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Java Swing, 2nd Edition
book

Java Swing, 2nd Edition

by Dave Wood, Robert Eckstein, Marc Loy, James Elliott, Brian Cole
November 2002
Intermediate to advanced content levelIntermediate to advanced
1278 pages
38h 26m
English
O'Reilly Media, Inc.
Content preview from Java Swing, 2nd Edition

Swing Borders

The following sections discuss Swing’s built-in border classes in detail.

The BevelBorder and SoftBevelBorder Classes

A bevel is another name for a slanted edge. The BevelBorder class can be used to simulate a raised or lowered edge with a slant surrounding the component, similar to the appearance of a button. The default bevel edge is two pixels wide on all sides. Figure 13-4 shows two bevel borders, the first raised and the second lowered.

Raised and lowered bevel borders

Figure 13-4. Raised and lowered bevel borders

Notice how the border creates the illusion of three dimensions. The bevel border simulates a light source above and to the left of the object (this light source location must be consistent for all 3D components in order to be effective). The border is then drawn with four colors: an outer and inner highlight color and an outer and inner shadow color. The highlight colors represent the two surfaces of the bevel facing toward the light while the shadow colors represent the surfaces facing away from the light. Figure 13-5 shows how a bevel border uses the highlight and shadow colors.

The four colors of a bevel border

Figure 13-5. The four colors of a bevel border

When the bevel is raised, the top and left sides of the border are highlighted, and the bottom and right sides of the border are shadowed. This presents the appearance ...

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Publisher Resources

ISBN: 0596004087Errata PageSupplemental Content