package horstmann.ch04_icon3;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;

import javax.swing.Icon;

/**
   An icon that has the shape of a car.
 */
public class CarIcon implements Icon
{
	/**
      Constructs a car of a given width.
      @param aWidth the width of the car
	 */
	public CarIcon(int aWidth)
	{
		width = aWidth;
	}

	public int getIconWidth()
	{
		return width;
	}

	public int getIconHeight()
	{
		return width / 2;
	}

	public void paintIcon(Component c, Graphics g, int x, int y)
	{
		Graphics2D g2 = (Graphics2D) g;
		Rectangle2D.Double body
		= new Rectangle2D.Double(x, y + width / 6,
				width - 1, width / 6);
		Ellipse2D.Double frontTire
		= new Ellipse2D.Double(x + width / 6, y + width / 3,
				width / 6, width / 6);
		Ellipse2D.Double rearTire
		= new Ellipse2D.Double(x + width * 2 / 3, y + width / 3,
				width / 6, width / 6);

		// The bottom of the front windshield
		Point2D.Double r1
		= new Point2D.Double(x + width / 6, y + width / 6);
		// The front of the roof
		Point2D.Double r2
		= new Point2D.Double(x + width / 3, y);
		// The rear of the roof
		Point2D.Double r3
		= new Point2D.Double(x + width * 2 / 3, y);
		// The bottom of the rear windshield
		Point2D.Double r4
		= new Point2D.Double(x + width * 5 / 6, y + width / 6);

		Line2D.Double frontWindshield
		= new Line2D.Double(r1, r2);
		Line2D.Double roofTop
		= new Line2D.Double(r2, r3);
		Line2D.Double rearWindshield
		= new Line2D.Double(r3, r4);

		g2.fill(frontTire);
		g2.fill(rearTire);
		g2.setColor(Color.red);
		g2.fill(body);
		g2.draw(frontWindshield);
		g2.draw(roofTop);
		g2.draw(rearWindshield);
	}

	private int width;
}