// Lars Sorensen TYJava in 21 days
// excode from pages 282-287
//

import java.awt.*;

public class GUI extends java.applet.Applet  
  {
    Frame window;
    Point d;	

    public void init() 
      {
       add(new Button("Open Window"));
       add(new Button("Close Window"));
       window = new MyFrame("A Popup Window");
       window.resize(75,75);
       window.hide();
      } // end of init

    public boolean action(Event evt, Object arg) {
      if (evt.target instanceof Button) 
       {
	String label = (String)arg;
	if (label.equals("Open Window"))
         {
	  if (!window.isShowing()) window.show();
	 }
	else if (label.equals("Close Window")) {
	  if (window.isShowing()) window.hide();
	}
       }
      return true;

   } // end of action

} // end of class GUI


class MyFrame extends Frame
  {
 
  Dialog dl;
  Label l;
  TextField tf;

  MyFrame(String title) // constructor
   {
    super(title);
    MenuBar mb = new MenuBar();
    Menu m = new Menu("Colors");
    m.add(new MenuItem("Red"));
    m.add(new MenuItem("Blue"));
    m.add(new MenuItem("Green"));
    m.add(new MenuItem("-"));
    m.add(new CheckboxMenuItem("Reverse Text"));
    m.add(new MenuItem("Set Text..."));
    mb.add(m);
    setMenuBar(mb);
    
    setLayout(new GridLayout(1,1));

    l = new Label("Howdy Folks!", Label.CENTER);
    add(l);

    // make dialog for this window
    dl = new Dialog(this, "Enter Text",true);
    dl.setLayout(new GridLayout(2,1,30,30));
    tf = new TextField(l.getText(),20);
    dl.add(tf);
    dl.add(new Button("Press Here"));
    dl.resize(75,75);
   } // end of constructor MyFrame

  public boolean action(Event evt, Object arg) 
    {
      String label = (String)arg;
      if (evt.target instanceof MenuItem)  
       {
        if (label.equals("Red")) { setBackground(Color.red); repaint(); }
        else if (label.equals("Blue")) { setBackground(Color.blue); repaint(); }
        else if (label.equals("Green")) { setBackground(Color.green); repaint(); }
        else if (label.equals("Set Text...")) dl.show();
       }
      if (evt.target instanceof CheckboxMenuItem) 
       {
         if (getForeground() == Color.black) setForeground(Color.white);
         else setForeground(Color.black);
       }
      if (evt.target instanceof Button)
       {
         if (label == "Press Here") 
          {
           System.out.println(tf.getText());
	   l.setText(tf.getText()); 
	   dl.hide();
          }
       }
      return true;

    } // end of action

} // end of class MyFrame