//  DrawingDemoPanelApplet.java  (c) Kari Laitinen

//  http://www.naturalprogramming.com/

//  2006-09-28  File created.
//  2006-10-02  Last modification.

//  This program is another version of DrawingDemoApplet.java.
//  In this version a separate DrawingDemoPanel class is declared, and
//  a DrawingDemoPanel object contains the drawings that appear on the
//  screen.

import java.awt.* ;
import javax.swing.* ;

class DrawingDemoPanel extends JPanel
{
   int applet_width, applet_height ;

   public DrawingDemoPanel( int given_applet_width,
                            int given_applet_height )
   {
      applet_width   =  given_applet_width ;
      applet_height  =  given_applet_height ;
   }

   public void paintComponent( Graphics graphics )
   {
      super.paintComponent( graphics ) ;

      graphics.drawString( "Applet area size is "  +  applet_width
                        +  " x "  +  applet_height, 20, 20 ) ;

      graphics.drawLine( 0, 100, 500, 100 ) ;
      graphics.drawLine( 0, 300, 500, 300 ) ;
      graphics.drawLine( applet_width / 2, 0,
                         applet_width / 2, applet_height ) ;

      graphics.fillRect( 20, 50, 100, 40 ) ;

      graphics.fillRect( 20, 200, 100, 80 ) ;
      graphics.drawRect( 10, 190, 120, 100 ) ;

      graphics.copyArea( 10, 190, 120, 100, 150, 0 ) ;

      graphics.fillArc(  20, 350, 100, 80,  45, 270 ) ;
      graphics.fillArc( 170, 350, 100, 80, 315,  90 ) ;

      graphics.fillRect(  350, 50, 100, 40 ) ;
      graphics.clearRect( 360, 60,  80, 20 ) ; 

      int[] polygon_coordinates_x  =  { 400, 450, 450, 400, 350, 350 } ;
      int[] polygon_coordinates_y  =  { 150, 180, 220, 250, 220, 180 } ;

      graphics.fillPolygon( polygon_coordinates_x,
                            polygon_coordinates_y, 6 ) ; 

      graphics.drawOval( 350, 350, 100, 80 ) ;
      graphics.drawRect( 350, 350, 100, 80 ) ;
      graphics.drawString( "X", 350, 350 ) ;
   }
}

public class DrawingDemoPanelApplet extends JApplet
{
   public void init()
   {
      getContentPane().add( new DrawingDemoPanel( getSize().width,
                                                  getSize().height ) ) ; 
   }
}