1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (c) 1998, 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
package com.sun.tools.example.debug.gui;
import javax.swing.tree.*;
public class SingleLeafTreeSelectionModel extends DefaultTreeSelectionModel {
private static final long serialVersionUID = -7849105107888117679L;
SingleLeafTreeSelectionModel() {
super();
selectionMode = SINGLE_TREE_SELECTION;
}
@Override
public void setSelectionPath(TreePath path) {
if(((TreeNode)(path.getLastPathComponent())).isLeaf()) {
super.setSelectionPath(path);
}
}
@Override
public void setSelectionPaths(TreePath[] paths) {
// Only look at first path, as all others will be
// ignored anyway in single tree selection mode.
if(((TreeNode)(paths[0].getLastPathComponent())).isLeaf()) {
super.setSelectionPaths(paths);
}
}
@Override
public void addSelectionPath(TreePath path) {
if(((TreeNode)(path.getLastPathComponent())).isLeaf()) {
super.setSelectionPath(path);
}
}
@Override
public void addSelectionPaths(TreePath[] paths) {
// Only look at first path, as all others will be
// ignored anyway in single tree selection mode.
if(((TreeNode)(paths[0].getLastPathComponent())).isLeaf()) {
super.addSelectionPaths(paths);
}
}
}
|
