import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class TestRegexConstrainedDocument extends JPanel 
    implements ActionListener {

    JTextField regexField, filterField;
    JButton regexButton;
    RegexConstrainedDocument regexDoc;

    public TestRegexConstrainedDocument() {
        setLayout (new BoxLayout (this, BoxLayout.Y_AXIS));
        // top - regex stuff
        JPanel topPanel = new JPanel();
        JLabel rLabel = new JLabel ("regex:" );
        topPanel.add (rLabel);
        regexField = new JTextField (20);
        topPanel.add(regexField);
        regexButton = new JButton ("Set");
        regexButton.addActionListener (this);
        topPanel.add (regexButton);
        add (topPanel);
        // bottom - filterfield
        regexDoc =
            new RegexConstrainedDocument ();
        filterField = new JTextField (regexDoc, "",  50);
        add (filterField);
    }

    public void actionPerformed (ActionEvent e) {
        System.out.println ("actionperformed");
        if (e.getSource() == regexButton) {
            System.out.println ("regexbutton");
            regexDoc.setPatternByString (regexField.getText());
        }
    }

    public static void main (String[] args) {
        JComponent c = new TestRegexConstrainedDocument();
        JFrame f = new JFrame ("Regex filtering");
        f.getContentPane().add (c);
        f.pack();
        f.setVisible(true);
    }


}