| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ltk.internal.ui.refactoring; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * A default content provider to present a hierarchy of <code>IChange</code> |
| * objects in a tree viewer. |
| */ |
| class ChangeElementContentProvider implements ITreeContentProvider { |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#inputChanged |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // do nothing |
| } |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#getChildren |
| */ |
| public Object[] getChildren(Object o) { |
| PreviewNode element= (PreviewNode)o; |
| return element.getChildren(); |
| } |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#getParent |
| */ |
| public Object getParent(Object element){ |
| return ((PreviewNode)element).getParent(); |
| } |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#hasChildren |
| */ |
| public boolean hasChildren(Object element){ |
| Object[] children= getChildren(element); |
| return children != null && children.length > 0; |
| } |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#dispose |
| */ |
| public void dispose(){ |
| } |
| |
| /* non Java-doc |
| * @see ITreeContentProvider#getElements |
| */ |
| public Object[] getElements(Object element){ |
| return getChildren(element); |
| } |
| } |
