Mercurial > projects > dwt2
comparison org.eclipse.jface.text/src/org/eclipse/jface/text/source/VerticalRuler.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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11:43904fec5dca | 12:bc29606a740c |
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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 org.eclipse.jface.text.source.VerticalRuler; | |
14 | |
15 import org.eclipse.jface.text.source.ISharedTextColors; // packageimport | |
16 import org.eclipse.jface.text.source.ILineRange; // packageimport | |
17 import org.eclipse.jface.text.source.IAnnotationPresentation; // packageimport | |
18 import org.eclipse.jface.text.source.IVerticalRulerInfoExtension; // packageimport | |
19 import org.eclipse.jface.text.source.ICharacterPairMatcher; // packageimport | |
20 import org.eclipse.jface.text.source.TextInvocationContext; // packageimport | |
21 import org.eclipse.jface.text.source.LineChangeHover; // packageimport | |
22 import org.eclipse.jface.text.source.IChangeRulerColumn; // packageimport | |
23 import org.eclipse.jface.text.source.IAnnotationMap; // packageimport | |
24 import org.eclipse.jface.text.source.IAnnotationModelListenerExtension; // packageimport | |
25 import org.eclipse.jface.text.source.ISourceViewerExtension2; // packageimport | |
26 import org.eclipse.jface.text.source.IAnnotationHover; // packageimport | |
27 import org.eclipse.jface.text.source.ContentAssistantFacade; // packageimport | |
28 import org.eclipse.jface.text.source.IAnnotationAccess; // packageimport | |
29 import org.eclipse.jface.text.source.IVerticalRulerExtension; // packageimport | |
30 import org.eclipse.jface.text.source.IVerticalRulerColumn; // packageimport | |
31 import org.eclipse.jface.text.source.LineNumberRulerColumn; // packageimport | |
32 import org.eclipse.jface.text.source.MatchingCharacterPainter; // packageimport | |
33 import org.eclipse.jface.text.source.IAnnotationModelExtension; // packageimport | |
34 import org.eclipse.jface.text.source.ILineDifferExtension; // packageimport | |
35 import org.eclipse.jface.text.source.DefaultCharacterPairMatcher; // packageimport | |
36 import org.eclipse.jface.text.source.LineNumberChangeRulerColumn; // packageimport | |
37 import org.eclipse.jface.text.source.IAnnotationAccessExtension; // packageimport | |
38 import org.eclipse.jface.text.source.ISourceViewer; // packageimport | |
39 import org.eclipse.jface.text.source.AnnotationModel; // packageimport | |
40 import org.eclipse.jface.text.source.ILineDifferExtension2; // packageimport | |
41 import org.eclipse.jface.text.source.IAnnotationModelListener; // packageimport | |
42 import org.eclipse.jface.text.source.IVerticalRuler; // packageimport | |
43 import org.eclipse.jface.text.source.DefaultAnnotationHover; // packageimport | |
44 import org.eclipse.jface.text.source.SourceViewer; // packageimport | |
45 import org.eclipse.jface.text.source.SourceViewerConfiguration; // packageimport | |
46 import org.eclipse.jface.text.source.AnnotationBarHoverManager; // packageimport | |
47 import org.eclipse.jface.text.source.CompositeRuler; // packageimport | |
48 import org.eclipse.jface.text.source.ImageUtilities; // packageimport | |
49 import org.eclipse.jface.text.source.VisualAnnotationModel; // packageimport | |
50 import org.eclipse.jface.text.source.IAnnotationModel; // packageimport | |
51 import org.eclipse.jface.text.source.ISourceViewerExtension3; // packageimport | |
52 import org.eclipse.jface.text.source.ILineDiffInfo; // packageimport | |
53 import org.eclipse.jface.text.source.VerticalRulerEvent; // packageimport | |
54 import org.eclipse.jface.text.source.ChangeRulerColumn; // packageimport | |
55 import org.eclipse.jface.text.source.ILineDiffer; // packageimport | |
56 import org.eclipse.jface.text.source.AnnotationModelEvent; // packageimport | |
57 import org.eclipse.jface.text.source.AnnotationColumn; // packageimport | |
58 import org.eclipse.jface.text.source.AnnotationRulerColumn; // packageimport | |
59 import org.eclipse.jface.text.source.IAnnotationHoverExtension; // packageimport | |
60 import org.eclipse.jface.text.source.AbstractRulerColumn; // packageimport | |
61 import org.eclipse.jface.text.source.ISourceViewerExtension; // packageimport | |
62 import org.eclipse.jface.text.source.AnnotationMap; // packageimport | |
63 import org.eclipse.jface.text.source.IVerticalRulerInfo; // packageimport | |
64 import org.eclipse.jface.text.source.IAnnotationModelExtension2; // packageimport | |
65 import org.eclipse.jface.text.source.LineRange; // packageimport | |
66 import org.eclipse.jface.text.source.IAnnotationAccessExtension2; // packageimport | |
67 import org.eclipse.jface.text.source.JFaceTextMessages; // packageimport | |
68 import org.eclipse.jface.text.source.IOverviewRuler; // packageimport | |
69 import org.eclipse.jface.text.source.Annotation; // packageimport | |
70 import org.eclipse.jface.text.source.IVerticalRulerListener; // packageimport | |
71 import org.eclipse.jface.text.source.ISourceViewerExtension4; // packageimport | |
72 import org.eclipse.jface.text.source.AnnotationPainter; // packageimport | |
73 import org.eclipse.jface.text.source.IAnnotationHoverExtension2; // packageimport | |
74 import org.eclipse.jface.text.source.OverviewRuler; // packageimport | |
75 import org.eclipse.jface.text.source.OverviewRulerHoverManager; // packageimport | |
76 | |
77 | |
78 import java.lang.all; | |
79 import java.util.Iterator; | |
80 import java.util.Set; | |
81 | |
82 | |
83 | |
84 import org.eclipse.swt.SWT; | |
85 import org.eclipse.swt.custom.StyledText; | |
86 import org.eclipse.swt.events.DisposeEvent; | |
87 import org.eclipse.swt.events.DisposeListener; | |
88 import org.eclipse.swt.events.MouseEvent; | |
89 import org.eclipse.swt.events.MouseListener; | |
90 import org.eclipse.swt.events.PaintEvent; | |
91 import org.eclipse.swt.events.PaintListener; | |
92 import org.eclipse.swt.graphics.Font; | |
93 import org.eclipse.swt.graphics.GC; | |
94 import org.eclipse.swt.graphics.Image; | |
95 import org.eclipse.swt.graphics.Point; | |
96 import org.eclipse.swt.graphics.Rectangle; | |
97 import org.eclipse.swt.widgets.Canvas; | |
98 import org.eclipse.swt.widgets.Composite; | |
99 import org.eclipse.swt.widgets.Control; | |
100 import org.eclipse.swt.widgets.Display; | |
101 import org.eclipse.jface.text.BadLocationException; | |
102 import org.eclipse.jface.text.IDocument; | |
103 import org.eclipse.jface.text.IRegion; | |
104 import org.eclipse.jface.text.ITextListener; | |
105 import org.eclipse.jface.text.ITextViewer; | |
106 import org.eclipse.jface.text.ITextViewerExtension5; | |
107 import org.eclipse.jface.text.IViewportListener; | |
108 import org.eclipse.jface.text.JFaceTextUtil; | |
109 import org.eclipse.jface.text.Position; | |
110 import org.eclipse.jface.text.Region; | |
111 import org.eclipse.jface.text.TextEvent; | |
112 | |
113 | |
114 /** | |
115 * A vertical ruler which is connected to a text viewer. Single column standard | |
116 * implementation of {@link org.eclipse.jface.text.source.IVerticalRuler}. | |
117 * <p> | |
118 * The same can be achieved by using <code>CompositeRuler</code> configured | |
119 * with an <code>AnnotationRulerColumn</code>. Clients may use this class as | |
120 * is. | |
121 * | |
122 * @see org.eclipse.jface.text.ITextViewer | |
123 */ | |
124 public final class VerticalRuler : IVerticalRuler, IVerticalRulerExtension { | |
125 | |
126 /** | |
127 * Internal listener class. | |
128 */ | |
129 class InternalListener : IViewportListener, IAnnotationModelListener, ITextListener { | |
130 | |
131 /* | |
132 * @see IViewportListener#viewportChanged(int) | |
133 */ | |
134 public void viewportChanged(int verticalPosition) { | |
135 if (verticalPosition !is fScrollPos) | |
136 redraw(); | |
137 } | |
138 | |
139 /* | |
140 * @see IAnnotationModelListener#modelChanged(IAnnotationModel) | |
141 */ | |
142 public void modelChanged(IAnnotationModel model) { | |
143 update(); | |
144 } | |
145 | |
146 /* | |
147 * @see ITextListener#textChanged(TextEvent) | |
148 */ | |
149 public void textChanged(TextEvent e) { | |
150 if (fTextViewer !is null && e.getViewerRedrawState()) | |
151 redraw(); | |
152 } | |
153 } | |
154 | |
155 /** The vertical ruler's text viewer */ | |
156 private ITextViewer fTextViewer; | |
157 /** The ruler's canvas */ | |
158 private Canvas fCanvas; | |
159 /** The vertical ruler's model */ | |
160 private IAnnotationModel fModel; | |
161 /** Cache for the actual scroll position in pixels */ | |
162 private int fScrollPos; | |
163 /** The buffer for double buffering */ | |
164 private Image fBuffer; | |
165 /** The line of the last mouse button activity */ | |
166 private int fLastMouseButtonActivityLine= -1; | |
167 /** The internal listener */ | |
168 private InternalListener fInternalListener; | |
169 /** The width of this vertical ruler */ | |
170 private int fWidth; | |
171 /** | |
172 * The annotation access of this vertical ruler | |
173 * @since 3.0 | |
174 */ | |
175 private IAnnotationAccess fAnnotationAccess; | |
176 | |
177 /** | |
178 * Constructs a vertical ruler with the given width. | |
179 * | |
180 * @param width the width of the vertical ruler | |
181 */ | |
182 public this(int width) { | |
183 this(width, null); | |
184 } | |
185 | |
186 /** | |
187 * Constructs a vertical ruler with the given width and the given annotation | |
188 * access. | |
189 * | |
190 * @param width the width of the vertical ruler | |
191 * @param annotationAcccess the annotation access | |
192 * @since 3.0 | |
193 */ | |
194 public this(int width, IAnnotationAccess annotationAcccess) { | |
195 | |
196 fInternalListener= new InternalListener(); | |
197 | |
198 fWidth= width; | |
199 fAnnotationAccess= annotationAcccess; | |
200 } | |
201 | |
202 /* | |
203 * @see IVerticalRuler#getControl() | |
204 */ | |
205 public Control getControl() { | |
206 return fCanvas; | |
207 } | |
208 | |
209 /* | |
210 * @see IVerticalRuler#createControl(Composite, ITextViewer) | |
211 */ | |
212 public Control createControl(Composite parent, ITextViewer textViewer) { | |
213 | |
214 fTextViewer= textViewer; | |
215 | |
216 fCanvas= new Canvas(parent, SWT.NO_BACKGROUND); | |
217 | |
218 fCanvas.addPaintListener(new class() PaintListener { | |
219 public void paintControl(PaintEvent event) { | |
220 if (fTextViewer !is null) | |
221 doubleBufferPaint(event.gc); | |
222 } | |
223 }); | |
224 | |
225 fCanvas.addDisposeListener(new class() DisposeListener { | |
226 public void widgetDisposed(DisposeEvent e) { | |
227 handleDispose(); | |
228 fTextViewer= null; | |
229 } | |
230 }); | |
231 | |
232 fCanvas.addMouseListener(new class() MouseListener { | |
233 public void mouseUp(MouseEvent event) { | |
234 } | |
235 | |
236 public void mouseDown(MouseEvent event) { | |
237 fLastMouseButtonActivityLine= toDocumentLineNumber(event.y); | |
238 } | |
239 | |
240 public void mouseDoubleClick(MouseEvent event) { | |
241 fLastMouseButtonActivityLine= toDocumentLineNumber(event.y); | |
242 } | |
243 }); | |
244 | |
245 if (fTextViewer !is null) { | |
246 fTextViewer.addViewportListener(fInternalListener); | |
247 fTextViewer.addTextListener(fInternalListener); | |
248 } | |
249 | |
250 return fCanvas; | |
251 } | |
252 | |
253 /** | |
254 * Disposes the ruler's resources. | |
255 */ | |
256 private void handleDispose() { | |
257 | |
258 if (fTextViewer !is null) { | |
259 fTextViewer.removeViewportListener(fInternalListener); | |
260 fTextViewer.removeTextListener(fInternalListener); | |
261 fTextViewer= null; | |
262 } | |
263 | |
264 if (fModel !is null) | |
265 fModel.removeAnnotationModelListener(fInternalListener); | |
266 | |
267 if (fBuffer !is null) { | |
268 fBuffer.dispose(); | |
269 fBuffer= null; | |
270 } | |
271 } | |
272 | |
273 | |
274 /** | |
275 * Double buffer drawing. | |
276 * | |
277 * @param dest the GC to draw into | |
278 */ | |
279 private void doubleBufferPaint(GC dest) { | |
280 | |
281 Point size= fCanvas.getSize(); | |
282 | |
283 if (size.x <= 0 || size.y <= 0) | |
284 return; | |
285 | |
286 if (fBuffer !is null) { | |
287 Rectangle r= fBuffer.getBounds(); | |
288 if (r.width !is size.x || r.height !is size.y) { | |
289 fBuffer.dispose(); | |
290 fBuffer= null; | |
291 } | |
292 } | |
293 if (fBuffer is null) | |
294 fBuffer= new Image(fCanvas.getDisplay(), size.x, size.y); | |
295 | |
296 GC gc= new GC(fBuffer); | |
297 gc.setFont(fTextViewer.getTextWidget().getFont()); | |
298 try { | |
299 gc.setBackground(fCanvas.getBackground()); | |
300 gc.fillRectangle(0, 0, size.x, size.y); | |
301 | |
302 if ( cast(ITextViewerExtension5)fTextViewer ) | |
303 doPaint1(gc); | |
304 else | |
305 doPaint(gc); | |
306 | |
307 } finally { | |
308 gc.dispose(); | |
309 } | |
310 | |
311 dest.drawImage(fBuffer, 0, 0); | |
312 } | |
313 | |
314 /** | |
315 * Returns the document offset of the upper left corner of the | |
316 * widgets view port, possibly including partially visible lines. | |
317 * | |
318 * @return the document offset of the upper left corner including partially visible lines | |
319 * @since 2.0 | |
320 */ | |
321 private int getInclusiveTopIndexStartOffset() { | |
322 | |
323 StyledText textWidget= fTextViewer.getTextWidget(); | |
324 if (textWidget !is null && !textWidget.isDisposed()) { | |
325 int top= JFaceTextUtil.getPartialTopIndex(fTextViewer); | |
326 try { | |
327 IDocument document= fTextViewer.getDocument(); | |
328 return document.getLineOffset(top); | |
329 } catch (BadLocationException x) { | |
330 } | |
331 } | |
332 | |
333 return -1; | |
334 } | |
335 | |
336 | |
337 | |
338 /** | |
339 * Draws the vertical ruler w/o drawing the Canvas background. | |
340 * | |
341 * @param gc the GC to draw into | |
342 */ | |
343 protected void doPaint(GC gc) { | |
344 | |
345 if (fModel is null || fTextViewer is null) | |
346 return; | |
347 | |
348 IAnnotationAccessExtension annotationAccessExtension= null; | |
349 if ( cast(IAnnotationAccessExtension)fAnnotationAccess ) | |
350 annotationAccessExtension= cast(IAnnotationAccessExtension) fAnnotationAccess; | |
351 | |
352 StyledText styledText= fTextViewer.getTextWidget(); | |
353 IDocument doc= fTextViewer.getDocument(); | |
354 | |
355 int topLeft= getInclusiveTopIndexStartOffset(); | |
356 int bottomRight= fTextViewer.getBottomIndexEndOffset(); | |
357 int viewPort= bottomRight - topLeft; | |
358 | |
359 Point d= fCanvas.getSize(); | |
360 fScrollPos= styledText.getTopPixel(); | |
361 | |
362 int topLine= -1, bottomLine= -1; | |
363 try { | |
364 IRegion region= fTextViewer.getVisibleRegion(); | |
365 topLine= doc.getLineOfOffset(region.getOffset()); | |
366 bottomLine= doc.getLineOfOffset(region.getOffset() + region.getLength()); | |
367 } catch (BadLocationException x) { | |
368 return; | |
369 } | |
370 | |
371 // draw Annotations | |
372 Rectangle r= new Rectangle(0, 0, 0, 0); | |
373 int maxLayer= 1; // loop at least once though layers. | |
374 | |
375 for (int layer= 0; layer < maxLayer; layer++) { | |
376 Iterator iter= fModel.getAnnotationIterator(); | |
377 while (iter.hasNext()) { | |
378 IAnnotationPresentation annotationPresentation= null; | |
379 Annotation annotation= cast(Annotation) iter.next(); | |
380 | |
381 int lay= IAnnotationAccessExtension.DEFAULT_LAYER; | |
382 if (annotationAccessExtension !is null) | |
383 lay= annotationAccessExtension.getLayer(annotation); | |
384 else if ( cast(IAnnotationPresentation)annotation ) { | |
385 annotationPresentation= cast(IAnnotationPresentation)annotation; | |
386 lay= annotationPresentation.getLayer(); | |
387 } | |
388 maxLayer= Math.max(maxLayer, lay+1); // dynamically update layer maximum | |
389 if (lay !is layer) // wrong layer: skip annotation | |
390 continue; | |
391 | |
392 Position position= fModel.getPosition(annotation); | |
393 if (position is null) | |
394 continue; | |
395 | |
396 if (!position.overlapsWith(topLeft, viewPort)) | |
397 continue; | |
398 | |
399 try { | |
400 | |
401 int offset= position.getOffset(); | |
402 int length= position.getLength(); | |
403 | |
404 int startLine= doc.getLineOfOffset(offset); | |
405 if (startLine < topLine) | |
406 startLine= topLine; | |
407 | |
408 int endLine= startLine; | |
409 if (length > 0) | |
410 endLine= doc.getLineOfOffset(offset + length - 1); | |
411 if (endLine > bottomLine) | |
412 endLine= bottomLine; | |
413 | |
414 startLine -= topLine; | |
415 endLine -= topLine; | |
416 | |
417 r.x= 0; | |
418 r.y= JFaceTextUtil.computeLineHeight(styledText, 0, startLine, startLine) - fScrollPos; | |
419 | |
420 r.width= d.x; | |
421 int lines= endLine - startLine; | |
422 | |
423 r.height= JFaceTextUtil.computeLineHeight(styledText, startLine, endLine + 1, (lines+1)); | |
424 | |
425 if (r.y < d.y && annotationAccessExtension !is null) // annotation within visible area | |
426 annotationAccessExtension.paint(annotation, gc, fCanvas, r); | |
427 else if (annotationPresentation !is null) | |
428 annotationPresentation.paint(gc, fCanvas, r); | |
429 | |
430 } catch (BadLocationException e) { | |
431 } | |
432 } | |
433 } | |
434 } | |
435 | |
436 /** | |
437 * Draws the vertical ruler w/o drawing the Canvas background. Uses | |
438 * <code>ITextViewerExtension5</code> for its implementation. Will replace | |
439 * <code>doPaint(GC)</code>. | |
440 * | |
441 * @param gc the GC to draw into | |
442 */ | |
443 protected void doPaint1(GC gc) { | |
444 | |
445 if (fModel is null || fTextViewer is null) | |
446 return; | |
447 | |
448 IAnnotationAccessExtension annotationAccessExtension= null; | |
449 if ( cast(IAnnotationAccessExtension)fAnnotationAccess ) | |
450 annotationAccessExtension= cast(IAnnotationAccessExtension) fAnnotationAccess; | |
451 | |
452 ITextViewerExtension5 extension= cast(ITextViewerExtension5) fTextViewer; | |
453 StyledText textWidget= fTextViewer.getTextWidget(); | |
454 | |
455 fScrollPos= textWidget.getTopPixel(); | |
456 Point dimension= fCanvas.getSize(); | |
457 | |
458 // draw Annotations | |
459 Rectangle r= new Rectangle(0, 0, 0, 0); | |
460 int maxLayer= 1; // loop at least once through layers. | |
461 | |
462 for (int layer= 0; layer < maxLayer; layer++) { | |
463 Iterator iter= fModel.getAnnotationIterator(); | |
464 while (iter.hasNext()) { | |
465 IAnnotationPresentation annotationPresentation= null; | |
466 Annotation annotation= cast(Annotation) iter.next(); | |
467 | |
468 int lay= IAnnotationAccessExtension.DEFAULT_LAYER; | |
469 if (annotationAccessExtension !is null) | |
470 lay= annotationAccessExtension.getLayer(annotation); | |
471 else if ( cast(IAnnotationPresentation)annotation ) { | |
472 annotationPresentation= cast(IAnnotationPresentation)annotation; | |
473 lay= annotationPresentation.getLayer(); | |
474 } | |
475 maxLayer= Math.max(maxLayer, lay+1); // dynamically update layer maximum | |
476 if (lay !is layer) // wrong layer: skip annotation | |
477 continue; | |
478 | |
479 Position position= fModel.getPosition(annotation); | |
480 if (position is null) | |
481 continue; | |
482 | |
483 IRegion widgetRegion= extension.modelRange2WidgetRange(new Region(position.getOffset(), position.getLength())); | |
484 if (widgetRegion is null) | |
485 continue; | |
486 | |
487 int startLine= extension.widgetLineOfWidgetOffset(widgetRegion.getOffset()); | |
488 if (startLine is -1) | |
489 continue; | |
490 | |
491 int endLine= extension.widgetLineOfWidgetOffset(widgetRegion.getOffset() + Math.max(widgetRegion.getLength() -1, 0)); | |
492 if (endLine is -1) | |
493 continue; | |
494 | |
495 r.x= 0; | |
496 r.y= JFaceTextUtil.computeLineHeight(textWidget, 0, startLine, startLine) - fScrollPos; | |
497 | |
498 r.width= dimension.x; | |
499 int lines= endLine - startLine; | |
500 | |
501 r.height= JFaceTextUtil.computeLineHeight(textWidget, startLine, endLine + 1, lines+1); | |
502 | |
503 if (r.y < dimension.y && annotationAccessExtension !is null) // annotation within visible area | |
504 annotationAccessExtension.paint(annotation, gc, fCanvas, r); | |
505 else if (annotationPresentation !is null) | |
506 annotationPresentation.paint(gc, fCanvas, r); | |
507 } | |
508 } | |
509 } | |
510 | |
511 /** | |
512 * Thread-safe implementation. | |
513 * Can be called from any thread. | |
514 */ | |
515 /* | |
516 * @see IVerticalRuler#update() | |
517 */ | |
518 public void update() { | |
519 if (fCanvas !is null && !fCanvas.isDisposed()) { | |
520 Display d= fCanvas.getDisplay(); | |
521 if (d !is null) { | |
522 d.asyncExec(new class() Runnable { | |
523 public void run() { | |
524 redraw(); | |
525 } | |
526 }); | |
527 } | |
528 } | |
529 } | |
530 | |
531 /** | |
532 * Redraws the vertical ruler. | |
533 */ | |
534 private void redraw() { | |
535 if (fCanvas !is null && !fCanvas.isDisposed()) { | |
536 GC gc= new GC(fCanvas); | |
537 doubleBufferPaint(gc); | |
538 gc.dispose(); | |
539 } | |
540 } | |
541 | |
542 /* | |
543 * @see IVerticalRuler#setModel(IAnnotationModel) | |
544 */ | |
545 public void setModel(IAnnotationModel model) { | |
546 if (model !is fModel) { | |
547 | |
548 if (fModel !is null) | |
549 fModel.removeAnnotationModelListener(fInternalListener); | |
550 | |
551 fModel= model; | |
552 | |
553 if (fModel !is null) | |
554 fModel.addAnnotationModelListener(fInternalListener); | |
555 | |
556 update(); | |
557 } | |
558 } | |
559 | |
560 /* | |
561 * @see IVerticalRuler#getModel() | |
562 */ | |
563 public IAnnotationModel getModel() { | |
564 return fModel; | |
565 } | |
566 | |
567 /* | |
568 * @see IVerticalRulerInfo#getWidth() | |
569 */ | |
570 public int getWidth() { | |
571 return fWidth; | |
572 } | |
573 | |
574 /* | |
575 * @see IVerticalRulerInfo#getLineOfLastMouseButtonActivity() | |
576 */ | |
577 public int getLineOfLastMouseButtonActivity() { | |
578 IDocument doc= fTextViewer.getDocument(); | |
579 if (doc is null || fLastMouseButtonActivityLine >= fTextViewer.getDocument().getNumberOfLines()) | |
580 fLastMouseButtonActivityLine= -1; | |
581 return fLastMouseButtonActivityLine; | |
582 } | |
583 | |
584 /* | |
585 * @see IVerticalRulerInfo#toDocumentLineNumber(int) | |
586 */ | |
587 public int toDocumentLineNumber(int y_coordinate) { | |
588 if (fTextViewer is null || y_coordinate is -1) | |
589 return -1; | |
590 | |
591 StyledText text= fTextViewer.getTextWidget(); | |
592 int line= text.getLineIndex(y_coordinate); | |
593 | |
594 if (line is text.getLineCount() - 1) { | |
595 // check whether y_coordinate exceeds last line | |
596 if (y_coordinate > text.getLinePixel(line + 1)) | |
597 return -1; | |
598 } | |
599 | |
600 return widgetLine2ModelLine(fTextViewer, line); | |
601 } | |
602 | |
603 /** | |
604 * Returns the line of the viewer's document that corresponds to the given widget line. | |
605 * | |
606 * @param viewer the viewer | |
607 * @param widgetLine the widget line | |
608 * @return the corresponding line of the viewer's document | |
609 * @since 2.1 | |
610 */ | |
611 protected final static int widgetLine2ModelLine(ITextViewer viewer, int widgetLine) { | |
612 | |
613 if ( cast(ITextViewerExtension5)viewer ) { | |
614 ITextViewerExtension5 extension= cast(ITextViewerExtension5) viewer; | |
615 return extension.widgetLine2ModelLine(widgetLine); | |
616 } | |
617 | |
618 try { | |
619 IRegion r= viewer.getVisibleRegion(); | |
620 IDocument d= viewer.getDocument(); | |
621 return widgetLine += d.getLineOfOffset(r.getOffset()); | |
622 } catch (BadLocationException x) { | |
623 } | |
624 return widgetLine; | |
625 } | |
626 | |
627 /* | |
628 * @see IVerticalRulerExtension#setFont(Font) | |
629 * @since 2.0 | |
630 */ | |
631 public void setFont(Font font) { | |
632 } | |
633 | |
634 /* | |
635 * @see IVerticalRulerExtension#setLocationOfLastMouseButtonActivity(int, int) | |
636 * @since 2.0 | |
637 */ | |
638 public void setLocationOfLastMouseButtonActivity(int x, int y) { | |
639 fLastMouseButtonActivityLine= toDocumentLineNumber(y); | |
640 } | |
641 | |
642 /** | |
643 * Adds the given mouse listener. | |
644 * | |
645 * @param listener the listener to be added | |
646 * @deprecated will be removed | |
647 * @since 2.0 | |
648 */ | |
649 public void addMouseListener(MouseListener listener) { | |
650 if (fCanvas !is null && !fCanvas.isDisposed()) | |
651 fCanvas.addMouseListener(listener); | |
652 } | |
653 | |
654 /** | |
655 * Removes the given mouse listener. | |
656 * | |
657 * @param listener the listener to be removed | |
658 * @deprecated will be removed | |
659 * @since 2.0 | |
660 */ | |
661 public void removeMouseListener(MouseListener listener) { | |
662 if (fCanvas !is null && !fCanvas.isDisposed()) | |
663 fCanvas.removeMouseListener(listener); | |
664 } | |
665 } |