Trees - The Definitive Guide to Java Swing - page 648

Creating the Test Program
The test program in Listing 17-12 consists primarily of creating the CheckBoxNode elements.
In addition to creating the tree data, the tree must have the renderer and editor associated with
it and be made editable.
Listing 17-12. Using the Custom Node Editor
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
import java.util.Vector;
public class CheckBoxNodeTreeSample {
public static void main(String args[]) {
Runnable runner = new Runnable() {
public void run() {
JFrame frame = new JFrame("CheckBox Tree");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
CheckBoxNode accessibilityOptions[] = {
new CheckBoxNode("Move system caret with focus/selection changes", false),
new CheckBoxNode("Always expand alt text for images", true)
};
CheckBoxNode browsingOptions[] = {
new CheckBoxNode("Notify when downloads complete", true),
new CheckBoxNode("Disable script debugging", true),
new CheckBoxNode("Use AutoComplete", true),
new CheckBoxNode("Browse in a new process", false)
};
Vector<CheckBoxNode> accessVector =
new NamedVector<CheckBoxNode>("Accessibility", accessibilityOptions);
Vector<CheckBoxNode> browseVector =
new NamedVector<CheckBoxNode>("Browsing", browsingOptions);
Object rootNodes[] = {accessVector, browseVector};
Vector<Object> rootVector = new NamedVector<Object>("Root", rootNodes);
JTree tree = new JTree(rootVector);
CheckBoxNodeRenderer renderer = new CheckBoxNodeRenderer();
tree.setCellRenderer(renderer);
tree.setCellEditor(new CheckBoxNodeEditor(tree));
tree.setEditable(true);