package bluej.utility;

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.LayoutManager;

import javax.swing.JPanel;




| A small extension to JPanel that uses a gradient fill for the background
|
| This should be passed in a call to setContentPane() for a JFrame to take effect --
| coupled with setting all panels inside the frame to non-opaque
| @author Neil Brown
|
public class GradientFillPanel
extends JPanel{    
   public GradientFillPanel(LayoutManager layout)
   {
      super(layout);     
      }

   
   @Override
   
   public void paintComponent(Graphics g)
   {
      super.paintComponent(g);
        
      if (g instanceof Graphics2D) {
         Graphics2D g2d = (Graphics2D)g;
            
         int w = getWidth();
         int h = getHeight();
            
           
         GradientPaint gp = new GradientPaint(
               
         w/4, 0, new Color(236, 236, 236),
               
         w*3/4, h, new Color(187, 182, 173));

         g2d.setPaint(gp);
         g2d.fillRect(0, 0, w, h);         
         }     
      } 
   }