diva.canvas.interactor

Class PathGeometry

java.lang.Object

diva.canvas.interactor.PathGeometry

All Implemented Interfaces:

Geometry

public class PathGeometry
extends Object
implements Geometry

PathGeometry represents a path. Actually, any shape. Its defining shape is any instance of Shape, although generally this class is most useful for shapes that are instances of GeneralPath, since any modification to any of the will cause the shape returned by getShape() to be changed into an instance of GeneralPath.

PathGeometry provides sites for the vertices of the path, and for the control point for those segments that are quadratic or cubic curves.

Version:

$Revision: 1.15 $

Author:

John Reekie, Nick Zamora

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	PathGeometry.CloseSegment CloseSegment is a special type of Vertex, that closes a sub-path.
class	PathGeometry.Vertex Vertex is the site that represents vertexes of the path.

Constructor Summary

Constructors

Constructor and Description
PathGeometry(Figure figure, Shape shape) Create a new geometry object on the given figure and with the given initial shape.

Method Summary

Modifier and Type	Method and Description
Figure	getFigure() Get the figure to which this geometry object is attached.
Shape	getShape() Get the shape that defines this geometry object.
Site	getVertex(int number) Get the site on the given vertex.
int	getVertexCount() Get the number of vertices of this shape.
void	setShape(Shape shape) Set the shape that defines this geometry object.
void	translate(double x, double y) Translate the geometry object
Iterator	vertices() Return an iteration over the vertices in this geometry object.

Methods inherited from class java.lang.Object

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

Constructor Detail

PathGeometry

public PathGeometry(Figure figure,
                    Shape shape)

Create a new geometry object on the given figure and with the given initial shape.

Method Detail

getFigure

public Figure getFigure()

Get the figure to which this geometry object is attached. Returns null if there isn't one.

Specified by:

getFigure in interface Geometry

getShape

public Shape getShape()

Get the shape that defines this geometry object. If any of the sites have been translated since this shape was set, a new shape will be produced and returned.

Specified by:

getShape in interface Geometry

getVertex

public Site getVertex(int number)

Get the site on the given vertex.

getVertexCount

public int getVertexCount()

Get the number of vertices of this shape. This number includes all "Close" segments.

setShape

public void setShape(Shape shape)

Set the shape that defines this geometry object.

Specified by:

setShape in interface Geometry

translate

public void translate(double x,
                      double y)

Translate the geometry object

Specified by:

translate in interface Geometry

vertices

public Iterator vertices()

Return an iteration over the vertices in this geometry object.