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1 | /******************************************************************************* |
2 | * Copyright (c) 2010 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Matthew Khouzam - Initial API and implementation | |
11 | * Francois Chouinard - Refactoring, slider support, bug fixing | |
b21305c2 | 12 | * Patrick Tasse - Improvements and bug fixing |
7cc11afa | 13 | * Xavier Raynaud - Improvements |
9ccc6d01 FC |
14 | ******************************************************************************/ |
15 | ||
16 | package org.eclipse.linuxtools.tmf.ui.widgets; | |
17 | ||
18 | import org.eclipse.swt.SWT; | |
b21305c2 | 19 | import org.eclipse.swt.custom.TableEditor; |
9ccc6d01 FC |
20 | import org.eclipse.swt.events.ControlAdapter; |
21 | import org.eclipse.swt.events.ControlEvent; | |
22 | import org.eclipse.swt.events.KeyEvent; | |
23 | import org.eclipse.swt.events.KeyListener; | |
24 | import org.eclipse.swt.events.MouseEvent; | |
b21305c2 | 25 | import org.eclipse.swt.events.MouseListener; |
9ccc6d01 FC |
26 | import org.eclipse.swt.events.MouseWheelListener; |
27 | import org.eclipse.swt.events.SelectionAdapter; | |
28 | import org.eclipse.swt.events.SelectionEvent; | |
b21305c2 FC |
29 | import org.eclipse.swt.events.SelectionListener; |
30 | import org.eclipse.swt.graphics.Point; | |
7800a42f XR |
31 | import org.eclipse.swt.graphics.Rectangle; |
32 | import org.eclipse.swt.layout.FillLayout; | |
9ccc6d01 FC |
33 | import org.eclipse.swt.layout.GridData; |
34 | import org.eclipse.swt.layout.GridLayout; | |
35 | import org.eclipse.swt.widgets.Composite; | |
b21305c2 FC |
36 | import org.eclipse.swt.widgets.Control; |
37 | import org.eclipse.swt.widgets.Display; | |
9ccc6d01 | 38 | import org.eclipse.swt.widgets.Event; |
7800a42f | 39 | import org.eclipse.swt.widgets.Label; |
9ccc6d01 | 40 | import org.eclipse.swt.widgets.Listener; |
b21305c2 | 41 | import org.eclipse.swt.widgets.Menu; |
7800a42f | 42 | import org.eclipse.swt.widgets.Shell; |
9ccc6d01 FC |
43 | import org.eclipse.swt.widgets.Slider; |
44 | import org.eclipse.swt.widgets.Table; | |
45 | import org.eclipse.swt.widgets.TableColumn; | |
46 | import org.eclipse.swt.widgets.TableItem; | |
7800a42f | 47 | import org.eclipse.ui.PlatformUI; |
9ccc6d01 FC |
48 | |
49 | /** | |
50 | * <b><u>TmfVirtualTable</u></b> | |
51 | * <p> | |
52 | * TmfVirtualTable allows for the tabular display of arbitrarily large data sets | |
53 | * (well, up to Integer.MAX_VALUE or ~2G rows). | |
54 | * | |
55 | * It is essentially a Composite of Table and Slider, where the number of rows | |
56 | * in the table is set to fill the table display area. The slider is rank-based. | |
57 | * | |
58 | * It differs from Table with the VIRTUAL style flag where an empty entry is | |
59 | * created for each virtual row. This does not scale well for very large data sets. | |
b21305c2 FC |
60 | * |
61 | * Styles: | |
62 | * H_SCROLL, V_SCROLL, SINGLE, CHECK, FULL_SELECTION, HIDE_SELECTION, NO_SCROLL | |
9ccc6d01 FC |
63 | */ |
64 | public class TmfVirtualTable extends Composite { | |
65 | ||
66 | // The table | |
2cc874d6 FC |
67 | private Table fTable; |
68 | private int fTableRows = 0; // Number of table rows | |
b21305c2 FC |
69 | private int fFullyVisibleRows = 0; // Number of fully visible table rows |
70 | private int fFrozenRowCount = 0; // Number of frozen table rows at top of table | |
9ccc6d01 | 71 | |
2cc874d6 FC |
72 | private int fTableTopEventRank = 0; // Global rank of the first entry displayed |
73 | private int fSelectedEventRank = 0; // Global rank of the selected event | |
b21305c2 | 74 | private boolean fPendingSelection = false; // Pending selection update |
2cc874d6 | 75 | |
9ccc6d01 | 76 | private int fTableItemCount = 0; |
9ccc6d01 FC |
77 | |
78 | // The slider | |
2cc874d6 | 79 | private Slider fSlider; |
9ccc6d01 | 80 | |
b21305c2 | 81 | private int fLinuxItemHeight = 0; // Calculated item height for Linux workaround |
7800a42f XR |
82 | private TooltipProvider tooltipProvider = null; |
83 | private IDoubleClickListener doubleClickListener = null; | |
b21305c2 | 84 | |
9ccc6d01 FC |
85 | // ------------------------------------------------------------------------ |
86 | // Constructor | |
87 | // ------------------------------------------------------------------------ | |
88 | ||
89 | /** | |
90 | * @param parent | |
91 | * @param style | |
92 | */ | |
93 | public TmfVirtualTable(Composite parent, int style) { | |
b21305c2 | 94 | super(parent, style & (~SWT.H_SCROLL) & (~SWT.V_SCROLL) & (~SWT.SINGLE) & (~SWT.FULL_SELECTION) & (~SWT.HIDE_SELECTION) & (~SWT.CHECK)); |
9ccc6d01 FC |
95 | |
96 | // Create the controls | |
b21305c2 FC |
97 | createTable(style & (SWT.H_SCROLL | SWT.SINGLE | SWT.FULL_SELECTION | SWT.HIDE_SELECTION | SWT.CHECK)); |
98 | createSlider(style & SWT.V_SCROLL); | |
99 | ||
100 | // Prevent the slider from being traversed | |
101 | setTabList(new Control[] { fTable }); | |
9ccc6d01 FC |
102 | |
103 | // Set the layout | |
104 | GridLayout gridLayout = new GridLayout(); | |
105 | gridLayout.numColumns = 2; | |
106 | gridLayout.horizontalSpacing = 0; | |
2cc874d6 FC |
107 | gridLayout.verticalSpacing = 0; |
108 | gridLayout.marginWidth = 0; | |
109 | gridLayout.marginHeight = 0; | |
9ccc6d01 FC |
110 | setLayout(gridLayout); |
111 | ||
112 | GridData tableGridData = new GridData(SWT.FILL, SWT.FILL, true, true); | |
113 | fTable.setLayoutData(tableGridData); | |
114 | ||
115 | GridData sliderGridData = new GridData(SWT.FILL, SWT.FILL, false, true); | |
116 | fSlider.setLayoutData(sliderGridData); | |
117 | ||
118 | // Add the listeners | |
2cc874d6 | 119 | fTable.addMouseWheelListener(new MouseWheelListener() { |
d4011df2 | 120 | @Override |
9ccc6d01 | 121 | public void mouseScrolled(MouseEvent event) { |
b21305c2 FC |
122 | if (fTableItemCount <= fFullyVisibleRows) { |
123 | return; | |
124 | } | |
2cc874d6 FC |
125 | fTableTopEventRank -= event.count; |
126 | if (fTableTopEventRank < 0) { | |
127 | fTableTopEventRank = 0; | |
128 | } | |
b21305c2 | 129 | int latestFirstRowOffset = fTableItemCount - fFullyVisibleRows; |
2cc874d6 FC |
130 | if (fTableTopEventRank > latestFirstRowOffset) { |
131 | fTableTopEventRank = latestFirstRowOffset; | |
9ccc6d01 | 132 | } |
2cc874d6 FC |
133 | |
134 | fSlider.setSelection(fTableTopEventRank); | |
135 | refreshTable(); | |
9ccc6d01 FC |
136 | } |
137 | }); | |
138 | ||
b21305c2 FC |
139 | fTable.addListener(SWT.MouseWheel, new Listener() { |
140 | // disable mouse scroll of horizontal scroll bar | |
141 | @Override | |
142 | public void handleEvent(Event event) { | |
143 | event.doit = false; | |
144 | } | |
145 | }); | |
146 | ||
147 | fTable.addControlListener(new ControlAdapter() { | |
148 | @Override | |
149 | public void controlResized(ControlEvent event) { | |
150 | int tableHeight = Math.max(0, fTable.getClientArea().height - fTable.getHeaderHeight()); | |
151 | fFullyVisibleRows = tableHeight / getItemHeight(); | |
152 | if (fTableItemCount > 0) { | |
153 | fSlider.setThumb(Math.max(1, Math.min(fTableRows, fFullyVisibleRows))); | |
154 | } | |
155 | } | |
156 | }); | |
7800a42f | 157 | // Implement a "fake" tooltip |
828e5592 | 158 | final String TOOLTIP_DATA_KEY = "_TABLEITEM"; //$NON-NLS-1$ |
7800a42f XR |
159 | final Listener labelListener = new Listener () { |
160 | public void handleEvent (Event event) { | |
161 | Label label = (Label)event.widget; | |
162 | Shell shell = label.getShell (); | |
163 | switch (event.type) { | |
164 | case SWT.MouseDown: | |
165 | Event e = new Event (); | |
166 | e.item = (TableItem) label.getData (TOOLTIP_DATA_KEY); | |
167 | // Assuming table is single select, set the selection as if | |
168 | // the mouse down event went through to the table | |
169 | fTable.setSelection (new TableItem [] {(TableItem) e.item}); | |
170 | fTable.notifyListeners (SWT.Selection, e); | |
171 | shell.dispose (); | |
172 | fTable.setFocus(); | |
173 | break; | |
174 | case SWT.MouseExit: | |
175 | case SWT.MouseWheel: | |
176 | shell.dispose (); | |
177 | break; | |
178 | } | |
179 | } | |
180 | }; | |
181 | ||
182 | Listener tableListener = new Listener () { | |
183 | Shell tip = null; | |
184 | Label label = null; | |
185 | public void handleEvent (Event event) { | |
186 | switch (event.type) { | |
187 | case SWT.Dispose: | |
188 | case SWT.KeyDown: | |
189 | case SWT.MouseMove: { | |
190 | if (tip == null) break; | |
191 | tip.dispose (); | |
192 | tip = null; | |
193 | label = null; | |
194 | break; | |
195 | } | |
196 | case SWT.MouseHover: { | |
197 | TableItem item = fTable.getItem (new Point(event.x, event.y)); | |
198 | if (item != null) { | |
199 | for(int i=0;i<fTable.getColumnCount();i++){ | |
200 | Rectangle bounds = item.getBounds(i); | |
201 | if (bounds.contains(event.x,event.y)){ | |
202 | if (tip != null && !tip.isDisposed()) tip.dispose(); | |
203 | if (tooltipProvider == null) { | |
204 | return; | |
205 | } else { | |
206 | String tooltipText = tooltipProvider.getTooltip(i, item.getData()); | |
207 | if (tooltipText == null) return; | |
208 | tip = new Shell(fTable.getShell(), SWT.ON_TOP | SWT.NO_FOCUS | SWT.TOOL); | |
209 | tip.setBackground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); | |
210 | FillLayout layout = new FillLayout(); | |
211 | layout.marginWidth = 2; | |
212 | tip.setLayout(layout); | |
213 | label = new Label(tip, SWT.WRAP); | |
214 | label.setForeground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND)); | |
215 | label.setBackground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); | |
216 | label.setData(TOOLTIP_DATA_KEY, item); | |
217 | label.setText(tooltipText); | |
218 | ||
219 | label.addListener(SWT.MouseExit, labelListener); | |
220 | label.addListener(SWT.MouseDown, labelListener); | |
221 | label.addListener(SWT.MouseWheel, labelListener); | |
222 | Point size = tip.computeSize(SWT.DEFAULT, SWT.DEFAULT); | |
223 | Point pt = fTable.toDisplay(bounds.x, bounds.y); | |
224 | tip.setBounds(pt.x, pt.y, size.x, size.y); | |
225 | tip.setVisible(true); | |
226 | } | |
227 | break; | |
228 | } | |
229 | } | |
230 | } | |
231 | } | |
232 | } | |
233 | } | |
234 | }; | |
235 | fTable.addListener(SWT.Dispose, tableListener); | |
236 | fTable.addListener(SWT.KeyDown, tableListener); | |
237 | fTable.addListener(SWT.MouseMove, tableListener); | |
238 | fTable.addListener(SWT.MouseHover, tableListener); | |
9ccc6d01 FC |
239 | addControlListener(new ControlAdapter() { |
240 | @Override | |
241 | public void controlResized(ControlEvent event) { | |
242 | resize(); | |
243 | } | |
b21305c2 | 244 | }); |
9ccc6d01 FC |
245 | |
246 | // And display | |
247 | refresh(); | |
248 | } | |
249 | ||
250 | // ------------------------------------------------------------------------ | |
251 | // Table handling | |
252 | // ------------------------------------------------------------------------ | |
253 | ||
254 | /** | |
255 | * Create the table and add listeners | |
256 | */ | |
2cc874d6 | 257 | private void createTable(int style) { |
b21305c2 | 258 | fTable = new Table(this, style | SWT.NO_SCROLL); |
9ccc6d01 FC |
259 | |
260 | fTable.addSelectionListener(new SelectionAdapter() { | |
261 | @Override | |
262 | public void widgetSelected(SelectionEvent event) { | |
b21305c2 FC |
263 | if (fTable.getSelectionIndices().length > 0) { |
264 | handleTableSelection(); | |
265 | } | |
9ccc6d01 FC |
266 | } |
267 | }); | |
268 | ||
2cc874d6 | 269 | fTable.addKeyListener(new KeyListener() { |
d4011df2 | 270 | @Override |
9ccc6d01 FC |
271 | public void keyPressed(KeyEvent event) { |
272 | handleTableKeyEvent(event); | |
273 | } | |
d4011df2 | 274 | @Override |
9ccc6d01 FC |
275 | public void keyReleased(KeyEvent event) { |
276 | } | |
277 | }); | |
7800a42f XR |
278 | |
279 | fTable.addListener( | |
280 | SWT.MouseDoubleClick, new Listener() { | |
281 | @Override | |
282 | public void handleEvent(Event event) { | |
283 | if (doubleClickListener != null) { | |
284 | TableItem item = fTable.getItem (new Point (event.x, event.y)); | |
285 | if (item != null) { | |
286 | for(int i=0;i<fTable.getColumnCount();i++){ | |
287 | Rectangle bounds = item.getBounds(i); | |
288 | if (bounds.contains(event.x,event.y)){ | |
289 | doubleClickListener.handleDoubleClick(TmfVirtualTable.this, item, i); | |
290 | break; | |
291 | } | |
292 | } | |
293 | } | |
294 | } | |
295 | } | |
296 | } | |
297 | ); | |
b21305c2 | 298 | } |
9ccc6d01 FC |
299 | |
300 | /** | |
301 | * Update the rows and selected item | |
302 | */ | |
303 | private void handleTableSelection() { | |
b21305c2 FC |
304 | int selectedRow = fTable.getSelectionIndices()[0]; |
305 | if (selectedRow < fFrozenRowCount) { | |
306 | fSelectedEventRank = selectedRow; | |
307 | } else { | |
308 | fSelectedEventRank = fTableTopEventRank + selectedRow; | |
309 | } | |
310 | ||
311 | /* | |
312 | * Feature in Windows. When a partially visible table item is selected, | |
313 | * after ~500 ms the top index is changed to ensure the selected item is | |
314 | * fully visible. This leaves a blank space at the bottom of the virtual | |
315 | * table. The workaround is to update the top event rank, refresh the | |
316 | * table and reset the top index to 0 after a sufficient delay. | |
317 | */ | |
318 | if (selectedRow >= fFullyVisibleRows) { | |
319 | final Display display = fTable.getDisplay(); | |
320 | Thread thread = new Thread("Top index check") { //$NON-NLS-1$ | |
321 | @Override | |
322 | public void run() { | |
323 | try { | |
324 | Thread.sleep(600); | |
325 | } catch (InterruptedException e) { | |
326 | e.printStackTrace(); | |
327 | } | |
328 | display.asyncExec(new Runnable() { | |
329 | @Override | |
330 | public void run() { | |
331 | if (fTable.isDisposed()) return; | |
332 | int topIndex = fTable.getTopIndex(); | |
333 | if (topIndex != 0) { | |
334 | fTableTopEventRank += topIndex; | |
335 | refreshTable(); | |
336 | fSlider.setSelection(fTableTopEventRank); | |
337 | fTable.setTopIndex(0); | |
338 | } | |
339 | } | |
340 | }); | |
341 | } | |
342 | }; | |
343 | thread.start(); | |
344 | } | |
9ccc6d01 FC |
345 | } |
346 | ||
347 | /** | |
348 | * Handle key-based navigation in table. | |
349 | * | |
9ccc6d01 FC |
350 | * @param event |
351 | */ | |
352 | private void handleTableKeyEvent(KeyEvent event) { | |
353 | ||
2cc874d6 | 354 | int lastEventRank = fTableItemCount - 1; |
b21305c2 | 355 | int lastPageTopEntryRank = Math.max(0, fTableItemCount - fFullyVisibleRows); |
9ccc6d01 | 356 | |
b21305c2 FC |
357 | int previousSelectedEventRank = fSelectedEventRank; |
358 | int selectedRow = fSelectedEventRank - fTableTopEventRank; | |
2cc874d6 FC |
359 | boolean needsRefresh = false; |
360 | ||
2cc874d6 FC |
361 | // In all case, perform the following steps: |
362 | // - Update the selected entry rank (within valid range) | |
363 | // - Update the selected row | |
364 | // - Update the page's top entry if necessary (which also adjusts the selected row) | |
365 | // - If the top displayed entry was changed, table refresh is needed | |
9ccc6d01 FC |
366 | switch (event.keyCode) { |
367 | ||
368 | case SWT.ARROW_DOWN: { | |
b21305c2 | 369 | event.doit = false; |
2cc874d6 FC |
370 | if (fSelectedEventRank < lastEventRank) { |
371 | fSelectedEventRank++; | |
b21305c2 FC |
372 | selectedRow = fSelectedEventRank - fTableTopEventRank; |
373 | if (selectedRow >= fFullyVisibleRows) { | |
2cc874d6 | 374 | fTableTopEventRank++; |
2cc874d6 | 375 | needsRefresh = true; |
9ccc6d01 FC |
376 | } |
377 | } | |
378 | break; | |
379 | } | |
380 | ||
2cc874d6 | 381 | case SWT.ARROW_UP: { |
b21305c2 | 382 | event.doit = false; |
2cc874d6 FC |
383 | if (fSelectedEventRank > 0) { |
384 | fSelectedEventRank--; | |
b21305c2 FC |
385 | selectedRow = fSelectedEventRank - fTableTopEventRank; |
386 | if (selectedRow < fFrozenRowCount && fTableTopEventRank > 0) { | |
2cc874d6 | 387 | fTableTopEventRank--; |
2cc874d6 | 388 | needsRefresh = true; |
9ccc6d01 | 389 | } |
9ccc6d01 FC |
390 | } |
391 | break; | |
392 | } | |
393 | ||
394 | case SWT.END: { | |
b21305c2 | 395 | event.doit = false; |
2cc874d6 FC |
396 | fTableTopEventRank = lastPageTopEntryRank; |
397 | fSelectedEventRank = lastEventRank; | |
2cc874d6 | 398 | needsRefresh = true; |
9ccc6d01 FC |
399 | break; |
400 | } | |
401 | ||
2cc874d6 | 402 | case SWT.HOME: { |
b21305c2 FC |
403 | event.doit = false; |
404 | fSelectedEventRank = fFrozenRowCount; | |
2cc874d6 | 405 | fTableTopEventRank = 0; |
b21305c2 | 406 | needsRefresh = true; |
9ccc6d01 FC |
407 | break; |
408 | } | |
409 | ||
2cc874d6 | 410 | case SWT.PAGE_DOWN: { |
b21305c2 | 411 | event.doit = false; |
2cc874d6 | 412 | if (fSelectedEventRank < lastEventRank) { |
b21305c2 | 413 | fSelectedEventRank += fFullyVisibleRows; |
2cc874d6 FC |
414 | if (fSelectedEventRank > lastEventRank) { |
415 | fSelectedEventRank = lastEventRank; | |
416 | } | |
b21305c2 FC |
417 | selectedRow = fSelectedEventRank - fTableTopEventRank; |
418 | if (selectedRow > fFullyVisibleRows - 1) { | |
419 | fTableTopEventRank += fFullyVisibleRows; | |
2cc874d6 FC |
420 | if (fTableTopEventRank > lastPageTopEntryRank) { |
421 | fTableTopEventRank = lastPageTopEntryRank; | |
422 | } | |
2cc874d6 | 423 | needsRefresh = true; |
9ccc6d01 | 424 | } |
9ccc6d01 FC |
425 | } |
426 | break; | |
427 | } | |
428 | ||
2cc874d6 | 429 | case SWT.PAGE_UP: { |
b21305c2 | 430 | event.doit = false; |
2cc874d6 | 431 | if (fSelectedEventRank > 0) { |
b21305c2 FC |
432 | fSelectedEventRank -= fFullyVisibleRows; |
433 | if (fSelectedEventRank < fFrozenRowCount) { | |
434 | fSelectedEventRank = fFrozenRowCount; | |
2cc874d6 | 435 | } |
b21305c2 FC |
436 | selectedRow = fSelectedEventRank - fTableTopEventRank; |
437 | if (selectedRow < 0) { | |
438 | fTableTopEventRank -= fFullyVisibleRows; | |
2cc874d6 FC |
439 | if (fTableTopEventRank < 0) { |
440 | fTableTopEventRank = 0; | |
441 | } | |
2cc874d6 FC |
442 | needsRefresh = true; |
443 | } | |
444 | } | |
9ccc6d01 FC |
445 | break; |
446 | } | |
b21305c2 FC |
447 | default: { |
448 | return; | |
449 | } | |
9ccc6d01 | 450 | } |
b21305c2 FC |
451 | |
452 | boolean done = true; | |
2cc874d6 | 453 | if (needsRefresh) { |
b21305c2 FC |
454 | done = refreshTable(); // false if table items not updated yet in this thread |
455 | } else { | |
456 | fTable.select(selectedRow); | |
457 | } | |
458 | ||
459 | if (fFullyVisibleRows < fTableItemCount) { | |
460 | fSlider.setSelection(fTableTopEventRank); | |
461 | } | |
462 | ||
463 | if (fSelectedEventRank != previousSelectedEventRank && fTable.getSelection().length > 0) { | |
464 | if (done) { | |
465 | Event e = new Event(); | |
466 | e.item = fTable.getSelection()[0]; | |
467 | fTable.notifyListeners(SWT.Selection, e); | |
468 | } else { | |
469 | fPendingSelection = true; | |
470 | } | |
471 | } | |
472 | } | |
473 | ||
474 | private boolean setDataItem(int index, TableItem item) { | |
475 | if (index != -1) { | |
476 | Event event = new Event(); | |
477 | event.item = item; | |
478 | if (index < fFrozenRowCount) { | |
479 | event.index = index; | |
480 | } else { | |
481 | event.index = index + fTableTopEventRank; | |
9ccc6d01 | 482 | } |
b21305c2 | 483 | event.doit = true; |
828e5592 | 484 | fTable.notifyListeners(SWT.SetData, event); |
b21305c2 | 485 | return event.doit; // false if table item not updated yet in this thread |
9ccc6d01 | 486 | } |
b21305c2 FC |
487 | return true; |
488 | } | |
bbb3457d | 489 | |
9ccc6d01 FC |
490 | // ------------------------------------------------------------------------ |
491 | // Slider handling | |
492 | // ------------------------------------------------------------------------ | |
493 | ||
b21305c2 FC |
494 | private void createSlider(int style) { |
495 | fSlider = new Slider(this, SWT.VERTICAL | SWT.NO_FOCUS); | |
9ccc6d01 FC |
496 | fSlider.setMinimum(0); |
497 | fSlider.setMaximum(0); | |
b21305c2 FC |
498 | if ((style & SWT.V_SCROLL) == 0) { |
499 | fSlider.setVisible(false); | |
500 | } | |
9ccc6d01 | 501 | |
9ccc6d01 | 502 | fSlider.addListener(SWT.Selection, new Listener() { |
d4011df2 | 503 | @Override |
9ccc6d01 FC |
504 | public void handleEvent(Event event) { |
505 | switch (event.detail) { | |
506 | case SWT.ARROW_DOWN: | |
507 | case SWT.ARROW_UP: | |
508 | case SWT.NONE: | |
509 | case SWT.END: | |
510 | case SWT.HOME: | |
511 | case SWT.PAGE_DOWN: | |
512 | case SWT.PAGE_UP: { | |
2cc874d6 FC |
513 | fTableTopEventRank = fSlider.getSelection(); |
514 | refreshTable(); | |
9ccc6d01 FC |
515 | break; |
516 | } | |
517 | } | |
518 | } | |
519 | }); | |
520 | } | |
521 | ||
522 | // ------------------------------------------------------------------------ | |
523 | // Simulated Table API | |
524 | // ------------------------------------------------------------------------ | |
525 | ||
526 | public void setHeaderVisible(boolean b) { | |
527 | fTable.setHeaderVisible(b); | |
528 | } | |
529 | ||
530 | public void setLinesVisible(boolean b) { | |
531 | fTable.setLinesVisible(b); | |
532 | } | |
533 | ||
534 | public TableItem[] getSelection() { | |
b21305c2 FC |
535 | return fTable.getSelection(); |
536 | } | |
537 | ||
828e5592 PT |
538 | @Override |
539 | public void addListener(int eventType, Listener listener) { | |
540 | fTable.addListener(eventType, listener); | |
541 | } | |
542 | ||
b21305c2 FC |
543 | @Override |
544 | public void addKeyListener(KeyListener listener) { | |
545 | fTable.addKeyListener(listener); | |
546 | } | |
547 | ||
828e5592 PT |
548 | |
549 | @Override | |
b21305c2 FC |
550 | public void addMouseListener(MouseListener listener) { |
551 | fTable.addMouseListener(listener); | |
552 | } | |
553 | ||
554 | public void addSelectionListener(SelectionListener listener) { | |
555 | fTable.addSelectionListener(listener); | |
556 | } | |
557 | ||
558 | @Override | |
559 | public void setMenu(Menu menu) { | |
560 | fTable.setMenu(menu); | |
561 | } | |
562 | ||
563 | public void clearAll() { | |
564 | setItemCount(0); | |
9ccc6d01 | 565 | } |
9ccc6d01 FC |
566 | |
567 | public void setItemCount(int nbItems) { | |
568 | nbItems = Math.max(0, nbItems); | |
b21305c2 | 569 | |
9ccc6d01 FC |
570 | if (nbItems != fTableItemCount) { |
571 | fTableItemCount = nbItems; | |
b21305c2 | 572 | fTable.remove(fTableItemCount, fTable.getItemCount() - 1); |
9ccc6d01 FC |
573 | fSlider.setMaximum(nbItems); |
574 | resize(); | |
b21305c2 FC |
575 | int tableHeight = Math.max(0, fTable.getClientArea().height - fTable.getHeaderHeight()); |
576 | fFullyVisibleRows = tableHeight / getItemHeight(); | |
577 | if (fTableItemCount > 0) { | |
578 | fSlider.setThumb(Math.max(1, Math.min(fTableRows, fFullyVisibleRows))); | |
579 | } | |
9ccc6d01 FC |
580 | } |
581 | } | |
582 | ||
b21305c2 FC |
583 | public int getItemCount() { |
584 | return fTableItemCount; | |
585 | } | |
586 | ||
9ccc6d01 | 587 | public int getItemHeight() { |
b21305c2 FC |
588 | /* |
589 | * Bug in Linux. The method getItemHeight doesn't always return the correct value. | |
590 | */ | |
591 | if (fLinuxItemHeight >= 0 && System.getProperty("os.name").contains("Linux")) { //$NON-NLS-1$ //$NON-NLS-2$ | |
592 | if (fLinuxItemHeight != 0) { | |
593 | return fLinuxItemHeight; | |
594 | } | |
595 | if (fTable.getItemCount() > 1) { | |
596 | int itemHeight = fTable.getItem(1).getBounds().y - fTable.getItem(0).getBounds().y; | |
597 | if (itemHeight > 0) { | |
598 | fLinuxItemHeight = itemHeight; | |
599 | return fLinuxItemHeight; | |
600 | } | |
601 | } | |
602 | } else { | |
603 | fLinuxItemHeight = -1; // Not Linux, don't perform os.name check anymore | |
604 | } | |
9ccc6d01 FC |
605 | return fTable.getItemHeight(); |
606 | } | |
607 | ||
608 | public int getTopIndex() { | |
b21305c2 | 609 | return fTableTopEventRank + fFrozenRowCount; |
9ccc6d01 FC |
610 | } |
611 | ||
612 | public void setTopIndex(int i) { | |
b21305c2 FC |
613 | if (fTableItemCount > 0) { |
614 | i = Math.min(i, fTableItemCount - 1); | |
615 | i = Math.max(i, fFrozenRowCount); | |
616 | ||
617 | fTableTopEventRank = i - fFrozenRowCount; | |
618 | if (fFullyVisibleRows < fTableItemCount) { | |
619 | fSlider.setSelection(fTableTopEventRank); | |
620 | } | |
621 | ||
622 | refreshTable(); | |
623 | } | |
9ccc6d01 | 624 | } |
b21305c2 | 625 | |
9ccc6d01 | 626 | public int indexOf(TableItem ti) { |
b21305c2 FC |
627 | int index = fTable.indexOf(ti); |
628 | if (index < fFrozenRowCount) { | |
629 | return index; | |
630 | } else { | |
631 | return (index - fFrozenRowCount) + getTopIndex(); | |
632 | } | |
9ccc6d01 | 633 | } |
b21305c2 | 634 | |
9ccc6d01 FC |
635 | public TableColumn[] getColumns() { |
636 | return fTable.getColumns(); | |
637 | } | |
638 | ||
b21305c2 FC |
639 | public TableItem getItem(Point point) { |
640 | return fTable.getItem(point); | |
641 | } | |
642 | ||
9ccc6d01 | 643 | private void resize() { |
9ccc6d01 | 644 | // Compute the numbers of rows that fit the new area |
b21305c2 FC |
645 | int tableHeight = Math.max(0, getSize().y - fTable.getHeaderHeight()); |
646 | int itemHeight = getItemHeight(); | |
647 | fTableRows = Math.min((tableHeight + itemHeight - 1) / itemHeight, fTableItemCount); | |
648 | ||
649 | if (fTableTopEventRank + fFullyVisibleRows > fTableItemCount) { | |
650 | // If we are at the end, get elements before to populate | |
651 | fTableTopEventRank = Math.max(0, fTableItemCount - fFullyVisibleRows); | |
652 | refreshTable(); | |
653 | } else if (fTableRows > fTable.getItemCount() || fTableItemCount < fTable.getItemCount()) { | |
654 | // Only refresh if new table items are needed or if table items need to be deleted | |
655 | refreshTable(); | |
9ccc6d01 FC |
656 | } |
657 | ||
9ccc6d01 FC |
658 | } |
659 | ||
660 | // ------------------------------------------------------------------------ | |
661 | // Controls interactions | |
662 | // ------------------------------------------------------------------------ | |
663 | ||
664 | @Override | |
665 | public boolean setFocus() { | |
666 | boolean isVisible = isVisible(); | |
667 | if (isVisible) { | |
668 | fTable.setFocus(); | |
669 | } | |
670 | return isVisible; | |
671 | } | |
672 | ||
673 | public void refresh() { | |
b21305c2 FC |
674 | boolean done = refreshTable(); |
675 | if (fPendingSelection && done) { | |
676 | fPendingSelection = false; | |
677 | if (fTable.getSelection().length > 0) { | |
678 | Event e = new Event(); | |
679 | e.item = fTable.getSelection()[0]; | |
680 | fTable.notifyListeners(SWT.Selection, e); | |
681 | } | |
682 | } | |
9ccc6d01 FC |
683 | } |
684 | ||
685 | public void setColumnHeaders(ColumnData columnData[]) { | |
686 | for (int i = 0; i < columnData.length; i++) { | |
687 | TableColumn column = new TableColumn(fTable, columnData[i].alignment, i); | |
688 | column.setText(columnData[i].header); | |
689 | if (columnData[i].width > 0) { | |
690 | column.setWidth(columnData[i].width); | |
691 | } else { | |
692 | column.pack(); | |
693 | } | |
694 | } | |
b21305c2 | 695 | } |
9ccc6d01 FC |
696 | |
697 | public int removeAll() { | |
b21305c2 | 698 | setItemCount(0); |
9ccc6d01 FC |
699 | fSlider.setMaximum(0); |
700 | fTable.removeAll(); | |
b21305c2 | 701 | fSelectedEventRank = fFrozenRowCount; |
9ccc6d01 FC |
702 | return 0; |
703 | } | |
704 | ||
b21305c2 FC |
705 | private boolean refreshTable() { |
706 | boolean done = true; | |
886b12b1 | 707 | for (int i = 0; i < fTableRows; i++) { |
b21305c2 FC |
708 | if (i + fTableTopEventRank < fTableItemCount) { |
709 | TableItem tableItem; | |
710 | if (i < fTable.getItemCount()) { | |
711 | tableItem = fTable.getItem(i); | |
712 | } else { | |
713 | tableItem = new TableItem(fTable, SWT.NONE); | |
714 | } | |
715 | done &= setDataItem(i, tableItem); // false if table item not updated yet in this thread | |
716 | } else { | |
717 | if (fTable.getItemCount() > fTableItemCount - fTableTopEventRank) { | |
718 | fTable.remove(fTableItemCount - fTableTopEventRank); | |
719 | } | |
720 | } | |
886b12b1 | 721 | } |
886b12b1 | 722 | |
b21305c2 FC |
723 | int lastRowOffset = fTableTopEventRank + fTableRows - 1; |
724 | if ((fSelectedEventRank >= fTableTopEventRank + fFrozenRowCount) && (fSelectedEventRank <= lastRowOffset)) { | |
725 | int selectedRow = fSelectedEventRank - fTableTopEventRank; | |
726 | fTable.select(selectedRow); | |
727 | } else if (fSelectedEventRank < fFrozenRowCount) { | |
728 | fTable.select(fSelectedEventRank); | |
9ccc6d01 | 729 | } else { |
b21305c2 | 730 | fTable.deselectAll(); |
9ccc6d01 | 731 | } |
b21305c2 FC |
732 | return done; |
733 | } | |
9ccc6d01 FC |
734 | |
735 | public void setSelection(int i) { | |
b21305c2 FC |
736 | if (fTableItemCount > 0) { |
737 | i = Math.min(i, fTableItemCount - 1); | |
9ccc6d01 | 738 | i = Math.max(i, 0); |
2cc874d6 FC |
739 | |
740 | fSelectedEventRank = i; | |
b21305c2 FC |
741 | if ((i < fTableTopEventRank + fFrozenRowCount && i >= fFrozenRowCount) || |
742 | (i >= fTableTopEventRank + fFullyVisibleRows)) { | |
743 | fTableTopEventRank = Math.max(0, i - fFrozenRowCount - fFullyVisibleRows / 2); | |
89dcf304 | 744 | } |
b21305c2 FC |
745 | if (fFullyVisibleRows < fTableItemCount) { |
746 | fSlider.setSelection(fTableTopEventRank); | |
2cc874d6 | 747 | } |
b21305c2 | 748 | |
2cc874d6 | 749 | refreshTable(); |
b21305c2 FC |
750 | |
751 | } | |
752 | } | |
753 | ||
754 | public int getSelectionIndex() { | |
755 | int index = fTable.getSelectionIndex(); | |
2d55fd20 FC |
756 | if (index == -1) { |
757 | return fSelectedEventRank; | |
758 | } | |
b21305c2 FC |
759 | if (index < fFrozenRowCount) { |
760 | return index; | |
761 | } else { | |
762 | return (index - fFrozenRowCount) + getTopIndex(); | |
9ccc6d01 FC |
763 | } |
764 | } | |
b21305c2 FC |
765 | |
766 | public void setFrozenRowCount(int count) { | |
767 | fFrozenRowCount = count; | |
768 | refreshTable(); | |
769 | } | |
9ccc6d01 | 770 | |
b21305c2 FC |
771 | public TableEditor createTableEditor() { |
772 | return new TableEditor(fTable); | |
773 | } | |
774 | ||
775 | public Control createTableEditorControl(Class<? extends Control> control) { | |
776 | try { | |
777 | return (Control) control.getConstructor(Composite.class, int.class).newInstance(new Object[] {fTable, SWT.NONE}); | |
778 | } catch (Exception e) { | |
779 | e.printStackTrace(); | |
780 | } | |
781 | return null; | |
782 | } | |
7800a42f XR |
783 | |
784 | /** | |
785 | * @return the tooltipProvider | |
786 | */ | |
787 | public TooltipProvider getTooltipProvider() { | |
788 | return tooltipProvider; | |
789 | } | |
790 | ||
791 | /** | |
792 | * @param tooltipProvider the tooltipProvider to set | |
793 | */ | |
794 | public void setTooltipProvider(TooltipProvider tooltipProvider) { | |
795 | this.tooltipProvider = tooltipProvider; | |
796 | } | |
797 | ||
798 | /** | |
799 | * @return the doubleClickListener | |
800 | */ | |
801 | public IDoubleClickListener getDoubleClickListener() { | |
802 | return doubleClickListener; | |
803 | } | |
804 | ||
805 | /** | |
806 | * @param doubleClickListener the doubleClickListener to set | |
807 | */ | |
808 | public void setDoubleClickListener(IDoubleClickListener doubleClickListener) { | |
809 | this.doubleClickListener = doubleClickListener; | |
810 | } | |
811 | ||
9ccc6d01 | 812 | } |