import java.awt.Component;
import java.util.*;
import javax.swing.*;
import javax.swing.JLabel;
import javax.swing.event.ChangeListener;
import org.openide.WizardDescriptor;
import org.openide.util.*;
import org.openide.util.HelpCtx;

public class WizardDescTest {
    
    /** Creates a new instance of WizardDescTest */
    public WizardDescTest() {
    }
    
    static MyWizardDescriptor wd;
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        
        WizardDescriptor.Panel panels[] = new WizardDescriptor.Panel[2];
        panels[0] = new Panel("first panel");
        panels[1] = new Panel("second panel");
        wd = new MyWizardDescriptor(panels);
        wd.addPropertyChangeListener(new Listener());
        java.awt.Dialog d = org.openide.TopManager.getDefault().createDialog(wd);
        d.show();
        
    }
    
    public static class MyWizardDescriptor extends WizardDescriptor {
        
        Object realValue;
        
        private MyWizardDescriptor () {
            super (new WizardDescriptor.Panel[] {});
        }
        
        public MyWizardDescriptor (WizardDescriptor.Panel[] panels) {
            super (panels);
        }
        
        public void setValue (Object obj) {
            setRealValue (obj);
            super.setValue (obj);
        }
        
        public void setRealValue (Object obj) {
            realValue = obj;
        }
        
        public Object getRealValue () {
            return realValue;
        }
    }
    
    public static class Panel implements WizardDescriptor.Panel, WizardDescriptor.FinishPanel {

        private String text;
        public Panel(String text) {
            this.text = text;
        }
        
        public Component getComponent() {
            return new JLabel(text);
        }
        
        public void addChangeListener(ChangeListener l) {
        }
        
        public HelpCtx getHelp() {
            return null;
        }
        
        public boolean isValid() {
            return true;
        }
        
        public void readSettings(Object settings) {
            System.err.println("readSettings of panel: "+text);
            System.out.println("CURRENT VALUE: " + handleValue (wd.getValue ()));
            System.out.println("FUTURE VALUE: " + handleValue (wd.getRealValue ()));
            System.out.println("");
        }
        
        public void removeChangeListener(ChangeListener l) {
            //System.out.println("!!! removeChangeListener !!!");
        }
        
        public void storeSettings(Object settings) {
            System.err.println("storeSettings of panel: "+text);
            System.out.println("CURRENT VALUE: " + handleValue (wd.getValue ()));
            System.out.println("FUTURE VALUE: " + handleValue (wd.getRealValue ()));
            System.out.println("");
        }
        
    }
    
    public static class Listener implements java.beans.PropertyChangeListener {
        
        public void propertyChange(java.beans.PropertyChangeEvent propertyChangeEvent) {
            if (WizardDescriptor.PROP_VALUE.equals(propertyChangeEvent.getPropertyName ())) {
                System.out.println("### VALUE: " + handleValue (wd.getValue ()));
            }
        }
        
    }
    
    public static String handleValue (Object val) {
        if (val == null) return "NULL";
        if (val instanceof String) return (String) val;
        if (WizardDescriptor.FINISH_OPTION.equals (val)) return "FINISH_OPTION";
        if (WizardDescriptor.CANCEL_OPTION.equals (val)) return "CANCEL_OPTION";
        if (WizardDescriptor.CLOSED_OPTION.equals (val)) return "CLOSED_OPTION";
        if (val instanceof JButton) {
            JButton butt = (JButton) val;
            ResourceBundle b = NbBundle.getBundle ("org.openide.Bundle"); // NOI18N
            if (b.getString ("CTL_NEXT").equals (butt.getText ())) return "NEXT_OPTION";
            if (b.getString ("CTL_PREVIOUS").equals (butt.getText ())) return "NEXT_PREVIOUS";
            if (b.getString ("CTL_FINISH").equals (butt.getText ())) return "FINISH_OPTION";
            if (b.getString ("CTL_CANCEL").equals (butt.getText ())) return "CANCEL_OPTION";
        }
        return "UNKNOWN OPTION: " + val;
    }
}