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be222f56 PT |
1 | /***************************************************************************** |
2 | * Copyright (c) 2007 Intel Corporation, 2009, 2012 Ericsson. | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * Intel Corporation - Initial API and implementation | |
10 | * Ruslan A. Scherbakov, Intel - Initial API and implementation | |
11 | * Alvaro Sanchez-Leon - Updated for TMF | |
12 | * Patrick Tasse - Refactoring | |
13 | * | |
14 | *****************************************************************************/ | |
15 | ||
16 | package org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets; | |
17 | ||
18 | import java.util.ArrayList; | |
19 | import java.util.Iterator; | |
20 | import java.util.List; | |
21 | ||
22 | import org.eclipse.jface.viewers.IStructuredSelection; | |
23 | ||
24 | /** | |
25 | * Selection object for the time graph scale | |
26 | * | |
27 | * @version 1.0 | |
28 | * @author Alvaro Sanchez-Leon | |
29 | * @author Patrick Tasse | |
30 | */ | |
31 | public class TimeGraphSelection implements IStructuredSelection { | |
32 | ||
33 | List<Object> list = new ArrayList<Object>(); | |
34 | ||
35 | /** | |
36 | * Default constructor | |
37 | */ | |
38 | public TimeGraphSelection() { | |
39 | } | |
40 | ||
41 | /** | |
42 | * "Wrapper" constructor. Instantiate a new selection object with only one | |
43 | * existing selection. | |
44 | * | |
45 | * @param sel | |
46 | * The initial selection to add to this one | |
47 | */ | |
48 | public TimeGraphSelection(Object sel) { | |
49 | add(sel); | |
50 | } | |
51 | ||
52 | /** | |
53 | * Add a selection to this one. | |
54 | * | |
55 | * @param sel | |
56 | * The selection to add | |
57 | */ | |
58 | public void add(Object sel) { | |
59 | if (null != sel && !list.contains(sel)) { | |
60 | list.add(sel); | |
61 | } | |
62 | } | |
63 | ||
64 | @Override | |
65 | public Object getFirstElement() { | |
66 | if (!list.isEmpty()) { | |
67 | return list.get(0); | |
68 | } | |
69 | return null; | |
70 | } | |
71 | ||
72 | @Override | |
73 | public Iterator<Object> iterator() { | |
74 | return list.iterator(); | |
75 | } | |
76 | ||
77 | @Override | |
78 | public int size() { | |
79 | return list.size(); | |
80 | } | |
81 | ||
82 | @Override | |
83 | public Object[] toArray() { | |
84 | return list.toArray(); | |
85 | } | |
86 | ||
87 | @Override | |
88 | public List<Object> toList() { | |
89 | return list; | |
90 | } | |
91 | ||
92 | @Override | |
93 | public boolean isEmpty() { | |
94 | return list.isEmpty(); | |
95 | } | |
96 | } |