1 /*
2 Copyright (C) 2000 - 2007 Grid Systems, S.A.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2, as
6 published by the Free Software Foundation.
7
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17
18 /*
19 * Project: KernelConfigurator
20 * Created on 24-feb-2004
21 *
22 * Copyright (c)2003 Grid Systems
23 */
24 package com.gridsystems.config.app;
25
26 import javax.swing.event.TreeModelListener;
27 import javax.swing.tree.TreeModel;
28 import javax.swing.tree.TreePath;
29
30 /**
31 * A tree model that uses ConfigNodes as its backend data structure.
32 * <p>
33 * This version uses "immutable" trees, so it does not implements the model listener
34 * and path change related methods.
35 *
36 * @author <a href="mailto:rruiz@gridsystems.com">Rodrigo Ruiz Aguayo</a>
37 * @version 1.0
38 */
39 public class ConfigNodeModel implements TreeModel {
40 /**
41 * The tree root.
42 */
43 private ConfigNode root;
44
45 /**
46 * Creates a model with the specified node as the tree root.
47 *
48 * @param root The root node
49 */
50 public ConfigNodeModel(ConfigNode root) {
51 this.root = root;
52 }
53
54 /**
55 * {@inheritDoc}
56 */
57 public Object getRoot() {
58 return root;
59 }
60
61 /**
62 * {@inheritDoc}
63 */
64 public int getChildCount(Object parent) {
65 ConfigNode node = (ConfigNode)parent;
66 return node.getChildCount();
67 }
68
69 /**
70 * {@inheritDoc}
71 */
72 public boolean isLeaf(Object node) {
73 return getChildCount(node) == 0;
74 }
75
76 /**
77 * {@inheritDoc}
78 */
79 public void addTreeModelListener(TreeModelListener l) {
80 // unimplemented
81 }
82
83 /**
84 * {@inheritDoc}
85 */
86 public void removeTreeModelListener(TreeModelListener l) {
87 // unimplemented
88 }
89
90 /**
91 * {@inheritDoc}
92 */
93 public Object getChild(Object parent, int index) {
94 ConfigNode node = (ConfigNode)parent;
95 return node.getChild(index);
96 }
97
98 /**
99 * {@inheritDoc}
100 */
101 public int getIndexOfChild(Object parent, Object child) {
102 ConfigNode node = (ConfigNode)parent;
103 return node.indexOf((ConfigNode)child);
104 }
105
106 /**
107 * {@inheritDoc}
108 */
109 public void valueForPathChanged(TreePath path, Object newValue) {
110 // unimplemented
111 }
112 }