relayouting after setViewportView for JScrollPane

[Sergio Baca]

I have 2 JTextArea objects which I'm setting to same JScrollPane, the problem is that one object have bigger text than other and has Vertical Scrollbar, both JTextArea objects have word wrap enabled so they should not have Horizontal Scroll Bar, but when I move from JTextArea with no Vertical Scrollbar, to JTextArea with it, the resulting object is slightly bigger and a Horizontal Scrollbar appears.
Is there a way to call some kind of layout so that size will be evaluated each time ViewportView is set (or after it is set)?

[Laba Jolly]

Originally posted by Sergio Baca:
I have 2 JTextArea objects which I'm setting to same JScrollPane, the problem is that one object have bigger text than other and has Vertical Scrollbar, both JTextArea objects have word wrap enabled so they should not have Horizontal Scroll Bar, but when I move from JTextArea with no Vertical Scrollbar, to JTextArea with it, the resulting object is slightly bigger and a Horizontal Scrollbar appears.
Is there a way to call some kind of layout so that size will be evaluated each time ViewportView is set (or after it is set)?

Can you please clarify your problem? I have some experience with java text elements and may be I can help. Why don't you change text in JTextArea but change text elements in JScrollPane?

[Sergio Baca]

Originally posted by Laba Jolly:

Can you please clarify your problem? I have some experience with java text elements and may be I can help. Why don't you change text in JTextArea but change text elements in JScrollPane?

I simplified my problem, here is the code:

    
public class LabelTest {
    private static final String TEXT = "a big text here....";
    public static void main(String args[]) {
        JFrame frame = new JFrame("Tree Lines");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        Box box = Box.createVerticalBox();
        addTextArea(box);
        addTextArea(box);
        addTextArea(box);
        JScrollPane sp = new JScrollPane();
        frame.getContentPane().add(sp, BorderLayout.CENTER);
        sp.setViewportView(box);
        frame.pack();
        frame.setVisible(true);
    }
 
    private static void addTextArea(Box box) {
        box.add(new JLabel("comment:"));
        box.add(generateTextArea());
    }
 
    private static JTextArea generateTextArea() {
        JTextArea textArea = new JTextArea(TEXT);
        textArea.setWrapStyleWord(true);
        textArea.setLineWrap(true);
        textArea.setBackground(Color.ORANGE);
        return textArea;
    }
 
}

When I enlarge window, it automatically relayout text, but when I shrink it back, instead of relayout a horizontal scrollbar is appearing.