001package horstmann.ch08_graphed;
002import java.awt.Graphics2D;
003import java.awt.geom.Point2D;
004import java.awt.geom.Rectangle2D;
005
006/**
007   An inivisible node that is used in the toolbar to draw an
008   edge.
009 */
010@SuppressWarnings("serial")
011public class PointNode implements Node
012{
013        /**
014      Constructs a point node with coordinates (0, 0)
015         */
016        public PointNode()
017        {
018                point = new Point2D.Double();
019        }
020
021        public void draw(Graphics2D g2)
022        {
023        }
024
025        public void translate(double dx, double dy)
026        {
027                point.setLocation(point.getX() + dx,
028                                point.getY() + dy);
029        }
030
031        public boolean contains(Point2D p)
032        {
033                return false;
034        }
035
036        public Rectangle2D getBounds()
037        {
038                return new Rectangle2D.Double(point.getX(),
039                                point.getY(), 0, 0);
040        }
041
042        public Point2D getConnectionPoint(Point2D other)
043        {
044                return point;
045        }
046
047        public Object clone()
048        {
049                try
050                {
051                        return super.clone();
052                }
053                catch (CloneNotSupportedException exception)
054                {
055                        return null;
056                }
057        }
058
059        private Point2D point;
060}