Java - wrapline en jtextpane

package test;

import java.awt.BorderLayout;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextPane;

public class TestVisual extends JFrame {

    private boolean wrapped;

    private JButton toggleButton = null;

    private JTextPane textPane = null;

    private JPanel noWrapPanel = null;

    private JScrollPane scrollPane = null;

    public TestVisual() {

        super();

        init();

    }

    public void init() {

        this.setSize(300, 200);

        this.setLayout(new BorderLayout());

        wrapped = false;

        textPane = new JTextPane();

        noWrapPanel = new JPanel( new BorderLayout() );

        noWrapPanel.add( textPane );

        scrollPane = new JScrollPane( noWrapPanel );

        toggleButton = new JButton("wrap");

        toggleButton.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent e) {

                if (wrapped == true){

                    scrollPane.setViewportView(noWrapPanel);

                    noWrapPanel.add(textPane);

                    toggleButton.setText("wrap");

                    wrapped = false;

                }else {

                    scrollPane.setViewportView(textPane);

                    toggleButton.setText("unWrap");

                    wrapped = true;

                }

            }

        });

        this.add(scrollPane, BorderLayout.CENTER);

        this.add(toggleButton, BorderLayout.NORTH);

    }

}