import java.awt.*;

public class ImageButton extends Canvas {
	private Image image;
	private String command;
	private boolean selected = false;
	private Dimension size;
	public ImageButton(Image img, String command) {
		super();
		this.image = img;
		this.command = command;
		if (image == null) {
			size = new Dimension(0, 0);
		} else {
			size = new Dimension(image.getWidth(this), image.getHeight(this));
		}
	}
	public boolean handleEvent(Event e) {
		if (e.id == Event.MOUSE_UP) {
			if (selected) {
				e.id = Event.ACTION_EVENT;
				e.arg = command;
			}
		}
		if (e.id == Event.MOUSE_ENTER) {
			selected = true;
			repaint();
			return true;
		}
		if (e.id == Event.MOUSE_EXIT) {
			selected = false;
			repaint();
			return true;
		}
		return super.handleEvent(e);
	}
	public Dimension minimumSize() {
		return size;
	}
	public void paint(Graphics g) {
		g.drawImage(image, 0, 0, this);
		if (selected) {
			g.setColor(Color.yellow);
			g.drawRect(0, 0, image.getWidth(this)-1, image.getHeight(this)-1);
		}
	}
	public Dimension preferredSize() {
		return minimumSize();
	}
	public void update(Graphics g) {
		paint(g);
	}
}