Re: Applet loading

Question

Hi
I have added an applet to the jsp. When I ran the applet, It loaded up for the first time. But when I ran it the second time, the applet shows up but the contents aren't being painted. I have attached the applet files but avoided posting the whole project.
I have a stand alone application that I want to implement in the applet. I have the same code running in a frame where it runs fine. Could some one help me out in understanding why it doesn't work. The empty methods are yet to be implemented. They are required for my application to run.
package aple;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.geom.AffineTransform;
import javax.swing.JApplet;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
public class NewJApplet extends JApplet implements MouseListener,
        MouseMotionListener,MouseWheelListener{
    public Graphics2D g2;
    AffineTransform atf = new AffineTransform();
    sketch sk = new sketch();
    //JPanel jp = new JPanel();
    JMenuBar menuBar = new JMenuBar();
    JMenu jm = new JMenu("file");
    JMenu edit = new JMenu("edit");
    JMenuItem mi = new JMenuItem("asdf");
    @Override
    public void init() {
        //this.add(sk);
        getContentPane().setBackground(Color.BLACK);       
        jm.add(mi);
        menuBar.add(jm);
        menuBar.add(edit);
        this.setJMenuBar(menuBar);                 
        addMouseListener(this);
        addMouseMotionListener(this);
        addMouseWheelListener(this);
    @Override
    public void paint(Graphics g){
        int n = 0;
        g2 = (Graphics2D)g;
        AffineTransform ati = new AffineTransform();
        //Affine transform is translated
        ati= AffineTransform.getTranslateInstance(this.getWidth()/2, this.getHeight()/2);
        Axis2d xAxis = new Axis2d(g2,40,this.getHeight()/2,this.getWidth()-40,this.getHeight()/2,atf);
        Axis2d yAxis = new Axis2d(g2,this.getWidth()/2,40,this.getWidth()/2,this.getHeight()-40,atf);
    public void mouseClicked(MouseEvent e) {
    public void mousePressed(MouseEvent e) {
    public void mouseReleased(MouseEvent e) {
    public void mouseEntered(MouseEvent e) {
    public void mouseExited(MouseEvent e) {
    public void mouseDragged(MouseEvent e) {
    public void mouseMoved(MouseEvent e) {
    public void mouseWheelMoved(MouseWheelEvent e) {
    // TODO overwrite start(), stop() and destroy() methods
}Axis2d Class
package aple;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Line2D;
import java.awt.geom.Path2D;
public class Axis2d {
    public Axis2d(Graphics2D g2, int x0, int y0, int x1, int y1, AffineTransform atf) {
    g2.setColor(Color.WHITE);    
    float[] dashPattern = { 10,4,10,4};
    g2.setStroke(new BasicStroke(1, BasicStroke.CAP_ROUND,
                                  BasicStroke.JOIN_MITER, 10,
                                  dashPattern, 0));
    Line2D.Double line = new Line2D.Double((double)x0,(double)y0,(double)x1,(double)y1);
    Shape transformedLine = new Path2D.Double(line, atf);
    g2.draw(transformedLine);   
     g2.setStroke(new BasicStroke(1));
}

Answer 1

Hi
If any one was working on the problem, I found that I haven't called the repaint method any where. The contents I included in the applet code are being added to the frame, only that I wasn't able to see them cause they were not painted. Once I press the menu (click just below the Applet menubar) the whole thing gets painted and I am able to see the contents.
bye