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Java > Open Source Codes > org > eclipse > pde > internal > ui > parts > TreePart


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.pde.internal.ui.parts;
12
13 import org.eclipse.jface.viewers.DoubleClickEvent;
14 import org.eclipse.jface.viewers.IDoubleClickListener;
15 import org.eclipse.jface.viewers.ISelectionChangedListener;
16 import org.eclipse.jface.viewers.IStructuredSelection;
17 import org.eclipse.jface.viewers.SelectionChangedEvent;
18 import org.eclipse.jface.viewers.StructuredViewer;
19 import org.eclipse.jface.viewers.TreeViewer;
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.widgets.Button;
22 import org.eclipse.swt.widgets.Composite;
23 import org.eclipse.ui.forms.widgets.FormToolkit;
24
25 public class TreePart extends StructuredViewerPart {
26     
27     /**
28      * Constructor for TreePart.
29      * @param buttonLabels
30      */
31     public TreePart(String JavaDoc[] buttonLabels) {
32         super(buttonLabels);
33     }
34     
35     protected TreeViewer createTreeViewer(Composite parent, int style) {
36         return new TreeViewer(parent, style);
37     }
38
39     /*
40      * @see StructuredViewerPart#createStructuredViewer(Composite, FormWidgetFactory)
41      */
42     protected StructuredViewer createStructuredViewer(Composite parent, int style, FormToolkit toolkit) {
43         style |= SWT.H_SCROLL | SWT.V_SCROLL;
44         if (toolkit == null)
45             style |= SWT.BORDER;
46         else
47             style |= toolkit.getBorderStyle();
48         TreeViewer treeViewer = createTreeViewer(parent, style);
49         treeViewer.addSelectionChangedListener(new ISelectionChangedListener () {
50             public void selectionChanged(SelectionChangedEvent e) {
51                 TreePart.this.selectionChanged((IStructuredSelection)e.getSelection());
52             }
53         });
54         treeViewer.addDoubleClickListener(new IDoubleClickListener() {
55             public void doubleClick(DoubleClickEvent e) {
56                 TreePart.this.handleDoubleClick((IStructuredSelection)e.getSelection());
57             }
58         });
59         return treeViewer;
60     }
61     
62     public TreeViewer getTreeViewer() {
63         return (TreeViewer)getViewer();
64     }
65     /*
66      * @see SharedPartWithButtons#buttonSelected(int)
67      */
68     protected void buttonSelected(Button button, int index) {
69     }
70     
71     protected void selectionChanged(IStructuredSelection selection) {
72     }
73     protected void handleDoubleClick(IStructuredSelection selection) {
74     }
75 }
76
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