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be222f56 | 1 | /***************************************************************************** |
60ae41e1 | 2 | * Copyright (c) 2007, 2013 Intel Corporation, Ericsson |
be222f56 PT |
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 | |
be222f56 PT |
13 | *****************************************************************************/ |
14 | ||
15 | package org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets; | |
16 | ||
17 | import java.util.ArrayList; | |
18 | import java.util.Iterator; | |
19 | import java.util.List; | |
20 | ||
21 | import org.eclipse.jface.viewers.IStructuredSelection; | |
22 | ||
23 | /** | |
24 | * Selection object for the time graph scale | |
25 | * | |
26 | * @version 1.0 | |
27 | * @author Alvaro Sanchez-Leon | |
28 | * @author Patrick Tasse | |
29 | */ | |
30 | public class TimeGraphSelection implements IStructuredSelection { | |
31 | ||
507b1336 | 32 | private List<Object> list = new ArrayList<>(); |
be222f56 PT |
33 | |
34 | /** | |
35 | * Default constructor | |
36 | */ | |
37 | public TimeGraphSelection() { | |
38 | } | |
39 | ||
40 | /** | |
41 | * "Wrapper" constructor. Instantiate a new selection object with only one | |
42 | * existing selection. | |
43 | * | |
44 | * @param sel | |
45 | * The initial selection to add to this one | |
46 | */ | |
47 | public TimeGraphSelection(Object sel) { | |
f1fae91f PT |
48 | if (sel != null) { |
49 | list.add(sel); | |
50 | } | |
be222f56 PT |
51 | } |
52 | ||
53 | /** | |
54 | * Add a selection to this one. | |
55 | * | |
56 | * @param sel | |
57 | * The selection to add | |
58 | */ | |
59 | public void add(Object sel) { | |
60 | if (null != sel && !list.contains(sel)) { | |
61 | list.add(sel); | |
62 | } | |
63 | } | |
64 | ||
65 | @Override | |
66 | public Object getFirstElement() { | |
67 | if (!list.isEmpty()) { | |
68 | return list.get(0); | |
69 | } | |
70 | return null; | |
71 | } | |
72 | ||
73 | @Override | |
74 | public Iterator<Object> iterator() { | |
75 | return list.iterator(); | |
76 | } | |
77 | ||
78 | @Override | |
79 | public int size() { | |
80 | return list.size(); | |
81 | } | |
82 | ||
83 | @Override | |
84 | public Object[] toArray() { | |
85 | return list.toArray(); | |
86 | } | |
87 | ||
88 | @Override | |
89 | public List<Object> toList() { | |
90 | return list; | |
91 | } | |
92 | ||
93 | @Override | |
94 | public boolean isEmpty() { | |
95 | return list.isEmpty(); | |
96 | } | |
97 | } |