outline decorator

[Noel Grandin]

Hi

I'm trying to implement a Decorator that will add a red border around
a component. I've got the following, which seems to work sometimes,
but not always.

What am I doing wrong?

Thanks, Noel.

        /** draws a red border around a component */
        private final class OutlineDecorator implements Decorator {
                private Component component = null;
                private Graphics2D graphics = null;

                public Graphics2D prepare(Component component, Graphics2D 
graphics) {
                        this.component = component;
                        this.graphics = graphics;

                        return graphics;
                }

                public void update() {
                        graphics.setColor(Color.RED);
                        graphics.drawRect(-1, -1, component.getWidth() + 1, 
component
                                        .getHeight() + 1);
                }

                public Bounds getBounds(Component component) {
                        return new Bounds(-1, -1, component.getWidth() + 1, 
component
                                        .getHeight() + 1);
                }

                public AffineTransform getTransform(Component component) {
                        return new AffineTransform();
                }
        }