JTree properties

Question

Hi all!
I guess this is a simple problem for most of you guys... How to change color of the lines in JTree that connect opened nodes? I guess there must be some property like "JTree.lineColor" because this color changes with changing LookAndFeel. I have read the tutarial and it only says that these properties are in the file <java_install_dir>/lib/swing.properties. But I don't have this file.
If I find the name of this property, should I set it with UIManager.put(property_name, Color.whatever)?
Another question:
is there any way to remove those handles on other nodes not only the root node (with setShowRootHandles)?
Thanx
Petar

Answer 1

For the line use, before creating the tree:
UIManager.put("Tree.line", Color.red); for example.
If you want to see all the properties, use this code :
import java.util.*;
import javax.swing.*;
public class UIProperties {
     public static String windowsUI = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
     public static void main(String[] args) {
          try {
          //     UIManager.setLookAndFeel(windowsUI);
               UIDefaults def = UIManager.getDefaults();
               for (Enumeration e = def.keys(); e.hasMoreElements();) {
                    String key = (String)e.nextElement();
                    System.out.println(key+ "     :     "+def.get(key));
          catch (Exception ex) {
               System.out.println(ex);
}I hope this helps,
Denis