Java Foundation Classes in a Nutshell

CHAPTER 24

Thejavax.swing.border Package

The javax.swing .border package is a simple package that defines the Border inter face,

which specifies how to draw a border around an arbitrary Swing component. The

various classes in this package implement commonly used border styles. Applica-

tions can easily define custom border styles by creating custom implementations of

Border. Figur e 24-1 shows the class hierarchy of this package.

extends implements

KEY

CLASS INTERFACEABSTRACT CLASS

AbstractBorder BevelBorder

javax.swing.border

java.lang

Object

java.io

CompoundBorder

EmptyBorder

EtchedBorder

LineBorder

TitleBorder

MatteBorder

Border

SoftBevelBorder

Serializable

Figur e 24−1: The javax.swing.bor der package

AbstractBorder Ja va 1.2

javax.swing .border serializable

This abstract class implements a zero-width, nonopaque border. AbstractBorder imple-

ments the Border inter face. To create a custom border type, subclass AbstractBorder,reim-

plementing at least the getBorderInsets() and paintBorder() methods. getInteriorRectangle() in

javax.swing.

border

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its static and nonstatic versions is a convenience method that retur ns a rectangle that

repr esents the region of the component inside the border.

AbstractBorder pr ovides a two-argument version of getBorderInsets(),inaddition to the one-

argument ...