Name: paC48320 Date: 10/28/97


I am a licensee(Oki Electric Industry Co., Ltd.).

This bug appears in Swing0.5.1 on JDK 1.1.4,5D, 1.2Q.
As followin code, scrollbar of JTextArea doesn't appear
even if I use JScrollPane.

If I use a construct JTextArea(int, int),
this bug appears.
If I use a construct JTextArea() or JTextArea(String),
this bug doesn't appear.
I think JTextArea which has row/column data can not
work with JScrollPane.

import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.*;
//import java.swing.*;

public class JTextAreaTest2 {
    public static void main(String args[]) {
        Frame frame = new Frame("JTextArea Test2");
        frame.setLayout(new FlowLayout());
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        MenuBar menuBar = new MenuBar();
        Menu menu = new Menu("File");
        MenuItem quitMenuItem = new MenuItem("Quit");
        quitMenuItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });
        menu.add(quitMenuItem);
        menuBar.add(menu);
        frame.setMenuBar(menuBar);
        JPanel panel = new JPanel(new BorderLayout());
        panel.setAlignmentX(JPanel.LEFT_ALIGNMENT);

        JTextArea textArea = new JTextArea(10,10);
        //JTextArea textArea = new JTextArea();
        textArea.append("This is\na JTextArea.\n");
        textArea.append("But it\ncannot scroll.\n");
        textArea.append("Please type more until scroll.\n")
        JScrollPane scroller = new JScrollPane() {
            public Dimension getPreferredSize() {
                return new Dimension(300,200);
            }
            public float getAlignmentX() {
                return LEFT_ALIGNMENT;
            }
        };
        scroller.getViewport().add(textArea);
        textArea.setFont(new Font("SansSerif", Font.PLAIN, 12));
        panel.add("Center", scroller);
        textArea.setForeground(Color.black);
        textArea.setBackground(Color.white);

        //panel.add(textArea);
        frame.add(panel);
        frame.pack();
        frame.setVisible(true);
    }
}
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