diva.canvas.connector
Class PerimeterSite

java.lang.Object
  diva.canvas.AbstractSite
      diva.canvas.connector.PerimeterSite

All Implemented Interfaces:

Site

public class PerimeterSite
extends AbstractSite

A site that locates itself on the perimeter of a figure. It implements the setNormal() method to change its position so that a line drawn through the site at the given normal will appear to originate from the center of the figure. Currently, perimeter sites are able to locate themselves on the perimeter of ellipses, rectangles, and arbitrary polygons. For any other shape, the site locates itself on the perimeter of the bounding box for the shape.

Version:

$Id: PerimeterSite.java 43786 2006-09-21 15:40:15Z cxh $

Author:

John Reekie, Steve Neuendorffer

Field Summary

private int	_id The id
private Figure	_parentFigure The parent figure

Fields inherited from class diva.canvas.AbstractSite

_hasNormal, _normal

Constructor Summary

PerimeterSite(Figure figure, int id)
Create a new site on the given figure with the given ID.

Method Summary

Figure	getFigure() Get the figure to which this site is attached.
int	getID() Get the ID of this site.
java.awt.geom.Point2D	getPoint(double normal) Get the point location of the site, in the enclosing transform context.
double	getX() Get the x-coordinate of the site.
double	getY() Get the y-coordinate of the site.

Methods inherited from class diva.canvas.AbstractSite

getNormal, getPoint, getPoint, getPoint, getTransformContext, hasNormal, isNormal, setNormal, translate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_id

private int _id

The id

_parentFigure

private Figure _parentFigure

The parent figure

Constructor Detail

PerimeterSite

public PerimeterSite(Figure figure,
                     int id)

Create a new site on the given figure with the given ID.

Method Detail

getFigure

public Figure getFigure()

Get the figure to which this site is attached.

Specified by:

getFigure in interface Site

Specified by:

getFigure in class AbstractSite

getID

public int getID()

Get the ID of this site.

Specified by:

getID in interface Site

Specified by:

getID in class AbstractSite

getPoint

public java.awt.geom.Point2D getPoint(double normal)

Get the point location of the site, in the enclosing transform context.

Specified by:

getPoint in interface Site

Overrides:

getPoint in class AbstractSite

getX

public double getX()

Get the x-coordinate of the site. The site is located in the center of the parent figure's bounding box.

Specified by:

getX in interface Site

Specified by:

getX in class AbstractSite

getY

public double getY()

Get the y-coordinate of the site. The site is located in the center of the parent figure's bounding box.

Specified by:

getY in interface Site

Specified by:

getY in class AbstractSite