Mercurial > projects > dwt-addons
annotate dwtx/jface/text/TextViewer.d @ 172:d994a8b2cdf7
again compile fixes
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 10 Sep 2008 23:14:02 +0200 |
| parents | 862b05e0334a |
| children | c6d7b1ea700b |
| 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.DefaultInformationControl; // packageimport | |
| 64 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
| 65 import dwtx.jface.text.DocumentClone; // packageimport | |
| 66 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
| 67 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
| 68 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
| 69 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
| 70 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
| 71 import dwtx.jface.text.TextSelection; // packageimport | |
| 72 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
| 73 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
| 74 import dwtx.jface.text.IPainter; // packageimport | |
| 75 import dwtx.jface.text.IInformationControl; // packageimport | |
| 76 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
| 77 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
| 78 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
| 79 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
| 80 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
| 81 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
| 82 import dwtx.jface.text.ITextHover; // packageimport | |
| 83 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport | |
| 84 import dwtx.jface.text.ILineTracker; // packageimport | |
| 85 import dwtx.jface.text.Line; // packageimport | |
| 86 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
| 87 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
| 88 import dwtx.jface.text.TextEvent; // packageimport | |
| 89 import dwtx.jface.text.BadLocationException; // packageimport | |
| 90 import dwtx.jface.text.AbstractDocument; // packageimport | |
| 91 import dwtx.jface.text.AbstractLineTracker; // packageimport | |
| 92 import dwtx.jface.text.TreeLineTracker; // packageimport | |
| 93 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
| 94 import dwtx.jface.text.Region; // packageimport | |
| 95 import dwtx.jface.text.ITextViewer; // packageimport | |
| 96 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
| 97 import dwtx.jface.text.MarginPainter; // packageimport | |
| 98 import dwtx.jface.text.IPaintPositionManager; // packageimport | |
| 99 import dwtx.jface.text.TextPresentation; // packageimport | |
| 100 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport | |
| 101 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
| 102 import dwtx.jface.text.ISelectionValidator; // packageimport | |
| 103 import dwtx.jface.text.IDocumentExtension; // packageimport | |
| 104 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport | |
| 105 import dwtx.jface.text.ConfigurableLineTracker; // packageimport | |
| 106 import dwtx.jface.text.SlaveDocumentEvent; // packageimport | |
| 107 import dwtx.jface.text.IDocumentListener; // packageimport | |
| 108 import dwtx.jface.text.PaintManager; // packageimport | |
| 109 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport | |
| 110 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport | |
| 111 import dwtx.jface.text.IDocumentExtension3; // packageimport | |
| 112 import dwtx.jface.text.Position; // packageimport | |
| 113 import dwtx.jface.text.TextMessages; // packageimport | |
| 114 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport | |
| 115 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport | |
| 116 import dwtx.jface.text.IPositionUpdater; // packageimport | |
| 117 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
| 118 import dwtx.jface.text.ListLineTracker; // packageimport | |
| 119 import dwtx.jface.text.ITextInputListener; // packageimport | |
| 120 import dwtx.jface.text.BadPositionCategoryException; // packageimport | |
| 121 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
| 122 import dwtx.jface.text.IInputChangedListener; // packageimport | |
| 123 import dwtx.jface.text.ITextOperationTarget; // packageimport | |
| 124 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
| 125 import dwtx.jface.text.ITextViewerExtension7; // packageimport | |
| 126 import dwtx.jface.text.IInformationControlExtension5; // packageimport | |
| 127 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport | |
| 128 import dwtx.jface.text.JFaceTextUtil; // packageimport | |
| 129 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
| 130 import dwtx.jface.text.TabsToSpacesConverter; // packageimport | |
| 131 import dwtx.jface.text.CursorLinePainter; // packageimport | |
| 132 import dwtx.jface.text.ITextHoverExtension; // packageimport | |
| 133 import dwtx.jface.text.IEventConsumer; // packageimport | |
| 134 import dwtx.jface.text.IDocument; // packageimport | |
| 135 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport | |
| 136 import dwtx.jface.text.DocumentCommand; // packageimport | |
| 137 import dwtx.jface.text.TypedPosition; // packageimport | |
| 138 import dwtx.jface.text.IEditingSupportRegistry; // packageimport | |
| 139 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport | |
| 140 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport | |
| 141 import dwtx.jface.text.IEditingSupport; // packageimport | |
| 142 import dwtx.jface.text.IMarkSelection; // packageimport | |
| 143 import dwtx.jface.text.ISlaveDocumentManager; // packageimport | |
| 144 import dwtx.jface.text.DocumentEvent; // packageimport | |
| 145 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
| 146 import dwtx.jface.text.ITextStore; // packageimport | |
| 147 import dwtx.jface.text.JFaceTextMessages; // packageimport | |
| 148 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport | |
| 149 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport | |
| 150 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport | |
| 151 import dwtx.jface.text.TextAttribute; // packageimport | |
| 152 import dwtx.jface.text.ITextViewerExtension4; // packageimport | |
| 153 import dwtx.jface.text.ITypedRegion; // packageimport | |
| 154 | |
| 129 | 155 import dwt.dwthelper.utils; |
|
153
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Fix java Collection imports
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156 import dwtx.dwtxhelper.Collection; |
| 159 | 157 import dwtx.dwtxhelper.regex; |
| 158 import tango.text.convert.Format; | |
| 167 | 159 import dwtx.dwtxhelper.JThread; |
| 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 | |
| 162 | 243 alias Viewer.fireSelectionChanged fireSelectionChanged; |
| 244 | |
| 129 | 245 /** Internal flag to indicate the debug state. */ |
| 147 | 246 public static const bool TRACE_ERRORS= false; |
| 129 | 247 /** Internal flag to indicate the debug state. */ |
| 147 | 248 private static const bool TRACE_DOUBLE_CLICK= false; |
| 129 | 249 |
| 250 /** | |
| 251 * Width constraint for text hovers (in characters). | |
| 252 * @since 3.4 | |
| 253 */ | |
| 147 | 254 private static const int TEXT_HOVER_WIDTH_CHARS= 100; //used to be 60 (text font) |
| 129 | 255 /** |
| 256 * Height constraint for text hovers (in characters). | |
| 257 * @since 3.4 | |
| 258 */ | |
| 147 | 259 private static const int TEXT_HOVER_HEIGHT_CHARS= 12; //used to be 10 (text font) |
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260 |
| 129 | 261 /** |
| 262 * Represents a replace command that brings the text viewer's text widget | |
| 263 * back in synchronization with text viewer's document after the document | |
| 264 * has been changed. | |
| 265 */ | |
| 266 protected class WidgetCommand { | |
| 267 | |
| 268 /** The document event encapsulated by this command. */ | |
| 269 public DocumentEvent event; | |
| 270 /** The start of the event. */ | |
| 271 public int start; | |
| 272 /** The length of the event. */ | |
| 273 public int length; | |
| 274 /** The inserted and replaced text segments of <code>event</code>. */ | |
| 275 public String text; | |
| 276 /** The replaced text segments of <code>event</code>. */ | |
| 277 public String preservedText; | |
| 278 | |
| 279 /** | |
| 280 * Translates a document event into the presentation coordinates of this text viewer. | |
| 281 * | |
| 282 * @param e the event to be translated | |
| 283 */ | |
| 284 public void setEvent(DocumentEvent e) { | |
| 285 | |
| 286 event= e; | |
| 287 | |
| 288 start= e.getOffset(); | |
| 289 length= e.getLength(); | |
| 290 text= e.getText(); | |
| 291 | |
| 292 if (length !is 0) { | |
| 293 try { | |
| 294 | |
| 138 | 295 if ( cast(SlaveDocumentEvent)e ) { |
| 134 | 296 SlaveDocumentEvent slave= cast(SlaveDocumentEvent) e; |
| 129 | 297 DocumentEvent master= slave.getMasterEvent(); |
| 298 if (master !is null) | |
| 299 preservedText= master.getDocument().get(master.getOffset(), master.getLength()); | |
| 300 } else { | |
| 301 preservedText= e.getDocument().get(e.getOffset(), e.getLength()); | |
| 302 } | |
| 303 | |
| 304 } catch (BadLocationException x) { | |
| 305 preservedText= null; | |
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306 if (TRACE_ERRORS) |
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307 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.WidgetCommand.setEvent")); //$NON-NLS-1$ |
| 129 | 308 } |
| 309 } else | |
| 310 preservedText= null; | |
| 311 } | |
| 312 } | |
| 313 | |
| 314 | |
| 315 /** | |
| 316 * Connects a text double click strategy to this viewer's text widget. | |
| 317 * Calls the double click strategies when the mouse has | |
| 318 * been clicked inside the text editor. | |
| 319 */ | |
| 320 class TextDoubleClickStrategyConnector : MouseAdapter , MovementListener { | |
| 321 | |
| 322 /** Internal flag to remember the last double-click selection. */ | |
| 323 private Point fDoubleClickSelection; | |
| 324 | |
| 325 /* | |
| 326 * @see dwt.events.MouseAdapter#mouseUp(dwt.events.MouseEvent) | |
| 327 * @since 3.2 | |
| 328 */ | |
| 329 public void mouseUp(MouseEvent e) { | |
| 330 fDoubleClickSelection= null; | |
| 331 } | |
| 332 | |
| 333 /* | |
| 334 * @see dwt.custom.MovementListener#getNextOffset(dwt.custom.MovementEvent) | |
| 335 * @since 3.3 | |
| 336 */ | |
| 337 public void getNextOffset(MovementEvent event) { | |
| 338 if (event.movement !is DWT.MOVEMENT_WORD_END) | |
| 339 return; | |
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340 |
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341 if (TRACE_DOUBLE_CLICK) { |
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342 System.out_.println("\n+++"); //$NON-NLS-1$ |
| 129 | 343 print(event); |
| 344 } | |
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345 |
| 129 | 346 if (fDoubleClickSelection !is null) { |
| 347 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 348 event.newOffset= fDoubleClickSelection.y; | |
| 349 } | |
| 350 } | |
| 351 | |
| 352 /* | |
| 353 * @see dwt.custom.MovementListener#getPreviousOffset(dwt.custom.MovementEvent) | |
| 354 * @since 3.3 | |
| 355 */ | |
| 356 public void getPreviousOffset(MovementEvent event) { | |
| 357 if (event.movement !is DWT.MOVEMENT_WORD_START) | |
| 358 return; | |
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359 |
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360 if (TRACE_DOUBLE_CLICK) { |
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361 System.out_.println("\n---"); //$NON-NLS-1$ |
| 129 | 362 print(event); |
| 363 } | |
| 364 if (fDoubleClickSelection is null) { | |
| 134 | 365 ITextDoubleClickStrategy s= cast(ITextDoubleClickStrategy) selectContentTypePlugin(getSelectedRange().x, fDoubleClickStrategies); |
| 129 | 366 if (s !is null) { |
| 367 StyledText textWidget= getTextWidget(); | |
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368 s.doubleClicked(this.outer); |
| 129 | 369 fDoubleClickSelection= textWidget.getSelection(); |
| 370 event.newOffset= fDoubleClickSelection.x; | |
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371 if (TRACE_DOUBLE_CLICK) |
| 162 | 372 System.out_.println(Format("- setting selection: x= {}, y= {}", fDoubleClickSelection.x, fDoubleClickSelection.y)); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 373 } |
| 374 } else { | |
| 375 if (fDoubleClickSelection.x <= event.offset && event.offset <= fDoubleClickSelection.y) | |
| 376 event.newOffset= fDoubleClickSelection.x; | |
| 377 } | |
| 378 } | |
| 379 } | |
| 380 | |
| 381 /** | |
| 382 * Print trace info about <code>MovementEvent</code>. | |
|
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383 * |
| 129 | 384 * @param e the event to print |
| 385 * @since 3.3 | |
| 386 */ | |
| 387 private void print(MovementEvent e) { | |
| 162 | 388 System.out_.println(Format("line offset: {}", e.lineOffset)); //$NON-NLS-1$ |
| 389 System.out_.println(Format("line: {}", e.lineText)); //$NON-NLS-1$ | |
| 390 System.out_.println(Format("type: {}", e.movement)); //$NON-NLS-1$ | |
| 391 System.out_.println(Format("offset: {}", e.offset)); //$NON-NLS-1$ | |
| 392 System.out_.println(Format("newOffset: {}", e.newOffset)); //$NON-NLS-1$ | |
| 129 | 393 } |
| 394 | |
| 395 /** | |
| 396 * Monitors the area of the viewer's document that is visible in the viewer. | |
| 397 * If the area might have changed, it informs the text viewer about this | |
| 398 * potential change and its origin. The origin is internally used for optimization | |
| 399 * purposes. | |
| 400 */ | |
| 401 class ViewportGuard : MouseAdapter | |
| 402 , ControlListener, KeyListener, SelectionListener { | |
| 403 | |
| 404 /* | |
| 405 * @see ControlListener#controlResized(ControlEvent) | |
| 406 */ | |
| 407 public void controlResized(ControlEvent e) { | |
| 408 updateViewportListeners(RESIZE); | |
| 409 } | |
| 410 | |
| 411 /* | |
| 412 * @see ControlListener#controlMoved(ControlEvent) | |
| 413 */ | |
| 414 public void controlMoved(ControlEvent e) { | |
| 415 } | |
| 416 | |
| 417 /* | |
| 418 * @see KeyListener#keyReleased | |
| 419 */ | |
| 420 public void keyReleased(KeyEvent e) { | |
| 421 updateViewportListeners(KEY); | |
| 422 } | |
| 423 | |
| 424 /* | |
| 425 * @see KeyListener#keyPressed | |
| 426 */ | |
| 427 public void keyPressed(KeyEvent e) { | |
| 428 updateViewportListeners(KEY); | |
| 429 } | |
| 430 | |
| 431 /* | |
| 432 * @see MouseListener#mouseUp | |
| 433 */ | |
| 434 public void mouseUp(MouseEvent e) { | |
| 435 if (fTextWidget !is null) | |
| 436 fTextWidget.removeSelectionListener(this); | |
| 437 updateViewportListeners(MOUSE_END); | |
| 438 } | |
| 439 | |
| 440 /* | |
| 441 * @see MouseListener#mouseDown | |
| 442 */ | |
| 443 public void mouseDown(MouseEvent e) { | |
| 444 if (fTextWidget !is null) | |
| 445 fTextWidget.addSelectionListener(this); | |
| 446 } | |
| 447 | |
| 448 /* | |
| 449 * @see SelectionListener#widgetSelected | |
| 450 */ | |
| 451 public void widgetSelected(SelectionEvent e) { | |
| 452 if (e.widget is fScroller) | |
| 453 updateViewportListeners(SCROLLER); | |
| 454 else | |
| 455 updateViewportListeners(MOUSE); | |
| 456 } | |
| 457 | |
| 458 /* | |
| 459 * @see SelectionListener#widgetDefaultSelected | |
| 460 */ | |
| 461 public void widgetDefaultSelected(SelectionEvent e) {} | |
| 462 } | |
| 463 | |
| 464 /** | |
| 465 * This position updater is used to keep the selection during text shift operations. | |
| 466 */ | |
| 467 static class ShiftPositionUpdater : DefaultPositionUpdater { | |
| 468 | |
| 469 /** | |
| 470 * Creates the position updater for the given category. | |
| 471 * | |
| 472 * @param category the category this updater takes care of | |
| 473 */ | |
|
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474 protected this(String category) { |
| 129 | 475 super(category); |
| 476 } | |
| 477 | |
| 478 /** | |
| 479 * If an insertion happens at the selection's start offset, | |
| 480 * the position is extended rather than shifted. | |
| 481 */ | |
| 482 protected void adaptToInsert() { | |
| 483 | |
| 484 int myStart= fPosition.offset; | |
| 485 int myEnd= fPosition.offset + fPosition.length -1; | |
| 486 myEnd= Math.max(myStart, myEnd); | |
| 487 | |
| 488 int yoursStart= fOffset; | |
| 489 int yoursEnd= fOffset + fReplaceLength -1; | |
| 490 yoursEnd= Math.max(yoursStart, yoursEnd); | |
| 491 | |
| 492 if (myEnd < yoursStart) | |
| 493 return; | |
| 494 | |
| 495 if (myStart <= yoursStart) { | |
| 496 fPosition.length += fReplaceLength; | |
| 497 return; | |
| 498 } | |
| 499 | |
| 500 if (myStart > yoursStart) | |
| 501 fPosition.offset += fReplaceLength; | |
| 502 } | |
| 503 } | |
| 504 | |
| 505 /** | |
| 506 * Internal document listener on the visible document. | |
| 507 */ | |
| 508 class VisibleDocumentListener : IDocumentListener { | |
| 509 | |
| 510 /* | |
| 511 * @see IDocumentListener#documentAboutToBeChanged | |
| 512 */ | |
| 513 public void documentAboutToBeChanged(DocumentEvent e) { | |
| 514 if (e.getDocument() is getVisibleDocument()) | |
| 515 fWidgetCommand.setEvent(e); | |
| 516 handleVisibleDocumentAboutToBeChanged(e); | |
| 517 } | |
| 518 | |
| 519 /* | |
| 520 * @see IDocumentListener#documentChanged | |
| 521 */ | |
| 522 public void documentChanged(DocumentEvent e) { | |
| 523 if (fWidgetCommand.event is e) | |
| 524 updateTextListeners(fWidgetCommand); | |
| 525 fLastSentSelectionChange= null; | |
| 526 handleVisibleDocumentChanged(e); | |
| 527 } | |
| 528 } | |
| 529 | |
| 530 /** | |
| 531 * Internal verify listener. | |
| 532 */ | |
| 533 class TextVerifyListener : VerifyListener { | |
| 534 | |
| 535 /** | |
| 536 * Indicates whether verify events are forwarded or ignored. | |
| 537 * @since 2.0 | |
| 538 */ | |
| 539 private bool fForward= true; | |
| 540 | |
| 541 /** | |
| 542 * Tells the listener to forward received events. | |
| 543 * | |
| 544 * @param forward <code>true</code> if forwarding should be enabled. | |
| 545 * @since 2.0 | |
| 546 */ | |
| 547 public void forward(bool forward) { | |
| 548 fForward= forward; | |
| 549 } | |
| 550 | |
| 551 /* | |
| 552 * @see VerifyListener#verifyText(VerifyEvent) | |
| 553 */ | |
| 554 public void verifyText(VerifyEvent e) { | |
| 555 if (fForward) | |
| 556 handleVerifyEvent(e); | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 /** | |
| 561 * The viewer's manager responsible for registered verify key listeners. | |
| 562 * Uses batches rather than robust iterators because of performance issues. | |
| 563 * <p> | |
| 564 * The implementation is reentrant, i.e. installed listeners may trigger | |
| 565 * further <code>VerifyKeyEvent</code>s that may cause other listeners to be | |
| 566 * installed, but not thread safe. | |
| 567 * </p> | |
| 568 * @since 2.0 | |
| 569 */ | |
| 570 class VerifyKeyListenersManager : VerifyKeyListener { | |
| 571 | |
| 572 /** | |
| 573 * Represents a batched addListener/removeListener command. | |
| 574 */ | |
| 575 class Batch { | |
| 576 /** The index at which to insert the listener. */ | |
| 577 int index; | |
| 578 /** The listener to be inserted. */ | |
| 579 VerifyKeyListener listener; | |
| 580 | |
| 581 /** | |
| 582 * Creates a new batch containing the given listener for the given index. | |
| 583 * | |
| 584 * @param l the listener to be added | |
| 585 * @param i the index at which to insert the listener | |
| 586 */ | |
|
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587 public this(VerifyKeyListener l, int i) { |
| 129 | 588 listener= l; |
| 589 index= i; | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 /** List of registered verify key listeners. */ | |
| 162 | 594 private List fListeners; |
| 129 | 595 /** List of pending batches. */ |
| 162 | 596 private List fBatched; |
| 129 | 597 /** The reentrance count. */ |
| 598 private int fReentranceCount= 0; | |
| 599 | |
| 162 | 600 this(){ |
| 601 fListeners= new ArrayList(); | |
| 602 fBatched= new ArrayList(); | |
| 603 } | |
| 604 | |
| 129 | 605 /* |
| 606 * @see VerifyKeyListener#verifyKey(VerifyEvent) | |
| 607 */ | |
| 608 public void verifyKey(VerifyEvent event) { | |
| 609 if (fListeners.isEmpty()) | |
| 610 return; | |
| 611 | |
| 612 try { | |
| 613 fReentranceCount++; | |
| 614 Iterator iterator= fListeners.iterator(); | |
| 615 while (iterator.hasNext() && event.doit) { | |
| 134 | 616 VerifyKeyListener listener= cast(VerifyKeyListener) iterator.next(); |
| 129 | 617 listener.verifyKey(event); // we might trigger reentrant calls on GTK |
| 618 } | |
| 619 } finally { | |
| 620 fReentranceCount--; | |
| 621 } | |
| 622 if (fReentranceCount is 0) | |
| 623 processBatchedRequests(); | |
| 624 } | |
| 625 | |
| 626 /** | |
| 627 * Processes the pending batched requests. | |
| 628 */ | |
| 629 private void processBatchedRequests() { | |
| 630 if (!fBatched.isEmpty()) { | |
| 631 Iterator e= fBatched.iterator(); | |
| 632 while (e.hasNext()) { | |
| 134 | 633 Batch batch= cast(Batch) e.next(); |
| 129 | 634 insertListener(batch.listener, batch.index); |
| 635 } | |
| 636 fBatched.clear(); | |
| 637 } | |
| 638 } | |
| 639 | |
| 640 /** | |
| 641 * Returns the number of registered verify key listeners. | |
| 642 * | |
| 643 * @return the number of registered verify key listeners | |
| 644 */ | |
| 645 public int numberOfListeners() { | |
| 646 return fListeners.size(); | |
| 647 } | |
| 648 | |
| 649 /** | |
| 650 * Inserts the given listener at the given index or moves it | |
| 651 * to that index. | |
| 652 * | |
| 653 * @param listener the listener to be inserted | |
| 654 * @param index the index of the listener or -1 for remove | |
| 655 */ | |
| 656 public void insertListener(VerifyKeyListener listener, int index) { | |
| 657 | |
| 658 if (index is -1) { | |
| 659 removeListener(listener); | |
| 660 } else if (listener !is null) { | |
| 661 | |
| 662 if (fReentranceCount > 0) { | |
| 663 | |
| 664 fBatched.add(new Batch(listener, index)); | |
| 665 | |
| 666 } else { | |
| 667 | |
| 668 int idx= -1; | |
| 669 | |
| 670 // find index based on identity | |
| 671 int size= fListeners.size(); | |
| 672 for (int i= 0; i < size; i++) { | |
| 162 | 673 if (cast(Object)listener is fListeners.get(i)) { |
| 129 | 674 idx= i; |
| 675 break; | |
| 676 } | |
| 677 } | |
| 678 | |
| 679 // move or add it | |
| 680 if (idx !is index) { | |
| 681 | |
| 682 if (idx !is -1) | |
| 683 fListeners.remove(idx); | |
| 684 | |
| 685 if (index > fListeners.size()) | |
| 162 | 686 fListeners.add(cast(Object)listener); |
| 129 | 687 else |
| 162 | 688 fListeners.add(index, cast(Object)listener); |
| 129 | 689 } |
| 690 | |
| 691 if (size is 0) // checking old size, i.e. current size is size + 1 | |
| 692 install(); | |
| 693 } | |
| 694 } | |
| 695 } | |
| 696 | |
| 697 /** | |
| 698 * Removes the given listener. | |
| 699 * | |
| 700 * @param listener the listener to be removed | |
| 701 */ | |
| 702 public void removeListener(VerifyKeyListener listener) { | |
| 703 if (listener is null) | |
| 704 return; | |
| 705 | |
| 706 if (fReentranceCount > 0) { | |
| 707 | |
| 708 fBatched.add(new Batch(listener, -1)); | |
| 709 | |
| 710 } else { | |
| 711 | |
| 712 int size= fListeners.size(); | |
| 713 for (int i= 0; i < size; i++) { | |
| 162 | 714 if (cast(Object)listener is fListeners.get(i)) { |
| 129 | 715 fListeners.remove(i); |
| 716 if (size is 1) // checking old size, i.e. current size is size - 1 | |
| 717 uninstall(); | |
| 718 return; | |
| 719 } | |
| 720 } | |
| 721 } | |
| 722 } | |
| 723 | |
| 724 /** | |
| 725 * Installs this manager. | |
| 726 */ | |
| 727 private void install() { | |
| 728 StyledText textWidget= getTextWidget(); | |
| 729 if (textWidget !is null && !textWidget.isDisposed()) | |
| 730 textWidget.addVerifyKeyListener(this); | |
| 731 } | |
| 732 | |
| 733 /** | |
| 734 * Uninstalls this manager. | |
| 735 */ | |
| 736 private void uninstall() { | |
| 737 StyledText textWidget= getTextWidget(); | |
| 738 if (textWidget !is null && !textWidget.isDisposed()) | |
| 739 textWidget.removeVerifyKeyListener(this); | |
| 740 } | |
| 741 } | |
| 742 | |
| 743 | |
| 744 /** | |
| 745 * Reification of a range in which a find replace operation is performed. This range is visually | |
| 746 * highlighted in the viewer as long as the replace operation is in progress. | |
| 747 * | |
| 748 * @since 2.0 | |
| 749 */ | |
| 750 class FindReplaceRange : LineBackgroundListener, ITextListener, IPositionUpdater { | |
| 751 | |
| 752 /** Internal name for the position category used to update the range. */ | |
| 146 | 753 private const static String RANGE_CATEGORY= "dwtx.jface.text.TextViewer.find.range"; //$NON-NLS-1$ |
| 129 | 754 |
| 755 /** The highlight color of this range. */ | |
| 756 private Color fHighlightColor; | |
| 757 /** The position used to lively update this range's extent. */ | |
| 758 private Position fPosition; | |
| 759 | |
| 760 /** Creates a new find/replace range with the given extent. | |
| 761 * | |
| 762 * @param range the extent of this range | |
| 763 */ | |
|
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764 public this(IRegion range) { |
| 129 | 765 setRange(range); |
| 766 } | |
| 767 | |
| 768 /** | |
| 769 * Sets the extent of this range. | |
| 770 * | |
| 771 * @param range the extent of this range | |
| 772 */ | |
| 773 public void setRange(IRegion range) { | |
| 774 fPosition= new Position(range.getOffset(), range.getLength()); | |
| 775 } | |
| 776 | |
| 777 /** | |
| 778 * Returns the extent of this range. | |
| 779 * | |
| 780 * @return the extent of this range | |
| 781 */ | |
| 782 public IRegion getRange() { | |
| 783 return new Region(fPosition.getOffset(), fPosition.getLength()); | |
| 784 } | |
| 785 | |
| 786 /** | |
| 787 * Sets the highlight color of this range. Causes the range to be redrawn. | |
| 788 * | |
| 789 * @param color the highlight color | |
| 790 */ | |
| 791 public void setHighlightColor(Color color) { | |
| 792 fHighlightColor= color; | |
| 793 paint(); | |
| 794 } | |
| 795 | |
| 796 /* | |
| 797 * @see LineBackgroundListener#lineGetBackground(LineBackgroundEvent) | |
| 798 * @since 2.0 | |
| 799 */ | |
| 800 public void lineGetBackground(LineBackgroundEvent event) { | |
| 801 /* Don't use cached line information because of patched redrawing events. */ | |
| 802 | |
| 803 if (fTextWidget !is null) { | |
| 804 int offset= widgetOffset2ModelOffset(event.lineOffset); | |
| 805 if (fPosition.includes(offset)) | |
| 806 event.lineBackground= fHighlightColor; | |
| 807 } | |
| 808 } | |
| 809 | |
| 810 /** | |
| 811 * Installs this range. The range registers itself as background | |
| 812 * line painter and text listener. Also, it creates a category with the | |
| 813 * viewer's document to maintain its own extent. | |
| 814 */ | |
| 815 public void install() { | |
| 137 | 816 this.outer.addTextListener(this); |
| 129 | 817 fTextWidget.addLineBackgroundListener(this); |
| 818 | |
| 137 | 819 IDocument document= this.outer.getDocument(); |
| 129 | 820 try { |
| 821 document.addPositionCategory(RANGE_CATEGORY); | |
| 822 document.addPosition(RANGE_CATEGORY, fPosition); | |
| 823 document.addPositionUpdater(this); | |
| 824 } catch (BadPositionCategoryException e) { | |
| 825 // should not happen | |
| 826 } catch (BadLocationException e) { | |
| 827 // should not happen | |
| 828 } | |
| 829 | |
| 830 paint(); | |
| 831 } | |
| 832 | |
| 833 /** | |
| 834 * Uninstalls this range. | |
| 835 * @see #install() | |
| 836 */ | |
| 837 public void uninstall() { | |
| 838 | |
| 839 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=19612 | |
| 840 | |
| 137 | 841 IDocument document= this.outer.getDocument(); |
| 129 | 842 if (document !is null) { |
| 843 document.removePositionUpdater(this); | |
| 844 document.removePosition(fPosition); | |
| 845 } | |
| 846 | |
| 847 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 848 fTextWidget.removeLineBackgroundListener(this); | |
| 849 | |
| 137 | 850 this.outer.removeTextListener(this); |
| 129 | 851 |
| 852 clear(); | |
| 853 } | |
| 854 | |
| 855 /** | |
| 856 * Clears the highlighting of this range. | |
| 857 */ | |
| 858 private void clear() { | |
| 859 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 860 fTextWidget.redraw(); | |
| 861 } | |
| 862 | |
| 863 /** | |
| 864 * Paints the highlighting of this range. | |
| 865 */ | |
| 866 private void paint() { | |
| 867 | |
| 868 IRegion widgetRegion= modelRange2WidgetRange(fPosition); | |
| 869 int offset= widgetRegion.getOffset(); | |
| 870 int length= widgetRegion.getLength(); | |
| 871 | |
| 872 int count= fTextWidget.getCharCount(); | |
| 873 if (offset + length >= count) { | |
| 874 length= count - offset; // clip | |
| 875 | |
| 876 Point upperLeft= fTextWidget.getLocationAtOffset(offset); | |
| 877 Point lowerRight= fTextWidget.getLocationAtOffset(offset + length); | |
| 878 int width= fTextWidget.getClientArea().width; | |
| 879 int height= fTextWidget.getLineHeight(offset + length) + lowerRight.y - upperLeft.y; | |
| 880 fTextWidget.redraw(upperLeft.x, upperLeft.y, width, height, false); | |
| 881 } | |
| 882 | |
| 883 fTextWidget.redrawRange(offset, length, true); | |
| 884 } | |
| 885 | |
| 886 /* | |
| 887 * @see ITextListener#textChanged(TextEvent) | |
| 888 * @since 2.0 | |
| 889 */ | |
| 890 public void textChanged(TextEvent event) { | |
| 891 if (event.getViewerRedrawState()) | |
| 892 paint(); | |
| 893 } | |
| 894 | |
| 895 /* | |
| 896 * @see IPositionUpdater#update(DocumentEvent) | |
| 897 * @since 2.0 | |
| 898 */ | |
| 899 public void update(DocumentEvent event) { | |
| 900 int offset= event.getOffset(); | |
| 901 int length= event.getLength(); | |
| 162 | 902 int delta= event.getText().length - length; |
| 129 | 903 |
| 904 if (offset < fPosition.getOffset()) | |
| 905 fPosition.setOffset(fPosition.getOffset() + delta); | |
| 906 else if (offset < fPosition.getOffset() + fPosition.getLength()) | |
| 907 fPosition.setLength(fPosition.getLength() + delta); | |
| 908 } | |
| 909 } | |
| 910 | |
| 911 /** | |
| 912 * This viewer's find/replace target. | |
| 913 */ | |
| 914 class FindReplaceTarget : IFindReplaceTarget, IFindReplaceTargetExtension, IFindReplaceTargetExtension3 { | |
| 915 | |
| 916 /** The range for this target. */ | |
| 917 private FindReplaceRange fRange; | |
| 918 /** The highlight color of the range of this target. */ | |
| 919 private Color fScopeHighlightColor; | |
| 920 /** The document partitioner remembered in case of a "Replace All". */ | |
| 921 private Map fRememberedPartitioners; | |
| 922 /** | |
| 923 * The active rewrite session. | |
| 924 * @since 3.1 | |
| 925 */ | |
| 926 private DocumentRewriteSession fRewriteSession; | |
| 927 | |
| 928 /* | |
| 929 * @see IFindReplaceTarget#getSelectionText() | |
| 930 */ | |
| 931 public String getSelectionText() { | |
| 137 | 932 Point s= this.outer.getSelectedRange(); |
| 129 | 933 if (s.x > -1 && s.y > -1) { |
| 934 try { | |
| 137 | 935 IDocument document= this.outer.getDocument(); |
| 129 | 936 return document.get(s.x, s.y); |
| 937 } catch (BadLocationException x) { | |
| 938 } | |
| 939 } | |
| 940 return ""; //$NON-NLS-1$ | |
| 941 } | |
| 942 | |
| 943 /* | |
| 944 * @see IFindReplaceTarget#replaceSelection(String) | |
| 945 */ | |
| 946 public void replaceSelection(String text) { | |
| 947 replaceSelection(text, false); | |
| 948 } | |
| 949 | |
| 950 /* | |
| 951 * @see IFindReplaceTarget#replaceSelection(String) | |
| 952 */ | |
| 953 public void replaceSelection(String text, bool regExReplace) { | |
| 137 | 954 Point s= this.outer.getSelectedRange(); |
| 129 | 955 if (s.x > -1 && s.y > -1) { |
| 956 try { | |
| 137 | 957 IRegion matchRegion= this.outer.getFindReplaceDocumentAdapter().replace(text, regExReplace); |
| 129 | 958 int length= -1; |
| 959 if (matchRegion !is null) | |
| 960 length= matchRegion.getLength(); | |
| 961 | |
| 962 if (text !is null && length > 0) | |
| 137 | 963 this.outer.setSelectedRange(s.x, length); |
| 129 | 964 } catch (BadLocationException x) { |
| 965 } | |
| 966 } | |
| 967 } | |
| 968 | |
| 969 /* | |
| 970 * @see IFindReplaceTarget#isEditable() | |
| 971 */ | |
| 972 public bool isEditable() { | |
| 137 | 973 return this.outer.isEditable(); |
| 129 | 974 } |
| 975 | |
| 976 /* | |
| 977 * @see IFindReplaceTarget#getSelection() | |
| 978 */ | |
| 979 public Point getSelection() { | |
| 137 | 980 Point modelSelection= this.outer.getSelectedRange(); |
| 129 | 981 Point widgetSelection= modelSelection2WidgetSelection(modelSelection); |
| 982 return widgetSelection !is null ? widgetSelection : new Point(-1, -1); | |
| 983 } | |
| 984 | |
| 985 /* | |
| 986 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 987 */ | |
| 988 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord) { | |
| 989 try { | |
| 990 return findAndSelect(widgetOffset, findString, searchForward, caseSensitive, wholeWord, false); | |
| 991 } catch (PatternSyntaxException x) { | |
| 992 return -1; | |
| 993 } | |
| 994 } | |
| 995 | |
| 996 /* | |
| 997 * @see IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool) | |
| 998 */ | |
| 999 public int findAndSelect(int widgetOffset, String findString, bool searchForward, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 1000 | |
| 1001 int modelOffset= widgetOffset is -1 ? -1 : widgetOffset2ModelOffset(widgetOffset); | |
| 1002 | |
| 1003 if (fRange !is null) { | |
| 1004 IRegion range= fRange.getRange(); | |
| 137 | 1005 modelOffset= this.outer.findAndSelectInRange(modelOffset, findString, searchForward, caseSensitive, wholeWord, range.getOffset(), range.getLength(), regExSearch); |
| 129 | 1006 } else { |
| 137 | 1007 modelOffset= this.outer.findAndSelect(modelOffset, findString, searchForward, caseSensitive, wholeWord, regExSearch); |
| 129 | 1008 } |
| 1009 | |
| 1010 widgetOffset= modelOffset is -1 ? -1 : modelOffset2WidgetOffset(modelOffset); | |
| 1011 return widgetOffset; | |
| 1012 } | |
| 1013 | |
| 1014 /* | |
| 1015 * @see IFindReplaceTarget#canPerformFind() | |
| 1016 */ | |
| 1017 public bool canPerformFind() { | |
| 137 | 1018 return this.outer.canPerformFind(); |
| 129 | 1019 } |
| 1020 | |
| 1021 /* | |
| 1022 * @see IFindReplaceTargetExtension#beginSession() | |
| 1023 * @since 2.0 | |
| 1024 */ | |
| 1025 public void beginSession() { | |
| 1026 fRange= null; | |
| 1027 } | |
| 1028 | |
| 1029 /* | |
| 1030 * @see IFindReplaceTargetExtension#endSession() | |
| 1031 * @since 2.0 | |
| 1032 */ | |
| 1033 public void endSession() { | |
| 1034 if (fRange !is null) { | |
| 1035 fRange.uninstall(); | |
| 1036 fRange= null; | |
| 1037 } | |
| 1038 } | |
| 1039 | |
| 1040 /* | |
| 1041 * @see IFindReplaceTargetExtension#getScope() | |
| 1042 * @since 2.0 | |
| 1043 */ | |
| 1044 public IRegion getScope() { | |
| 1045 return fRange is null ? null : fRange.getRange(); | |
| 1046 } | |
| 1047 | |
| 1048 /* | |
| 1049 * @see IFindReplaceTargetExtension#getLineSelection() | |
| 1050 * @since 2.0 | |
| 1051 */ | |
| 1052 public Point getLineSelection() { | |
| 137 | 1053 Point point= this.outer.getSelectedRange(); |
| 129 | 1054 |
| 1055 try { | |
| 137 | 1056 IDocument document= this.outer.getDocument(); |
| 129 | 1057 |
| 1058 // beginning of line | |
| 1059 int line= document.getLineOfOffset(point.x); | |
| 1060 int offset= document.getLineOffset(line); | |
| 1061 | |
| 1062 // end of line | |
| 1063 IRegion lastLineInfo= document.getLineInformationOfOffset(point.x + point.y); | |
| 1064 int lastLine= document.getLineOfOffset(point.x + point.y); | |
| 1065 int length; | |
| 1066 if (lastLineInfo.getOffset() is point.x + point.y && lastLine > 0) | |
| 1067 length= document.getLineOffset(lastLine - 1) + document.getLineLength(lastLine - 1) - offset; | |
| 1068 else | |
| 1069 length= lastLineInfo.getOffset() + lastLineInfo.getLength() - offset; | |
| 1070 | |
| 1071 return new Point(offset, length); | |
| 1072 | |
| 1073 } catch (BadLocationException e) { | |
| 1074 // should not happen | |
| 1075 return new Point(point.x, 0); | |
| 1076 } | |
| 1077 } | |
| 1078 | |
| 1079 /* | |
| 1080 * @see IFindReplaceTargetExtension#setSelection(int, int) | |
| 1081 * @since 2.0 | |
| 1082 */ | |
| 1083 public void setSelection(int modelOffset, int modelLength) { | |
| 137 | 1084 this.outer.setSelectedRange(modelOffset, modelLength); |
| 129 | 1085 } |
| 1086 | |
| 1087 /* | |
| 1088 * @see IFindReplaceTargetExtension#setScope(IRegion) | |
| 1089 * @since 2.0 | |
| 1090 */ | |
|
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1091 public void setScope(IRegion scope_) { |
| 129 | 1092 if (fRange !is null) |
| 1093 fRange.uninstall(); | |
| 1094 | |
|
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1095 if (scope_ is null) { |
| 129 | 1096 fRange= null; |
| 1097 return; | |
| 1098 } | |
| 1099 | |
|
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1100 fRange= new FindReplaceRange(scope_); |
| 129 | 1101 fRange.setHighlightColor(fScopeHighlightColor); |
| 1102 fRange.install(); | |
| 1103 } | |
| 1104 | |
| 1105 /* | |
| 1106 * @see IFindReplaceTargetExtension#setScopeHighlightColor(Color) | |
| 1107 * @since 2.0 | |
| 1108 */ | |
| 1109 public void setScopeHighlightColor(Color color) { | |
| 1110 if (fRange !is null) | |
| 1111 fRange.setHighlightColor(color); | |
| 1112 fScopeHighlightColor= color; | |
| 1113 } | |
| 1114 | |
| 1115 /* | |
| 1116 * @see IFindReplaceTargetExtension#setReplaceAllMode(bool) | |
| 1117 * @since 2.0 | |
| 1118 */ | |
| 1119 public void setReplaceAllMode(bool replaceAll) { | |
| 1120 | |
| 1121 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=18232 | |
| 1122 | |
| 137 | 1123 IDocument document= this.outer.getDocument(); |
| 129 | 1124 |
| 1125 if (replaceAll) { | |
| 1126 | |
| 138 | 1127 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1128 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1129 fRewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 1130 } else { | |
| 137 | 1131 this.outer.setRedraw(false); |
| 1132 this.outer.startSequentialRewriteMode(false); | |
| 129 | 1133 |
| 1134 if (fUndoManager !is null) | |
| 1135 fUndoManager.beginCompoundChange(); | |
| 1136 | |
| 1137 fRememberedPartitioners= TextUtilities.removeDocumentPartitioners(document); | |
| 1138 } | |
| 1139 | |
| 1140 } else { | |
| 1141 | |
| 138 | 1142 if ( cast(IDocumentExtension4)document ) { |
| 134 | 1143 IDocumentExtension4 extension= cast(IDocumentExtension4) document; |
| 129 | 1144 extension.stopRewriteSession(fRewriteSession); |
| 1145 } else { | |
| 137 | 1146 this.outer.setRedraw(true); |
| 1147 this.outer.stopSequentialRewriteMode(); | |
| 129 | 1148 |
| 1149 if (fUndoManager !is null) | |
| 1150 fUndoManager.endCompoundChange(); | |
| 1151 | |
| 1152 if (fRememberedPartitioners !is null) | |
| 1153 TextUtilities.addDocumentPartitioners(document, fRememberedPartitioners); | |
| 1154 } | |
| 1155 } | |
| 1156 } | |
| 1157 } | |
| 1158 | |
| 1159 | |
| 1160 /** | |
| 1161 * The viewer's rewrite target. | |
| 1162 * @since 2.0 | |
| 1163 */ | |
| 1164 class RewriteTarget : IRewriteTarget { | |
| 1165 | |
| 1166 /* | |
| 1167 * @see dwtx.jface.text.IRewriteTarget#beginCompoundChange() | |
| 1168 */ | |
| 1169 public void beginCompoundChange() { | |
| 1170 if (fUndoManager !is null) | |
| 1171 fUndoManager.beginCompoundChange(); | |
| 1172 } | |
| 1173 | |
| 1174 /* | |
| 1175 * @see dwtx.jface.text.IRewriteTarget#endCompoundChange() | |
| 1176 */ | |
| 1177 public void endCompoundChange() { | |
| 1178 if (fUndoManager !is null) | |
| 1179 fUndoManager.endCompoundChange(); | |
| 1180 } | |
| 1181 | |
| 1182 /* | |
| 1183 * @see dwtx.jface.text.IRewriteTarget#getDocument() | |
| 1184 */ | |
| 1185 public IDocument getDocument() { | |
| 137 | 1186 return this.outer.getDocument(); |
| 129 | 1187 } |
| 1188 | |
| 1189 /* | |
| 1190 * @see dwtx.jface.text.IRewriteTarget#setRedraw(bool) | |
| 1191 */ | |
| 1192 public void setRedraw(bool redraw) { | |
| 137 | 1193 this.outer.setRedraw(redraw); |
| 129 | 1194 } |
| 1195 } | |
| 1196 | |
| 1197 /** | |
| 1198 * Value object used as key in the text hover configuration table. It is | |
| 1199 * modifiable only inside this compilation unit to allow the reuse of created | |
| 1200 * objects for efficiency reasons | |
| 1201 * | |
| 1202 * @since 2.1 | |
| 1203 */ | |
| 1204 protected class TextHoverKey { | |
| 1205 | |
| 1206 /** The content type this key belongs to */ | |
| 1207 private String fContentType; | |
| 1208 /** The state mask */ | |
| 1209 private int fStateMask; | |
| 1210 | |
| 1211 /** | |
| 1212 * Creates a new text hover key for the given content type and state mask. | |
| 1213 * | |
| 1214 * @param contentType the content type | |
| 1215 * @param stateMask the state mask | |
| 1216 */ | |
|
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1217 protected this(String contentType, int stateMask) { |
| 162 | 1218 //Assert.isNotNull(contentType); |
| 129 | 1219 fContentType= contentType; |
| 1220 fStateMask= stateMask; | |
| 1221 } | |
| 1222 | |
| 1223 /* | |
| 1224 * @see java.lang.Object#equals(java.lang.Object) | |
| 1225 */ | |
| 162 | 1226 public override int opEquals(Object obj) { |
| 1227 if (obj is null || obj.classinfo !is this.classinfo ) | |
| 129 | 1228 return false; |
| 134 | 1229 TextHoverKey textHoverKey= cast(TextHoverKey)obj; |
| 129 | 1230 return textHoverKey.fContentType.equals(fContentType) && textHoverKey.fStateMask is fStateMask; |
| 1231 } | |
| 1232 | |
| 1233 /* | |
| 1234 * @see java.lang.Object#hashCode() | |
| 1235 */ | |
| 160 | 1236 public override hash_t toHash() { |
| 162 | 1237 return fStateMask << 16 | .toHash(fContentType); |
| 129 | 1238 } |
| 1239 | |
| 1240 /** | |
| 1241 * Sets the state mask of this text hover key. | |
| 1242 * | |
| 1243 * @param stateMask the state mask | |
| 1244 */ | |
| 1245 private void setStateMask(int stateMask) { | |
| 1246 fStateMask= stateMask; | |
| 1247 } | |
| 1248 } | |
|
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1249 |
| 129 | 1250 /** |
| 1251 * Captures and remembers the viewer state (selection and visual position). {@link TextViewer.ViewerState} | |
| 1252 * instances are normally used once and then discarded, similar to the following snippet: | |
| 1253 * <pre> | |
| 1254 * ViewerState state= new ViewerState(); // remember the state | |
| 1255 * doStuff(); // operation that may call setRedraw() and perform complex document modifications | |
| 1256 * state.restore(true); // restore the remembered state | |
| 1257 * </pre> | |
|
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1258 * |
| 129 | 1259 * @since 3.3 |
| 1260 */ | |
| 1261 private final class ViewerState { | |
| 1262 /** The position tracking the selection. */ | |
| 1263 private Position fSelection; | |
| 1264 /** <code>true</code> if {@link #fSelection} was originally backwards. */ | |
| 1265 private bool fReverseSelection; | |
| 1266 /** <code>true</code> if the selection has been updated while in redraw(off) mode. */ | |
| 1267 private bool fSelectionSet; | |
| 1268 /** The position tracking the visually stable line. */ | |
| 1269 private Position fStableLine; | |
| 1270 /** The pixel offset of the stable line measured from the client area. */ | |
| 1271 private int fStablePixel; | |
| 1272 | |
| 1273 /** The position updater for {@link #fSelection} and {@link #fStableLine}. */ | |
| 1274 private IPositionUpdater fUpdater; | |
| 1275 /** The document that the position updater and the positions are registered with. */ | |
| 1276 private IDocument fUpdaterDocument; | |
| 1277 /** The position category used by {@link #fUpdater}. */ | |
| 1278 private String fUpdaterCategory; | |
| 1279 | |
| 1280 /** | |
| 1281 * Creates a new viewer state instance and connects it to the current document. | |
| 1282 */ | |
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1283 public this() { |
| 129 | 1284 IDocument document= getDocument(); |
| 1285 if (document !is null) | |
| 1286 connect(document); | |
| 1287 } | |
| 1288 | |
| 1289 /** | |
| 1290 * Returns the normalized selection, i.e. the the selection length is always non-negative. | |
|
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1291 * |
| 129 | 1292 * @return the normalized selection |
| 1293 */ | |
| 1294 public Point getSelection() { | |
| 1295 if (fSelection is null) | |
| 1296 return new Point(-1, -1); | |
| 1297 return new Point(fSelection.getOffset(), fSelection.getLength()); | |
| 1298 } | |
| 1299 | |
| 1300 /** | |
| 1301 * Updates the selection. | |
|
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1302 * |
| 129 | 1303 * @param offset the new selection offset |
| 1304 * @param length the new selection length | |
| 1305 */ | |
| 1306 public void updateSelection(int offset, int length) { | |
| 1307 fSelectionSet= true; | |
| 1308 if (fSelection is null) | |
| 1309 fSelection= new Position(offset, length); | |
| 1310 else | |
| 1311 updatePosition(fSelection, offset, length); | |
| 1312 } | |
| 1313 | |
| 1314 /** | |
| 1315 * Restores the state and disconnects it from the document. The selection is no longer | |
| 1316 * tracked after this call. | |
|
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1317 * |
| 129 | 1318 * @param restoreViewport <code>true</code> to restore both selection and viewport, |
| 1319 * <code>false</code> to only restore the selection | |
| 1320 */ | |
| 1321 public void restore(bool restoreViewport) { | |
| 1322 if (isConnected()) | |
| 1323 disconnect(); | |
| 1324 if (fSelection !is null) { | |
| 1325 int offset= fSelection.getOffset(); | |
| 1326 int length= fSelection.getLength(); | |
| 1327 if (fReverseSelection) { | |
| 1328 offset-= length; | |
| 1329 length= -length; | |
| 1330 } | |
| 1331 setSelectedRange(offset, length); | |
| 1332 if (restoreViewport) | |
| 1333 updateViewport(); | |
| 1334 } | |
| 1335 } | |
| 1336 | |
| 1337 /** | |
| 1338 * Updates the viewport, trying to keep the | |
| 1339 * {@linkplain StyledText#getLinePixel(int) line pixel} of the caret line stable. If the | |
| 1340 * selection has been updated while in redraw(false) mode, the new selection is revealed. | |
| 1341 */ | |
| 1342 private void updateViewport() { | |
| 1343 if (fSelectionSet) { | |
| 1344 revealRange(fSelection.getOffset(), fSelection.getLength()); | |
| 1345 } else if (fStableLine !is null) { | |
| 1346 int stableLine; | |
| 1347 try { | |
| 1348 stableLine= fUpdaterDocument.getLineOfOffset(fStableLine.getOffset()); | |
| 1349 } catch (BadLocationException x) { | |
| 1350 // ignore and return silently | |
| 1351 return; | |
| 1352 } | |
| 1353 int stableWidgetLine= getClosestWidgetLineForModelLine(stableLine); | |
| 1354 if (stableWidgetLine is -1) | |
| 1355 return; | |
| 1356 int linePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1357 int delta= fStablePixel - linePixel; | |
| 1358 int topPixel= getTextWidget().getTopPixel(); | |
| 1359 getTextWidget().setTopPixel(topPixel - delta); | |
| 1360 } | |
| 1361 } | |
| 1362 | |
| 1363 /** | |
| 1364 * Remembers the viewer state. | |
|
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1365 * |
| 129 | 1366 * @param document the document to remember the state of |
| 1367 */ | |
| 1368 private void connect(IDocument document) { | |
| 1369 Assert.isLegal(document !is null); | |
| 1370 Assert.isLegal(!isConnected()); | |
| 1371 fUpdaterDocument= document; | |
| 1372 try { | |
| 162 | 1373 fUpdaterCategory= SELECTION_POSITION_CATEGORY ~ Integer.toString(toHash()); |
| 129 | 1374 fUpdater= new NonDeletingPositionUpdater(fUpdaterCategory); |
| 1375 fUpdaterDocument.addPositionCategory(fUpdaterCategory); | |
| 1376 fUpdaterDocument.addPositionUpdater(fUpdater); | |
| 1377 | |
| 1378 Point selectionRange= getSelectedRange(); | |
| 1379 fReverseSelection= selectionRange.y < 0; | |
| 1380 int offset, length; | |
| 1381 if (fReverseSelection) { | |
| 1382 offset= selectionRange.x + selectionRange.y; | |
| 1383 length= -selectionRange.y; | |
| 1384 } else { | |
| 1385 offset= selectionRange.x; | |
| 1386 length= selectionRange.y; | |
| 1387 } | |
| 1388 | |
| 1389 fSelection= new Position(offset, length); | |
| 1390 fSelectionSet= false; | |
| 1391 fUpdaterDocument.addPosition(fUpdaterCategory, fSelection); | |
| 1392 | |
| 1393 int stableLine= getStableLine(); | |
| 1394 int stableWidgetLine= modelLine2WidgetLine(stableLine); | |
| 1395 fStablePixel= getTextWidget().getLinePixel(stableWidgetLine); | |
| 1396 IRegion stableLineInfo= fUpdaterDocument.getLineInformation(stableLine); | |
| 1397 fStableLine= new Position(stableLineInfo.getOffset(), stableLineInfo.getLength()); | |
| 1398 fUpdaterDocument.addPosition(fUpdaterCategory, fStableLine); | |
| 1399 } catch (BadPositionCategoryException e) { | |
| 1400 // cannot happen | |
| 1401 Assert.isTrue(false); | |
| 1402 } catch (BadLocationException e) { | |
| 1403 // should not happen except on concurrent modification | |
| 1404 // ignore and disconnect | |
| 1405 disconnect(); | |
| 1406 } | |
| 1407 } | |
| 1408 | |
| 1409 /** | |
| 1410 * Updates a position with the given information and clears its deletion state. | |
|
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1411 * |
| 129 | 1412 * @param position the position to update |
| 1413 * @param offset the new selection offset | |
| 1414 * @param length the new selection length | |
| 1415 */ | |
| 1416 private void updatePosition(Position position, int offset, int length) { | |
| 1417 position.setOffset(offset); | |
| 1418 position.setLength(length); | |
| 1419 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=32795 | |
| 162 | 1420 position.isDeleted_= false; |
| 129 | 1421 } |
| 1422 | |
| 1423 /** | |
| 1424 * Returns the document line to keep visually stable. If the caret line is (partially) | |
| 1425 * visible, it is returned, otherwise the topmost (partially) visible line is returned. | |
|
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1426 * |
| 129 | 1427 * @return the visually stable line of this viewer state |
| 1428 */ | |
| 1429 private int getStableLine() { | |
| 1430 int stableLine; // the model line that we try to keep stable | |
| 1431 int caretLine= getTextWidget().getLineAtOffset(getTextWidget().getCaretOffset()); | |
| 1432 if (caretLine < JFaceTextUtil.getPartialTopIndex(getTextWidget()) || caretLine > JFaceTextUtil.getPartialBottomIndex(getTextWidget())) { | |
|
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1433 stableLine= JFaceTextUtil.getPartialTopIndex(this.outer); |
| 129 | 1434 } else { |
| 1435 stableLine= widgetLine2ModelLine(caretLine); | |
| 1436 } | |
| 1437 return stableLine; | |
| 1438 } | |
| 1439 | |
| 1440 /** | |
| 1441 * Returns <code>true</code> if the viewer state is being tracked, <code>false</code> | |
| 1442 * otherwise. | |
|
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1443 * |
| 129 | 1444 * @return the tracking state |
| 1445 */ | |
| 1446 private bool isConnected() { | |
| 1447 return fUpdater !is null; | |
| 1448 } | |
| 1449 | |
| 1450 /** | |
| 1451 * Disconnects from the document. | |
| 1452 */ | |
| 1453 private void disconnect() { | |
| 1454 Assert.isTrue(isConnected()); | |
| 1455 try { | |
| 1456 fUpdaterDocument.removePosition(fUpdaterCategory, fSelection); | |
| 1457 fUpdaterDocument.removePosition(fUpdaterCategory, fStableLine); | |
| 1458 fUpdaterDocument.removePositionUpdater(fUpdater); | |
| 1459 fUpdater= null; | |
| 1460 fUpdaterDocument.removePositionCategory(fUpdaterCategory); | |
| 1461 fUpdaterCategory= null; | |
| 1462 } catch (BadPositionCategoryException x) { | |
| 1463 // cannot happen | |
| 1464 Assert.isTrue(false); | |
| 1465 } | |
| 1466 } | |
| 1467 } | |
| 1468 | |
| 1469 /** | |
| 1470 * Internal cursor listener i.e. aggregation of mouse and key listener. | |
|
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1471 * |
| 129 | 1472 * @since 3.0 |
| 1473 */ | |
| 1474 private class CursorListener : KeyListener, MouseListener { | |
| 1475 | |
| 1476 /** | |
| 1477 * Installs this cursor listener. | |
| 1478 */ | |
| 1479 private void install() { | |
| 1480 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1481 fTextWidget.addKeyListener(this); | |
| 1482 fTextWidget.addMouseListener(this); | |
| 1483 } | |
| 1484 } | |
| 1485 | |
| 1486 /** | |
| 1487 * Uninstalls this cursor listener. | |
| 1488 */ | |
| 1489 private void uninstall() { | |
| 1490 if (fTextWidget !is null && !fTextWidget.isDisposed()) { | |
| 1491 fTextWidget.removeKeyListener(this); | |
| 1492 fTextWidget.removeMouseListener(this); | |
| 1493 } | |
| 1494 } | |
| 1495 | |
| 1496 /* | |
| 1497 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1498 */ | |
| 1499 public void keyPressed(KeyEvent event) { | |
| 1500 } | |
| 1501 | |
| 1502 /* | |
| 1503 * @see KeyListener#keyPressed(dwt.events.KeyEvent) | |
| 1504 */ | |
| 1505 public void keyReleased(KeyEvent e) { | |
| 1506 if (fTextWidget.getSelectionCount() is 0) { | |
| 1507 fLastSentSelectionChange= null; | |
| 1508 queuePostSelectionChanged(e.character is DWT.DEL); | |
| 1509 } | |
| 1510 } | |
| 1511 | |
| 1512 /* | |
| 1513 * @see MouseListener#mouseDoubleClick(dwt.events.MouseEvent) | |
| 1514 */ | |
| 1515 public void mouseDoubleClick(MouseEvent e) { | |
| 1516 } | |
| 1517 | |
| 1518 /* | |
| 1519 * @see MouseListener#mouseDown(dwt.events.MouseEvent) | |
| 1520 */ | |
| 1521 public void mouseDown(MouseEvent e) { | |
| 1522 } | |
| 1523 | |
| 1524 /* | |
| 1525 * @see MouseListener#mouseUp(dwt.events.MouseEvent) | |
| 1526 */ | |
| 1527 public void mouseUp(MouseEvent event) { | |
| 1528 if (fTextWidget.getSelectionCount() is 0) | |
| 1529 queuePostSelectionChanged(false); | |
| 1530 } | |
| 1531 } | |
| 1532 | |
| 1533 /** | |
| 1534 * Internal listener to document rewrite session state changes. | |
| 1535 * @since 3.1 | |
| 1536 */ | |
| 1537 private class DocumentRewriteSessionListener : IDocumentRewriteSessionListener { | |
| 1538 | |
| 1539 /* | |
| 1540 * @see dwtx.jface.text.IDocumentRewriteSessionListener#documentRewriteSessionChanged(dwtx.jface.text.DocumentRewriteSessionEvent) | |
| 1541 */ | |
| 1542 public void documentRewriteSessionChanged(DocumentRewriteSessionEvent event) { | |
| 137 | 1543 IRewriteTarget target= this.outer.getRewriteTarget(); |
| 129 | 1544 // FIXME always use setRedraw to avoid flickering due to scrolling |
| 1545 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=158746 | |
| 1546 bool toggleRedraw= true || event.getSession().getSessionType() !is DocumentRewriteSessionType.UNRESTRICTED_SMALL; | |
| 1547 final bool viewportStabilize= !toggleRedraw; | |
| 1548 if (DocumentRewriteSessionEvent.SESSION_START is event.getChangeType()) { | |
| 1549 if (toggleRedraw) | |
| 1550 target.setRedraw(false); | |
| 1551 target.beginCompoundChange(); | |
| 1552 if (viewportStabilize && fViewerState is null) | |
| 1553 fViewerState= new ViewerState(); | |
| 1554 } else if (DocumentRewriteSessionEvent.SESSION_STOP is event.getChangeType()) { | |
| 1555 if (viewportStabilize && fViewerState !is null) { | |
| 1556 fViewerState.restore(true); | |
| 1557 fViewerState= null; | |
| 1558 } | |
| 1559 target.endCompoundChange(); | |
| 1560 if (toggleRedraw) | |
| 1561 target.setRedraw(true); | |
| 1562 } | |
| 1563 } | |
| 1564 } | |
|
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1565 |
|
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1566 |
| 129 | 1567 /** |
| 1568 * Identifies the scrollbars as originators of a view port change. | |
| 1569 */ | |
| 1570 protected static final int SCROLLER= 1; | |
| 1571 /** | |
| 1572 * Identifies mouse moves as originators of a view port change. | |
| 1573 */ | |
| 1574 protected static final int MOUSE= 2; | |
| 1575 /** | |
| 1576 * Identifies mouse button up as originator of a view port change. | |
| 1577 */ | |
| 1578 protected static final int MOUSE_END= 3; | |
| 1579 /** | |
| 1580 * Identifies key strokes as originators of a view port change. | |
| 1581 */ | |
| 1582 protected static final int KEY= 4; | |
| 1583 /** | |
| 1584 * Identifies window resizing as originator of a view port change. | |
| 1585 */ | |
| 1586 protected static final int RESIZE= 5; | |
| 1587 /** | |
| 1588 * Identifies internal reasons as originators of a view port change. | |
| 1589 */ | |
| 1590 protected static final int INTERNAL= 6; | |
| 1591 | |
| 1592 /** Internal name of the position category used selection preservation during shift. */ | |
| 1593 protected static final String SHIFTING= "__TextViewer_shifting"; //$NON-NLS-1$ | |
| 1594 | |
| 1595 /** | |
| 1596 * Base position category name used by the selection updater | |
| 1597 * @since 3.1 | |
| 1598 */ | |
| 147 | 1599 private static const String SELECTION_POSITION_CATEGORY= "_textviewer_selection_category"; //$NON-NLS-1$ |
| 129 | 1600 /** The viewer's text widget */ |
| 1601 private StyledText fTextWidget; | |
| 1602 /** The viewer's input document */ | |
| 1603 private IDocument fDocument; | |
| 1604 /** The viewer's visible document */ | |
| 1605 private IDocument fVisibleDocument; | |
| 1606 /** The viewer's document adapter */ | |
| 1607 private IDocumentAdapter fDocumentAdapter; | |
| 1608 /** The slave document manager */ | |
| 1609 private ISlaveDocumentManager fSlaveDocumentManager; | |
| 1610 /** The text viewer's double click strategies connector */ | |
| 1611 private TextDoubleClickStrategyConnector fDoubleClickStrategyConnector; | |
| 1612 /** The text viewer's view port guard */ | |
| 1613 private ViewportGuard fViewportGuard; | |
| 1614 /** Caches the graphical coordinate of the first visible line */ | |
| 1615 private int fTopInset= 0; | |
| 1616 /** The most recent document modification as widget command */ | |
| 159 | 1617 private WidgetCommand fWidgetCommand; |
| 129 | 1618 /** The DWT control's scrollbars */ |
| 1619 private ScrollBar fScroller; | |
| 1620 /** Listener on the visible document */ | |
| 159 | 1621 private VisibleDocumentListener fVisibleDocumentListener; |
| 129 | 1622 /** Verify listener */ |
| 159 | 1623 private TextVerifyListener fVerifyListener; |
| 129 | 1624 /** The most recent widget modification as document command */ |
| 159 | 1625 private DocumentCommand fDocumentCommand; |
| 129 | 1626 /** The viewer's find/replace target */ |
| 1627 private IFindReplaceTarget fFindReplaceTarget; | |
| 1628 /** | |
| 1629 * The text viewer's hovering controller | |
| 1630 * @since 2.0 | |
| 1631 */ | |
| 1632 private TextViewerHoverManager fTextHoverManager; | |
| 1633 /** | |
| 1634 * The viewer widget token keeper | |
| 1635 * @since 2.0 | |
| 1636 */ | |
| 1637 private IWidgetTokenKeeper fWidgetTokenKeeper; | |
| 1638 /** | |
| 1639 * The viewer's manager of verify key listeners | |
| 1640 * @since 2.0 | |
| 1641 */ | |
| 159 | 1642 private VerifyKeyListenersManager fVerifyKeyListenersManager; |
| 129 | 1643 /** |
| 1644 * The mark position. | |
| 1645 * @since 2.0 | |
| 1646 */ | |
| 1647 protected Position fMarkPosition; | |
| 1648 /** | |
| 1649 * The mark position category. | |
| 1650 * @since 2.0 | |
| 1651 */ | |
| 162 | 1652 private /+const+/ String MARK_POSITION_CATEGORY; |
| 129 | 1653 /** |
| 1654 * The mark position updater | |
| 1655 * @since 2.0 | |
| 1656 */ | |
| 162 | 1657 private /+const+/ IPositionUpdater fMarkPositionUpdater; |
| 129 | 1658 /** |
| 1659 * The flag indicating the redraw behavior | |
| 1660 * @since 2.0 | |
| 1661 */ | |
| 1662 private int fRedrawCounter= 0; | |
| 1663 /** | |
| 1664 * The viewer's rewrite target | |
| 1665 * @since 2.0 | |
| 1666 */ | |
| 1667 private IRewriteTarget fRewriteTarget; | |
| 1668 /** | |
| 1669 * The viewer's cursor listener. | |
| 1670 * @since 3.0 | |
| 1671 */ | |
| 1672 private CursorListener fCursorListener; | |
| 1673 /** | |
| 1674 * Last selection range sent to selection change listeners. | |
| 1675 * @since 3.0 | |
| 1676 */ | |
| 1677 private IRegion fLastSentSelectionChange; | |
| 1678 /** | |
| 1679 * The registered post selection changed listeners. | |
| 1680 * @since 3.0 | |
| 1681 */ | |
| 1682 private List fPostSelectionChangedListeners; | |
| 1683 /** | |
| 1684 * Queued post selection changed events count. | |
| 1685 * @since 3.0 | |
| 1686 */ | |
| 162 | 1687 private /+const+/ int[] fNumberOfPostSelectionChangedEvents; |
| 129 | 1688 /** |
| 1689 * Last selection range sent to post selection change listeners. | |
| 1690 * @since 3.0 | |
| 1691 */ | |
| 1692 private IRegion fLastSentPostSelectionChange; | |
| 1693 /** | |
| 1694 * The set of registered editor helpers. | |
| 1695 * @since 3.1 | |
| 1696 */ | |
| 162 | 1697 private Set fEditorHelpers; |
| 129 | 1698 /** |
| 1699 * The internal rewrite session listener. | |
| 1700 * @since 3.1 | |
| 1701 */ | |
| 159 | 1702 private DocumentRewriteSessionListener fDocumentRewriteSessionListener; |
| 129 | 1703 |
| 1704 /** Should the auto indent strategies ignore the next edit operation */ | |
| 1705 protected bool fIgnoreAutoIndent= false; | |
| 1706 /** The strings a line is prefixed with on SHIFT_RIGHT and removed from each line on SHIFT_LEFT */ | |
| 1707 protected Map fIndentChars; | |
| 1708 /** The string a line is prefixed with on PREFIX and removed from each line on STRIP_PREFIX */ | |
| 1709 protected Map fDefaultPrefixChars; | |
| 1710 /** The text viewer's text double click strategies */ | |
| 1711 protected Map fDoubleClickStrategies; | |
| 1712 /** The text viewer's undo manager */ | |
| 1713 protected IUndoManager fUndoManager; | |
| 1714 /** The text viewer's auto indent strategies */ | |
| 1715 protected Map fAutoIndentStrategies; | |
| 1716 /** The text viewer's text hovers */ | |
| 1717 protected Map fTextHovers; | |
| 1718 /** All registered view port listeners> */ | |
| 1719 protected List fViewportListeners; | |
| 1720 /** The last visible vertical position of the top line */ | |
| 1721 protected int fLastTopPixel; | |
| 1722 /** All registered text listeners */ | |
| 1723 protected List fTextListeners; | |
| 1724 /** All registered text input listeners */ | |
| 1725 protected List fTextInputListeners; | |
| 1726 /** The text viewer's event consumer */ | |
| 1727 protected IEventConsumer fEventConsumer; | |
| 1728 /** Indicates whether the viewer's text presentation should be replaced are modified. */ | |
| 1729 protected bool fReplaceTextPresentation= false; | |
| 1730 /** | |
| 1731 * The creator of the text hover control | |
| 1732 * @since 2.0 | |
| 1733 */ | |
| 1734 protected IInformationControlCreator fHoverControlCreator; | |
| 1735 /** | |
| 1736 * The mapping between model and visible document. | |
| 1737 * @since 2.1 | |
| 1738 */ | |
| 1739 protected IDocumentInformationMapping fInformationMapping; | |
| 1740 /** | |
| 1741 * The viewer's paint manager. | |
| 1742 * @since 2.1 | |
| 1743 */ | |
| 1744 protected PaintManager fPaintManager; | |
| 1745 /** | |
| 1746 * The viewers partitioning. I.e. the partitioning name the viewer uses to access partitioning information of its input document. | |
| 1747 * @since 3.0 | |
| 1748 */ | |
| 1749 protected String fPartitioning; | |
| 1750 /** | |
| 1751 * All registered text presentation listeners. | |
| 1752 * since 3.0 | |
| 1753 */ | |
| 1754 protected List fTextPresentationListeners; | |
| 1755 /** | |
| 1756 * The find/replace document adapter. | |
| 1757 * @since 3.0 | |
| 1758 */ | |
| 1759 protected FindReplaceDocumentAdapter fFindReplaceDocumentAdapter; | |
| 1760 | |
| 1761 /** | |
| 1762 * The text viewer's hyperlink detectors. | |
| 1763 * @since 3.1 | |
| 1764 */ | |
| 1765 protected IHyperlinkDetector[] fHyperlinkDetectors; | |
| 1766 /** | |
| 1767 * The text viewer's hyperlink presenter. | |
| 1768 * @since 3.1 | |
| 1769 */ | |
| 1770 protected IHyperlinkPresenter fHyperlinkPresenter; | |
| 1771 /** | |
| 1772 * The text viewer's hyperlink manager. | |
| 1773 * @since 3.1 | |
| 1774 */ | |
| 1775 protected HyperlinkManager fHyperlinkManager; | |
| 1776 /** | |
| 1777 * The DWT key modifier mask which in combination | |
| 1778 * with the left mouse button triggers the hyperlink mode. | |
| 1779 * @since 3.1 | |
| 1780 */ | |
| 1781 protected int fHyperlinkStateMask; | |
| 1782 /** | |
| 1783 * The viewer state when in non-redraw state, <code>null</code> otherwise. | |
| 1784 * @since 3.3 | |
| 1785 */ | |
| 1786 private ViewerState fViewerState; | |
| 1787 /** | |
| 1788 * The editor's tab converter. | |
| 1789 * @since 3.3 | |
| 1790 */ | |
| 1791 private IAutoEditStrategy fTabsToSpacesConverter; | |
| 1792 | |
| 1793 | |
| 1794 //---- Construction and disposal ------------------ | |
| 1795 | |
| 159 | 1796 private void instanceInit(){ |
| 1797 fWidgetCommand= new WidgetCommand(); | |
| 1798 fVisibleDocumentListener= new VisibleDocumentListener(); | |
| 1799 fVerifyListener= new TextVerifyListener(); | |
| 1800 fDocumentCommand= new DocumentCommand(); | |
| 1801 fVerifyKeyListenersManager= new VerifyKeyListenersManager(); | |
| 160 | 1802 MARK_POSITION_CATEGORY=Format("__mark_category_{}", toHash()); //$NON-NLS-1$ |
| 159 | 1803 fMarkPositionUpdater= new DefaultPositionUpdater(MARK_POSITION_CATEGORY); |
| 1804 fDocumentRewriteSessionListener= new DocumentRewriteSessionListener(); | |
| 162 | 1805 fNumberOfPostSelectionChangedEvents= new int[1]; |
| 1806 fEditorHelpers= new HashSet(); | |
| 159 | 1807 } |
| 129 | 1808 /** |
| 1809 * Internal use only | |
| 1810 */ | |
|
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1811 protected this() { |
| 159 | 1812 instanceInit(); |
| 129 | 1813 } |
| 1814 | |
| 1815 /** | |
| 1816 * Create a new text viewer with the given DWT style bits. | |
| 1817 * The viewer is ready to use but does not have any plug-in installed. | |
| 1818 * | |
| 1819 * @param parent the parent of the viewer's control | |
| 1820 * @param styles the DWT style bits for the viewer's control, | |
| 1821 * <em>if <code>DWT.WRAP</code> is set then a custom document adapter needs to be provided, see {@link #createDocumentAdapter()} | |
| 1822 */ | |
|
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1823 public this(Composite parent, int styles) { |
| 159 | 1824 instanceInit(); |
| 129 | 1825 createControl(parent, styles); |
| 1826 } | |
| 1827 | |
| 1828 /** | |
| 1829 * Factory method to create the text widget to be used as the viewer's text widget. | |
| 1830 * | |
| 1831 * @param parent the parent of the styled text | |
| 1832 * @param styles the styles for the styled text | |
| 1833 * @return the text widget to be used | |
| 1834 */ | |
| 1835 protected StyledText createTextWidget(Composite parent, int styles) { | |
| 1836 return new StyledText(parent, styles); | |
| 1837 } | |
| 1838 | |
| 1839 /** | |
| 1840 * Factory method to create the document adapter to be used by this viewer. | |
| 1841 * | |
| 1842 * @return the document adapter to be used | |
| 1843 */ | |
| 1844 protected IDocumentAdapter createDocumentAdapter() { | |
| 1845 return new DefaultDocumentAdapter(); | |
| 1846 } | |
| 1847 | |
| 1848 /** | |
| 1849 * Creates the viewer's DWT control. The viewer's text widget either is | |
| 1850 * the control or is a child of the control. | |
| 1851 * | |
| 1852 * @param parent the parent of the viewer's control | |
| 1853 * @param styles the DWT style bits for the viewer's control | |
| 1854 */ | |
| 1855 protected void createControl(Composite parent, int styles) { | |
| 1856 | |
| 1857 fTextWidget= createTextWidget(parent, styles); | |
|
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1858 |
| 129 | 1859 // Support scroll page upon MOD1+MouseWheel |
| 135 | 1860 fTextWidget.addListener(DWT.MouseWheel, new class() Listener { |
| 129 | 1861 |
| 1862 public void handleEvent(Event event) { | |
| 1863 if (((event.stateMask & DWT.MOD1) is 0)) | |
| 1864 return; | |
| 1865 | |
| 1866 int topIndex= fTextWidget.getTopIndex(); | |
| 1867 int bottomIndex= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 1868 | |
| 1869 if (event.count > 0) | |
| 1870 fTextWidget.setTopIndex(2 * topIndex - bottomIndex); | |
| 1871 else | |
| 1872 fTextWidget.setTopIndex(bottomIndex); | |
| 1873 | |
| 1874 updateViewportListeners(INTERNAL); | |
| 1875 } | |
| 1876 }); | |
|
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1877 |
| 129 | 1878 fTextWidget.addDisposeListener( |
| 135 | 1879 new class() DisposeListener { |
| 129 | 1880 public void widgetDisposed(DisposeEvent e) { |
| 1881 handleDispose(); | |
| 1882 } | |
| 1883 } | |
| 1884 ); | |
| 1885 | |
| 1886 fTextWidget.setFont(parent.getFont()); | |
| 1887 fTextWidget.setDoubleClickEnabled(true); | |
| 1888 | |
| 1889 /* | |
| 1890 * Disable DWT Shift+TAB traversal in this viewer | |
| 1891 * 1GIYQ9K: ITPUI:WINNT - StyledText swallows Shift+TAB | |
| 1892 */ | |
| 135 | 1893 fTextWidget.addTraverseListener(new class() TraverseListener { |
| 129 | 1894 public void keyTraversed(TraverseEvent e) { |
| 1895 if ((DWT.SHIFT is e.stateMask) && ('\t' is e.character)) | |
| 1896 e.doit= false; | |
| 1897 } | |
| 1898 }); | |
| 1899 | |
| 1900 // where does the first line start | |
| 1901 fTopInset= -fTextWidget.computeTrim(0, 0, 0, 0).y; | |
| 1902 | |
| 1903 fVerifyListener.forward(true); | |
| 1904 fTextWidget.addVerifyListener(fVerifyListener); | |
| 1905 | |
| 135 | 1906 fTextWidget.addSelectionListener(new class() SelectionListener { |
| 129 | 1907 public void widgetDefaultSelected(SelectionEvent event) { |
| 1908 selectionChanged(event.x, event.y - event.x); | |
| 1909 } | |
| 1910 public void widgetSelected(SelectionEvent event) { | |
| 1911 selectionChanged(event.x, event.y - event.x); | |
| 1912 } | |
| 1913 }); | |
| 1914 | |
| 1915 fCursorListener= new CursorListener(); | |
| 1916 fCursorListener.install(); | |
| 1917 | |
| 1918 initializeViewportUpdate(); | |
| 1919 } | |
| 1920 | |
| 1921 /* | |
| 1922 * @see Viewer#getControl() | |
| 1923 */ | |
| 1924 public Control getControl() { | |
| 1925 return fTextWidget; | |
| 1926 } | |
| 1927 | |
| 1928 /* | |
| 1929 * @see ITextViewer#activatePlugins() | |
| 1930 */ | |
| 1931 public void activatePlugins() { | |
| 1932 | |
| 1933 if (fDoubleClickStrategies !is null && !fDoubleClickStrategies.isEmpty() && fDoubleClickStrategyConnector is null) { | |
| 1934 fDoubleClickStrategyConnector= new TextDoubleClickStrategyConnector(); | |
| 1935 fTextWidget.addWordMovementListener(fDoubleClickStrategyConnector); | |
| 1936 fTextWidget.addMouseListener(fDoubleClickStrategyConnector); | |
| 1937 } | |
| 1938 | |
| 1939 ensureHoverControlManagerInstalled(); | |
| 1940 ensureHyperlinkManagerInstalled(); | |
| 1941 | |
| 1942 if (fUndoManager !is null) { | |
| 1943 fUndoManager.connect(this); | |
| 1944 fUndoManager.reset(); | |
| 1945 } | |
| 1946 } | |
| 1947 | |
| 1948 /** | |
| 1949 * After this method has been executed the caller knows that any installed text hover has been installed. | |
| 1950 */ | |
| 1951 private void ensureHoverControlManagerInstalled() { | |
| 1952 if (fTextHovers !is null && !fTextHovers.isEmpty() && fHoverControlCreator !is null && fTextHoverManager is null) { | |
| 1953 fTextHoverManager= new TextViewerHoverManager(this, fHoverControlCreator); | |
| 1954 fTextHoverManager.install(this.getTextWidget()); | |
| 1955 fTextHoverManager.setSizeConstraints(TEXT_HOVER_WIDTH_CHARS, TEXT_HOVER_HEIGHT_CHARS, false, true); | |
| 1956 fTextHoverManager.setInformationControlReplacer(new StickyHoverManager(this)); | |
| 1957 } | |
| 1958 } | |
| 1959 | |
| 1960 /* | |
| 1961 * @see ITextViewer#resetPlugins() | |
| 1962 */ | |
| 1963 public void resetPlugins() { | |
| 1964 if (fUndoManager !is null) | |
| 1965 fUndoManager.reset(); | |
| 1966 } | |
| 1967 | |
| 1968 /** | |
| 1969 * Frees all resources allocated by this viewer. Internally called when the viewer's | |
| 1970 * control has been disposed. | |
| 1971 */ | |
| 1972 protected void handleDispose() { | |
|
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1973 |
| 129 | 1974 setDocument(null); |
| 1975 | |
| 1976 if (fPaintManager !is null) { | |
| 1977 fPaintManager.dispose(); | |
| 1978 fPaintManager= null; | |
| 1979 } | |
| 1980 | |
| 1981 removeViewPortUpdate(); | |
| 1982 fViewportGuard= null; | |
| 1983 | |
| 1984 if (fViewportListeners !is null) { | |
| 1985 fViewportListeners.clear(); | |
| 1986 fViewportListeners= null; | |
| 1987 } | |
| 1988 | |
| 1989 if (fTextListeners !is null) { | |
| 1990 fTextListeners.clear(); | |
| 1991 fTextListeners= null; | |
| 1992 } | |
| 1993 | |
| 1994 if (fTextInputListeners !is null) { | |
| 1995 fTextInputListeners.clear(); | |
| 1996 fTextInputListeners= null; | |
| 1997 } | |
| 1998 | |
| 1999 if (fPostSelectionChangedListeners !is null) { | |
| 2000 fPostSelectionChangedListeners.clear(); | |
| 2001 fPostSelectionChangedListeners= null; | |
| 2002 } | |
| 2003 | |
| 2004 if (fAutoIndentStrategies !is null) { | |
| 2005 fAutoIndentStrategies.clear(); | |
| 2006 fAutoIndentStrategies= null; | |
| 2007 } | |
| 2008 | |
| 2009 if (fUndoManager !is null) { | |
| 2010 fUndoManager.disconnect(); | |
| 2011 fUndoManager= null; | |
| 2012 } | |
| 2013 | |
| 2014 if (fDoubleClickStrategies !is null) { | |
| 2015 fDoubleClickStrategies.clear(); | |
| 2016 fDoubleClickStrategies= null; | |
| 2017 } | |
| 2018 | |
| 2019 if (fTextHovers !is null) { | |
| 2020 fTextHovers.clear(); | |
| 2021 fTextHovers= null; | |
| 2022 } | |
| 2023 | |
| 2024 fDoubleClickStrategyConnector= null; | |
| 2025 | |
| 2026 if (fTextHoverManager !is null) { | |
| 2027 fTextHoverManager.dispose(); | |
| 2028 fTextHoverManager= null; | |
| 2029 } | |
| 2030 | |
| 2031 if (fVisibleDocumentListener !is null) { | |
| 2032 if (fVisibleDocument !is null) | |
| 2033 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 2034 fVisibleDocumentListener= null; | |
| 2035 } | |
| 2036 | |
| 2037 if (fDocumentAdapter !is null) { | |
| 2038 fDocumentAdapter.setDocument(null); | |
| 2039 fDocumentAdapter= null; | |
| 2040 } | |
| 2041 | |
| 2042 if (fSlaveDocumentManager !is null) { | |
| 2043 if (fVisibleDocument !is null) | |
| 2044 fSlaveDocumentManager.freeSlaveDocument(fVisibleDocument); | |
| 2045 fSlaveDocumentManager= null; | |
| 2046 } | |
| 2047 | |
| 2048 if (fCursorListener !is null) { | |
| 2049 fCursorListener.uninstall(); | |
| 2050 fCursorListener= null; | |
| 2051 } | |
| 2052 | |
| 2053 if (fHyperlinkManager !is null) { | |
| 2054 fHyperlinkManager.uninstall(); | |
| 2055 fHyperlinkManager= null; | |
| 2056 } | |
| 2057 | |
| 2058 fHyperlinkDetectors= null; | |
| 2059 fVisibleDocument= null; | |
| 2060 fDocument= null; | |
| 2061 fScroller= null; | |
|
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2062 |
| 129 | 2063 fTextWidget= null; |
| 2064 } | |
| 2065 | |
| 2066 | |
| 2067 //---- simple getters and setters | |
| 2068 | |
| 2069 /* | |
| 2070 * @see dwtx.jface.text.ITextViewer#getTextWidget() | |
| 2071 */ | |
| 2072 public StyledText getTextWidget() { | |
| 2073 return fTextWidget; | |
| 2074 } | |
| 2075 | |
| 2076 /** | |
| 2077 * The delay in milliseconds before an empty selection | |
| 2078 * changed event is sent by the cursor listener. | |
| 2079 * <p> | |
| 2080 * Note: The return value is used to initialize the cursor | |
| 2081 * listener. To return a non-constant value has no effect.</p> | |
| 2082 * <p> | |
| 2083 * The same value (<code>500</code>) is used in <code>OpenStrategy.TIME</code>.</p> | |
| 2084 * | |
| 2085 * @return delay in milliseconds | |
| 2086 * @see dwtx.jface.util.OpenStrategy | |
| 2087 * @since 3.0 | |
| 2088 */ | |
| 2089 protected int getEmptySelectionChangedEventDelay() { | |
| 2090 return 500; | |
| 2091 } | |
| 2092 | |
| 2093 /** | |
| 2094 * {@inheritDoc} | |
| 2095 * @deprecated since 3.1, use | |
| 2096 * {@link ITextViewerExtension2#prependAutoEditStrategy(IAutoEditStrategy, String)} and | |
| 2097 * {@link ITextViewerExtension2#removeAutoEditStrategy(IAutoEditStrategy, String)} instead | |
| 2098 */ | |
| 2099 public void setAutoIndentStrategy(IAutoIndentStrategy strategy, String contentType) { | |
|
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2100 setAutoEditStrategies([ strategy ], contentType); |
| 129 | 2101 } |
| 2102 | |
| 2103 /** | |
| 2104 * Sets the given edit strategy as the only strategy for the given content type. | |
| 2105 * | |
| 2106 * @param strategies the auto edit strategies | |
| 2107 * @param contentType the content type | |
| 2108 * @since 3.1 | |
| 2109 */ | |
| 2110 protected final void setAutoEditStrategies(IAutoEditStrategy[] strategies, String contentType) { | |
| 2111 if (fAutoIndentStrategies is null) | |
| 2112 fAutoIndentStrategies= new HashMap(); | |
| 2113 | |
| 134 | 2114 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2115 |
| 2116 if (strategies is null) { | |
| 2117 if (autoEditStrategies is null) | |
| 2118 return; | |
| 2119 | |
| 162 | 2120 fAutoIndentStrategies.put(contentType, cast(Object)null); |
| 129 | 2121 |
| 2122 } else { | |
| 2123 if (autoEditStrategies is null) { | |
| 2124 autoEditStrategies= new ArrayList(); | |
| 162 | 2125 fAutoIndentStrategies.put(contentType, cast(Object)autoEditStrategies); |
| 129 | 2126 } |
| 2127 | |
| 2128 autoEditStrategies.clear(); | |
| 162 | 2129 autoEditStrategies.addAll(Arrays.asList(arraycast!(Object)(strategies))); |
| 129 | 2130 } |
| 2131 } | |
| 2132 | |
| 2133 /* | |
| 2134 * @see dwtx.jface.text.ITextViewerExtension2#prependAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2135 * @since 2.1 | |
| 2136 */ | |
| 2137 public void prependAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2138 | |
| 2139 if (strategy is null || contentType is null) | |
| 162 | 2140 throw new IllegalArgumentException(""); |
| 129 | 2141 |
| 2142 if (fAutoIndentStrategies is null) | |
| 2143 fAutoIndentStrategies= new HashMap(); | |
| 2144 | |
| 134 | 2145 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2146 if (autoEditStrategies is null) { |
| 2147 autoEditStrategies= new ArrayList(); | |
| 162 | 2148 fAutoIndentStrategies.put(contentType,cast(Object) autoEditStrategies); |
| 2149 } | |
| 2150 | |
| 2151 autoEditStrategies.add(0, cast(Object)strategy); | |
| 129 | 2152 } |
| 2153 | |
| 2154 /* | |
| 2155 * @see dwtx.jface.text.ITextViewerExtension2#removeAutoEditStrategy(dwtx.jface.text.IAutoEditStrategy, java.lang.String) | |
| 2156 * @since 2.1 | |
| 2157 */ | |
| 2158 public void removeAutoEditStrategy(IAutoEditStrategy strategy, String contentType) { | |
| 2159 if (fAutoIndentStrategies is null) | |
| 2160 return; | |
| 2161 | |
| 134 | 2162 List autoEditStrategies= cast(List) fAutoIndentStrategies.get(contentType); |
| 129 | 2163 if (autoEditStrategies is null) |
| 2164 return; | |
| 2165 | |
| 2166 for (final Iterator iterator= autoEditStrategies.iterator(); iterator.hasNext(); ) { | |
| 162 | 2167 if (iterator.next().opEquals(cast(Object)strategy)) { |
| 129 | 2168 iterator.remove(); |
| 2169 break; | |
| 2170 } | |
| 2171 } | |
| 2172 | |
| 2173 if (autoEditStrategies.isEmpty()) | |
| 162 | 2174 fAutoIndentStrategies.put(contentType, cast(Object)null); |
| 129 | 2175 } |
| 2176 | |
| 2177 /* | |
| 2178 * @see ITextViewer#setEventConsumer(IEventConsumer) | |
| 2179 */ | |
| 2180 public void setEventConsumer(IEventConsumer consumer) { | |
| 2181 fEventConsumer= consumer; | |
| 2182 } | |
| 2183 | |
| 2184 /* | |
| 2185 * @see ITextViewer#setIndentPrefixes(String[], String) | |
| 2186 */ | |
| 2187 public void setIndentPrefixes(String[] indentPrefixes, String contentType) { | |
| 2188 | |
| 2189 int i= -1; | |
| 2190 bool ok= (indentPrefixes !is null); | |
| 2191 while (ok && ++i < indentPrefixes.length) | |
| 2192 ok= (indentPrefixes[i] !is null); | |
| 2193 | |
| 2194 if (ok) { | |
| 2195 | |
| 2196 if (fIndentChars is null) | |
| 2197 fIndentChars= new HashMap(); | |
| 2198 | |
| 162 | 2199 fIndentChars.put(contentType, new ArrayWrapperObject( stringcast(indentPrefixes))); |
| 129 | 2200 |
| 2201 } else if (fIndentChars !is null) | |
| 2202 fIndentChars.remove(contentType); | |
| 2203 } | |
| 2204 | |
| 2205 /* | |
| 2206 * @see ITextViewer#getTopInset() | |
| 2207 */ | |
| 2208 public int getTopInset() { | |
| 2209 return fTopInset; | |
| 2210 } | |
| 2211 | |
| 2212 /* | |
| 2213 * @see ITextViewer#isEditable() | |
| 2214 */ | |
| 2215 public bool isEditable() { | |
| 2216 if (fTextWidget is null) | |
| 2217 return false; | |
| 2218 return fTextWidget.getEditable(); | |
| 2219 } | |
| 2220 | |
| 2221 /* | |
| 2222 * @see ITextViewer#setEditable(bool) | |
| 2223 */ | |
| 2224 public void setEditable(bool editable) { | |
| 2225 if (fTextWidget !is null) | |
| 2226 fTextWidget.setEditable(editable); | |
| 2227 } | |
| 2228 | |
| 2229 /* | |
| 2230 * @see ITextViewer#setDefaultPrefixes | |
| 2231 * @since 2.0 | |
| 2232 */ | |
| 2233 public void setDefaultPrefixes(String[] defaultPrefixes, String contentType) { | |
| 2234 | |
| 2235 if (defaultPrefixes !is null && defaultPrefixes.length > 0) { | |
| 2236 if (fDefaultPrefixChars is null) | |
| 2237 fDefaultPrefixChars= new HashMap(); | |
| 162 | 2238 fDefaultPrefixChars.put(contentType, new ArrayWrapperObject( stringcast(defaultPrefixes))); |
| 129 | 2239 } else if (fDefaultPrefixChars !is null) |
| 2240 fDefaultPrefixChars.remove(contentType); | |
| 2241 } | |
| 2242 | |
| 2243 /* | |
| 2244 * @see ITextViewer#setUndoManager(IUndoManager) | |
| 2245 */ | |
| 2246 public void setUndoManager(IUndoManager undoManager) { | |
| 2247 fUndoManager= undoManager; | |
| 2248 } | |
| 2249 | |
| 2250 /* | |
| 2251 * @see ITextViewerExtension6#getUndoManager() | |
| 2252 * @since 3.1 | |
| 2253 */ | |
| 2254 public IUndoManager getUndoManager() { | |
| 2255 return fUndoManager; | |
| 2256 } | |
| 2257 | |
| 2258 /* | |
| 2259 * @see ITextViewer#setTextHover(ITextHover, String) | |
| 2260 */ | |
| 2261 public void setTextHover(ITextHover hover, String contentType) { | |
| 2262 setTextHover(hover, contentType, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2263 } | |
| 2264 | |
| 2265 /* | |
| 2266 * @see ITextViewerExtension2#setTextHover(ITextHover, String, int) | |
| 2267 * @since 2.1 | |
| 2268 */ | |
| 2269 public void setTextHover(ITextHover hover, String contentType, int stateMask) { | |
| 2270 TextHoverKey key= new TextHoverKey(contentType, stateMask); | |
| 2271 if (hover !is null) { | |
| 2272 if (fTextHovers is null) { | |
| 2273 fTextHovers= new HashMap(); | |
| 2274 } | |
| 162 | 2275 fTextHovers.put(key, cast(Object)hover); |
| 129 | 2276 } else if (fTextHovers !is null) |
| 2277 fTextHovers.remove(key); | |
| 2278 | |
| 2279 ensureHoverControlManagerInstalled(); | |
| 2280 } | |
| 2281 | |
| 2282 /* | |
| 2283 * @see ITextViewerExtension2#removeTextHovers(String) | |
| 2284 * @since 2.1 | |
| 2285 */ | |
| 2286 public void removeTextHovers(String contentType) { | |
| 2287 if (fTextHovers is null) | |
| 2288 return; | |
| 2289 | |
|
140
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138
diff
changeset
|
2290 Iterator iter= (new HashSet(fTextHovers.keySet())).iterator(); |
| 129 | 2291 while (iter.hasNext()) { |
| 134 | 2292 TextHoverKey key= cast(TextHoverKey)iter.next(); |
| 129 | 2293 if (key.fContentType.equals(contentType)) |
| 2294 fTextHovers.remove(key); | |
| 2295 } | |
| 2296 } | |
| 2297 | |
| 2298 /** | |
| 2299 * Returns the text hover for a given offset. | |
| 2300 * | |
| 2301 * @param offset the offset for which to return the text hover | |
| 2302 * @return the text hover for the given offset | |
| 2303 */ | |
| 2304 protected ITextHover getTextHover(int offset) { | |
| 2305 return getTextHover(offset, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2306 } | |
| 161 | 2307 package ITextHover getTextHover_package(int offset) { |
| 2308 return getTextHover(offset); | |
| 2309 } | |
| 129 | 2310 |
| 2311 /** | |
| 2312 * Returns the text hover for a given offset and a given state mask. | |
| 2313 * | |
| 2314 * @param offset the offset for which to return the text hover | |
| 2315 * @param stateMask the DWT event state mask | |
| 2316 * @return the text hover for the given offset and state mask | |
| 2317 * @since 2.1 | |
| 2318 */ | |
| 161 | 2319 package ITextHover getTextHover_package(int offset, int stateMask) { |
| 2320 return getTextHover(offset,stateMask); | |
| 2321 } | |
| 129 | 2322 protected ITextHover getTextHover(int offset, int stateMask) { |
| 2323 if (fTextHovers is null) | |
| 2324 return null; | |
| 2325 | |
| 2326 IDocument document= getDocument(); | |
| 2327 if (document is null) | |
| 2328 return null; | |
| 2329 | |
| 2330 try { | |
| 2331 TextHoverKey key= new TextHoverKey(TextUtilities.getContentType(document, getDocumentPartitioning(), offset, true), stateMask); | |
| 2332 Object textHover= fTextHovers.get(key); | |
| 2333 if (textHover is null) { | |
| 2334 // Use default text hover | |
| 2335 key.setStateMask(ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK); | |
| 2336 textHover= fTextHovers.get(key); | |
| 2337 } | |
| 134 | 2338 return cast(ITextHover) textHover; |
| 129 | 2339 } catch (BadLocationException x) { |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
2340 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2341 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 2342 } |
| 2343 return null; | |
| 2344 } | |
| 2345 | |
| 2346 /** | |
| 2347 * Returns the text hovering controller of this viewer. | |
| 2348 * | |
| 2349 * @return the text hovering controller of this viewer | |
| 2350 * @since 2.0 | |
| 2351 */ | |
| 2352 protected AbstractInformationControlManager getTextHoveringController() { | |
| 2353 return fTextHoverManager; | |
| 2354 } | |
| 2355 | |
| 2356 /** | |
| 2357 * Sets the creator for the hover controls. | |
| 2358 * | |
| 2359 * @param creator the hover control creator | |
| 2360 * @since 2.0 | |
| 2361 */ | |
| 2362 public void setHoverControlCreator(IInformationControlCreator creator) { | |
| 2363 fHoverControlCreator= creator; | |
| 2364 } | |
| 2365 | |
| 2366 /** | |
| 2367 * {@inheritDoc} | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2368 * |
| 129 | 2369 * @since 3.4 |
| 2370 */ | |
| 159 | 2371 public void setHoverEnrichMode(ITextViewerExtension8_EnrichMode mode) { |
| 129 | 2372 if (fTextHoverManager is null) |
| 2373 return; | |
| 2374 fTextHoverManager.setHoverEnrichMode(mode); | |
| 2375 } | |
| 2376 | |
| 2377 /* | |
| 2378 * @see IWidgetTokenOwner#requestWidgetToken(IWidgetTokenKeeper) | |
| 2379 * @since 2.0 | |
| 2380 */ | |
| 2381 public bool requestWidgetToken(IWidgetTokenKeeper requester) { | |
| 2382 if (fTextWidget !is null) { | |
| 2383 if (fWidgetTokenKeeper !is null) { | |
| 2384 if (fWidgetTokenKeeper is requester) | |
| 2385 return true; | |
| 2386 if (fWidgetTokenKeeper.requestWidgetToken(this)) { | |
| 2387 fWidgetTokenKeeper= requester; | |
| 2388 return true; | |
| 2389 } | |
| 2390 } else { | |
| 2391 fWidgetTokenKeeper= requester; | |
| 2392 return true; | |
| 2393 } | |
| 2394 } | |
| 2395 return false; | |
| 2396 } | |
| 2397 | |
| 2398 /* | |
| 2399 * @see dwtx.jface.text.IWidgetTokenOwnerExtension#requestWidgetToken(dwtx.jface.text.IWidgetTokenKeeper, int) | |
| 2400 * @since 3.0 | |
| 2401 */ | |
| 2402 public bool requestWidgetToken(IWidgetTokenKeeper requester, int priority) { | |
| 2403 if (fTextWidget !is null) { | |
| 2404 if (fWidgetTokenKeeper !is null) { | |
| 2405 | |
| 2406 if (fWidgetTokenKeeper is requester) | |
| 2407 return true; | |
| 2408 | |
| 2409 bool accepted= false; | |
| 138 | 2410 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 2411 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 2412 accepted= extension.requestWidgetToken(this, priority); |
| 2413 } else { | |
| 2414 accepted= fWidgetTokenKeeper.requestWidgetToken(this); | |
| 2415 } | |
| 2416 | |
| 2417 if (accepted) { | |
| 2418 fWidgetTokenKeeper= requester; | |
| 2419 return true; | |
| 2420 } | |
| 2421 | |
| 2422 } else { | |
| 2423 fWidgetTokenKeeper= requester; | |
| 2424 return true; | |
| 2425 } | |
| 2426 } | |
| 2427 return false; | |
| 2428 } | |
| 2429 | |
| 2430 /* | |
| 2431 * @see IWidgetTokenOwner#releaseWidgetToken(IWidgetTokenKeeper) | |
| 2432 * @since 2.0 | |
| 2433 */ | |
| 2434 public void releaseWidgetToken(IWidgetTokenKeeper tokenKeeper) { | |
| 2435 if (fWidgetTokenKeeper is tokenKeeper) | |
| 2436 fWidgetTokenKeeper= null; | |
| 2437 } | |
| 2438 | |
| 2439 | |
| 2440 //---- Selection | |
| 2441 | |
| 2442 /* | |
| 2443 * @see ITextViewer#getSelectedRange() | |
| 2444 */ | |
| 2445 public Point getSelectedRange() { | |
| 2446 | |
| 2447 if (!redraws() && fViewerState !is null) | |
| 2448 return fViewerState.getSelection(); | |
| 2449 | |
| 2450 if (fTextWidget !is null) { | |
| 2451 Point p= fTextWidget.getSelectionRange(); | |
| 2452 p= widgetSelection2ModelSelection(p); | |
| 2453 if (p !is null) | |
| 2454 return p; | |
| 2455 } | |
| 2456 | |
| 2457 return new Point(-1, -1); | |
| 2458 } | |
| 2459 | |
| 2460 /* | |
| 2461 * @see ITextViewer#setSelectedRange(int, int) | |
| 2462 */ | |
| 2463 public void setSelectedRange(int selectionOffset, int selectionLength) { | |
| 2464 | |
| 2465 if (!redraws()) { | |
| 2466 if (fViewerState !is null) | |
| 2467 fViewerState.updateSelection(selectionOffset, selectionLength); | |
| 2468 return; | |
| 2469 } | |
| 2470 | |
| 2471 if (fTextWidget is null) | |
| 2472 return; | |
| 2473 | |
| 2474 IRegion widgetSelection= modelRange2ClosestWidgetRange(new Region(selectionOffset, selectionLength)); | |
| 2475 if (widgetSelection !is null) { | |
| 2476 | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
2477 int[] selectionRange= [ widgetSelection.getOffset(), widgetSelection.getLength() ]; |
| 129 | 2478 validateSelectionRange(selectionRange); |
| 2479 if (selectionRange[0] >= 0) { | |
| 2480 fTextWidget.setSelectionRange(selectionRange[0], selectionRange[1]); | |
| 2481 selectionChanged(selectionRange[0], selectionRange[1]); | |
| 2482 } | |
| 2483 } | |
| 2484 } | |
| 2485 | |
| 2486 /** | |
| 2487 * Validates and adapts the given selection range if it is not a valid | |
| 2488 * widget selection. The widget selection is invalid if it starts or ends | |
| 2489 * inside a multi-character line delimiter. If so, the selection is adapted to | |
| 2490 * start <b>after</b> the divided line delimiter and to end <b>before</b> | |
| 2491 * the divided line delimiter. The parameter passed in is changed in-place | |
| 2492 * when being adapted. An adaptation to <code>[-1, -1]</code> indicates | |
| 2493 * that the selection range could not be validated. | |
| 2494 * Subclasses may reimplement this method. | |
| 2495 * | |
| 2496 * @param selectionRange selectionRange[0] is the offset, selectionRange[1] | |
| 2497 * the length of the selection to validate. | |
| 2498 * @since 2.0 | |
| 2499 */ | |
| 2500 protected void validateSelectionRange(int[] selectionRange) { | |
| 2501 | |
| 2502 IDocument document= getVisibleDocument(); | |
| 2503 if (document is null) { | |
| 2504 selectionRange[0]= -1; | |
| 2505 selectionRange[1]= -1; | |
| 2506 return; | |
| 2507 } | |
| 2508 | |
| 2509 int documentLength= document.getLength(); | |
| 2510 int offset= selectionRange[0]; | |
| 2511 int length= selectionRange[1]; | |
| 2512 | |
| 2513 if (length < 0) { | |
| 2514 length= - length; | |
| 2515 offset -= length; | |
| 2516 } | |
| 2517 | |
| 2518 if (offset <0) | |
| 2519 offset= 0; | |
| 2520 | |
| 2521 if (offset > documentLength) | |
| 2522 offset= documentLength; | |
| 2523 | |
| 2524 int delta= (offset + length) - documentLength; | |
| 2525 if (delta > 0) | |
| 2526 length -= delta; | |
| 2527 | |
| 2528 try { | |
| 2529 | |
| 2530 int lineNumber= document.getLineOfOffset(offset); | |
| 2531 IRegion lineInformation= document.getLineInformation(lineNumber); | |
| 2532 | |
| 2533 int lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2534 delta= offset - lineEnd; | |
| 2535 if (delta > 0) { | |
| 2536 // in the middle of a multi-character line delimiter | |
| 2537 offset= lineEnd; | |
| 2538 String delimiter= document.getLineDelimiter(lineNumber); | |
| 2539 if (delimiter !is null) | |
| 162 | 2540 offset += delimiter.length; |
| 129 | 2541 } |
| 2542 | |
| 2543 int end= offset + length; | |
| 2544 lineInformation= document.getLineInformationOfOffset(end); | |
| 2545 lineEnd= lineInformation.getOffset() + lineInformation.getLength(); | |
| 2546 delta= end - lineEnd; | |
| 2547 if (delta > 0) { | |
| 2548 // in the middle of a multi-character line delimiter | |
| 2549 length -= delta; | |
| 2550 } | |
| 2551 | |
| 2552 } catch (BadLocationException x) { | |
| 2553 selectionRange[0]= -1; | |
| 2554 selectionRange[1]= -1; | |
| 2555 return; | |
| 2556 } | |
| 2557 | |
| 2558 if (selectionRange[1] < 0) { | |
| 2559 selectionRange[0]= offset + length; | |
| 2560 selectionRange[1]= -length; | |
| 2561 } else { | |
| 2562 selectionRange[0]= offset; | |
| 2563 selectionRange[1]= length; | |
| 2564 } | |
| 2565 } | |
| 2566 | |
| 2567 /* | |
| 2568 * @see Viewer#setSelection(ISelection) | |
| 2569 */ | |
| 2570 public void setSelection(ISelection selection, bool reveal) { | |
| 138 | 2571 if ( cast(ITextSelection)selection ) { |
| 134 | 2572 ITextSelection s= cast(ITextSelection) selection; |
| 129 | 2573 setSelectedRange(s.getOffset(), s.getLength()); |
| 2574 if (reveal) | |
| 2575 revealRange(s.getOffset(), s.getLength()); | |
| 2576 } | |
| 2577 } | |
| 2578 | |
| 2579 /* | |
| 2580 * @see Viewer#getSelection() | |
| 2581 */ | |
| 2582 public ISelection getSelection() { | |
| 2583 Point p= getSelectedRange(); | |
| 2584 if (p.x is -1 || p.y is -1) | |
| 2585 return TextSelection.emptySelection(); | |
| 2586 | |
| 2587 return new TextSelection(getDocument(), p.x, p.y); | |
| 2588 } | |
| 2589 | |
| 2590 /* | |
| 2591 * @see ITextViewer#getSelectionProvider() | |
| 2592 */ | |
| 2593 public ISelectionProvider getSelectionProvider() { | |
| 2594 return this; | |
| 2595 } | |
| 2596 | |
| 2597 /* | |
| 2598 * @see dwtx.jface.text.IPostSelectionProvider#addPostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2599 * @since 3.0 | |
| 2600 */ | |
| 2601 public void addPostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2602 | |
| 162 | 2603 Assert.isNotNull(cast(Object)listener); |
| 129 | 2604 |
| 2605 if (fPostSelectionChangedListeners is null) | |
| 2606 fPostSelectionChangedListeners= new ArrayList(); | |
| 2607 | |
| 162 | 2608 if (!fPostSelectionChangedListeners.contains(cast(Object)listener)) |
| 2609 fPostSelectionChangedListeners.add(cast(Object)listener); | |
| 129 | 2610 } |
| 2611 | |
| 2612 /* | |
| 2613 * @see dwtx.jface.text.IPostSelectionProvider#removePostSelectionChangedListener(dwtx.jface.viewers.ISelectionChangedListener) | |
| 2614 * @since 3.0 | |
| 2615 */ | |
| 2616 public void removePostSelectionChangedListener(ISelectionChangedListener listener) { | |
| 2617 | |
| 162 | 2618 Assert.isNotNull(cast(Object)listener); |
| 129 | 2619 |
| 2620 if (fPostSelectionChangedListeners !is null) { | |
| 162 | 2621 fPostSelectionChangedListeners.remove(cast(Object)listener); |
| 129 | 2622 if (fPostSelectionChangedListeners.size() is 0) |
| 2623 fPostSelectionChangedListeners= null; | |
| 2624 } | |
| 2625 } | |
| 2626 | |
| 2627 /** | |
| 2628 * Get the text widget's display. | |
| 2629 * | |
| 2630 * @return the display or <code>null</code> if the display cannot be retrieved or if the display is disposed | |
| 2631 * @since 3.0 | |
| 2632 */ | |
| 2633 private Display getDisplay() { | |
| 2634 if (fTextWidget is null || fTextWidget.isDisposed()) | |
| 2635 return null; | |
| 2636 | |
| 2637 Display display= fTextWidget.getDisplay(); | |
| 2638 if (display !is null && display.isDisposed()) | |
| 2639 return null; | |
| 2640 | |
| 2641 return display; | |
| 2642 } | |
| 2643 | |
| 2644 /** | |
| 2645 * Starts a timer to send out a post selection changed event. | |
| 2646 * | |
| 2647 * @param fireEqualSelection <code>true</code> iff the event must be fired if the selection does not change | |
| 2648 * @since 3.0 | |
| 2649 */ | |
| 156 | 2650 private void queuePostSelectionChanged(bool fireEqualSelection) { |
| 129 | 2651 Display display= getDisplay(); |
| 2652 if (display is null) | |
| 2653 return; | |
| 2654 | |
| 2655 fNumberOfPostSelectionChangedEvents[0]++; | |
| 135 | 2656 display.timerExec(getEmptySelectionChangedEventDelay(), new class() Runnable { |
| 162 | 2657 const int id; |
| 2658 this(){ | |
| 2659 id = fNumberOfPostSelectionChangedEvents[0]; | |
| 2660 } | |
| 129 | 2661 public void run() { |
| 2662 if (id is fNumberOfPostSelectionChangedEvents[0]) { | |
| 2663 // Check again because this is executed after the delay | |
| 2664 if (getDisplay() !is null) { | |
| 2665 Point selection= fTextWidget.getSelectionRange(); | |
| 2666 if (selection !is null) { | |
| 2667 IRegion r= widgetRange2ModelRange(new Region(selection.x, selection.y)); | |
| 162 | 2668 if (fireEqualSelection || (r !is null && !(cast(Object)r).opEquals(cast(Object)fLastSentPostSelectionChange)) || r is null) { |
| 129 | 2669 fLastSentPostSelectionChange= r; |
| 2670 firePostSelectionChanged(selection.x, selection.y); | |
| 2671 } | |
| 2672 } | |
| 2673 } | |
| 2674 } | |
| 2675 } | |
| 2676 }); | |
| 2677 } | |
| 2678 | |
| 2679 /** | |
| 2680 * Sends out a text selection changed event to all registered post selection changed 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 * @since 3.0 | |
| 2685 */ | |
| 2686 protected void firePostSelectionChanged(int offset, int length) { | |
| 2687 if (redraws()) { | |
| 2688 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2689 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2690 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2691 firePostSelectionChanged(event); | |
| 2692 } | |
| 2693 } | |
| 2694 | |
| 2695 /** | |
| 2696 * Sends out a text selection changed event to all registered listeners and | |
| 2697 * registers the selection changed event to be sent out to all post selection | |
| 2698 * listeners. | |
| 2699 * | |
| 2700 * @param offset the offset of the newly selected range in the visible document | |
| 2701 * @param length the length of the newly selected range in the visible document | |
| 2702 */ | |
| 2703 protected void selectionChanged(int offset, int length) { | |
| 2704 queuePostSelectionChanged(true); | |
| 2705 fireSelectionChanged(offset, length); | |
| 2706 } | |
| 2707 | |
| 2708 /** | |
| 2709 * Sends out a text selection changed event to all registered listeners. | |
| 2710 * | |
| 2711 * @param offset the offset of the newly selected range in the visible document | |
| 2712 * @param length the length of the newly selected range in the visible document | |
| 2713 * @since 3.0 | |
| 2714 */ | |
| 2715 protected void fireSelectionChanged(int offset, int length) { | |
| 2716 if (redraws()) { | |
| 2717 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 162 | 2718 if ((r !is null && !(cast(Object)r).opEquals(cast(Object)fLastSentSelectionChange)) || r is null) { |
| 129 | 2719 fLastSentSelectionChange= r; |
| 2720 ISelection selection= r !is null ? new TextSelection(getDocument(), r.getOffset(), r.getLength()) : TextSelection.emptySelection(); | |
| 2721 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2722 fireSelectionChanged(event); | |
| 2723 } | |
| 2724 } | |
| 2725 } | |
| 2726 | |
| 2727 /** | |
| 2728 * Sends the given event to all registered post selection changed listeners. | |
| 2729 * | |
| 2730 * @param event the selection event | |
| 2731 * @since 3.0 | |
| 2732 */ | |
| 2733 private void firePostSelectionChanged(SelectionChangedEvent event) { | |
| 2734 List listeners= fPostSelectionChangedListeners; | |
| 2735 if (listeners !is null) { | |
| 2736 listeners= new ArrayList(listeners); | |
| 2737 for (int i= 0; i < listeners.size(); i++) { | |
| 134 | 2738 ISelectionChangedListener l= cast(ISelectionChangedListener) listeners.get(i); |
| 129 | 2739 l.selectionChanged(event); |
| 2740 } | |
| 2741 } | |
| 2742 } | |
| 2743 | |
| 2744 /** | |
| 2745 * Sends out a mark selection changed event to all registered listeners. | |
| 2746 * | |
| 2747 * @param offset the offset of the mark selection in the visible document, the offset is <code>-1</code> if the mark was cleared | |
| 2748 * @param length the length of the mark selection, may be negative if the caret is before the mark. | |
| 2749 * @since 2.0 | |
| 2750 */ | |
| 2751 protected void markChanged(int offset, int length) { | |
| 2752 if (redraws()) { | |
| 2753 | |
| 2754 if (offset !is -1) { | |
| 2755 IRegion r= widgetRange2ModelRange(new Region(offset, length)); | |
| 2756 offset= r.getOffset(); | |
| 2757 length= r.getLength(); | |
| 2758 } | |
| 2759 | |
| 2760 ISelection selection= new MarkSelection(getDocument(), offset, length); | |
| 2761 SelectionChangedEvent event= new SelectionChangedEvent(this, selection); | |
| 2762 fireSelectionChanged(event); | |
| 2763 } | |
| 2764 } | |
| 2765 | |
| 2766 | |
| 2767 //---- Text listeners | |
| 2768 | |
| 2769 /* | |
| 2770 * @see ITextViewer#addTextListener(ITextListener) | |
| 2771 */ | |
| 2772 public void addTextListener(ITextListener listener) { | |
| 2773 | |
| 162 | 2774 Assert.isNotNull(cast(Object)listener); |
| 129 | 2775 |
| 2776 if (fTextListeners is null) | |
| 2777 fTextListeners= new ArrayList(); | |
| 2778 | |
| 162 | 2779 if (!fTextListeners.contains(cast(Object)listener)) |
| 2780 fTextListeners.add(cast(Object)listener); | |
| 129 | 2781 } |
| 2782 | |
| 2783 /* | |
| 2784 * @see ITextViewer#removeTextListener(ITextListener) | |
| 2785 */ | |
| 2786 public void removeTextListener(ITextListener listener) { | |
| 2787 | |
| 162 | 2788 Assert.isNotNull(cast(Object)listener); |
| 129 | 2789 |
| 2790 if (fTextListeners !is null) { | |
| 162 | 2791 fTextListeners.remove(cast(Object)listener); |
| 129 | 2792 if (fTextListeners.size() is 0) |
| 2793 fTextListeners= null; | |
| 2794 } | |
| 2795 } | |
| 2796 | |
| 2797 /** | |
| 2798 * Informs all registered text listeners about the change specified by the | |
| 2799 * widget command. This method does not use a robust iterator. | |
| 2800 * | |
| 2801 * @param cmd the widget command translated into a text event sent to all text listeners | |
| 2802 */ | |
| 2803 protected void updateTextListeners(WidgetCommand cmd) { | |
| 2804 List textListeners= fTextListeners; | |
| 2805 if (textListeners !is null) { | |
| 2806 textListeners= new ArrayList(textListeners); | |
| 2807 DocumentEvent event= cmd.event; | |
| 138 | 2808 if ( cast(SlaveDocumentEvent)event ) |
| 134 | 2809 event= (cast(SlaveDocumentEvent) event).getMasterEvent(); |
| 129 | 2810 |
| 2811 TextEvent e= new TextEvent(cmd.start, cmd.length, cmd.text, cmd.preservedText, event, redraws()); | |
| 2812 for (int i= 0; i < textListeners.size(); i++) { | |
| 134 | 2813 ITextListener l= cast(ITextListener) textListeners.get(i); |
| 129 | 2814 l.textChanged(e); |
| 2815 } | |
| 2816 } | |
| 2817 } | |
| 2818 | |
| 2819 //---- Text input listeners | |
| 2820 | |
| 2821 /* | |
| 2822 * @see ITextViewer#addTextInputListener(ITextInputListener) | |
| 2823 */ | |
| 2824 public void addTextInputListener(ITextInputListener listener) { | |
| 2825 | |
| 162 | 2826 Assert.isNotNull(cast(Object)listener); |
| 129 | 2827 |
| 2828 if (fTextInputListeners is null) | |
| 2829 fTextInputListeners= new ArrayList(); | |
| 2830 | |
| 162 | 2831 if (!fTextInputListeners.contains(cast(Object)listener)) |
| 2832 fTextInputListeners.add(cast(Object)listener); | |
| 129 | 2833 } |
| 2834 | |
| 2835 /* | |
| 2836 * @see ITextViewer#removeTextInputListener(ITextInputListener) | |
| 2837 */ | |
| 2838 public void removeTextInputListener(ITextInputListener listener) { | |
| 2839 | |
| 162 | 2840 Assert.isNotNull(cast(Object)listener); |
| 129 | 2841 |
| 2842 if (fTextInputListeners !is null) { | |
| 162 | 2843 fTextInputListeners.remove(cast(Object)listener); |
| 129 | 2844 if (fTextInputListeners.size() is 0) |
| 2845 fTextInputListeners= null; | |
| 2846 } | |
| 2847 } | |
| 2848 | |
| 2849 /** | |
| 2850 * Informs all registered text input listeners about the forthcoming input change, | |
| 2851 * This method does not use a robust iterator. | |
| 2852 * | |
| 2853 * @param oldInput the old input document | |
| 2854 * @param newInput the new input document | |
| 2855 */ | |
| 2856 protected void fireInputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) { | |
| 2857 List listener= fTextInputListeners; | |
| 2858 if (listener !is null) { | |
| 2859 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2860 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2861 l.inputDocumentAboutToBeChanged(oldInput, newInput); |
| 2862 } | |
| 2863 } | |
| 2864 } | |
| 2865 | |
| 2866 /** | |
| 2867 * Informs all registered text input listeners about the successful input change, | |
| 2868 * This method does not use a robust iterator. | |
| 2869 * | |
| 2870 * @param oldInput the old input document | |
| 2871 * @param newInput the new input document | |
| 2872 */ | |
| 2873 protected void fireInputDocumentChanged(IDocument oldInput, IDocument newInput) { | |
| 2874 List listener= fTextInputListeners; | |
| 2875 if (listener !is null) { | |
| 2876 for (int i= 0; i < listener.size(); i++) { | |
| 134 | 2877 ITextInputListener l= cast(ITextInputListener) listener.get(i); |
| 129 | 2878 l.inputDocumentChanged(oldInput, newInput); |
| 2879 } | |
| 2880 } | |
| 2881 } | |
| 2882 | |
| 2883 //---- Document | |
| 2884 | |
| 2885 /* | |
| 2886 * @see Viewer#getInput() | |
| 2887 */ | |
| 2888 public Object getInput() { | |
| 162 | 2889 return cast(Object)getDocument(); |
| 129 | 2890 } |
| 2891 | |
| 2892 /* | |
| 2893 * @see ITextViewer#getDocument() | |
| 2894 */ | |
| 2895 public IDocument getDocument() { | |
| 2896 return fDocument; | |
| 2897 } | |
| 2898 | |
| 2899 /* | |
| 2900 * @see Viewer#setInput(Object) | |
| 2901 */ | |
| 2902 public void setInput(Object input) { | |
| 2903 | |
| 2904 IDocument document= null; | |
| 138 | 2905 if ( cast(IDocument)input ) |
| 134 | 2906 document= cast(IDocument) input; |
| 129 | 2907 |
| 2908 setDocument(document); | |
| 2909 } | |
| 2910 | |
| 2911 /* | |
| 2912 * @see ITextViewer#setDocument(IDocument) | |
| 2913 */ | |
| 2914 public void setDocument(IDocument document) { | |
| 2915 | |
| 2916 fReplaceTextPresentation= true; | |
| 2917 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2918 | |
| 2919 IDocument oldDocument= fDocument; | |
| 2920 fDocument= document; | |
| 2921 | |
| 2922 setVisibleDocument(fDocument); | |
| 2923 | |
| 2924 resetPlugins(); | |
| 162 | 2925 inputChanged(cast(Object)fDocument, cast(Object)oldDocument); |
| 129 | 2926 |
| 2927 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2928 fLastSentSelectionChange= null; | |
| 2929 fReplaceTextPresentation= false; | |
| 2930 } | |
| 2931 | |
| 2932 /* | |
| 2933 * @see ITextViewer#setDocument(IDocument, int, int) | |
| 2934 */ | |
| 2935 public void setDocument(IDocument document, int modelRangeOffset, int modelRangeLength) { | |
| 2936 | |
| 2937 fReplaceTextPresentation= true; | |
| 2938 fireInputDocumentAboutToBeChanged(fDocument, document); | |
| 2939 | |
| 2940 IDocument oldDocument= fDocument; | |
| 2941 fDocument= document; | |
| 2942 | |
| 2943 try { | |
| 2944 | |
| 2945 IDocument slaveDocument= createSlaveDocument(document); | |
| 2946 updateSlaveDocument(slaveDocument, modelRangeOffset, modelRangeLength); | |
| 2947 setVisibleDocument(slaveDocument); | |
| 2948 | |
| 2949 } catch (BadLocationException x) { | |
| 2950 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_1")); //$NON-NLS-1$ | |
| 2951 } | |
| 2952 | |
| 2953 resetPlugins(); | |
| 162 | 2954 inputChanged(cast(Object)fDocument, cast(Object)oldDocument); |
| 129 | 2955 |
| 2956 fireInputDocumentChanged(oldDocument, fDocument); | |
| 2957 fLastSentSelectionChange= null; | |
| 2958 fReplaceTextPresentation= false; | |
| 2959 } | |
| 2960 | |
| 2961 /** | |
| 2962 * Creates a slave document for the given document if there is a slave document manager | |
| 2963 * associated with this viewer. | |
| 2964 * | |
| 2965 * @param document the master document | |
| 2966 * @return the newly created slave document | |
| 2967 * @since 2.1 | |
| 2968 */ | |
| 2969 protected IDocument createSlaveDocument(IDocument document) { | |
| 2970 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 2971 if (manager !is null) { | |
| 2972 if (manager.isSlaveDocument(document)) | |
| 2973 return document; | |
| 2974 return manager.createSlaveDocument(document); | |
| 2975 } | |
| 2976 return document; | |
| 2977 } | |
| 2978 | |
| 2979 /** | |
| 2980 * Sets the given slave document to the specified range of its master document. | |
| 2981 * | |
| 2982 * @param visibleDocument the slave document | |
| 2983 * @param visibleRegionOffset the offset of the master document range | |
| 2984 * @param visibleRegionLength the length of the master document range | |
| 2985 * @return <code>true</code> if the slave has been adapted successfully | |
| 2986 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 2987 * @since 2.1 | |
| 2988 * @deprecated use <code>updateSlaveDocument</code> instead | |
| 2989 */ | |
|
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2990 protected bool updateVisibleDocument(IDocument visibleDocument, int visibleRegionOffset, int visibleRegionLength) { |
| 138 | 2991 if ( cast(ChildDocument)visibleDocument ) { |
| 134 | 2992 ChildDocument childDocument= cast(ChildDocument) visibleDocument; |
| 129 | 2993 |
| 2994 IDocument document= childDocument.getParentDocument(); | |
| 2995 int line= document.getLineOfOffset(visibleRegionOffset); | |
| 2996 int offset= document.getLineOffset(line); | |
| 2997 int length= (visibleRegionOffset - offset) + visibleRegionLength; | |
| 2998 | |
| 2999 Position parentRange= childDocument.getParentDocumentRange(); | |
| 3000 if (offset !is parentRange.getOffset() || length !is parentRange.getLength()) { | |
| 3001 childDocument.setParentDocumentRange(offset, length); | |
| 3002 return true; | |
| 3003 } | |
| 3004 } | |
| 3005 return false; | |
| 3006 } | |
| 3007 | |
| 3008 /** | |
| 3009 * Updates the given slave document to show the specified range of its master document. | |
| 3010 * | |
| 3011 * @param slaveDocument the slave document | |
| 3012 * @param modelRangeOffset the offset of the master document range | |
| 3013 * @param modelRangeLength the length of the master document range | |
| 3014 * @return <code>true</code> if the slave has been adapted successfully | |
| 3015 * @throws BadLocationException in case the specified range is not valid in the master document | |
| 3016 * @since 3.0 | |
| 3017 */ | |
|
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3018 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) { |
| 129 | 3019 return updateVisibleDocument(slaveDocument, modelRangeOffset, modelRangeLength); |
| 3020 } | |
| 3021 | |
| 3022 | |
| 3023 | |
| 3024 //---- View ports | |
| 3025 | |
| 3026 /** | |
| 3027 * Initializes all listeners and structures required to set up view port listeners. | |
| 3028 */ | |
| 3029 private void initializeViewportUpdate() { | |
| 3030 | |
| 3031 if (fViewportGuard !is null) | |
| 3032 return; | |
| 3033 | |
| 3034 if (fTextWidget !is null) { | |
| 3035 | |
| 3036 fViewportGuard= new ViewportGuard(); | |
| 3037 fLastTopPixel= -1; | |
| 3038 | |
| 3039 fTextWidget.addKeyListener(fViewportGuard); | |
| 3040 fTextWidget.addMouseListener(fViewportGuard); | |
| 3041 | |
| 3042 fScroller= fTextWidget.getVerticalBar(); | |
| 3043 if (fScroller !is null) | |
| 3044 fScroller.addSelectionListener(fViewportGuard); | |
| 3045 } | |
| 3046 } | |
| 3047 | |
| 3048 /** | |
| 3049 * Removes all listeners and structures required to set up view port listeners. | |
| 3050 */ | |
| 3051 private void removeViewPortUpdate() { | |
| 3052 | |
| 3053 if (fTextWidget !is null) { | |
| 3054 | |
| 3055 fTextWidget.removeKeyListener(fViewportGuard); | |
| 3056 fTextWidget.removeMouseListener(fViewportGuard); | |
| 3057 | |
| 3058 if (fScroller !is null && !fScroller.isDisposed()) { | |
| 3059 fScroller.removeSelectionListener(fViewportGuard); | |
| 3060 fScroller= null; | |
| 3061 } | |
| 3062 | |
| 3063 fViewportGuard= null; | |
| 3064 } | |
| 3065 } | |
| 3066 | |
| 3067 /* | |
| 3068 * @see ITextViewer#addViewportListener(IViewportListener) | |
| 3069 */ | |
| 3070 public void addViewportListener(IViewportListener listener) { | |
| 3071 | |
| 3072 if (fViewportListeners is null) { | |
| 3073 fViewportListeners= new ArrayList(); | |
| 3074 initializeViewportUpdate(); | |
| 3075 } | |
| 3076 | |
| 162 | 3077 if (!fViewportListeners.contains(cast(Object)listener)) |
| 3078 fViewportListeners.add(cast(Object)listener); | |
| 129 | 3079 } |
| 3080 | |
| 3081 /* | |
| 3082 * @see ITextViewer#removeViewportListener(IVewportListener) | |
| 3083 */ | |
| 3084 public void removeViewportListener(IViewportListener listener) { | |
| 3085 if (fViewportListeners !is null) | |
| 162 | 3086 fViewportListeners.remove(cast(Object)listener); |
| 129 | 3087 } |
| 3088 | |
| 3089 /** | |
| 3090 * Checks whether the view port changed and if so informs all registered | |
| 3091 * listeners about the change. | |
| 3092 * | |
| 3093 * @param origin describes under which circumstances this method has been called. | |
| 3094 * | |
| 3095 * @see IViewportListener | |
| 3096 */ | |
| 3097 protected void updateViewportListeners(int origin) { | |
| 3098 | |
| 3099 if (redraws()) { | |
| 3100 int topPixel= fTextWidget.getTopPixel(); | |
| 3101 if (topPixel >= 0 && topPixel !is fLastTopPixel) { | |
| 3102 if (fViewportListeners !is null) { | |
| 3103 for (int i= 0; i < fViewportListeners.size(); i++) { | |
| 134 | 3104 IViewportListener l= cast(IViewportListener) fViewportListeners.get(i); |
| 129 | 3105 l.viewportChanged(topPixel); |
| 3106 } | |
| 3107 } | |
| 3108 fLastTopPixel= topPixel; | |
| 3109 } | |
| 3110 } | |
| 3111 } | |
| 3112 | |
| 3113 //---- scrolling and revealing | |
| 3114 | |
| 3115 /* | |
| 3116 * @see ITextViewer#getTopIndex() | |
| 3117 */ | |
| 3118 public int getTopIndex() { | |
| 3119 | |
| 3120 if (fTextWidget !is null) { | |
| 3121 int top= fTextWidget.getTopIndex(); | |
| 3122 return widgetLine2ModelLine(top); | |
| 3123 } | |
| 3124 | |
| 3125 return -1; | |
| 3126 } | |
| 3127 | |
| 3128 /* | |
| 3129 * @see ITextViewer#setTopIndex(int) | |
| 3130 */ | |
| 3131 public void setTopIndex(int index) { | |
| 3132 | |
| 3133 if (fTextWidget !is null) { | |
| 3134 | |
| 3135 int widgetLine= modelLine2WidgetLine(index); | |
| 3136 if (widgetLine is -1) | |
| 3137 widgetLine= getClosestWidgetLineForModelLine(index); | |
| 3138 | |
| 3139 if (widgetLine > -1) { | |
| 3140 fTextWidget.setTopIndex(widgetLine); | |
| 3141 updateViewportListeners(INTERNAL); | |
| 3142 } | |
| 3143 } | |
| 3144 } | |
| 3145 | |
| 3146 /** | |
| 3147 * Returns the number of lines that can fully fit into the viewport. This is computed by | |
| 3148 * dividing the widget's client area height by the widget's line height. The result is only | |
| 3149 * accurate if the widget does not use variable line heights - for that reason, clients should | |
| 3150 * not use this method any longer and use the client area height of the text widget to find out | |
| 3151 * how much content fits into it. | |
|
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|
3152 * |
| 129 | 3153 * @return the view port height in lines |
| 3154 * @deprecated as of 3.2 | |
| 3155 */ | |
| 3156 protected int getVisibleLinesInViewport() { | |
| 3157 if (fTextWidget !is null) { | |
| 3158 Rectangle clArea= fTextWidget.getClientArea(); | |
| 3159 if (!clArea.isEmpty()) | |
| 3160 return clArea.height / fTextWidget.getLineHeight(); | |
| 3161 } | |
| 3162 return -1; | |
| 3163 } | |
| 3164 | |
| 3165 /* | |
| 3166 * @see ITextViewer#getBottomIndex() | |
| 3167 */ | |
| 3168 public int getBottomIndex() { | |
| 3169 | |
| 3170 if (fTextWidget is null) | |
| 3171 return -1; | |
|
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|
3172 |
| 129 | 3173 int widgetBottom= JFaceTextUtil.getBottomIndex(fTextWidget); |
| 3174 return widgetLine2ModelLine(widgetBottom); | |
| 3175 } | |
| 3176 | |
| 3177 /* | |
| 3178 * @see ITextViewer#getTopIndexStartOffset() | |
| 3179 */ | |
| 3180 public int getTopIndexStartOffset() { | |
| 3181 | |
| 3182 if (fTextWidget !is null) { | |
| 3183 int top= fTextWidget.getTopIndex(); | |
| 3184 try { | |
| 3185 top= getVisibleDocument().getLineOffset(top); | |
| 3186 return widgetOffset2ModelOffset(top); | |
| 3187 } catch (BadLocationException ex) { | |
|
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3188 if (TRACE_ERRORS) |
|
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|
3189 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getTopIndexStartOffset")); //$NON-NLS-1$ |
| 129 | 3190 } |
| 3191 } | |
| 3192 | |
| 3193 return -1; | |
| 3194 } | |
| 3195 | |
| 3196 /* | |
| 3197 * @see ITextViewer#getBottomIndexEndOffset() | |
| 3198 */ | |
| 3199 public int getBottomIndexEndOffset() { | |
| 3200 try { | |
| 3201 | |
| 3202 IRegion line= getDocument().getLineInformation(getBottomIndex()); | |
| 3203 int bottomEndOffset= line.getOffset() + line.getLength() - 1; | |
| 3204 | |
| 3205 IRegion coverage= getModelCoverage(); | |
| 3206 if (coverage is null) | |
| 3207 return -1; | |
| 3208 | |
| 3209 int coverageEndOffset= coverage.getOffset() + coverage.getLength() - 1; | |
| 3210 return Math.min(coverageEndOffset, bottomEndOffset); | |
| 3211 | |
| 3212 } catch (BadLocationException ex) { | |
|
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3213 if (TRACE_ERRORS) |
|
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|
3214 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getBottomIndexEndOffset")); //$NON-NLS-1$ |
| 129 | 3215 return getDocument().getLength() - 1; |
| 3216 } | |
| 3217 } | |
| 3218 | |
| 3219 /* | |
| 3220 * @see ITextViewer#revealRange(int, int) | |
| 3221 */ | |
| 3222 public void revealRange(int start, int length) { | |
| 3223 | |
| 3224 if (fTextWidget is null || !redraws()) | |
| 3225 return; | |
| 3226 | |
| 3227 IRegion modelRange= new Region(start, length); | |
| 3228 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange); | |
| 3229 if (widgetRange !is null) { | |
| 3230 | |
|
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|
3231 int[] range= [ widgetRange.getOffset(), widgetRange.getLength() ]; |
| 129 | 3232 validateSelectionRange(range); |
| 3233 if (range[0] >= 0) | |
| 3234 internalRevealRange(range[0], range[0] + range[1]); | |
| 3235 | |
| 3236 } else { | |
| 3237 | |
| 3238 IRegion coverage= getModelCoverage(); | |
| 3239 int cursor= (coverage is null || start < coverage.getOffset()) ? 0 : getVisibleDocument().getLength(); | |
| 3240 internalRevealRange(cursor, cursor); | |
| 3241 } | |
| 3242 } | |
| 3243 | |
| 3244 /** | |
| 3245 * Reveals the given range of the visible document. | |
| 3246 * | |
| 3247 * @param start the start offset of the range | |
| 3248 * @param end the end offset of the range | |
| 3249 */ | |
| 3250 protected void internalRevealRange(int start, int end) { | |
| 3251 | |
| 3252 try { | |
| 3253 | |
| 3254 IDocument doc= getVisibleDocument(); | |
| 3255 | |
| 3256 int startLine= doc.getLineOfOffset(start); | |
| 3257 int endLine= doc.getLineOfOffset(end); | |
| 3258 | |
| 3259 int top= fTextWidget.getTopIndex(); | |
| 3260 if (top > -1) { | |
| 3261 | |
| 3262 // scroll vertically | |
| 3263 int bottom= JFaceTextUtil.getBottomIndex(fTextWidget); | |
| 3264 int lines= bottom - top; | |
|
140
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3265 |
| 129 | 3266 // if the widget is not scrollable as it is displaying the entire content |
| 3267 // setTopIndex won't have any effect. | |
| 3268 | |
| 3269 if (startLine >= top && startLine <= bottom && endLine >= top && endLine <= bottom ) { | |
| 3270 | |
| 3271 // do not scroll at all as it is already visible | |
| 3272 | |
| 3273 } else { | |
| 3274 | |
| 3275 int delta= Math.max(0, lines - (endLine - startLine)); | |
| 3276 fTextWidget.setTopIndex(startLine - delta/3); | |
| 3277 updateViewportListeners(INTERNAL); | |
| 3278 } | |
| 3279 | |
| 3280 // scroll horizontally | |
| 3281 | |
| 3282 if (endLine < startLine) { | |
| 3283 endLine += startLine; | |
| 3284 startLine= endLine - startLine; | |
| 3285 endLine -= startLine; | |
| 3286 } | |
| 3287 | |
| 3288 int startPixel= -1; | |
| 3289 int endPixel= -1; | |
| 3290 | |
| 3291 if (endLine > startLine) { | |
| 3292 // reveal the beginning of the range in the start line | |
| 3293 IRegion extent= getExtent(start, start); | |
| 3294 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3295 endPixel= startPixel; | |
| 3296 | |
| 3297 } else { | |
| 3298 IRegion extent= getExtent(start, end); | |
| 3299 startPixel= extent.getOffset() + fTextWidget.getHorizontalPixel(); | |
| 3300 endPixel= startPixel + extent.getLength(); | |
| 3301 } | |
| 3302 | |
| 3303 int visibleStart= fTextWidget.getHorizontalPixel(); | |
| 3304 int visibleEnd= visibleStart + fTextWidget.getClientArea().width; | |
| 3305 | |
| 3306 // scroll only if not yet visible | |
| 3307 if (startPixel < visibleStart || visibleEnd < endPixel) { | |
| 3308 | |
| 3309 // set buffer zone to 10 pixels | |
| 3310 int bufferZone= 10; | |
| 3311 | |
| 3312 int newOffset= visibleStart; | |
| 3313 | |
| 3314 int visibleWidth= visibleEnd - visibleStart; | |
| 3315 int selectionPixelWidth= endPixel - startPixel; | |
| 3316 | |
| 3317 if (startPixel < visibleStart) | |
| 3318 newOffset= startPixel; | |
| 3319 else if (selectionPixelWidth + bufferZone < visibleWidth) | |
| 3320 newOffset= endPixel + bufferZone - visibleWidth; | |
| 3321 else | |
| 3322 newOffset= startPixel; | |
| 3323 | |
| 134 | 3324 float index= (cast(float)newOffset) / (cast(float)getAverageCharWidth()); |
| 129 | 3325 |
| 162 | 3326 fTextWidget.setHorizontalIndex(cast(int)Math.round(index)); |
| 129 | 3327 } |
| 3328 | |
| 3329 } | |
| 3330 } catch (BadLocationException e) { | |
| 3331 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_range")); //$NON-NLS-1$ | |
| 3332 } | |
| 3333 } | |
| 3334 | |
| 3335 /** | |
| 3336 * Returns the width of the text when being drawn into this viewer's widget. | |
| 3337 * | |
| 3338 * @param text the string to measure | |
| 3339 * @return the width of the presentation of the given string | |
| 3340 * @deprecated use <code>getWidthInPixels(int, int)</code> instead | |
| 3341 */ | |
| 3342 final protected int getWidthInPixels(String text) { | |
| 3343 GC gc= new GC(fTextWidget); | |
| 3344 gc.setFont(fTextWidget.getFont()); | |
| 3345 Point extent= gc.textExtent(text); | |
| 3346 gc.dispose(); | |
| 3347 return extent.x; | |
| 3348 } | |
| 3349 | |
| 3350 /** | |
| 3351 * Returns the region covered by the given start and end offset. | |
| 3352 * The result is relative to the upper left corner of the widget | |
| 3353 * client area. | |
| 3354 * | |
| 3355 * @param start offset relative to the start of this viewer's view port | |
| 3356 * 0 <= offset <= getCharCount() | |
| 3357 * @param end offset relative to the start of this viewer's view port | |
| 3358 * 0 <= offset <= getCharCount() | |
| 3359 * @return the region covered by start and end offset | |
| 3360 */ | |
| 3361 final protected IRegion getExtent(int start, int end) { | |
| 3362 if (end > 0 && start < end) { | |
| 3363 Rectangle bounds= fTextWidget.getTextBounds(start, end - 1); | |
| 3364 return new Region(bounds.x, bounds.width); | |
| 3365 } | |
|
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3366 |
| 129 | 3367 return new Region(fTextWidget.getLocationAtOffset(start).x, 0); |
| 3368 } | |
| 3369 | |
| 3370 /** | |
| 3371 * Returns the width of the representation of a text range in the | |
| 3372 * visible region of the viewer's document as drawn in this viewer's | |
| 3373 * widget. | |
| 3374 * | |
| 3375 * @param offset the offset of the text range in the visible region | |
| 3376 * @param length the length of the text range in the visible region | |
| 3377 * @return the width of the presentation of the specified text range | |
| 3378 * @since 2.0 | |
| 3379 */ | |
| 3380 final protected int getWidthInPixels(int offset, int length) { | |
| 3381 return getExtent(offset, offset + length).getLength(); | |
| 3382 } | |
| 3383 | |
| 3384 /** | |
| 3385 * Returns the average character width of this viewer's widget. | |
| 3386 * | |
| 3387 * @return the average character width of this viewer's widget | |
| 3388 */ | |
| 3389 final protected int getAverageCharWidth() { | |
| 3390 return JFaceTextUtil.getAverageCharWidth(getTextWidget()); | |
| 3391 } | |
| 3392 | |
| 3393 /* | |
| 3394 * @see Viewer#refresh() | |
| 3395 */ | |
| 3396 public void refresh() { | |
| 3397 setDocument(getDocument()); | |
| 3398 } | |
| 3399 | |
| 3400 //---- visible range support | |
| 3401 | |
| 3402 /** | |
| 3403 * Returns the slave document manager | |
| 3404 * | |
| 3405 * @return the slave document manager | |
| 3406 * @since 2.1 | |
| 3407 */ | |
| 3408 protected ISlaveDocumentManager getSlaveDocumentManager() { | |
| 3409 if (fSlaveDocumentManager is null) | |
| 3410 fSlaveDocumentManager= createSlaveDocumentManager(); | |
| 3411 return fSlaveDocumentManager; | |
| 3412 } | |
| 3413 | |
| 3414 /** | |
| 3415 * Creates a new slave document manager. This implementation always | |
| 3416 * returns a <code>ChildDocumentManager</code>. | |
| 3417 * | |
| 3418 * @return ISlaveDocumentManager | |
| 3419 * @since 2.1 | |
| 3420 */ | |
| 3421 protected ISlaveDocumentManager createSlaveDocumentManager() { | |
| 3422 return new ChildDocumentManager(); | |
| 3423 } | |
| 3424 | |
| 3425 /* | |
| 3426 * @see dwtx.jface.text.ITextViewer#invalidateTextPresentation() | |
| 3427 */ | |
| 3428 public final void invalidateTextPresentation() { | |
| 3429 if (fVisibleDocument !is null) { | |
| 3430 fWidgetCommand.event= null; | |
| 3431 fWidgetCommand.start= 0; | |
| 3432 fWidgetCommand.length= fVisibleDocument.getLength(); | |
| 3433 fWidgetCommand.text= fVisibleDocument.get(); | |
| 3434 updateTextListeners(fWidgetCommand); | |
| 3435 } | |
| 3436 } | |
| 3437 | |
| 3438 /** | |
| 3439 * Invalidates the given range of the text presentation. | |
| 3440 * | |
| 3441 * @param offset the offset of the range to be invalidated | |
| 3442 * @param length the length of the range to be invalidated | |
| 3443 * @since 2.1 | |
| 3444 */ | |
| 3445 public final void invalidateTextPresentation(int offset, int length) { | |
| 3446 if (fVisibleDocument !is null) { | |
| 3447 | |
| 3448 IRegion widgetRange= modelRange2WidgetRange(new Region(offset, length)); | |
| 3449 if (widgetRange !is null) { | |
| 3450 | |
| 3451 fWidgetCommand.event= null; | |
| 3452 fWidgetCommand.start= widgetRange.getOffset(); | |
| 3453 fWidgetCommand.length= widgetRange.getLength(); | |
| 3454 | |
| 3455 try { | |
| 3456 fWidgetCommand.text= fVisibleDocument.get(widgetRange.getOffset(), widgetRange.getLength()); | |
| 3457 updateTextListeners(fWidgetCommand); | |
| 3458 } catch (BadLocationException x) { | |
| 3459 // can not happen because of previous checking | |
| 3460 } | |
| 3461 } | |
| 3462 } | |
| 3463 } | |
| 3464 | |
| 3465 /** | |
| 3466 * Initializes the text widget with the visual document and | |
| 3467 * invalidates the overall presentation. | |
| 3468 */ | |
| 3469 private void initializeWidgetContents() { | |
| 3470 | |
| 3471 if (fTextWidget !is null && fVisibleDocument !is null) { | |
| 3472 | |
| 3473 // set widget content | |
| 3474 if (fDocumentAdapter is null) | |
| 3475 fDocumentAdapter= createDocumentAdapter(); | |
| 3476 | |
| 3477 fDocumentAdapter.setDocument(fVisibleDocument); | |
| 3478 fTextWidget.setContent(fDocumentAdapter); | |
| 3479 | |
| 3480 // invalidate presentation | |
| 3481 invalidateTextPresentation(); | |
| 3482 } | |
| 3483 } | |
| 3484 | |
| 3485 /** | |
| 3486 * Frees the given document if it is a slave document. | |
| 3487 * | |
| 3488 * @param slave the potential slave document | |
| 3489 * @since 3.0 | |
| 3490 */ | |
| 3491 protected void freeSlaveDocument(IDocument slave) { | |
| 3492 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3493 if (manager !is null && manager.isSlaveDocument(slave)) | |
| 3494 manager.freeSlaveDocument(slave); | |
| 3495 } | |
| 3496 | |
| 3497 /** | |
| 3498 * Sets this viewer's visible document. The visible document represents the | |
| 3499 * visible region of the viewer's input document. | |
| 3500 * | |
| 3501 * @param document the visible document | |
| 3502 */ | |
| 3503 protected void setVisibleDocument(IDocument document) { | |
| 3504 | |
|
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3505 if (fVisibleDocument is document && cast(ChildDocument)fVisibleDocument ) { |
| 129 | 3506 // optimization for new child documents |
| 3507 return; | |
| 3508 } | |
| 3509 | |
| 3510 if (fVisibleDocument !is null) { | |
| 3511 if (fVisibleDocumentListener !is null) | |
| 3512 fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); | |
| 3513 if (fVisibleDocument !is document) | |
| 3514 freeSlaveDocument(fVisibleDocument); | |
| 3515 } | |
| 3516 | |
| 3517 fVisibleDocument= document; | |
| 3518 initializeDocumentInformationMapping(fVisibleDocument); | |
| 3519 | |
| 3520 initializeWidgetContents(); | |
| 3521 | |
| 3522 fFindReplaceDocumentAdapter= null; | |
| 3523 if (fVisibleDocument !is null && fVisibleDocumentListener !is null) | |
| 3524 fVisibleDocument.addDocumentListener(fVisibleDocumentListener); | |
| 3525 } | |
| 3526 | |
| 3527 /** | |
| 3528 * Hook method called when the visible document is about to be changed. | |
| 3529 * <p> | |
| 3530 * Subclasses may override. | |
| 3531 * | |
| 3532 * @param event the document event | |
| 3533 * @since 3.0 | |
| 3534 */ | |
| 3535 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { | |
| 3536 } | |
| 3537 | |
| 3538 /** | |
| 3539 * Hook method called when the visible document has been changed. | |
| 3540 * <p> | |
| 3541 * Subclasses may override. | |
| 3542 * | |
| 3543 * @param event the document event | |
| 3544 * @since 3.0 | |
| 3545 */ | |
| 3546 protected void handleVisibleDocumentChanged(DocumentEvent event) { | |
| 3547 } | |
| 3548 | |
| 3549 /** | |
| 3550 * Initializes the document information mapping between the given slave document and | |
| 3551 * its master document. | |
| 3552 * | |
| 3553 * @param visibleDocument the slave document | |
| 3554 * @since 2.1 | |
| 3555 */ | |
| 3556 protected void initializeDocumentInformationMapping(IDocument visibleDocument) { | |
| 3557 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3558 fInformationMapping= manager is null ? null : manager.createMasterSlaveMapping(visibleDocument); | |
| 3559 } | |
| 3560 | |
| 3561 /** | |
| 3562 * Returns the viewer's visible document. | |
| 3563 * | |
| 3564 * @return the viewer's visible document | |
| 3565 */ | |
| 3566 protected IDocument getVisibleDocument() { | |
| 3567 return fVisibleDocument; | |
| 3568 } | |
| 3569 | |
| 3570 /** | |
| 3571 * Returns the offset of the visible region. | |
| 3572 * | |
| 3573 * @return the offset of the visible region | |
| 3574 */ | |
| 3575 protected int _getVisibleRegionOffset() { | |
| 3576 | |
| 3577 IDocument document= getVisibleDocument(); | |
| 138 | 3578 if ( cast(ChildDocument)document ) { |
| 134 | 3579 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3580 return cdoc.getParentDocumentRange().getOffset(); |
| 3581 } | |
| 3582 | |
| 3583 return 0; | |
| 3584 } | |
| 162 | 3585 package int _getVisibleRegionOffset_package() { |
| 3586 return _getVisibleRegionOffset(); | |
| 3587 } | |
| 129 | 3588 |
| 3589 /* | |
| 3590 * @see ITextViewer#getVisibleRegion() | |
| 3591 */ | |
| 3592 public IRegion getVisibleRegion() { | |
| 3593 | |
| 3594 IDocument document= getVisibleDocument(); | |
| 138 | 3595 if ( cast(ChildDocument)document ) { |
| 134 | 3596 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 3597 return new Region(p.getOffset(), p.getLength()); |
| 3598 } | |
| 3599 | |
| 3600 return new Region(0, document is null ? 0 : document.getLength()); | |
| 3601 } | |
| 3602 | |
| 3603 /* | |
| 3604 * @see ITextViewer#overlapsWithVisibleRegion(int, int) | |
| 3605 */ | |
| 3606 public bool overlapsWithVisibleRegion(int start, int length) { | |
| 3607 IDocument document= getVisibleDocument(); | |
| 138 | 3608 if ( cast(ChildDocument)document ) { |
| 134 | 3609 ChildDocument cdoc= cast(ChildDocument) document; |
| 129 | 3610 return cdoc.getParentDocumentRange().overlapsWith(start, length); |
| 3611 } else if (document !is null) { | |
| 3612 int size= document.getLength(); | |
| 3613 return (start >= 0 && length >= 0 && start + length <= size); | |
| 3614 } | |
| 3615 return false; | |
| 3616 } | |
| 3617 | |
| 3618 /* | |
| 3619 * @see ITextViewer#setVisibleRegion(int, int) | |
| 3620 */ | |
| 3621 public void setVisibleRegion(int start, int length) { | |
| 3622 | |
| 3623 IRegion region= getVisibleRegion(); | |
| 3624 if (start is region.getOffset() && length is region.getLength()) { | |
| 3625 // nothing to change | |
| 3626 return; | |
| 3627 } | |
| 3628 | |
| 3629 setRedraw(false); | |
| 3630 try { | |
| 3631 | |
| 3632 IDocument slaveDocument= createSlaveDocument(getVisibleDocument()); | |
| 3633 if (updateSlaveDocument(slaveDocument, start, length)) | |
| 3634 setVisibleDocument(slaveDocument); | |
| 3635 | |
| 3636 } catch (BadLocationException x) { | |
| 3637 throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_2")); //$NON-NLS-1$ | |
| 3638 } finally { | |
| 3639 setRedraw(true); | |
| 3640 } | |
| 3641 } | |
| 3642 | |
| 3643 /* | |
| 3644 * @see ITextViewer#resetVisibleRegion() | |
| 3645 */ | |
| 3646 public void resetVisibleRegion() { | |
| 3647 ISlaveDocumentManager manager= getSlaveDocumentManager(); | |
| 3648 if (manager !is null) { | |
| 3649 IDocument slave= getVisibleDocument(); | |
| 3650 IDocument master= manager.getMasterDocument(slave); | |
| 3651 if (master !is null) { | |
| 3652 setVisibleDocument(master); | |
| 3653 manager.freeSlaveDocument(slave); | |
| 3654 } | |
| 3655 } | |
| 3656 } | |
| 3657 | |
| 3658 | |
| 3659 //-------------------------------------- | |
| 3660 | |
| 3661 /* | |
| 3662 * @see ITextViewer#setTextDoubleClickStrategy(ITextDoubleClickStrategy, String) | |
| 3663 */ | |
| 3664 public void setTextDoubleClickStrategy(ITextDoubleClickStrategy strategy, String contentType) { | |
| 3665 | |
| 3666 if (strategy !is null) { | |
| 3667 if (fDoubleClickStrategies is null) | |
| 3668 fDoubleClickStrategies= new HashMap(); | |
| 162 | 3669 fDoubleClickStrategies.put(stringcast(contentType), cast(Object)strategy); |
| 129 | 3670 } else if (fDoubleClickStrategies !is null) |
| 3671 fDoubleClickStrategies.remove(contentType); | |
| 3672 } | |
| 3673 | |
| 3674 /** | |
| 3675 * Selects from the given map the one which is registered under | |
| 3676 * the content type of the partition in which the given offset is located. | |
| 3677 * | |
| 3678 * @param plugins the map from which to choose | |
| 3679 * @param offset the offset for which to find the plug-in | |
| 3680 * @return the plug-in registered under the offset's content type | |
| 3681 */ | |
| 3682 protected Object selectContentTypePlugin(int offset, Map plugins) { | |
| 3683 try { | |
| 3684 return selectContentTypePlugin(TextUtilities.getContentType(getDocument(), getDocumentPartitioning(), offset, true), plugins); | |
| 3685 } catch (BadLocationException x) { | |
|
140
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Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3686 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3687 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.selectContentTypePlugin")); //$NON-NLS-1$ |
| 129 | 3688 } |
| 3689 return null; | |
| 3690 } | |
| 3691 | |
| 3692 /** | |
| 3693 * Selects from the given <code>plug-ins</code> this one which is | |
| 3694 * registered for the given content <code>type</code>. | |
| 3695 * | |
| 3696 * @param type the type to be used as lookup key | |
| 3697 * @param plugins the table to be searched | |
| 3698 * @return the plug-in in the map for the given content type | |
| 3699 */ | |
| 3700 private Object selectContentTypePlugin(String type, Map plugins) { | |
| 3701 | |
| 3702 if (plugins is null) | |
| 3703 return null; | |
| 3704 | |
| 3705 return plugins.get(type); | |
| 3706 } | |
| 3707 | |
| 3708 /** | |
| 3709 * Hook called on receipt of a <code>VerifyEvent</code>. The event has | |
| 3710 * been translated into a <code>DocumentCommand</code> which can now be | |
| 3711 * manipulated by interested parties. By default, the hook forwards the command | |
| 3712 * to the installed instances of <code>IAutoEditStrategy</code>. | |
| 3713 * | |
| 3714 * @param command the document command representing the verify event | |
| 3715 */ | |
| 3716 protected void customizeDocumentCommand(DocumentCommand command) { | |
| 3717 if (isIgnoringAutoEditStrategies()) | |
| 3718 return; | |
|
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parents:
138
diff
changeset
|
3719 |
| 129 | 3720 IDocument document= getDocument(); |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
3721 |
| 129 | 3722 if (fTabsToSpacesConverter !is null) |
| 3723 fTabsToSpacesConverter.customizeDocumentCommand(document, command); | |
| 3724 | |
| 134 | 3725 List strategies= cast(List) selectContentTypePlugin(command.offset, fAutoIndentStrategies); |
| 129 | 3726 if (strategies is null) |
| 3727 return; | |
| 3728 | |
| 3729 switch (strategies.size()) { | |
| 3730 // optimization | |
| 3731 case 0: | |
| 3732 break; | |
| 3733 | |
| 3734 case 1: | |
| 134 | 3735 (cast(IAutoEditStrategy) strategies.iterator().next()).customizeDocumentCommand(document, command); |
| 129 | 3736 break; |
| 3737 | |
| 3738 // make iterator robust against adding/removing strategies from within strategies | |
| 3739 default: | |
| 3740 strategies= new ArrayList(strategies); | |
| 3741 for (final Iterator iterator= strategies.iterator(); iterator.hasNext(); ) | |
| 134 | 3742 (cast(IAutoEditStrategy) iterator.next()).customizeDocumentCommand(document, command); |
| 129 | 3743 |
| 3744 break; | |
| 3745 } | |
| 3746 } | |
| 3747 | |
| 3748 /** | |
| 3749 * Handles the verify event issued by the viewer's text widget. | |
| 3750 * | |
| 3751 * @see VerifyListener#verifyText(VerifyEvent) | |
| 3752 * @param e the verify event | |
| 3753 */ | |
| 3754 protected void handleVerifyEvent(VerifyEvent e) { | |
| 3755 | |
| 3756 if (fEventConsumer !is null) { | |
| 3757 fEventConsumer.processEvent(e); | |
| 3758 if (!e.doit) | |
| 3759 return; | |
| 3760 } | |
| 3761 | |
| 3762 IRegion modelRange= event2ModelRange(e); | |
| 3763 fDocumentCommand.setEvent(e, modelRange); | |
| 3764 customizeDocumentCommand(fDocumentCommand); | |
| 3765 if (!fDocumentCommand.fillEvent(e, modelRange)) { | |
| 3766 | |
| 3767 bool compoundChange= fDocumentCommand.getCommandCount() > 1; | |
| 3768 try { | |
| 3769 | |
| 3770 fVerifyListener.forward(false); | |
| 3771 | |
| 3772 if (compoundChange && fUndoManager !is null) | |
| 3773 fUndoManager.beginCompoundChange(); | |
| 3774 | |
| 3775 fDocumentCommand.execute(getDocument()); | |
| 3776 | |
| 3777 if (fTextWidget !is null) { | |
| 3778 int documentCaret= fDocumentCommand.caretOffset; | |
| 3779 if (documentCaret is -1) { | |
| 3780 // old behavior of document command | |
| 3781 documentCaret= fDocumentCommand.offset + (fDocumentCommand.text is null ? 0 : fDocumentCommand.text.length()); | |
| 3782 } | |
| 3783 | |
| 3784 int widgetCaret= modelOffset2WidgetOffset(documentCaret); | |
| 3785 if (widgetCaret is -1) { | |
| 3786 // try to move it to the closest spot | |
| 3787 IRegion region= getModelCoverage(); | |
| 3788 if (region !is null) { | |
| 3789 if (documentCaret <= region.getOffset()) | |
| 3790 widgetCaret= 0; | |
| 3791 else if (documentCaret >= region.getOffset() + region.getLength()) | |
| 3792 widgetCaret= getVisibleRegion().getLength(); | |
| 3793 } | |
| 3794 } | |
| 3795 | |
| 3796 if (widgetCaret !is -1) { | |
| 3797 // there is a valid widget caret | |
| 3798 fTextWidget.setCaretOffset(widgetCaret); | |
| 3799 } | |
| 3800 | |
| 3801 fTextWidget.showSelection(); | |
| 3802 } | |
| 3803 } catch (BadLocationException x) { | |
| 3804 | |
|
140
26688fec6d23
Following dsss compile errors
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parents:
138
diff
changeset
|
3805 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
3806 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.verifyText")); //$NON-NLS-1$ |
| 129 | 3807 |
| 3808 } finally { | |
| 3809 | |
| 3810 if (compoundChange && fUndoManager !is null) | |
| 3811 fUndoManager.endCompoundChange(); | |
| 3812 | |
| 3813 fVerifyListener.forward(true); | |
| 3814 | |
| 3815 } | |
| 3816 } | |
| 3817 } | |
| 3818 | |
| 3819 //---- text manipulation | |
| 3820 | |
| 3821 /** | |
| 3822 * Returns whether the marked region of this viewer is empty. | |
| 3823 * | |
| 3824 * @return <code>true</code> if the marked region of this viewer is empty, otherwise <code>false</code> | |
| 3825 * @since 2.0 | |
| 3826 */ | |
| 3827 private bool isMarkedRegionEmpty() { | |
| 3828 return | |
| 3829 fTextWidget is null || | |
| 3830 fMarkPosition is null || | |
| 3831 fMarkPosition.isDeleted() || | |
| 3832 modelRange2WidgetRange(fMarkPosition) is null; | |
| 3833 } | |
| 3834 | |
| 3835 /* | |
| 3836 * @see ITextViewer#canDoOperation(int) | |
| 3837 */ | |
| 3838 public bool canDoOperation(int operation) { | |
| 3839 | |
| 3840 if (fTextWidget is null || !redraws()) | |
| 3841 return false; | |
| 3842 | |
| 3843 switch (operation) { | |
| 3844 case CUT: | |
| 3845 return isEditable() &&(fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty()); | |
| 3846 case COPY: | |
| 3847 return fTextWidget.getSelectionCount() > 0 || !isMarkedRegionEmpty(); | |
| 3848 case DELETE: | |
| 3849 case PASTE: | |
| 3850 return isEditable(); | |
| 3851 case SELECT_ALL: | |
| 3852 return true; | |
| 3853 case SHIFT_LEFT: | |
| 3854 case SHIFT_RIGHT: | |
| 3855 return isEditable() && fIndentChars !is null && areMultipleLinesSelected(); | |
| 3856 case PREFIX: | |
| 3857 case STRIP_PREFIX: | |
| 3858 return isEditable() && fDefaultPrefixChars !is null; | |
| 3859 case UNDO: | |
| 3860 return fUndoManager !is null && fUndoManager.undoable(); | |
| 3861 case REDO: | |
| 3862 return fUndoManager !is null && fUndoManager.redoable(); | |
| 3863 case PRINT: | |
| 3864 return isPrintable(); | |
| 3865 } | |
| 3866 | |
| 3867 return false; | |
| 3868 } | |
| 3869 | |
| 3870 /* | |
| 3871 * @see ITextViewer#doOperation(int) | |
| 3872 */ | |
| 3873 public void doOperation(int operation) { | |
| 3874 | |
| 3875 if (fTextWidget is null || !redraws()) | |
| 3876 return; | |
| 3877 | |
| 3878 Point selection= null; | |
| 3879 | |
| 3880 switch (operation) { | |
| 3881 | |
| 3882 case UNDO: | |
| 3883 if (fUndoManager !is null) { | |
| 3884 ignoreAutoEditStrategies(true); | |
| 3885 fUndoManager.undo(); | |
| 3886 ignoreAutoEditStrategies(false); | |
| 3887 } | |
| 3888 break; | |
| 3889 case REDO: | |
| 3890 if (fUndoManager !is null) { | |
| 3891 ignoreAutoEditStrategies(true); | |
| 3892 fUndoManager.redo(); | |
| 3893 ignoreAutoEditStrategies(false); | |
| 3894 } | |
| 3895 break; | |
| 3896 case CUT: | |
| 3897 if (fTextWidget.getSelectionCount() is 0) | |
| 3898 copyMarkedRegion(true); | |
| 3899 else | |
| 3900 fTextWidget.cut(); | |
| 3901 | |
| 3902 selection= fTextWidget.getSelectionRange(); | |
| 3903 fireSelectionChanged(selection.x, selection.y); | |
| 3904 | |
| 3905 break; | |
| 3906 case COPY: | |
| 3907 if (fTextWidget.getSelectionCount() is 0) | |
| 3908 copyMarkedRegion(false); | |
| 3909 else | |
| 3910 fTextWidget.copy(); | |
| 3911 break; | |
| 3912 case PASTE: | |
| 3913 // ignoreAutoEditStrategies(true); | |
| 3914 fTextWidget.paste(); | |
| 3915 selection= fTextWidget.getSelectionRange(); | |
| 3916 fireSelectionChanged(selection.x, selection.y); | |
| 3917 // ignoreAutoEditStrategies(false); | |
| 3918 break; | |
| 3919 case DELETE: | |
| 3920 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 3921 selection= fTextWidget.getSelectionRange(); | |
| 3922 fireSelectionChanged(selection.x, selection.y); | |
| 3923 break; | |
| 3924 case SELECT_ALL: { | |
| 3925 if (getDocument() !is null) | |
| 3926 setSelectedRange(0, getDocument().getLength()); | |
| 3927 break; | |
| 3928 } | |
| 3929 case SHIFT_RIGHT: | |
| 3930 shift(false, true, false); | |
| 3931 break; | |
| 3932 case SHIFT_LEFT: | |
| 3933 shift(false, false, false); | |
| 3934 break; | |
| 3935 case PREFIX: | |
| 3936 shift(true, true, true); | |
| 3937 break; | |
| 3938 case STRIP_PREFIX: | |
| 3939 shift(true, false, true); | |
| 3940 break; | |
| 3941 case PRINT: | |
| 3942 print(); | |
| 3943 break; | |
| 3944 } | |
| 3945 } | |
| 3946 | |
| 3947 /** | |
| 3948 * Tells this viewer whether the registered auto edit strategies should be ignored. | |
| 3949 * | |
| 3950 * @param ignore <code>true</code> if the strategies should be ignored. | |
| 3951 * @since 2.1 | |
| 3952 */ | |
| 3953 protected void ignoreAutoEditStrategies(bool ignore) { | |
| 3954 if (fIgnoreAutoIndent is ignore) | |
| 3955 return; | |
| 3956 | |
| 3957 fIgnoreAutoIndent= ignore; | |
| 3958 | |
| 3959 IDocument document= getDocument(); | |
| 138 | 3960 if ( cast(IDocumentExtension2)document ) { |
| 134 | 3961 IDocumentExtension2 extension= cast(IDocumentExtension2) document; |
| 129 | 3962 if (ignore) |
| 3963 extension.ignorePostNotificationReplaces(); | |
| 3964 else | |
| 3965 extension.acceptPostNotificationReplaces(); | |
| 3966 } | |
| 3967 } | |
| 162 | 3968 package void ignoreAutoEditStrategies_package(bool ignore) { |
| 3969 return ignoreAutoEditStrategies(ignore); | |
| 3970 } | |
| 129 | 3971 |
| 3972 /** | |
| 3973 * Returns whether this viewer ignores the registered auto edit strategies. | |
| 3974 * | |
| 3975 * @return <code>true</code> if the strategies are ignored | |
| 3976 * @since 2.1 | |
| 3977 */ | |
| 3978 protected bool isIgnoringAutoEditStrategies() { | |
| 3979 return fIgnoreAutoIndent; | |
| 3980 } | |
| 3981 | |
| 3982 /* | |
| 3983 * @see ITextOperationTargetExtension#enableOperation(int, bool) | |
| 3984 * @since 2.0 | |
| 3985 */ | |
| 3986 public void enableOperation(int operation, bool enable) { | |
| 3987 /* | |
| 3988 * NO-OP by default. | |
| 3989 * Will be changed to regularly disable the known operations. | |
| 3990 */ | |
| 3991 } | |
| 3992 | |
| 3993 /** | |
| 3994 * Copies/cuts the marked region. | |
| 3995 * | |
| 3996 * @param delete <code>true</code> if the region should be deleted rather than copied. | |
| 3997 * @since 2.0 | |
| 3998 */ | |
|
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Following dsss compile errors
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parents:
138
diff
changeset
|
3999 protected void copyMarkedRegion(bool delete_) { |
| 129 | 4000 |
| 4001 if (fTextWidget is null) | |
| 4002 return; | |
| 4003 | |
| 4004 if (fMarkPosition is null || fMarkPosition.isDeleted() || modelRange2WidgetRange(fMarkPosition) is null) | |
| 4005 return; | |
| 4006 | |
| 4007 int widgetMarkOffset= modelOffset2WidgetOffset(fMarkPosition.offset); | |
| 4008 Point selection= fTextWidget.getSelection(); | |
| 4009 if (selection.x <= widgetMarkOffset) | |
| 4010 fTextWidget.setSelection(selection.x, widgetMarkOffset); | |
| 4011 else | |
| 4012 fTextWidget.setSelection(widgetMarkOffset, selection.x); | |
| 4013 | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4014 if (delete_) { |
| 129 | 4015 fTextWidget.cut(); |
| 4016 } else { | |
| 4017 fTextWidget.copy(); | |
| 4018 fTextWidget.setSelection(selection.x); // restore old cursor position | |
| 4019 } | |
| 4020 } | |
| 4021 | |
| 4022 /** | |
| 4023 * Deletes the current selection. If the selection has the length 0 | |
| 4024 * the selection is automatically extended to the right - either by 1 | |
| 4025 * or by the length of line delimiter if at the end of a line. | |
| 4026 * | |
| 4027 * @deprecated use <code>StyledText.invokeAction</code> instead | |
| 4028 */ | |
| 4029 protected void deleteText() { | |
| 4030 fTextWidget.invokeAction(ST.DELETE_NEXT); | |
| 4031 } | |
| 4032 | |
| 4033 /** | |
| 4034 * A block is selected if the character preceding the start of the | |
| 4035 * selection is a new line character. | |
| 4036 * | |
| 4037 * @return <code>true</code> if a block is selected | |
| 4038 */ | |
| 4039 protected bool isBlockSelected() { | |
| 4040 | |
| 4041 Point s= getSelectedRange(); | |
| 4042 if (s.y is 0) | |
| 4043 return false; | |
| 4044 | |
| 4045 try { | |
| 4046 | |
| 4047 IDocument document= getDocument(); | |
| 4048 int line= document.getLineOfOffset(s.x); | |
| 4049 int start= document.getLineOffset(line); | |
| 4050 return (s.x is start); | |
| 4051 | |
| 4052 } catch (BadLocationException x) { | |
| 4053 } | |
| 4054 | |
| 4055 return false; | |
| 4056 } | |
| 4057 | |
| 4058 /** | |
| 4059 * Returns <code>true</code> if one line is completely selected or if multiple lines are selected. | |
| 4060 * Being completely selected means that all characters except the new line characters are | |
| 4061 * selected. | |
| 4062 * | |
| 4063 * @return <code>true</code> if one or multiple lines are selected | |
| 4064 * @since 2.0 | |
| 4065 */ | |
| 4066 protected bool areMultipleLinesSelected() { | |
| 4067 Point s= getSelectedRange(); | |
| 4068 if (s.y is 0) | |
| 4069 return false; | |
| 4070 | |
| 4071 try { | |
| 4072 | |
| 4073 IDocument document= getDocument(); | |
| 4074 int startLine= document.getLineOfOffset(s.x); | |
| 4075 int endLine= document.getLineOfOffset(s.x + s.y); | |
| 4076 IRegion line= document.getLineInformation(startLine); | |
| 4077 return startLine !is endLine || (s.x is line.getOffset() && s.y is line.getLength()); | |
| 4078 | |
| 4079 } catch (BadLocationException x) { | |
| 4080 } | |
| 4081 | |
| 4082 return false; | |
| 4083 } | |
| 4084 | |
| 4085 /** | |
| 4086 * Returns the index of the first line whose start offset is in the given text range. | |
| 4087 * | |
| 4088 * @param region the text range in characters where to find the line | |
| 4089 * @return the first line whose start index is in the given range, -1 if there is no such line | |
| 4090 */ | |
| 4091 private int getFirstCompleteLineOfRegion(IRegion region) { | |
| 4092 | |
| 4093 try { | |
| 4094 | |
| 4095 IDocument d= getDocument(); | |
| 4096 | |
| 4097 int startLine= d.getLineOfOffset(region.getOffset()); | |
| 4098 | |
| 4099 int offset= d.getLineOffset(startLine); | |
| 4100 if (offset >= region.getOffset()) | |
| 4101 return startLine; | |
| 4102 | |
| 4103 offset= d.getLineOffset(startLine + 1); | |
| 4104 return (offset > region.getOffset() + region.getLength() ? -1 : startLine + 1); | |
| 4105 | |
| 4106 } catch (BadLocationException x) { | |
|
140
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Following dsss compile errors
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parents:
138
diff
changeset
|
4107 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4108 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.getFirstCompleteLineOfRegion")); //$NON-NLS-1$ |
| 129 | 4109 } |
| 4110 | |
| 4111 return -1; | |
| 4112 } | |
| 4113 | |
| 4114 | |
| 4115 /** | |
| 4116 * Creates a region describing the text block (something that starts at | |
| 4117 * the beginning of a line) completely containing the current selection. | |
| 4118 * | |
| 4119 * @param selection the selection to use | |
| 4120 * @return the region describing the text block comprising the given selection | |
| 4121 * @since 2.0 | |
| 4122 */ | |
| 4123 private IRegion getTextBlockFromSelection(Point selection) { | |
| 4124 | |
| 4125 try { | |
| 4126 IDocument document= getDocument(); | |
| 4127 IRegion line= document.getLineInformationOfOffset(selection.x); | |
| 4128 int length= selection.y is 0 ? line.getLength() : selection.y + (selection.x - line.getOffset()); | |
| 4129 return new Region(line.getOffset(), length); | |
| 4130 | |
| 4131 } catch (BadLocationException x) { | |
| 4132 } | |
| 4133 | |
| 4134 return null; | |
| 4135 } | |
| 4136 | |
| 4137 /** | |
| 4138 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4139 * The prefixes must start at the beginning of the line. | |
| 4140 * | |
| 4141 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4142 * @param right says whether to shift to the right or the left | |
| 4143 * | |
| 4144 * @deprecated use shift(bool, bool, bool) instead | |
| 4145 */ | |
| 4146 protected void shift(bool useDefaultPrefixes, bool right) { | |
| 4147 shift(useDefaultPrefixes, right, false); | |
| 4148 } | |
| 4149 | |
| 4150 /** | |
| 4151 * Shifts a text block to the right or left using the specified set of prefix characters. | |
| 4152 * If white space should be ignored the prefix characters must not be at the beginning of | |
| 4153 * the line when shifting to the left. There may be whitespace in front of the prefixes. | |
| 4154 * | |
| 4155 * @param useDefaultPrefixes says whether the configured default or indent prefixes should be used | |
| 4156 * @param right says whether to shift to the right or the left | |
| 4157 * @param ignoreWhitespace says whether whitespace in front of prefixes is allowed | |
| 4158 * @since 2.0 | |
| 4159 */ | |
| 4160 protected void shift(bool useDefaultPrefixes, bool right, bool ignoreWhitespace) { | |
| 4161 if (fUndoManager !is null) | |
| 4162 fUndoManager.beginCompoundChange(); | |
|
140
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Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4163 |
| 129 | 4164 IDocument d= getDocument(); |
| 4165 Map partitioners= null; | |
| 4166 DocumentRewriteSession rewriteSession= null; | |
| 4167 try { | |
| 4168 Point selection= getSelectedRange(); | |
| 4169 IRegion block= getTextBlockFromSelection(selection); | |
| 4170 ITypedRegion[] regions= TextUtilities.computePartitioning(d, getDocumentPartitioning(), block.getOffset(), block.getLength(), false); | |
| 4171 | |
| 4172 int lineCount= 0; | |
| 4173 int[] lines= new int[regions.length * 2]; // [start line, end line, start line, end line, ...] | |
| 4174 for (int i= 0, j= 0; i < regions.length; i++, j+= 2) { | |
| 4175 // start line of region | |
| 4176 lines[j]= getFirstCompleteLineOfRegion(regions[i]); | |
| 4177 // end line of region | |
| 4178 int length= regions[i].getLength(); | |
| 4179 int offset= regions[i].getOffset() + length; | |
| 4180 if (length > 0) | |
| 4181 offset--; | |
| 4182 lines[j + 1]= (lines[j] is -1 ? -1 : d.getLineOfOffset(offset)); | |
| 4183 lineCount += lines[j + 1] - lines[j] + 1; | |
| 4184 } | |
| 4185 | |
| 138 | 4186 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4187 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4188 rewriteSession= extension.startRewriteSession(DocumentRewriteSessionType.SEQUENTIAL); |
| 4189 } else { | |
| 4190 setRedraw(false); | |
| 4191 startSequentialRewriteMode(true); | |
| 4192 } | |
| 4193 if (lineCount >= 20) | |
| 4194 partitioners= TextUtilities.removeDocumentPartitioners(d); | |
| 4195 | |
| 4196 // Perform the shift operation. | |
| 4197 Map map= (useDefaultPrefixes ? fDefaultPrefixChars : fIndentChars); | |
| 4198 for (int i= 0, j= 0; i < regions.length; i++, j += 2) { | |
| 156 | 4199 String[] prefixes= stringArrayFromObject(selectContentTypePlugin(regions[i].getType(), map)); |
| 129 | 4200 if (prefixes !is null && prefixes.length > 0 && lines[j] >= 0 && lines[j + 1] >= 0) { |
| 4201 if (right) | |
| 4202 shiftRight(lines[j], lines[j + 1], prefixes[0]); | |
| 4203 else | |
| 4204 shiftLeft(lines[j], lines[j + 1], prefixes, ignoreWhitespace); | |
| 4205 } | |
| 4206 } | |
| 4207 | |
| 4208 } catch (BadLocationException x) { | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4209 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4210 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.shift_1")); //$NON-NLS-1$ |
| 129 | 4211 |
| 4212 } finally { | |
| 4213 | |
| 4214 if (partitioners !is null) | |
| 4215 TextUtilities.addDocumentPartitioners(d, partitioners); | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4216 |
| 138 | 4217 if ( cast(IDocumentExtension4)d ) { |
| 134 | 4218 IDocumentExtension4 extension= cast(IDocumentExtension4) d; |
| 129 | 4219 extension.stopRewriteSession(rewriteSession); |
| 4220 } else { | |
| 4221 stopSequentialRewriteMode(); | |
| 4222 setRedraw(true); | |
| 4223 } | |
| 4224 | |
| 4225 if (fUndoManager !is null) | |
| 4226 fUndoManager.endCompoundChange(); | |
| 4227 } | |
| 4228 } | |
| 4229 | |
| 4230 /** | |
| 4231 * Shifts the specified lines to the right inserting the given prefix | |
| 4232 * at the beginning of each line | |
| 4233 * | |
| 4234 * @param prefix the prefix to be inserted | |
| 4235 * @param startLine the first line to shift | |
| 4236 * @param endLine the last line to shift | |
| 4237 * @since 2.0 | |
| 4238 */ | |
| 4239 private void shiftRight(int startLine, int endLine, String prefix) { | |
| 4240 | |
| 4241 try { | |
| 4242 | |
| 4243 IDocument d= getDocument(); | |
| 4244 while (startLine <= endLine) { | |
| 4245 d.replace(d.getLineOffset(startLine++), 0, prefix); | |
| 4246 } | |
| 4247 | |
| 4248 } catch (BadLocationException x) { | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4249 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4250 System.out_.println("TextViewer.shiftRight: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4251 } |
| 4252 } | |
| 4253 | |
| 4254 /** | |
| 4255 * Shifts the specified lines to the right or to the left. On shifting to the right | |
| 4256 * it insert <code>prefixes[0]</code> at the beginning of each line. On shifting to the | |
| 4257 * left it tests whether each of the specified lines starts with one of the specified | |
| 4258 * prefixes and if so, removes the prefix. | |
| 4259 * | |
| 4260 * @param startLine the first line to shift | |
| 4261 * @param endLine the last line to shift | |
| 4262 * @param prefixes the prefixes to be used for shifting | |
| 4263 * @param ignoreWhitespace <code>true</code> if whitespace should be ignored, <code>false</code> otherwise | |
| 4264 * @since 2.0 | |
| 4265 */ | |
| 4266 private void shiftLeft(int startLine, int endLine, String[] prefixes, bool ignoreWhitespace) { | |
| 4267 | |
| 4268 IDocument d= getDocument(); | |
| 4269 | |
| 4270 try { | |
| 4271 | |
| 4272 IRegion[] occurrences= new IRegion[endLine - startLine + 1]; | |
| 4273 | |
| 4274 // find all the first occurrences of prefix in the given lines | |
| 4275 for (int i= 0; i < occurrences.length; i++) { | |
| 4276 | |
| 4277 IRegion line= d.getLineInformation(startLine + i); | |
| 4278 String text= d.get(line.getOffset(), line.getLength()); | |
| 4279 | |
| 4280 int index= -1; | |
| 4281 int[] found= TextUtilities.indexOf(prefixes, text, 0); | |
| 4282 if (found[0] !is -1) { | |
| 4283 if (ignoreWhitespace) { | |
| 4284 String s= d.get(line.getOffset(), found[0]); | |
| 4285 s= s.trim(); | |
| 4286 if (s.length() is 0) | |
| 4287 index= line.getOffset() + found[0]; | |
| 4288 } else if (found[0] is 0) | |
| 4289 index= line.getOffset(); | |
| 4290 } | |
| 4291 | |
| 4292 if (index > -1) { | |
| 4293 // remember where prefix is in line, so that it can be removed | |
| 4294 int length= prefixes[found[1]].length(); | |
| 4295 if (length is 0 && !ignoreWhitespace && line.getLength() > 0) { | |
| 4296 // found a non-empty line which cannot be shifted | |
| 4297 return; | |
| 4298 } | |
| 4299 occurrences[i]= new Region(index, length); | |
| 4300 } else { | |
| 4301 // found a line which cannot be shifted | |
| 4302 return; | |
| 4303 } | |
| 4304 } | |
| 4305 | |
| 4306 // OK - change the document | |
| 4307 int decrement= 0; | |
| 4308 for (int i= 0; i < occurrences.length; i++) { | |
| 4309 IRegion r= occurrences[i]; | |
| 4310 d.replace(r.getOffset() - decrement, r.getLength(), ""); //$NON-NLS-1$ | |
| 4311 decrement += r.getLength(); | |
| 4312 } | |
| 4313 | |
| 4314 } catch (BadLocationException x) { | |
|
140
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4315 if (TRACE_ERRORS) |
|
26688fec6d23
Following dsss compile errors
Frank Benoit <benoit@tionex.de>
parents:
138
diff
changeset
|
4316 System.out_.println("TextViewer.shiftLeft: BadLocationException"); //$NON-NLS-1$ |
| 129 | 4317 } |
| 4318 } | |
| 4319 | |
| 4320 /** | |
| 4321 * Returns whether the shown text can be printed. | |
| 4322 * | |
| 4323 * @return the viewer's printable mode | |
| 4324 */ | |
| 4325 protected bool isPrintable() { | |
| 4326 /* | |
| 4327 * 1GK7Q10: ITPUI:WIN98 - internal error after invoking print at editor view | |
| 4328 * Changed from returning true to testing the length of the printer queue | |
| 4329 */ | |
| 4330 PrinterData[] printerList= Printer.getPrinterList(); | |
| 4331 return (printerList !is null && printerList.length > 0); | |
| 4332 } | |
| 4333 | |
| 4334 /** | |
| 4335 * {@inheritDoc} | |
|
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|
4336 * |
| 129 | 4337 * @since 3.4 |
| 4338 */ | |
| 4339 public void print(StyledTextPrintOptions options) { | |
| 4340 final PrintDialog dialog= new PrintDialog(fTextWidget.getShell(), DWT.PRIMARY_MODAL); | |
| 4341 final PrinterData data= dialog.open(); | |
| 4342 | |
| 4343 if (data !is null) { | |
| 4344 final Printer printer= new Printer(data); | |
| 4345 final Runnable styledTextPrinter= fTextWidget.print(printer, options); | |
| 4346 | |
|
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|
4347 void threadrun() { |
|
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|
4348 styledTextPrinter.run(); |
|
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|
4349 printer.dispose(); |
|
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|
4350 } |
| 172 | 4351 JThread printingThread= new JThread( &threadrun ); |
| 4352 printingThread.setName( "Printing" ); //$NON-NLS-1$ | |
| 129 | 4353 printingThread.start(); |
| 4354 } | |
| 4355 } | |
| 4356 | |
| 4357 /** | |
| 4358 * Brings up a print dialog and calls <code>printContents(Printer)</code> | |
| 4359 * which performs the actual print. | |
| 4360 */ | |
| 4361 protected void print() { | |
| 4362 StyledTextPrintOptions options= new StyledTextPrintOptions(); | |
| 4363 options.printTextFontStyle= true; | |
| 4364 options.printTextForeground= true; | |
| 4365 print(options); | |
| 4366 } | |
| 4367 | |
| 4368 //------ find support | |
| 4369 | |
| 4370 /** | |
| 4371 * Adheres to the contract of {@link IFindReplaceTarget#canPerformFind()}. | |
| 4372 * | |
| 4373 * @return <code>true</code> if find can be performed, <code>false</code> otherwise | |
| 4374 */ | |
| 4375 protected bool canPerformFind() { | |
| 4376 IDocument d= getVisibleDocument(); | |
| 4377 return (fTextWidget !is null && d !is null && d.getLength() > 0); | |
| 4378 } | |
| 4379 | |
| 4380 /** | |
| 4381 * Adheres to the contract of {@link IFindReplaceTarget#findAndSelect(int, String, bool, bool, bool)}. | |
| 4382 * | |
| 4383 * @param startPosition the start position | |
| 4384 * @param findString the find string specification | |
| 4385 * @param forwardSearch the search direction | |
| 4386 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4387 * @param wholeWord <code>true</code> if match must be whole words, <code>false</code> otherwise | |
| 4388 * @return the model offset of the first match | |
| 4389 * @deprecated as of 3.0 use {@link #findAndSelect(int, String, bool, bool, bool, bool)} | |
| 4390 */ | |
| 4391 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord) { | |
| 4392 try { | |
| 4393 return findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, false); | |
| 4394 } catch (IllegalStateException ex) { | |
| 4395 return -1; | |
| 4396 } catch (PatternSyntaxException ex) { | |
| 4397 return -1; | |
| 4398 } | |
| 4399 } | |
| 4400 | |
| 4401 /** | |
| 4402 * Adheres to the contract of | |
| 4403 * {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4404 * | |
| 4405 * @param startPosition the start position | |
| 4406 * @param findString the find string specification | |
| 4407 * @param forwardSearch the search direction | |
| 4408 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4409 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4410 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4411 * @return the model offset of the first match | |
| 4412 * | |
| 4413 */ | |
| 4414 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) { | |
| 4415 if (fTextWidget is null) | |
| 4416 return -1; | |
| 4417 | |
| 4418 try { | |
| 4419 | |
| 4420 int widgetOffset= (startPosition is -1 ? startPosition : modelOffset2WidgetOffset(startPosition)); | |
| 4421 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4422 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4423 if (matchRegion !is null) { | |
| 4424 int widgetPos= matchRegion.getOffset(); | |
| 4425 int length= matchRegion.getLength(); | |
| 4426 | |
| 4427 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4428 char startChar= adapter.charAt(widgetPos); | |
| 4429 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4430 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 162 | 4431 bool redraws_= redraws(); |
| 4432 if (borderHasLineDelimiter && redraws_) | |
| 129 | 4433 setRedraw(false); |
| 4434 | |
| 4435 if (redraws()) { | |
| 4436 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4437 internalRevealRange(widgetPos, widgetPos + length); | |
| 4438 selectionChanged(widgetPos, length); | |
| 4439 } else { | |
| 4440 setSelectedRange(widgetOffset2ModelOffset(widgetPos), length); | |
| 162 | 4441 if (redraws_) |
| 129 | 4442 setRedraw(true); |
| 4443 } | |
| 4444 | |
| 4445 return widgetOffset2ModelOffset(widgetPos); | |
| 4446 } | |
| 4447 | |
| 4448 } catch (BadLocationException x) { | |
|
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|
4449 if (TRACE_ERRORS) |
|
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|
4450 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4451 } |
| 4452 | |
| 4453 return -1; | |
| 4454 } | |
| 4455 | |
| 4456 /** | |
| 4457 * Adheres to the contract of {@link dwtx.jface.text.IFindReplaceTargetExtension3#findAndSelect(int, String, bool, bool, bool, bool)}. | |
| 4458 * | |
| 4459 * @param startPosition the start position | |
| 4460 * @param findString the find string specification | |
| 4461 * @param forwardSearch the search direction | |
| 4462 * @param caseSensitive <code>true</code> if case sensitive, <code>false</code> otherwise | |
| 4463 * @param wholeWord <code>true</code> if matches must be whole words, <code>false</code> otherwise | |
| 4464 * @param rangeOffset the search scope offset | |
| 4465 * @param rangeLength the search scope length | |
| 4466 * @param regExSearch <code>true</code> if <code>findString</code> is a regular expression, <code>false</code> otherwise | |
| 4467 * @return the model offset of the first match | |
| 4468 * @since 3.0 | |
| 4469 */ | |
| 4470 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) { | |
| 4471 if (fTextWidget is null) | |
| 4472 return -1; | |
| 4473 | |
| 4474 try { | |
| 4475 | |
| 4476 int modelOffset; | |
| 4477 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) { | |
| 4478 modelOffset= rangeOffset; | |
| 4479 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) { | |
| 4480 modelOffset= rangeOffset + rangeLength; | |
| 4481 } else { | |
| 4482 modelOffset= startPosition; | |
| 4483 } | |
| 4484 | |
| 4485 int widgetOffset= modelOffset2WidgetOffset(modelOffset); | |
| 4486 if (widgetOffset is -1) | |
| 4487 return -1; | |
| 4488 | |
| 4489 FindReplaceDocumentAdapter adapter= getFindReplaceDocumentAdapter(); | |
| 4490 IRegion matchRegion= adapter.find(widgetOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch); | |
| 4491 int widgetPos= -1; | |
| 4492 int length= 0; | |
| 4493 if (matchRegion !is null) { | |
| 4494 widgetPos= matchRegion.getOffset(); | |
| 4495 length= matchRegion.getLength(); | |
| 4496 } | |
| 4497 int modelPos= widgetPos is -1 ? -1 : widgetOffset2ModelOffset(widgetPos); | |
| 4498 | |
| 4499 if (widgetPos !is -1 && (modelPos < rangeOffset || modelPos + length > rangeOffset + rangeLength)) | |
| 4500 widgetPos= -1; | |
| 4501 | |
| 4502 if (widgetPos > -1) { | |
| 4503 | |
| 4504 // Prevents setting of widget selection with line delimiters at beginning or end | |
| 4505 char startChar= adapter.charAt(widgetPos); | |
| 4506 char endChar= adapter.charAt(widgetPos+length-1); | |
| 4507 bool borderHasLineDelimiter= startChar is '\n' || startChar is '\r' || endChar is '\n' || endChar is '\r'; | |
| 162 | 4508 bool redraws_= redraws(); |
| 4509 if (borderHasLineDelimiter && redraws_) | |
| 129 | 4510 setRedraw(false); |
| 4511 | |
| 4512 if (redraws()) { | |
| 4513 fTextWidget.setSelectionRange(widgetPos, length); | |
| 4514 internalRevealRange(widgetPos, widgetPos + length); | |
| 4515 selectionChanged(widgetPos, length); | |
| 4516 } else { | |
| 4517 setSelectedRange(modelPos, length); | |
| 162 | 4518 if (redraws_) |
| 129 | 4519 setRedraw(true); |
| 4520 } | |
| 4521 | |
| 4522 return modelPos; | |
| 4523 } | |
| 4524 | |
| 4525 | |
| 4526 } catch (BadLocationException x) { | |
|
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|
4527 if (TRACE_ERRORS) |
|
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changeset
|
4528 System.out_.println(JFaceTextMessages.getString("TextViewer.error.bad_location.findAndSelect")); //$NON-NLS-1$ |
| 129 | 4529 } |
| 4530 | |
| 4531 return -1; | |
| 4532 } | |
| 4533 | |
| 4534 //---------- text presentation support | |
| 4535 | |
| 4536 /* | |
| 4537 * @see ITextViewer#setTextColor(Color) | |
| 4538 */ | |
| 4539 public void setTextColor(Color color) { | |
| 4540 if (color !is null) | |
| 4541 setTextColor(color, 0, getDocument().getLength(), true); | |
| 4542 } | |
| 4543 | |
| 4544 /* | |
| 4545 * @see ITextViewer#setTextColor(Color, start, length, bool) | |
| 4546 */ | |
| 4547 public void setTextColor(Color color, int start, int length, bool controlRedraw) { | |
| 4548 if (fTextWidget !is null) { | |
| 4549 | |
| 4550 StyleRange s= new StyleRange(); | |
| 4551 s.foreground= color; | |
| 4552 s.start= start; | |
| 4553 s.length= length; | |
| 4554 | |
| 4555 s= modelStyleRange2WidgetStyleRange(s); | |
| 4556 if (s !is null) { | |
| 4557 if (controlRedraw) | |
| 4558 fTextWidget.setRedraw(false); | |
| 4559 try { | |
| 4560 fTextWidget.setStyleRange(s); | |
| 4561 } finally { | |
| 4562 if (controlRedraw) | |
| 4563 fTextWidget.setRedraw(true); | |
| 4564 } | |
| 4565 } | |
| 4566 } | |
| 4567 } | |
| 4568 | |
| 4569 /** | |
| 4570 * Adds the given presentation to the viewer's style information. | |
| 4571 * | |
| 4572 * @param presentation the presentation to be added | |
| 4573 */ | |
| 4574 private void addPresentation(TextPresentation presentation) { | |
| 4575 | |
| 4576 StyleRange range= presentation.getDefaultStyleRange(); | |
| 4577 if (range !is null) { | |
| 4578 | |
| 4579 range= modelStyleRange2WidgetStyleRange(range); | |
| 4580 if (range !is null) | |
| 4581 fTextWidget.setStyleRange(range); | |
|
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diff
changeset
|
4582 |
| 129 | 4583 ArrayList ranges= new ArrayList(presentation.getDenumerableRanges()); |
| 4584 Iterator e= presentation.getNonDefaultStyleRangeIterator(); | |
| 4585 while (e.hasNext()) { | |
| 134 | 4586 range= cast(StyleRange) e.next(); |
| 129 | 4587 range= modelStyleRange2WidgetStyleRange(range); |
| 4588 if (range !is null) | |
| 4589 ranges.add(range); | |
| 4590 } | |
|
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parents:
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diff
changeset
|
4591 |
| 129 | 4592 if (!ranges.isEmpty()) |
| 156 | 4593 fTextWidget.replaceStyleRanges(0, 0, arraycast!(StyleRange)(ranges.toArray())); |
|
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changeset
|
4594 |
| 129 | 4595 } else { |
| 4596 IRegion region= modelRange2WidgetRange(presentation.getCoverage()); | |
| 4597 if (region is null) | |
| 4598 return; | |
| 4599 | |
| 4600 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4601 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4602 while (e.hasNext()) { | |
| 134 | 4603 range= cast(StyleRange) e.next(); |
| 129 | 4604 range= modelStyleRange2WidgetStyleRange(range); |
| 4605 if (range !is null) | |
| 4606 list.add(range); | |
| 4607 } | |
| 4608 | |
| 4609 if (!list.isEmpty()) { | |
| 4610 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4611 list.toArray(ranges); | |
| 4612 fTextWidget.replaceStyleRanges(region.getOffset(), region.getLength(), ranges); | |
| 4613 } | |
| 4614 } | |
| 4615 } | |
| 4616 | |
| 4617 /** | |
| 4618 * Applies the given presentation to the given text widget. Helper method. | |
| 4619 * | |
| 4620 * @param presentation the style information | |
| 4621 * @since 2.1 | |
| 4622 */ | |
| 4623 private void applyTextPresentation(TextPresentation presentation) { | |
| 4624 | |
| 4625 List list= new ArrayList(presentation.getDenumerableRanges()); | |
| 4626 Iterator e= presentation.getAllStyleRangeIterator(); | |
| 4627 while (e.hasNext()) { | |
| 134 | 4628 StyleRange range= cast(StyleRange) e.next(); |
| 129 | 4629 range= modelStyleRange2WidgetStyleRange(range); |
| 4630 if (range !is null) | |
| 4631 list.add(range); | |
| 4632 } | |
| 4633 | |
| 4634 if (!list.isEmpty()) { | |
| 4635 StyleRange[] ranges= new StyleRange[list.size()]; | |
| 4636 list.toArray(ranges); | |
| 4637 fTextWidget.setStyleRanges(ranges); | |
| 4638 } | |
| 4639 } | |
| 4640 | |
| 4641 /** | |
| 4642 * Returns the visible region if it is not equal to the whole document. | |
| 4643 * Otherwise returns <code>null</code>. | |
| 4644 * | |
| 4645 * @return the viewer's visible region if smaller than input document, otherwise <code>null</code> | |
| 4646 */ | |
| 4647 protected IRegion _internalGetVisibleRegion() { | |
| 4648 | |
| 4649 IDocument document= getVisibleDocument(); | |
| 138 | 4650 if ( cast(ChildDocument)document ) { |
| 134 | 4651 Position p= (cast(ChildDocument) document).getParentDocumentRange(); |
| 129 | 4652 return new Region(p.getOffset(), p.getLength()); |
| 4653 } | |
| 4654 | |
| 4655 return null; | |
| 4656 } | |
| 4657 | |
| 4658 /* | |
| 4659 * @see ITextViewer#changeTextPresentation(TextPresentation, bool) | |
| 4660 */ | |
| 4661 public void changeTextPresentation(TextPresentation presentation, bool controlRedraw) { | |
| 4662 | |
| 4663 if (presentation is null || !redraws()) | |
| 4664 return; | |
| 4665 | |
| 4666 if (fTextWidget is null) | |
| 4667 return; | |
| 4668 | |
| 4669 | |
| 4670 /* | |
| 4671 * Call registered text presentation listeners | |
| 4672 * and let them apply their presentation. | |
| 4673 */ | |
| 4674 if (fTextPresentationListeners !is null) { | |
| 4675 ArrayList listeners= new ArrayList(fTextPresentationListeners); | |
| 4676 for (int i= 0, size= listeners.size(); i < size; i++) { | |
| 134 | 4677 ITextPresentationListener listener= cast(ITextPresentationListener)listeners.get(i); |
| 129 | 4678 listener.applyTextPresentation(presentation); |
| 4679 } | |
| 4680 } | |
| 4681 | |
| 4682 if (presentation.isEmpty()) | |
| 4683 return; | |
| 4684 | |
| 4685 if (controlRedraw) | |
| 4686 fTextWidget.setRedraw(false); | |
| 4687 | |
| 4688 if (fReplaceTextPresentation) | |
| 4689 applyTextPresentation(presentation); | |
| 4690 else | |
| 4691 addPresentation(presentation); | |
| 4692 | |
| 4693 if (controlRedraw) | |
| 4694 fTextWidget.setRedraw(true); | |
| 4695 } | |
| 4696 | |
| 4697 /* | |
| 4698 * @see ITextViewer#getFindReplaceTarget() | |
| 4699 */ | |
| 4700 public IFindReplaceTarget getFindReplaceTarget() { | |
| 4701 if (fFindReplaceTarget is null) | |
| 4702 fFindReplaceTarget= new FindReplaceTarget(); | |
| 4703 return fFindReplaceTarget; | |
| 4704 } | |
| 4705 | |
| 4706 /** | |
| 4707 * Returns the find/replace document adapter. | |
| 4708 * | |
| 4709 * @return the find/replace document adapter. | |
| 4710 * @since 3.0 | |
| 4711 */ | |
| 4712 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() { | |
| 4713 if (fFindReplaceDocumentAdapter is null) | |
| 4714 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(getVisibleDocument()); | |
| 4715 return fFindReplaceDocumentAdapter; | |
| 4716 } | |
| 4717 | |
| 4718 /* | |
| 4719 * @see ITextViewer#getTextOperationTarget() | |
| 4720 */ | |
| 4721 public ITextOperationTarget getTextOperationTarget() { | |
| 4722 return this; | |
| 4723 } | |
| 4724 | |
| 4725 /* | |
| 4726 * @see ITextViewerExtension#appendVerifyKeyListener(VerifyKeyListener) | |
| 4727 * @since 2.0 | |
| 4728 */ | |
| 4729 public void appendVerifyKeyListener(VerifyKeyListener listener) { | |
| 4730 int index= fVerifyKeyListenersManager.numberOfListeners(); | |
| 4731 fVerifyKeyListenersManager.insertListener(listener, index); | |
| 4732 } | |
| 4733 | |
| 4734 /* | |
| 4735 * @see ITextViewerExtension#prependVerifyKeyListener(VerifyKeyListener) | |
| 4736 * @since 2.0 | |
| 4737 */ | |
| 4738 public void prependVerifyKeyListener(VerifyKeyListener listener) { | |
| 4739 fVerifyKeyListenersManager.insertListener(listener, 0); | |
| 4740 | |
| 4741 } | |
| 4742 | |
| 4743 /* | |
| 4744 * @see ITextViewerExtension#removeVerifyKeyListener(VerifyKeyListener) | |
| 4745 * @since 2.0 | |
| 4746 */ | |
| 4747 public void removeVerifyKeyListener(VerifyKeyListener listener) { | |
| 4748 fVerifyKeyListenersManager.removeListener(listener); | |
| 4749 } | |
| 4750 | |
| 4751 /* | |
| 4752 * @see ITextViewerExtension#getMark() | |
| 4753 * @since 2.0 | |
| 4754 */ | |
| 4755 public int getMark() { | |
| 4756 return fMarkPosition is null || fMarkPosition.isDeleted() ? -1 : fMarkPosition.getOffset(); | |
| 4757 } | |
| 4758 | |
| 4759 /* | |
| 4760 * @see ITextViewerExtension#setMark(int) | |
| 4761 * @since 2.0 | |
| 4762 */ | |
| 4763 public void setMark(int offset) { | |
| 4764 | |
| 4765 // clear | |
| 4766 if (offset is -1) { | |
| 4767 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) { | |
| 4768 | |
| 4769 IDocument document= getDocument(); | |
| 4770 if (document !is null) | |
| 4771 document.removePosition(fMarkPosition); | |
| 4772 } | |
| 4773 | |
| 4774 fMarkPosition= null; | |
| 4775 | |
| 4776 markChanged(-1, 0); | |
| 4777 | |
| 4778 // set | |
| 4779 } else { | |
| 4780 | |
| 4781 IDocument document= getDocument(); | |
| 4782 if (document is null) { | |
| 4783 fMarkPosition= null; | |
| 4784 return; | |
| 4785 } | |
| 4786 | |
| 4787 if (fMarkPosition !is null) | |
| 4788 document.removePosition(fMarkPosition); | |
| 4789 | |
| 4790 fMarkPosition= null; | |
| 4791 | |
| 4792 try { | |
| 4793 | |
| 4794 Position position= new Position(offset); | |
| 4795 document.addPosition(MARK_POSITION_CATEGORY, position); | |
| 4796 fMarkPosition= position; | |
| 4797 | |
| 4798 } catch (BadLocationException e) { | |
| 4799 return; | |
| 4800 } catch (BadPositionCategoryException e) { | |
| 4801 return; | |
| 4802 } | |
| 4803 | |
| 4804 markChanged(modelOffset2WidgetOffset(fMarkPosition.offset), 0); | |
| 4805 } | |
| 4806 } | |
| 4807 | |
| 4808 /* | |
| 4809 * @see Viewer#inputChanged(Object, Object) | |
| 4810 * @since 2.0 | |
| 4811 */ | |
| 4812 protected void inputChanged(Object newInput, Object oldInput) { | |
| 4813 | |
| 134 | 4814 IDocument oldDocument= cast(IDocument) oldInput; |
| 129 | 4815 if (oldDocument !is null) { |
| 4816 | |
| 4817 if (fMarkPosition !is null && !fMarkPosition.isDeleted()) | |
| 4818 oldDocument.removePosition(fMarkPosition); | |
| 4819 | |
| 4820 try { | |
| 4821 oldDocument.removePositionUpdater(fMarkPositionUpdater); | |
| 4822 oldDocument.removePositionCategory(MARK_POSITION_CATEGORY); | |
| 4823 | |
| 4824 } catch (BadPositionCategoryException e) { | |
| 4825 } | |
| 4826 } | |
| 4827 | |
| 4828 fMarkPosition= null; | |
| 4829 | |
| 138 | 4830 if ( cast(IDocumentExtension4)oldDocument ) { |
| 134 | 4831 IDocumentExtension4 document= cast(IDocumentExtension4) oldDocument; |
| 129 | 4832 document.removeDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4833 } | |
| 4834 | |
| 4835 super.inputChanged(newInput, oldInput); | |
| 4836 | |
| 138 | 4837 if ( cast(IDocumentExtension4)newInput ) { |
| 134 | 4838 IDocumentExtension4 document= cast(IDocumentExtension4) newInput; |
| 129 | 4839 document.addDocumentRewriteSessionListener(fDocumentRewriteSessionListener); |
| 4840 } | |
| 4841 | |
| 134 | 4842 IDocument newDocument= cast(IDocument) newInput; |
| 129 | 4843 if (newDocument !is null) { |
| 4844 newDocument.addPositionCategory(MARK_POSITION_CATEGORY); | |
| 4845 newDocument.addPositionUpdater(fMarkPositionUpdater); | |
| 4846 } | |
| 4847 } | |
| 4848 | |
| 4849 /** | |
| 4850 * Informs all text listeners about the change of the viewer's redraw state. | |
| 4851 * @since 2.0 | |
| 4852 */ | |
| 4853 private void fireRedrawChanged() { | |
| 4854 fWidgetCommand.start= 0; | |
| 4855 fWidgetCommand.length= 0; | |
| 4856 fWidgetCommand.text= null; | |
| 4857 fWidgetCommand.event= null; | |
| 4858 updateTextListeners(fWidgetCommand); | |
| 4859 } | |
| 4860 | |
| 4861 /** | |
| 4862 * Enables the redrawing of this text viewer. | |
| 4863 * @since 2.0 | |
| 4864 */ | |
| 4865 protected void enabledRedrawing() { | |
| 4866 enabledRedrawing(-1); | |
| 4867 } | |
| 4868 /** | |
| 4869 * Enables the redrawing of this text viewer. | |
| 4870 * | |
| 4871 * @param topIndex the top index to be set or <code>-1</code> | |
| 4872 * @since 3.0 | |
| 4873 */ | |
| 4874 protected void enabledRedrawing(int topIndex) { | |
| 138 | 4875 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4876 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4877 StyledText textWidget= getTextWidget(); |
| 4878 if (textWidget !is null && !textWidget.isDisposed()) { | |
| 4879 extension.resumeForwardingDocumentChanges(); | |
| 4880 if (topIndex > -1) { | |
| 4881 try { | |
| 4882 setTopIndex(topIndex); | |
| 4883 } catch (IllegalArgumentException x) { | |
| 4884 // changes don't allow for the previous top pixel | |
| 4885 } | |
| 4886 } | |
| 4887 } | |
| 4888 } | |
| 4889 | |
| 4890 if (fViewerState !is null) { | |
| 4891 fViewerState.restore(topIndex is -1); | |
| 4892 fViewerState= null; | |
| 4893 } | |
| 4894 | |
| 4895 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4896 fTextWidget.setRedraw(true); | |
| 4897 | |
| 4898 fireRedrawChanged(); | |
| 4899 } | |
| 4900 | |
| 4901 /** | |
| 4902 * Disables the redrawing of this text viewer. Subclasses may extend. | |
| 4903 * @since 2.0 | |
| 4904 */ | |
| 4905 protected void disableRedrawing() { | |
| 4906 if (fViewerState is null) | |
| 4907 fViewerState= new ViewerState(); | |
| 4908 | |
| 138 | 4909 if ( cast(IDocumentAdapterExtension)fDocumentAdapter ) { |
| 134 | 4910 IDocumentAdapterExtension extension= cast(IDocumentAdapterExtension) fDocumentAdapter; |
| 129 | 4911 extension.stopForwardingDocumentChanges(); |
| 4912 } | |
| 4913 | |
| 4914 if (fTextWidget !is null && !fTextWidget.isDisposed()) | |
| 4915 fTextWidget.setRedraw(false); | |
| 4916 | |
| 4917 fireRedrawChanged(); | |
| 4918 } | |
| 4919 | |
| 4920 /* | |
| 4921 * @see ITextViewerExtension#setRedraw(bool) | |
| 4922 * @since 2.0 | |
| 4923 */ | |
| 4924 public final void setRedraw(bool redraw) { | |
| 4925 setRedraw(redraw, -1); | |
| 4926 } | |
| 4927 | |
| 4928 /** | |
| 4929 * Basically same functionality as | |
| 4930 * <code>ITextViewerExtension.setRedraw(bool)</code>. Adds a way for | |
| 4931 * subclasses to pass in a desired top index that should be used when | |
| 4932 * <code>redraw</code> is <code>true</code>. If <code>topIndex</code> | |
| 4933 * is -1, this method is identical to | |
| 4934 * <code>ITextViewerExtension.setRedraw(bool)</code>. | |
| 4935 * | |
| 4936 * @see ITextViewerExtension#setRedraw(bool) | |
| 4937 * | |
| 4938 * @param redraw | |
| 4939 * @param topIndex | |
| 4940 * @since 3.0 | |
| 4941 */ | |
| 4942 protected final void setRedraw(bool redraw, int topIndex) { | |
| 4943 if (!redraw) { | |
| 4944 | |
| 4945 ++ fRedrawCounter; | |
| 4946 if (fRedrawCounter is 1) | |
| 4947 disableRedrawing(); | |
| 4948 | |
| 4949 } else { | |
| 4950 -- fRedrawCounter; | |
| 4951 if (fRedrawCounter is 0) { | |
| 4952 if (topIndex is -1) | |
| 4953 enabledRedrawing(); | |
| 4954 else | |
| 4955 enabledRedrawing(topIndex); | |
| 4956 } | |
| 4957 } | |
| 4958 } | |
| 4959 | |
| 4960 /** | |
| 4961 * Returns whether this viewer redraws itself. | |
| 4962 * | |
| 4963 * @return <code>true</code> if this viewer redraws itself | |
| 4964 * @since 2.0 | |
| 4965 */ | |
| 4966 protected final bool redraws() { | |
| 4967 return fRedrawCounter <= 0; | |
| 4968 } | |
| 4969 | |
| 4970 /** | |
| 4971 * Starts the sequential rewrite mode of the viewer's document. | |
| 4972 * | |
| 4973 * @param normalized <code>true</code> if the rewrite is performed from the start to the end of the document | |
| 4974 * @since 2.0 | |
| 4975 * @deprecated since 3.1 use {@link IDocumentExtension4#startRewriteSession(DocumentRewriteSessionType)} instead | |
| 4976 */ | |
| 4977 protected final void startSequentialRewriteMode(bool normalized) { | |
| 4978 IDocument document= getDocument(); | |
| 138 | 4979 if ( cast(IDocumentExtension)document ) { |
| 134 | 4980 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4981 extension.startSequentialRewrite(normalized); |
| 4982 } | |
| 4983 } | |
| 4984 | |
| 4985 /** | |
| 4986 * Sets the sequential rewrite mode of the viewer's document. | |
| 4987 * | |
| 4988 * @since 2.0 | |
| 4989 * @deprecated since 3.1 use {@link IDocumentExtension4#stopRewriteSession(DocumentRewriteSession)} instead | |
| 4990 */ | |
| 4991 protected final void stopSequentialRewriteMode() { | |
| 4992 IDocument document= getDocument(); | |
| 138 | 4993 if ( cast(IDocumentExtension)document ) { |
| 134 | 4994 IDocumentExtension extension= cast(IDocumentExtension) document; |
| 129 | 4995 extension.stopSequentialRewrite(); |
| 4996 } | |
| 4997 } | |
| 4998 | |
| 4999 /* | |
| 5000 * @see dwtx.jface.text.ITextViewerExtension#getRewriteTarget() | |
| 5001 * @since 2.0 | |
| 5002 */ | |
| 5003 public IRewriteTarget getRewriteTarget() { | |
| 5004 if (fRewriteTarget is null) | |
| 5005 fRewriteTarget= new RewriteTarget(); | |
| 5006 return fRewriteTarget; | |
| 5007 } | |
| 5008 | |
| 5009 /* | |
| 5010 * @see dwtx.jface.text.ITextViewerExtension2#getCurrentTextHover() | |
| 5011 */ | |
| 5012 public ITextHover getCurrentTextHover() { | |
| 5013 if (fTextHoverManager is null) | |
| 5014 return null; | |
| 162 | 5015 return fTextHoverManager.getCurrentTextHover_package(); |
| 129 | 5016 } |
| 5017 | |
| 5018 /* | |
| 5019 * @see dwtx.jface.text.ITextViewerExtension2#getHoverEventLocation() | |
| 5020 */ | |
| 5021 public Point getHoverEventLocation() { | |
| 5022 if (fTextHoverManager is null) | |
| 5023 return null; | |
| 162 | 5024 return fTextHoverManager.getHoverEventLocation_package(); |
| 129 | 5025 } |
| 5026 | |
| 5027 /** | |
| 5028 * Returns the paint manager of this viewer. | |
| 5029 * | |
| 5030 * @return the paint manager of this viewer | |
| 5031 * @since 2.1 | |
| 5032 */ | |
| 5033 protected PaintManager getPaintManager() { | |
| 5034 if (fPaintManager is null) | |
| 5035 fPaintManager= new PaintManager(this); | |
| 5036 return fPaintManager; | |
| 5037 } | |
| 5038 | |
| 5039 /** | |
| 5040 * Adds the given painter to this viewer. If the painter is already registered | |
| 5041 * this method is without effect. | |
| 5042 * | |
| 5043 * @param painter the painter to be added | |
| 5044 * @since 2.1 | |
| 5045 */ | |
| 5046 public void addPainter(IPainter painter) { | |
| 5047 getPaintManager().addPainter(painter); | |
| 5048 } | |
| 5049 | |
| 5050 /** | |
| 5051 * Removes the given painter from this viewer. If the painter has previously not been | |
| 5052 * added to this viewer this method is without effect. | |
| 5053 * | |
| 5054 * @param painter the painter to be removed | |
| 5055 * @since 2.1 | |
| 5056 */ | |
| 5057 public void removePainter(IPainter painter) { | |
| 5058 getPaintManager().removePainter(painter); | |
| 5059 } | |
| 5060 | |
| 5061 // ----------------------------------- conversions ------------------------------------------------------- | |
| 5062 | |
| 5063 /** | |
| 5064 * Implements the contract of {@link ITextViewerExtension5#modelLine2WidgetLine(int)}. | |
| 5065 * | |
| 5066 * @param modelLine the model line | |
| 5067 * @return the corresponding widget line or <code>-1</code> | |
| 5068 * @since 2.1 | |
| 5069 */ | |
| 5070 public int modelLine2WidgetLine(int modelLine) { | |
| 5071 if (fInformationMapping is null) | |
| 5072 return modelLine; | |
| 5073 | |
| 5074 try { | |
| 5075 return fInformationMapping.toImageLine(modelLine); | |
| 5076 } catch (BadLocationException x) { | |
| 5077 } | |
| 5078 | |
| 5079 return -1; | |
| 5080 } | |
| 5081 | |
| 5082 /** | |
| 5083 * Implements the contract of {@link ITextViewerExtension5#modelOffset2WidgetOffset(int)}. | |
| 5084 * | |
| 5085 * @param modelOffset the model offset | |
| 5086 * @return the corresponding widget offset or <code>-1</code> | |
| 5087 * @since 2.1 | |
| 5088 */ | |
| 5089 public int modelOffset2WidgetOffset(int modelOffset) { | |
| 5090 if (fInformationMapping is null) | |
| 5091 return modelOffset; | |
| 5092 | |
| 5093 try { | |
| 5094 return fInformationMapping.toImageOffset(modelOffset); | |
| 5095 } catch (BadLocationException x) { | |
| 5096 } | |
| 5097 | |
| 5098 return -1; | |
| 5099 } | |
| 5100 | |
| 5101 /** | |
| 5102 * Implements the contract of {@link ITextViewerExtension5#modelRange2WidgetRange(IRegion)}. | |
| 5103 * | |
| 5104 * @param modelRange the model range | |
| 5105 * @return the corresponding widget range or <code>null</code> | |
| 5106 * @since 2.1 | |
| 5107 */ | |
| 5108 public IRegion modelRange2WidgetRange(IRegion modelRange) { | |
| 5109 if (fInformationMapping is null) | |
| 5110 return modelRange; | |
| 5111 | |
| 5112 try { | |
| 5113 | |
| 5114 if (modelRange.getLength() < 0) { | |
| 5115 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 5116 IRegion result= fInformationMapping.toImageRegion(reversed); | |
| 5117 if (result !is null) | |
| 5118 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5119 } | |
| 5120 return fInformationMapping.toImageRegion(modelRange); | |
| 5121 | |
| 5122 } catch (BadLocationException x) { | |
| 5123 } | |
| 5124 | |
| 5125 return null; | |
| 5126 } | |
| 5127 | |
| 5128 /** | |
| 5129 * Similar to {@link #modelRange2WidgetRange(IRegion)}, but more forgiving: | |
| 5130 * if <code>modelRange</code> describes a region entirely hidden in the | |
| 5131 * image, then this method returns the zero-length region at the offset of | |
| 5132 * the folded region. | |
| 5133 * | |
| 5134 * @param modelRange the model range | |
| 5135 * @return the corresponding widget range, or <code>null</code> | |
| 5136 * @since 3.1 | |
| 5137 */ | |
| 5138 protected IRegion modelRange2ClosestWidgetRange(IRegion modelRange) { | |
| 138 | 5139 if (!( cast(IDocumentInformationMappingExtension2)fInformationMapping )) |
| 129 | 5140 return modelRange2WidgetRange(modelRange); |
| 5141 | |
| 5142 try { | |
| 5143 if (modelRange.getLength() < 0) { | |
| 5144 Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); | |
| 134 | 5145 IRegion result= (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(reversed); |
| 129 | 5146 if (result !is null) |
| 5147 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5148 } | |
| 134 | 5149 return (cast(IDocumentInformationMappingExtension2) fInformationMapping).toClosestImageRegion(modelRange); |
| 129 | 5150 |
| 5151 } catch (BadLocationException x) { | |
| 5152 } | |
| 5153 | |
| 5154 return null; | |
| 5155 } | |
| 5156 | |
| 5157 /** | |
| 5158 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5159 * | |
| 5160 * @param widgetLine the widget line | |
| 5161 * @return the corresponding model line | |
| 5162 * @since 2.1 | |
| 5163 */ | |
| 5164 public int widgetlLine2ModelLine(int widgetLine) { | |
| 5165 return widgetLine2ModelLine(widgetLine); | |
| 5166 } | |
| 5167 | |
| 5168 /** | |
| 5169 * Implements the contract of {@link ITextViewerExtension5#widgetLine2ModelLine(int)}. | |
| 5170 * | |
| 5171 * @param widgetLine the widget line | |
| 5172 * @return the corresponding model line or <code>-1</code> | |
| 5173 * @since 3.0 | |
| 5174 */ | |
| 5175 public int widgetLine2ModelLine(int widgetLine) { | |
| 5176 if (fInformationMapping is null) | |
| 5177 return widgetLine; | |
| 5178 | |
| 5179 try { | |
| 5180 return fInformationMapping.toOriginLine(widgetLine); | |
| 5181 } catch (BadLocationException x) { | |
| 5182 } | |
| 5183 | |
| 5184 return -1; | |
| 5185 } | |
| 5186 | |
| 5187 /** | |
| 5188 * Implements the contract of {@link ITextViewerExtension5#widgetOffset2ModelOffset(int)}. | |
| 5189 * | |
| 5190 * @param widgetOffset the widget offset | |
| 5191 * @return the corresponding model offset or <code>-1</code> | |
| 5192 * @since 2.1 | |
| 5193 */ | |
| 5194 public int widgetOffset2ModelOffset(int widgetOffset) { | |
| 5195 if (fInformationMapping is null) | |
| 5196 return widgetOffset; | |
| 5197 | |
| 5198 try { | |
| 5199 return fInformationMapping.toOriginOffset(widgetOffset); | |
| 5200 } catch (BadLocationException x) { | |
| 5201 if (widgetOffset is getVisibleDocument().getLength()) { | |
| 5202 IRegion coverage= fInformationMapping.getCoverage(); | |
| 5203 return coverage.getOffset() + coverage.getLength(); | |
| 5204 } | |
| 5205 } | |
| 5206 | |
| 5207 return -1; | |
| 5208 } | |
| 5209 | |
| 5210 /** | |
| 5211 * Implements the contract of {@link ITextViewerExtension5#widgetRange2ModelRange(IRegion)}. | |
| 5212 * | |
| 5213 * @param widgetRange the widget range | |
| 5214 * @return the corresponding model range or <code>null</code> | |
| 5215 * @since 2.1 | |
| 5216 */ | |
| 5217 public IRegion widgetRange2ModelRange(IRegion widgetRange) { | |
| 5218 if (fInformationMapping is null) | |
| 5219 return widgetRange; | |
| 5220 | |
| 5221 try { | |
| 5222 | |
| 5223 if (widgetRange.getLength() < 0) { | |
| 5224 Region reveresed= new Region(widgetRange.getOffset() + widgetRange.getLength(), -widgetRange.getLength()); | |
| 5225 IRegion result= fInformationMapping.toOriginRegion(reveresed); | |
| 5226 return new Region(result.getOffset() + result.getLength(), -result.getLength()); | |
| 5227 } | |
| 5228 | |
| 5229 return fInformationMapping.toOriginRegion(widgetRange); | |
| 5230 | |
| 5231 } catch (BadLocationException x) { | |
| 5232 int modelOffset= widgetOffset2ModelOffset(widgetRange.getOffset()); | |
| 5233 if (modelOffset > -1) { | |
| 5234 int modelEndOffset= widgetOffset2ModelOffset(widgetRange.getOffset() + widgetRange.getLength()); | |
| 5235 if (modelEndOffset > -1) | |
| 5236 return new Region(modelOffset, modelEndOffset - modelOffset); | |
| 5237 } | |
| 5238 } | |
| 5239 | |
| 5240 return null; | |
| 5241 } | |
| 5242 | |
| 5243 /** | |
| 5244 * Implements the contract of {@link ITextViewerExtension5#getModelCoverage()}. | |
| 5245 * | |
| 5246 * @return the model coverage | |
| 5247 * @since 2.1 | |
| 5248 */ | |
| 5249 public IRegion getModelCoverage() { | |
| 5250 if (fInformationMapping is null) { | |
| 5251 IDocument document= getDocument(); | |
| 5252 if (document is null) | |
| 5253 return null; | |
| 5254 return new Region(0, document.getLength()); | |
| 5255 } | |
| 5256 | |
| 5257 return fInformationMapping.getCoverage(); | |
| 5258 } | |
| 5259 | |
| 5260 /** | |
| 5261 * Returns the line of the widget whose corresponding line in the viewer's document | |
| 5262 * is closest to the given line in the viewer's document or <code>-1</code>. | |
| 5263 * | |
| 5264 * @param modelLine the line in the viewer's document | |
| 5265 * @return the line in the widget that corresponds best to the given line in the viewer's document or <code>-1</code> | |
| 5266 * @since 2.1 | |
| 5267 */ | |
| 5268 protected int getClosestWidgetLineForModelLine(int modelLine) { | |
| 5269 if (fInformationMapping is null) | |
| 5270 return modelLine; | |
| 5271 | |
| 5272 try { | |
| 5273 return fInformationMapping.toClosestImageLine(modelLine); | |
| 5274 } catch (BadLocationException x) { | |
| 5275 } | |
| 5276 | |
| 5277 return -1; | |
| 5278 } | |
| 5279 | |
| 5280 /** | |
| 5281 * Translates a style range given relative to the viewer's document into style | |
| 5282 * ranges relative to the viewer's widget or <code>null</code>. | |
| 5283 * | |
| 5284 * @param range the style range in the coordinates of the viewer's document | |
| 5285 * @return the style range in the coordinates of the viewer's widget or <code>null</code> | |
| 5286 * @since 2.1 | |
| 5287 */ | |
| 5288 protected StyleRange modelStyleRange2WidgetStyleRange(StyleRange range) { | |
| 5289 IRegion region= modelRange2WidgetRange(new Region(range.start, range.length)); | |
| 5290 if (region !is null) { | |
| 134 | 5291 StyleRange result= cast(StyleRange) range.clone(); |
| 129 | 5292 result.start= region.getOffset(); |
| 5293 result.length= region.getLength(); | |
| 5294 return result; | |
| 5295 } | |
| 5296 return null; | |
| 5297 } | |
| 5298 | |
| 5299 /** | |
| 5300 * Same as {@link #modelRange2WidgetRange(IRegion)} just for a {@link dwtx.jface.text.Position}. | |
| 5301 * | |
| 5302 * @param modelPosition the position describing a range in the viewer's document | |
| 5303 * @return a region describing a range in the viewer's widget | |
| 5304 * @since 2.1 | |
| 5305 */ | |
| 5306 protected IRegion modelRange2WidgetRange(Position modelPosition) { | |
| 5307 return modelRange2WidgetRange(new Region(modelPosition.getOffset(), modelPosition.getLength())); | |
| 5308 } | |
| 5309 | |
| 5310 /** | |
| 5311 * Translates the widget region of the given verify event into | |
| 5312 * the corresponding region of the viewer's document. | |
| 5313 * | |
| 5314 * @param event the verify event | |
| 5315 * @return the region of the viewer's document corresponding to the verify event | |
| 5316 * @since 2.1 | |
| 5317 */ | |
| 5318 protected IRegion event2ModelRange(VerifyEvent event) { | |
| 5319 | |
| 5320 Region region= null; | |
| 5321 if (event.start <= event.end) | |
| 5322 region= new Region(event.start, event.end - event.start); | |
| 5323 else | |
| 5324 region= new Region(event.end, event.start - event.end); | |
| 5325 | |
| 5326 return widgetRange2ModelRange(region); | |
| 5327 } | |
| 5328 | |
| 5329 /** | |
| 5330 * Translates the given widget selection into the corresponding region | |
| 5331 * of the viewer's document or returns <code>null</code> if this fails. | |
| 5332 * | |
| 5333 * @param widgetSelection the widget selection | |
| 5334 * @return the region of the viewer's document corresponding to the widget selection or <code>null</code> | |
| 5335 * @since 2.1 | |
| 5336 */ | |
| 5337 protected Point widgetSelection2ModelSelection(Point widgetSelection) { | |
| 5338 IRegion region= new Region(widgetSelection.x, widgetSelection.y); | |
| 5339 region= widgetRange2ModelRange(region); | |
| 5340 return region is null ? null : new Point(region.getOffset(), region.getLength()); | |
| 5341 } | |
| 5342 | |
| 5343 /** | |
| 5344 * Translates the given selection range of the viewer's document into | |
| 5345 * the corresponding widget range or returns <code>null</code> of this fails. | |
| 5346 * | |
| 5347 * @param modelSelection the selection range of the viewer's document | |
| 5348 * @return the widget range corresponding to the selection range or <code>null</code> | |
| 5349 * @since 2.1 | |
| 5350 */ | |
| 5351 protected Point modelSelection2WidgetSelection(Point modelSelection) { | |
| 5352 if (fInformationMapping is null) | |
| 5353 return modelSelection; | |
| 5354 | |
| 5355 try { | |
| 5356 IRegion region= new Region(modelSelection.x, modelSelection.y); | |
| 5357 region= fInformationMapping.toImageRegion(region); | |
| 5358 if (region !is null) | |
| 5359 return new Point(region.getOffset(), region.getLength()); | |
| 5360 } catch (BadLocationException x) { | |
| 5361 } | |
| 5362 | |
| 5363 return null; | |
| 5364 } | |
| 5365 | |
| 5366 /** | |
| 5367 * Implements the contract of {@link ITextViewerExtension5#widgetLineOfWidgetOffset(int)}. | |
| 5368 * | |
| 5369 * @param widgetOffset the widget offset | |
| 5370 * @return the corresponding widget line or <code>-1</code> | |
| 5371 * @since 2.1 | |
| 5372 */ | |
| 5373 public int widgetLineOfWidgetOffset(int widgetOffset) { | |
| 5374 IDocument document= getVisibleDocument(); | |
| 5375 if (document !is null) { | |
| 5376 try { | |
| 5377 return document.getLineOfOffset(widgetOffset); | |
| 5378 } catch (BadLocationException e) { | |
| 5379 } | |
| 5380 } | |
| 5381 return -1; | |
| 5382 } | |
| 5383 | |
| 5384 /* | |
| 5385 * @see dwtx.jface.text.ITextViewerExtension4#moveFocusToWidgetToken() | |
| 5386 * @since 3.0 | |
| 5387 */ | |
| 5388 public bool moveFocusToWidgetToken() { | |
| 138 | 5389 if ( cast(IWidgetTokenKeeperExtension)fWidgetTokenKeeper ) { |
| 134 | 5390 IWidgetTokenKeeperExtension extension= cast(IWidgetTokenKeeperExtension) fWidgetTokenKeeper; |
| 129 | 5391 return extension.setFocus(this); |
| 5392 } | |
| 5393 return false; | |
| 5394 } | |
| 5395 | |
| 5396 /** | |
| 5397 * Sets the document partitioning of this viewer. The partitioning is used by this viewer to | |
| 5398 * access partitioning information of the viewers input document. | |
| 5399 * | |
| 5400 * @param partitioning the partitioning name | |
| 5401 * @since 3.0 | |
| 5402 */ | |
| 5403 public void setDocumentPartitioning(String partitioning) { | |
| 5404 fPartitioning= partitioning; | |
| 5405 } | |
| 5406 | |
| 5407 /** | |
| 5408 * Returns the document partitioning for this viewer. | |
| 5409 * | |
| 5410 * @return the document partitioning for this viewer | |
| 5411 * @since 3.0 | |
| 5412 */ | |
| 5413 protected String getDocumentPartitioning() { | |
| 5414 return fPartitioning; | |
| 5415 } | |
| 5416 | |
| 5417 //---- Text presentation listeners ---- | |
| 5418 | |
| 5419 /* | |
| 5420 * @see ITextViewerExtension4#addTextPresentationListener(ITextPresentationListener) | |
| 5421 * @since 3.0 | |
| 5422 */ | |
| 5423 public void addTextPresentationListener(ITextPresentationListener listener) { | |
| 5424 | |
| 162 | 5425 Assert.isNotNull(cast(Object)listener); |
| 129 | 5426 |
| 5427 if (fTextPresentationListeners is null) | |
| 5428 fTextPresentationListeners= new ArrayList(); | |
| 5429 | |
| 162 | 5430 if (!fTextPresentationListeners.contains(cast(Object)listener)) |
| 5431 fTextPresentationListeners.add(cast(Object)listener); | |
| 129 | 5432 } |
| 5433 | |
| 5434 /* | |
| 5435 * @see ITextViewerExtension4#removeTextPresentationListener(ITextPresentationListener) | |
| 5436 * @since 3.0 | |
| 5437 */ | |
| 5438 public void removeTextPresentationListener(ITextPresentationListener listener) { | |
| 5439 | |
| 162 | 5440 Assert.isNotNull(cast(Object)listener); |
| 129 | 5441 |
| 5442 if (fTextPresentationListeners !is null) { | |
| 162 | 5443 fTextPresentationListeners.remove(cast(Object)listener); |
| 129 | 5444 if (fTextPresentationListeners.size() is 0) |
| 5445 fTextPresentationListeners= null; | |
| 5446 } | |
| 5447 } | |
| 5448 | |
| 5449 /* | |
| 5450 * @see dwtx.jface.text.IEditingSupportRegistry#registerHelper(dwtx.jface.text.IEditingSupport) | |
| 5451 * @since 3.1 | |
| 5452 */ | |
| 5453 public void register(IEditingSupport helper) { | |
| 5454 Assert.isLegal(helper !is null); | |
| 162 | 5455 fEditorHelpers.add(cast(Object)helper); |
| 129 | 5456 } |
| 5457 | |
| 5458 /* | |
| 5459 * @see dwtx.jface.text.IEditingSupportRegistry#deregisterHelper(dwtx.jface.text.IEditingSupport) | |
| 5460 * @since 3.1 | |
| 5461 */ | |
| 5462 public void unregister(IEditingSupport helper) { | |
| 162 | 5463 fEditorHelpers.remove(cast(Object)helper); |
| 129 | 5464 } |
| 5465 | |
| 5466 /* | |
| 5467 * @see dwtx.jface.text.IEditingSupportRegistry#getCurrentHelpers() | |
| 5468 * @since 3.1 | |
| 5469 */ | |
| 5470 public IEditingSupport[] getRegisteredSupports() { | |
| 156 | 5471 return arraycast!(IEditingSupport)( fEditorHelpers.toArray()); |
| 129 | 5472 } |
| 5473 | |
| 5474 /* | |
| 5475 * @see dwtx.jface.text.ITextViewerExtension6#setHyperlinkDetectors(dwtx.jface.text.hyperlink.IHyperlinkDetector[], int) | |
| 5476 * @since 3.1 | |
| 5477 */ | |
| 5478 public void setHyperlinkDetectors(IHyperlinkDetector[] hyperlinkDetectors, int eventStateMask) { | |
| 5479 if (fHyperlinkDetectors !is null) { | |
| 5480 for (int i= 0; i < fHyperlinkDetectors.length; i++) { | |
|
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5481 if (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i] ) |
| 134 | 5482 (cast(IHyperlinkDetectorExtension)fHyperlinkDetectors[i]).dispose(); |
| 129 | 5483 } |
| 5484 } | |
|
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|
5485 |
| 129 | 5486 bool enable= hyperlinkDetectors !is null && hyperlinkDetectors.length > 0; |
| 5487 fHyperlinkStateMask= eventStateMask; | |
| 5488 fHyperlinkDetectors= hyperlinkDetectors; | |
| 5489 if (enable) { | |
| 5490 if (fHyperlinkManager !is null) { | |
| 5491 fHyperlinkManager.setHyperlinkDetectors(fHyperlinkDetectors); | |
| 5492 fHyperlinkManager.setHyperlinkStateMask(fHyperlinkStateMask); | |
| 5493 } | |
| 5494 ensureHyperlinkManagerInstalled(); | |
| 5495 } else { | |
| 5496 if (fHyperlinkManager !is null) | |
| 5497 fHyperlinkManager.uninstall(); | |
| 5498 fHyperlinkManager= null; | |
| 5499 } | |
| 5500 } | |
| 5501 | |
| 5502 /** | |
| 5503 * Sets the hyperlink presenter. | |
| 5504 * <p> | |
| 5505 * This is only valid as long as the hyperlink manager hasn't | |
| 5506 * been created yet. | |
| 5507 * </p> | |
| 5508 * | |
| 5509 * @param hyperlinkPresenter the hyperlink presenter | |
| 5510 * @throws IllegalStateException if the hyperlink manager has already been created | |
| 5511 * @since 3.1 | |
| 5512 */ | |
|
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5513 public void setHyperlinkPresenter(IHyperlinkPresenter hyperlinkPresenter) { |
| 129 | 5514 if (fHyperlinkManager !is null) |
| 5515 throw new IllegalStateException(); | |
| 5516 | |
| 5517 fHyperlinkPresenter= hyperlinkPresenter; | |
| 5518 ensureHyperlinkManagerInstalled(); | |
| 5519 } | |
| 5520 | |
| 5521 /** | |
| 5522 * Ensures that the hyperlink manager has been | |
| 5523 * installed if a hyperlink detector is available. | |
| 5524 * | |
| 5525 * @since 3.1 | |
| 5526 */ | |
| 5527 private void ensureHyperlinkManagerInstalled() { | |
| 5528 if (fHyperlinkDetectors !is null && fHyperlinkDetectors.length > 0 && fHyperlinkPresenter !is null && fHyperlinkManager is null) { | |
| 159 | 5529 HyperlinkManager.DETECTION_STRATEGY strategy= fHyperlinkPresenter.canShowMultipleHyperlinks() ? HyperlinkManager.ALL : HyperlinkManager.FIRST; |
| 129 | 5530 fHyperlinkManager= new HyperlinkManager(strategy); |
| 5531 fHyperlinkManager.install(this, fHyperlinkPresenter, fHyperlinkDetectors, fHyperlinkStateMask); | |
| 5532 } | |
| 5533 } | |
| 5534 | |
| 5535 /* | |
| 5536 * @see dwtx.jface.text.ITextViewerExtension7#setTabsToSpacesConverter(dwtx.jface.text.IAutoEditStrategy) | |
| 5537 * @since 3.3 | |
| 5538 */ | |
| 5539 public void setTabsToSpacesConverter(IAutoEditStrategy converter) { | |
| 5540 fTabsToSpacesConverter= converter; | |
| 5541 } | |
| 5542 | |
| 5543 } |