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package org.postgresql.geometric;
import java.awt.Point;
import java.io.*;
import java.sql.*;
import org.postgresql.util.*;
/**
* This implements a version of java.awt.Point, except it uses double
* to represent the coordinates.
*
* <p>It maps to the point datatype in org.postgresql.
*/
public class PGpoint extends PGobject implements Serializable,Cloneable
{
/**
* The X coordinate of the point
*/
public double x;
/**
* The Y coordinate of the point
*/
public double y;
/**
* @param x coordinate
* @param y coordinate
*/
public PGpoint(double x,double y)
{
this();
this.x = x;
this.y = y;
}
/**
* This is called mainly from the other geometric types, when a
* point is imbeded within their definition.
*
* @param value Definition of this point in PostgreSQL's syntax
*/
public PGpoint(String value) throws SQLException
{
this();
setValue(value);
}
/**
* Required by the driver
*/
public PGpoint()
{
setType("point");
}
/**
* @param s Definition of this point in PostgreSQL's syntax
* @exception SQLException on conversion failure
*/
public void setValue(String s) throws SQLException
{
PGtokenizer t = new PGtokenizer(PGtokenizer.removePara(s),',');
try {
x = Double.valueOf(t.getToken(0)).doubleValue();
y = Double.valueOf(t.getToken(1)).doubleValue();
} catch(NumberFormatException e) {
throw new PSQLException("postgresql.geo.point",e.toString());
}
}
/**
* @param obj Object to compare with
* @return true if the two boxes are identical
*/
public boolean equals(Object obj)
{
if(obj instanceof PGpoint) {
PGpoint p = (PGpoint)obj;
return x == p.x && y == p.y;
}
return false;
}
/**
* This must be overidden to allow the object to be cloned
*/
public Object clone()
{
return new PGpoint(x,y);
}
/**
* @return the PGpoint in the syntax expected by org.postgresql
*/
public String getValue()
{
return "("+x+","+y+")";
}
/**
* Translate the point with the supplied amount.
* @param x integer amount to add on the x axis
* @param y integer amount to add on the y axis
*/
public void translate(int x,int y)
{
translate((double)x,(double)y);
}
/**
* Translate the point with the supplied amount.
* @param x double amount to add on the x axis
* @param y double amount to add on the y axis
*/
public void translate(double x,double y)
{
this.x += x;
this.y += y;
}
/**
* Moves the point to the supplied coordinates.
* @param x integer coordinate
* @param y integer coordinate
*/
public void move(int x,int y)
{
setLocation(x,y);
}
/**
* Moves the point to the supplied coordinates.
* @param x double coordinate
* @param y double coordinate
*/
public void move(double x,double y)
{
this.x = x;
this.y = y;
}
/**
* Moves the point to the supplied coordinates.
* refer to java.awt.Point for description of this
* @param x integer coordinate
* @param y integer coordinate
* @see java.awt.Point
*/
public void setLocation(int x,int y)
{
move((double)x,(double)y);
}
/**
* Moves the point to the supplied java.awt.Point
* refer to java.awt.Point for description of this
* @param p Point to move to
* @see java.awt.Point
*/
public void setLocation(Point p)
{
setLocation(p.x,p.y);
}
}
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