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comparison dwtx/jface/text/TextViewerHoverManager.d @ 161:f8d52b926852

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author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:49:30 +0200
parents 7926b636c282
children 1a5b8f8129df
comparison
equal deleted inserted replaced
160:3678e4f1a766 161:f8d52b926852
225 * @param creator the information control creator 225 * @param creator the information control creator
226 */ 226 */
227 public this(TextViewer textViewer, IInformationControlCreator creator) { 227 public this(TextViewer textViewer, IInformationControlCreator creator) {
228 super(creator); 228 super(creator);
229 fTextViewer= textViewer; 229 fTextViewer= textViewer;
230 fStopper= new class() ITextListener { 230 fStopper= new class() ITextListener {
231 public void textChanged(TextEvent event) { 231 public void textChanged(TextEvent event) {
232 synchronized (fMutex) { 232 synchronized (fMutex) {
233 if (fThread !is null) { 233 if (fThread !is null) {
234 fThread.interrupt(); 234 implMissing(__FILE__,__LINE__);
235 // DWT FIXME: how to handle Thread.interrupt?
236 // fThread.interrupt();
235 fThread= null; 237 fThread= null;
236 } 238 }
237 } 239 }
238 } 240 }
239 }; 241 };
262 * a background thread. 264 * a background thread.
263 */ 265 */
264 protected void computeInformation() { 266 protected void computeInformation() {
265 267
266 if (!fProcessMouseHoverEvent) { 268 if (!fProcessMouseHoverEvent) {
267 setInformation(null, null); 269 setInformation(cast(Object)null, null);
268 return; 270 return;
269 } 271 }
270 272
271 Point location= getHoverEventLocation(); 273 Point location= getHoverEventLocation();
272 int offset= computeOffsetAtLocation(location.x, location.y); 274 int offset= computeOffsetAtLocation(location.x, location.y);
273 if (offset is -1) { 275 if (offset is -1) {
274 setInformation(null, null); 276 setInformation(cast(Object)null, null);
275 return; 277 return;
276 } 278 }
277 279
278 final ITextHover hover= fTextViewer.getTextHover(offset, getHoverEventStateMask()); 280 final ITextHover hover= fTextViewer.getTextHover_package(offset, getHoverEventStateMask());
279 if (hover is null) { 281 if (hover is null) {
280 setInformation(null, null); 282 setInformation(cast(Object)null, null);
281 return; 283 return;
282 } 284 }
283 285
284 final IRegion region= hover.getHoverRegion(fTextViewer, offset); 286 final IRegion region= hover.getHoverRegion(fTextViewer, offset);
285 if (region is null) { 287 if (region is null) {
286 setInformation(null, null); 288 setInformation(cast(Object)null, null);
287 return; 289 return;
288 } 290 }
289 291
290 final Rectangle area= JFaceTextUtil.computeArea(region, fTextViewer); 292 final Rectangle area= JFaceTextUtil.computeArea(region, fTextViewer);
291 if (area is null || area.isEmpty()) { 293 if (area is null || area.isEmpty()) {
292 setInformation(null, null); 294 setInformation(cast(Object)null, null);
293 return; 295 return;
294 } 296 }
295 297
296 if (fThread !is null) { 298 if (fThread !is null) {
297 setInformation(null, null); 299 setInformation(cast(Object)null, null);
298 return; 300 return;
299 } 301 }
300 302
301 void threadrun() { 303 void threadrun() {
302 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=17693 304 // http://bugs.eclipse.org/bugs/show_bug.cgi?id=17693
306 Object information; 308 Object information;
307 try { 309 try {
308 if ( cast(ITextHoverExtension2)hover ) 310 if ( cast(ITextHoverExtension2)hover )
309 information= (cast(ITextHoverExtension2)hover).getHoverInfo2(fTextViewer, region); 311 information= (cast(ITextHoverExtension2)hover).getHoverInfo2(fTextViewer, region);
310 else 312 else
311 information= hover.getHoverInfo(fTextViewer, region); 313 information= stringcast(hover.getHoverInfo(fTextViewer, region));
312 } catch (ArrayIndexOutOfBoundsException x) { 314 } catch (ArrayIndexOutOfBoundsException x) {
313 /* 315 /*
314 * This code runs in a separate thread which can 316 * This code runs in a separate thread which can
315 * lead to text offsets being out of bounds when 317 * lead to text offsets being out of bounds when
316 * computing the hover info (see bug 32848). 318 * computing the hover info (see bug 32848).
325 327
326 setInformation(information, area); 328 setInformation(information, area);
327 if (information !is null) 329 if (information !is null)
328 fTextHover= hover; 330 fTextHover= hover;
329 } else { 331 } else {
330 setInformation(null, null); 332 setInformation(cast(Object)null, null);
331 } 333 }
332 hasFinished= true; 334 hasFinished= true;
333 } catch (RuntimeException ex) { 335 } catch (RuntimeException ex) {
334 String PLUGIN_ID= "dwtx.jface.text"; //$NON-NLS-1$ 336 String PLUGIN_ID= "dwtx.jface.text"; //$NON-NLS-1$
335 ILog log= Platform.getLog(Platform.getBundle(PLUGIN_ID)); 337 ILog log= Platform.getLog(Platform.getBundle(PLUGIN_ID));
339 if (fTextViewer !is null) 341 if (fTextViewer !is null)
340 fTextViewer.removeTextListener(fStopper); 342 fTextViewer.removeTextListener(fStopper);
341 fThread= null; 343 fThread= null;
342 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=44756 344 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=44756
343 if (!hasFinished) 345 if (!hasFinished)
344 setInformation(null, null); 346 setInformation(cast(Object)null, null);
345 } 347 }
346 } 348 }
347 } 349 }
348 fThread= new Thread( &threadrun ); 350 fThread= new Thread( &threadrun );
349 fThread.name = "Text Viewer Hover Presenter"; //$NON-NLS-1$ 351 fThread.name = "Text Viewer Hover Presenter"; //$NON-NLS-1$