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/**
* @version 1.10 1999-09-16
* @author Cay Horstmann
*/
import java.awt.Container;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class TextTransferTest {
public static void main(String[] args) {
JFrame frame = new TextTransferFrame();
frame.show();
}
}
class TextTransferFrame extends JFrame implements ActionListener {
public TextTransferFrame() {
setTitle("TextTransferTest");
setSize(300, 300);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
Container contentPane = getContentPane();
textArea = new JTextArea();
contentPane.add(new JScrollPane(textArea), "Center");
JPanel panel = new JPanel();
copyButton = new JButton("Copy");
panel.add(copyButton);
copyButton.addActionListener(this);
pasteButton = new JButton("Paste");
panel.add(pasteButton);
pasteButton.addActionListener(this);
contentPane.add(panel, "South");
sysClipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
}
public void actionPerformed(ActionEvent event) {
Object source = event.getSource();
if (source == copyButton)
copy();
else if (source == pasteButton)
paste();
}
private void copy() {
String text = textArea.getSelectedText();
if (text.equals(""))
text = textArea.getText();
StringSelection selection = new StringSelection(text);
sysClipboard.setContents(selection, null);
}
private void paste() {
String text;
Transferable contents = sysClipboard.getContents(this);
if (contents == null)
return;
try {
text = (String) (contents.getTransferData(DataFlavor.stringFlavor));
textArea.replaceSelection(text);
} catch (Exception e) {
textArea.append("Error: " + e);
}
}
private JTextArea textArea;
private JButton copyButton;
private JButton pasteButton;
private Clipboard sysClipboard;
}
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