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1 package net.sourceforge.pmd.util.viewer.model;
2
3
4 import java.util.ArrayList  ;
5 import java.util.List ;
6
7 import javax.swing.event.TreeModelEvent ;
8 import javax.swing.event.TreeModelListener ;
9 import javax.swing.tree.TreeModel ;
10 import javax.swing.tree.TreePath ;
11
12 import net.sourceforge.pmd.ast.SimpleNode;
13
14
15
21
22 public class ASTModel implements TreeModel {
23
24 private SimpleNode root;
25 private List listeners = new ArrayList (1);
26
27
32 public ASTModel(SimpleNode root) {
33 this.root = root;
34 }
35
36
39 public Object getChild(Object parent, int index) {
40 return ((SimpleNode) parent).jjtGetChild(index);
41 }
42
43
46 public int getChildCount(Object parent) {
47 return ((SimpleNode) parent).jjtGetNumChildren();
48 }
49
50
53 public int getIndexOfChild(Object parent, Object child) {
54 SimpleNode node = ((SimpleNode) parent);
55 for (int i = 0; i < node.jjtGetNumChildren(); i++)
56 if (node.jjtGetChild(i).equals(child)) {
57 return i;
58 }
59 return -1;
60 }
61
62
65 public boolean isLeaf(Object node) {
66 return ((SimpleNode) node).jjtGetNumChildren() == 0;
67 }
68
69
72 public Object getRoot() {
73 return root;
74 }
75
76
79 public void valueForPathChanged(TreePath path, Object newValue) {
80 throw new UnsupportedOperationException ();
81 }
82
83
86 public void addTreeModelListener(TreeModelListener l) {
87 listeners.add(l);
88 }
89
90
91
94 public void removeTreeModelListener(TreeModelListener l) {
95 listeners.remove(l);
96 }
97
98
99 protected void fireTreeModelEvent(TreeModelEvent e) {
100 for (int i = 0; i < listeners.size(); i++) {
101 ((TreeModelListener ) listeners.get(i)).treeNodesChanged(e);
102 }
103 }
104
105 }
106
107 |
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