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1
7
8 package org.dom4j.swing;
9
10 import java.util.ArrayList  ;
11 import java.util.Enumeration ;
12 import java.util.List ;
13
14 import javax.swing.tree.TreeNode ;
15
16 import org.dom4j.Branch;
17 import org.dom4j.CharacterData;
18 import org.dom4j.Node;
19
20
31 public class BranchTreeNode extends LeafTreeNode {
32
33 protected List children;
34
35 public BranchTreeNode() {
36 }
37
38 public BranchTreeNode(Branch xmlNode) {
39 super(xmlNode);
40 }
41
42 public BranchTreeNode(TreeNode parent, Branch xmlNode) {
43 super(parent, xmlNode);
44 }
45
46 public Enumeration children() {
49 return new Enumeration () {
50 private int index = -1;
51
52 public boolean hasMoreElements() {
53 return (index + 1) < getChildCount();
54 }
55
56 public Object nextElement() {
57 return getChildAt(++index);
58 }
59 };
60 }
61
62 public boolean getAllowsChildren() {
63 return true;
64 }
65
66 public TreeNode getChildAt(int childIndex) {
67 return (TreeNode ) getChildList().get(childIndex);
68 }
69
70 public int getChildCount() {
71 return getChildList().size();
72 }
73
74 public int getIndex(TreeNode node) {
75 return getChildList().indexOf(node);
76 }
77
78 public boolean isLeaf() {
79 return getXmlBranch().nodeCount() <= 0;
80 }
81
82 public String toString() {
83 return xmlNode.getName();
84 }
85
86
89
94 protected List getChildList() {
95 if (children == null) {
99 children = createChildList();
100 }
101
102 return children;
103 }
104
105
110 protected List createChildList() {
111 Branch branch = getXmlBranch();
113 int size = branch.nodeCount();
114 List childList = new ArrayList (size);
115
116 for (int i = 0; i < size; i++) {
117 Node node = branch.node(i);
118
119 if (node instanceof CharacterData) {
121 String text = node.getText();
122
123 if (text == null) {
124 continue;
125 }
126
127 text = text.trim();
128
129 if (text.length() <= 0) {
130 continue;
131 }
132 }
133
134 childList.add(createChildTreeNode(node));
135 }
136
137 return childList;
138 }
139
140
148 protected TreeNode createChildTreeNode(Node xmlNode) {
149 if (xmlNode instanceof Branch) {
150 return new BranchTreeNode(this, (Branch) xmlNode);
151 } else {
152 return new LeafTreeNode(this, xmlNode);
153 }
154 }
155
156 protected Branch getXmlBranch() {
157 return (Branch) xmlNode;
158 }
159 }
160
161
197 |
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