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42
43 import java.awt.*;
44 import java.awt.event.*;
45 import java.net.URL  ;
46 import javax.swing.*;
47 import javax.swing.tree.*;
48 import javax.swing.filechooser.*;
49
50 import org.jdom.Document;
51 import org.jdom.input.SAXBuilder;
52 import org.jdom.contrib.output.JTreeOutputter;
53
54
63 public class JTreeOutputterDemo implements ActionListener {
64
65 public JFrame frame;
66 public Document doc;
67 public DefaultMutableTreeNode root;
68 public JTreeOutputter outputter;
69 public JTree tree;
70 public JScrollPane scrollPane;
71 public SAXBuilder saxBuilder;
72 public JMenuItem openFile, openURL, openSQL, exitMenu;
73 public JButton openButton, reloadButton, exitButton, aboutButton;
74
75 public static void main(String [] args) {
76 new JTreeOutputterDemo();
77 }
78
79 public JTreeOutputterDemo() {
80
81 frame = new JFrame(" JDOM Viewer 1.0");
82 JMenuBar menuBar = new JMenuBar();
83 JMenu menu = new JMenu("File");
84 openFile = new JMenuItem("Open XML File");
85 openFile.addActionListener(this);
86 openURL = new JMenuItem("Open URL Stream");
87 openURL.addActionListener(this);
88 openSQL = new JMenuItem("Query Database");
89 openSQL.addActionListener(this);
90 exitMenu = new JMenuItem("Exit");
91 exitMenu.addActionListener(this);
92 menu.add(openFile);
93 menu.add(openURL);
94 menu.add(new JSeparator());
95 menu.add(openSQL);
96 menu.add(new JSeparator());
97 menu.add(exitMenu);
98 menuBar.add(menu);
99 frame.setJMenuBar(menuBar);
100
101 openButton = new JButton("Open");
102 openButton.addActionListener(this);
103 reloadButton = new JButton("Reload");
104 reloadButton.addActionListener(this);
105 exitButton = new JButton("Exit");
106 exitButton.addActionListener(this);
107 aboutButton = new JButton("About");
108 aboutButton.addActionListener(this);
109 JPanel buttonPanel = new JPanel();
110 buttonPanel.add(openButton);
111 buttonPanel.add(reloadButton);
112 buttonPanel.add(exitButton);
113 buttonPanel.add(aboutButton);
114
115 root = new DefaultMutableTreeNode("JDOM");
116
117 outputter = new JTreeOutputter(true);
118
119 tree = new JTree(root);
120
121 saxBuilder = new SAXBuilder();
122
123 scrollPane = new JScrollPane();
124 scrollPane.getViewport().add(tree);
125
126 frame.setSize(400,400);
127 frame.getContentPane().setLayout(new BorderLayout());
128 frame.getContentPane().add("Center", scrollPane);
129 frame.getContentPane().add("South", buttonPanel);
130
131 frame.addWindowListener(new WindowAdapter() {
132 public void windowClosing(WindowEvent evt) {
133 System.exit(0);
134 }
135 });
136
137 frame.setVisible(true);
138
139 }
140
141 public void actionPerformed(ActionEvent e) {
142 if (e.getSource() == openButton || e.getSource() == openFile) {
144 doFile();
145 }
146 if (e.getSource() == openURL) {
148 doURL();
149 }
150 if (e.getSource() == openSQL) {
152 doSQL();
153 }
154 if (e.getSource() == exitButton || e.getSource() == exitMenu) {
156 System.exit(0);
157 }
158 }
159
160 public void doFile() {
161 JFileChooser fc = new JFileChooser();
162 fc.setDialogTitle("Select an XML File");
163 int returnVal = fc.showDialog(frame, "Load XML");
164 if (returnVal == 0) {
165 try {
166 doc = saxBuilder.build(fc.getSelectedFile());
167 } catch (Exception e) {e.printStackTrace();}
168 outputter.output(doc, root);
169 }
170 }
171
172 public void doURL() {
173 URLDialog urlDialog = new URLDialog(frame);
174 if (urlDialog.getURL() != null) {
175 try {
176 doc = saxBuilder.build(new URL (urlDialog.getURL()));
177 } catch (Exception e) {
178 e.printStackTrace();
179 }
180 outputter.output(doc, root);
181 }
182 }
183
184 public void doSQL() {
185 }
186
187 }
188
189 class URLDialog extends JDialog implements ActionListener {
190
191 public String url;
192 public JTextField urlField;
193 public JButton okButton, cancelButton;
194
195 public URLDialog(Frame frame) {
196 super(frame, "Enter A URL", true);
197 urlField = new JTextField("http://");
198 JPanel buttonPanel = new JPanel();
199 okButton = new JButton("OK");
200 okButton.addActionListener(this);
201 cancelButton = new JButton("Cancel");
202 cancelButton.addActionListener(this);
203 buttonPanel.add(okButton);
204 buttonPanel.add(cancelButton);
205 getContentPane().setLayout(new BorderLayout());
206 getContentPane().add("North", urlField);
207 getContentPane().add("South", buttonPanel);
208 setSize(400, 150);
209 setVisible(true);
210 }
211
212 public String getURL() {
213 return this.url;
214 }
215
216 public void actionPerformed(ActionEvent e) {
217 if (e.getSource() == okButton) {
218 this.url = urlField.getText(); setVisible(false);
219 }
220 if (e.getSource() == cancelButton) {
221 setVisible(false);
222 }
223 }
224
225 }
226 |
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