Mercurial > projects > dwt-addons
annotate dwtx/jface/text/DefaultTextHover.d @ 136:6dcb0baaa031
Regex removal of throws decls, some instanceof
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 02:20:40 +0200 |
parents | 51e6e63f930e |
children | f70d9508c95c |
rev | line source |
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129 | 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 dwtx.jface.text.DefaultTextHover; | |
14 | |
131 | 15 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport |
16 import dwtx.jface.text.AbstractInformationControl; // packageimport | |
17 import dwtx.jface.text.TextUtilities; // packageimport | |
18 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport | |
19 import dwtx.jface.text.AbstractInformationControlManager; // packageimport | |
20 import dwtx.jface.text.ITextViewerExtension2; // packageimport | |
21 import dwtx.jface.text.IDocumentPartitioner; // packageimport | |
22 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport | |
23 import dwtx.jface.text.ITextSelection; // packageimport | |
24 import dwtx.jface.text.Document; // packageimport | |
25 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport | |
26 import dwtx.jface.text.ITextListener; // packageimport | |
27 import dwtx.jface.text.BadPartitioningException; // packageimport | |
28 import dwtx.jface.text.ITextViewerExtension5; // packageimport | |
29 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport | |
30 import dwtx.jface.text.IUndoManager; // packageimport | |
31 import dwtx.jface.text.ITextHoverExtension2; // packageimport | |
32 import dwtx.jface.text.IRepairableDocument; // packageimport | |
33 import dwtx.jface.text.IRewriteTarget; // packageimport | |
34 import dwtx.jface.text.DefaultPositionUpdater; // packageimport | |
35 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport | |
36 import dwtx.jface.text.TextViewerHoverManager; // packageimport | |
37 import dwtx.jface.text.DocumentRewriteSession; // packageimport | |
38 import dwtx.jface.text.TextViewer; // packageimport | |
39 import dwtx.jface.text.ITextViewerExtension8; // packageimport | |
40 import dwtx.jface.text.RegExMessages; // packageimport | |
41 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport | |
42 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport | |
43 import dwtx.jface.text.IWidgetTokenOwner; // packageimport | |
44 import dwtx.jface.text.IViewportListener; // packageimport | |
45 import dwtx.jface.text.GapTextStore; // packageimport | |
46 import dwtx.jface.text.MarkSelection; // packageimport | |
47 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
48 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport | |
49 import dwtx.jface.text.IInformationControlExtension; // packageimport | |
50 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
51 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport | |
52 import dwtx.jface.text.ITextViewerExtension3; // packageimport | |
53 import dwtx.jface.text.IInformationControlCreator; // packageimport | |
54 import dwtx.jface.text.TypedRegion; // packageimport | |
55 import dwtx.jface.text.ISynchronizable; // packageimport | |
56 import dwtx.jface.text.IMarkRegionTarget; // packageimport | |
57 import dwtx.jface.text.TextViewerUndoManager; // packageimport | |
58 import dwtx.jface.text.IRegion; // packageimport | |
59 import dwtx.jface.text.IInformationControlExtension2; // packageimport | |
60 import dwtx.jface.text.IDocumentExtension4; // packageimport | |
61 import dwtx.jface.text.IDocumentExtension2; // packageimport | |
62 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport | |
63 import dwtx.jface.text.Assert; // packageimport | |
64 import dwtx.jface.text.DefaultInformationControl; // packageimport | |
65 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
66 import dwtx.jface.text.DocumentClone; // packageimport | |
67 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
68 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
69 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
70 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
71 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
72 import dwtx.jface.text.TextSelection; // packageimport | |
73 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
74 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
75 import dwtx.jface.text.IPainter; // packageimport | |
76 import dwtx.jface.text.IInformationControl; // packageimport | |
77 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
78 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
79 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
80 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
81 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
82 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
83 import dwtx.jface.text.ITextHover; // packageimport | |
84 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport | |
85 import dwtx.jface.text.ILineTracker; // packageimport | |
86 import dwtx.jface.text.Line; // packageimport | |
87 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
88 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
89 import dwtx.jface.text.TextEvent; // packageimport | |
90 import dwtx.jface.text.BadLocationException; // packageimport | |
91 import dwtx.jface.text.AbstractDocument; // packageimport | |
92 import dwtx.jface.text.AbstractLineTracker; // packageimport | |
93 import dwtx.jface.text.TreeLineTracker; // packageimport | |
94 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
95 import dwtx.jface.text.Region; // packageimport | |
96 import dwtx.jface.text.ITextViewer; // packageimport | |
97 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
98 import dwtx.jface.text.MarginPainter; // packageimport | |
99 import dwtx.jface.text.IPaintPositionManager; // packageimport | |
100 import dwtx.jface.text.TextPresentation; // packageimport | |
101 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport | |
102 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
103 import dwtx.jface.text.ISelectionValidator; // packageimport | |
104 import dwtx.jface.text.IDocumentExtension; // packageimport | |
105 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport | |
106 import dwtx.jface.text.ConfigurableLineTracker; // packageimport | |
107 import dwtx.jface.text.SlaveDocumentEvent; // packageimport | |
108 import dwtx.jface.text.IDocumentListener; // packageimport | |
109 import dwtx.jface.text.PaintManager; // packageimport | |
110 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport | |
111 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport | |
112 import dwtx.jface.text.IDocumentExtension3; // packageimport | |
113 import dwtx.jface.text.Position; // packageimport | |
114 import dwtx.jface.text.TextMessages; // packageimport | |
115 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport | |
116 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport | |
117 import dwtx.jface.text.IPositionUpdater; // packageimport | |
118 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
119 import dwtx.jface.text.ListLineTracker; // packageimport | |
120 import dwtx.jface.text.ITextInputListener; // packageimport | |
121 import dwtx.jface.text.BadPositionCategoryException; // packageimport | |
122 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
123 import dwtx.jface.text.IInputChangedListener; // packageimport | |
124 import dwtx.jface.text.ITextOperationTarget; // packageimport | |
125 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
126 import dwtx.jface.text.ITextViewerExtension7; // packageimport | |
127 import dwtx.jface.text.IInformationControlExtension5; // packageimport | |
128 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport | |
129 import dwtx.jface.text.JFaceTextUtil; // packageimport | |
130 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
131 import dwtx.jface.text.TabsToSpacesConverter; // packageimport | |
132 import dwtx.jface.text.CursorLinePainter; // packageimport | |
133 import dwtx.jface.text.ITextHoverExtension; // packageimport | |
134 import dwtx.jface.text.IEventConsumer; // packageimport | |
135 import dwtx.jface.text.IDocument; // packageimport | |
136 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport | |
137 import dwtx.jface.text.DocumentCommand; // packageimport | |
138 import dwtx.jface.text.TypedPosition; // packageimport | |
139 import dwtx.jface.text.IEditingSupportRegistry; // packageimport | |
140 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport | |
141 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport | |
142 import dwtx.jface.text.IEditingSupport; // packageimport | |
143 import dwtx.jface.text.IMarkSelection; // packageimport | |
144 import dwtx.jface.text.ISlaveDocumentManager; // packageimport | |
145 import dwtx.jface.text.DocumentEvent; // packageimport | |
146 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
147 import dwtx.jface.text.ITextStore; // packageimport | |
148 import dwtx.jface.text.JFaceTextMessages; // packageimport | |
149 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport | |
150 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport | |
151 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport | |
152 import dwtx.jface.text.TextAttribute; // packageimport | |
153 import dwtx.jface.text.ITextViewerExtension4; // packageimport | |
154 import dwtx.jface.text.ITypedRegion; // packageimport | |
155 | |
156 | |
129 | 157 import dwt.dwthelper.utils; |
158 | |
159 import java.util.Iterator; | |
160 | |
161 import dwtx.core.runtime.Assert; | |
162 import dwtx.jface.text.source.Annotation; | |
163 import dwtx.jface.text.source.IAnnotationModel; | |
164 import dwtx.jface.text.source.ISourceViewer; | |
165 import dwtx.jface.text.source.ISourceViewerExtension2; | |
166 | |
167 /** | |
168 * Standard implementation of {@link dwtx.jface.text.ITextHover}. | |
136
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169 * |
129 | 170 * @since 3.2 |
171 */ | |
172 public class DefaultTextHover : ITextHover { | |
173 | |
174 /** This hover's source viewer */ | |
175 private ISourceViewer fSourceViewer; | |
176 | |
177 /** | |
178 * Creates a new annotation hover. | |
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179 * |
129 | 180 * @param sourceViewer this hover's annotation model |
181 */ | |
133
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182 public this(ISourceViewer sourceViewer) { |
129 | 183 Assert.isNotNull(sourceViewer); |
184 fSourceViewer= sourceViewer; | |
185 } | |
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186 |
129 | 187 /* |
188 * @see dwtx.jface.text.ITextHover#getHoverInfo(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion) | |
189 */ | |
190 public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { | |
191 IAnnotationModel model= getAnnotationModel(fSourceViewer); | |
192 if (model is null) | |
193 return null; | |
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194 |
129 | 195 Iterator e= model.getAnnotationIterator(); |
196 while (e.hasNext()) { | |
134 | 197 Annotation a= cast(Annotation) e.next(); |
129 | 198 if (isIncluded(a)) { |
199 Position p= model.getPosition(a); | |
200 if (p !is null && p.overlapsWith(hoverRegion.getOffset(), hoverRegion.getLength())) { | |
201 String msg= a.getText(); | |
202 if (msg !is null && msg.trim().length() > 0) | |
203 return msg; | |
204 } | |
205 } | |
206 } | |
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207 |
129 | 208 return null; |
209 } | |
210 | |
211 /* | |
212 * @see dwtx.jface.text.ITextHover#getHoverRegion(dwtx.jface.text.ITextViewer, int) | |
213 */ | |
214 public IRegion getHoverRegion(ITextViewer textViewer, int offset) { | |
215 return findWord(textViewer.getDocument(), offset); | |
216 } | |
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217 |
129 | 218 /** |
219 * Tells whether the annotation should be included in | |
220 * the computation. | |
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221 * |
129 | 222 * @param annotation the annotation to test |
223 * @return <code>true</code> if the annotation is included in the computation | |
224 */ | |
225 protected bool isIncluded(Annotation annotation) { | |
226 return true; | |
227 } | |
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228 |
129 | 229 private IAnnotationModel getAnnotationModel(ISourceViewer viewer) { |
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230 if (cast(ISourceViewerExtension2)viewer ) { |
134 | 231 ISourceViewerExtension2 extension= cast(ISourceViewerExtension2) viewer; |
129 | 232 return extension.getVisualAnnotationModel(); |
233 } | |
234 return viewer.getAnnotationModel(); | |
235 } | |
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236 |
129 | 237 private IRegion findWord(IDocument document, int offset) { |
238 int start= -2; | |
239 int end= -1; | |
240 | |
241 try { | |
242 | |
243 int pos= offset; | |
244 char c; | |
245 | |
246 while (pos >= 0) { | |
247 c= document.getChar(pos); | |
248 if (!Character.isUnicodeIdentifierPart(c)) | |
249 break; | |
250 --pos; | |
251 } | |
252 | |
253 start= pos; | |
254 | |
255 pos= offset; | |
256 int length= document.getLength(); | |
257 | |
258 while (pos < length) { | |
259 c= document.getChar(pos); | |
260 if (!Character.isUnicodeIdentifierPart(c)) | |
261 break; | |
262 ++pos; | |
263 } | |
264 | |
265 end= pos; | |
266 | |
267 } catch (BadLocationException x) { | |
268 } | |
269 | |
270 if (start >= -1 && end > -1) { | |
271 if (start is offset && end is offset) | |
272 return new Region(offset, 0); | |
273 else if (start is offset) | |
274 return new Region(start, end - start); | |
275 else | |
276 return new Region(start + 1, end - start - 1); | |
277 } | |
278 | |
279 return null; | |
280 } | |
281 } |