Mercurial > projects > dwt-addons
annotate dwtx/jface/text/hyperlink/MultipleHyperlinkPresenter.d @ 147:000f9136b8f7
final
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 22:35:05 +0200 |
parents | 75302ef3f92f |
children | 25f1f92fa3df |
rev | line source |
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129 | 1 /******************************************************************************* |
2 * Copyright (c) 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.hyperlink.MultipleHyperlinkPresenter; | |
14 | |
131 | 15 import dwtx.jface.text.hyperlink.IHyperlinkPresenterExtension; // packageimport |
16 import dwtx.jface.text.hyperlink.HyperlinkManager; // packageimport | |
17 import dwtx.jface.text.hyperlink.URLHyperlink; // packageimport | |
18 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension2; // packageimport | |
19 import dwtx.jface.text.hyperlink.IHyperlinkDetector; // packageimport | |
20 import dwtx.jface.text.hyperlink.IHyperlinkPresenter; // packageimport | |
21 import dwtx.jface.text.hyperlink.URLHyperlinkDetector; // packageimport | |
22 import dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter; // packageimport | |
23 import dwtx.jface.text.hyperlink.AbstractHyperlinkDetector; // packageimport | |
24 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension; // packageimport | |
25 import dwtx.jface.text.hyperlink.HyperlinkMessages; // packageimport | |
26 import dwtx.jface.text.hyperlink.IHyperlink; // packageimport | |
27 | |
28 | |
129 | 29 import dwt.dwthelper.utils; |
30 | |
31 | |
32 import dwt.DWT; | |
33 import dwt.events.KeyAdapter; | |
34 import dwt.events.KeyEvent; | |
35 import dwt.events.KeyListener; | |
36 import dwt.events.MouseAdapter; | |
37 import dwt.events.MouseEvent; | |
38 import dwt.events.MouseMoveListener; | |
39 import dwt.events.SelectionAdapter; | |
40 import dwt.events.SelectionEvent; | |
41 import dwt.events.ShellAdapter; | |
42 import dwt.events.ShellEvent; | |
43 import dwt.graphics.Color; | |
44 import dwt.graphics.Point; | |
45 import dwt.graphics.RGB; | |
46 import dwt.graphics.Rectangle; | |
47 import dwt.layout.GridLayout; | |
48 import dwt.widgets.Composite; | |
49 import dwt.widgets.Control; | |
50 import dwt.widgets.Display; | |
51 import dwt.widgets.Event; | |
52 import dwt.widgets.Listener; | |
53 import dwt.widgets.Shell; | |
54 import dwt.widgets.Table; | |
55 import dwt.widgets.TableItem; | |
56 import dwtx.jface.preference.IPreferenceStore; | |
57 import dwtx.jface.text.AbstractInformationControl; | |
58 import dwtx.jface.text.AbstractInformationControlManager; | |
59 import dwtx.jface.text.IInformationControl; | |
60 import dwtx.jface.text.IInformationControlCreator; | |
61 import dwtx.jface.text.IInformationControlExtension2; | |
62 import dwtx.jface.text.IInformationControlExtension3; | |
63 import dwtx.jface.text.IRegion; | |
64 import dwtx.jface.text.ITextHover; | |
65 import dwtx.jface.text.ITextHoverExtension; | |
66 import dwtx.jface.text.ITextViewer; | |
67 import dwtx.jface.text.IWidgetTokenKeeper; | |
68 import dwtx.jface.text.IWidgetTokenKeeperExtension; | |
69 import dwtx.jface.text.IWidgetTokenOwner; | |
70 import dwtx.jface.text.IWidgetTokenOwnerExtension; | |
71 import dwtx.jface.text.JFaceTextUtil; | |
72 import dwtx.jface.text.Region; | |
73 import dwtx.jface.util.Geometry; | |
74 import dwtx.jface.viewers.ColumnLabelProvider; | |
75 import dwtx.jface.viewers.IStructuredContentProvider; | |
76 import dwtx.jface.viewers.TableViewer; | |
77 import dwtx.jface.viewers.Viewer; | |
78 | |
79 | |
80 /** | |
81 * A hyperlink presenter capable of showing multiple hyperlinks in a hover. | |
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82 * |
129 | 83 * @since 3.4 |
84 */ | |
85 public class MultipleHyperlinkPresenter : DefaultHyperlinkPresenter { | |
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86 |
129 | 87 /** |
88 * An information control capable of showing a list of hyperlinks. The hyperlinks can be opened. | |
89 */ | |
90 private static class LinkListInformationControl : AbstractInformationControl , IInformationControlExtension2 { | |
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91 |
129 | 92 private static final class LinkContentProvider : IStructuredContentProvider { |
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93 |
129 | 94 /* |
95 * @see dwtx.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) | |
96 */ | |
97 public Object[] getElements(Object inputElement) { | |
98 return (Object[]) inputElement; | |
99 } | |
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100 |
129 | 101 /* |
102 * @see dwtx.jface.viewers.IContentProvider#dispose() | |
103 */ | |
104 public void dispose() { | |
105 } | |
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106 |
129 | 107 /* |
108 * @see dwtx.jface.viewers.IContentProvider#inputChanged(dwtx.jface.viewers.Viewer, java.lang.Object, java.lang.Object) | |
109 */ | |
110 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
111 } | |
112 } | |
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113 |
129 | 114 private static final class LinkLabelProvider : ColumnLabelProvider { |
115 /* | |
116 * @see dwtx.jface.viewers.ColumnLabelProvider#getText(java.lang.Object) | |
117 */ | |
118 public String getText(Object element) { | |
134 | 119 IHyperlink link= cast(IHyperlink)element; |
129 | 120 String text= link.getHyperlinkText(); |
121 if (text !is null) | |
122 return text; | |
123 return HyperlinkMessages.getString("LinkListInformationControl.unknownLink"); //$NON-NLS-1$ | |
124 } | |
125 } | |
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126 |
146 | 127 private const MultipleHyperlinkHoverManager fManager; |
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128 |
129 | 129 private IHyperlink[] fInput; |
130 private Composite fParent; | |
131 private Table fTable; | |
132 | |
133 private Color fForegroundColor; | |
134 private Color fBackgroundColor; | |
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135 |
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136 |
129 | 137 /** |
138 * Creates a link list information control with the given shell as parent. | |
139 * | |
140 * @param parentShell the parent shell | |
141 * @param manager the hover manager | |
142 * @param foregroundColor the foreground color, must not be disposed | |
143 * @param backgroundColor the background color, must not be disposed | |
144 */ | |
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145 public this(Shell parentShell, MultipleHyperlinkHoverManager manager, Color foregroundColor, Color backgroundColor) { |
129 | 146 super(parentShell, false); |
147 fManager= manager; | |
148 fForegroundColor= foregroundColor; | |
149 fBackgroundColor= backgroundColor; | |
150 create(); | |
151 } | |
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152 |
129 | 153 /* |
154 * @see dwtx.jface.text.IInformationControl#setInformation(java.lang.String) | |
155 */ | |
156 public void setInformation(String information) { | |
157 //replaced by IInformationControlExtension2#setInput(java.lang.Object) | |
158 } | |
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159 |
129 | 160 /* |
161 * @see dwtx.jface.text.IInformationControlExtension2#setInput(java.lang.Object) | |
162 */ | |
163 public void setInput(Object input) { | |
164 fInput= (IHyperlink[]) input; | |
165 deferredCreateContent(fParent); | |
166 } | |
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167 |
129 | 168 /* |
169 * @see dwtx.jface.text.AbstractInformationControl#createContent(dwt.widgets.Composite) | |
170 */ | |
171 protected void createContent(Composite parent) { | |
172 fParent= parent; | |
173 if ("win32".equals(DWT.getPlatform())) { //$NON-NLS-1$ | |
174 GridLayout layout= new GridLayout(); | |
175 layout.marginWidth= 0; | |
176 layout.marginRight= 4; | |
177 fParent.setLayout(layout); | |
178 } | |
179 fParent.setForeground(fForegroundColor); | |
180 fParent.setBackground(fBackgroundColor); | |
181 } | |
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182 |
129 | 183 /* |
184 * @see dwtx.jface.text.AbstractInformationControl#computeSizeHint() | |
185 */ | |
186 public Point computeSizeHint() { | |
187 Point preferedSize= getShell().computeSize(DWT.DEFAULT, DWT.DEFAULT, true); | |
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188 |
129 | 189 Point constraints= getSizeConstraints(); |
190 if (constraints is null) | |
191 return preferedSize; | |
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192 |
129 | 193 if (fTable.getVerticalBar() is null || fTable.getHorizontalBar() is null) |
194 return Geometry.min(constraints, preferedSize); | |
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195 |
129 | 196 int scrollBarWidth= fTable.getVerticalBar().getSize().x; |
197 int scrollBarHeight= fTable.getHorizontalBar().getSize().y; | |
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198 |
129 | 199 int width; |
200 if (preferedSize.y - scrollBarHeight <= constraints.y) { | |
201 width= preferedSize.x - scrollBarWidth; | |
202 fTable.getVerticalBar().setVisible(false); | |
203 } else { | |
204 width= Math.min(preferedSize.x, constraints.x); | |
205 } | |
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206 |
129 | 207 int height; |
208 if (preferedSize.x - scrollBarWidth <= constraints.x) { | |
209 height= preferedSize.y - scrollBarHeight; | |
210 fTable.getHorizontalBar().setVisible(false); | |
211 } else { | |
212 height= Math.min(preferedSize.y, constraints.y); | |
213 } | |
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214 |
129 | 215 return new Point(width, height); |
216 } | |
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217 |
129 | 218 private void deferredCreateContent(Composite parent) { |
219 fTable= new Table(parent, DWT.SINGLE | DWT.FULL_SELECTION); | |
220 fTable.setLinesVisible(false); | |
221 fTable.setHeaderVisible(false); | |
222 fTable.setForeground(fForegroundColor); | |
223 fTable.setBackground(fBackgroundColor); | |
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224 |
129 | 225 final TableViewer viewer= new TableViewer(fTable); |
226 viewer.setContentProvider(new LinkContentProvider()); | |
227 viewer.setLabelProvider(new LinkLabelProvider()); | |
228 viewer.setInput(fInput); | |
229 fTable.setSelection(0); | |
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230 |
129 | 231 registerTableListeners(); |
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232 |
135 | 233 getShell().addShellListener(new class() ShellAdapter { |
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234 |
129 | 235 /* |
236 * @see dwt.events.ShellAdapter#shellActivated(dwt.events.ShellEvent) | |
237 */ | |
238 public void shellActivated(ShellEvent e) { | |
239 if (viewer.getTable().getSelectionCount() is 0) { | |
240 viewer.getTable().setSelection(0); | |
241 } | |
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242 |
129 | 243 viewer.getTable().setFocus(); |
244 } | |
245 }); | |
246 } | |
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247 |
129 | 248 private void registerTableListeners() { |
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249 |
135 | 250 fTable.addMouseMoveListener(new class() MouseMoveListener { |
129 | 251 TableItem fLastItem= null; |
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252 |
129 | 253 public void mouseMove(MouseEvent e) { |
254 if (fTable.equals(e.getSource())) { | |
255 Object o= fTable.getItem(new Point(e.x, e.y)); | |
138 | 256 if ( cast(TableItem)o ) { |
134 | 257 TableItem item= cast(TableItem) o; |
129 | 258 if (!o.equals(fLastItem)) { |
134 | 259 fLastItem= cast(TableItem) o; |
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260 fTable.setSelection([ fLastItem ]); |
129 | 261 } else if (e.y < fTable.getItemHeight() / 4) { |
262 // Scroll up | |
263 int index= fTable.indexOf(item); | |
264 if (index > 0) { | |
265 fLastItem= fTable.getItem(index - 1); | |
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266 fTable.setSelection([ fLastItem ]); |
129 | 267 } |
268 } else if (e.y > fTable.getBounds().height - fTable.getItemHeight() / 4) { | |
269 // Scroll down | |
270 int index= fTable.indexOf(item); | |
271 if (index < fTable.getItemCount() - 1) { | |
272 fLastItem= fTable.getItem(index + 1); | |
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273 fTable.setSelection([ fLastItem ]); |
129 | 274 } |
275 } | |
276 } | |
277 } | |
278 } | |
279 }); | |
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280 |
135 | 281 fTable.addSelectionListener(new class() SelectionAdapter { |
129 | 282 public void widgetSelected(SelectionEvent e) { |
283 openSelectedLink(); | |
284 } | |
285 }); | |
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286 |
135 | 287 fTable.addMouseListener(new class() MouseAdapter { |
129 | 288 public void mouseUp(MouseEvent e) { |
289 if (fTable.getSelectionCount() < 1) | |
290 return; | |
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291 |
129 | 292 if (e.button !is 1) |
293 return; | |
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294 |
129 | 295 if (fTable.equals(e.getSource())) { |
296 Object o= fTable.getItem(new Point(e.x, e.y)); | |
297 TableItem selection= fTable.getSelection()[0]; | |
298 if (selection.equals(o)) | |
299 openSelectedLink(); | |
300 } | |
301 } | |
302 }); | |
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303 |
135 | 304 fTable.addKeyListener(new class() KeyAdapter { |
129 | 305 public void keyPressed(KeyEvent e) { |
306 if (e.keyCode is 0x0D) // return | |
307 openSelectedLink(); | |
308 } | |
309 }); | |
310 } | |
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311 |
129 | 312 /* |
313 * @see dwtx.jface.text.IInformationControlExtension#hasContents() | |
314 */ | |
315 public bool hasContents() { | |
316 return true; | |
317 } | |
318 | |
319 /** | |
320 * Opens the currently selected link. | |
321 */ | |
322 private void openSelectedLink() { | |
323 TableItem selection= fTable.getSelection()[0]; | |
134 | 324 IHyperlink link= cast(IHyperlink)selection.getData(); |
129 | 325 fManager.hideInformationControl(); |
326 link.open(); | |
327 } | |
328 } | |
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329 |
129 | 330 private class MultipleHyperlinkHover : ITextHover, ITextHoverExtension { |
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331 |
129 | 332 /** |
333 * @see dwtx.jface.text.ITextHover#getHoverInfo(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion) | |
334 * @deprecated | |
335 */ | |
336 public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { | |
337 return null; | |
338 } | |
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339 |
129 | 340 /* |
341 * @see dwtx.jface.text.ITextHover#getHoverRegion(dwtx.jface.text.ITextViewer, int) | |
342 */ | |
343 public IRegion getHoverRegion(ITextViewer textViewer, int offset) { | |
344 return fSubjectRegion; | |
345 } | |
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346 |
129 | 347 /* |
348 * @see dwtx.jface.text.ITextHoverExtension2#getHoverInfo2(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion) | |
349 */ | |
350 public Object getHoverInfo2(ITextViewer textViewer, IRegion hoverRegion) { | |
351 return fHyperlinks; | |
352 } | |
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353 |
129 | 354 /* |
355 * @see dwtx.jface.text.ITextHoverExtension#getHoverControlCreator() | |
356 */ | |
357 public IInformationControlCreator getHoverControlCreator() { | |
135 | 358 return new class() IInformationControlCreator { |
129 | 359 public IInformationControl createInformationControl(Shell parent) { |
360 Color foregroundColor= fTextViewer.getTextWidget().getForeground(); | |
361 Color backgroundColor= fTextViewer.getTextWidget().getBackground(); | |
362 return new LinkListInformationControl(parent, fManager, foregroundColor, backgroundColor); | |
363 } | |
364 }; | |
365 } | |
366 } | |
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367 |
129 | 368 private static class MultipleHyperlinkHoverManager : AbstractInformationControlManager , IWidgetTokenKeeper, IWidgetTokenKeeperExtension { |
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369 |
129 | 370 private class Closer : IInformationControlCloser, Listener, KeyListener { |
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371 |
129 | 372 private Control fSubjectControl; |
373 private Display fDisplay; | |
374 private IInformationControl fControl; | |
375 private Rectangle fSubjectArea; | |
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376 |
129 | 377 /* |
378 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#setInformationControl(dwtx.jface.text.IInformationControl) | |
379 */ | |
380 public void setInformationControl(IInformationControl control) { | |
381 fControl= control; | |
382 } | |
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383 |
129 | 384 /* |
385 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#setSubjectControl(dwt.widgets.Control) | |
386 */ | |
387 public void setSubjectControl(Control subject) { | |
388 fSubjectControl= subject; | |
389 } | |
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390 |
129 | 391 /* |
392 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#start(dwt.graphics.Rectangle) | |
393 */ | |
394 public void start(Rectangle subjectArea) { | |
395 fSubjectArea= subjectArea; | |
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396 |
129 | 397 fDisplay= fSubjectControl.getDisplay(); |
398 if (!fDisplay.isDisposed()) { | |
399 fDisplay.addFilter(DWT.FocusOut, this); | |
400 fDisplay.addFilter(DWT.MouseMove, this); | |
401 fTextViewer.getTextWidget().addKeyListener(this); | |
402 } | |
403 } | |
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404 |
129 | 405 /* |
406 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#stop() | |
407 */ | |
408 public void stop() { | |
409 if (fDisplay !is null && !fDisplay.isDisposed()) { | |
410 fDisplay.removeFilter(DWT.FocusOut, this); | |
411 fDisplay.removeFilter(DWT.MouseMove, this); | |
412 fTextViewer.getTextWidget().removeKeyListener(this); | |
413 } | |
140
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414 |
129 | 415 fSubjectArea= null; |
416 } | |
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417 |
129 | 418 /* |
419 * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event) | |
420 */ | |
421 public void handleEvent(Event event) { | |
422 switch (event.type) { | |
423 case DWT.FocusOut: | |
424 if (!fControl.isFocusControl()) | |
425 disposeInformationControl(); | |
426 break; | |
427 case DWT.MouseMove: | |
428 handleMouseMove(event); | |
429 break; | |
430 } | |
431 } | |
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432 |
129 | 433 /** |
434 * Handle mouse movement events. | |
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435 * |
129 | 436 * @param event the event |
437 */ | |
438 private void handleMouseMove(Event event) { | |
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439 if (!(cast(Control)event.widget )) |
129 | 440 return; |
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441 |
129 | 442 if (fControl.isFocusControl()) |
443 return; | |
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444 |
134 | 445 Control eventControl= cast(Control) event.widget; |
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446 |
129 | 447 //transform coordinates to subject control: |
448 Point mouseLoc= event.display.map(eventControl, fSubjectControl, event.x, event.y); | |
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449 |
129 | 450 if (fSubjectArea.contains(mouseLoc)) |
451 return; | |
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452 |
134 | 453 if (inKeepUpZone(mouseLoc.x, mouseLoc.y, (cast(IInformationControlExtension3) fControl).getBounds())) |
129 | 454 return; |
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455 |
129 | 456 hideInformationControl(); |
457 } | |
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458 |
129 | 459 /** |
460 * Tests whether a given mouse location is within the keep-up zone. | |
461 * The hover should not be hidden as long as the mouse stays inside this zone. | |
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462 * |
129 | 463 * @param x the x coordinate, relative to the <em>subject control</em> |
464 * @param y the y coordinate, relative to the <em>subject control</em> | |
465 * @param controlBounds the bounds of the current control | |
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466 * |
129 | 467 * @return <code>true</code> iff the mouse event occurred in the keep-up zone |
468 */ | |
469 private bool inKeepUpZone(int x, int y, Rectangle controlBounds) { | |
470 // +-----------+ | |
471 // |subjectArea| | |
472 // +-----------+ | |
473 // |also keepUp| | |
474 // ++-----------+-------+ | |
475 // | totalBounds | | |
476 // +--------------------+ | |
477 if (fSubjectArea.contains(x, y)) | |
478 return true; | |
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479 |
129 | 480 Rectangle iControlBounds= fSubjectControl.getDisplay().map(null, fSubjectControl, controlBounds); |
481 Rectangle totalBounds= Geometry.copy(iControlBounds); | |
482 if (totalBounds.contains(x, y)) | |
483 return true; | |
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484 |
129 | 485 int keepUpY= fSubjectArea.y + fSubjectArea.height; |
486 Rectangle alsoKeepUp= new Rectangle(fSubjectArea.x, keepUpY, fSubjectArea.width, totalBounds.y - keepUpY); | |
487 return alsoKeepUp.contains(x, y); | |
488 } | |
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489 |
129 | 490 /* |
491 * @see dwt.events.KeyListener#keyPressed(dwt.events.KeyEvent) | |
492 */ | |
493 public void keyPressed(KeyEvent e) { | |
494 } | |
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495 |
129 | 496 /* |
497 * @see dwt.events.KeyListener#keyReleased(dwt.events.KeyEvent) | |
498 */ | |
499 public void keyReleased(KeyEvent e) { | |
500 hideInformationControl(); | |
501 } | |
502 | |
503 } | |
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504 |
129 | 505 /** |
506 * Priority of the hover managed by this manager. | |
507 * Default value: One higher then for the hovers | |
508 * managed by TextViewerHoverManager. | |
509 */ | |
147 | 510 private static const int WIDGET_TOKEN_PRIORITY= 1; |
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511 |
146 | 512 private const MultipleHyperlinkHover fHover; |
513 private const ITextViewer fTextViewer; | |
514 private const MultipleHyperlinkPresenter fHyperlinkPresenter; | |
129 | 515 private Closer fCloser; |
516 private bool fIsControlVisible; | |
517 | |
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518 |
129 | 519 /** |
520 * Create a new MultipleHyperlinkHoverManager. The MHHM can show and hide | |
521 * the given MultipleHyperlinkHover inside the given ITextViewer. | |
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522 * |
129 | 523 * @param hover the hover to manage |
524 * @param viewer the viewer to show the hover in | |
525 * @param hyperlinkPresenter the hyperlink presenter using this manager to present hyperlinks | |
526 */ | |
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527 public this(MultipleHyperlinkHover hover, ITextViewer viewer, MultipleHyperlinkPresenter hyperlinkPresenter) { |
129 | 528 super(hover.getHoverControlCreator()); |
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529 |
129 | 530 fHover= hover; |
531 fTextViewer= viewer; | |
532 fHyperlinkPresenter= hyperlinkPresenter; | |
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533 |
129 | 534 fCloser= new Closer(); |
535 setCloser(fCloser); | |
536 fIsControlVisible= false; | |
537 } | |
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538 |
129 | 539 /* |
540 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformation() | |
541 */ | |
542 protected void computeInformation() { | |
543 IRegion region= fHover.getHoverRegion(fTextViewer, -1); | |
544 if (region is null) { | |
545 setInformation(null, null); | |
546 return; | |
547 } | |
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548 |
129 | 549 Rectangle area= JFaceTextUtil.computeArea(region, fTextViewer); |
550 if (area is null || area.isEmpty()) { | |
551 setInformation(null, null); | |
552 return; | |
553 } | |
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554 |
129 | 555 Object information= fHover.getHoverInfo2(fTextViewer, region); |
556 setCustomInformationControlCreator(fHover.getHoverControlCreator()); | |
557 setInformation(information, area); | |
558 } | |
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559 |
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560 /* |
129 | 561 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformationControlLocation(dwt.graphics.Rectangle, dwt.graphics.Point) |
562 */ | |
563 protected Point computeInformationControlLocation(Rectangle subjectArea, Point controlSize) { | |
564 Point result= super.computeInformationControlLocation(subjectArea, controlSize); | |
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565 |
129 | 566 Point cursorLocation= fTextViewer.getTextWidget().getDisplay().getCursorLocation(); |
567 if (cursorLocation.x <= result.x + controlSize.x) | |
568 return result; | |
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569 |
129 | 570 result.x= cursorLocation.x + 20 - controlSize.x; |
571 return result; | |
572 } | |
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573 |
129 | 574 /* |
575 * @see dwtx.jface.text.AbstractInformationControlManager#showInformationControl(dwt.graphics.Rectangle) | |
576 */ | |
577 protected void showInformationControl(Rectangle subjectArea) { | |
138 | 578 if ( cast(IWidgetTokenOwnerExtension)fTextViewer ) { |
134 | 579 if ((cast(IWidgetTokenOwnerExtension) fTextViewer).requestWidgetToken(this, WIDGET_TOKEN_PRIORITY)) |
129 | 580 super.showInformationControl(subjectArea); |
138 | 581 } else if ( cast(IWidgetTokenOwner)fTextViewer ) { |
134 | 582 if ((cast(IWidgetTokenOwner) fTextViewer).requestWidgetToken(this)) |
129 | 583 super.showInformationControl(subjectArea); |
584 } else { | |
585 super.showInformationControl(subjectArea); | |
586 } | |
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587 |
129 | 588 fIsControlVisible= true; |
589 } | |
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590 |
129 | 591 /* |
592 * @see dwtx.jface.text.AbstractInformationControlManager#hideInformationControl() | |
593 */ | |
594 protected void hideInformationControl() { | |
595 super.hideInformationControl(); | |
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596 |
138 | 597 if ( cast(IWidgetTokenOwner)fTextViewer ) { |
134 | 598 (cast(IWidgetTokenOwner) fTextViewer).releaseWidgetToken(this); |
129 | 599 } |
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600 |
129 | 601 fIsControlVisible= false; |
602 fHyperlinkPresenter.hideHyperlinks(); | |
603 } | |
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604 |
129 | 605 /* |
606 * @see dwtx.jface.text.AbstractInformationControlManager#disposeInformationControl() | |
607 */ | |
608 public void disposeInformationControl() { | |
609 super.disposeInformationControl(); | |
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610 |
138 | 611 if ( cast(IWidgetTokenOwner)fTextViewer ) { |
134 | 612 (cast(IWidgetTokenOwner) fTextViewer).releaseWidgetToken(this); |
129 | 613 } |
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614 |
129 | 615 fIsControlVisible= false; |
616 fHyperlinkPresenter.hideHyperlinks(); | |
617 } | |
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618 |
129 | 619 /* |
620 * @see dwtx.jface.text.IWidgetTokenKeeper#requestWidgetToken(dwtx.jface.text.IWidgetTokenOwner) | |
621 */ | |
622 public bool requestWidgetToken(IWidgetTokenOwner owner) { | |
623 hideInformationControl(); | |
624 return true; | |
625 } | |
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626 |
129 | 627 /* |
628 * @see dwtx.jface.text.IWidgetTokenKeeperExtension#requestWidgetToken(dwtx.jface.text.IWidgetTokenOwner, int) | |
629 */ | |
630 public bool requestWidgetToken(IWidgetTokenOwner owner, int priority) { | |
631 if (priority < WIDGET_TOKEN_PRIORITY) | |
632 return false; | |
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633 |
129 | 634 hideInformationControl(); |
635 return true; | |
636 } | |
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637 |
129 | 638 /* |
639 * @see dwtx.jface.text.IWidgetTokenKeeperExtension#setFocus(dwtx.jface.text.IWidgetTokenOwner) | |
640 */ | |
641 public bool setFocus(IWidgetTokenOwner owner) { | |
642 return false; | |
643 } | |
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644 |
129 | 645 /** |
646 * Returns <code>true</code> if the information control managed by | |
647 * this manager is visible, <code>false</code> otherwise. | |
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648 * |
129 | 649 * @return <code>true</code> if information control is visible |
650 */ | |
651 public bool isInformationControlVisible() { | |
652 return fIsControlVisible; | |
653 } | |
654 } | |
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655 |
129 | 656 private ITextViewer fTextViewer; |
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657 |
129 | 658 private IHyperlink[] fHyperlinks; |
659 private Region fSubjectRegion; | |
660 private MultipleHyperlinkHoverManager fManager; | |
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661 |
129 | 662 /** |
663 * Creates a new multiple hyperlink presenter which uses | |
664 * {@link #HYPERLINK_COLOR} to read the color from the given preference store. | |
665 * | |
666 * @param store the preference store | |
667 */ | |
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668 public this(IPreferenceStore store) { |
129 | 669 super(store); |
670 } | |
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671 |
129 | 672 /** |
673 * Creates a new multiple hyperlink presenter. | |
674 * | |
675 * @param color the hyperlink color, to be disposed by the caller | |
676 */ | |
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677 public this(RGB color) { |
129 | 678 super(color); |
679 } | |
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680 |
129 | 681 /* |
682 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#install(dwtx.jface.text.ITextViewer) | |
683 */ | |
684 public void install(ITextViewer viewer) { | |
685 super.install(viewer); | |
686 fTextViewer= viewer; | |
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687 |
129 | 688 fManager= new MultipleHyperlinkHoverManager(new MultipleHyperlinkHover(), fTextViewer, this); |
689 fManager.install(viewer.getTextWidget()); | |
690 fManager.setSizeConstraints(100, 12, false, true); | |
691 } | |
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692 |
129 | 693 /* |
694 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#uninstall() | |
695 */ | |
696 public void uninstall() { | |
697 super.uninstall(); | |
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698 |
129 | 699 if (fTextViewer !is null) { |
700 fManager.dispose(); | |
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701 |
129 | 702 fTextViewer= null; |
703 } | |
704 } | |
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705 |
129 | 706 /* |
707 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#canShowMultipleHyperlinks() | |
708 */ | |
709 public bool canShowMultipleHyperlinks() { | |
710 return true; | |
711 } | |
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712 |
129 | 713 /* |
714 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#canHideHyperlinks() | |
715 */ | |
716 public bool canHideHyperlinks() { | |
717 return !fManager.isInformationControlVisible(); | |
718 } | |
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719 |
129 | 720 /* |
721 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#hideHyperlinks() | |
722 */ | |
723 public void hideHyperlinks() { | |
724 super.hideHyperlinks(); | |
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725 |
129 | 726 fHyperlinks= null; |
727 } | |
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728 |
129 | 729 /* |
730 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#showHyperlinks(dwtx.jface.text.hyperlink.IHyperlink[]) | |
731 */ | |
732 public void showHyperlinks(IHyperlink[] hyperlinks) { | |
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733 super.showHyperlinks([ hyperlinks[0] ]); |
129 | 734 |
735 fSubjectRegion= null; | |
736 fHyperlinks= hyperlinks; | |
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737 |
129 | 738 if (hyperlinks.length is 1) |
739 return; | |
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740 |
129 | 741 int start= hyperlinks[0].getHyperlinkRegion().getOffset(); |
742 int end= start + hyperlinks[0].getHyperlinkRegion().getLength(); | |
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743 |
129 | 744 for (int i= 1; i < hyperlinks.length; i++) { |
745 int hstart= hyperlinks[i].getHyperlinkRegion().getOffset(); | |
746 int hend= hstart + hyperlinks[i].getHyperlinkRegion().getLength(); | |
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747 |
129 | 748 start= Math.min(start, hstart); |
749 end= Math.max(end, hend); | |
750 } | |
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751 |
129 | 752 fSubjectRegion= new Region(start, end - start); |
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753 |
129 | 754 fManager.showInformation(); |
755 } | |
756 } |