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837a2f8c | 1 | /******************************************************************************* |
f8840316 | 2 | * Copyright (c) 2012, 2013 Ericsson, others |
837a2f8c PT |
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 | * Patrick Tasse - Initial API and implementation | |
f8840316 | 11 | * François Rajotte - Filter implementation |
bec1f1ac | 12 | * Geneviève Bastien - Add event links between entries |
837a2f8c PT |
13 | *******************************************************************************/ |
14 | ||
15 | package org.eclipse.linuxtools.tmf.ui.widgets.timegraph; | |
16 | ||
17 | import java.util.ArrayList; | |
18 | import java.util.Arrays; | |
19 | import java.util.HashMap; | |
6ac5a950 AM |
20 | import java.util.List; |
21 | import java.util.Map; | |
837a2f8c | 22 | |
6ac5a950 | 23 | import org.eclipse.jface.action.Action; |
837a2f8c PT |
24 | import org.eclipse.jface.viewers.ILabelProviderListener; |
25 | import org.eclipse.jface.viewers.ISelectionChangedListener; | |
26 | import org.eclipse.jface.viewers.IStructuredSelection; | |
27 | import org.eclipse.jface.viewers.ITableLabelProvider; | |
28 | import org.eclipse.jface.viewers.ITreeContentProvider; | |
29 | import org.eclipse.jface.viewers.ITreeViewerListener; | |
30 | import org.eclipse.jface.viewers.SelectionChangedEvent; | |
31 | import org.eclipse.jface.viewers.StructuredSelection; | |
32 | import org.eclipse.jface.viewers.TreeExpansionEvent; | |
33 | import org.eclipse.jface.viewers.TreeViewer; | |
34 | import org.eclipse.jface.viewers.Viewer; | |
6ac5a950 AM |
35 | import org.eclipse.jface.viewers.ViewerFilter; |
36 | import org.eclipse.linuxtools.internal.tmf.ui.Activator; | |
37 | import org.eclipse.linuxtools.internal.tmf.ui.ITmfImageConstants; | |
38 | import org.eclipse.linuxtools.internal.tmf.ui.Messages; | |
39 | import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.dialogs.TimeGraphFilterDialog; | |
bec1f1ac | 40 | import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ILinkEvent; |
837a2f8c PT |
41 | import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry; |
42 | import org.eclipse.swt.SWT; | |
43 | import org.eclipse.swt.custom.SashForm; | |
44 | import org.eclipse.swt.events.ControlAdapter; | |
45 | import org.eclipse.swt.events.ControlEvent; | |
46 | import org.eclipse.swt.events.MouseEvent; | |
47 | import org.eclipse.swt.events.MouseTrackAdapter; | |
48 | import org.eclipse.swt.events.MouseWheelListener; | |
49 | import org.eclipse.swt.events.PaintEvent; | |
50 | import org.eclipse.swt.events.PaintListener; | |
51 | import org.eclipse.swt.events.SelectionAdapter; | |
52 | import org.eclipse.swt.events.SelectionEvent; | |
53 | import org.eclipse.swt.graphics.Image; | |
54 | import org.eclipse.swt.graphics.Point; | |
55 | import org.eclipse.swt.layout.FillLayout; | |
56 | import org.eclipse.swt.widgets.Composite; | |
57 | import org.eclipse.swt.widgets.Display; | |
58 | import org.eclipse.swt.widgets.Event; | |
59 | import org.eclipse.swt.widgets.Listener; | |
60 | import org.eclipse.swt.widgets.Slider; | |
61 | import org.eclipse.swt.widgets.Tree; | |
62 | import org.eclipse.swt.widgets.TreeColumn; | |
63 | import org.eclipse.swt.widgets.TreeItem; | |
64 | ||
65 | /** | |
66 | * Time graph "combo" view (with the list/tree on the left and the gantt chart | |
67 | * on the right) | |
68 | * | |
69 | * @version 1.0 | |
70 | * @author Patrick Tasse | |
71 | */ | |
72 | public class TimeGraphCombo extends Composite { | |
73 | ||
74 | // ------------------------------------------------------------------------ | |
75 | // Constants | |
76 | // ------------------------------------------------------------------------ | |
77 | ||
78 | private static final Object FILLER = new Object(); | |
79 | ||
c004295c PT |
80 | private static final String ITEM_HEIGHT = "$height$"; //$NON-NLS-1$ |
81 | ||
837a2f8c PT |
82 | // ------------------------------------------------------------------------ |
83 | // Fields | |
84 | // ------------------------------------------------------------------------ | |
85 | ||
4999a196 | 86 | /** The tree viewer */ |
837a2f8c PT |
87 | private TreeViewer fTreeViewer; |
88 | ||
4999a196 | 89 | /** The time viewer */ |
837a2f8c PT |
90 | private TimeGraphViewer fTimeGraphViewer; |
91 | ||
4999a196 | 92 | /** The top-level input (children excluded) */ |
6ac5a950 AM |
93 | private List<? extends ITimeGraphEntry> fTopInput; |
94 | ||
4999a196 | 95 | /** The selection listener map */ |
507b1336 | 96 | private final Map<ITimeGraphSelectionListener, SelectionListenerWrapper> fSelectionListenerMap = new HashMap<>(); |
837a2f8c | 97 | |
4999a196 | 98 | /** The map of viewer filters */ |
507b1336 | 99 | private final Map<ViewerFilter, ViewerFilter> fViewerFilterMap = new HashMap<>(); |
6ac5a950 | 100 | |
4999a196 GB |
101 | /** |
102 | * Flag to block the tree selection changed listener when triggered by the | |
103 | * time graph combo | |
104 | */ | |
837a2f8c PT |
105 | private boolean fInhibitTreeSelection = false; |
106 | ||
4999a196 | 107 | /** Number of filler rows used by the tree content provider */ |
837a2f8c PT |
108 | private int fNumFillerRows; |
109 | ||
4999a196 | 110 | /** Calculated item height for Linux workaround */ |
837a2f8c PT |
111 | private int fLinuxItemHeight = 0; |
112 | ||
4999a196 | 113 | /** The button that opens the filter dialog */ |
6ac5a950 AM |
114 | private Action showFilterAction; |
115 | ||
4999a196 | 116 | /** The filter dialog */ |
6ac5a950 AM |
117 | private TimeGraphFilterDialog fFilterDialog; |
118 | ||
4999a196 | 119 | /** The filter generated from the filter dialog */ |
6ac5a950 AM |
120 | private RawViewerFilter fFilter; |
121 | ||
4999a196 GB |
122 | /** Default weight of each part of the sash */ |
123 | private static final int[] DEFAULT_WEIGHTS = { 1, 1 }; | |
124 | ||
837a2f8c PT |
125 | // ------------------------------------------------------------------------ |
126 | // Classes | |
127 | // ------------------------------------------------------------------------ | |
128 | ||
129 | /** | |
130 | * The TreeContentProviderWrapper is used to insert filler items after | |
131 | * the elements of the tree's real content provider. | |
132 | */ | |
133 | private class TreeContentProviderWrapper implements ITreeContentProvider { | |
134 | private final ITreeContentProvider contentProvider; | |
135 | ||
136 | public TreeContentProviderWrapper(ITreeContentProvider contentProvider) { | |
137 | this.contentProvider = contentProvider; | |
138 | } | |
139 | ||
140 | @Override | |
141 | public void dispose() { | |
142 | contentProvider.dispose(); | |
143 | } | |
144 | ||
145 | @Override | |
146 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
147 | contentProvider.inputChanged(viewer, oldInput, newInput); | |
148 | } | |
149 | ||
150 | @Override | |
151 | public Object[] getElements(Object inputElement) { | |
152 | Object[] elements = contentProvider.getElements(inputElement); | |
153 | // add filler elements to ensure alignment with time analysis viewer | |
f1fae91f | 154 | Object[] oElements = Arrays.copyOf(elements, elements.length + fNumFillerRows, Object[].class); |
837a2f8c PT |
155 | for (int i = 0; i < fNumFillerRows; i++) { |
156 | oElements[elements.length + i] = FILLER; | |
157 | } | |
158 | return oElements; | |
159 | } | |
160 | ||
161 | @Override | |
162 | public Object[] getChildren(Object parentElement) { | |
163 | if (parentElement instanceof ITimeGraphEntry) { | |
164 | return contentProvider.getChildren(parentElement); | |
165 | } | |
166 | return new Object[0]; | |
167 | } | |
168 | ||
169 | @Override | |
170 | public Object getParent(Object element) { | |
171 | if (element instanceof ITimeGraphEntry) { | |
172 | return contentProvider.getParent(element); | |
173 | } | |
174 | return null; | |
175 | } | |
176 | ||
177 | @Override | |
178 | public boolean hasChildren(Object element) { | |
179 | if (element instanceof ITimeGraphEntry) { | |
180 | return contentProvider.hasChildren(element); | |
181 | } | |
182 | return false; | |
183 | } | |
184 | } | |
185 | ||
186 | /** | |
187 | * The TreeLabelProviderWrapper is used to intercept the filler items | |
188 | * from the calls to the tree's real label provider. | |
189 | */ | |
190 | private class TreeLabelProviderWrapper implements ITableLabelProvider { | |
191 | private final ITableLabelProvider labelProvider; | |
192 | ||
193 | public TreeLabelProviderWrapper(ITableLabelProvider labelProvider) { | |
194 | this.labelProvider = labelProvider; | |
195 | } | |
196 | ||
197 | @Override | |
198 | public void addListener(ILabelProviderListener listener) { | |
199 | labelProvider.addListener(listener); | |
200 | } | |
201 | ||
202 | @Override | |
203 | public void dispose() { | |
204 | labelProvider.dispose(); | |
205 | } | |
206 | ||
207 | @Override | |
208 | public boolean isLabelProperty(Object element, String property) { | |
209 | if (element instanceof ITimeGraphEntry) { | |
210 | return labelProvider.isLabelProperty(element, property); | |
211 | } | |
212 | return false; | |
213 | } | |
214 | ||
215 | @Override | |
216 | public void removeListener(ILabelProviderListener listener) { | |
217 | labelProvider.removeListener(listener); | |
218 | } | |
219 | ||
220 | @Override | |
221 | public Image getColumnImage(Object element, int columnIndex) { | |
222 | if (element instanceof ITimeGraphEntry) { | |
223 | return labelProvider.getColumnImage(element, columnIndex); | |
224 | } | |
225 | return null; | |
226 | } | |
227 | ||
228 | @Override | |
229 | public String getColumnText(Object element, int columnIndex) { | |
230 | if (element instanceof ITimeGraphEntry) { | |
231 | return labelProvider.getColumnText(element, columnIndex); | |
232 | } | |
233 | return null; | |
234 | } | |
235 | ||
236 | } | |
237 | ||
238 | /** | |
239 | * The SelectionListenerWrapper is used to intercept the filler items from | |
240 | * the time graph combo's real selection listener, and to prevent double | |
241 | * notifications from being sent when selection changes in both tree and | |
242 | * time graph at the same time. | |
243 | */ | |
244 | private class SelectionListenerWrapper implements ISelectionChangedListener, ITimeGraphSelectionListener { | |
245 | private final ITimeGraphSelectionListener listener; | |
246 | private ITimeGraphEntry selection = null; | |
247 | ||
248 | public SelectionListenerWrapper(ITimeGraphSelectionListener listener) { | |
249 | this.listener = listener; | |
250 | } | |
251 | ||
252 | @Override | |
253 | public void selectionChanged(SelectionChangedEvent event) { | |
254 | if (fInhibitTreeSelection) { | |
255 | return; | |
256 | } | |
257 | Object element = ((IStructuredSelection) event.getSelection()).getFirstElement(); | |
258 | if (element instanceof ITimeGraphEntry) { | |
259 | ITimeGraphEntry entry = (ITimeGraphEntry) element; | |
260 | if (entry != selection) { | |
261 | selection = entry; | |
262 | listener.selectionChanged(new TimeGraphSelectionEvent(event.getSource(), selection)); | |
263 | } | |
264 | } | |
265 | } | |
266 | ||
267 | @Override | |
268 | public void selectionChanged(TimeGraphSelectionEvent event) { | |
269 | ITimeGraphEntry entry = event.getSelection(); | |
270 | if (entry != selection) { | |
271 | selection = entry; | |
272 | listener.selectionChanged(new TimeGraphSelectionEvent(event.getSource(), selection)); | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
6ac5a950 AM |
277 | /** |
278 | * The ViewerFilterWrapper is used to intercept the filler items from | |
279 | * the time graph combo's real ViewerFilters. These filler items should | |
280 | * always be visible. | |
281 | */ | |
282 | private class ViewerFilterWrapper extends ViewerFilter { | |
283 | ||
f1fae91f | 284 | private ViewerFilter fWrappedFilter; |
6ac5a950 AM |
285 | |
286 | ViewerFilterWrapper(ViewerFilter filter) { | |
287 | super(); | |
288 | this.fWrappedFilter = filter; | |
289 | } | |
290 | ||
291 | @Override | |
292 | public boolean select(Viewer viewer, Object parentElement, Object element) { | |
293 | if (element instanceof ITimeGraphEntry) { | |
294 | return fWrappedFilter.select(viewer, parentElement, element); | |
295 | } | |
296 | return true; | |
297 | } | |
298 | ||
299 | } | |
300 | ||
301 | /** | |
f8840316 FR |
302 | * This filter simply keeps a list of elements that should be filtered out. |
303 | * All the other elements will be shown. | |
8f28f9d8 | 304 | * By default and when the list is set to null, all elements are shown. |
6ac5a950 AM |
305 | */ |
306 | private class RawViewerFilter extends ViewerFilter { | |
307 | ||
f8840316 | 308 | private List<Object> fFiltered = null; |
6ac5a950 | 309 | |
f8840316 FR |
310 | public void setFiltered(List<Object> objects) { |
311 | fFiltered = objects; | |
6ac5a950 AM |
312 | } |
313 | ||
f8840316 FR |
314 | public List<Object> getFiltered() { |
315 | return fFiltered; | |
6ac5a950 AM |
316 | } |
317 | ||
318 | @Override | |
319 | public boolean select(Viewer viewer, Object parentElement, Object element) { | |
f8840316 | 320 | if (fFiltered == null) { |
8f28f9d8 PT |
321 | return true; |
322 | } | |
f8840316 | 323 | return !fFiltered.contains(element); |
6ac5a950 AM |
324 | } |
325 | } | |
326 | ||
837a2f8c PT |
327 | // ------------------------------------------------------------------------ |
328 | // Constructors | |
329 | // ------------------------------------------------------------------------ | |
330 | ||
331 | /** | |
332 | * Constructs a new instance of this class given its parent | |
333 | * and a style value describing its behavior and appearance. | |
334 | * | |
335 | * @param parent a widget which will be the parent of the new instance (cannot be null) | |
336 | * @param style the style of widget to construct | |
337 | */ | |
338 | public TimeGraphCombo(Composite parent, int style) { | |
4999a196 GB |
339 | this(parent, style, DEFAULT_WEIGHTS); |
340 | } | |
341 | ||
342 | /** | |
343 | * Constructs a new instance of this class given its parent and a style | |
344 | * value describing its behavior and appearance. | |
345 | * | |
346 | * @param parent | |
347 | * a widget which will be the parent of the new instance (cannot | |
348 | * be null) | |
349 | * @param style | |
350 | * the style of widget to construct | |
351 | * @param weights | |
352 | * The relative weights of each side of the sash form | |
353 | * @since 2.1 | |
354 | */ | |
355 | public TimeGraphCombo(Composite parent, int style, int[] weights) { | |
837a2f8c PT |
356 | super(parent, style); |
357 | setLayout(new FillLayout()); | |
358 | ||
359 | final SashForm sash = new SashForm(this, SWT.NONE); | |
360 | ||
361 | fTreeViewer = new TreeViewer(sash, SWT.FULL_SELECTION | SWT.H_SCROLL); | |
362 | final Tree tree = fTreeViewer.getTree(); | |
363 | tree.setHeaderVisible(true); | |
364 | tree.setLinesVisible(true); | |
365 | ||
366 | fTimeGraphViewer = new TimeGraphViewer(sash, SWT.NONE); | |
367 | fTimeGraphViewer.setItemHeight(getItemHeight(tree)); | |
368 | fTimeGraphViewer.setHeaderHeight(tree.getHeaderHeight()); | |
369 | fTimeGraphViewer.setBorderWidth(tree.getBorderWidth()); | |
370 | fTimeGraphViewer.setNameWidthPref(0); | |
371 | ||
6ac5a950 AM |
372 | fFilter = new RawViewerFilter(); |
373 | addFilter(fFilter); | |
374 | ||
375 | fFilterDialog = new TimeGraphFilterDialog(getShell()); | |
376 | ||
837a2f8c PT |
377 | // Feature in Windows. The tree vertical bar reappears when |
378 | // the control is resized so we need to hide it again. | |
379 | // Bug in Linux. The tree header height is 0 in constructor, | |
380 | // so we need to reset it later when the control is resized. | |
381 | tree.addControlListener(new ControlAdapter() { | |
f1fae91f | 382 | private int depth = 0; |
837a2f8c PT |
383 | @Override |
384 | public void controlResized(ControlEvent e) { | |
385 | if (depth == 0) { | |
386 | depth++; | |
387 | tree.getVerticalBar().setEnabled(false); | |
388 | // this can trigger controlResized recursively | |
389 | tree.getVerticalBar().setVisible(false); | |
390 | depth--; | |
391 | } | |
392 | fTimeGraphViewer.setHeaderHeight(tree.getHeaderHeight()); | |
393 | } | |
394 | }); | |
395 | ||
396 | // ensure synchronization of expanded items between tree and time graph | |
397 | fTreeViewer.addTreeListener(new ITreeViewerListener() { | |
398 | @Override | |
399 | public void treeCollapsed(TreeExpansionEvent event) { | |
400 | fTimeGraphViewer.setExpandedState((ITimeGraphEntry) event.getElement(), false); | |
f1fae91f | 401 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
402 | int topIndex = fTimeGraphViewer.getTopIndex(); |
403 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
404 | return; |
405 | } | |
d106a486 | 406 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
407 | tree.setTopItem(treeItem); |
408 | } | |
409 | ||
410 | @Override | |
411 | public void treeExpanded(TreeExpansionEvent event) { | |
e7708b02 PT |
412 | ITimeGraphEntry entry = (ITimeGraphEntry) event.getElement(); |
413 | fTimeGraphViewer.setExpandedState(entry, true); | |
414 | for (ITimeGraphEntry child : entry.getChildren()) { | |
415 | boolean expanded = fTreeViewer.getExpandedState(child); | |
416 | fTimeGraphViewer.setExpandedState(child, expanded); | |
417 | } | |
f1fae91f | 418 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
419 | int topIndex = fTimeGraphViewer.getTopIndex(); |
420 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
421 | return; |
422 | } | |
d106a486 | 423 | final TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
424 | // queue the top item update because the tree can change its top item |
425 | // autonomously immediately after the listeners have been notified | |
426 | getDisplay().asyncExec(new Runnable() { | |
427 | @Override | |
428 | public void run() { | |
429 | tree.setTopItem(treeItem); | |
430 | }}); | |
431 | } | |
432 | }); | |
433 | ||
434 | // ensure synchronization of expanded items between tree and time graph | |
435 | fTimeGraphViewer.addTreeListener(new ITimeGraphTreeListener() { | |
436 | @Override | |
437 | public void treeCollapsed(TimeGraphTreeExpansionEvent event) { | |
438 | fTreeViewer.setExpandedState(event.getEntry(), false); | |
439 | } | |
440 | ||
441 | @Override | |
442 | public void treeExpanded(TimeGraphTreeExpansionEvent event) { | |
e7708b02 PT |
443 | ITimeGraphEntry entry = event.getEntry(); |
444 | fTreeViewer.setExpandedState(entry, true); | |
445 | for (ITimeGraphEntry child : entry.getChildren()) { | |
446 | boolean expanded = fTreeViewer.getExpandedState(child); | |
447 | fTimeGraphViewer.setExpandedState(child, expanded); | |
448 | } | |
837a2f8c PT |
449 | } |
450 | }); | |
451 | ||
452 | // prevent mouse button from selecting a filler tree item | |
453 | tree.addListener(SWT.MouseDown, new Listener() { | |
454 | @Override | |
455 | public void handleEvent(Event event) { | |
456 | TreeItem treeItem = tree.getItem(new Point(event.x, event.y)); | |
457 | if (treeItem == null || treeItem.getData() == FILLER) { | |
458 | event.doit = false; | |
f1fae91f | 459 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
837a2f8c PT |
460 | if (treeItems.size() == 0) { |
461 | fTreeViewer.setSelection(new StructuredSelection()); | |
462 | fTimeGraphViewer.setSelection(null); | |
463 | return; | |
464 | } | |
465 | // this prevents from scrolling up when selecting | |
466 | // the partially visible tree item at the bottom | |
467 | tree.select(treeItems.get(treeItems.size() - 1)); | |
468 | fTreeViewer.setSelection(new StructuredSelection()); | |
469 | fTimeGraphViewer.setSelection(null); | |
470 | } | |
471 | } | |
472 | }); | |
473 | ||
474 | // prevent mouse wheel from scrolling down into filler tree items | |
475 | tree.addListener(SWT.MouseWheel, new Listener() { | |
476 | @Override | |
477 | public void handleEvent(Event event) { | |
478 | event.doit = false; | |
479 | Slider scrollBar = fTimeGraphViewer.getVerticalBar(); | |
480 | fTimeGraphViewer.setTopIndex(scrollBar.getSelection() - event.count); | |
f1fae91f | 481 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
482 | int topIndex = fTimeGraphViewer.getTopIndex(); |
483 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
484 | return; |
485 | } | |
d106a486 | 486 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
487 | tree.setTopItem(treeItem); |
488 | } | |
489 | }); | |
490 | ||
491 | // prevent key stroke from selecting a filler tree item | |
492 | tree.addListener(SWT.KeyDown, new Listener() { | |
493 | @Override | |
494 | public void handleEvent(Event event) { | |
f1fae91f | 495 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
837a2f8c PT |
496 | if (treeItems.size() == 0) { |
497 | fTreeViewer.setSelection(new StructuredSelection()); | |
498 | event.doit = false; | |
499 | return; | |
500 | } | |
501 | if (event.keyCode == SWT.ARROW_DOWN) { | |
502 | int index = Math.min(fTimeGraphViewer.getSelectionIndex() + 1, treeItems.size() - 1); | |
503 | fTimeGraphViewer.setSelection((ITimeGraphEntry) treeItems.get(index).getData()); | |
504 | event.doit = false; | |
505 | } else if (event.keyCode == SWT.PAGE_DOWN) { | |
506 | int height = tree.getSize().y - tree.getHeaderHeight() - tree.getHorizontalBar().getSize().y; | |
507 | int countPerPage = height / getItemHeight(tree); | |
508 | int index = Math.min(fTimeGraphViewer.getSelectionIndex() + countPerPage - 1, treeItems.size() - 1); | |
509 | fTimeGraphViewer.setSelection((ITimeGraphEntry) treeItems.get(index).getData()); | |
510 | event.doit = false; | |
511 | } else if (event.keyCode == SWT.END) { | |
512 | fTimeGraphViewer.setSelection((ITimeGraphEntry) treeItems.get(treeItems.size() - 1).getData()); | |
513 | event.doit = false; | |
514 | } | |
515 | TreeItem treeItem = treeItems.get(fTimeGraphViewer.getTopIndex()); | |
516 | tree.setTopItem(treeItem); | |
517 | if (fTimeGraphViewer.getSelectionIndex() >= 0) { | |
518 | fTreeViewer.setSelection(new StructuredSelection(fTimeGraphViewer.getSelection())); | |
519 | } else { | |
520 | fTreeViewer.setSelection(new StructuredSelection()); | |
521 | } | |
522 | } | |
523 | }); | |
524 | ||
525 | // ensure alignment of top item between tree and time graph | |
526 | fTimeGraphViewer.getTimeGraphControl().addControlListener(new ControlAdapter() { | |
527 | @Override | |
528 | public void controlResized(ControlEvent e) { | |
f1fae91f | 529 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
530 | int topIndex = fTimeGraphViewer.getTopIndex(); |
531 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
532 | return; |
533 | } | |
d106a486 | 534 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
535 | tree.setTopItem(treeItem); |
536 | } | |
537 | }); | |
538 | ||
539 | // ensure synchronization of selected item between tree and time graph | |
540 | fTreeViewer.addSelectionChangedListener(new ISelectionChangedListener() { | |
541 | @Override | |
542 | public void selectionChanged(SelectionChangedEvent event) { | |
543 | if (fInhibitTreeSelection) { | |
544 | return; | |
545 | } | |
546 | if (event.getSelection() instanceof IStructuredSelection) { | |
547 | Object selection = ((IStructuredSelection) event.getSelection()).getFirstElement(); | |
548 | if (selection instanceof ITimeGraphEntry) { | |
549 | fTimeGraphViewer.setSelection((ITimeGraphEntry) selection); | |
550 | } | |
f1fae91f | 551 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
552 | int topIndex = fTimeGraphViewer.getTopIndex(); |
553 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
554 | return; |
555 | } | |
d106a486 | 556 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
557 | tree.setTopItem(treeItem); |
558 | } | |
559 | } | |
560 | }); | |
561 | ||
562 | // ensure synchronization of selected item between tree and time graph | |
563 | fTimeGraphViewer.addSelectionListener(new ITimeGraphSelectionListener() { | |
564 | @Override | |
565 | public void selectionChanged(TimeGraphSelectionEvent event) { | |
566 | ITimeGraphEntry entry = fTimeGraphViewer.getSelection(); | |
567 | fInhibitTreeSelection = true; // block the tree selection changed listener | |
568 | if (entry != null) { | |
569 | StructuredSelection selection = new StructuredSelection(entry); | |
570 | fTreeViewer.setSelection(selection); | |
571 | } else { | |
572 | fTreeViewer.setSelection(new StructuredSelection()); | |
573 | } | |
574 | fInhibitTreeSelection = false; | |
f1fae91f | 575 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
576 | int topIndex = fTimeGraphViewer.getTopIndex(); |
577 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
578 | return; |
579 | } | |
d106a486 | 580 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
581 | tree.setTopItem(treeItem); |
582 | } | |
583 | }); | |
584 | ||
585 | // ensure alignment of top item between tree and time graph | |
586 | fTimeGraphViewer.getVerticalBar().addSelectionListener(new SelectionAdapter() { | |
587 | @Override | |
588 | public void widgetSelected(SelectionEvent e) { | |
f1fae91f | 589 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
590 | int topIndex = fTimeGraphViewer.getTopIndex(); |
591 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
592 | return; |
593 | } | |
d106a486 | 594 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
595 | tree.setTopItem(treeItem); |
596 | } | |
597 | }); | |
598 | ||
599 | // ensure alignment of top item between tree and time graph | |
600 | fTimeGraphViewer.getTimeGraphControl().addMouseWheelListener(new MouseWheelListener() { | |
601 | @Override | |
602 | public void mouseScrolled(MouseEvent e) { | |
f1fae91f | 603 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
d106a486 PT |
604 | int topIndex = fTimeGraphViewer.getTopIndex(); |
605 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
606 | return; |
607 | } | |
d106a486 | 608 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
609 | tree.setTopItem(treeItem); |
610 | } | |
611 | }); | |
612 | ||
613 | // ensure the tree has focus control when mouse is over it if the time graph had control | |
614 | fTreeViewer.getControl().addMouseTrackListener(new MouseTrackAdapter() { | |
615 | @Override | |
616 | public void mouseEnter(MouseEvent e) { | |
617 | if (fTimeGraphViewer.getTimeGraphControl().isFocusControl()) { | |
618 | fTreeViewer.getControl().setFocus(); | |
619 | } | |
620 | } | |
621 | }); | |
622 | ||
623 | // ensure the time graph has focus control when mouse is over it if the tree had control | |
624 | fTimeGraphViewer.getTimeGraphControl().addMouseTrackListener(new MouseTrackAdapter() { | |
625 | @Override | |
626 | public void mouseEnter(MouseEvent e) { | |
627 | if (fTreeViewer.getControl().isFocusControl()) { | |
628 | fTimeGraphViewer.getTimeGraphControl().setFocus(); | |
629 | } | |
630 | } | |
631 | }); | |
632 | fTimeGraphViewer.getTimeGraphScale().addMouseTrackListener(new MouseTrackAdapter() { | |
633 | @Override | |
634 | public void mouseEnter(MouseEvent e) { | |
635 | if (fTreeViewer.getControl().isFocusControl()) { | |
636 | fTimeGraphViewer.getTimeGraphControl().setFocus(); | |
637 | } | |
638 | } | |
639 | }); | |
640 | ||
c004295c PT |
641 | // ensure the time graph item heights are equal to the tree item heights |
642 | tree.addPaintListener(new PaintListener() { | |
643 | @Override | |
644 | public void paintControl(PaintEvent e) { | |
645 | List<TreeItem> items = getVisibleExpandedItems(tree); | |
646 | for (int i = 0; i < items.size() - 1; i++) { | |
647 | TreeItem item = items.get(i); | |
648 | /* | |
649 | * Bug in Linux. The method getBounds doesn't always return the correct height. | |
650 | * Use the difference of y position between items to calculate the height. | |
651 | */ | |
652 | Integer itemHeight = items.get(i + 1).getBounds().y - item.getBounds().y; | |
653 | if (!itemHeight.equals(item.getData(ITEM_HEIGHT))) { | |
654 | ITimeGraphEntry entry = (ITimeGraphEntry) item.getData(); | |
655 | if (fTimeGraphViewer.getTimeGraphControl().setItemHeight(entry, itemHeight)) { | |
656 | item.setData(ITEM_HEIGHT, itemHeight); | |
657 | } | |
658 | } | |
659 | } | |
660 | } | |
661 | }); | |
662 | ||
837a2f8c PT |
663 | // The filler rows are required to ensure alignment when the tree does not have a |
664 | // visible horizontal scroll bar. The tree does not allow its top item to be set | |
665 | // to a value that would cause blank space to be drawn at the bottom of the tree. | |
666 | fNumFillerRows = Display.getDefault().getBounds().height / getItemHeight(tree); | |
667 | ||
4999a196 | 668 | sash.setWeights(weights); |
837a2f8c PT |
669 | } |
670 | ||
671 | // ------------------------------------------------------------------------ | |
672 | // Accessors | |
673 | // ------------------------------------------------------------------------ | |
674 | ||
675 | /** | |
676 | * Returns this time graph combo's tree viewer. | |
677 | * | |
678 | * @return the tree viewer | |
679 | */ | |
680 | public TreeViewer getTreeViewer() { | |
681 | return fTreeViewer; | |
682 | } | |
683 | ||
684 | /** | |
685 | * Returns this time graph combo's time graph viewer. | |
686 | * | |
687 | * @return the time graph viewer | |
688 | */ | |
689 | public TimeGraphViewer getTimeGraphViewer() { | |
690 | return fTimeGraphViewer; | |
691 | } | |
692 | ||
6ac5a950 AM |
693 | /** |
694 | * Callback for the show filter action | |
695 | * | |
696 | * @since 2.0 | |
697 | */ | |
698 | public void showFilterDialog() { | |
699 | if(fTopInput != null) { | |
8f28f9d8 | 700 | List<? extends ITimeGraphEntry> allElements = listAllInputs(fTopInput); |
6ac5a950 AM |
701 | fFilterDialog.setInput(fTopInput.toArray(new ITimeGraphEntry[0])); |
702 | fFilterDialog.setTitle(Messages.TmfTimeFilterDialog_WINDOW_TITLE); | |
703 | fFilterDialog.setMessage(Messages.TmfTimeFilterDialog_MESSAGE); | |
8f28f9d8 | 704 | fFilterDialog.setExpandedElements(allElements.toArray()); |
f8840316 | 705 | if (fFilter.getFiltered() != null) { |
507b1336 | 706 | ArrayList<? extends ITimeGraphEntry> nonFilteredElements = new ArrayList<>(allElements); |
f8840316 FR |
707 | nonFilteredElements.removeAll(fFilter.getFiltered()); |
708 | fFilterDialog.setInitialElementSelections(nonFilteredElements); | |
8f28f9d8 PT |
709 | } else { |
710 | fFilterDialog.setInitialElementSelections(allElements); | |
711 | } | |
6ac5a950 AM |
712 | fFilterDialog.create(); |
713 | fFilterDialog.open(); | |
714 | // Process selected elements | |
715 | if (fFilterDialog.getResult() != null) { | |
716 | fInhibitTreeSelection = true; | |
8f28f9d8 | 717 | if (fFilterDialog.getResult().length != allElements.size()) { |
f8840316 FR |
718 | ArrayList<Object> filteredElements = new ArrayList<Object>(allElements); |
719 | filteredElements.removeAll(Arrays.asList(fFilterDialog.getResult())); | |
720 | fFilter.setFiltered(filteredElements); | |
8f28f9d8 | 721 | } else { |
f8840316 | 722 | fFilter.setFiltered(null); |
8f28f9d8 | 723 | } |
6ac5a950 AM |
724 | fTreeViewer.refresh(); |
725 | fTreeViewer.expandAll(); | |
726 | fTimeGraphViewer.refresh(); | |
727 | fInhibitTreeSelection = false; | |
728 | // Reset selection to first entry | |
729 | if (fFilterDialog.getResult().length > 0) { | |
730 | setSelection((ITimeGraphEntry) fFilterDialog.getResult()[0]); | |
731 | } | |
732 | } | |
733 | } | |
734 | } | |
735 | ||
736 | /** | |
737 | * Get the show filter action. | |
738 | * | |
739 | * @return The Action object | |
740 | * @since 2.0 | |
741 | */ | |
742 | public Action getShowFilterAction() { | |
743 | if (showFilterAction == null) { | |
744 | // showFilter | |
745 | showFilterAction = new Action() { | |
746 | @Override | |
747 | public void run() { | |
748 | showFilterDialog(); | |
749 | } | |
750 | }; | |
751 | showFilterAction.setText(Messages.TmfTimeGraphCombo_FilterActionNameText); | |
752 | showFilterAction.setToolTipText(Messages.TmfTimeGraphCombo_FilterActionToolTipText); | |
753 | // TODO find a nice, distinctive icon | |
754 | showFilterAction.setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_FILTERS)); | |
755 | } | |
756 | ||
757 | return showFilterAction; | |
758 | } | |
759 | ||
837a2f8c PT |
760 | // ------------------------------------------------------------------------ |
761 | // Control | |
762 | // ------------------------------------------------------------------------ | |
763 | ||
837a2f8c PT |
764 | @Override |
765 | public void redraw() { | |
766 | fTimeGraphViewer.getControl().redraw(); | |
767 | super.redraw(); | |
768 | } | |
769 | ||
770 | // ------------------------------------------------------------------------ | |
771 | // Operations | |
772 | // ------------------------------------------------------------------------ | |
773 | ||
774 | /** | |
775 | * Sets the tree content provider used by this time graph combo. | |
776 | * | |
777 | * @param contentProvider the tree content provider | |
778 | */ | |
779 | public void setTreeContentProvider(ITreeContentProvider contentProvider) { | |
780 | fTreeViewer.setContentProvider(new TreeContentProviderWrapper(contentProvider)); | |
781 | } | |
782 | ||
783 | /** | |
784 | * Sets the tree label provider used by this time graph combo. | |
785 | * | |
786 | * @param labelProvider the tree label provider | |
787 | */ | |
788 | public void setTreeLabelProvider(ITableLabelProvider labelProvider) { | |
789 | fTreeViewer.setLabelProvider(new TreeLabelProviderWrapper(labelProvider)); | |
790 | } | |
791 | ||
6ac5a950 AM |
792 | /** |
793 | * Sets the tree content provider used by the filter dialog | |
794 | * | |
795 | * @param contentProvider the tree content provider | |
796 | * @since 2.0 | |
797 | */ | |
798 | public void setFilterContentProvider(ITreeContentProvider contentProvider) { | |
799 | fFilterDialog.setContentProvider(contentProvider); | |
800 | } | |
801 | ||
802 | /** | |
803 | * Sets the tree label provider used by the filter dialog | |
804 | * | |
805 | * @param labelProvider the tree label provider | |
806 | * @since 2.0 | |
807 | */ | |
808 | public void setFilterLabelProvider(ITableLabelProvider labelProvider) { | |
809 | fFilterDialog.setLabelProvider(labelProvider); | |
810 | } | |
811 | ||
837a2f8c PT |
812 | /** |
813 | * Sets the tree columns for this time graph combo. | |
814 | * | |
815 | * @param columnNames the tree column names | |
816 | */ | |
817 | public void setTreeColumns(String[] columnNames) { | |
818 | final Tree tree = fTreeViewer.getTree(); | |
819 | for (String columnName : columnNames) { | |
820 | TreeColumn column = new TreeColumn(tree, SWT.LEFT); | |
821 | column.setText(columnName); | |
822 | column.pack(); | |
823 | } | |
824 | } | |
825 | ||
6ac5a950 AM |
826 | /** |
827 | * Sets the tree columns for this time graph combo's filter dialog. | |
828 | * | |
829 | * @param columnNames the tree column names | |
830 | * @since 2.0 | |
831 | */ | |
832 | public void setFilterColumns(String[] columnNames) { | |
833 | fFilterDialog.setColumnNames(columnNames); | |
834 | } | |
835 | ||
837a2f8c PT |
836 | /** |
837 | * Sets the time graph provider used by this time graph combo. | |
838 | * | |
839 | * @param timeGraphProvider the time graph provider | |
840 | */ | |
841 | public void setTimeGraphProvider(ITimeGraphPresentationProvider timeGraphProvider) { | |
842 | fTimeGraphViewer.setTimeGraphProvider(timeGraphProvider); | |
843 | } | |
844 | ||
845 | /** | |
846 | * Sets or clears the input for this time graph combo. | |
847 | * The input array should only contain top-level elements. | |
848 | * | |
849 | * @param input the input of this time graph combo, or <code>null</code> if none | |
850 | */ | |
851 | public void setInput(ITimeGraphEntry[] input) { | |
507b1336 | 852 | fTopInput = new ArrayList<>(Arrays.asList(input)); |
f8840316 | 853 | fFilter.setFiltered(null); |
837a2f8c PT |
854 | fInhibitTreeSelection = true; |
855 | fTreeViewer.setInput(input); | |
856 | for (SelectionListenerWrapper listenerWrapper : fSelectionListenerMap.values()) { | |
857 | listenerWrapper.selection = null; | |
858 | } | |
859 | fInhibitTreeSelection = false; | |
860 | fTreeViewer.expandAll(); | |
861 | fTreeViewer.getTree().getVerticalBar().setEnabled(false); | |
862 | fTreeViewer.getTree().getVerticalBar().setVisible(false); | |
863 | fTimeGraphViewer.setItemHeight(getItemHeight(fTreeViewer.getTree())); | |
864 | fTimeGraphViewer.setInput(input); | |
865 | } | |
866 | ||
bec1f1ac GB |
867 | /** |
868 | * Sets or clears the list of links to display on this combo | |
869 | * | |
870 | * @param links the links to display in this time graph combo | |
871 | * @since 2.1 | |
872 | */ | |
873 | public void setLinks(List<ILinkEvent> links) { | |
874 | fTimeGraphViewer.setLinks(links); | |
875 | } | |
876 | ||
6ac5a950 AM |
877 | /** |
878 | * @param filter The filter object to be attached to the view | |
879 | * @since 2.0 | |
880 | */ | |
881 | public void addFilter(ViewerFilter filter) { | |
882 | ViewerFilter wrapper = new ViewerFilterWrapper(filter); | |
883 | fTreeViewer.addFilter(wrapper); | |
884 | fTimeGraphViewer.addFilter(wrapper); | |
885 | fViewerFilterMap.put(filter, wrapper); | |
886 | } | |
887 | ||
888 | /** | |
889 | * @param filter The filter object to be removed from the view | |
890 | * @since 2.0 | |
891 | */ | |
892 | public void removeFilter(ViewerFilter filter) { | |
893 | ViewerFilter wrapper = fViewerFilterMap.get(filter); | |
894 | fTreeViewer.removeFilter(wrapper); | |
895 | fTimeGraphViewer.removeFilter(wrapper); | |
896 | fViewerFilterMap.remove(filter); | |
897 | } | |
898 | ||
837a2f8c PT |
899 | /** |
900 | * Refreshes this time graph completely with information freshly obtained from its model. | |
901 | */ | |
902 | public void refresh() { | |
903 | fInhibitTreeSelection = true; | |
904 | fTreeViewer.refresh(); | |
905 | fTimeGraphViewer.refresh(); | |
906 | fInhibitTreeSelection = false; | |
907 | } | |
908 | ||
909 | /** | |
910 | * Adds a listener for selection changes in this time graph combo. | |
911 | * | |
912 | * @param listener a selection listener | |
913 | */ | |
914 | public void addSelectionListener(ITimeGraphSelectionListener listener) { | |
915 | SelectionListenerWrapper listenerWrapper = new SelectionListenerWrapper(listener); | |
916 | fTreeViewer.addSelectionChangedListener(listenerWrapper); | |
917 | fSelectionListenerMap.put(listener, listenerWrapper); | |
918 | fTimeGraphViewer.addSelectionListener(listenerWrapper); | |
919 | } | |
920 | ||
921 | /** | |
922 | * Removes the given selection listener from this time graph combo. | |
923 | * | |
924 | * @param listener a selection changed listener | |
925 | */ | |
926 | public void removeSelectionListener(ITimeGraphSelectionListener listener) { | |
927 | SelectionListenerWrapper listenerWrapper = fSelectionListenerMap.remove(listener); | |
928 | fTreeViewer.removeSelectionChangedListener(listenerWrapper); | |
929 | fTimeGraphViewer.removeSelectionListener(listenerWrapper); | |
930 | } | |
931 | ||
932 | /** | |
933 | * Sets the current selection for this time graph combo. | |
934 | * | |
935 | * @param selection the new selection | |
936 | */ | |
937 | public void setSelection(ITimeGraphEntry selection) { | |
938 | fTimeGraphViewer.setSelection(selection); | |
939 | fInhibitTreeSelection = true; // block the tree selection changed listener | |
940 | if (selection != null) { | |
941 | StructuredSelection structuredSelection = new StructuredSelection(selection); | |
942 | fTreeViewer.setSelection(structuredSelection); | |
943 | } else { | |
944 | fTreeViewer.setSelection(new StructuredSelection()); | |
945 | } | |
946 | fInhibitTreeSelection = false; | |
f1fae91f | 947 | List<TreeItem> treeItems = getVisibleExpandedItems(fTreeViewer.getTree()); |
d106a486 PT |
948 | int topIndex = fTimeGraphViewer.getTopIndex(); |
949 | if (topIndex >= treeItems.size()) { | |
837a2f8c PT |
950 | return; |
951 | } | |
d106a486 | 952 | TreeItem treeItem = treeItems.get(topIndex); |
837a2f8c PT |
953 | fTreeViewer.getTree().setTopItem(treeItem); |
954 | } | |
955 | ||
956 | /** | |
957 | * Set the expanded state of an entry | |
958 | * | |
959 | * @param entry | |
960 | * The entry to expand/collapse | |
961 | * @param expanded | |
962 | * True for expanded, false for collapsed | |
963 | * | |
964 | * @since 2.0 | |
965 | */ | |
966 | public void setExpandedState(ITimeGraphEntry entry, boolean expanded) { | |
967 | fTimeGraphViewer.setExpandedState(entry, expanded); | |
968 | fTreeViewer.setExpandedState(entry, expanded); | |
969 | } | |
970 | ||
971 | /** | |
972 | * Collapses all nodes of the viewer's tree, starting with the root. | |
973 | * | |
974 | * @since 2.0 | |
975 | */ | |
976 | public void collapseAll() { | |
977 | fTimeGraphViewer.collapseAll(); | |
978 | fTreeViewer.collapseAll(); | |
979 | } | |
980 | ||
981 | /** | |
982 | * Expands all nodes of the viewer's tree, starting with the root. | |
983 | * | |
984 | * @since 2.0 | |
985 | */ | |
986 | public void expandAll() { | |
987 | fTimeGraphViewer.expandAll(); | |
988 | fTreeViewer.expandAll(); | |
989 | } | |
990 | ||
991 | // ------------------------------------------------------------------------ | |
992 | // Internal | |
993 | // ------------------------------------------------------------------------ | |
994 | ||
f1fae91f | 995 | private List<TreeItem> getVisibleExpandedItems(Tree tree) { |
507b1336 | 996 | ArrayList<TreeItem> items = new ArrayList<>(); |
837a2f8c PT |
997 | for (TreeItem item : tree.getItems()) { |
998 | if (item.getData() == FILLER) { | |
999 | break; | |
1000 | } | |
1001 | items.add(item); | |
1002 | if (item.getExpanded()) { | |
1003 | items.addAll(getVisibleExpandedItems(item)); | |
1004 | } | |
1005 | } | |
1006 | return items; | |
1007 | } | |
1008 | ||
f1fae91f | 1009 | private List<TreeItem> getVisibleExpandedItems(TreeItem treeItem) { |
507b1336 | 1010 | ArrayList<TreeItem> items = new ArrayList<>(); |
837a2f8c PT |
1011 | for (TreeItem item : treeItem.getItems()) { |
1012 | items.add(item); | |
1013 | if (item.getExpanded()) { | |
1014 | items.addAll(getVisibleExpandedItems(item)); | |
1015 | } | |
1016 | } | |
1017 | return items; | |
1018 | } | |
1019 | ||
6ac5a950 AM |
1020 | /** |
1021 | * Explores the list of top-level inputs and returns all the inputs | |
1022 | * | |
1023 | * @param inputs The top-level inputs | |
1024 | * @return All the inputs | |
1025 | */ | |
1026 | private List<? extends ITimeGraphEntry> listAllInputs(List<? extends ITimeGraphEntry> inputs) { | |
507b1336 | 1027 | ArrayList<ITimeGraphEntry> items = new ArrayList<>(); |
6ac5a950 AM |
1028 | for (ITimeGraphEntry entry : inputs) { |
1029 | items.add(entry); | |
1030 | if (entry.hasChildren()) { | |
1031 | items.addAll(listAllInputs(entry.getChildren())); | |
1032 | } | |
1033 | } | |
1034 | return items; | |
1035 | } | |
1036 | ||
837a2f8c PT |
1037 | private int getItemHeight(final Tree tree) { |
1038 | /* | |
1039 | * Bug in Linux. The method getItemHeight doesn't always return the correct value. | |
1040 | */ | |
1041 | if (fLinuxItemHeight >= 0 && System.getProperty("os.name").contains("Linux")) { //$NON-NLS-1$ //$NON-NLS-2$ | |
1042 | if (fLinuxItemHeight != 0) { | |
1043 | return fLinuxItemHeight; | |
1044 | } | |
f1fae91f | 1045 | List<TreeItem> treeItems = getVisibleExpandedItems(tree); |
837a2f8c PT |
1046 | if (treeItems.size() > 1) { |
1047 | final TreeItem treeItem0 = treeItems.get(0); | |
1048 | final TreeItem treeItem1 = treeItems.get(1); | |
1049 | PaintListener paintListener = new PaintListener() { | |
1050 | @Override | |
1051 | public void paintControl(PaintEvent e) { | |
1052 | tree.removePaintListener(this); | |
1053 | int y0 = treeItem0.getBounds().y; | |
1054 | int y1 = treeItem1.getBounds().y; | |
1055 | int itemHeight = y1 - y0; | |
1056 | if (itemHeight > 0) { | |
1057 | fLinuxItemHeight = itemHeight; | |
1058 | fTimeGraphViewer.setItemHeight(itemHeight); | |
1059 | } | |
1060 | } | |
1061 | }; | |
1062 | tree.addPaintListener(paintListener); | |
1063 | } | |
1064 | } else { | |
1065 | fLinuxItemHeight = -1; // Not Linux, don't perform os.name check anymore | |
1066 | } | |
1067 | return tree.getItemHeight(); | |
1068 | } | |
1069 | ||
1070 | } |