missingicon.java

JAVA 工作指南 可以说是程序员必备的东西哦

package components;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.Icon;

/**
 * The "missing icon" is a white box with a black border and a red x.
 * It's used to display something when there are issues loading an
 * icon from an external location.
 *
 * @author Collin Fagan
 * @date 7/25/2007
 */
public class MissingIcon implements Icon{
    
    private int width = 32;
    private int height = 32;
    
    private BasicStroke stroke = new BasicStroke(4);
    
    public void paintIcon(Component c, Graphics g, int x, int y) {
        Graphics2D g2d = (Graphics2D) g.create();
        
        g2d.setColor(Color.WHITE);
        g2d.fillRect(x +1 ,y + 1,width -2 ,height -2);
        
        g2d.setColor(Color.BLACK);
        g2d.drawRect(x +1 ,y + 1,width -2 ,height -2);
        
        g2d.setColor(Color.RED);
        
        g2d.setStroke(stroke);
        g2d.drawLine(x +10, y + 10, x + width -10, y + height -10);
        g2d.drawLine(x +10, y + height -10, x + width -10, y + 10);
        
        g2d.dispose();
    }
    
    public int getIconWidth() {
        return width;
    }
    
    public int getIconHeight() {
        return height;
    }
    
}