Commit | Line | Data |
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9ccc6d01 | 1 | /******************************************************************************* |
6817308e | 2 | * Copyright (c) 2010, 2014 Ericsson |
3934297e | 3 | * |
9ccc6d01 FC |
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 | |
3934297e | 8 | * |
9ccc6d01 FC |
9 | * Contributors: |
10 | * Matthew Khouzam - Initial API and implementation | |
3934297e | 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 | ||
2bdf0193 | 16 | package org.eclipse.tracecompass.tmf.ui.widgets.virtualtable; |
9ccc6d01 FC |
17 | |
18 | import org.eclipse.swt.SWT; | |
3f43dc48 | 19 | import org.eclipse.swt.SWTException; |
b21305c2 | 20 | import org.eclipse.swt.custom.TableEditor; |
9ccc6d01 FC |
21 | import org.eclipse.swt.events.ControlAdapter; |
22 | import org.eclipse.swt.events.ControlEvent; | |
3f43dc48 | 23 | import org.eclipse.swt.events.KeyAdapter; |
9ccc6d01 FC |
24 | import org.eclipse.swt.events.KeyEvent; |
25 | import org.eclipse.swt.events.KeyListener; | |
3f43dc48 | 26 | import org.eclipse.swt.events.MouseAdapter; |
9ccc6d01 | 27 | import org.eclipse.swt.events.MouseEvent; |
b21305c2 | 28 | import org.eclipse.swt.events.MouseListener; |
9ccc6d01 | 29 | import org.eclipse.swt.events.MouseWheelListener; |
dd03e2f1 PT |
30 | import org.eclipse.swt.events.PaintEvent; |
31 | import org.eclipse.swt.events.PaintListener; | |
9ccc6d01 FC |
32 | import org.eclipse.swt.events.SelectionAdapter; |
33 | import org.eclipse.swt.events.SelectionEvent; | |
b21305c2 FC |
34 | import org.eclipse.swt.events.SelectionListener; |
35 | import org.eclipse.swt.graphics.Point; | |
7800a42f XR |
36 | import org.eclipse.swt.graphics.Rectangle; |
37 | import org.eclipse.swt.layout.FillLayout; | |
9ccc6d01 FC |
38 | import org.eclipse.swt.layout.GridData; |
39 | import org.eclipse.swt.layout.GridLayout; | |
40 | import org.eclipse.swt.widgets.Composite; | |
b21305c2 | 41 | import org.eclipse.swt.widgets.Control; |
9ccc6d01 | 42 | import org.eclipse.swt.widgets.Event; |
7800a42f | 43 | import org.eclipse.swt.widgets.Label; |
9ccc6d01 | 44 | import org.eclipse.swt.widgets.Listener; |
b21305c2 | 45 | import org.eclipse.swt.widgets.Menu; |
7800a42f | 46 | import org.eclipse.swt.widgets.Shell; |
9ccc6d01 FC |
47 | import org.eclipse.swt.widgets.Slider; |
48 | import org.eclipse.swt.widgets.Table; | |
49 | import org.eclipse.swt.widgets.TableColumn; | |
50 | import org.eclipse.swt.widgets.TableItem; | |
2bdf0193 | 51 | import org.eclipse.tracecompass.internal.tmf.ui.Activator; |
7800a42f | 52 | import org.eclipse.ui.PlatformUI; |
9ccc6d01 FC |
53 | |
54 | /** | |
55 | * <b><u>TmfVirtualTable</u></b> | |
56 | * <p> | |
57 | * TmfVirtualTable allows for the tabular display of arbitrarily large data sets | |
58 | * (well, up to Integer.MAX_VALUE or ~2G rows). | |
3934297e | 59 | * |
9ccc6d01 FC |
60 | * It is essentially a Composite of Table and Slider, where the number of rows |
61 | * in the table is set to fill the table display area. The slider is rank-based. | |
3934297e | 62 | * |
9ccc6d01 FC |
63 | * It differs from Table with the VIRTUAL style flag where an empty entry is |
64 | * created for each virtual row. This does not scale well for very large data sets. | |
3934297e | 65 | * |
b21305c2 | 66 | * Styles: |
3f43dc48 | 67 | * H_SCROLL, V_SCROLL, SINGLE, MULTI, CHECK, FULL_SELECTION, HIDE_SELECTION, NO_SCROLL |
02023181 | 68 | * @author Matthew Khouzam, Francois Chouinard, Patrick Tasse, Xavier Raynaud |
3934297e | 69 | * @version $Revision: 1.0 |
9ccc6d01 FC |
70 | */ |
71 | public class TmfVirtualTable extends Composite { | |
72 | ||
631d853f PT |
73 | // The table |
74 | private Table fTable; | |
75 | private int fTableRows = 0; // Number of table rows | |
76 | private int fFullyVisibleRows = 0; // Number of fully visible table rows | |
77 | private int fFrozenRowCount = 0; // Number of frozen table rows at top of table | |
78 | ||
79 | private int fTableTopEventRank = 0; // Global rank of the first entry displayed | |
3f43dc48 PT |
80 | private int fSelectedEventRank = -1; // Global rank of the selected event |
81 | private int fSelectedBeginRank = -1; // Global rank of the selected begin event | |
631d853f PT |
82 | private boolean fPendingSelection = false; // Pending selection update |
83 | ||
dadf6e1a | 84 | private int fTableItemCount = 0; |
631d853f PT |
85 | |
86 | // The slider | |
87 | private Slider fSlider; | |
88 | ||
89 | private int fLinuxItemHeight = 0; // Calculated item height for Linux workaround | |
90 | private TooltipProvider tooltipProvider = null; | |
91 | private IDoubleClickListener doubleClickListener = null; | |
92 | ||
b06f64b7 PT |
93 | private boolean fResetTopIndex = false; // Flag to trigger reset of top index |
94 | private ControlAdapter fResizeListener; // Resize listener to update visible rows | |
6817308e | 95 | private ControlAdapter fColumnMoveListener; // Column move listener to redraw column headers |
c9787691 | 96 | |
631d853f PT |
97 | // ------------------------------------------------------------------------ |
98 | // Constructor | |
99 | // ------------------------------------------------------------------------ | |
100 | ||
101 | /** | |
3934297e AM |
102 | * Standard constructor |
103 | * | |
631d853f | 104 | * @param parent |
3934297e | 105 | * The parent composite object |
631d853f | 106 | * @param style |
3934297e | 107 | * The style to use |
631d853f PT |
108 | */ |
109 | public TmfVirtualTable(Composite parent, int style) { | |
3f43dc48 | 110 | super(parent, style & (~SWT.H_SCROLL) & (~SWT.V_SCROLL) & (~SWT.SINGLE) & (~SWT.MULTI) & (~SWT.FULL_SELECTION) & (~SWT.HIDE_SELECTION) & (~SWT.CHECK)); |
631d853f PT |
111 | |
112 | // Create the controls | |
3f43dc48 | 113 | createTable(style & (SWT.H_SCROLL | SWT.SINGLE | SWT.MULTI | SWT.FULL_SELECTION | SWT.HIDE_SELECTION | SWT.CHECK)); |
631d853f PT |
114 | createSlider(style & SWT.V_SCROLL); |
115 | ||
116 | // Prevent the slider from being traversed | |
117 | setTabList(new Control[] { fTable }); | |
118 | ||
119 | // Set the layout | |
120 | GridLayout gridLayout = new GridLayout(); | |
121 | gridLayout.numColumns = 2; | |
122 | gridLayout.horizontalSpacing = 0; | |
123 | gridLayout.verticalSpacing = 0; | |
124 | gridLayout.marginWidth = 0; | |
125 | gridLayout.marginHeight = 0; | |
126 | setLayout(gridLayout); | |
127 | ||
128 | GridData tableGridData = new GridData(SWT.FILL, SWT.FILL, true, true); | |
129 | fTable.setLayoutData(tableGridData); | |
130 | ||
131 | GridData sliderGridData = new GridData(SWT.FILL, SWT.FILL, false, true); | |
132 | fSlider.setLayoutData(sliderGridData); | |
133 | ||
134 | // Add the listeners | |
135 | fTable.addMouseWheelListener(new MouseWheelListener() { | |
136 | @Override | |
137 | public void mouseScrolled(MouseEvent event) { | |
138 | if (fTableItemCount <= fFullyVisibleRows) { | |
139 | return; | |
140 | } | |
141 | fTableTopEventRank -= event.count; | |
142 | if (fTableTopEventRank < 0) { | |
143 | fTableTopEventRank = 0; | |
144 | } | |
145 | int latestFirstRowOffset = fTableItemCount - fFullyVisibleRows; | |
146 | if (fTableTopEventRank > latestFirstRowOffset) { | |
147 | fTableTopEventRank = latestFirstRowOffset; | |
148 | } | |
149 | ||
150 | fSlider.setSelection(fTableTopEventRank); | |
151 | refreshTable(); | |
152 | } | |
153 | }); | |
154 | ||
155 | fTable.addListener(SWT.MouseWheel, new Listener() { | |
156 | // disable mouse scroll of horizontal scroll bar | |
157 | @Override | |
b21305c2 | 158 | public void handleEvent(Event event) { |
631d853f PT |
159 | event.doit = false; |
160 | } | |
161 | }); | |
162 | ||
b06f64b7 | 163 | fResizeListener = new ControlAdapter() { |
631d853f PT |
164 | @Override |
165 | public void controlResized(ControlEvent event) { | |
166 | int tableHeight = Math.max(0, fTable.getClientArea().height - fTable.getHeaderHeight()); | |
167 | fFullyVisibleRows = tableHeight / getItemHeight(); | |
168 | if (fTableItemCount > 0) { | |
169 | fSlider.setThumb(Math.max(1, Math.min(fTableRows, fFullyVisibleRows))); | |
170 | } | |
171 | } | |
b06f64b7 PT |
172 | }; |
173 | fTable.addControlListener(fResizeListener); | |
174 | ||
6817308e PT |
175 | fColumnMoveListener = new ControlAdapter() { |
176 | @Override | |
177 | public void controlMoved(ControlEvent e) { | |
178 | fTable.setHeaderVisible(false); | |
179 | fTable.setHeaderVisible(true); | |
180 | } | |
181 | }; | |
182 | ||
631d853f PT |
183 | // Implement a "fake" tooltip |
184 | final String TOOLTIP_DATA_KEY = "_TABLEITEM"; //$NON-NLS-1$ | |
dadf6e1a | 185 | final Listener labelListener = new Listener() { |
631d853f | 186 | @Override |
f4c52cea | 187 | public void handleEvent (Event event) { |
dadf6e1a EB |
188 | Label label = (Label) event.widget; |
189 | Shell shell = label.getShell(); | |
631d853f PT |
190 | switch (event.type) { |
191 | case SWT.MouseDown: | |
dadf6e1a EB |
192 | Event e = new Event(); |
193 | e.item = (TableItem) label.getData(TOOLTIP_DATA_KEY); | |
631d853f PT |
194 | // Assuming table is single select, set the selection as if |
195 | // the mouse down event went through to the table | |
dadf6e1a EB |
196 | fTable.setSelection(new TableItem [] {(TableItem) e.item}); |
197 | fTable.notifyListeners(SWT.Selection, e); | |
198 | shell.dispose(); | |
631d853f PT |
199 | fTable.setFocus(); |
200 | break; | |
201 | case SWT.MouseExit: | |
202 | case SWT.MouseWheel: | |
dadf6e1a | 203 | shell.dispose(); |
631d853f | 204 | break; |
abbdd66a AM |
205 | default: |
206 | break; | |
631d853f PT |
207 | } |
208 | } | |
209 | }; | |
210 | ||
dadf6e1a | 211 | Listener tableListener = new Listener() { |
631d853f PT |
212 | Shell tip = null; |
213 | Label label = null; | |
214 | @Override | |
dadf6e1a | 215 | public void handleEvent(Event event) { |
631d853f PT |
216 | switch (event.type) { |
217 | case SWT.Dispose: | |
218 | case SWT.KeyDown: | |
219 | case SWT.MouseMove: { | |
420bceb2 PT |
220 | if (tip == null) { |
221 | break; | |
222 | } | |
dadf6e1a | 223 | tip.dispose(); |
631d853f PT |
224 | tip = null; |
225 | label = null; | |
226 | break; | |
227 | } | |
228 | case SWT.MouseHover: { | |
dadf6e1a | 229 | TableItem item = fTable.getItem(new Point(event.x, event.y)); |
631d853f | 230 | if (item != null) { |
dadf6e1a | 231 | for (int i = 0; i < fTable.getColumnCount(); i++) { |
631d853f | 232 | Rectangle bounds = item.getBounds(i); |
dadf6e1a | 233 | if (bounds.contains(event.x, event.y)) { |
420bceb2 PT |
234 | if (tip != null && !tip.isDisposed()) { |
235 | tip.dispose(); | |
236 | } | |
631d853f PT |
237 | if (tooltipProvider == null) { |
238 | return; | |
631d853f | 239 | } |
abbdd66a AM |
240 | String tooltipText = tooltipProvider.getTooltip(i, item.getData()); |
241 | if (tooltipText == null) { | |
242 | return; | |
243 | } | |
244 | tip = new Shell(fTable.getShell(), SWT.ON_TOP | SWT.NO_FOCUS | SWT.TOOL); | |
245 | tip.setBackground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); | |
246 | FillLayout layout = new FillLayout(); | |
247 | layout.marginWidth = 2; | |
248 | tip.setLayout(layout); | |
249 | label = new Label(tip, SWT.WRAP); | |
250 | label.setForeground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND)); | |
251 | label.setBackground(PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); | |
252 | label.setData(TOOLTIP_DATA_KEY, item); | |
253 | label.setText(tooltipText); | |
254 | ||
255 | label.addListener(SWT.MouseExit, labelListener); | |
256 | label.addListener(SWT.MouseDown, labelListener); | |
257 | label.addListener(SWT.MouseWheel, labelListener); | |
258 | Point size = tip.computeSize(SWT.DEFAULT, SWT.DEFAULT); | |
259 | Point pt = fTable.toDisplay(bounds.x, bounds.y); | |
260 | tip.setBounds(pt.x, pt.y, size.x, size.y); | |
261 | tip.setVisible(true); | |
dadf6e1a EB |
262 | |
263 | // Item found, leave loop. | |
264 | break; | |
631d853f PT |
265 | } |
266 | } | |
267 | } | |
abbdd66a | 268 | break; |
631d853f | 269 | } |
abbdd66a AM |
270 | default: |
271 | break; | |
631d853f PT |
272 | } |
273 | } | |
274 | }; | |
275 | fTable.addListener(SWT.Dispose, tableListener); | |
276 | fTable.addListener(SWT.KeyDown, tableListener); | |
277 | fTable.addListener(SWT.MouseMove, tableListener); | |
278 | fTable.addListener(SWT.MouseHover, tableListener); | |
279 | addControlListener(new ControlAdapter() { | |
280 | @Override | |
281 | public void controlResized(ControlEvent event) { | |
282 | resize(); | |
420bceb2 PT |
283 | if (fTableItemCount > 0) { |
284 | fSlider.setThumb(Math.max(1, Math.min(fTableRows, fFullyVisibleRows))); | |
285 | } | |
631d853f PT |
286 | } |
287 | }); | |
288 | ||
289 | // And display | |
290 | refresh(); | |
291 | } | |
292 | ||
293 | // ------------------------------------------------------------------------ | |
294 | // Table handling | |
295 | // ------------------------------------------------------------------------ | |
296 | ||
297 | /** | |
298 | * Create the table and add listeners | |
3f43dc48 | 299 | * @param style int can be H_SCROLL, SINGLE, MULTI, FULL_SELECTION, HIDE_SELECTION, CHECK |
631d853f PT |
300 | */ |
301 | private void createTable(int style) { | |
302 | fTable = new Table(this, style | SWT.NO_SCROLL); | |
303 | ||
304 | fTable.addSelectionListener(new SelectionAdapter() { | |
305 | @Override | |
306 | public void widgetSelected(SelectionEvent event) { | |
3f43dc48 PT |
307 | if (event.item == null) { |
308 | // Override table selection from Select All action | |
309 | refreshSelection(); | |
631d853f PT |
310 | } |
311 | } | |
312 | }); | |
9ccc6d01 | 313 | |
3f43dc48 | 314 | fTable.addMouseListener(new MouseAdapter() { |
631d853f | 315 | @Override |
3f43dc48 PT |
316 | public void mouseDown(MouseEvent e) { |
317 | handleTableMouseEvent(e); | |
631d853f | 318 | } |
3f43dc48 PT |
319 | }); |
320 | ||
321 | fTable.addKeyListener(new KeyAdapter() { | |
631d853f | 322 | @Override |
3f43dc48 PT |
323 | public void keyPressed(KeyEvent event) { |
324 | handleTableKeyEvent(event); | |
631d853f PT |
325 | } |
326 | }); | |
7800a42f XR |
327 | |
328 | fTable.addListener( | |
631d853f PT |
329 | SWT.MouseDoubleClick, new Listener() { |
330 | @Override | |
331 | public void handleEvent(Event event) { | |
332 | if (doubleClickListener != null) { | |
dadf6e1a | 333 | TableItem item = fTable.getItem(new Point (event.x, event.y)); |
631d853f | 334 | if (item != null) { |
dadf6e1a | 335 | for (int i = 0; i < fTable.getColumnCount(); i++){ |
631d853f | 336 | Rectangle bounds = item.getBounds(i); |
dadf6e1a | 337 | if (bounds.contains(event.x, event.y)){ |
631d853f PT |
338 | doubleClickListener.handleDoubleClick(TmfVirtualTable.this, item, i); |
339 | break; | |
340 | } | |
341 | } | |
342 | } | |
343 | } | |
344 | } | |
345 | } | |
346 | ); | |
dd03e2f1 PT |
347 | |
348 | /* | |
c9787691 PT |
349 | * Feature in Windows. When a partially visible table item is selected, |
350 | * after ~500 ms the top index is changed to ensure the selected item is | |
351 | * fully visible. This leaves a blank space at the bottom of the virtual | |
352 | * table. The workaround is to reset the top index to 0 if it is not 0. | |
353 | * Also reset the top index to 0 if indicated by the flag that was set | |
354 | * at table selection of a partially visible table item. | |
dd03e2f1 PT |
355 | */ |
356 | fTable.addPaintListener(new PaintListener() { | |
357 | @Override | |
358 | public void paintControl(PaintEvent e) { | |
c9787691 PT |
359 | if (fTable.getTopIndex() != 0 || fResetTopIndex) { |
360 | fTable.setTopIndex(0); | |
361 | } | |
362 | fResetTopIndex = false; | |
dd03e2f1 PT |
363 | } |
364 | }); | |
631d853f PT |
365 | } |
366 | ||
367 | /** | |
3f43dc48 PT |
368 | * Handle mouse-based selection in table. |
369 | * | |
370 | * @param event the mouse event | |
631d853f | 371 | */ |
3f43dc48 PT |
372 | private void handleTableMouseEvent(MouseEvent event) { |
373 | TableItem item = fTable.getItem(new Point(event.x, event.y)); | |
374 | if (item == null) { | |
375 | return; | |
376 | } | |
377 | int selectedRow = indexOf(item); | |
90328647 PT |
378 | if (event.button == 1 || (event.button == 3 && |
379 | (selectedRow < Math.min(fSelectedBeginRank, fSelectedEventRank) || | |
380 | selectedRow > Math.max(fSelectedBeginRank, fSelectedEventRank)))) { | |
3f43dc48 PT |
381 | if (selectedRow >= 0) { |
382 | fSelectedEventRank = selectedRow; | |
383 | } else { | |
384 | fSelectedEventRank = -1; | |
385 | } | |
386 | if ((event.stateMask & SWT.SHIFT) == 0 || (fTable.getStyle() & SWT.MULTI) == 0 || fSelectedBeginRank == -1) { | |
387 | fSelectedBeginRank = fSelectedEventRank; | |
388 | } | |
631d853f | 389 | } |
3f43dc48 | 390 | refreshSelection(); |
c9787691 PT |
391 | |
392 | /* | |
393 | * Feature in Linux. When a partially visible table item is selected, | |
394 | * the origin is changed to ensure the selected item is fully visible. | |
395 | * This makes the first row partially visible. The solution is to force | |
396 | * reset the origin by setting the top index to 0. This should happen | |
397 | * only once at the next redraw by the paint listener. | |
398 | */ | |
399 | if (selectedRow >= fFullyVisibleRows) { | |
400 | fResetTopIndex = true; | |
401 | } | |
631d853f PT |
402 | } |
403 | ||
404 | /** | |
405 | * Handle key-based navigation in table. | |
3934297e | 406 | * |
3f43dc48 | 407 | * @param event the key event |
631d853f PT |
408 | */ |
409 | private void handleTableKeyEvent(KeyEvent event) { | |
410 | ||
411 | int lastEventRank = fTableItemCount - 1; | |
412 | int lastPageTopEntryRank = Math.max(0, fTableItemCount - fFullyVisibleRows); | |
413 | ||
414 | int previousSelectedEventRank = fSelectedEventRank; | |
3f43dc48 | 415 | int previousSelectedBeginRank = fSelectedBeginRank; |
631d853f PT |
416 | boolean needsRefresh = false; |
417 | ||
418 | // In all case, perform the following steps: | |
419 | // - Update the selected entry rank (within valid range) | |
420 | // - Update the selected row | |
421 | // - Update the page's top entry if necessary (which also adjusts the selected row) | |
422 | // - If the top displayed entry was changed, table refresh is needed | |
423 | switch (event.keyCode) { | |
424 | ||
425 | case SWT.ARROW_DOWN: { | |
426 | event.doit = false; | |
427 | if (fSelectedEventRank < lastEventRank) { | |
428 | fSelectedEventRank++; | |
3f43dc48 | 429 | int selectedRow = fSelectedEventRank - fTableTopEventRank; |
75c271cf | 430 | if (selectedRow == fFullyVisibleRows) { |
631d853f PT |
431 | fTableTopEventRank++; |
432 | needsRefresh = true; | |
75c271cf PT |
433 | } else if (selectedRow < fFrozenRowCount || selectedRow > fFullyVisibleRows) { |
434 | fTableTopEventRank = Math.max(0, Math.min(fSelectedEventRank - fFrozenRowCount, lastPageTopEntryRank)); | |
435 | needsRefresh = true; | |
631d853f PT |
436 | } |
437 | } | |
438 | break; | |
439 | } | |
440 | ||
441 | case SWT.ARROW_UP: { | |
442 | event.doit = false; | |
443 | if (fSelectedEventRank > 0) { | |
444 | fSelectedEventRank--; | |
3f43dc48 | 445 | int selectedRow = fSelectedEventRank - fTableTopEventRank; |
75c271cf | 446 | if (selectedRow == fFrozenRowCount - 1 && fTableTopEventRank > 0) { |
631d853f PT |
447 | fTableTopEventRank--; |
448 | needsRefresh = true; | |
75c271cf PT |
449 | } else if (selectedRow < fFrozenRowCount || selectedRow > fFullyVisibleRows) { |
450 | fTableTopEventRank = Math.max(0, Math.min(fSelectedEventRank - fFrozenRowCount, lastPageTopEntryRank)); | |
451 | needsRefresh = true; | |
631d853f PT |
452 | } |
453 | } | |
454 | break; | |
455 | } | |
456 | ||
457 | case SWT.END: { | |
458 | event.doit = false; | |
459 | fTableTopEventRank = lastPageTopEntryRank; | |
460 | fSelectedEventRank = lastEventRank; | |
461 | needsRefresh = true; | |
462 | break; | |
463 | } | |
464 | ||
465 | case SWT.HOME: { | |
466 | event.doit = false; | |
467 | fSelectedEventRank = fFrozenRowCount; | |
468 | fTableTopEventRank = 0; | |
469 | needsRefresh = true; | |
470 | break; | |
471 | } | |
472 | ||
473 | case SWT.PAGE_DOWN: { | |
474 | event.doit = false; | |
475 | if (fSelectedEventRank < lastEventRank) { | |
476 | fSelectedEventRank += fFullyVisibleRows; | |
477 | if (fSelectedEventRank > lastEventRank) { | |
478 | fSelectedEventRank = lastEventRank; | |
479 | } | |
3f43dc48 | 480 | int selectedRow = fSelectedEventRank - fTableTopEventRank; |
75c271cf | 481 | if (selectedRow > fFullyVisibleRows + fFrozenRowCount - 1 && selectedRow < 2 * fFullyVisibleRows) { |
631d853f PT |
482 | fTableTopEventRank += fFullyVisibleRows; |
483 | if (fTableTopEventRank > lastPageTopEntryRank) { | |
484 | fTableTopEventRank = lastPageTopEntryRank; | |
485 | } | |
486 | needsRefresh = true; | |
75c271cf PT |
487 | } else if (selectedRow < fFrozenRowCount || selectedRow >= 2 * fFullyVisibleRows) { |
488 | fTableTopEventRank = Math.max(0, Math.min(fSelectedEventRank - fFrozenRowCount, lastPageTopEntryRank)); | |
489 | needsRefresh = true; | |
631d853f PT |
490 | } |
491 | } | |
492 | break; | |
493 | } | |
494 | ||
495 | case SWT.PAGE_UP: { | |
496 | event.doit = false; | |
497 | if (fSelectedEventRank > 0) { | |
498 | fSelectedEventRank -= fFullyVisibleRows; | |
499 | if (fSelectedEventRank < fFrozenRowCount) { | |
500 | fSelectedEventRank = fFrozenRowCount; | |
501 | } | |
3f43dc48 | 502 | int selectedRow = fSelectedEventRank - fTableTopEventRank; |
75c271cf | 503 | if (selectedRow < fFrozenRowCount && selectedRow > -fFullyVisibleRows) { |
631d853f PT |
504 | fTableTopEventRank -= fFullyVisibleRows; |
505 | if (fTableTopEventRank < 0) { | |
506 | fTableTopEventRank = 0; | |
507 | } | |
508 | needsRefresh = true; | |
75c271cf PT |
509 | } else if (selectedRow <= -fFullyVisibleRows || selectedRow >= fFullyVisibleRows) { |
510 | fTableTopEventRank = Math.max(0, Math.min(fSelectedEventRank - fFrozenRowCount, lastPageTopEntryRank)); | |
511 | needsRefresh = true; | |
631d853f PT |
512 | } |
513 | } | |
514 | break; | |
515 | } | |
516 | default: { | |
517 | return; | |
518 | } | |
519 | } | |
520 | ||
3f43dc48 PT |
521 | if ((event.stateMask & SWT.SHIFT) == 0 || (fTable.getStyle() & SWT.MULTI) == 0 || fSelectedBeginRank == -1) { |
522 | fSelectedBeginRank = fSelectedEventRank; | |
523 | } | |
524 | ||
631d853f PT |
525 | boolean done = true; |
526 | if (needsRefresh) { | |
527 | done = refreshTable(); // false if table items not updated yet in this thread | |
528 | } else { | |
3f43dc48 | 529 | refreshSelection(); |
631d853f PT |
530 | } |
531 | ||
532 | if (fFullyVisibleRows < fTableItemCount) { | |
533 | fSlider.setSelection(fTableTopEventRank); | |
534 | } | |
535 | ||
3f43dc48 | 536 | if (fSelectedEventRank != previousSelectedEventRank || fSelectedBeginRank != previousSelectedBeginRank) { |
631d853f PT |
537 | if (done) { |
538 | Event e = new Event(); | |
3f43dc48 | 539 | e.item = fTable.getItem(fSelectedEventRank - fTableTopEventRank); |
631d853f PT |
540 | fTable.notifyListeners(SWT.Selection, e); |
541 | } else { | |
542 | fPendingSelection = true; | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
02023181 MK |
547 | /** |
548 | * Method setDataItem. | |
549 | * @param index int | |
550 | * @param item TableItem | |
551 | * @return boolean | |
552 | */ | |
631d853f PT |
553 | private boolean setDataItem(int index, TableItem item) { |
554 | if (index != -1) { | |
555 | Event event = new Event(); | |
556 | event.item = item; | |
557 | if (index < fFrozenRowCount) { | |
558 | event.index = index; | |
559 | } else { | |
560 | event.index = index + fTableTopEventRank; | |
561 | } | |
562 | event.doit = true; | |
563 | fTable.notifyListeners(SWT.SetData, event); | |
564 | return event.doit; // false if table item not updated yet in this thread | |
565 | } | |
566 | return true; | |
567 | } | |
568 | ||
569 | // ------------------------------------------------------------------------ | |
570 | // Slider handling | |
571 | // ------------------------------------------------------------------------ | |
572 | ||
02023181 MK |
573 | /** |
574 | * Method createSlider. | |
575 | * @param style int | |
576 | */ | |
631d853f PT |
577 | private void createSlider(int style) { |
578 | fSlider = new Slider(this, SWT.VERTICAL | SWT.NO_FOCUS); | |
579 | fSlider.setMinimum(0); | |
580 | fSlider.setMaximum(0); | |
581 | if ((style & SWT.V_SCROLL) == 0) { | |
582 | fSlider.setVisible(false); | |
583 | } | |
584 | ||
585 | fSlider.addListener(SWT.Selection, new Listener() { | |
586 | @Override | |
587 | public void handleEvent(Event event) { | |
588 | switch (event.detail) { | |
589 | case SWT.ARROW_DOWN: | |
590 | case SWT.ARROW_UP: | |
631d853f PT |
591 | case SWT.END: |
592 | case SWT.HOME: | |
593 | case SWT.PAGE_DOWN: | |
594 | case SWT.PAGE_UP: { | |
595 | fTableTopEventRank = fSlider.getSelection(); | |
596 | refreshTable(); | |
597 | break; | |
598 | } | |
874af45a PT |
599 | // Not handled because of bug on Linux described below. |
600 | case SWT.NONE: | |
abbdd66a AM |
601 | default: |
602 | break; | |
631d853f PT |
603 | } |
604 | } | |
605 | }); | |
874af45a PT |
606 | |
607 | /* | |
608 | * In Linux, the selection event above has event.detail set to SWT.NONE | |
609 | * instead of SWT.DRAG during dragging of the thumb. To prevent refresh | |
610 | * overflow, only update the table when the mouse button is released. | |
611 | */ | |
612 | fSlider.addMouseListener(new MouseAdapter() { | |
613 | @Override | |
614 | public void mouseUp(MouseEvent e) { | |
615 | fTableTopEventRank = fSlider.getSelection(); | |
616 | refreshTable(); | |
617 | } | |
618 | }); | |
619 | ||
631d853f PT |
620 | } |
621 | ||
622 | // ------------------------------------------------------------------------ | |
623 | // Simulated Table API | |
624 | // ------------------------------------------------------------------------ | |
625 | ||
2fcd5eea AM |
626 | /** |
627 | * Constructs a new TableColumn instance given a style value describing its | |
628 | * alignment behavior. The column is added to the end of the columns | |
629 | * maintained by the table. | |
630 | * | |
631 | * @param style | |
632 | * the alignment style | |
633 | * @return the new TableColumn | |
634 | * | |
635 | * @see SWT#LEFT | |
636 | * @see SWT#RIGHT | |
637 | * @see SWT#CENTER | |
2fcd5eea AM |
638 | */ |
639 | public TableColumn newTableColumn(int style) { | |
640 | TableColumn column = new TableColumn(fTable, style); | |
641 | ||
642 | /* | |
643 | * In Linux the table does not receive a control resized event when | |
644 | * a table column resize causes the horizontal scroll bar to become | |
645 | * visible or invisible, so a resize listener must be added to every | |
646 | * table column to properly update the number of fully visible rows. | |
647 | */ | |
648 | column.addControlListener(fResizeListener); | |
649 | ||
6817308e PT |
650 | /* |
651 | * Work around a display glitch (probably a GTK glitch) where | |
652 | * the moved column's header becomes invisible and unselectable | |
653 | * until you focus on another one. | |
654 | */ | |
655 | column.addControlListener(fColumnMoveListener); | |
656 | ||
2fcd5eea AM |
657 | return column; |
658 | } | |
659 | ||
02023181 MK |
660 | /** |
661 | * Method setHeaderVisible. | |
662 | * @param b boolean | |
663 | */ | |
631d853f PT |
664 | public void setHeaderVisible(boolean b) { |
665 | fTable.setHeaderVisible(b); | |
666 | } | |
667 | ||
02023181 MK |
668 | /** |
669 | * Method setLinesVisible. | |
670 | * @param b boolean | |
671 | */ | |
631d853f PT |
672 | public void setLinesVisible(boolean b) { |
673 | fTable.setLinesVisible(b); | |
674 | } | |
675 | ||
02023181 | 676 | /** |
3f43dc48 PT |
677 | * Returns an array of <code>TableItem</code>s that are currently selected |
678 | * in the receiver. The order of the items is unspecified. An empty array | |
679 | * indicates that no items are selected. | |
680 | * <p> | |
681 | * Note: This array only contains the visible selected items in the virtual | |
682 | * table. To get information about the full selection range, use | |
683 | * {@link #getSelectionIndices()}. | |
684 | * </p> | |
685 | * | |
686 | * @return an array representing the selection | |
687 | * | |
688 | * @exception SWTException <ul> | |
689 | * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
690 | * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
691 | * </ul> | |
02023181 | 692 | */ |
631d853f PT |
693 | public TableItem[] getSelection() { |
694 | return fTable.getSelection(); | |
695 | } | |
696 | ||
02023181 MK |
697 | /** |
698 | * Method addListener. | |
699 | * @param eventType int | |
700 | * @param listener Listener | |
701 | */ | |
631d853f | 702 | @Override |
828e5592 PT |
703 | public void addListener(int eventType, Listener listener) { |
704 | fTable.addListener(eventType, listener); | |
705 | } | |
631d853f | 706 | |
02023181 MK |
707 | /** |
708 | * Method addKeyListener. | |
709 | * @param listener KeyListener | |
710 | */ | |
631d853f PT |
711 | @Override |
712 | public void addKeyListener(KeyListener listener) { | |
713 | fTable.addKeyListener(listener); | |
714 | } | |
b21305c2 | 715 | |
02023181 MK |
716 | /** |
717 | * Method addMouseListener. | |
718 | * @param listener MouseListener | |
719 | */ | |
828e5592 | 720 | @Override |
631d853f PT |
721 | public void addMouseListener(MouseListener listener) { |
722 | fTable.addMouseListener(listener); | |
723 | } | |
724 | ||
02023181 MK |
725 | /** |
726 | * Method addSelectionListener. | |
727 | * @param listener SelectionListener | |
728 | */ | |
631d853f PT |
729 | public void addSelectionListener(SelectionListener listener) { |
730 | fTable.addSelectionListener(listener); | |
731 | } | |
732 | ||
02023181 MK |
733 | /** |
734 | * Method setMenu sets the menu | |
735 | * @param menu Menu the menu | |
736 | */ | |
631d853f PT |
737 | @Override |
738 | public void setMenu(Menu menu) { | |
739 | fTable.setMenu(menu); | |
740 | } | |
741 | ||
48da630d XR |
742 | /** |
743 | * Gets the menu of this table | |
744 | * @return a Menu | |
745 | */ | |
746 | @Override | |
747 | public Menu getMenu() { | |
748 | return fTable.getMenu(); | |
749 | } | |
750 | ||
02023181 | 751 | /** |
3934297e | 752 | * Method clearAll empties a table. |
02023181 | 753 | */ |
631d853f PT |
754 | public void clearAll() { |
755 | setItemCount(0); | |
756 | } | |
757 | ||
02023181 MK |
758 | /** |
759 | * Method setItemCount | |
760 | * @param nbItems int the number of items in the table | |
d5efe032 | 761 | * |
02023181 | 762 | */ |
631d853f | 763 | public void setItemCount(int nbItems) { |
41b5c37f | 764 | final int nb = Math.max(0, nbItems); |
631d853f | 765 | |
41b5c37f AM |
766 | if (nb != fTableItemCount) { |
767 | fTableItemCount = nb; | |
631d853f | 768 | fTable.remove(fTableItemCount, fTable.getItemCount() - 1); |
41b5c37f | 769 | fSlider.setMaximum(nb); |
631d853f PT |
770 | resize(); |
771 | int tableHeight = Math.max(0, fTable.getClientArea().height - fTable.getHeaderHeight()); | |
772 | fFullyVisibleRows = tableHeight / getItemHeight(); | |
773 | if (fTableItemCount > 0) { | |
774 | fSlider.setThumb(Math.max(1, Math.min(fTableRows, fFullyVisibleRows))); | |
775 | } | |
776 | } | |
777 | } | |
778 | ||
02023181 MK |
779 | /** |
780 | * Method getItemCount. | |
781 | * @return int the number of items in the table | |
782 | */ | |
631d853f PT |
783 | public int getItemCount() { |
784 | return fTableItemCount; | |
785 | } | |
786 | ||
02023181 MK |
787 | /** |
788 | * Method getItemHeight. | |
789 | * @return int the height of a table item in pixels. (may vary from one os to another) | |
790 | */ | |
631d853f PT |
791 | public int getItemHeight() { |
792 | /* | |
793 | * Bug in Linux. The method getItemHeight doesn't always return the correct value. | |
794 | */ | |
795 | if (fLinuxItemHeight >= 0 && System.getProperty("os.name").contains("Linux")) { //$NON-NLS-1$ //$NON-NLS-2$ | |
796 | if (fLinuxItemHeight != 0) { | |
797 | return fLinuxItemHeight; | |
798 | } | |
799 | if (fTable.getItemCount() > 1) { | |
800 | int itemHeight = fTable.getItem(1).getBounds().y - fTable.getItem(0).getBounds().y; | |
801 | if (itemHeight > 0) { | |
802 | fLinuxItemHeight = itemHeight; | |
803 | return fLinuxItemHeight; | |
804 | } | |
805 | } | |
806 | } else { | |
807 | fLinuxItemHeight = -1; // Not Linux, don't perform os.name check anymore | |
808 | } | |
809 | return fTable.getItemHeight(); | |
810 | } | |
811 | ||
02023181 MK |
812 | /** |
813 | * Method getHeaderHeight. | |
814 | * @return int get the height of the header in pixels. | |
815 | */ | |
ea08e8ed PT |
816 | public int getHeaderHeight() { |
817 | return fTable.getHeaderHeight(); | |
818 | } | |
819 | ||
02023181 MK |
820 | /** |
821 | * Method getTopIndex. | |
822 | * @return int get the first data item index, if you have a header it is offset. | |
823 | */ | |
631d853f PT |
824 | public int getTopIndex() { |
825 | return fTableTopEventRank + fFrozenRowCount; | |
826 | } | |
827 | ||
02023181 MK |
828 | /** |
829 | * Method setTopIndex. | |
41b5c37f | 830 | * @param index int suggested top index for the table. |
02023181 | 831 | */ |
41b5c37f | 832 | public void setTopIndex(int index) { |
631d853f | 833 | if (fTableItemCount > 0) { |
41b5c37f | 834 | int i = Math.min(index, fTableItemCount - 1); |
631d853f PT |
835 | i = Math.max(i, fFrozenRowCount); |
836 | ||
837 | fTableTopEventRank = i - fFrozenRowCount; | |
838 | if (fFullyVisibleRows < fTableItemCount) { | |
839 | fSlider.setSelection(fTableTopEventRank); | |
840 | } | |
841 | ||
842 | refreshTable(); | |
843 | } | |
844 | } | |
845 | ||
02023181 MK |
846 | /** |
847 | * Method indexOf. Return the index of a table item | |
848 | * @param ti TableItem the table item to search for in the table | |
3934297e | 849 | * @return int the index of the first match. (there should only be one match) |
02023181 | 850 | */ |
631d853f PT |
851 | public int indexOf(TableItem ti) { |
852 | int index = fTable.indexOf(ti); | |
853 | if (index < fFrozenRowCount) { | |
854 | return index; | |
631d853f | 855 | } |
abbdd66a | 856 | return (index - fFrozenRowCount) + getTopIndex(); |
631d853f PT |
857 | } |
858 | ||
02023181 MK |
859 | /** |
860 | * Method getColumns. | |
3934297e | 861 | * @return TableColumn[] the table columns |
02023181 | 862 | */ |
631d853f PT |
863 | public TableColumn[] getColumns() { |
864 | return fTable.getColumns(); | |
865 | } | |
866 | ||
6817308e PT |
867 | /** |
868 | * Returns an array of zero-relative integers that map | |
869 | * the creation order of the receiver's columns to the | |
870 | * order in which they are currently being displayed. | |
871 | * <p> | |
872 | * Specifically, the indices of the returned array represent | |
873 | * the current visual order of the columns, and the contents | |
874 | * of the array represent the creation order of the columns. | |
875 | * | |
876 | * @return the current visual order of the receiver's columns | |
877 | */ | |
878 | public int[] getColumnOrder() { | |
879 | return fTable.getColumnOrder(); | |
880 | } | |
881 | ||
882 | /** | |
883 | * Sets the order that the columns in the receiver should | |
884 | * be displayed in to the given argument which is described | |
885 | * in terms of the zero-relative ordering of when the columns | |
886 | * were added. | |
887 | * <p> | |
888 | * Specifically, the contents of the array represent the | |
889 | * original position of each column at the time its creation. | |
890 | * | |
891 | * @param order the new order to display the columns | |
892 | */ | |
893 | public void setColumnOrder(int[] order) { | |
894 | fTable.setColumnOrder(order); | |
895 | } | |
896 | ||
02023181 MK |
897 | /** |
898 | * Method getItem. | |
899 | * @param point Point the coordinates in the table | |
3934297e | 900 | * @return TableItem the corresponding table item |
02023181 | 901 | */ |
631d853f PT |
902 | public TableItem getItem(Point point) { |
903 | return fTable.getItem(point); | |
904 | } | |
905 | ||
02023181 MK |
906 | /** |
907 | * Method resize. | |
908 | */ | |
631d853f PT |
909 | private void resize() { |
910 | // Compute the numbers of rows that fit the new area | |
911 | int tableHeight = Math.max(0, getSize().y - fTable.getHeaderHeight()); | |
912 | int itemHeight = getItemHeight(); | |
913 | fTableRows = Math.min((tableHeight + itemHeight - 1) / itemHeight, fTableItemCount); | |
914 | ||
915 | if (fTableTopEventRank + fFullyVisibleRows > fTableItemCount) { | |
916 | // If we are at the end, get elements before to populate | |
917 | fTableTopEventRank = Math.max(0, fTableItemCount - fFullyVisibleRows); | |
918 | refreshTable(); | |
919 | } else if (fTableRows > fTable.getItemCount() || fTableItemCount < fTable.getItemCount()) { | |
920 | // Only refresh if new table items are needed or if table items need to be deleted | |
921 | refreshTable(); | |
922 | } | |
923 | ||
924 | } | |
925 | ||
926 | // ------------------------------------------------------------------------ | |
927 | // Controls interactions | |
928 | // ------------------------------------------------------------------------ | |
929 | ||
02023181 MK |
930 | /** |
931 | * Method setFocus. | |
932 | * @return boolean is this visible? | |
933 | */ | |
631d853f PT |
934 | @Override |
935 | public boolean setFocus() { | |
936 | boolean isVisible = isVisible(); | |
937 | if (isVisible) { | |
938 | fTable.setFocus(); | |
939 | } | |
940 | return isVisible; | |
941 | } | |
942 | ||
02023181 MK |
943 | /** |
944 | * Method refresh. | |
945 | */ | |
631d853f PT |
946 | public void refresh() { |
947 | boolean done = refreshTable(); | |
3f43dc48 PT |
948 | if (!done) { |
949 | return; | |
950 | } | |
dadf6e1a | 951 | if (fPendingSelection) { |
631d853f | 952 | fPendingSelection = false; |
3f43dc48 PT |
953 | TableItem item = null; |
954 | if (fSelectedEventRank >= 0 && fSelectedEventRank < fFrozenRowCount) { | |
955 | item = fTable.getItem(fSelectedEventRank); | |
956 | } else if (fSelectedEventRank >= fTableTopEventRank + fFrozenRowCount && fSelectedEventRank - fTableTopEventRank < fTable.getItemCount()) { | |
957 | item = fTable.getItem(fSelectedEventRank - fTableTopEventRank); | |
958 | } | |
959 | if (item != null) { | |
631d853f | 960 | Event e = new Event(); |
3f43dc48 | 961 | e.item = item; |
631d853f PT |
962 | fTable.notifyListeners(SWT.Selection, e); |
963 | } | |
964 | } | |
965 | } | |
966 | ||
02023181 MK |
967 | /** |
968 | * Method setColumnHeaders. | |
baafe54c AM |
969 | * |
970 | * @param columnData | |
971 | * ColumnData[] the columndata array. | |
02023181 | 972 | */ |
baafe54c | 973 | @Deprecated |
631d853f | 974 | public void setColumnHeaders(ColumnData columnData[]) { |
baafe54c AM |
975 | /* No-op */ |
976 | } | |
977 | ||
02023181 MK |
978 | /** |
979 | * Method removeAll. | |
980 | * @return int 0 the number of elements in the table | |
981 | */ | |
631d853f PT |
982 | public int removeAll() { |
983 | setItemCount(0); | |
984 | fSlider.setMaximum(0); | |
985 | fTable.removeAll(); | |
3f43dc48 PT |
986 | fSelectedEventRank = -1; |
987 | fSelectedBeginRank = fSelectedEventRank; | |
631d853f PT |
988 | return 0; |
989 | } | |
990 | ||
02023181 MK |
991 | /** |
992 | * Method refreshTable. | |
3f43dc48 | 993 | * @return true if all table items have been refreshed, false otherwise |
02023181 | 994 | */ |
631d853f PT |
995 | private boolean refreshTable() { |
996 | boolean done = true; | |
997 | for (int i = 0; i < fTableRows; i++) { | |
998 | if (i + fTableTopEventRank < fTableItemCount) { | |
999 | TableItem tableItem; | |
1000 | if (i < fTable.getItemCount()) { | |
1001 | tableItem = fTable.getItem(i); | |
1002 | } else { | |
1003 | tableItem = new TableItem(fTable, SWT.NONE); | |
1004 | } | |
1005 | done &= setDataItem(i, tableItem); // false if table item not updated yet in this thread | |
1006 | } else { | |
1007 | if (fTable.getItemCount() > fTableItemCount - fTableTopEventRank) { | |
1008 | fTable.remove(fTableItemCount - fTableTopEventRank); | |
1009 | } | |
1010 | } | |
1011 | } | |
3f43dc48 PT |
1012 | if (done) { |
1013 | refreshSelection(); | |
1014 | } else { | |
1015 | fTable.deselectAll(); | |
1016 | } | |
1017 | return done; | |
1018 | } | |
631d853f | 1019 | |
3f43dc48 | 1020 | private void refreshSelection() { |
631d853f | 1021 | int lastRowOffset = fTableTopEventRank + fTableRows - 1; |
3f43dc48 PT |
1022 | int startRank = Math.min(fSelectedBeginRank, fSelectedEventRank); |
1023 | int endRank = Math.max(fSelectedBeginRank, fSelectedEventRank); | |
1024 | int start = Integer.MAX_VALUE; | |
1025 | int end = Integer.MIN_VALUE; | |
1026 | if (startRank < fFrozenRowCount) { | |
1027 | start = startRank; | |
1028 | } else if (startRank < fTableTopEventRank + fFrozenRowCount) { | |
1029 | start = fFrozenRowCount; | |
1030 | } else if (startRank <= lastRowOffset) { | |
1031 | start = startRank - fTableTopEventRank; | |
1032 | } | |
1033 | if (endRank < fFrozenRowCount) { | |
1034 | end = endRank; | |
1035 | } else if (endRank < fTableTopEventRank + fFrozenRowCount) { | |
1036 | end = fFrozenRowCount - 1; | |
1037 | } else if (endRank <= lastRowOffset) { | |
1038 | end = endRank - fTableTopEventRank; | |
1039 | } else { | |
1040 | end = fTableRows - 1; | |
1041 | } | |
1042 | if (start <= end) { | |
1043 | fTable.setSelection(start, end); | |
1044 | if (startRank == fSelectedEventRank) { | |
1045 | fTable.select(start); | |
1046 | } else { | |
1047 | fTable.select(end); | |
1048 | } | |
631d853f PT |
1049 | } else { |
1050 | fTable.deselectAll(); | |
1051 | } | |
631d853f PT |
1052 | } |
1053 | ||
02023181 | 1054 | /** |
3f43dc48 PT |
1055 | * Selects the item at the given zero-relative index in the receiver. |
1056 | * The current selection is first cleared, then the new item is selected, | |
1057 | * and if necessary the receiver is scrolled to make the new selection visible. | |
1058 | * | |
1059 | * @param index the index of the item to select | |
1060 | * | |
1061 | * @exception SWTException <ul> | |
1062 | * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1063 | * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1064 | * </ul> | |
02023181 | 1065 | */ |
41b5c37f | 1066 | public void setSelection(int index) { |
631d853f | 1067 | if (fTableItemCount > 0) { |
41b5c37f | 1068 | int i = Math.min(index, fTableItemCount - 1); |
631d853f PT |
1069 | i = Math.max(i, 0); |
1070 | ||
1071 | fSelectedEventRank = i; | |
3f43dc48 | 1072 | fSelectedBeginRank = fSelectedEventRank; |
631d853f PT |
1073 | if ((i < fTableTopEventRank + fFrozenRowCount && i >= fFrozenRowCount) || |
1074 | (i >= fTableTopEventRank + fFullyVisibleRows)) { | |
faa38350 PT |
1075 | int lastPageTopEntryRank = Math.max(0, fTableItemCount - fFullyVisibleRows); |
1076 | fTableTopEventRank = Math.max(0, Math.min(lastPageTopEntryRank, i - fFrozenRowCount - fFullyVisibleRows / 2)); | |
631d853f PT |
1077 | } |
1078 | if (fFullyVisibleRows < fTableItemCount) { | |
1079 | fSlider.setSelection(fTableTopEventRank); | |
1080 | } | |
1081 | ||
1082 | refreshTable(); | |
631d853f PT |
1083 | } |
1084 | } | |
1085 | ||
02023181 | 1086 | /** |
3f43dc48 PT |
1087 | * Returns the zero-relative index of the item which is currently |
1088 | * selected in the receiver, or -1 if no item is selected. | |
1089 | * | |
1090 | * @return the index of the selected item | |
02023181 | 1091 | */ |
631d853f | 1092 | public int getSelectionIndex() { |
3f43dc48 PT |
1093 | return fSelectedEventRank; |
1094 | } | |
1095 | ||
1096 | /** | |
1097 | * Returns an index array representing the selection range. If there is a | |
1098 | * single item selected the array holds one index. If there is a selected | |
1099 | * range the first item in the array is the start index of the selection and | |
1100 | * the second item is the end index of the selection, which is the item most | |
1101 | * recently selected. The array is empty if no items are selected. | |
1102 | * <p> | |
1103 | * @return the array of indices of the selected items | |
3f43dc48 PT |
1104 | */ |
1105 | public int[] getSelectionIndices() { | |
1106 | if (fSelectedEventRank < 0 || fSelectedBeginRank < 0) { | |
1107 | return new int[] {}; | |
1108 | } else if (fSelectedEventRank == fSelectedBeginRank) { | |
1109 | return new int[] { fSelectedEventRank }; | |
631d853f | 1110 | } |
3f43dc48 | 1111 | return new int[] { fSelectedBeginRank, fSelectedEventRank }; |
631d853f PT |
1112 | } |
1113 | ||
02023181 MK |
1114 | /** |
1115 | * Method setFrozenRowCount. | |
1116 | * @param count int the number of rows to freeze from the top row | |
1117 | */ | |
631d853f PT |
1118 | public void setFrozenRowCount(int count) { |
1119 | fFrozenRowCount = count; | |
1120 | refreshTable(); | |
1121 | } | |
1122 | ||
02023181 MK |
1123 | /** |
1124 | * Method createTableEditor. | |
1125 | * @return a TableEditor of the table | |
1126 | */ | |
631d853f PT |
1127 | public TableEditor createTableEditor() { |
1128 | return new TableEditor(fTable); | |
1129 | } | |
1130 | ||
02023181 MK |
1131 | /** |
1132 | * Method createTableEditorControl. | |
1133 | * @param control Class<? extends Control> | |
1134 | * @return Control | |
1135 | */ | |
631d853f PT |
1136 | public Control createTableEditorControl(Class<? extends Control> control) { |
1137 | try { | |
420bceb2 | 1138 | return control.getConstructor(Composite.class, int.class).newInstance(new Object[] {fTable, SWT.NONE}); |
631d853f PT |
1139 | } catch (Exception e) { |
1140 | Activator.getDefault().logError("Error creating table editor control", e); //$NON-NLS-1$ | |
1141 | } | |
1142 | return null; | |
1143 | } | |
1144 | ||
1145 | /** | |
1146 | * @return the tooltipProvider | |
d5efe032 | 1147 | */ |
631d853f PT |
1148 | public TooltipProvider getTooltipProvider() { |
1149 | return tooltipProvider; | |
1150 | } | |
1151 | ||
1152 | /** | |
1153 | * @param tooltipProvider the tooltipProvider to set | |
1154 | */ | |
1155 | public void setTooltipProvider(TooltipProvider tooltipProvider) { | |
1156 | this.tooltipProvider = tooltipProvider; | |
1157 | } | |
1158 | ||
1159 | /** | |
1160 | * @return the doubleClickListener | |
d5efe032 | 1161 | */ |
631d853f PT |
1162 | public IDoubleClickListener getDoubleClickListener() { |
1163 | return doubleClickListener; | |
1164 | } | |
1165 | ||
1166 | /** | |
1167 | * @param doubleClickListener the doubleClickListener to set | |
1168 | */ | |
1169 | public void setDoubleClickListener(IDoubleClickListener doubleClickListener) { | |
1170 | this.doubleClickListener = doubleClickListener; | |
1171 | } | |
1172 | ||
9ccc6d01 | 1173 | } |