 0) | |
| 2775 fTextListeners= null; | |
| 2776 } | |
| 2777 } | |
| 2778 | |
| 2779 /** | |
| 2780 * Informs all registered text listeners about the change specified by the | |
| 2781 * widget command. This method does not use a robust iterator. | |
| 2782 * | |
| 2783 * @param cmd the widget command translated into a text event sent to all text listeners | |
| 2784 */ | |
| 2785 protected void updateTextListeners(WidgetCommand cmd) { | |
| 2786 List textListeners= fTextListeners; | |
| 2787 if (textListeners !is null) { | |
| 2788 textListeners= new ArrayList(textListeners); | |
| 2789 DocumentEvent event= cmd.event; | |
| 138 | 2790 if ( cast(SlaveDocumentEvent)event ) |
| 134 | 2791 event= (cast(SlaveDocumentEvent) event).getMasterEvent(); |
| 129 | 2792 |
| 2793 TextEvent e= new TextEvent(cmd.start, cmd.length, cmd.text, cmd.preservedText, event, redraws()); | |
| 2794 for (int i= 0; i < textListeners.size(); i++) { | |
| 134 | 2795 ITextListener l= cast(ITextListener) textListeners.get(i); |
| 129 | 2796 l.textChanged(e); |
| 2797 } | |
| 2798 } | |
| 2799 } | |
| 2800 | |
| 2801 //---- Text input listeners | |
| 2802 | |
| 2803 /* | |
| 2804 * @see ITextViewer#addTextInputListener(ITextInputListener) | |
| 2805 */ | |
| 2806 public void addTextInputListener(ITextInputListener listener) { | |
| 2807 | |
| 2808 Assert.isNotNull(listener); | |
| 2809 | |
| 2810 if (fTextInputListeners is null) | |
| 2811 fTextInputListeners= new ArrayList(); | |
| 2812 | |
| 2813 if (!fTextInputListeners.contains(listener)) | |
| 2814 fTextInputListeners.add(listener); | |
| 2815 } | |
| 2816 | |
| 2817 /* | |
| 2818 * @see ITextViewer#removeTextInputListener(ITextInputListener) | |
| 2819 */ | |
| 2820 public void removeTextInputListener(ITextInputListener listener) { | |
| 2821 | |
| 2822 Assert.isNotNull(listener); | |
| 2823 | |
| 2824 if (fTextInputListeners !is null) { | |
| 2825 fTextInputListeners.remove(listener); | |
| 2826 if (fTextInputListeners.size() is 0) | |
| 2827 fTextInputListeners= null; | |
| 2828 } | |
| 2829 } | |
| 2830 | |
| 2831 /** | |
| 2832 * Informs all registered text input listeners about the forthcoming input change, | |
| 2833 * This method does not use a robust iterator. | |
| 2834 * | |
| 2835 * @param oldInput the old input document | |
| 2836 * @param newInput the new input document | |
| 2837 */ | |
| 2838 protected void fireInputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) { | |
| 2839 List listener= fTextInputListeners; | |
| 2840 if (listener !is null) { | |
| 2841 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2842 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2843 l.inputDocumentAboutToBeChanged(oldInput, newInput); |
| 2844 } | |
| 2845 } | |
| 2846 } | |
| 2847 | |
| 2848 /** | |
| 2849 * Informs all registered text input listeners about the successful input change, | |
| 2850 * This method does not use a robust iterator. | |
| 2851 * | |
| 2852 * @param oldInput the old input document | |
| 2853 * @param newInput the new input document | |
| 2854 */ | |
| 2855 protected void fireInputDocumentChanged(IDocument oldInput, IDocument newInput) { | |
| 2856 List listener= fTextInputListeners; | |
| 2857 if (listener !is null) { | |
| 2858 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2859 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2860 l.inputDocumentChanged(oldInput, newInput); |
| 2861 } | |
| 2862 } | |
| 2863 } | |
| 2864 | |
| 2865 //---- Document | |
| 2866 | |
| 2867 /* | |
| 2868 * @see Viewer#getInput() | |
| 2869 */ | |
| 2870 public Object getInput() { | |
| 2871 return getDocument(); | |
| 2872 } | |
| 2873 | |
| 2874 /* | |
| 2875 * @see ITextViewer#getDocument() | |
| 2876 */ | |
| 2877 public IDocument getDocument() { | |
| 2878 return fDocument; | |
| 2879 } | |
| 2880 | |
| 2881 /* | |
| 2882 * @see Viewer#setInput(Object) | |
| 2883 */ | |
| 2884 public void setInput(Object input) { | |
| 2885 | |
| 2886 IDocument document= null; | |
| 138 | 2887 if ( cast(IDocument)input ) |
| 134 | 2888 document= cast(IDocument) input; |
| 129 | 2889 |
| 2890 setDocument(document); | |
| 2891 } | |
| 2892 | |
| 2893 /* | |
| 2894 * @see ITextViewer#setDocument(IDocument) | |
| 2895 */ | |
| 2896 public void setDocument(IDocument document) { | |
| 2897 | |
| 2898 fReplaceTextPresentation= true; | |
| 2899 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2900 | |
| 2901 IDocument oldDocument= fDocument; | |
| 2902 fDocument= document; | |
| 2903 | |
| 2904 setVisibleDocument(fDocument); | |
| 2905 | |
| 2906 resetPlugins(); | |
| 2907 inputChanged(fDocument, oldDocument); | |
| 2908 | |
| 2909 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2910 fLastSentSelectionChange= null; | |
| 2911 fReplaceTextPresentation= false; | |
| 2912 } | |
| 2913 | |
| 2914 /* | |
| 2915 * @see ITextViewer#setDocument(IDocument, int, int) | |
| 2916 */ | |
| 2917 public void setDocument(IDocument document, int modelRangeOffset, int modelRangeLength) { | |
| 2918 | |
| 2919 fReplaceTextPresentation= true; | |
| 2920 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2921 | |
| 2922 IDocument oldDocument= fDocument; | |
| 2923 fDocument= document; | |
| 2924 | |
| 2925 try { | |
| 2926 | |
| 2927 IDocument slaveDocument= createSlaveDocument(document); | |
| 2928 updateSlaveDocument(slaveDocument, modelRangeOffset, modelRangeLength); | |
| 2929 setVisibleDocument(slaveDocument); | |
| 2930 | |
| 2931 } catch (BadLocationException x) { | |
| 2932 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_1")); //$NON-NLS-1$ | |
| 2933 } | |
| 2934 | |
| 2935 resetPlugins(); | |
| 2936 inputChanged(fDocument, oldDocument); | |
| 2937 | |
| 2938 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2939 fLastSentSelectionChange= null; | |
| 2940 fReplaceTextPresentation= false; | |
| 2941 } | |
| 2942 | |
| 2943 /** | |
| 2944 * Creates a slave document for the given document if there is a slave document manager | |
| 2945 * associated with this viewer. | |
| 2946 * | |
| 2947 * @param document the master document | |
| 2948 * @return the newly created slave document | |
| 2949 * @since 2.1 | |
| 2950 */ | |
| 2951 protected IDocument createSlaveDocument(IDocument document) { | |
| 2952 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 2953 if (manager !is null) { | |
| 2954 if (manager.isSlaveDocument(document)) | |
| 2955 return document; | |
| 2956 return manager.createSlaveDocument(document); | |
| 2957 } | |
| 2958 return document; | |
| 2959 } | |
| 2960 | |
| 2961 /** | |
| 2962 * Sets the given slave document to the specified range of its master document. | |
| 2963 * | |
| 2964 * @param visibleDocument the slave document | |
| 2965 * @param visibleRegionOffset the offset of the master document range | |
| 2966 * @param visibleRegionLength the length of the master document range | |
| 2967 * @return <code>true</code> if the slave has been adapted successfully | |
| 2968 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 2969 * @since 2.1 | |
| 2970 * @deprecated use <code>updateSlaveDocument</code> instead | |
| 2971 */ | |
|
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2972 protected bool updateVisibleDocument(IDocument visibleDocument, int visibleRegionOffset, int visibleRegionLength) { |
| 138 | 2973 if ( cast(ChildDocument)visibleDocument ) { |
| 134 | 2974 ChildDocument childDocument= cast(ChildDocument) visibleDocument; |
| 129 | 2975 |
| 2976 IDocument document= childDocument.getParentDocument(); | |
| 2977 int line= document.getLineOfOffset(visibleRegionOffset); | |
| 2978 int offset= document.getLineOffset(line); | |
| 2979 int length= (visibleRegionOffset - offset) + visibleRegionLength; | |
| 2980 | |
| 2981 Position parentRange= childDocument.getParentDocumentRange(); | |
| 2982 if (offset !is parentRange.getOffset() || length !is parentRange.getLength()) { | |
| 2983 childDocument.setParentDocumentRange(offset, length); | |
| 2984 return true; | |
| 2985 } | |
| 2986 } | |
| 2987 return false; | |
| 2988 } | |
| 2989 | |
| 2990 /** | |
| 2991 * Updates the given slave document to show the specified range of its master document. | |
| 2992 * | |
| 2993 * @param slaveDocument the slave document | |
| 2994 * @param modelRangeOffset the offset of the master document range | |
| 2995 * @param modelRangeLength the length of the master document range | |
| 2996 * @return <code>true</code> if the slave has been adapted successfully | |
| 2997 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 2998 * @since 3.0 | |
| 2999 */ | |
|
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3000 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) { |
| 129 | 3001 return updateVisibleDocument(slaveDocument, modelRangeOffset, modelRangeLength); |
| 3002 } | |
| 3003 | |
| 3004 | |
| 3005 | |
| 3006 //---- View ports | |
| 3007 | |
| 3008 /** | |
| 3009 * Initializes all listeners and structures required to set up view port listeners. | |
| 3010 */ | |
| 3011 private void initializeViewportUpdate() { | |
| 3012 | |
| 3013 if (fViewportGuard !is null) | |
| 3014 return; | |
| 3015 | |
| 3016 if (fTextWidget !is null) { | |
| 3017 | |
| 3018 fViewportGuard= new ViewportGuard(); | |
| 3019 fLastTopPixel= -1; | |
| 3020 | |
| 3021 fTextWidget.addKeyListener(fViewportGuard); | |
| 3022 fTextWidget.addMouseListener(fViewportGuard); | |
| 3023 | |
| 3024 fScroller= fTextWidget.getVerticalBar(); | |
| 3025 if (fScroller !is null) | |
| 3026 fScroller.addSelectionListener(fViewportGuard); | |
| 3027 } | |
| 3028 } | |
| 3029 | |
| 3030 /** | |
| 3031 * Removes all listeners and structures required to set up view port listeners. | |
| 3032 */ | |
| 3033 private void removeViewPortUpdate() { | |
| 3034 | |
| 3035 if (fTextWidget !is null) { | |
| 3036 | |
| 3037 fTextWidget.removeKeyListener(fViewportGuard); | |
| 3038 fTextWidget.removeMouseListener(fViewportGuard); | |
| 3039 | |
| 3040 if (fScroller !is null && !fScroller.isDisposed()) { | |
| 3041 fScroller.removeSelectionListener(fViewportGuard); | |
| 3042 fScroller= null; | |
| 3043 } | |
| 3044 | |
| 3045 fViewportGuard= null; | |
| 3046 } | |
| 3047 } | |
| 3048 | |
| 3049 /* | |
| 3050 * @see ITextViewer#addViewportListener(IViewportListener) | |
| 3051 */ | |
| 3052 public void addViewportListener(IViewportListener listener) { | |
| 3053 | |
| 3054 if (fViewportListeners is null) { | |
| 3055 fViewportListeners= new ArrayList(); | |
| 3056 initializeViewportUpdate(); | |
| 3057 } | |
| 3058 | |
| 3059 if (!fViewportListeners.contains(listener)) | |
| 3060 fViewportListeners.add(listener); | |
| 3061 } | |
| 3062 | |
| 3063 /* | |
| 3064 * @see ITextViewer#removeViewportListener(IVewportListener) | |
| 3065 */ | |
| 3066 public void removeViewportListener(IViewportListener listener) { | |
| 3067 if (fViewportListeners !is null) | |
| 3068 fViewportListeners.remove(listener); | |
| 3069 } | |
| 3070 | |
| 3071 /** | |
| 3072 * Checks whether the view port changed and if so informs all registered | |
| 3073 * listeners about the change. | |
| 3074 * | |
| 3075 * @param origin describes under which circumstances this method has been called. | |
| 3076 * | |
| 3077 * @see IViewportListener | |
| 3078 */ | |
| 3079 protected void updateViewportListeners(int origin) { | |
| 3080 | |
| 3081 if (redraws()) { | |
| 3082 int topPixel= fTextWidget.getTopPixel(); | |
| 3083 if (topPixel >= 0 && topPixel !is fLastTopPixel) { | |
| 3084 if (fViewportListeners !is null) { | |
| 3085 for (int i= 0; i < fViewportListeners.size(); i++) { | |
| 134 | 3086 IViewportListener l= cast(IViewportListener) fViewportListeners.get(i); |
| 129 | 3087 l.viewportChanged(topPixel); |
| 3088 } | |
| 3089 } | |
| 3090 fLastTopPixel= topPixel; | |
| 3091 } | |
| 3092 } | |
| 3093 } | |
| 3094 | |
| 3095 //---- scrolling and revealing | |
| 3096 | |
| 3097 /* | |
| 3098 * @see ITextViewer#getTopIndex() | |
| 3099 */ | |
| 3100 public int getTopIndex() { | |
| 3101 | |
| 3102 if (fTextWidget !is null) { | |
| 3103 int top= fTextWidget.getTopIndex(); | |
| 3104 return widgetLine2ModelLine(top); | |
| 3105 } | |
| 3106 | |
| 3107 return -1; | |
| 3108 } | |
| 3109 | |
| 3110 /* | |
| 3111 * @see ITextViewer#setTopIndex(int) | |
| 3112 */ | |
| 3113 public void setTopIndex(int index) { | |
| 3114 | |
| 3115 if (fTextWidget !is null) { | |
| 3116 | |
| 3117 int widgetLine= modelLine2WidgetLine(index); | |
| 3118 if (widgetLine is -1) | |
| 3119 widgetLine= getClosestWidgetLineForModelLine(index); | |
| 3120 | |
| 3121 if (widgetLine > -1) { | |
| 3122 fTextWidget.setTopIndex(widgetLine); | |
| 3123 updateViewportListeners(INTERNAL); | |
| 3124 } | |
| 3125 } | |
| 3126 } | |
| 3127 | |
| 3128 /** | |
| 3129 * Returns the number of lines that can fully fit into the viewport. This is computed by | |
| 3130 * dividing the widget's client area height by the widget's line height. The result is only | |
| 3131 * accurate if the widget does not use variable line heights - for that reason, clients should | |
| 3132 * not use this method any longer and use the client area height of the text widget to find out | |
| 3133 * how much content fits into it. | |
|
140
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diff
changeset
|
3134 * |
| 129 | 3135 * @return the view port height in lines |
| 3136 * @deprecated as of 3.2 | |
| 3137 */ | |
| 3138 protected int getVisibleLinesInViewport() { | |
| 3139 if (fTextWidget !is null) { | |
| 3140 Rectangle clArea= fTextWidget.getClientArea(); | |
| 3141 if (!clArea.isEmpty()) | |
| 3142 return clArea.height / fTextWidget.getLineHeight(); | |
| 3143 } | |
| 3144 return -1; | |
| 3145 } | |
| 3146 | |
| 3147 /* | |
| 3148 * @see ITextViewer#getBottomIndex() | |
| 3149 */ | |
| 3150 public int getBottomIndex() { | |
| 3151 | |
| 3152 if (fTextWidget is null) | |
| 3153 return -1; | |
|
140
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diff
changeset
|
3154 |
| 129 | 3155 int widgetBottom= JFaceTextUtil.getBottomIndex(fTextWidget); |
| 3156 return widgetLine2ModelLine(widgetBottom); | |
| 3157 } | |
| 3158 | |
| 3159 /* | |
| 3160 * @see ITextViewer#getTopIndexStartOffset() | |
| 3161 */ | |
| 3162 public int getTopIndexStartOffset() { | |
| 3163 | |
| 3164 if (fTextWidget !is null) { | |
| 3165 int top= fTextWidget.getTopIndex(); | |
| 3166 try { | |
| 3167 top= getVisibleDocument().getLineOffset(top); | |
| 3168 return widgetOffset2ModelOffset(top); | |
| 3169 } catch (BadLocationException ex) { | |
|
140
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|
3170 if (TRACE_ERRORS) |
|
26688fec6d23
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parents:
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diff
changeset
|
3171 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getTopIndexStartOffset")); //$NON-NLS-1$ |
| 129 | 3172 } |
| 3173 } | |
| 3174 | |
| 3175 return -1; | |
| 3176 } | |
| 3177 | |
| 3178 /* | |
| 3179 * @see ITextViewer#getBottomIndexEndOffset() | |
| 3180 */ | |
| 3181 public int getBottomIndexEndOffset() { | |
| 3182 try { | |
| 3183 | |
| 3184 IRegion line= getDocument().getLineInformation(getBottomIndex()); | |
| 3185 int bottomEndOffset= line.getOffset() + line.getLength() - 1; | |
| 3186 | |
| 3187 IRegion coverage= getModelCoverage(); | |
| 3188 if (coverage is null) | |
| 3189 return -1; | |
| 3190 | |
| 3191 int coverageEndOffset= coverage.getOffset() + coverage.getLength() - 1; | |
| 3192 return Math.min(coverageEndOffset, bottomEndOffset); | |
| 3193 | |
| 3194 } catch (BadLocationException ex) { | |
|
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parents:
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diff
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|
3195 if (TRACE_ERRORS) |
|
26688fec6d23
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parents:
138
diff
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|
3196 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getBottomIndexEndOffset")); //$NON-NLS-1$ |
| 129 | 3197 return getDocument().getLength() - 1; |
| 3198 } | |
| 3199 } | |
| 3200 | |
| 3201 /* | |
| 3202 * @see ITextViewer#revealRange(int, int) | |
| 3203 */ | |
| 3204 public void revealRange(int start, int length) { | |
| 3205 | |
| 3206 if (fTextWidget is null || !redraws()) | |
| 3207 return; | |
| 3208 | |
| 3209 IRegion modelRange= new Region(start, length); | |
| 3210 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange); | |
| 3211 if (widgetRange !is null) { | |
| 3212 | |
|
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parents:
138
diff
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|
3213 int[] range= [ widgetRange.getOffset(), widgetRange.getLength() ]; |
| 129 | 3214 validateSelectionRange(range); |
| 3215 if (range[0] >= 0) | |
| 3216 internalRevealRange(range[0], range[0] + range[1]); | |
| 3217 | |
| 3218 } else { | |
| 3219 | |
| 3220 IRegion coverage= getModelCoverage(); | |
| 3221 int cursor= (coverage is null || start < coverage.getOffset()) ? 0 : getVisibleDocument().getLength(); | |
| 3222 internalRevealRange(cursor, cursor); | |
| 3223 } | |
| 3224 } | |
| 3225 | |
| 3226 /** | |
| 3227 * Reveals the given range of the visible document. | |
| 3228 * | |
| 3229 * @param start the start offset of the range | |
| 3230 * @param end the end offset of the range | |
| 3231 */ | |
| 3232 protected void internalRevealRange(int start, int end) { | |
| 3233 | |
| 3234 try { | |
| 3235 | |
| 3236 IDocument doc= getVisibleDocument(); | |
| 3237 | |
| 3238 int startLine= doc.getLineOfOffset(start); | |
| 3239 int endLine= doc.getLineOfOffset(end); | |
| 3240 | |
| 3241 int top= fTextWidget.getTopIndex(); | |
| 3242 if (top > -1) { | |
| 3243 | |
| 3244 // scroll vertically | |
| 3245 int bottom= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 3246 int lines= bottom - top; | |
|
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parents:
138
diff
changeset
|
3247 |
| 129 | 3248 // if the widget is not scrollable as it is displaying the entire content |
| 3249 // setTopIndex won't have any effect. | |
| 3250 | |
| 3251 if (startLine >= top && startLine <= bottom && endLine >= top && endLine <= bottom ) { | |
| 3252 | |
| 3253 // do not scroll at all as it is already visible | |
| 3254 | |
| 3255 } else { | |
| 3256 | |
| 3257 int delta= Math.max(0, lines - (endLine - startLine)); | |
| 3258 fTextWidget.setTopIndex(startLine - delta/3); | |
| 3259 updateViewportListeners(INTERNAL); | |
| 3260 } | |
| 3261 | |
| 3262 // scroll horizontally | |
| 3263 | |
| 3264 if (endLine < startLine) { | |
| 3265 endLine += startLine; | |
| 3266 startLine= endLine - startLine; | |
| 3267 endLine -= startLine; | |
| 3268 } | |
| 3269 | |
| 3270 int startPixel= -1; | |
| 3271 int endPixel= -1; | |
| 3272 | |
| 3273 if (endLine > startLine) { | |
| 3274 // reveal the beginning of the range in the start line | |
| 3275 IRegion extent= getExtent(start, start); | |
| 3276 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3277 endPixel= startPixel; | |
| 3278 | |
| 3279 } else { | |
| 3280 IRegion extent= getExtent(start, end); | |
| 3281 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3282 endPixel= startPixel + extent.getLength(); | |
| 3283 } | |
| 3284 | |
| 3285 int visibleStart= fTextWidget.getHorizontalPixel(); | |
| 3286 int visibleEnd= visibleStart + fTextWidget.getClientArea().width; | |
| 3287 | |
| 3288 // scroll only if not yet visible | |
| 3289 if (startPixel < visibleStart || visibleEnd < endPixel) { | |
| 3290 | |
| 3291 // set buffer zone to 10 pixels | |
| 3292 int bufferZone= 10; | |
| 3293 | |
| 3294 int newOffset= visibleStart; | |
| 3295 | |
| 3296 int visibleWidth= visibleEnd - visibleStart; | |
| 3297 int selectionPixelWidth= endPixel - startPixel; | |
| 3298 | |
| 3299 if (startPixel < visibleStart) | |
| 3300 newOffset= startPixel; | |
| 3301 else if (selectionPixelWidth + bufferZone < visibleWidth) | |
| 3302 newOffset= endPixel + bufferZone - visibleWidth; | |
| 3303 else | |
| 3304 newOffset= startPixel; | |
| 3305 | |
| 134 | 3306 float index= (cast(float)newOffset) / (cast(float)getAverageCharWidth()); |
| 129 | 3307 |
| 3308 fTextWidget.setHorizontalIndex(Math.round(index)); | |
| 3309 } | |
| 3310 | |
| 3311 } | |
| 3312 } catch (BadLocationException e) { | |
| 3313 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_range")); //$NON-NLS-1$ | |
| 3314 } | |
| 3315 } | |
| 3316 | |
| 3317 /** | |
| 3318 * Returns the width of the text when being drawn into this viewer's widget. | |
| 3319 * | |
| 3320 * @param text the string to measure | |
| 3321 * @return the width of the presentation of the given string | |
| 3322 * @deprecated use <code>getWidthInPixels(int, int)</code> instead | |
| 3323 */ | |
| 3324 final protected int getWidthInPixels(String text) { | |
| 3325 GC gc= new GC(fTextWidget); | |
| 3326 gc.setFont(fTextWidget.getFont()); | |
| 3327 Point extent= gc.textExtent(text); | |
| 3328 gc.dispose(); | |
| 3329 return extent.x; | |
| 3330 } | |
| 3331 | |
| 3332 /** | |
| 3333 * Returns the region covered by the given start and end offset. | |
| 3334 * The result is relative to the upper left corner of the widget | |
| 3335 * client area. | |
| 3336 * | |
| 3337 * @param start offset relative to the start of this viewer's view port | |
| 3338 * 0 <= offset <= getCharCount() | |
| 3339 * @param end offset relative to the start of this viewer's view port | |
| 3340 * 0 <= offset <= getCharCount() | |
| 3341 * @return the region covered by start and end offset | |
| 3342 */ | |
| 3343 final protected IRegion getExtent(int start, int end) { | |
| 3344 if (end > 0 && start < end) { | |
| 3345 Rectangle bounds= fTextWidget.getTextBounds(start, end - 1); | |
| 3346 return new Region(bounds.x, bounds.width); | |
| 3347 } | |
|
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parents:
138
diff
changeset
|
3348 |
| 129 | 3349 return new Region(fTextWidget.getLocationAtOffset(start).x, 0); |
| 3350 } | |
| 3351 | |
| 3352 /** | |
| 3353 * Returns the width of the representation of a text range in the | |
| 3354 * visible region of the viewer's document as drawn in this viewer's | |
| 3355 * widget. | |
| 3356 * | |
| 3357 * @param offset the offset of the text range in the visible region | |
| 3358 * @param length the length of the text range in the visible region | |
| 3359 * @return the width of the presentation of the specified text range | |
| 3360 * @since 2.0 | |
| 3361 */ | |
| 3362 final protected int getWidthInPixels(int offset, int length) { | |
| 3363 return getExtent(offset, offset + length).getLength(); | |
| 3364 } | |
| 3365 | |
| 3366 /** | |
| 3367 * Returns the average character width of this viewer's widget. | |
| 3368 * | |
| 3369 * @return the average character width of this viewer's widget | |
| 3370 */ | |
| 3371 final protected int getAverageCharWidth() { | |
| 3372 return JFaceTextUtil.getAverageCharWidth(getTextWidget()); | |
| 3373 } | |
| 3374 | |
| 3375 /* | |
| 3376 * @see Viewer#refresh() | |
| 3377 */ | |
| 3378 public void refresh() { | |
| 3379 setDocument(getDocument()); | |
| 3380 } | |
| 3381 | |
| 3382 //---- visible range support | |
| 3383 | |
| 3384 /** | |
| 3385 * Returns the slave document manager | |
| 3386 * | |
| 3387 * @return the slave document manager | |
| 3388 * @since 2.1 | |
| 3389 */ | |
| 3390 protected ISlaveDocumentManager getSlaveDocumentManager() { | |
| 3391 if (fSlaveDocumentManager is null) | |
| 3392 fSlaveDocumentManager= createSlaveDocumentManager(); | |
| 3393 return fSlaveDocumentManager; | |
| 3394 } | |
| 3395 | |
| 3396 /** | |
| 3397 * Creates a new slave document manager. This implementation always | |
| 3398 * returns a <code>ChildDocumentManager</code>. | |
| 3399 * | |
| 3400 * @return ISlaveDocumentManager | |
| 3401 * @since 2.1 | |
| 3402 */ | |
| 3403 protected ISlaveDocumentManager createSlaveDocumentManager() { | |
| 3404 return new ChildDocumentManager(); | |
| 3405 } | |
| 3406 | |
| 3407 /* | |
| 3408 * @see dwtx.jface.text.ITextViewer#invalidateTextPresentation() | |
| 3409 */ | |
| 3410 public final void invalidateTextPresentation() { | |
| 3411 if (fVisibleDocument !is null) { | |
| 3412 fWidgetCommand.event= null; | |
| 3413 fWidgetCommand.start= 0; | |
| 3414 fWidgetCommand.length= fVisibleDocument.getLength(); | |
| 3415 fWidgetCommand.text= fVisibleDocument.get(); | |
| 3416 updateTextListeners(fWidgetCommand); | |
| 3417 } | |
| 3418 } | |
| 3419 | |
| 3420 /** | |
| 3421 * Invalidates the given range of the text presentation. | |
| 3422 * | |
| 3423 * @param offset the offset of the range to be invalidated | |
| 3424 * @param length the length of the range to be invalidated | |
| 3425 * @since 2.1 | |
| 3426 */ | |
| 3427 public final void invalidateTextPresentation(int offset, int length) { | |
| 3428 if (fVisibleDocument !is null) { | |
| 3429 | |
| 3430 IRegion widgetRange= modelRange2WidgetRange(new Region(offset, length)); | |
| 3431 if (widgetRange !is null) { | |
| 3432 | |
| 3433 fWidgetCommand.event= null; | |
| 3434 fWidgetCommand.start= widgetRange.getOffset(); | |
| 3435 fWidgetCommand.length= widgetRange.getLength(); | |
| 3436 | |
| 3437 try { | |
| 3438 fWidgetCommand.text= fVisibleDocument.get(widgetRange.getOffset(), widgetRange.getLength()); | |
| 3439 updateTextListeners(fWidgetCommand); | |
| 3440 } catch (BadLocationException x) { | |
| 3441 // can not happen because of previous checking | |
| 3442 } | |
| 3443 } | |
| 3444 } | |
| 3445 } | |
| 3446 | |
| 3447 /** | |
| 3448 * Initializes the text widget with the visual document and | |
| 3449 * invalidates the overall presentation. | |
| 3450 */ | |
| 3451 private void initializeWidgetContents() { | |
| 3452 | |
| 3453 if (fTextWidget !is null && fVisibleDocument !is null) { | |
| 3454 | |
| 3455 // set widget content | |
| 3456 if (fDocumentAdapter is null) | |
| 3457 fDocumentAdapter= createDocumentAdapter(); | |
| 3458 | |
| 3459 fDocumentAdapter.setDocument(fVisibleDocument); | |
| 3460 fTextWidget.setContent(fDocumentAdapter); | |
| 3461 | |
| 3462 // invalidate presentation | |
| 3463 invalidateTextPresentation(); | |
| 3464 } | |
| 3465 } | |
| 3466 | |
| 3467 /** | |
| 3468 * Frees the given document if it is a slave document. | |
| 3469 * | |
| 3470 * @param slave the potential slave document | |
| 3471 * @since 3.0 | |
| 3472 */ | |
| 3473 protected void freeSlaveDocument(IDocument slave) { | |
| 3474 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3475 if (manager !is null && manager.isSlaveDocument(slave)) | |
| 3476 manager.freeSlaveDocument(slave); | |
| 3477 } | |
| 3478 | |
| 3479 /** | |
| 3480 * Sets this viewer's visible document. The visible document represents the | |
| 3481 * visible region of the viewer's input document. | |
| 3482 * | |
| 3483 * @param document the visible document | |
| 3484 */ | |
| 3485 protected void setVisibleDocument(IDocument document) { | |
| 3486 | |
|
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3487 if (fVisibleDocument is document && cast(ChildDocument)fVisibleDocument ) { |
| 129 | 3488 // optimization for new child documents |
| 3489 return; | |
| 3490 } | |
| 3491 | |
| 3492 if (fVisibleDocument !is null) { | |
| 3493 if (fVisibleDocumentListener !is null) | |
| 3494 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 3495 if (fVisibleDocument !is document) | |
| 3496 freeSlaveDocument(fVisibleDocument); | |
| 3497 } | |
| 3498 | |
| 3499 fVisibleDocument= document; | |
| 3500 initializeDocumentInformationMapping(fVisibleDocument); | |
| 3501 | |
| 3502 initializeWidgetContents(); | |
| 3503 | |
| 3504 fFindReplaceDocumentAdapter= null; | |
| 3505 if (fVisibleDocument !is null && fVisibleDocumentListener !is null) | |
| 3506 fVisibleDocument.addDocumentListener(fVisibleDocumentListener); | |
| 3507 } | |
| 3508 | |
| 3509 /** | |
| 3510 * Hook method called when the visible document is about to be changed. | |
| 3511 * <p> | |
| 3512 * Subclasses may override. | |
| 3513 * | |
| 3514 * @param event the document event | |
| 3515 * @since 3.0 | |
| 3516 */ | |
| 3517 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { | |
| 3518 } | |
| 3519 | |
| 3520 /** | |
| 3521 * Hook method called when the visible document has been changed. | |
| 3522 * <p> | |
| 3523 * Subclasses may override. | |
| 3524 * | |
| 3525 * @param event the document event | |
| 3526 * @since 3.0 | |
| 3527 */ | |
| 3528 protected void handleVisibleDocumentChanged(DocumentEvent event) { | |
| 3529 } | |
| 3530 | |
| 3531 /** | |
| 3532 * Initializes the document information mapping between the given slave document and | |
| 3533 * its master document. | |
| 3534 * | |
| 3535 * @param visibleDocument the slave document | |
| 3536 * @since 2.1 | |
| 3537 */ | |
| 3538 protected void initializeDocumentInformationMapping(IDocument visibleDocument) { | |
| 3539 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3540 fInformationMapping= manager is null ? null : manager.createMasterSlaveMapping(visibleDocument); | |
| 3541 } | |
| 3542 | |
| 3543 /** | |
| 3544 * Returns the viewer's visible document. | |
| 3545 * | |
| 3546 * @return the viewer's visible document | |
| 3547 */ | |
| 3548 protected IDocument getVisibleDocument() { | |
| 3549 return fVisibleDocument; | |
| 3550 } | |
| 3551 | |
| 3552 /** | |
| 3553 * Returns the offset of the visible region. | |
| 3554 * | |
| 3555 * @return the offset of the visible region | |
| 3556 */ | |
| 3557 protected int _getVisibleRegionOffset() { | |
| 3558 | |
| 3559 IDocument document= getVisibleDocument(); | |
| 138 | 3560 if ( cast(ChildDocument)document ) { |
| 134 | 3561 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3562 return cdoc.getParentDocumentRange().getOffset(); |
| 3563 } | |
| 3564 | |
| 3565 return 0; | |
| 3566 } | |
| 3567 | |
| 3568 /* | |
| 3569 * @see ITextViewer#getVisibleRegion() | |
| 3570 */ | |
| 3571 public IRegion getVisibleRegion() { | |
| 3572 | |
| 3573 IDocument document= getVisibleDocument(); | |
| 138 | 3574 if ( cast(ChildDocument)document ) { |
| 134 | 3575 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 3576 return new Region(p.getOffset(), p.getLength()); |
| 3577 } | |
| 3578 | |
| 3579 return new Region(0, document is null ? 0 : document.getLength()); | |
| 3580 } | |
| 3581 | |
| 3582 /* | |
| 3583 * @see ITextViewer#overlapsWithVisibleRegion(int, int) | |
| 3584 */ | |
| 3585 public bool overlapsWithVisibleRegion(int start, int length) { | |
| 3586 IDocument document= getVisibleDocument(); | |
| 138 | 3587 if ( cast(ChildDocument)document ) { |
| 134 | 3588 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3589 return cdoc.getParentDocumentRange().overlapsWith(start, length); |
| 3590 } else if (document !is null) { | |
| 3591 int size= document.getLength(); | |
| 3592 return (start >= 0 && length >= 0 && start + length <= size); | |
| 3593 } | |
| 3594 return false; | |
| 3595 } | |
| 3596 | |
| 3597 /* | |
| 3598 * @see ITextViewer#setVisibleRegion(int, int) | |
| 3599 */ | |
| 3600 public void setVisibleRegion(int start, int length) { | |
| 3601 | |
| 3602 IRegion region= getVisibleRegion(); | |
| 3603 if (start is region.getOffset() && length is region.getLength()) { | |
| 3604 // nothing to change | |
| 3605 return; | |
| 3606 } | |
| 3607 | |
| 3608 setRedraw(false); | |
| 3609 try { | |
| 3610 | |
| 3611 IDocument slaveDocument= createSlaveDocument(getVisibleDocument()); | |
| 3612 if (updateSlaveDocument(slaveDocument, start, length)) | |
| 3613 setVisibleDocument(slaveDocument); | |
| 3614 | |
| 3615 } catch (BadLocationException x) { | |
| 3616 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_2")); //$NON-NLS-1$ | |
| 3617 } finally { | |
| 3618 setRedraw(true); | |
| 3619 } | |
| 3620 } | |
| 3621 | |
| 3622 /* | |
| 3623 * @see ITextViewer#resetVisibleRegion() | |
| 3624 */ | |
| 3625 public void resetVisibleRegion() { | |
| 3626 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3627 if (manager !is null) { | |
| 3628 IDocument slave= getVisibleDocument(); | |
| 3629 IDocument master= manager.getMasterDocument(slave); | |
| 3630 if (master !is null) { | |
| 3631 setVisibleDocument(master); | |
| 3632 manager.freeSlaveDocument(slave); | |
| 3633 } | |
| 3634 } | |
| 3635 } | |
| 3636 | |
| 3637 | |
| 3638 //-------------------------------------- | |
| 3639 | |
| 3640 /* | |
| 3641 * @see ITextViewer#setTextDoubleClickStrategy(ITextDoubleClickStrategy, String) | |
| 3642 */ | |
| 3643 public void setTextDoubleClickStrategy(ITextDoubleClickStrategy strategy, String contentType) { | |
| 3644 | |
| 3645 if (strategy !is null) { | |
| 3646 if (fDoubleClickStrategies is null) | |
| 3647 fDoubleClickStrategies= new HashMap(); | |
| 3648 fDoubleClickStrategies.put(contentType, strategy); | |
| 3649 } else if (fDoubleClickStrategies !is null) | |
| 3650 fDoubleClickStrategies.remove(contentType); | |
| 3651 } | |
| 3652 | |
| 3653 /** | |
| 3654 * Selects from the given map the one which is registered under | |
| 3655 * the content type of the partition in which the given offset is located. | |
| 3656 * | |
| 3657 * @param plugins the map from which to choose | |
| 3658 * @param offset the offset for which to find the plug-in | |
| 3659 * @return the plug-in registered under the offset's content type | |
| 3660 */ | |
| 3661 protected Object selectContentTypePlugin(int offset, Map plugins) { | |
| 3662 try { | |
| 3663 return selectContentTypePlugin(TextUtilities.getContentType(getDocument(), getDocumentPartitioning(), offset, true), plugins); | |
| 3664 } catch (BadLocationException x) { | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3665 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3666 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 3667 } |
| 3668 return null; | |
| 3669 } | |
| 3670 | |
| 3671 /** | |
| 3672 * Selects from the given <code>plug-ins</code> this one which is | |
| 3673 * registered for the given content <code>type</code>. | |
| 3674 * | |
| 3675 * @param type the type to be used as lookup key | |
| 3676 * @param plugins the table to be searched | |
| 3677 * @return the plug-in in the map for the given content type | |
| 3678 */ | |
| 3679 private Object selectContentTypePlugin(String type, Map plugins) { | |
| 3680 | |
| 3681 if (plugins is null) | |
| 3682 return null; | |
| 3683 | |
| 3684 return plugins.get(type); | |
| 3685 } | |
| 3686 | |
| 3687 /** | |
| 3688 * Hook called on receipt of a <code>VerifyEvent</code>. The event has | |
| 3689 * been translated into a <code>DocumentCommand</code> which can now be | |
| 3690 * manipulated by interested parties. By default, the hook forwards the command | |
| 3691 * to the installed instances of <code>IAutoEditStrategy</code>. | |
| 3692 * | |
| 3693 * @param command the document command representing the verify event | |
| 3694 */ | |
| 3695 protected void customizeDocumentCommand(DocumentCommand command) { | |
| 3696 if (isIgnoringAutoEditStrategies()) | |
| 3697 return; | |
|
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parents:
138
diff
changeset
|
3698 |
| 129 | 3699 IDocument document= getDocument(); |
|
140
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parents:
138
diff
changeset
|
3700 |
| 129 | 3701 if (fTabsToSpacesConverter !is null) |
| 3702 fTabsToSpacesConverter.customizeDocumentCommand(document, command); | |
| 3703 | |
| 134 | 3704 List strategies= cast(List) selectContentTypePlugin(command.offset, fAutoIndentStrategies); |
| 129 | 3705 if (strategies is null) |
| 3706 return; | |
| 3707 | |
| 3708 switch (strategies.size()) { | |
| 3709 // optimization | |
| 3710 case 0: | |
| 3711 break; | |
| 3712 | |
| 3713 case 1: | |
| 134 | 3714 (cast(IAutoEditStrategy) strategies.iterator().next()).customizeDocumentCommand(document, command); |
| 129 | 3715 break; |
| 3716 | |
| 3717 // make iterator robust against adding/removing strategies from within strategies | |
| 3718 default: | |
| 3719 strategies= new ArrayList(strategies); | |
| 3720 for (final Iterator iterator= strategies.iterator(); iterator.hasNext(); ) | |
| 134 | 3721 (cast(IAutoEditStrategy) iterator.next()).customizeDocumentCommand(document, command); |
| 129 | 3722 |
| 3723 break; | |
| 3724 } | |
| 3725 } | |
| 3726 | |
| 3727 /** | |
| 3728 * Handles the verify event issued by the viewer's text widget. | |
| 3729 * | |
| 3730 * @see VerifyListener#verifyText(VerifyEvent) | |
| 3731 * @param e the verify event | |
| 3732 */ | |
| 3733 protected void handleVerifyEvent(VerifyEvent e) { | |
| 3734 | |
| 3735 if (fEventConsumer !is null) { | |
| 3736 fEventConsumer.processEvent(e); | |
| 3737 if (!e.doit) | |
| 3738 return; | |
| 3739 } | |
| 3740 | |
| 3741 IRegion modelRange= event2ModelRange(e); | |
| 3742 fDocumentCommand.setEvent(e, modelRange); | |
| 3743 customizeDocumentCommand(fDocumentCommand); | |
| 3744 if (!fDocumentCommand.fillEvent(e, modelRange)) { | |
| 3745 | |
| 3746 bool compoundChange= fDocumentCommand.getCommandCount() > 1; | |
| 3747 try { | |
| 3748 | |
| 3749 fVerifyListener.forward(false); | |
| 3750 | |
| 3751 if (compoundChange && fUndoManager !is null) | |
| 3752 fUndoManager.beginCompoundChange(); | |
| 3753 | |
| 3754 fDocumentCommand.execute(getDocument()); | |
| 3755 | |
| 3756 if (fTextWidget !is null) { | |
| 3757 int documentCaret= fDocumentCommand.caretOffset; | |
| 3758 if (documentCaret is -1) { | |
| 3759 // old behavior of document command | |
| 3760 documentCaret= fDocumentCommand.offset + (fDocumentCommand.text is null ? 0 : fDocumentCommand.text.length()); | |
| 3761 } | |
| 3762 | |
| 3763 int widgetCaret= modelOffset2WidgetOffset(documentCaret); | |
| 3764 if (widgetCaret is -1) { | |
| 3765 // try to move it to the closest spot | |
| 3766 IRegion region= getModelCoverage(); | |
| 3767 if (region !is null) { | |
| 3768 if (documentCaret <= region.getOffset()) | |
| 3769 widgetCaret= 0; | |
| 3770 else if (documentCaret >= region.getOffset() + region.getLength()) | |
| 3771 widgetCaret= getVisibleRegion().getLength(); | |
| 3772 } | |
| 3773 } | |
| 3774 | |
| 3775 if (widgetCaret !is -1) { | |
| 3776 // there is a valid widget caret | |
| 3777 fTextWidget.setCaretOffset(widgetCaret); | |
| 3778 } | |
| 3779 | |
| 3780 fTextWidget.showSelection(); | |
| 3781 } | |
| 3782 } catch (BadLocationException x) { | |
| 3783 | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3784 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3785 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.verifyText")); //$NON-NLS-1$ |
| 129 | 3786 |
| 3787 } finally { | |
| 3788 | |
| 3789 if (compoundChange && fUndoManager !is null) | |
| 3790 fUndoManager.endCompoundChange(); | |
| 3791 | |
| 3792 fVerifyListener.forward(true); | |
| 3793 | |
| 3794 } | |
| 3795 } | |
| 3796 } | |
| 3797 | |
| 3798 //---- text manipulation | |
| 3799 | |
| 3800 /** | |
| 3801 * Returns whether the marked region of this viewer is empty. | |
| 3802 * | |
| 3803 * @return <code>true</code> if the marked region of this viewer is empty, otherwise <code>false</code> | |
| 3804 * @since 2.0 | |
| 3805 */ | |
| 3806 private bool isMarkedRegionEmpty() { | |
| 3807 return | |
| 3808 fTextWidget is null || | |
| 3809 fMarkPosition is null || | |
| 3810 fMarkPosition.isDeleted() || | |
| 3811 modelRange2WidgetRange(fMarkPosition) is null; | |
| 3812 } | |
| 3813 | |
| 3814 /* | |
| 3815 * @see ITextViewer#canDoOperation(int) | |
| 3816 */ | |
| 3817 public bool canDoOperation(int operation) { | |
| 3818 | |
| 3819 if (fTextWidget is null || !redraws()) | |
| 3820 return false; | |
| 3821 | |
| 3822 switch (operation) { | |
| 3823 case CUT: | |
| 3824 return isEditable() &&(fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty()); | |
| 3825 case COPY: | |
| 3826 return fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty(); | |
| 3827 case DELETE: | |
| 3828 case PASTE: | |
| 3829 return isEditable(); | |
| 3830 case SELECT_ALL: | |
| 3831 return true; | |
| 3832 case SHIFT_LEFT: | |
| 3833 case SHIFT_RIGHT: | |
| 3834 return isEditable() && fIndentChars !is null && areMultipleLinesSelected(); | |
| 3835 case PREFIX: | |
| 3836 case STRIP_PREFIX: | |
| 3837 return isEditable() && fDefaultPrefixChars !is null; | |
| 3838 case UNDO: | |
| 3839 return fUndoManager !is null && fUndoManager.undoable(); | |
| 3840 case REDO: | |
| 3841 return fUndoManager !is null && fUndoManager.redoable(); | |
| 3842 case PRINT: | |
| 3843 return isPrintable(); | |
| 3844 } | |
| 3845 | |
| 3846 return false; | |
| 3847 } | |
| 3848 | |
| 3849 /* | |
| 3850 * @see ITextViewer#doOperation(int) | |
| 3851 */ | |
| 3852 public void doOperation(int operation) { | |
| 3853 | |
| 3854 if (fTextWidget is null || !redraws()) | |
| 3855 return; | |
| 3856 | |
| 3857 Point selection= null; | |
| 3858 | |
| 3859 switch (operation) { | |
| 3860 | |
| 3861 case UNDO: | |
| 3862 if (fUndoManager !is null) { | |
| 3863 ignoreAutoEditStrategies(true); | |
| 3864 fUndoManager.undo(); | |
| 3865 ignoreAutoEditStrategies(false); | |
| 3866 } | |
| 3867 break; | |
| 3868 case REDO: | |
| 3869 if (fUndoManager !is null) { | |
| 3870 ignoreAutoEditStrategies(true); | |
| 3871 fUndoManager.redo(); | |
| 3872 ignoreAutoEditStrategies(false); | |
| 3873 } | |
| 3874 break; | |
| 3875 case CUT: | |
| 3876 if (fTextWidget.getSelectionCount() is 0) | |
| 3877 copyMarkedRegion(true); | |
| 3878 else | |
| 3879 fTextWidget.cut(); | |
| 3880 | |
| 3881 selection= fTextWidget.getSelectionRange(); | |
| 3882 fireSelectionChanged(selection.x, selection.y); | |
| 3883 | |
| 3884 break; | |
| 3885 case COPY: | |
| 3886 if (fTextWidget.getSelectionCount() is 0) | |
| 3887 copyMarkedRegion(false); | |
| 3888 else | |
| 3889 fTextWidget.copy(); | |
| 3890 break; | |
| 3891 case PASTE: | |
| 3892 // ignoreAutoEditStrategies(true); | |
| 3893 fTextWidget.paste(); | |
| 3894 selection= fTextWidget.getSelectionRange(); | |
| 3895 fireSelectionChanged(selection.x, selection.y); | |
| 3896 // ignoreAutoEditStrategies(false); | |
| 3897 break; | |
| 3898 case DELETE: | |
| 3899 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 3900 selection= fTextWidget.getSelectionRange(); | |
| 3901 fireSelectionChanged(selection.x, selection.y); | |
| 3902 break; | |
| 3903 case SELECT_ALL: { | |
| 3904 if (getDocument() !is null) | |
| 3905 setSelectedRange(0, getDocument().getLength()); | |
| 3906 break; | |
| 3907 } | |
| 3908 case SHIFT_RIGHT: | |
| 3909 shift(false, true, false); | |
| 3910 break; | |
| 3911 case SHIFT_LEFT: | |
| 3912 shift(false, false, false); | |
| 3913 break; | |
| 3914 case PREFIX: | |
| 3915 shift(true, true, true); | |
| 3916 break; | |
| 3917 case STRIP_PREFIX: | |
| 3918 shift(true, false, true); | |
| 3919 break; | |
| 3920 case PRINT: | |
| 3921 print(); | |
| 3922 break; | |
| 3923 } | |
| 3924 } | |
| 3925 | |
| 3926 /** | |
| 3927 * Tells this viewer whether the registered auto edit strategies should be ignored. | |
| 3928 * | |
| 3929 * @param ignore <code>true</code> if the strategies should be ignored. | |
| 3930 * @since 2.1 | |
| 3931 */ | |
| 3932 protected void ignoreAutoEditStrategies(bool ignore) { | |
| 3933 if (fIgnoreAutoIndent is ignore) | |
| 3934 return; | |
| 3935 | |
| 3936 fIgnoreAutoIndent= ignore; | |
| 3937 | |
| 3938 IDocument document= getDocument(); | |
| 138 | 3939 if ( cast(IDocumentExtension2)document ) { |
| 134 | 3940 IDocumentExtension2 extension= cast(IDocumentExtension2) document; |
| 129 | 3941 if (ignore) |
| 3942 extension.ignorePostNotificationReplaces(); | |
| 3943 else | |
| 3944 extension.acceptPostNotificationReplaces(); | |
| 3945 } | |
| 3946 } | |
| 3947 | |
| 3948 /** | |
| 3949 * Returns whether this viewer ignores the registered auto edit strategies. | |
| 3950 * | |
| 3951 * @return <code>true</code> if the strategies are ignored | |
| 3952 * @since 2.1 | |
| 3953 */ | |
| 3954 protected bool isIgnoringAutoEditStrategies() { | |
| 3955 return fIgnoreAutoIndent; | |
| 3956 } | |
| 3957 | |
| 3958 /* | |
| 3959 * @see ITextOperationTargetExtension#enableOperation(int, bool) | |
| 3960 * @since 2.0 | |
| 3961 */ | |
| 3962 public void enableOperation(int operation, bool enable) { | |
| 3963 /* | |
| 3964 * NO-OP by default. | |
| 3965 * Will be changed to regularly disable the known operations. | |
| 3966 */ | |
| 3967 } | |
| 3968 | |
| 3969 /** | |
| 3970 * Copies/cuts the marked region. | |
| 3971 * | |
| 3972 * @param delete <code>true</code> if the region should be deleted rather than copied. | |
| 3973 * @since 2.0 | |
| 3974 */ | |
|
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138
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|
3975 protected void copyMarkedRegion(bool delete_) { |
| 129 | 3976 |
| 3977 if (fTextWidget is null) | |
| 3978 return; | |
| 3979 | |
| 3980 if (fMarkPosition is null || fMarkPosition.isDeleted() || modelRange2WidgetRange(fMarkPosition) is null) | |
| 3981 return; | |
| 3982 | |
| 3983 int widgetMarkOffset= modelOffset2WidgetOffset(fMarkPosition.offset); | |
| 3984 Point selection= fTextWidget.getSelection(); | |
| 3985 if (selection.x <= widgetMarkOffset) | |
| 3986 fTextWidget.setSelection(selection.x, widgetMarkOffset); | |
| 3987 else | |
| 3988 fTextWidget.setSelection(widgetMarkOffset, selection.x); | |
| 3989 | |
|
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diff
changeset
|
3990 if (delete_) { |
| 129 | 3991 fTextWidget.cut(); |
| 3992 } else { | |
| 3993 fTextWidget.copy(); | |
| 3994 fTextWidget.setSelection(selection.x); // restore old cursor position | |
| 3995 } | |
| 3996 } | |
| 3997 | |
| 3998 /** | |
| 3999 * Deletes the current selection. If the selection has the length 0 | |
| 4000 * the selection is automatically extended to the right - either by 1 | |
| 4001 * or by the length of line delimiter if at the end of a line. | |
| 4002 * | |
| 4003 * @deprecated use <code>StyledText.invokeAction</code> instead | |
| 4004 */ | |
| 4005 protected void deleteText() { | |
| 4006 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 4007 } | |
| 4008 | |
| 4009 /** | |
| 4010 * A block is selected if the character preceding the start of the | |
| 4011 * selection is a new line character. | |
| 4012 * | |
| 4013 * @return <code>true</code> if a block is selected | |
| 4014 */ | |
| 4015 protected bool isBlockSelected() { | |
| 4016 | |
| 4017 Point s= getSelectedRange(); | |
| 4018 if (s.y is 0) | |
| 4019 return false; | |
| 4020 | |
| 4021 try { | |
| 4022 | |
| 4023 IDocument document= getDocument(); | |
| 4024 int line= document.getLineOfOffset(s.x); | |
| 4025 int start= document.getLineOffset(line); | |
| 4026 return (s.x is start); | |
| 4027 | |
| 4028 } catch (BadLocationException x) { | |
| 4029 } | |
| 4030 | |
| 4031 return false; | |
| 4032 } | |
| 4033 | |
| 4034 /** | |
| 4035 * Returns <code>true</code> if one line is completely selected or if multiple lines are selected. | |
| 4036 * Being completely selected means that all characters except the new line characters are | |
| 4037 * selected. | |
| 4038 * | |
| 4039 * @return <code>true</code> if one or multiple lines are selected | |
| 4040 * @since 2.0 | |
| 4041 */ | |
| 4042 protected bool areMultipleLinesSelected() { | |
| 4043 Point s= getSelectedRange(); | |
| 4044 if (s.y is 0) | |
| 4045 return false; | |
| 4046 | |
| 4047 try { | |
| 4048 | |
| 4049 IDocument document= getDocument(); | |
| 4050 int startLine= document.getLineOfOffset(s.x); | |
| 4051 int endLine= document.getLineOfOffset(s.x + s.y); | |
| 4052 IRegion line= document.getLineInformation(startLine); | |
| 4053 return startLine !is endLine || (s.x is line.getOffset() && s.y is line.getLength()); | |
| 4054 | |
| 4055 } catch (BadLocationException x) { | |
| 4056 } | |
| 4057 | |
| 4058 return false; | |
| 4059 } | |
| 4060 | |
| 4061 /** | |
| 4062 * Returns the index of the first line whose start offset is in the given text range. | |
| 4063 * | |
| 4064 * @param region the text range in characters where to find the line | |
| 4065 * @return the first line whose start index is in the given range, -1 if there is no such line | |
| 4066 */ | |
| 4067 private int getFirstCompleteLineOfRegion(IRegion region) { | |
| 4068 | |
| 4069 try { | |
| 4070 | |
| 4071 IDocument d= getDocument(); | |
| 4072 | |
| 4073 int startLine= d.getLineOfOffset(region.getOffset()); | |
| 4074 | |
| 4075 int offset= d.getLineOffset(startLine); | |
| 4076 if (offset >= region.getOffset()) | |
| 4077 return startLine; | |
| 4078 | |
| 4079 offset= d.getLineOffset(startLine + 1); | |
| 4080 return (offset > region.getOffset() + region.getLength() ? -1 : startLine + 1); | |
| 4081 | |
| 4082 } catch (BadLocationException x) { | |
|
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parents:
138
diff
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|
4083 if (TRACE_ERRORS) |
|
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parents:
138
diff
changeset
|
4084 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getFirstCompleteLineOfRegion")); //$NON-NLS-1$ |
| 129 | 4085 } |
| 4086 | |
| 4087 return -1; | |
| 4088 } | |
| 4089 | |
| 4090 | |
| 4091 /** | |
| 4092 * Creates a region describing the text block (something that starts at | |
| 4093 * the beginning of a line) completely containing the current selection. | |
| 4094 * | |
| 4095 * @param selection the selection to use | |
| 4096 * @return the region describing the text block comprising the given selection | |
| 4097 * @since 2.0 | |
| 4098 */ | |
| 4099 private IRegion getTextBlockFromSelection(Point selection) { | |
| 4100 | |
| 4101 try { | |
| 4102 IDocument document= getDocument(); | |
| 4103 IRegion line= document.getLineInformationOfOffset(selection.x); | |
| 4104 int length= selection.y is 0 ? line.getLength() : selection.y + (selection.x - line.getOffset()); | |
| 4105 return new Region(line.getOffset(), length); | |
| 4106 | |
| 4107 } catch (BadLocationException x) { | |
| 4108 } | |
| 4109 | |
| 4110 return null; | |
| 4111 } | |
| 4112 | |
| 4113 /** | |
| 4114 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4115 * The prefixes must start at the beginning of the line. | |
| 4116 * | |
| 4117 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4118 * @param right says whether to shift to the right or the left | |
| 4119 * | |
| 4120 * @deprecated use shift(bool, bool, bool) instead | |
| 4121 */ | |
| 4122 protected void shift(bool useDefaultPrefixes, bool right) { | |
| 4123 shift(useDefaultPrefixes, right, false); | |
| 4124 } | |
| 4125 | |
| 4126 /** | |
| 4127 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4128 * If white space should be ignored the prefix characters must not be at the beginning of | |
| 4129 * the line when shifting to the left. There may be whitespace in front of the prefixes. | |
| 4130 * | |
| 4131 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4132 * @param right says whether to shift to the right or the left | |
| 4133 * @param ignoreWhitespace says whether whitespace in front of prefixes is allowed | |
| 4134 * @since 2.0 | |
| 4135 */ | |
| 4136 protected void shift(bool useDefaultPrefixes, bool right, bool ignoreWhitespace) { | |
| 4137 if (fUndoManager !is null) | |
| 4138 fUndoManager.beginCompoundChange(); | |
|
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parents:
138
diff
changeset
|
4139 |
| 129 | 4140 IDocument d= getDocument(); |
| 4141 Map partitioners= null; | |
| 4142 DocumentRewriteSession rewriteSession= null; | |
| 4143 try { | |
| 4144 Point selection= getSelectedRange(); | |
| 4145 IRegion block= getTextBlockFromSelection(selection); | |
| 4146 ITypedRegion[] regions= TextUtilities.computePartitioning(d, getDocumentPartitioning(), block.getOffset(), block.getLength(), false); | |
| 4147 | |
| 4148 int lineCount= 0; | |
| 4149 int[] lines= new int[regions.length * 2]; // [start line, end line, start line, end line, ...] | |
| 4150 for (int i= 0, j= 0; i < regions.length; i++, j+= 2) { | |
| 4151 // start line of region | |
| 4152 lines[j]= getFirstCompleteLineOfRegion(regions[i]); | |
| 4153 // end line of region | |
| 4154 int length= regions[i].getLength(); | |
| 4155 int offset= regions[i].getOffset() + length; | |
| 4156 if (length > 0) | |
| 4157 offset--; | |
| 4158 lines[j + 1]= (lines[j] is -1 ? -1 : d.getLineOfOffset(offset)); | |
| 4159 lineCount += lines[j + 1] - lines[j] + 1; | |
| 4160 } | |
| 4161 | |
| 138 | 4162 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4163 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4164 rewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 4165 } else { | |
| 4166 setRedraw(false); | |
| 4167 startSequentialRewriteMode(true); | |
| 4168 } | |
| 4169 if (lineCount >= 20) | |
| 4170 partitioners= TextUtilities.removeDocumentPartitioners(d); | |
| 4171 | |
| 4172 // Perform the shift operation. | |
| 4173 Map map= (useDefaultPrefixes ? fDefaultPrefixChars : fIndentChars); | |
| 4174 for (int i= 0, j= 0; i < regions.length; i++, j += 2) { | |
| 156 | 4175 String[] prefixes= stringArrayFromObject(selectContentTypePlugin(regions[i].getType(), map)); |
| 129 | 4176 if (prefixes !is null && prefixes.length > 0 && lines[j] >= 0 && lines[j + 1] >= 0) { |
| 4177 if (right) | |
| 4178 shiftRight(lines[j], lines[j + 1], prefixes[0]); | |
| 4179 else | |
| 4180 shiftLeft(lines[j], lines[j + 1], prefixes, ignoreWhitespace); | |
| 4181 } | |
| 4182 } | |
| 4183 | |
| 4184 } catch (BadLocationException x) { | |
|
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parents:
138
diff
changeset
|
4185 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
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changeset
|
4186 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.shift_1")); //$NON-NLS-1$ |
| 129 | 4187 |
| 4188 } finally { | |
| 4189 | |
| 4190 if (partitioners !is null) | |
| 4191 TextUtilities.addDocumentPartitioners(d, partitioners); | |
|
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parents:
138
diff
changeset
|
4192 |
| 138 | 4193 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4194 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4195 extension.stopRewriteSession(rewriteSession); |
| 4196 } else { | |
| 4197 stopSequentialRewriteMode(); | |
| 4198 setRedraw(true); | |
| 4199 } | |
| 4200 | |
| 4201 if (fUndoManager !is null) | |
| 4202 fUndoManager.endCompoundChange(); | |
| 4203 } | |
| 4204 } | |
| 4205 | |
| 4206 /** | |
| 4207 * Shifts the specified lines to the right inserting the given prefix | |
| 4208 * at the beginning of each line | |
| 4209 * | |
| 4210 * @param prefix the prefix to be inserted | |
| 4211 * @param startLine the first line to shift | |
| 4212 * @param endLine the last line to shift | |
| 4213 * @since 2.0 | |
| 4214 */ | |
| 4215 private void shiftRight(int startLine, int endLine, String prefix) { | |
| 4216 | |
| 4217 try { | |
| 4218 | |
| 4219 IDocument d= getDocument(); | |
| 4220 while (startLine <= endLine) { | |
| 4221 d.replace(d.getLineOffset(startLine++), 0, prefix); | |
| 4222 } | |
| 4223 | |
| 4224 } catch (BadLocationException x) { | |
|
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parents:
138
diff
changeset
|
4225 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
4226 System.out_.println("TextViewer.shiftRight: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4227 } |
| 4228 } | |
| 4229 | |
| 4230 /** | |
| 4231 * Shifts the specified lines to the right or to the left. On shifting to the right | |
| 4232 * it insert <code>prefixes[0]</code> at the beginning of each line. On shifting to the | |
| 4233 * left it tests whether each of the specified lines starts with one of the specified | |
| 4234 * prefixes and if so, removes the prefix. | |
| 4235 * | |
| 4236 * @param startLine the first line to shift | |
| 4237 * @param endLine the last line to shift | |
| 4238 * @param prefixes the prefixes to be used for shifting | |
| 4239 * @param ignoreWhitespace <code>true</code> if whitespace should be ignored, <code>false</code> otherwise | |
| 4240 * @since 2.0 | |
| 4241 */ | |
| 4242 private void shiftLeft(int startLine, int endLine, String[] prefixes, bool ignoreWhitespace) { | |
| 4243 | |
| 4244 IDocument d= getDocument(); | |
| 4245 | |
| 4246 try { | |
| 4247 | |
| 4248 IRegion[] occurrences= new IRegion[endLine - startLine + 1]; | |
| 4249 | |
| 4250 // find all the first occurrences of prefix in the given lines | |
| 4251 for (int i= 0; i < occurrences.length; i++) { | |
| 4252 | |
| 4253 IRegion line= d.getLineInformation(startLine + i); | |
| 4254 String text= d.get(line.getOffset(), line.getLength()); | |
| 4255 | |
| 4256 int index= -1; | |
| 4257 int[] found= TextUtilities.indexOf(prefixes, text, 0); | |
| 4258 if (found[0] !is -1) { | |
| 4259 if (ignoreWhitespace) { | |
| 4260 String s= d.get(line.getOffset(), found[0]); | |
| 4261 s= s.trim(); | |
| 4262 if (s.length() is 0) | |
| 4263 index= line.getOffset() + found[0]; | |
| 4264 } else if (found[0] is 0) | |
| 4265 index= line.getOffset(); | |
| 4266 } | |
| 4267 | |
| 4268 if (index > -1) { | |
| 4269 // remember where prefix is in line, so that it can be removed | |
| 4270 int length= prefixes[found[1]].length(); | |
| 4271 if (length is 0 && !ignoreWhitespace && line.getLength() > 0) { | |
| 4272 // found a non-empty line which cannot be shifted | |
| 4273 return; | |
| 4274 } | |
| 4275 occurrences[i]= new Region(index, length); | |
| 4276 } else { | |
| 4277 // found a line which cannot be shifted | |
| 4278 return; | |
| 4279 } | |
| 4280 } | |
| 4281 | |
| 4282 // OK - change the document | |
| 4283 int decrement= 0; | |
| 4284 for (int i= 0; i < occurrences.length; i++) { | |
| 4285 IRegion r= occurrences[i]; | |
| 4286 d.replace(r.getOffset() - decrement, r.getLength(), ""); //$NON-NLS-1$ | |
| 4287 decrement += r.getLength(); | |
| 4288 } | |
| 4289 | |
| 4290 } catch (BadLocationException x) { | |
|
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parents:
138
diff
changeset
|
4291 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
4292 System.out_.println("TextViewer.shiftLeft: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4293 } |
| 4294 } | |
| 4295 | |
| 4296 /** | |
| 4297 * Returns whether the shown text can be printed. | |
| 4298 * | |
| 4299 * @return the viewer's printable mode | |
| 4300 */ | |
| 4301 protected bool isPrintable() { | |
| 4302 /* | |
| 4303 * 1GK7Q10: ITPUI:WIN98 - internal error after invoking print at editor view | |
| 4304 * Changed from returning true to testing the length of the printer queue | |
| 4305 */ | |
| 4306 PrinterData[] printerList= Printer.getPrinterList(); | |
| 4307 return (printerList !is null && printerList.length > 0); | |
| 4308 } | |
| 4309 | |
| 4310 /** | |
| 4311 * {@inheritDoc} | |
|
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|
4312 * |
| 129 | 4313 * @since 3.4 |
| 4314 */ | |
| 4315 public void print(StyledTextPrintOptions options) { | |
| 4316 final PrintDialog dialog= new PrintDialog(fTextWidget.getShell(), DWT.PRIMARY_MODAL); | |
| 4317 final PrinterData data= dialog.open(); | |
| 4318 | |
| 4319 if (data !is null) { | |
| 4320 final Printer printer= new Printer(data); | |
| 4321 final Runnable styledTextPrinter= fTextWidget.print(printer, options); | |
| 4322 | |
|
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parents:
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changeset
|
4323 void threadrun() { |
|
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Following dsss compile errors
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diff
changeset
|
4324 styledTextPrinter.run(); |
|
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|
4325 printer.dispose(); |
|
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Following dsss compile errors
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parents:
138
diff
changeset
|
4326 } |
|
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parents:
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diff
changeset
|
4327 Thread printingThread= new Thread( &threadrun ); |
|
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Following dsss compile errors
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changeset
|
4328 printingThread.name = "Printing"; //$NON-NLS-1$ |
| 129 | 4329 printingThread.start(); |
| 4330 } | |
| 4331 } | |
| 4332 | |
| 4333 /** | |
| 4334 * Brings up a print dialog and calls <code>printContents(Printer)</code> | |
| 4335 * which performs the actual print. | |
| 4336 */ | |
| 4337 protected void print() { | |
| 4338 StyledTextPrintOptions options= new StyledTextPrintOptions(); | |
| 4339 options.printTextFontStyle= true; | |
| 4340 options.printTextForeground= true; | |
| 4341 print(options); | |
| 4342 } | |
| 4343 | |
| 4344 //------ find support | |
| 4345 | |
| 4346 /** | |
| 4347 * Adheres to the contract of {@link IFindReplaceTarget#canPerformFind()}. | |
| 4348 * | |
| 4349 * @return <code>true</code> if find can be performed, <code>false</code> otherwise | |
| 4350 */ | |
| 4351 protected bool canPerformFind() { | |
| 4352 IDocument d= getVisibleDocument(); | |
| 4353 return (fTextWidget !is null && d !is null && d.getLength() > 0); | |
| 4354 } | |
| 4355 | |
| 4356 /** | |
| 4357 * Adheres to the contract of {@link IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool)}. | |
| 4358 * | |
| 4359 * @param startPosition the start position | |
| 4360 * @param findString the find string specification | |
| 4361 * @param forwardSearch the search direction | |
| 4362 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4363 * @param wholeWord <code>true</code> if match must be whole words, <code>false</code> otherwise | |
| 4364 * @return the model offset of the first match | |
| 4365 * @deprecated as of 3.0 use {@link #findAndSelect(int, String, bool, bool, bool, bool)} | |
| 4366 */ | |
| 4367 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord) { | |
| 4368 try { | |
| 4369 return findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, false); | |
| 4370 } catch (IllegalStateException ex) { | |
| 4371 return -1; | |
| 4372 } catch (PatternSyntaxException ex) { | |
| 4373 return -1; | |
| 4374 } | |
| 4375 } | |
| 4376 | |
| 4377 /** | |
| 4378 * Adheres to the contract of | |
| 4379 * {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4380 * | |
| 4381 * @param startPosition the start position | |
| 4382 * @param findString the find string specification | |
| 4383 * @param forwardSearch the search direction | |
| 4384 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4385 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4386 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4387 * @return the model offset of the first match | |
| 4388 * | |
| 4389 */ | |
| 4390 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 4391 if (fTextWidget is null) | |
| 4392 return -1; | |
| 4393 | |
| 4394 try { | |
| 4395 | |
| 4396 int widgetOffset= (startPosition is -1 ? startPosition : modelOffset2WidgetOffset(startPosition)); | |
| 4397 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4398 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4399 if (matchRegion !is null) { | |
| 4400 int widgetPos= matchRegion.getOffset(); | |
| 4401 int length= matchRegion.getLength(); | |
| 4402 | |
| 4403 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4404 char startChar= adapter.charAt(widgetPos); | |
| 4405 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4406 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 4407 bool redraws= redraws(); | |
| 4408 if (borderHasLineDelimiter && redraws) | |
| 4409 setRedraw(false); | |
| 4410 | |
| 4411 if (redraws()) { | |
| 4412 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4413 internalRevealRange(widgetPos, widgetPos + length); | |
| 4414 selectionChanged(widgetPos, length); | |
| 4415 } else { | |
| 4416 setSelectedRange(widgetOffset2ModelOffset(widgetPos), length); | |
| 4417 if (redraws) | |
| 4418 setRedraw(true); | |
| 4419 } | |
| 4420 | |
| 4421 return widgetOffset2ModelOffset(widgetPos); | |
| 4422 } | |
| 4423 | |
| 4424 } catch (BadLocationException x) { | |
|
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138
diff
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|
4425 if (TRACE_ERRORS) |
|
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parents:
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|
4426 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4427 } |
| 4428 | |
| 4429 return -1; | |
| 4430 } | |
| 4431 | |
| 4432 /** | |
| 4433 * Adheres to the contract of {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4434 * | |
| 4435 * @param startPosition the start position | |
| 4436 * @param findString the find string specification | |
| 4437 * @param forwardSearch the search direction | |
| 4438 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4439 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4440 * @param rangeOffset the search scope offset | |
| 4441 * @param rangeLength the search scope length | |
| 4442 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4443 * @return the model offset of the first match | |
| 4444 * @since 3.0 | |
| 4445 */ | |
| 4446 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) { | |
| 4447 if (fTextWidget is null) | |
| 4448 return -1; | |
| 4449 | |
| 4450 try { | |
| 4451 | |
| 4452 int modelOffset; | |
| 4453 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) { | |
| 4454 modelOffset= rangeOffset; | |
| 4455 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) { | |
| 4456 modelOffset= rangeOffset + rangeLength; | |
| 4457 } else { | |
| 4458 modelOffset= startPosition; | |
| 4459 } | |
| 4460 | |
| 4461 int widgetOffset= modelOffset2WidgetOffset(modelOffset); | |
| 4462 if (widgetOffset is -1) | |
| 4463 return -1; | |
| 4464 | |
| 4465 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4466 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4467 int widgetPos= -1; | |
| 4468 int length= 0; | |
| 4469 if (matchRegion !is null) { | |
| 4470 widgetPos= matchRegion.getOffset(); | |
| 4471 length= matchRegion.getLength(); | |
| 4472 } | |
| 4473 int modelPos= widgetPos is -1 ? -1 : widgetOffset2ModelOffset(widgetPos); | |
| 4474 | |
| 4475 if (widgetPos !is -1 && (modelPos < rangeOffset || modelPos + length > rangeOffset + rangeLength)) | |
| 4476 widgetPos= -1; | |
| 4477 | |
| 4478 if (widgetPos > -1) { | |
| 4479 | |
| 4480 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4481 char startChar= adapter.charAt(widgetPos); | |
| 4482 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4483 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 4484 bool redraws= redraws(); | |
| 4485 if (borderHasLineDelimiter && redraws) | |
| 4486 setRedraw(false); | |
| 4487 | |
| 4488 if (redraws()) { | |
| 4489 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4490 internalRevealRange(widgetPos, widgetPos + length); | |
| 4491 selectionChanged(widgetPos, length); | |
| 4492 } else { | |
| 4493 setSelectedRange(modelPos, length); | |
| 4494 if (redraws) | |
| 4495 setRedraw(true); | |
| 4496 } | |
| 4497 | |
| 4498 return modelPos; | |
| 4499 } | |
| 4500 | |
| 4501 | |
| 4502 } catch (BadLocationException x) { | |
|
140
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Following dsss compile errors
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parents:
138
diff
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|
4503 if (TRACE_ERRORS) |
|
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4504 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4505 } |
| 4506 | |
| 4507 return -1; | |
| 4508 } | |
| 4509 | |
| 4510 //---------- text presentation support | |
| 4511 | |
| 4512 /* | |
| 4513 * @see ITextViewer#setTextColor(Color) | |
| 4514 */ | |
| 4515 public void setTextColor(Color color) { | |
| 4516 if (color !is null) | |
| 4517 setTextColor(color, 0, getDocument().getLength(), true); | |
| 4518 } | |
| 4519 | |
| 4520 /* | |
| 4521 * @see ITextViewer#setTextColor(Color, start, length, bool) | |
| 4522 */ | |
| 4523 public void setTextColor(Color color, int start, int length, bool controlRedraw) { | |
| 4524 if (fTextWidget !is null) { | |
| 4525 | |
| 4526 StyleRange s= new StyleRange(); | |
| 4527 s.foreground= color; | |
| 4528 s.start= start; | |
| 4529 s.length= length; | |
| 4530 | |
| 4531 s= modelStyleRange2WidgetStyleRange(s); | |
| 4532 if (s !is null) { | |
| 4533 if (controlRedraw) | |
| 4534 fTextWidget.setRedraw(false); | |
| 4535 try { | |
| 4536 fTextWidget.setStyleRange(s); | |
| 4537 } finally { | |
| 4538 if (controlRedraw) | |
| 4539 fTextWidget.setRedraw(true); | |
| 4540 } | |
| 4541 } | |
| 4542 } | |
| 4543 } | |
| 4544 | |
| 4545 /** | |
| 4546 * Adds the given presentation to the viewer's style information. | |
| 4547 * | |
| 4548 * @param presentation the presentation to be added | |
| 4549 */ | |
| 4550 private void addPresentation(TextPresentation presentation) { | |
| 4551 | |
| 4552 StyleRange range= presentation.getDefaultStyleRange(); | |
| 4553 if (range !is null) { | |
| 4554 | |
| 4555 range= modelStyleRange2WidgetStyleRange(range); | |
| 4556 if (range !is null) | |
| 4557 fTextWidget.setStyleRange(range); | |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
4558 |
| 129 | 4559 ArrayList ranges= new ArrayList(presentation.getDenumerableRanges()); |
| 4560 Iterator e= presentation.getNonDefaultStyleRangeIterator(); | |
| 4561 while (e.hasNext()) { | |
| 134 | 4562 range= cast(StyleRange) e.next(); |
| 129 | 4563 range= modelStyleRange2WidgetStyleRange(range); |
| 4564 if (range !is null) | |
| 4565 ranges.add(range); | |
| 4566 } | |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
4567 |
| 129 | 4568 if (!ranges.isEmpty()) |
| 156 | 4569 fTextWidget.replaceStyleRanges(0, 0, arraycast!(StyleRange)(ranges.toArray())); |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
4570 |
| 129 | 4571 } else { |
| 4572 IRegion region= modelRange2WidgetRange(presentation.getCoverage()); | |
| 4573 if (region is null) | |
| 4574 return; | |
| 4575 | |
| 4576 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4577 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4578 while (e.hasNext()) { | |
| 134 | 4579 range= cast(StyleRange) e.next(); |
| 129 | 4580 range= modelStyleRange2WidgetStyleRange(range); |
| 4581 if (range !is null) | |
| 4582 list.add(range); | |
| 4583 } | |
| 4584 | |
| 4585 if (!list.isEmpty()) { | |
| 4586 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4587 list.toArray(ranges); | |
| 4588 fTextWidget.replaceStyleRanges(region.getOffset(), region.getLength(), ranges); | |
| 4589 } | |
| 4590 } | |
| 4591 } | |
| 4592 | |
| 4593 /** | |
| 4594 * Applies the given presentation to the given text widget. Helper method. | |
| 4595 * | |
| 4596 * @param presentation the style information | |
| 4597 * @since 2.1 | |
| 4598 */ | |
| 4599 private void applyTextPresentation(TextPresentation presentation) { | |
| 4600 | |
| 4601 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4602 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4603 while (e.hasNext()) { | |
| 134 | 4604 StyleRange range= cast(StyleRange) e.next(); |
| 129 | 4605 range= modelStyleRange2WidgetStyleRange(range); |
| 4606 if (range !is null) | |
| 4607 list.add(range); | |
| 4608 } | |
| 4609 | |
| 4610 if (!list.isEmpty()) { | |
| 4611 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4612 list.toArray(ranges); | |
| 4613 fTextWidget.setStyleRanges(ranges); | |
| 4614 } | |
| 4615 } | |
| 4616 | |
| 4617 /** | |
| 4618 * Returns the visible region if it is not equal to the whole document. | |
| 4619 * Otherwise returns <code>null</code>. | |
| 4620 * | |
| 4621 * @return the viewer's visible region if smaller than input document, otherwise <code>null</code> | |
| 4622 */ | |
| 4623 protected IRegion _internalGetVisibleRegion() { | |
| 4624 | |
| 4625 IDocument document= getVisibleDocument(); | |
| 138 | 4626 if ( cast(ChildDocument)document ) { |
| 134 | 4627 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 4628 return new Region(p.getOffset(), p.getLength()); |
| 4629 } | |
| 4630 | |
| 4631 return null; | |
| 4632 } | |
| 4633 | |
| 4634 /* | |
| 4635 * @see ITextViewer#changeTextPresentation(TextPresentation, bool) | |
| 4636 */ | |
| 4637 public void changeTextPresentation(TextPresentation presentation, bool controlRedraw) { | |
| 4638 | |
| 4639 if (presentation is null || !redraws()) | |
| 4640 return; | |
| 4641 | |
| 4642 if (fTextWidget is null) | |
| 4643 return; | |
| 4644 | |
| 4645 | |
| 4646 /* | |
| 4647 * Call registered text presentation listeners | |
| 4648 * and let them apply their presentation. | |
| 4649 */ | |
| 4650 if (fTextPresentationListeners !is null) { | |
| 4651 ArrayList listeners= new ArrayList(fTextPresentationListeners); | |
| 4652 for (int i= 0, size= listeners.size(); i < size; i++) { | |
| 134 | 4653 ITextPresentationListener listener= cast(ITextPresentationListener)listeners.get(i); |
| 129 | 4654 listener.applyTextPresentation(presentation); |
| 4655 } | |
| 4656 } | |
| 4657 | |
| 4658 if (presentation.isEmpty()) | |
| 4659 return; | |
| 4660 | |
| 4661 if (controlRedraw) | |
| 4662 fTextWidget.setRedraw(false); | |
| 4663 | |
| 4664 if (fReplaceTextPresentation) | |
| 4665 applyTextPresentation(presentation); | |
| 4666 else | |
| 4667 addPresentation(presentation); | |
| 4668 | |
| 4669 if (controlRedraw) | |
| 4670 fTextWidget.setRedraw(true); | |
| 4671 } | |
| 4672 | |
| 4673 /* | |
| 4674 * @see ITextViewer#getFindReplaceTarget() | |
| 4675 */ | |
| 4676 public IFindReplaceTarget getFindReplaceTarget() { | |
| 4677 if (fFindReplaceTarget is null) | |
| 4678 fFindReplaceTarget= new FindReplaceTarget(); | |
| 4679 return fFindReplaceTarget; | |
| 4680 } | |
| 4681 | |
| 4682 /** | |
| 4683 * Returns the find/replace document adapter. | |
| 4684 * | |
| 4685 * @return the find/replace document adapter. | |
| 4686 * @since 3.0 | |
| 4687 */ | |
| 4688 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() { | |
| 4689 if (fFindReplaceDocumentAdapter is null) | |
| 4690 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(getVisibleDocument()); | |
| 4691 return fFindReplaceDocumentAdapter; | |
| 4692 } | |
| 4693 | |
| 4694 /* | |
| 4695 * @see ITextViewer#getTextOperationTarget() | |
| 4696 */ | |
| 4697 public ITextOperationTarget getTextOperationTarget() { | |
| 4698 return this; | |
| 4699 } | |
| 4700 | |
| 4701 /* | |
| 4702 * @see ITextViewerExtension#appendVerifyKeyListener(VerifyKeyListener) | |
| 4703 * @since 2.0 | |
| 4704 */ | |
| 4705 public void appendVerifyKeyListener(VerifyKeyListener listener) { | |
| 4706 int index= fVerifyKeyListenersManager.numberOfListeners(); | |
| 4707 fVerifyKeyListenersManager.insertListener(listener, index); | |
| 4708 } | |
| 4709 | |
| 4710 /* | |
| 4711 * @see ITextViewerExtension#prependVerifyKeyListener(VerifyKeyListener) | |
| 4712 * @since 2.0 | |
| 4713 */ | |
| 4714 public void prependVerifyKeyListener(VerifyKeyListener listener) { | |
| 4715 fVerifyKeyListenersManager.insertListener(listener, 0); | |
| 4716 | |
| 4717 } | |
| 4718 | |
| 4719 /* | |
| 4720 * @see ITextViewerExtension#removeVerifyKeyListener(VerifyKeyListener) | |
| 4721 * @since 2.0 | |
| 4722 */ | |
| 4723 public void removeVerifyKeyListener(VerifyKeyListener listener) { | |
| 4724 fVerifyKeyListenersManager.removeListener(listener); | |
| 4725 } | |
| 4726 | |
| 4727 /* | |
| 4728 * @see ITextViewerExtension#getMark() | |
| 4729 * @since 2.0 | |
| 4730 */ | |
| 4731 public int getMark() { | |
| 4732 return fMarkPosition is null || fMarkPosition.isDeleted() ? -1 : fMarkPosition.getOffset(); | |
| 4733 } | |
| 4734 | |
| 4735 /* | |
| 4736 * @see ITextViewerExtension#setMark(int) | |
| 4737 * @since 2.0 | |
| 4738 */ | |
| 4739 public void setMark(int offset) { | |
| 4740 | |
| 4741 // clear | |
| 4742 if (offset is -1) { | |
| 4743 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) { | |
| 4744 | |
| 4745 IDocument document= getDocument(); | |
| 4746 if (document !is null) | |
| 4747 document.removePosition(fMarkPosition); | |
| 4748 } | |
| 4749 | |
| 4750 fMarkPosition= null; | |
| 4751 | |
| 4752 markChanged(-1, 0); | |
| 4753 | |
| 4754 // set | |
| 4755 } else { | |
| 4756 | |
| 4757 IDocument document= getDocument(); | |
| 4758 if (document is null) { | |
| 4759 fMarkPosition= null; | |
| 4760 return; | |
| 4761 } | |
| 4762 | |
| 4763 if (fMarkPosition !is null) | |
| 4764 document.removePosition(fMarkPosition); | |
| 4765 | |
| 4766 fMarkPosition= null; | |
| 4767 | |
| 4768 try { | |
| 4769 | |
| 4770 Position position= new Position(offset); | |
| 4771 document.addPosition(MARK_POSITION_CATEGORY, position); | |
| 4772 fMarkPosition= position; | |
| 4773 | |
| 4774 } catch (BadLocationException e) { | |
| 4775 return; | |
| 4776 } catch (BadPositionCategoryException e) { | |
| 4777 return; | |
| 4778 } | |
| 4779 | |
| 4780 markChanged(modelOffset2WidgetOffset(fMarkPosition.offset), 0); | |
| 4781 } | |
| 4782 } | |
| 4783 | |
| 4784 /* | |
| 4785 * @see Viewer#inputChanged(Object, Object) | |
| 4786 * @since 2.0 | |
| 4787 */ | |
| 4788 protected void inputChanged(Object newInput, Object oldInput) { | |
| 4789 | |
| 134 | 4790 IDocument oldDocument= cast(IDocument) oldInput; |
| 129 | 4791 if (oldDocument !is null) { |
| 4792 | |
| 4793 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) | |
| 4794 oldDocument.removePosition(fMarkPosition); | |
| 4795 | |
| 4796 try { | |
| 4797 oldDocument.removePositionUpdater(fMarkPositionUpdater); | |
| 4798 oldDocument.removePositionCategory(MARK_POSITION_CATEGORY); | |
| 4799 | |
| 4800 } catch (BadPositionCategoryException e) { | |
| 4801 } | |
| 4802 } | |
| 4803 | |
| 4804 fMarkPosition= null; | |
| 4805 | |
| 138 | 4806 if ( cast(IDocumentExtension4)oldDocument ) { |
| 134 | 4807 IDocumentExtension4 document= cast(IDocumentExtension4) oldDocument; |
| 129 | 4808 document.removeDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4809 } | |
| 4810 | |
| 4811 super.inputChanged(newInput, oldInput); | |
| 4812 | |
| 138 | 4813 if ( cast(IDocumentExtension4)newInput ) { |
| 134 | 4814 IDocumentExtension4 document= cast(IDocumentExtension4) newInput; |
| 129 | 4815 document.addDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4816 } | |
| 4817 | |
| 134 | 4818 IDocument newDocument= cast(IDocument) newInput; |
| 129 | 4819 if (newDocument !is null) { |
| 4820 newDocument.addPositionCategory(MARK_POSITION_CATEGORY); | |
| 4821 newDocument.addPositionUpdater(fMarkPositionUpdater); | |
| 4822 } | |
| 4823 } | |
| 4824 | |
| 4825 /** | |
| 4826 * Informs all text listeners about the change of the viewer's redraw state. | |
| 4827 * @since 2.0 | |
| 4828 */ | |
| 4829 private void fireRedrawChanged() { | |
| 4830 fWidgetCommand.start= 0; | |
| 4831 fWidgetCommand.length= 0; | |
| 4832 fWidgetCommand.text= null; | |
| 4833 fWidgetCommand.event= null; | |
| 4834 updateTextListeners(fWidgetCommand); | |
| 4835 } | |
| 4836 | |
| 4837 /** | |
| 4838 * Enables the redrawing of this text viewer. | |
| 4839 * @since 2.0 | |
| 4840 */ | |
| 4841 protected void enabledRedrawing() { | |
| 4842 enabledRedrawing(-1); | |
| 4843 } | |
| 4844 /** | |
| 4845 * Enables the redrawing of this text viewer. | |
| 4846 * | |
| 4847 * @param topIndex the top index to be set or <code>-1</code> | |
| 4848 * @since 3.0 | |
| 4849 */ | |
| 4850 protected void enabledRedrawing(int topIndex) { | |
| 138 | 4851 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4852 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4853 StyledText textWidget= getTextWidget(); |
| 4854 if (textWidget !is null && !textWidget.isDisposed()) { | |
| 4855 extension.resumeForwardingDocumentChanges(); | |
| 4856 if (topIndex > -1) { | |
| 4857 try { | |
| 4858 setTopIndex(topIndex); | |
| 4859 } catch (IllegalArgumentException x) { | |
| 4860 // changes don't allow for the previous top pixel | |
| 4861 } | |
| 4862 } | |
| 4863 } | |
| 4864 } | |
| 4865 | |
| 4866 if (fViewerState !is null) { | |
| 4867 fViewerState.restore(topIndex is -1); | |
| 4868 fViewerState= null; | |
| 4869 } | |
| 4870 | |
| 4871 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4872 fTextWidget.setRedraw(true); | |
| 4873 | |
| 4874 fireRedrawChanged(); | |
| 4875 } | |
| 4876 | |
| 4877 /** | |
| 4878 * Disables the redrawing of this text viewer. Subclasses may extend. | |
| 4879 * @since 2.0 | |
| 4880 */ | |
| 4881 protected void disableRedrawing() { | |
| 4882 if (fViewerState is null) | |
| 4883 fViewerState= new ViewerState(); | |
| 4884 | |
| 138 | 4885 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4886 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4887 extension.stopForwardingDocumentChanges(); |
| 4888 } | |
| 4889 | |
| 4890 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4891 fTextWidget.setRedraw(false); | |
| 4892 | |
| 4893 fireRedrawChanged(); | |
| 4894 } | |
| 4895 | |
| 4896 /* | |
| 4897 * @see ITextViewerExtension#setRedraw(bool) | |
| 4898 * @since 2.0 | |
| 4899 */ | |
| 4900 public final void setRedraw(bool redraw) { | |
| 4901 setRedraw(redraw, -1); | |
| 4902 } | |
| 4903 | |
| 4904 /** | |
| 4905 * Basically same functionality as | |
| 4906 * <code>ITextViewerExtension.setRedraw(bool)</code>. Adds a way for | |
| 4907 * subclasses to pass in a desired top index that should be used when | |
| 4908 * <code>redraw</code> is <code>true</code>. If <code>topIndex</code> | |
| 4909 * is -1, this method is identical to | |
| 4910 * <code>ITextViewerExtension.setRedraw(bool)</code>. | |
| 4911 * | |
| 4912 * @see ITextViewerExtension#setRedraw(bool) | |
| 4913 * | |
| 4914 * @param redraw | |
| 4915 * @param topIndex | |
| 4916 * @since 3.0 | |
| 4917 */ | |
| 4918 protected final void setRedraw(bool redraw, int topIndex) { | |
| 4919 if (!redraw) { | |
| 4920 | |
| 4921 ++ fRedrawCounter; | |
| 4922 if (fRedrawCounter is 1) | |
| 4923 disableRedrawing(); | |
| 4924 | |
| 4925 } else { | |
| 4926 -- fRedrawCounter; | |
| 4927 if (fRedrawCounter is 0) { | |
| 4928 if (topIndex is -1) | |
| 4929 enabledRedrawing(); | |
| 4930 else | |
| 4931 enabledRedrawing(topIndex); | |
| 4932 } | |
| 4933 } | |
| 4934 } | |
| 4935 | |
| 4936 /** | |
| 4937 * Returns whether this viewer redraws itself. | |
| 4938 * | |
| 4939 * @return <code>true</code> if this viewer redraws itself | |
| 4940 * @since 2.0 | |
| 4941 */ | |
| 4942 protected final bool redraws() { | |
| 4943 return fRedrawCounter <= 0; | |
| 4944 } | |
| 4945 | |
| 4946 /** | |
| 4947 * Starts the sequential rewrite mode of the viewer's document. | |
| 4948 * | |
| 4949 * @param normalized <code>true</code> if the rewrite is performed from the start to the end of the document | |
| 4950 * @since 2.0 | |
| 4951 * @deprecated since 3.1 use {@link IDocumentExtension4#startRewriteSession(DocumentRewriteSessionType)} instead | |
| 4952 */ | |
| 4953 protected final void startSequentialRewriteMode(bool normalized) { | |
| 4954 IDocument document= getDocument(); | |
| 138 | 4955 if ( cast(IDocumentExtension)document ) { |
| 134 | 4956 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4957 extension.startSequentialRewrite(normalized); |
| 4958 } | |
| 4959 } | |
| 4960 | |
| 4961 /** | |
| 4962 * Sets the sequential rewrite mode of the viewer's document. | |
| 4963 * | |
| 4964 * @since 2.0 | |
| 4965 * @deprecated since 3.1 use {@link IDocumentExtension4#stopRewriteSession(DocumentRewriteSession)} instead | |
| 4966 */ | |
| 4967 protected final void stopSequentialRewriteMode() { | |
| 4968 IDocument document= getDocument(); | |
| 138 | 4969 if ( cast(IDocumentExtension)document ) { |
| 134 | 4970 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4971 extension.stopSequentialRewrite(); |
| 4972 } | |
| 4973 } | |
| 4974 | |
| 4975 /* | |
| 4976 * @see dwtx.jface.text.ITextViewerExtension#getRewriteTarget() | |
| 4977 * @since 2.0 | |
| 4978 */ | |
| 4979 public IRewriteTarget getRewriteTarget() { | |
| 4980 if (fRewriteTarget is null) | |
| 4981 fRewriteTarget= new RewriteTarget(); | |
| 4982 return fRewriteTarget; | |
| 4983 } | |
| 4984 | |
| 4985 /* | |
| 4986 * @see dwtx.jface.text.ITextViewerExtension2#getCurrentTextHover() | |
| 4987 */ | |
| 4988 public ITextHover getCurrentTextHover() { | |
| 4989 if (fTextHoverManager is null) | |
| 4990 return null; | |
| 4991 return fTextHoverManager.getCurrentTextHover(); | |
| 4992 } | |
| 4993 | |
| 4994 /* | |
| 4995 * @see dwtx.jface.text.ITextViewerExtension2#getHoverEventLocation() | |
| 4996 */ | |
| 4997 public Point getHoverEventLocation() { | |
| 4998 if (fTextHoverManager is null) | |
| 4999 return null; | |
| 5000 return fTextHoverManager.getHoverEventLocation(); | |
| 5001 } | |
| 5002 | |
| 5003 /** | |
| 5004 * Returns the paint manager of this viewer. | |
| 5005 * | |
| 5006 * @return the paint manager of this viewer | |
| 5007 * @since 2.1 | |
| 5008 */ | |
| 5009 protected PaintManager getPaintManager() { | |
| 5010 if (fPaintManager is null) | |
| 5011 fPaintManager= new PaintManager(this); | |
| 5012 return fPaintManager; | |
| 5013 } | |
| 5014 | |
| 5015 /** | |
| 5016 * Adds the given painter to this viewer. If the painter is already registered | |
| 5017 * this method is without effect. | |
| 5018 * | |
| 5019 * @param painter the painter to be added | |
| 5020 * @since 2.1 | |
| 5021 */ | |
| 5022 public void addPainter(IPainter painter) { | |
| 5023 getPaintManager().addPainter(painter); | |
| 5024 } | |
| 5025 | |
| 5026 /** | |
| 5027 * Removes the given painter from this viewer. If the painter has previously not been | |
| 5028 * added to this viewer this method is without effect. | |
| 5029 * | |
| 5030 * @param painter the painter to be removed | |
| 5031 * @since 2.1 | |
| 5032 */ | |
| 5033 public void removePainter(IPainter painter) { | |
| 5034 getPaintManager().removePainter(painter); | |
| 5035 } | |
| 5036 | |
| 5037 // ----------------------------------- conversions ------------------------------------------------------- | |
| 5038 | |
| 5039 /** | |
| 5040 * Implements the contract of {@link ITextViewerExtension5#modelLine2WidgetLine(int)}. | |
| 5041 * | |
| 5042 * @param modelLine the model line | |
| 5043 * @return the corresponding widget line or <code>-1</code> | |
| 5044 * @since 2.1 | |
| 5045 */ | |
| 5046 public int modelLine2WidgetLine(int modelLine) { | |
| 5047 if (fInformationMapping is null) | |
| 5048 return modelLine; | |
| 5049 | |
| 5050 try { | |
| 5051 return fInformationMapping.toImageLine(modelLine); | |
| 5052 } catch (BadLocationException x) { | |
| 5053 } | |
| 5054 | |
| 5055 return -1; | |
| 5056 } | |
| 5057 | |
| 5058 /** | |
| 5059 * Implements the contract of {@link ITextViewerExtension5#modelOffset2WidgetOffset(int)}. | |
| 5060 * | |
| 5061 * @param modelOffset the model offset | |
| 5062 * @return the corresponding widget offset or <code>-1</code> | |
| 5063 * @since 2.1 | |
| 5064 */ | |
| 5065 public int modelOffset2WidgetOffset(int modelOffset) { | |
| 5066 if (fInformationMapping is null) | |
| 5067 return modelOffset; | |
| 5068 | |
| 5069 try { | |
| 5070 return fInformationMapping.toImageOffset(modelOffset); | |
| 5071 } catch (BadLocationException x) { | |
| 5072 } | |
| 5073 | |
| 5074 return -1; | |
| 5075 } | |
| 5076 | |
| 5077 /** | |
| 5078 * Implements the contract of {@link ITextViewerExtension5#modelRange2WidgetRange(IRegion)}. | |
| 5079 * | |
| 5080 * @param modelRange the model range | |
| 5081 * @return the corresponding widget range or <code>null</code> | |
| 5082 * @since 2.1 | |
| 5083 */ | |
| 5084 public IRegion modelRange2WidgetRange(IRegion modelRange) { | |
| 5085 if (fInformationMapping is null) | |
| 5086 return modelRange; | |
| 5087 | |
| 5088 try { | |
| 5089 | |
| 5090 if (modelRange.getLength() < 0) { | |
| 5091 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 5092 IRegion result= fInformationMapping.toImageRegion(reversed); | |
| 5093 if (result !is null) | |
| 5094 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5095 } | |
| 5096 return fInformationMapping.toImageRegion(modelRange); | |
| 5097 | |
| 5098 } catch (BadLocationException x) { | |
| 5099 } | |
| 5100 | |
| 5101 return null; | |
| 5102 } | |
| 5103 | |
| 5104 /** | |
| 5105 * Similar to {@link #modelRange2WidgetRange(IRegion)}, but more forgiving: | |
| 5106 * if <code>modelRange</code> describes a region entirely hidden in the | |
| 5107 * image, then this method returns the zero-length region at the offset of | |
| 5108 * the folded region. | |
| 5109 * | |
| 5110 * @param modelRange the model range | |
| 5111 * @return the corresponding widget range, or <code>null</code> | |
| 5112 * @since 3.1 | |
| 5113 */ | |
| 5114 protected IRegion modelRange2ClosestWidgetRange(IRegion modelRange) { | |
| 138 | 5115 if (!( cast(IDocumentInformationMappingExtension2)fInformationMapping )) |
| 129 | 5116 return modelRange2WidgetRange(modelRange); |
| 5117 | |
| 5118 try { | |
| 5119 if (modelRange.getLength() < 0) { | |
| 5120 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 134 | 5121 IRegion result= (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(reversed); |
| 129 | 5122 if (result !is null) |
| 5123 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5124 } | |
| 134 | 5125 return (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(modelRange); |
| 129 | 5126 |
| 5127 } catch (BadLocationException x) { | |
| 5128 } | |
| 5129 | |
| 5130 return null; | |
| 5131 } | |
| 5132 | |
| 5133 /** | |
| 5134 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5135 * | |
| 5136 * @param widgetLine the widget line | |
| 5137 * @return the corresponding model line | |
| 5138 * @since 2.1 | |
| 5139 */ | |
| 5140 public int widgetlLine2ModelLine(int widgetLine) { | |
| 5141 return widgetLine2ModelLine(widgetLine); | |
| 5142 } | |
| 5143 | |
| 5144 /** | |
| 5145 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5146 * | |
| 5147 * @param widgetLine the widget line | |
| 5148 * @return the corresponding model line or <code>-1</code> | |
| 5149 * @since 3.0 | |
| 5150 */ | |
| 5151 public int widgetLine2ModelLine(int widgetLine) { | |
| 5152 if (fInformationMapping is null) | |
| 5153 return widgetLine; | |
| 5154 | |
| 5155 try { | |
| 5156 return fInformationMapping.toOriginLine(widgetLine); | |
| 5157 } catch (BadLocationException x) { | |
| 5158 } | |
| 5159 | |
| 5160 return -1; | |
| 5161 } | |
| 5162 | |
| 5163 /** | |
| 5164 * Implements the contract of {@link ITextViewerExtension5#widgetOffset2ModelOffset(int)}. | |
| 5165 * | |
| 5166 * @param widgetOffset the widget offset | |
| 5167 * @return the corresponding model offset or <code>-1</code> | |
| 5168 * @since 2.1 | |
| 5169 */ | |
| 5170 public int widgetOffset2ModelOffset(int widgetOffset) { | |
| 5171 if (fInformationMapping is null) | |
| 5172 return widgetOffset; | |
| 5173 | |
| 5174 try { | |
| 5175 return fInformationMapping.toOriginOffset(widgetOffset); | |
| 5176 } catch (BadLocationException x) { | |
| 5177 if (widgetOffset is getVisibleDocument().getLength()) { | |
| 5178 IRegion coverage= fInformationMapping.getCoverage(); | |
| 5179 return coverage.getOffset() + coverage.getLength(); | |
| 5180 } | |
| 5181 } | |
| 5182 | |
| 5183 return -1; | |
| 5184 } | |
| 5185 | |
| 5186 /** | |
| 5187 * Implements the contract of {@link ITextViewerExtension5#widgetRange2ModelRange(IRegion)}. | |
| 5188 * | |
| 5189 * @param widgetRange the widget range | |
| 5190 * @return the corresponding model range or <code>null</code> | |
| 5191 * @since 2.1 | |
| 5192 */ | |
| 5193 public IRegion widgetRange2ModelRange(IRegion widgetRange) { | |
| 5194 if (fInformationMapping is null) | |
| 5195 return widgetRange; | |
| 5196 | |
| 5197 try { | |
| 5198 | |
| 5199 if (widgetRange.getLength() < 0) { | |
| 5200 Region reveresed= new Region(widgetRange.getOffset() + widgetRange.getLength(), -widgetRange.getLength()); | |
| 5201 IRegion result= fInformationMapping.toOriginRegion(reveresed); | |
| 5202 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5203 } | |
| 5204 | |
| 5205 return fInformationMapping.toOriginRegion(widgetRange); | |
| 5206 | |
| 5207 } catch (BadLocationException x) { | |
| 5208 int modelOffset= widgetOffset2ModelOffset(widgetRange.getOffset()); | |
| 5209 if (modelOffset > -1) { | |
| 5210 int modelEndOffset= widgetOffset2ModelOffset(widgetRange.getOffset() + widgetRange.getLength()); | |
| 5211 if (modelEndOffset > -1) | |
| 5212 return new Region(modelOffset, modelEndOffset - modelOffset); | |
| 5213 } | |
| 5214 } | |
| 5215 | |
| 5216 return null; | |
| 5217 } | |
| 5218 | |
| 5219 /** | |
| 5220 * Implements the contract of {@link ITextViewerExtension5#getModelCoverage()}. | |
| 5221 * | |
| 5222 * @return the model coverage | |
| 5223 * @since 2.1 | |
| 5224 */ | |
| 5225 public IRegion getModelCoverage() { | |
| 5226 if (fInformationMapping is null) { | |
| 5227 IDocument document= getDocument(); | |
| 5228 if (document is null) | |
| 5229 return null; | |
| 5230 return new Region(0, document.getLength()); | |
| 5231 } | |
| 5232 | |
| 5233 return fInformationMapping.getCoverage(); | |
| 5234 } | |
| 5235 | |
| 5236 /** | |
| 5237 * Returns the line of the widget whose corresponding line in the viewer's document | |
| 5238 * is closest to the given line in the viewer's document or <code>-1</code>. | |
| 5239 * | |
| 5240 * @param modelLine the line in the viewer's document | |
| 5241 * @return the line in the widget that corresponds best to the given line in the viewer's document or <code>-1</code> | |
| 5242 * @since 2.1 | |
| 5243 */ | |
| 5244 protected int getClosestWidgetLineForModelLine(int modelLine) { | |
| 5245 if (fInformationMapping is null) | |
| 5246 return modelLine; | |
| 5247 | |
| 5248 try { | |
| 5249 return fInformationMapping.toClosestImageLine(modelLine); | |
| 5250 } catch (BadLocationException x) { | |
| 5251 } | |
| 5252 | |
| 5253 return -1; | |
| 5254 } | |
| 5255 | |
| 5256 /** | |
| 5257 * Translates a style range given relative to the viewer's document into style | |
| 5258 * ranges relative to the viewer's widget or <code>null</code>. | |
| 5259 * | |
| 5260 * @param range the style range in the coordinates of the viewer's document | |
| 5261 * @return the style range in the coordinates of the viewer's widget or <code>null</code> | |
| 5262 * @since 2.1 | |
| 5263 */ | |
| 5264 protected StyleRange modelStyleRange2WidgetStyleRange(StyleRange range) { | |
| 5265 IRegion region= modelRange2WidgetRange(new Region(range.start, range.length)); | |
| 5266 if (region !is null) { | |
| 134 | 5267 StyleRange result= cast(StyleRange) range.clone(); |
| 129 | 5268 result.start= region.getOffset(); |
| 5269 result.length= region.getLength(); | |
| 5270 return result; | |
| 5271 } | |
| 5272 return null; | |
| 5273 } | |
| 5274 | |
| 5275 /** | |
| 5276 * Same as {@link #modelRange2WidgetRange(IRegion)} just for a {@link dwtx.jface.text.Position}. | |
| 5277 * | |
| 5278 * @param modelPosition the position describing a range in the viewer's document | |
| 5279 * @return a region describing a range in the viewer's widget | |
| 5280 * @since 2.1 | |
| 5281 */ | |
| 5282 protected IRegion modelRange2WidgetRange(Position modelPosition) { | |
| 5283 return modelRange2WidgetRange(new Region(modelPosition.getOffset(), modelPosition.getLength())); | |
| 5284 } | |
| 5285 | |
| 5286 /** | |
| 5287 * Translates the widget region of the given verify event into | |
| 5288 * the corresponding region of the viewer's document. | |
| 5289 * | |
| 5290 * @param event the verify event | |
| 5291 * @return the region of the viewer's document corresponding to the verify event | |
| 5292 * @since 2.1 | |
| 5293 */ | |
| 5294 protected IRegion event2ModelRange(VerifyEvent event) { | |
| 5295 | |
| 5296 Region region= null; | |
| 5297 if (event.start <= event.end) | |
| 5298 region= new Region(event.start, event.end - event.start); | |
| 5299 else | |
| 5300 region= new Region(event.end, event.start - event.end); | |
| 5301 | |
| 5302 return widgetRange2ModelRange(region); | |
| 5303 } | |
| 5304 | |
| 5305 /** | |
| 5306 * Translates the given widget selection into the corresponding region | |
| 5307 * of the viewer's document or returns <code>null</code> if this fails. | |
| 5308 * | |
| 5309 * @param widgetSelection the widget selection | |
| 5310 * @return the region of the viewer's document corresponding to the widget selection or <code>null</code> | |
| 5311 * @since 2.1 | |
| 5312 */ | |
| 5313 protected Point widgetSelection2ModelSelection(Point widgetSelection) { | |
| 5314 IRegion region= new Region(widgetSelection.x, widgetSelection.y); | |
| 5315 region= widgetRange2ModelRange(region); | |
| 5316 return region is null ? null : new Point(region.getOffset(), region.getLength()); | |
| 5317 } | |
| 5318 | |
| 5319 /** | |
| 5320 * Translates the given selection range of the viewer's document into | |
| 5321 * the corresponding widget range or returns <code>null</code> of this fails. | |
| 5322 * | |
| 5323 * @param modelSelection the selection range of the viewer's document | |
| 5324 * @return the widget range corresponding to the selection range or <code>null</code> | |
| 5325 * @since 2.1 | |
| 5326 */ | |
| 5327 protected Point modelSelection2WidgetSelection(Point modelSelection) { | |
| 5328 if (fInformationMapping is null) | |
| 5329 return modelSelection; | |
| 5330 | |
| 5331 try { | |
| 5332 IRegion region= new Region(modelSelection.x, modelSelection.y); | |
| 5333 region= fInformationMapping.toImageRegion(region); | |
| 5334 if (region !is null) | |
| 5335 return new Point(region.getOffset(), region.getLength()); | |
| 5336 } catch (BadLocationException x) { | |
| 5337 } | |
| 5338 | |
| 5339 return null; | |
| 5340 } | |
| 5341 | |
| 5342 /** | |
| 5343 * Implements the contract of {@link ITextViewerExtension5#widgetLineOfWidgetOffset(int)}. | |
| 5344 * | |
| 5345 * @param widgetOffset the widget offset | |
| 5346 * @return the corresponding widget line or <code>-1</code> | |
| 5347 * @since 2.1 | |
| 5348 */ | |
| 5349 public int widgetLineOfWidgetOffset(int widgetOffset) { | |
| 5350 IDocument document= getVisibleDocument(); | |
| 5351 if (document !is null) { | |
| 5352 try { | |
| 5353 return document.getLineOfOffset(widgetOffset); | |
| 5354 } catch (BadLocationException e) { | |
| 5355 } | |
| 5356 } | |
| 5357 return -1; | |
| 5358 } | |
| 5359 | |
| 5360 /* | |
| 5361 * @see dwtx.jface.text.ITextViewerExtension4#moveFocusToWidgetToken() | |
| 5362 * @since 3.0 | |
| 5363 */ | |
| 5364 public bool moveFocusToWidgetToken() { | |
| 138 | 5365 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 5366 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 5367 return extension.setFocus(this); |
| 5368 } | |
| 5369 return false; | |
| 5370 } | |
| 5371 | |
| 5372 /** | |
| 5373 * Sets the document partitioning of this viewer. The partitioning is used by this viewer to | |
| 5374 * access partitioning information of the viewers input document. | |
| 5375 * | |
| 5376 * @param partitioning the partitioning name | |
| 5377 * @since 3.0 | |
| 5378 */ | |
| 5379 public void setDocumentPartitioning(String partitioning) { | |
| 5380 fPartitioning= partitioning; | |
| 5381 } | |
| 5382 | |
| 5383 /** | |
| 5384 * Returns the document partitioning for this viewer. | |
| 5385 * | |
| 5386 * @return the document partitioning for this viewer | |
| 5387 * @since 3.0 | |
| 5388 */ | |
| 5389 protected String getDocumentPartitioning() { | |
| 5390 return fPartitioning; | |
| 5391 } | |
| 5392 | |
| 5393 //---- Text presentation listeners ---- | |
| 5394 | |
| 5395 /* | |
| 5396 * @see ITextViewerExtension4#addTextPresentationListener(ITextPresentationListener) | |
| 5397 * @since 3.0 | |
| 5398 */ | |
| 5399 public void addTextPresentationListener(ITextPresentationListener listener) { | |
| 5400 | |
| 5401 Assert.isNotNull(listener); | |
| 5402 | |
| 5403 if (fTextPresentationListeners is null) | |
| 5404 fTextPresentationListeners= new ArrayList(); | |
| 5405 | |
| 5406 if (!fTextPresentationListeners.contains(listener)) | |
| 5407 fTextPresentationListeners.add(listener); | |
| 5408 } | |
| 5409 | |
| 5410 /* | |
| 5411 * @see ITextViewerExtension4#removeTextPresentationListener(ITextPresentationListener) | |
| 5412 * @since 3.0 | |
| 5413 */ | |
| 5414 public void removeTextPresentationListener(ITextPresentationListener listener) { | |
| 5415 | |
| 5416 Assert.isNotNull(listener); | |
| 5417 | |
| 5418 if (fTextPresentationListeners !is null) { | |
| 5419 fTextPresentationListeners.remove(listener); | |
| 5420 if (fTextPresentationListeners.size() is 0) | |
| 5421 fTextPresentationListeners= null; | |
| 5422 } | |
| 5423 } | |
| 5424 | |
| 5425 /* | |
| 5426 * @see dwtx.jface.text.IEditingSupportRegistry#registerHelper(dwtx.jface.text.IEditingSupport) | |
| 5427 * @since 3.1 | |
| 5428 */ | |
| 5429 public void register(IEditingSupport helper) { | |
| 5430 Assert.isLegal(helper !is null); | |
| 5431 fEditorHelpers.add(helper); | |
| 5432 } | |
| 5433 | |
| 5434 /* | |
| 5435 * @see dwtx.jface.text.IEditingSupportRegistry#deregisterHelper(dwtx.jface.text.IEditingSupport) | |
| 5436 * @since 3.1 | |
| 5437 */ | |
| 5438 public void unregister(IEditingSupport helper) { | |
| 5439 fEditorHelpers.remove(helper); | |
| 5440 } | |
| 5441 | |
| 5442 /* | |
| 5443 * @see dwtx.jface.text.IEditingSupportRegistry#getCurrentHelpers() | |
| 5444 * @since 3.1 | |
| 5445 */ | |
| 5446 public IEditingSupport[] getRegisteredSupports() { | |
| 156 | 5447 return arraycast!(IEditingSupport)( fEditorHelpers.toArray()); |
| 129 | 5448 } |
| 5449 | |
| 5450 /* | |
| 5451 * @see dwtx.jface.text.ITextViewerExtension6#setHyperlinkDetectors(dwtx.jface.text.hyperlink.IHyperlinkDetector[], int) | |
| 5452 * @since 3.1 | |
| 5453 */ | |
| 5454 public void setHyperlinkDetectors(IHyperlinkDetector[] hyperlinkDetectors, int eventStateMask) { | |
| 5455 if (fHyperlinkDetectors !is null) { | |
| 5456 for (int i= 0; i < fHyperlinkDetectors.length; i++) { | |
|
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5457 if (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i] ) |
| 134 | 5458 (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i]).dispose(); |
| 129 | 5459 } |
| 5460 } | |
|
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|
5461 |
| 129 | 5462 bool enable= hyperlinkDetectors !is null && hyperlinkDetectors.length > 0; |
| 5463 fHyperlinkStateMask= eventStateMask; | |
| 5464 fHyperlinkDetectors= hyperlinkDetectors; | |
| 5465 if (enable) { | |
| 5466 if (fHyperlinkManager !is null) { | |
| 5467 fHyperlinkManager.setHyperlinkDetectors(fHyperlinkDetectors); | |
| 5468 fHyperlinkManager.setHyperlinkStateMask(fHyperlinkStateMask); | |
| 5469 } | |
| 5470 ensureHyperlinkManagerInstalled(); | |
| 5471 } else { | |
| 5472 if (fHyperlinkManager !is null) | |
| 5473 fHyperlinkManager.uninstall(); | |
| 5474 fHyperlinkManager= null; | |
| 5475 } | |
| 5476 } | |
| 5477 | |
| 5478 /** | |
| 5479 * Sets the hyperlink presenter. | |
| 5480 * <p> | |
| 5481 * This is only valid as long as the hyperlink manager hasn't | |
| 5482 * been created yet. | |
| 5483 * </p> | |
| 5484 * | |
| 5485 * @param hyperlinkPresenter the hyperlink presenter | |
| 5486 * @throws IllegalStateException if the hyperlink manager has already been created | |
| 5487 * @since 3.1 | |
| 5488 */ | |
|
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5489 public void setHyperlinkPresenter(IHyperlinkPresenter hyperlinkPresenter) { |
| 129 | 5490 if (fHyperlinkManager !is null) |
| 5491 throw new IllegalStateException(); | |
| 5492 | |
| 5493 fHyperlinkPresenter= hyperlinkPresenter; | |
| 5494 ensureHyperlinkManagerInstalled(); | |
| 5495 } | |
| 5496 | |
| 5497 /** | |
| 5498 * Ensures that the hyperlink manager has been | |
| 5499 * installed if a hyperlink detector is available. | |
| 5500 * | |
| 5501 * @since 3.1 | |
| 5502 */ | |
| 5503 private void ensureHyperlinkManagerInstalled() { | |
| 5504 if (fHyperlinkDetectors !is null && fHyperlinkDetectors.length > 0 && fHyperlinkPresenter !is null && fHyperlinkManager is null) { | |
| 159 | 5505 HyperlinkManager.DETECTION_STRATEGY strategy= fHyperlinkPresenter.canShowMultipleHyperlinks() ? HyperlinkManager.ALL : HyperlinkManager.FIRST; |
| 129 | 5506 fHyperlinkManager= new HyperlinkManager(strategy); |
| 5507 fHyperlinkManager.install(this, fHyperlinkPresenter, fHyperlinkDetectors, fHyperlinkStateMask); | |
| 5508 } | |
| 5509 } | |
| 5510 | |
| 5511 /* | |
| 5512 * @see dwtx.jface.text.ITextViewerExtension7#setTabsToSpacesConverter(dwtx.jface.text.IAutoEditStrategy) | |
| 5513 * @since 3.3 | |
| 5514 */ | |
| 5515 public void setTabsToSpacesConverter(IAutoEditStrategy converter) { | |
| 5516 fTabsToSpacesConverter= converter; | |
| 5517 } | |
| 5518 | |
| 5519 } |