Advanced Swing Containers - The Definitive Guide to Java Swing - page 395

Table 11-5. JTabbedPane UIResource Elements (Continued)

Property String Object Type

TabbedPane.unselectedTabBackground Color

TabbedPane.unselectedTabForeground Color

TabbedPane.unselectedTabHighlight Color

TabbedPane.unselectedTabShadow Color

TabbedPaneUI String

JScrollPane Class
Swing's JScrollPane container provides for the display of a large component within a smaller
display area, with scrolling support (if necessary) to get to the parts currently invisible. Figure 11-14
shows one such implementation, in which the large component is a JLabel with an ImageIcon
on it.

Figure 11-14. JScrollPane example

Identifying the component to be scrolled can be done in one of two ways. Instead of adding
the component to be scrolled directly to the JScrollPane container, you add the component to
another component, a JViewport , already contained within the scroll pane. Alternatively, you
can identify the component at construction time, by passing it into the constructor.

Icon icon = new ImageIcon("dog.jpg");
JLabel label = new JLabel(icon);
JScrollPane jScrollPane = new JScrollPane();
jScrollPane.setViewportView(label);
// or
JScrollPane jScrollPane2 = new JScrollPane(label);

Once you've added the component into the JScrollPane , users can use the scrollbars to
see the parts of the large component that aren't visible within the inner area of the JScrollPane .
In addition to giving you the means to set the scrollable component for the JScrollPane , a
display policy determines if and when scrollbars are shown around the JScrollPane . Swing's
JScrollPane maintains separate display policies for the horizontal and vertical scrollbars.