horstmann.ch08_umleditor

Class RectangularNode

java.lang.Object

horstmann.ch08_umleditor.RectangularNode

All Implemented Interfaces:

Node, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

ClassNode

public abstract class RectangularNode
extends java.lang.Object
implements Node

A node that has a rectangular shape.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private java.awt.geom.Rectangle2D	bounds

Constructor Summary

Constructors

Constructor and Description
RectangularNode()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone()
boolean	contains(java.awt.geom.Point2D p) Tests whether the node contains a point.
java.awt.geom.Rectangle2D	getBounds() Get the bounding rectangle of the shape of this node
java.awt.geom.Point2D	getConnectionPoint(java.awt.geom.Point2D aPoint) Get the best connection point to connect this node with another node.
private void	readObject(java.io.ObjectInputStream in)
private static void	readRectangularShape(java.io.ObjectInputStream in, java.awt.geom.RectangularShape s) A helper method to overcome the problem that the 2D shapes aren't serializable.
void	setBounds(java.awt.geom.Rectangle2D newBounds)
void	translate(double dx, double dy) Translates the node by a given amount.
private void	writeObject(java.io.ObjectOutputStream out)
private static void	writeRectangularShape(java.io.ObjectOutputStream out, java.awt.geom.RectangularShape s) A helper method to overcome the problem that the 2D shapes aren't serializable.

Methods inherited from class java.lang.Object

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

Methods inherited from interface horstmann.ch08_umleditor.Node

draw

Field Detail

bounds

private transient java.awt.geom.Rectangle2D bounds

Constructor Detail

RectangularNode

public RectangularNode()

Method Detail

clone

public java.lang.Object clone()

Specified by:

clone in interface Node

Overrides:

clone in class java.lang.Object

translate

public void translate(double dx,
                      double dy)

Description copied from interface: Node

Translates the node by a given amount.

Specified by:

translate in interface Node

Parameters:

dx - the amount to translate in the x-direction

dy - the amount to translate in the y-direction

contains

public boolean contains(java.awt.geom.Point2D p)

Description copied from interface: Node

Tests whether the node contains a point.

Specified by:

contains in interface Node

Parameters:

p - the point to test

Returns:

true if this node contains aPoint

getBounds

public java.awt.geom.Rectangle2D getBounds()

Description copied from interface: Node

Get the bounding rectangle of the shape of this node

Specified by:

getBounds in interface Node

Returns:

the bounding rectangle

setBounds

public void setBounds(java.awt.geom.Rectangle2D newBounds)

getConnectionPoint

public java.awt.geom.Point2D getConnectionPoint(java.awt.geom.Point2D aPoint)

Description copied from interface: Node

Get the best connection point to connect this node with another node. This should be a point on the boundary of the shape of this node.

Specified by:

getConnectionPoint in interface Node

Parameters:

aPoint - an exterior point that is to be joined with this node

Returns:

the recommended connection point

writeObject

private void writeObject(java.io.ObjectOutputStream out)
                  throws java.io.IOException

Throws:

java.io.IOException

writeRectangularShape

private static void writeRectangularShape(java.io.ObjectOutputStream out,
                                          java.awt.geom.RectangularShape s)
                                   throws java.io.IOException

A helper method to overcome the problem that the 2D shapes aren't serializable. It writes x, y, width and height to the stream.

Parameters:

out - the stream

s - the shape

Throws:

java.io.IOException

readObject

private void readObject(java.io.ObjectInputStream in)
                 throws java.io.IOException,
                        java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

readRectangularShape

private static void readRectangularShape(java.io.ObjectInputStream in,
                                         java.awt.geom.RectangularShape s)
                                  throws java.io.IOException

A helper method to overcome the problem that the 2D shapes aren't serializable. It reads x, y, width and height from the stream.

Parameters:

in - the stream

s - the shape whose frame is set from the stream values

Throws:

java.io.IOException