import javax.swing.Icon; import java.awt.Color; import java.awt.Component; import java.awt.Graphics; /* * XMarksTheSpot is used by the ButtonDemo version used by the * answer to exercise 2 of the Performing Custom Painting lesson: * http://java.sun.com/docs/books/tutorial/uiswing/QandE/questions-ch6.html */ public class SquareIcon implements Icon { private static final int SIZE = 10; public void paintIcon(Component c, Graphics g, int x, int y) { if (c.isEnabled()) { g.setColor(Color.RED); } else { g.setColor(Color.GRAY); } g.fillRect(x, y, SIZE, SIZE); } public int getIconWidth() { return SIZE; } public int getIconHeight() { return SIZE; } }