| 1 | /********************************************************************** |
| 2 | * Copyright (c) 2012 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 | * Bernd Hufmann - Initial API and implementation |
| 11 | **********************************************************************/ |
| 12 | package org.eclipse.linuxtools.internal.lttng2.ui.views.control; |
| 13 | |
| 14 | import org.eclipse.jface.viewers.ITreeContentProvider; |
| 15 | import org.eclipse.jface.viewers.Viewer; |
| 16 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent; |
| 17 | |
| 18 | /** |
| 19 | * <b><u>TraceControlContentProvider</u></b> |
| 20 | * <p> |
| 21 | * Tree content provider implementation for trace control view. |
| 22 | * </p> |
| 23 | */ |
| 24 | public class TraceControlContentProvider implements ITreeContentProvider { |
| 25 | // ------------------------------------------------------------------------ |
| 26 | // Operations |
| 27 | // ------------------------------------------------------------------------ |
| 28 | /* |
| 29 | * (non-Javadoc) |
| 30 | * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| 31 | */ |
| 32 | @Override |
| 33 | public void dispose() { |
| 34 | } |
| 35 | |
| 36 | /* |
| 37 | * (non-Javadoc) |
| 38 | * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| 39 | */ |
| 40 | @Override |
| 41 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| 42 | } |
| 43 | |
| 44 | /* |
| 45 | * (non-Javadoc) |
| 46 | * @see org.eclipse.jface.viewers.ITreeContentProvider#getElements(java.lang.Object) |
| 47 | */ |
| 48 | @Override |
| 49 | public Object[] getElements(Object inputElement) { |
| 50 | return getChildren(inputElement); |
| 51 | } |
| 52 | |
| 53 | /* |
| 54 | * (non-Javadoc) |
| 55 | * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) |
| 56 | */ |
| 57 | @Override |
| 58 | public Object[] getChildren(Object parentElement) { |
| 59 | |
| 60 | if (parentElement instanceof ITraceControlComponent) { |
| 61 | return ((ITraceControlComponent)parentElement).getChildren(); |
| 62 | } |
| 63 | return new Object[0]; |
| 64 | } |
| 65 | |
| 66 | /* |
| 67 | * (non-Javadoc) |
| 68 | * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) |
| 69 | */ |
| 70 | @Override |
| 71 | public Object getParent(Object element) { |
| 72 | if (element instanceof ITraceControlComponent) { |
| 73 | return ((ITraceControlComponent)element).getParent(); |
| 74 | } |
| 75 | return null; |
| 76 | } |
| 77 | |
| 78 | /* |
| 79 | * (non-Javadoc) |
| 80 | * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) |
| 81 | */ |
| 82 | @Override |
| 83 | public boolean hasChildren(Object element) { |
| 84 | if (element instanceof ITraceControlComponent) { |
| 85 | return ((ITraceControlComponent)element).hasChildren(); |
| 86 | } |
| 87 | return false; |
| 88 | } |
| 89 | } |