import java.applet.*;
import java.awt.*;

public class GUIexample2 extends Applet {

Button mbutton;
Label mlabel;
Label eid;
Label mousexy;
List mlist;
Choice mchoice;
CheckboxGroup mradio;
Checkbox radio1;
Checkbox radio2;
Checkbox radio3;
Checkbox mcheckbox;
TextField mtext;
Scrollbar mscroll;

public void init() {

  mbutton = new Button("Press here!");
  
  mlabel= new Label ("                                                 ");
  eid= new Label ("Last event id was 0   ");
  mousexy = new Label ("Mouse at x=0 y=0          ");
  
  mlist = new List (2,true);
  mlist.addItem("Perl");
  mlist.addItem("C");
  mlist.addItem("C++");
  mlist.addItem("Java");

  mchoice = new Choice();
  mchoice.addItem("Red");
  mchoice.addItem("Blue");
  mchoice.addItem("Black");
  mchoice.addItem("White");

  mradio = new CheckboxGroup();
  radio1 = new Checkbox("All",mradio,true);
  radio2 = new Checkbox("Odd",mradio,false);
  radio3 = new Checkbox("Even",mradio,false);

  mcheckbox = new Checkbox("This option?");
  
  mtext = new TextField("",20);
  
  mscroll = new Scrollbar(Scrollbar.HORIZONTAL,50,0,1,100);

  Panel p1 = new Panel();
  p1.setLayout(new PackerLayout());
  p1.add("r1;side=top;anchor=w",radio1);
  p1.add("r2;side=top;anchor=w",radio2);
  p1.add("r3;side=top;anchor=w",radio3);

  Panel p2 = new Panel();
  p2.setLayout(new PackerLayout());
  p2.add("c1;side=top",mchoice);
  p2.add("l1;side=top",mlist);

  Panel p3 = new Panel();
  p3.setLayout(new PackerLayout());
  p3.add("b1;side=left;expand=true;fill=x;anchor=w",mcheckbox);
  p3.add("b2;side=right;expand=true;fill=x;anchor=w",mbutton);

  Panel p4 = new Panel();
  p4.setLayout(new PackerLayout());
  p4.add("p4;side=bottom;expand=true;fill=x",p3);
  p4.add("s1;side=bottom;expand=true;fill=x",mscroll);
  p4.add("l1;side=bottom;expand=true;fill=x",mlabel);

  Panel p5 = new Panel();
  p5.setLayout(new PackerLayout());
  p5.add("p1;side=left;anchor=s",p1);
  p5.add("p2;side=left;anchor=s",p2);
  p5.add("p4;side=left;anchor=s;padx=5",p4);

  Panel p6 = new Panel();
  p6.setLayout(new PackerLayout());
  p6.add("l2;side=left;expand=true;fill=x",mousexy);
  p6.add("l2;side=right;expand=true;fill=x",eid);
  
  this.setLayout(new PackerLayout());
  this.add("p5;side=bottom;anchor=s",p5);
  this.add("p6;side=top;anchor=n",p6);
}

public boolean handleEvent(Event e) {
  Object arg = e.arg;
  eid.setText("Last event id was "+String.valueOf(e.id));
  mousexy.setText("Mouse at x="+String.valueOf(e.x)+" y="+String.valueOf(e.y));
  switch (e.id) {
    case Event.ACTION_EVENT:
      if(e.target==mbutton) {
        mlabel.setText("You pressed the button!");
        return true;
      }
      if(e.target==mcheckbox) {
        mlabel.setText("You pressed the checkbox!");
        return true;
      }
      if(e.target==radio1) {
        mlabel.setText("You selected All!");
        return true;
      }
      if(e.target==radio2) {
        mlabel.setText("You selected Odd!");
        return true;
      }
      if(e.target==radio3) {
        mlabel.setText("You selected Even!");
        return true;
      }
      if(e.target==mchoice) {
        mlabel.setText("You selected "+mchoice.getSelectedItem()+"!");
        return true;
      }
      if(e.target==mtext) {
        mlabel.setText("You entered "+mtext.getText()+"!");
        return true;
      }
      break;
     case Event.LIST_SELECT:
      if(e.target==mlist) {
        mlabel.setText("You selected "+arg.toString()+" !");
        return true;
      }
      break;
     case Event.LIST_DESELECT:
      if(e.target==mlist) {
        mlabel.setText("You deselected "+arg.toString()+"!");
        return true;
      }
      break;
     case Event.SCROLL_LINE_UP:
     case Event.SCROLL_LINE_DOWN:
     case Event.SCROLL_PAGE_UP:
     case Event.SCROLL_PAGE_DOWN:
     case Event.SCROLL_ABSOLUTE:
      if(e.target==mscroll) {
          mlabel.setText("New value of scrollbar is "+
		String.valueOf(mscroll.getValue())+"!");
	return true;
      }
      break;
     case Event.MOUSE_DOWN:
        mlabel.setText("Mouse button was pressed!");
      return true;
     case Event.MOUSE_UP:
        mlabel.setText("Mouse button was released!");
      return true;
     case Event.MOUSE_DRAG:
        mlabel.setText("Mouse was dragged!");
      return true;
   }
   return super.handleEvent(e);
}

}