diva.canvas.interactor

Class PathGeometry.Vertex

java.lang.Object

diva.canvas.AbstractSite

diva.canvas.interactor.PathGeometry.Vertex

All Implemented Interfaces:

Site

Direct Known Subclasses:

PathGeometry.CloseSegment

Enclosing class:

PathGeometry

public class PathGeometry.Vertex
extends AbstractSite

Vertex is the site that represents vertexes of the path. Any object that has a reference to a Vertex is obliged to lose it if the Vertex's id becomes larger than the number of vertexes in the path. (If they don't, then accessing the site may result in a out-of-bounds exception.) Clients must also be aware that the type of the vertex may also change if the shape changes, so they should use the getType() method to get the type of the vertex if necessary.

Field Summary

Fields inherited from class diva.canvas.AbstractSite

_hasNormal, _normal

Constructor Summary

Constructors

Constructor and Description
Vertex(int id) Create a new site with the given ID
Vertex(int id, int control_point) Create a new site with the given ID and control point

Method Summary

Modifier and Type	Method and Description
int	getControlPoint() Get the control point of this site.
Figure	getFigure() Get the figure to which this site is attached, or null if it is not attached to a figure.
int	getID() Get the ID of this site.
double	getX() Get the x-coordinate of the site, in the local coordinates of the containing pane.
double	getY() Get the y-coordinate of the site, in the local coordinates of the containing pane.
void	setPoint(java.awt.geom.Point2D point) Set the point location of the site
java.lang.String	toString() Describe this site
void	translate(double x, double y) Translate the site by the indicated distance.

Methods inherited from class diva.canvas.AbstractSite

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Vertex

Vertex(int id)

Create a new site with the given ID

Vertex

Vertex(int id,
       int control_point)

Create a new site with the given ID and control point

Method Detail

getID

public int getID()

Get the ID of this site.

Specified by:

getID in interface Site

Specified by:

getID in class AbstractSite

Returns:

The unique identifier.

getControlPoint

public int getControlPoint()

Get the control point of this site.

getFigure

public Figure getFigure()

Get the figure to which this site is attached, or null if it is not attached to a figure.

Specified by:

getFigure in interface Site

Specified by:

getFigure in class AbstractSite

Returns:

The figure.

getX

public double getX()

Get the x-coordinate of the site, in the local coordinates of the containing pane.

Specified by:

getX in interface Site

Specified by:

getX in class AbstractSite

Returns:

The x-coordinate of the site.

getY

public double getY()

Get the y-coordinate of the site, in the local coordinates of the containing pane.

Specified by:

getY in interface Site

Specified by:

getY in class AbstractSite

Returns:

The y-coordinate of the site.

setPoint

public void setPoint(java.awt.geom.Point2D point)

Set the point location of the site

translate

public void translate(double x,
                      double y)

Translate the site by the indicated distance. If this vertex is one end of a cubic curve, move the adjacent control point or control points the same distance. If this site is one end of a quadratic curve, move the adjacent control points half of the distance.

Specified by:

translate in interface Site

Overrides:

translate in class AbstractSite

Parameters:

x - The x distance to be translated.

y - The y distance to be translated.

toString

public java.lang.String toString()

Describe this site

Overrides:

toString in class java.lang.Object