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Java > Open Source Codes > org > eclipse > compare > internal > NullViewer


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
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  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.compare.internal;
12
13 import org.eclipse.swt.SWT;
14 import org.eclipse.swt.widgets.*;
15
16 import org.eclipse.compare.CompareViewerPane;
17
18 /**
19  * Used whenever the input is null or no viewer can be found.
20  */
21 public class NullViewer extends AbstractViewer {
22
23     private Control fDummy;
24
25     public NullViewer(Composite parent) {
26
27         fDummy= new Tree(parent, SWT.NULL);
28
29         CompareViewerPane.clearToolBar(parent);
30     }
31
32     public Control getControl() {
33         return fDummy;
34     }
35 }
36
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