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| 14. 37. 6. HyperlinkListener例 |
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import java.io.IOException;
import java.net.URL;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.Document;
class ActivatedHyperlinkListener implements HyperlinkListener {
JEditorPane editorPane;
public ActivatedHyperlinkListener(JEditorPane editorPane) {
this.editorPane = editorPane;
}
public void hyperlinkUpdate(HyperlinkEvent hyperlinkEvent) {
HyperlinkEvent.EventType type = hyperlinkEvent.getEventType();
final URL url = hyperlinkEvent.getURL();
if (type == HyperlinkEvent.EventType.ENTERED) {
System.out.println("URL: " + url);
} else if (type == HyperlinkEvent.EventType.ACTIVATED) {
System.out.println("Activated");
Document doc = editorPane.getDocument();
try {
editorPane.setPage(url);
} catch (IOException ioException) {
System.out.println("Error following link, Invalid link");
editorPane.setDocument(doc);
}
}
}
}
public class EditorPaneSample {
public static void main(String args[]) {
JFrame frame = new JFrame("EditorPane Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
try {
JEditorPane editorPane = new JEditorPane("http://www.google.com");
editorPane.setEditable(false);
HyperlinkListener hyperlinkListener = new ActivatedHyperlinkListener(editorPane);
editorPane.addHyperlinkListener(hyperlinkListener);
JScrollPane scrollPane = new JScrollPane(editorPane);
frame.add(scrollPane);
} catch (IOException e) {
System.err.println("Unable to load: " + e);
}
frame.setSize(640, 480);
frame.setVisible(true);
}
}
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