/* BezierApplet.java
 *
 * Test the Bezier curve class.  See also BezierCurve.java.
 *
 * Bruce M. Bolden
 * April 30, 2001
 * http://www.cs.uidaho.edu/~bruceb/cs127/code/Bezier/
 */

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

public class BezierApplet 
       extends Applet 
       implements ActionListener
{
   static TextField tfDivisions = new TextField( "20 " );

   static BezierCurve bezierCurve;


   public void init() 
   {
         //  Division control panel
      Panel divPanel = new Panel();

      setLayout( new BorderLayout() );
      divPanel.add( new Label("Divisions:") );
      divPanel.add( tfDivisions );
      tfDivisions.addActionListener( this );
      add( "North", divPanel );

      Dimension d = this.getSize();
      bezierCurve = new BezierCurve( getBackground(), d.height, d.width );
   }


   public void paint( Graphics g )
   {
      bezierCurve.drawBezierCurve( g );
   }

   public void actionPerformed( ActionEvent event )
   {
          //  Get/update new curve parameters
      int nDivs = Integer.parseInt( tfDivisions.getText().trim() );
      bezierCurve.setDivisions( nDivs );

      repaint();
   }
}