Desktop App generator general question

Question

So I'm trying out the Desktop Application generator NetBeans feature and having an issue. For the automatically generated File menu, I use the Netbeans "Set Action" feature for a menu item. It generates an empty method in the main class (as well as the (locked) listener code in the GUI class). How can I get my GUI instance from the main class when the GUI is set up to be instantiated as follows: show(new DesktopApplication2View(this));

Answer 1

I want the changes to affect the present GUI (auto generated with the netBeans desktop application feature) in which a SingleFrameApplication class is inherited by the main class. I'm just following netBeans's desktop app framework here. So I've tried working with the getMainFrame() method of the SingleFrameApplication class which returns a JFrame, type casting it to my DesktopApplication2View (GUI class (or boundary class, right?)), but DesktopApplication2View isn't a JFrame, it's a FrameView. So, my question basically is:
if my gui is instantiated using this netbeans desktopapp framework, which generated everything except the code inside loadFileChooser(), how do I access the already visible instance of my GUI class?
* DesktopApplication2.java
package desktopapplication2;
import java.io.File;
import javax.swing.JFileChooser;
import org.jdesktop.application.Action;
import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;
* The main class of the application.
public class DesktopApplication2 extends SingleFrameApplication {
     * At startup create and show the main frame of the application.
    @Override protected void startup() {
        show(new DesktopApplication2View(this));
     * This method is to initialize the specified window by injecting resources.
     * Windows shown in our application come fully initialized from the GUI
     * builder, so this additional configuration is not needed.
    @Override protected void configureWindow(java.awt.Window root) {
     * A convenient static getter for the application instance.
     * @return the instance of DesktopApplication2
    public static DesktopApplication2 getApplication() {
        return Application.getInstance(DesktopApplication2.class);
     * Main method launching the application.
    public static void main(String[] args) {
        launch(DesktopApplication2.class, args);
    @Action //the method skeleton was auto-generated in this class instead of the GUI class
    public void loadFileChooser() {
        final JFileChooser jfc = new JFileChooser();
        int a = jfc.showOpenDialog(null);
            File file;
            if (a == JFileChooser.APPROVE_OPTION) {
                   file = jfc.getSelectedFile();
                   String s = file.getName();
                   if(s.charAt(s.length()-1)!= 'f' && s.charAt(s.length()-2)!= 'i' && s.charAt(s.length()-3)!= 'g')
                       System.out.println("Not a gif");
                   else{
                                      //I want to update my GUI here
}Edited by: halofan on Jun 5, 2008 3:10 PM