package horstmann.ch07_carbean;
import java.awt.Dimension;
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.JComponent;

/**
   A component that draws a car shape.
 */
@SuppressWarnings("serial")
public class CarBean extends JComponent
{
	/**
      Constructs a default car bean.
	 */
	public CarBean()
	{
		x = 0;
		y = 0;
		width = DEFAULT_CAR_WIDTH;
		height = DEFAULT_CAR_HEIGHT;
	}

	/**
      Sets the x property.
      @param newValue the new x position
	 */
	public void setX(int newValue)
	{
		x = newValue;
		repaint();
	}

	/**
      Gets the x property.
      @return the x position
	 */
	public int getX()
	{
		return x;
	}

	/**
      Sets the y property.
      @param newValue the new y position
	 */
	public void setY(int newValue)
	{
		y = newValue;
		repaint();
	}

	/**
      Gets the y property.
      @return the y position
	 */
	public int getY()
	{
		return y;
	}

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

		// The bottom of the front windshield
		Point2D.Double r1
		= new Point2D.Double(x + width / 6, y + height / 3);
		// 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 + height / 3);

		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.draw(body);
		g2.draw(frontTire);
		g2.draw(rearTire);
		g2.draw(frontWindshield);
		g2.draw(roofTop);
		g2.draw(rearWindshield);
	}

	public Dimension getPreferredSize()
	{
		return new Dimension(DEFAULT_PANEL_WIDTH,
				DEFAULT_PANEL_HEIGHT);
	}

	private int x;
	private int y;
	private int width;
	private int height;

	private static final int DEFAULT_CAR_WIDTH = 60;
	private static final int DEFAULT_CAR_HEIGHT = 30;
	private static final int DEFAULT_PANEL_WIDTH = 160;
	private static final int DEFAULT_PANEL_HEIGHT = 130;
}