| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2014 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 | * Patrick Tasse - Initial API and implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.linuxtools.tmf.ui.viewers; |
| 14 | |
| 15 | import java.util.Collection; |
| 16 | |
| 17 | import org.eclipse.jface.viewers.ITreeContentProvider; |
| 18 | import org.eclipse.jface.viewers.Viewer; |
| 19 | |
| 20 | /** |
| 21 | * This implementation of <code>ITreeContentProvider</code> handles the case |
| 22 | * where the viewer input is an unchanging array or collection of elements. |
| 23 | * The elements do not have children. |
| 24 | * |
| 25 | * @author Patrick Tasse |
| 26 | * @since 3.2 |
| 27 | */ |
| 28 | public class ArrayTreeContentProvider implements ITreeContentProvider { |
| 29 | |
| 30 | @Override |
| 31 | public void dispose() { |
| 32 | } |
| 33 | |
| 34 | @Override |
| 35 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| 36 | } |
| 37 | |
| 38 | @Override |
| 39 | public Object[] getChildren(Object parentElement) { |
| 40 | return null; |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | public Object getParent(Object element) { |
| 45 | return null; |
| 46 | } |
| 47 | |
| 48 | @Override |
| 49 | public boolean hasChildren(Object element) { |
| 50 | return false; |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public Object[] getElements(Object inputElement) { |
| 55 | if (inputElement instanceof Object[]) { |
| 56 | return (Object[]) inputElement; |
| 57 | } |
| 58 | if (inputElement instanceof Collection) { |
| 59 | return ((Collection<?>) inputElement).toArray(); |
| 60 | } |
| 61 | return new Object[0]; |
| 62 | } |
| 63 | |
| 64 | } |