import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;

public class TransparentLabel extends Component {

    protected String text;
    protected transient BufferedImage image;
    protected transient Graphics2D g2d;
    protected int width;
    protected int height;

    public void createLabel(String text, Color color){
        this.text = text;
        TextLayout textLayout = new TextLayout(text,
                             new Font("Serif", Font.BOLD, 12),
                             new FontRenderContext(null, false, false));
        Rectangle2D size = textLayout.getBounds();
        width = (int)size.getWidth() + 6;
        height = (int)size.getHeight() + 2;
        setSize(width, height);

        image = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
        g2d = (Graphics2D)image.getGraphics();

        g2d.setBackground(new Color(255, 255, 255, 0));
        g2d.clearRect(0, 0, width, height);
        g2d.setColor(color);
        g2d.drawString(text, 0, 12);
    }        

    public TransparentLabel(String text, Color color){
        createLabel(text, color);
    }

    public TransparentLabel(String text){
        createLabel(text, super.getForeground());
    }        

    public Dimension getPreferredSize(){
        return getMinimumSize();
    }   

    public Dimension getMinimumSize(){
        return new Dimension(width, height);
    }

    public void update(Graphics g){
        paint(g);
    }

    public void paint(Graphics g){
        g.drawImage(image, 0, 0, width, height, this);
    }
}