horstmann.ch08_umleditor

Enum ArrowHead

java.lang.Object

java.lang.Enum<ArrowHead>

horstmann.ch08_umleditor.ArrowHead

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ArrowHead>

public enum ArrowHead
extends java.lang.Enum<ArrowHead>

This class defines arrowheads of various shapes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
BLACK_DIAMOND
BLACK_TRIANGLE
DIAMOND
NONE
TRIANGLE
V

Method Summary

Modifier and Type	Method and Description
void	draw(java.awt.Graphics2D g2, java.awt.geom.Point2D p, java.awt.geom.Point2D q) Draws the arrowhead.
java.awt.geom.GeneralPath	getPath(java.awt.geom.Point2D p, java.awt.geom.Point2D q) Gets the path of the arrowhead
static ArrowHead	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ArrowHead[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final ArrowHead NONE

TRIANGLE

public static final ArrowHead TRIANGLE

BLACK_TRIANGLE

public static final ArrowHead BLACK_TRIANGLE

V

public static final ArrowHead V

DIAMOND

public static final ArrowHead DIAMOND

BLACK_DIAMOND

public static final ArrowHead BLACK_DIAMOND

Method Detail

values

public static ArrowHead[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ArrowHead c : ArrowHead.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ArrowHead valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Point2D p,
                 java.awt.geom.Point2D q)

Draws the arrowhead.

Parameters:

g2 - the graphics context

p - a point on the axis of the arrow head

q - the end point of the arrow head

getPath

public java.awt.geom.GeneralPath getPath(java.awt.geom.Point2D p,
                                         java.awt.geom.Point2D q)

Gets the path of the arrowhead

Parameters:

p - a point on the axis of the arrow head

q - the end point of the arrow head

Returns:

the path