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1 package org.oddjob.designer.model;
2
3 import java.util.Enumeration  ;
4 import java.util.LinkedList ;
5 import java.util.Vector ;
6
7 import javax.swing.event.TreeModelEvent ;
8 import javax.swing.event.TreeModelListener ;
9 import javax.swing.tree.TreeModel ;
10 import javax.swing.tree.TreeNode ;
11 import javax.swing.tree.TreePath ;
12
13
14
19
20 public class DesignTreeModel implements TreeModel {
21
22
23 private final Vector tmListeners = new Vector ();
24
25
26 private DesignTreeNode root;
27
28
33 public DesignTreeModel(DesignComponent node) {
34 root = new DesignTreeNode(this, null, node);
35 }
36
37 public void build() {
38 root.build();
39 }
40
41 public void addTreeModelListener(TreeModelListener tml) {
42 synchronized (tmListeners) {
43 tmListeners.add(tml);
44 }
45 }
46
47
48 public Object getChild(Object parent, int index) {
49 return ((DesignTreeNode)parent).getChildAt(index);
50 }
51
52 public boolean isLeaf(Object node) {
53 return ((DesignTreeNode)node).isLeaf();
54 }
55
56 public int getChildCount(Object parent) {
57 return ((DesignTreeNode)parent).getChildCount();
58 }
59
60 public int getIndexOfChild(Object parent, Object child) {
61 return ((DesignTreeNode)parent).getIndex((DesignTreeNode)child);
62 }
63
64 public Object getRoot() {
65 return root;
66 }
67
68 public void removeTreeModelListener(TreeModelListener tml) {
69 tmListeners.remove(tml);
70 }
71
72 public void valueForPathChanged(TreePath path, Object newValue) {
73 System.err.println("valueForPathChanged");
74 }
75
76 public void fireTreeNodesChanged(TreeNode changed) {
77 LinkedList list = new LinkedList ();
78 for (TreeNode i = changed; i != null; i = i.getParent()) {
79 list.addFirst(i);
80 }
81 TreeModelEvent event = new TreeModelEvent (changed, list.toArray());
82
83 synchronized (tmListeners) {
84 for (Enumeration e = tmListeners.elements();
85 e.hasMoreElements(); ) {
86 TreeModelListener tml = (TreeModelListener )e.nextElement();
87 tml.treeNodesChanged(event);
88 }
89 }
90 }
91
92 public void fireTreeNodesInserted(TreeNode changed, DesignTreeNode child, int index) {
93 LinkedList list = new LinkedList ();
94
95 for (TreeNode i = changed; i != null; i = i.getParent()) {
96 list.addFirst(i);
97 }
98
99 int childIndecies[] = {index};
100 Object children [] = {child};
101
102 TreeModelEvent event = new TreeModelEvent (changed, list.toArray(),
103 childIndecies, children);
104
105 synchronized (tmListeners) {
106 for (Enumeration e = tmListeners.elements();
107 e.hasMoreElements(); ) {
108 TreeModelListener tml = (TreeModelListener )e.nextElement();
109 tml.treeNodesInserted(event);
110 }
111 }
112 }
113
114 public void fireTreeNodesRemoved(TreeNode changed, DesignTreeNode child, int index) {
115 LinkedList list = new LinkedList ();
116
117 for (TreeNode i = changed; i != null; i = i.getParent()) {
118 list.addFirst(i);
119 }
120
121 int childIndecies[] = {index};
122 Object children [] = {child};
123
124 TreeModelEvent event = new TreeModelEvent (changed, list.toArray(),
125 childIndecies, children);
126
127 synchronized (tmListeners) {
128 for (Enumeration e = tmListeners.elements();
129 e.hasMoreElements(); ) {
130 TreeModelListener tml = (TreeModelListener )e.nextElement();
131 tml.treeNodesRemoved(event);
132 }
133 }
134 }
135 }
136 |
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