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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 | * Alexis Cabana-Loriaux - Initial API and implementation | |
11 | * | |
12 | *******************************************************************************/ | |
13 | ||
14 | package org.eclipse.tracecompass.tmf.ui.viewers.piecharts; | |
15 | ||
16 | import org.eclipse.swt.SWT; | |
17 | import org.eclipse.swt.widgets.Display; | |
18 | ||
19 | /** | |
20 | * Implementation of the IPieChartViewerState interface to represent the state | |
21 | * of the layout when there is no content currently selected. | |
22 | * | |
23 | * @author Alexis Cabana-Loriaux | |
24 | * @since 2.0 | |
25 | * | |
26 | */ | |
27 | public class PieChartViewerStateNoContentSelected implements IPieChartViewerState { | |
28 | ||
29 | /** | |
30 | * Default constructor | |
31 | * | |
32 | * @param context | |
33 | * The current context | |
34 | */ | |
35 | public PieChartViewerStateNoContentSelected(final TmfPieChartViewer context) { | |
36 | if (context.isDisposed()) { | |
37 | return; | |
38 | } | |
39 | ||
40 | Display.getDefault().asyncExec(new Runnable() { | |
41 | @Override | |
42 | public void run() { | |
43 | synchronized (context) { | |
44 | if (!context.isDisposed()) { | |
45 | // Have to get rid of the time-range PieChart | |
46 | if (context.getTimeRangePC() != null) { | |
47 | if (!context.getTimeRangePC().isDisposed()) { | |
48 | context.getTimeRangePC().dispose(); | |
49 | } | |
50 | context.setTimeRangePC(null); | |
51 | } | |
52 | ||
53 | context.updateGlobalPieChart(); | |
54 | // update the global chart so it takes all the place | |
55 | context.getGlobalPC().getLegend().setPosition(SWT.RIGHT); | |
56 | context.layout(); | |
57 | } | |
58 | } | |
59 | } | |
60 | }); | |
61 | } | |
62 | ||
63 | @Override | |
64 | public void newSelection(final TmfPieChartViewer context) { | |
65 | context.setCurrentState(new PieChartViewerStateContentSelected(context)); | |
66 | } | |
67 | ||
68 | @Override | |
69 | public void newEmptySelection(final TmfPieChartViewer context) { | |
70 | // do nothing | |
71 | } | |
72 | ||
73 | @Override | |
74 | public void newGlobalEntries(final TmfPieChartViewer context) { | |
75 | Display.getDefault().asyncExec(new Runnable() { | |
76 | @Override | |
77 | public void run() { | |
78 | synchronized (context) { | |
79 | if (!context.isDisposed()) { | |
80 | context.updateGlobalPieChart(); | |
81 | context.getGlobalPC().redraw(); | |
82 | } | |
83 | } | |
84 | } | |
85 | }); | |
86 | } | |
87 | } |