package com.croftsoft.apps.exemplar;

     import java.awt.*;
     import java.awt.event.ComponentAdapter;
     import java.awt.event.ComponentEvent;
     import javax.swing.JComponent;

     import com.croftsoft.core.animation.ComponentAnimator;
     import com.croftsoft.core.animation.animator.FrameRateAnimator;
     import com.croftsoft.core.lang.NullArgumentException;

     /*********************************************************************
     * Exemplar ComponentAnimator.
     *
     * @version
     *   $Date: 2006/06/22 13:46:22 $
     * @since
     *   2005-08-12
     * @author
     *   <a href="http://www.croftsoft.com/">David Wallace Croft</a>
     *********************************************************************/

     public final class  Animator
       implements ComponentAnimator
     //////////////////////////////////////////////////////////////////////
     //////////////////////////////////////////////////////////////////////
     {
    	 
     private final Config             config;
       
     private final Accessor           accessor;
     
     private final Rectangle          componentBounds;
     
     private final FrameRateAnimator  frameRateAnimator;
     
     //
     
     private String  text;
     
     private int     x, y;

     //////////////////////////////////////////////////////////////////////
     // constructor methods
     //////////////////////////////////////////////////////////////////////

     /*********************************************************************
     * Main constructor.
     *********************************************************************/
     public  Animator (
       final Config      config,
       final Accessor    accessor,
       final JComponent  jComponent )
     //////////////////////////////////////////////////////////////////////
     {
       NullArgumentException.checkArgs (
         this.config   = config,
         this.accessor = accessor,
         jComponent );
       
       componentBounds = new Rectangle ( );
       
       jComponent.setOpaque ( true );
       
       jComponent.setFont ( config.getFont ( ) );
         
       jComponent.setCursor ( config.getCursor ( ) );
       
       jComponent.requestFocus ( );
       
       jComponent.addComponentListener (
         new ComponentAdapter ( )
         {
           @Override
           public void  componentResized ( ComponentEvent  componentEvent )
           {
             update ( jComponent );
    	             
             jComponent.repaint ( );
           }
         } );
       
       frameRateAnimator = new FrameRateAnimator ( jComponent );
       
       update ( jComponent );       
     }
     
     //////////////////////////////////////////////////////////////////////
     // interface ComponentAnimator methods
     //////////////////////////////////////////////////////////////////////
     
     public void  paint (
       final JComponent  jComponent,
       final Graphics2D  graphics2D )
     //////////////////////////////////////////////////////////////////////
     {
       graphics2D.setColor ( config.getBackgroundColor ( ) );
       
       graphics2D.fill ( componentBounds );
       
       graphics2D.setColor ( config.getForegroundColor ( ) );
       
       graphics2D.drawString ( text, x, y );
       
       frameRateAnimator.paint ( jComponent, graphics2D );
     }
     
     public void  update ( final JComponent  jComponent )
     //////////////////////////////////////////////////////////////////////
     {
       jComponent.getBounds ( componentBounds );
         
       final int  offsetX = componentBounds.width  / 2;
         
       final int  offsetY = componentBounds.height / 2;
         
       final int  radius = Math.min ( offsetX, offsetY ) / 2;
    
       text = "Clicks:  " + accessor.getClickCount ( );
         
       x = offsetX + ( int ) Math.round (
         radius * Math.sin ( accessor.getPhase ( ) ) );
         
       y = offsetY + ( int ) Math.round (
         radius * Math.cos ( accessor.getPhase ( ) ) );
         
       frameRateAnimator.update ( jComponent );

       jComponent.paintImmediately ( componentBounds );
     }

     //////////////////////////////////////////////////////////////////////
     //////////////////////////////////////////////////////////////////////
     }