Java Applet Panel problems with CardLayout

Question

Hi, I have a problem a I have been stucked for 2 days.
I created 3 Panels to use with CardLayout. I would switch between those 3 panels depending on user interaction. I have some textfields and text areas on the 2nd and 3rd Panel. On the 1st panel, I would like to use g.drawstring to write some stuff on that panel, but the words would be blocked off if it goes to where the components are on the other panels.
Thanks.

Answer 1

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.awt.font.*;
public class CardTest extends Applet
    Panel panel;
    CardLayout cards;
    public void init()
    {   cards = new CardLayout();
        panel = new Panel(cards);
        panel.add("one", new GraphicPanel());
        panel.add("two", getPanel("panel two"));
        panel.add("three", getPanel("panel three"));
        setLayout(new BorderLayout());
        add(getNavPanel(), "North");
        add(panel);
    private Panel getNavPanel()
        final Button
            last = new Button("last"),
            next = new Button("next");
        ActionListener l = new ActionListener()
            public void actionPerformed(ActionEvent e)
                Button button = (Button)e.getSource();
                if(button == last)
                    cards.previous(panel);
                if(button == next)
                    cards.next(panel);
        last.addActionListener(l);
        next.addActionListener(l);
        Panel panel = new Panel();
        panel.add(last);
        panel.add(next);
        return panel;
    private Panel getPanel(String s)
        Panel panel = new Panel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.weighty = 1.0;
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        panel.add(new Button("button"), gbc);
        panel.add(new TextArea(s, 8, 16), gbc);
        return panel;
    public static void main(String[] args)
        Applet applet = new CardTest();
        Frame f = new Frame();
        f.addWindowListener(new WindowAdapter()
            public void windowClosing(WindowEvent e)
                System.exit(0);
        f.add(applet);
        f.setSize(400,400);
        f.setLocation(200,200);
        applet.init();
        f.setVisible(true);
class GraphicPanel extends Panel
    Font font;
    String text;
    final int PAD = 25;
    public GraphicPanel()
        font = new Font("lucida bright regular", Font.PLAIN, 22);
        text = "Hello World";
    public void paint(Graphics g)
        super.paint(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        int w = getWidth();
        int h = getHeight();
        int dia = Math.min(w,h)/6;
        g2.setPaint(Color.blue);
        g2.drawLine(PAD, PAD, w - PAD, PAD);
        g2.drawLine(PAD, h - PAD, w - PAD, h - PAD);
        g2.setPaint(Color.green.darker());
        g2.drawOval(w/2 - dia/2, h*2/3, dia, dia);
        g2.setFont(font);
        FontRenderContext frc = g2.getFontRenderContext();
        float width = (float)font.getStringBounds(text, frc).getWidth();
        LineMetrics lm = font.getLineMetrics(text, frc);
        float x = (w - width)/2;
        float y = (h + lm.getHeight())/2 -lm.getDescent();
        g2.setPaint(Color.black);
        g2.drawString(text, x, y);
}