/*
 * $Id: Point2D.java,v 1.4 2003/08/22 23:02:40 dwd Exp $
 *
 * This software is provided by NOAA for full, free and open release.  It is
 * understood by the recipient/user that NOAA assumes no liability for any
 * errors contained in the code.  Although this software is released without
 * conditions or restrictions in its use, it is expected that appropriate
 * credit be given to its author and to the National Oceanic and Atmospheric
 * Administration should the software be included by the recipient as an
 * element in other product development.
 */

package  sgtplot.util;

import java.io.Serializable;

/**
 * Point2D will be part of java.java2d.
 *
 * @author Donald Denbo
 * @version $Revision: 1.4 $, $Date: 2003/08/22 23:02:40 $
 * @since sgtplot 1.0
 */
public abstract class Point2D implements Serializable, Cloneable {
  /**
   * Inner class for Point2D for type
   * double.
   * @since sgtplot 1.0
   */
  public static class Double extends Point2D {
    /** x coordinate */
    public double x;
    /** y coordinate */
    public double y;
    /**
     * Default constructor
     */
    public Double() {
    }
    public Double(double x,double y) {
      this.x = x;
      this.y = y;
    }
    /**
     * Test for equality.  Both x and y coordinates must be equal for
     * equality.
     */
    public boolean equals(Point2D.Double pt) {
      return (x == pt.x && y == pt.y) ;
    }
    /**
     * @since sgtplot 3.0
     */
    public boolean equals(Object pt) {
      if(pt instanceof Point2D.Double) {
        Point2D.Double pt2 = (Point2D.Double)pt;
        return (x == pt2.x) && (y == pt2.y);
      } else {
        return false;
      }
    }
    public String toString() {
      return new String("(" + x + ", " + y + ")");
    }
    /**
     * Make a copy of the Rectangle2D.
     * @since sgtplot 3.0
     */
    public Point2D copy() {
      try {
        return (Point2D)clone();
      } catch (CloneNotSupportedException e) {
        return null;
      }
    }
  }
  /**
   * Inner class for Point2D for type
   * float.
   * @since sgtplot 2.0
   */
  public static class Float extends Point2D {
    /** x coordinate */
    public float x;
    /** y coordinate */
    public float y;
    /**
     * Default constructor
     */
    public Float() {
    }
    public Float(float x,float y) {
      this.x = x;
      this.y = y;
    }
    /**
     * Test for equality.  Both x and y coordinates must be equal for
     * equality.
     */
    public boolean equals(Point2D.Float pt) {
      return (x == pt.x && y == pt.y) ;
    }
    /**
     * @since sgtplot 3.0
     */
    public boolean equals(Object pt) {
      if(pt instanceof Point2D.Float) {
        Point2D.Float pt2 = (Point2D.Float)pt;
        return (x == pt2.x) && (y == pt2.y);
      } else {
        return false;
      }
    }
    public String toString() {
      return new String("(" + x + ", " + y + ")");
    }
    /**
     * Make a copy of the Rectangle2D.
     * @since sgtplot 3.0
     */
    public Point2D copy() {
      try {
        return (Point2D)clone();
      } catch (CloneNotSupportedException e) {
        return null;
      }
    }
  }
  /**
   * This is an abstract class that cannot be instantiated directly.
   * Type-specific implementation subclasses are available for
   * instantiation and provide a number of formats for storing
   * the information necessary to satisfy the various accessor
   * methods below.
   *
   */
  protected Point2D() {
  }
}