| 1 | /***************************************************************************** |
| 2 | * Copyright (c) 2007, 2012 Intel Corporation, 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 | 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 | |
| 32 | List<Object> list = new ArrayList<Object>(); |
| 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) { |
| 48 | add(sel); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Add a selection to this one. |
| 53 | * |
| 54 | * @param sel |
| 55 | * The selection to add |
| 56 | */ |
| 57 | public void add(Object sel) { |
| 58 | if (null != sel && !list.contains(sel)) { |
| 59 | list.add(sel); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public Object getFirstElement() { |
| 65 | if (!list.isEmpty()) { |
| 66 | return list.get(0); |
| 67 | } |
| 68 | return null; |
| 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public Iterator<Object> iterator() { |
| 73 | return list.iterator(); |
| 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public int size() { |
| 78 | return list.size(); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public Object[] toArray() { |
| 83 | return list.toArray(); |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public List<Object> toList() { |
| 88 | return list; |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public boolean isEmpty() { |
| 93 | return list.isEmpty(); |
| 94 | } |
| 95 | } |