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dffc234f | 1 | /******************************************************************************* |
ed902a2b | 2 | * Copyright (c) 2014, 2015 École Polytechnique de Montréal |
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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 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
e363eae1 | 13 | package org.eclipse.tracecompass.analysis.os.linux.ui.views.cpuusage; |
dffc234f | 14 | |
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15 | import org.eclipse.jface.viewers.ISelection; |
16 | import org.eclipse.jface.viewers.ISelectionChangedListener; | |
17 | import org.eclipse.jface.viewers.IStructuredSelection; | |
18 | import org.eclipse.jface.viewers.SelectionChangedEvent; | |
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19 | import org.eclipse.swt.SWT; |
20 | import org.eclipse.swt.custom.SashForm; | |
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21 | import org.eclipse.swt.events.ControlAdapter; |
22 | import org.eclipse.swt.events.ControlEvent; | |
23 | import org.eclipse.swt.events.PaintEvent; | |
24 | import org.eclipse.swt.events.PaintListener; | |
25 | import org.eclipse.swt.layout.GridData; | |
26 | import org.eclipse.swt.layout.GridLayout; | |
dffc234f | 27 | import org.eclipse.swt.widgets.Composite; |
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28 | import org.eclipse.swt.widgets.Control; |
29 | import org.eclipse.swt.widgets.Event; | |
30 | import org.eclipse.swt.widgets.Listener; | |
31 | import org.eclipse.swt.widgets.Sash; | |
32 | import org.eclipse.tracecompass.tmf.core.signal.TmfSignalManager; | |
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33 | import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal; |
34 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; | |
21852dfa | 35 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager; |
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36 | import org.eclipse.tracecompass.tmf.ui.signal.TmfTimeViewAlignmentInfo; |
37 | import org.eclipse.tracecompass.tmf.ui.signal.TmfTimeViewAlignmentSignal; | |
38 | import org.eclipse.tracecompass.tmf.ui.views.ITmfTimeAligned; | |
2bdf0193 | 39 | import org.eclipse.tracecompass.tmf.ui.views.TmfView; |
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40 | |
41 | /** | |
42 | * CPU usage view. It contains 2 viewers: one tree viewer showing all the | |
43 | * threads who were on the CPU in the time range, and one XY chart viewer | |
44 | * plotting the total time spent on CPU and the time of the threads selected in | |
45 | * the tree viewer. | |
46 | * | |
47 | * @author Geneviève Bastien | |
48 | */ | |
54404589 | 49 | public class CpuUsageView extends TmfView implements ITmfTimeAligned { |
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50 | |
51 | /** ID string */ | |
e363eae1 | 52 | public static final String ID = "org.eclipse.tracecompass.analysis.os.linux.views.cpuusage"; //$NON-NLS-1$ |
dffc234f | 53 | |
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54 | private static final int[] DEFAULT_WEIGHTS = {1, 3}; |
55 | ||
3df2eabe | 56 | private CpuUsageComposite fTreeViewer = null; |
e9a0d1cb | 57 | private CpuUsageXYViewer fXYViewer = null; |
3df2eabe | 58 | |
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59 | private SashForm fSashForm; |
60 | private Listener fSashDragListener; | |
61 | /** A composite that allows us to add margins */ | |
62 | private Composite fXYViewerContainer; | |
63 | ||
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64 | /** |
65 | * Constructor | |
66 | */ | |
67 | public CpuUsageView() { | |
68 | super(Messages.CpuUsageView_Title); | |
69 | } | |
70 | ||
71 | @Override | |
72 | public void createPartControl(Composite parent) { | |
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73 | super.createPartControl(parent); |
74 | ||
75 | fSashForm = new SashForm(parent, SWT.NONE); | |
dffc234f | 76 | |
54404589 | 77 | fTreeViewer = new CpuUsageComposite(fSashForm); |
dffc234f | 78 | |
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79 | fXYViewerContainer = new Composite(fSashForm, SWT.NONE); |
80 | GridLayout layout = new GridLayout(); | |
81 | layout.marginHeight = 0; | |
82 | layout.marginWidth = 0; | |
83 | fXYViewerContainer.setLayout(layout); | |
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84 | |
85 | /* Build the XY chart part of the view */ | |
54404589 | 86 | fXYViewer = new CpuUsageXYViewer(fXYViewerContainer); |
637a4019 | 87 | fXYViewer.setSendTimeAlignSignals(true); |
54404589 | 88 | fXYViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); |
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89 | |
90 | /* Add selection listener to tree viewer */ | |
91 | fTreeViewer.addSelectionChangeListener(new ISelectionChangedListener() { | |
92 | @Override | |
93 | public void selectionChanged(SelectionChangedEvent event) { | |
94 | ISelection selection = event.getSelection(); | |
95 | if (selection instanceof IStructuredSelection) { | |
96 | Object structSelection = ((IStructuredSelection) selection).getFirstElement(); | |
97 | if (structSelection instanceof CpuUsageEntry) { | |
98 | CpuUsageEntry entry = (CpuUsageEntry) structSelection; | |
99 | fTreeViewer.setSelectedThread(entry.getTid()); | |
100 | fXYViewer.setSelectedThread(Long.valueOf(entry.getTid())); | |
101 | } | |
102 | } | |
103 | } | |
104 | }); | |
dffc234f | 105 | |
dffc234f | 106 | /* Initialize the viewers with the currently selected trace */ |
21852dfa | 107 | ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace(); |
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108 | if (trace != null) { |
109 | TmfTraceSelectedSignal signal = new TmfTraceSelectedSignal(this, trace); | |
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110 | fTreeViewer.traceSelected(signal); |
111 | fXYViewer.traceSelected(signal); | |
dffc234f | 112 | } |
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113 | fTreeViewer.getControl().addControlListener(new ControlAdapter() { |
114 | @Override | |
115 | public void controlResized(ControlEvent e) { | |
116 | super.controlResized(e); | |
117 | } | |
118 | }); | |
dffc234f | 119 | |
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120 | fXYViewer.getControl().addPaintListener(new PaintListener() { |
121 | @Override | |
122 | public void paintControl(PaintEvent e) { | |
123 | // Sashes in a SashForm are being created on layout so add the | |
124 | // drag listener here | |
125 | if (fSashDragListener == null) { | |
126 | for (Control control : fSashForm.getChildren()) { | |
127 | if (control instanceof Sash) { | |
128 | fSashDragListener = new Listener() { | |
129 | ||
130 | @Override | |
131 | public void handleEvent(Event event) { | |
132 | TmfSignalManager.dispatchSignal(new TmfTimeViewAlignmentSignal(fSashForm, getTimeViewAlignmentInfo())); | |
133 | } | |
134 | }; | |
135 | control.removePaintListener(this); | |
136 | control.addListener(SWT.Selection, fSashDragListener); | |
137 | // There should be only one sash | |
138 | break; | |
139 | } | |
140 | } | |
141 | } | |
142 | } | |
143 | }); | |
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144 | |
145 | fSashForm.setWeights(DEFAULT_WEIGHTS); | |
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146 | } |
147 | ||
148 | @Override | |
149 | public void setFocus() { | |
abf7b9b0 | 150 | fXYViewer.getControl().setFocus(); |
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151 | } |
152 | ||
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153 | @Override |
154 | public void dispose() { | |
155 | super.dispose(); | |
156 | if (fTreeViewer != null) { | |
157 | fTreeViewer.dispose(); | |
158 | } | |
159 | if (fXYViewer != null) { | |
160 | fXYViewer.dispose(); | |
161 | } | |
162 | } | |
163 | ||
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164 | /** |
165 | * @since 1.0 | |
166 | */ | |
167 | @Override | |
168 | public TmfTimeViewAlignmentInfo getTimeViewAlignmentInfo() { | |
169 | if (fSashForm == null) { | |
170 | return null; | |
171 | } | |
172 | ||
173 | return new TmfTimeViewAlignmentInfo(fSashForm.getShell(), fSashForm.toDisplay(0, 0), getTimeAxisOffset()); | |
174 | } | |
175 | ||
176 | private int getTimeAxisOffset() { | |
2e23a015 | 177 | return fTreeViewer.getControl().getSize().x + fSashForm.getSashWidth() + fXYViewer.getPointAreaOffset(); |
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178 | } |
179 | ||
180 | /** | |
181 | * @since 1.0 | |
182 | */ | |
183 | @Override | |
184 | public int getAvailableWidth(int requestedOffset) { | |
185 | int pointAreaWidth = fXYViewer.getPointAreaWidth(); | |
186 | int curTimeAxisOffset = getTimeAxisOffset(); | |
187 | if (pointAreaWidth <= 0) { | |
188 | pointAreaWidth = fSashForm.getBounds().width - curTimeAxisOffset; | |
189 | } | |
190 | // TODO this is just an approximation that assumes that the end will be at the same position but that can change for a different data range/scaling | |
191 | int endOffset = curTimeAxisOffset + pointAreaWidth; | |
192 | GridLayout layout = (GridLayout) fXYViewerContainer.getLayout(); | |
193 | int endOffsetWithoutMargin = endOffset + layout.marginRight; | |
194 | int availableWidth = endOffsetWithoutMargin - requestedOffset; | |
195 | availableWidth = Math.min(fSashForm.getBounds().width, Math.max(0, availableWidth)); | |
196 | return availableWidth; | |
197 | } | |
198 | ||
199 | /** | |
200 | * @since 1.0 | |
201 | */ | |
202 | @Override | |
203 | public void performAlign(int offset, int width) { | |
54404589 | 204 | int total = fSashForm.getBounds().width; |
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205 | int plotAreaOffset = fXYViewer.getPointAreaOffset(); |
206 | int width1 = Math.max(0, offset - plotAreaOffset - fSashForm.getSashWidth()); | |
207 | int width2 = Math.max(0, total - width1 - fSashForm.getSashWidth()); | |
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208 | fSashForm.setWeights(new int[] { width1, width2 }); |
209 | fSashForm.layout(); | |
210 | ||
211 | Composite composite = fXYViewerContainer; | |
212 | GridLayout layout = (GridLayout) composite.getLayout(); | |
213 | int timeAxisWidth = getAvailableWidth(offset); | |
214 | int marginSize = timeAxisWidth - width; | |
215 | layout.marginRight = Math.max(0, marginSize); | |
216 | composite.layout(); | |
217 | } | |
dffc234f | 218 | } |