Mercurial > projects > dwt2
comparison org.eclipse.jface.text/src/org/eclipse/jface/text/DefaultTextHover.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) 2005, 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.DefaultTextHover; | |
14 | |
15 import org.eclipse.jface.text.IDocumentPartitioningListener; // packageimport | |
16 import org.eclipse.jface.text.AbstractInformationControl; // packageimport | |
17 import org.eclipse.jface.text.TextUtilities; // packageimport | |
18 import org.eclipse.jface.text.IInformationControlCreatorExtension; // packageimport | |
19 import org.eclipse.jface.text.AbstractInformationControlManager; // packageimport | |
20 import org.eclipse.jface.text.ITextViewerExtension2; // packageimport | |
21 import org.eclipse.jface.text.IDocumentPartitioner; // packageimport | |
22 import org.eclipse.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport | |
23 import org.eclipse.jface.text.ITextSelection; // packageimport | |
24 import org.eclipse.jface.text.Document; // packageimport | |
25 import org.eclipse.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport | |
26 import org.eclipse.jface.text.ITextListener; // packageimport | |
27 import org.eclipse.jface.text.BadPartitioningException; // packageimport | |
28 import org.eclipse.jface.text.ITextViewerExtension5; // packageimport | |
29 import org.eclipse.jface.text.IDocumentPartitionerExtension3; // packageimport | |
30 import org.eclipse.jface.text.IUndoManager; // packageimport | |
31 import org.eclipse.jface.text.ITextHoverExtension2; // packageimport | |
32 import org.eclipse.jface.text.IRepairableDocument; // packageimport | |
33 import org.eclipse.jface.text.IRewriteTarget; // packageimport | |
34 import org.eclipse.jface.text.DefaultPositionUpdater; // packageimport | |
35 import org.eclipse.jface.text.RewriteSessionEditProcessor; // packageimport | |
36 import org.eclipse.jface.text.TextViewerHoverManager; // packageimport | |
37 import org.eclipse.jface.text.DocumentRewriteSession; // packageimport | |
38 import org.eclipse.jface.text.TextViewer; // packageimport | |
39 import org.eclipse.jface.text.ITextViewerExtension8; // packageimport | |
40 import org.eclipse.jface.text.RegExMessages; // packageimport | |
41 import org.eclipse.jface.text.IDelayedInputChangeProvider; // packageimport | |
42 import org.eclipse.jface.text.ITextOperationTargetExtension; // packageimport | |
43 import org.eclipse.jface.text.IWidgetTokenOwner; // packageimport | |
44 import org.eclipse.jface.text.IViewportListener; // packageimport | |
45 import org.eclipse.jface.text.GapTextStore; // packageimport | |
46 import org.eclipse.jface.text.MarkSelection; // packageimport | |
47 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
48 import org.eclipse.jface.text.IDocumentAdapterExtension; // packageimport | |
49 import org.eclipse.jface.text.IInformationControlExtension; // packageimport | |
50 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
51 import org.eclipse.jface.text.DefaultDocumentAdapter; // packageimport | |
52 import org.eclipse.jface.text.ITextViewerExtension3; // packageimport | |
53 import org.eclipse.jface.text.IInformationControlCreator; // packageimport | |
54 import org.eclipse.jface.text.TypedRegion; // packageimport | |
55 import org.eclipse.jface.text.ISynchronizable; // packageimport | |
56 import org.eclipse.jface.text.IMarkRegionTarget; // packageimport | |
57 import org.eclipse.jface.text.TextViewerUndoManager; // packageimport | |
58 import org.eclipse.jface.text.IRegion; // packageimport | |
59 import org.eclipse.jface.text.IInformationControlExtension2; // packageimport | |
60 import org.eclipse.jface.text.IDocumentExtension4; // packageimport | |
61 import org.eclipse.jface.text.IDocumentExtension2; // packageimport | |
62 import org.eclipse.jface.text.IDocumentPartitionerExtension2; // packageimport | |
63 import org.eclipse.jface.text.Assert; // packageimport | |
64 import org.eclipse.jface.text.DefaultInformationControl; // packageimport | |
65 import org.eclipse.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
66 import org.eclipse.jface.text.DocumentClone; // packageimport | |
67 import org.eclipse.jface.text.DefaultUndoManager; // packageimport | |
68 import org.eclipse.jface.text.IFindReplaceTarget; // packageimport | |
69 import org.eclipse.jface.text.IAutoEditStrategy; // packageimport | |
70 import org.eclipse.jface.text.ILineTrackerExtension; // packageimport | |
71 import org.eclipse.jface.text.IUndoManagerExtension; // packageimport | |
72 import org.eclipse.jface.text.TextSelection; // packageimport | |
73 import org.eclipse.jface.text.DefaultAutoIndentStrategy; // packageimport | |
74 import org.eclipse.jface.text.IAutoIndentStrategy; // packageimport | |
75 import org.eclipse.jface.text.IPainter; // packageimport | |
76 import org.eclipse.jface.text.IInformationControl; // packageimport | |
77 import org.eclipse.jface.text.IInformationControlExtension3; // packageimport | |
78 import org.eclipse.jface.text.ITextViewerExtension6; // packageimport | |
79 import org.eclipse.jface.text.IInformationControlExtension4; // packageimport | |
80 import org.eclipse.jface.text.DefaultLineTracker; // packageimport | |
81 import org.eclipse.jface.text.IDocumentInformationMappingExtension; // packageimport | |
82 import org.eclipse.jface.text.IRepairableDocumentExtension; // packageimport | |
83 import org.eclipse.jface.text.ITextHover; // packageimport | |
84 import org.eclipse.jface.text.FindReplaceDocumentAdapter; // packageimport | |
85 import org.eclipse.jface.text.ILineTracker; // packageimport | |
86 import org.eclipse.jface.text.Line; // packageimport | |
87 import org.eclipse.jface.text.ITextViewerExtension; // packageimport | |
88 import org.eclipse.jface.text.IDocumentAdapter; // packageimport | |
89 import org.eclipse.jface.text.TextEvent; // packageimport | |
90 import org.eclipse.jface.text.BadLocationException; // packageimport | |
91 import org.eclipse.jface.text.AbstractDocument; // packageimport | |
92 import org.eclipse.jface.text.AbstractLineTracker; // packageimport | |
93 import org.eclipse.jface.text.TreeLineTracker; // packageimport | |
94 import org.eclipse.jface.text.ITextPresentationListener; // packageimport | |
95 import org.eclipse.jface.text.Region; // packageimport | |
96 import org.eclipse.jface.text.ITextViewer; // packageimport | |
97 import org.eclipse.jface.text.IDocumentInformationMapping; // packageimport | |
98 import org.eclipse.jface.text.MarginPainter; // packageimport | |
99 import org.eclipse.jface.text.IPaintPositionManager; // packageimport | |
100 import org.eclipse.jface.text.TextPresentation; // packageimport | |
101 import org.eclipse.jface.text.IFindReplaceTargetExtension; // packageimport | |
102 import org.eclipse.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
103 import org.eclipse.jface.text.ISelectionValidator; // packageimport | |
104 import org.eclipse.jface.text.IDocumentExtension; // packageimport | |
105 import org.eclipse.jface.text.PropagatingFontFieldEditor; // packageimport | |
106 import org.eclipse.jface.text.ConfigurableLineTracker; // packageimport | |
107 import org.eclipse.jface.text.SlaveDocumentEvent; // packageimport | |
108 import org.eclipse.jface.text.IDocumentListener; // packageimport | |
109 import org.eclipse.jface.text.PaintManager; // packageimport | |
110 import org.eclipse.jface.text.IFindReplaceTargetExtension3; // packageimport | |
111 import org.eclipse.jface.text.ITextDoubleClickStrategy; // packageimport | |
112 import org.eclipse.jface.text.IDocumentExtension3; // packageimport | |
113 import org.eclipse.jface.text.Position; // packageimport | |
114 import org.eclipse.jface.text.TextMessages; // packageimport | |
115 import org.eclipse.jface.text.CopyOnWriteTextStore; // packageimport | |
116 import org.eclipse.jface.text.WhitespaceCharacterPainter; // packageimport | |
117 import org.eclipse.jface.text.IPositionUpdater; // packageimport | |
118 import org.eclipse.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
119 import org.eclipse.jface.text.ListLineTracker; // packageimport | |
120 import org.eclipse.jface.text.ITextInputListener; // packageimport | |
121 import org.eclipse.jface.text.BadPositionCategoryException; // packageimport | |
122 import org.eclipse.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
123 import org.eclipse.jface.text.IInputChangedListener; // packageimport | |
124 import org.eclipse.jface.text.ITextOperationTarget; // packageimport | |
125 import org.eclipse.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
126 import org.eclipse.jface.text.ITextViewerExtension7; // packageimport | |
127 import org.eclipse.jface.text.IInformationControlExtension5; // packageimport | |
128 import org.eclipse.jface.text.IDocumentRewriteSessionListener; // packageimport | |
129 import org.eclipse.jface.text.JFaceTextUtil; // packageimport | |
130 import org.eclipse.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
131 import org.eclipse.jface.text.TabsToSpacesConverter; // packageimport | |
132 import org.eclipse.jface.text.CursorLinePainter; // packageimport | |
133 import org.eclipse.jface.text.ITextHoverExtension; // packageimport | |
134 import org.eclipse.jface.text.IEventConsumer; // packageimport | |
135 import org.eclipse.jface.text.IDocument; // packageimport | |
136 import org.eclipse.jface.text.IWidgetTokenKeeper; // packageimport | |
137 import org.eclipse.jface.text.DocumentCommand; // packageimport | |
138 import org.eclipse.jface.text.TypedPosition; // packageimport | |
139 import org.eclipse.jface.text.IEditingSupportRegistry; // packageimport | |
140 import org.eclipse.jface.text.IDocumentPartitionerExtension; // packageimport | |
141 import org.eclipse.jface.text.AbstractHoverInformationControlManager; // packageimport | |
142 import org.eclipse.jface.text.IEditingSupport; // packageimport | |
143 import org.eclipse.jface.text.IMarkSelection; // packageimport | |
144 import org.eclipse.jface.text.ISlaveDocumentManager; // packageimport | |
145 import org.eclipse.jface.text.DocumentEvent; // packageimport | |
146 import org.eclipse.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
147 import org.eclipse.jface.text.ITextStore; // packageimport | |
148 import org.eclipse.jface.text.JFaceTextMessages; // packageimport | |
149 import org.eclipse.jface.text.DocumentRewriteSessionEvent; // packageimport | |
150 import org.eclipse.jface.text.SequentialRewriteTextStore; // packageimport | |
151 import org.eclipse.jface.text.DocumentRewriteSessionType; // packageimport | |
152 import org.eclipse.jface.text.TextAttribute; // packageimport | |
153 import org.eclipse.jface.text.ITextViewerExtension4; // packageimport | |
154 import org.eclipse.jface.text.ITypedRegion; // packageimport | |
155 | |
156 | |
157 import java.lang.all; | |
158 import java.util.Iterator; | |
159 import java.util.Set; | |
160 | |
161 | |
162 import org.eclipse.core.runtime.Assert; | |
163 import org.eclipse.jface.text.source.Annotation; | |
164 import org.eclipse.jface.text.source.IAnnotationModel; | |
165 import org.eclipse.jface.text.source.ISourceViewer; | |
166 import org.eclipse.jface.text.source.ISourceViewerExtension2; | |
167 | |
168 /** | |
169 * Standard implementation of {@link org.eclipse.jface.text.ITextHover}. | |
170 * | |
171 * @since 3.2 | |
172 */ | |
173 public class DefaultTextHover : ITextHover { | |
174 | |
175 /** This hover's source viewer */ | |
176 private ISourceViewer fSourceViewer; | |
177 | |
178 /** | |
179 * Creates a new annotation hover. | |
180 * | |
181 * @param sourceViewer this hover's annotation model | |
182 */ | |
183 public this(ISourceViewer sourceViewer) { | |
184 org.eclipse.core.runtime.Assert.Assert.isNotNull(cast(Object)sourceViewer); | |
185 fSourceViewer= sourceViewer; | |
186 } | |
187 | |
188 /* | |
189 * @see org.eclipse.jface.text.ITextHover#getHoverInfo(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion) | |
190 */ | |
191 public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { | |
192 IAnnotationModel model= getAnnotationModel(fSourceViewer); | |
193 if (model is null) | |
194 return null; | |
195 | |
196 Iterator e= model.getAnnotationIterator(); | |
197 while (e.hasNext()) { | |
198 Annotation a= cast(Annotation) e.next(); | |
199 if (isIncluded(a)) { | |
200 Position p= model.getPosition(a); | |
201 if (p !is null && p.overlapsWith(hoverRegion.getOffset(), hoverRegion.getLength())) { | |
202 String msg= a.getText(); | |
203 if (msg !is null && msg.trim().length() > 0) | |
204 return msg; | |
205 } | |
206 } | |
207 } | |
208 | |
209 return null; | |
210 } | |
211 | |
212 /* | |
213 * @see org.eclipse.jface.text.ITextHover#getHoverRegion(org.eclipse.jface.text.ITextViewer, int) | |
214 */ | |
215 public IRegion getHoverRegion(ITextViewer textViewer, int offset) { | |
216 return findWord(textViewer.getDocument(), offset); | |
217 } | |
218 | |
219 /** | |
220 * Tells whether the annotation should be included in | |
221 * the computation. | |
222 * | |
223 * @param annotation the annotation to test | |
224 * @return <code>true</code> if the annotation is included in the computation | |
225 */ | |
226 protected bool isIncluded(Annotation annotation) { | |
227 return true; | |
228 } | |
229 | |
230 private IAnnotationModel getAnnotationModel(ISourceViewer viewer) { | |
231 if (cast(ISourceViewerExtension2)viewer ) { | |
232 ISourceViewerExtension2 extension= cast(ISourceViewerExtension2) viewer; | |
233 return extension.getVisualAnnotationModel(); | |
234 } | |
235 return viewer.getAnnotationModel(); | |
236 } | |
237 | |
238 private IRegion findWord(IDocument document, int offset) { | |
239 int start= -2; | |
240 int end= -1; | |
241 | |
242 implMissing(__FILE__,__LINE__); | |
243 // SWT FIXME: unicode | |
244 /+ | |
245 try { | |
246 int pos= offset; | |
247 wchar c; | |
248 | |
249 while (pos >= 0) { | |
250 c= document.getChar(pos); | |
251 if (!Character.isUnicodeIdentifierPart(c)) | |
252 break; | |
253 --pos; | |
254 } | |
255 | |
256 start= pos; | |
257 | |
258 pos= offset; | |
259 int length= document.getLength(); | |
260 | |
261 while (pos < length) { | |
262 c= document.getChar(pos); | |
263 if (!Character.isUnicodeIdentifierPart(c)) | |
264 break; | |
265 ++pos; | |
266 } | |
267 | |
268 end= pos; | |
269 | |
270 } catch (BadLocationException x) { | |
271 } | |
272 | |
273 if (start >= -1 && end > -1) { | |
274 if (start is offset && end is offset) | |
275 return new Region(offset, 0); | |
276 else if (start is offset) | |
277 return new Region(start, end - start); | |
278 else | |
279 return new Region(start + 1, end - start - 1); | |
280 } | |
281 +/ | |
282 return null; | |
283 } | |
284 } |