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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * France Lapointe Nguyen - Initial API and implementation | |
b9fff7ad | 11 | * Bernd Hufmann - MOve abstract class to TMF |
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12 | *******************************************************************************/ |
13 | ||
b9fff7ad | 14 | package org.eclipse.tracecompass.internal.analysis.timing.ui.views.segmentstore; |
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15 | |
16 | import java.util.Arrays; | |
17 | import java.util.Comparator; | |
18 | ||
19 | import org.eclipse.jdt.annotation.Nullable; | |
20 | import org.eclipse.jface.viewers.TableViewer; | |
21 | import org.eclipse.jface.viewers.Viewer; | |
22 | import org.eclipse.tracecompass.segmentstore.core.ISegment; | |
23 | import org.eclipse.tracecompass.segmentstore.core.ISegmentStore; | |
24 | import org.eclipse.tracecompass.tmf.ui.viewers.table.ISortingLazyContentProvider; | |
25 | ||
26 | import com.google.common.collect.Iterables; | |
27 | ||
28 | /** | |
29 | * Content provider for the latency table viewers. | |
30 | * | |
31 | * @author France Lapointe Nguyen | |
b9fff7ad | 32 | * @since 2.0 |
7b79ee46 | 33 | */ |
b9fff7ad | 34 | public class SegmentStoreContentProvider implements ISortingLazyContentProvider { |
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35 | |
36 | /** | |
37 | * Array of all the segments in the segment store of the current trace | |
38 | */ | |
4c4e2816 | 39 | private ISegment @Nullable [] fSegmentArray = null; |
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40 | |
41 | /** | |
42 | * Table viewer of the latency table viewer | |
43 | */ | |
44 | private @Nullable TableViewer fTableViewer = null; | |
45 | ||
46 | /** | |
47 | * Segment comparator | |
48 | */ | |
49 | private @Nullable Comparator<ISegment> fComparator = null; | |
50 | ||
51 | @Override | |
52 | public void updateElement(int index) { | |
53 | final TableViewer tableViewer = fTableViewer; | |
54 | final ISegment[] segmentArray = fSegmentArray; | |
55 | if (tableViewer != null && segmentArray != null) { | |
56 | tableViewer.replace(segmentArray[index], index); | |
57 | } | |
58 | } | |
59 | ||
60 | @Override | |
61 | public void dispose() { | |
62 | fSegmentArray = null; | |
63 | fTableViewer = null; | |
64 | fComparator = null; | |
65 | } | |
66 | ||
67 | @Override | |
68 | public void inputChanged(@Nullable Viewer viewer, @Nullable Object oldInput, @Nullable Object newInput) { | |
69 | fTableViewer = (TableViewer) viewer; | |
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70 | if (newInput instanceof ISegmentStore) { |
71 | ISegmentStore<ISegment> segmentStore = (ISegmentStore<ISegment>) newInput; | |
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72 | fSegmentArray = Iterables.toArray(segmentStore, ISegment.class); |
73 | if (fComparator != null) { | |
74 | Arrays.sort(fSegmentArray, fComparator); | |
75 | } | |
76 | } else { | |
77 | fSegmentArray = null; | |
78 | } | |
79 | } | |
80 | ||
81 | @Override | |
82 | public void setSortOrder(@Nullable Comparator<?> comparator) { | |
83 | if (comparator == null) { | |
84 | return; | |
85 | } | |
86 | if (fSegmentArray == null) { | |
87 | return; | |
88 | } | |
89 | final TableViewer tableViewer = fTableViewer; | |
90 | if (tableViewer == null) { | |
91 | return; | |
92 | } | |
93 | fComparator = (Comparator<ISegment>) comparator; | |
94 | Arrays.sort(fSegmentArray, fComparator); | |
95 | tableViewer.refresh(); | |
96 | } | |
97 | ||
98 | /** | |
99 | * Get the segment count | |
100 | * | |
101 | * @return the segment count | |
102 | */ | |
103 | public int getSegmentCount() { | |
104 | ISegment[] segmentArray = fSegmentArray; | |
105 | return (segmentArray == null ? 0 : segmentArray.length); | |
106 | } | |
107 | } |