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;
}