public SplitPaneDemo() {
// Create the list of images and put it in a scroll pane.
list = new JList(imageNames);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.setSelectedIndex(0);
list.addListSelectionListener(this);
JScrollPane listScrollPane = new JScrollPane(list);
picture = new JLabel();
picture.setFont(picture.getFont().deriveFont(Font.ITALIC));
picture.setHorizontalAlignment(JLabel.CENTER);
JScrollPane pictureScrollPane = new JScrollPane(picture);
// Create a split pane with the two scroll panes in it.
splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, listScrollPane, pictureScrollPane);
splitPane.setOneTouchExpandable(true);
splitPane.setDividerLocation(150);
// Provide minimum sizes for the two components in the split pane.
Dimension minimumSize = new Dimension(100, 50);
listScrollPane.setMinimumSize(minimumSize);
pictureScrollPane.setMinimumSize(minimumSize);
// Provide a preferred size for the split pane.
splitPane.setPreferredSize(new Dimension(400, 200));
updateLabel(imageNames[list.getSelectedIndex()]);
}
public FigurePanel() {
setLayout(new BorderLayout());
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
panel.add(fs);
panel.add(bp);
JSplitPane sp = new JSplitPane(JSplitPane.VERTICAL_SPLIT, panel, cp);
sp.setPreferredSize(new Dimension(500, 400));
sp.setDividerLocation(250);
add(BorderLayout.CENTER, sp);
}