FULL PRODUCT VERSION :
Mustang b91

A DESCRIPTION OF THE PROBLEM :
JTree is invisible with combination of Right-to-Left component orientation and GTK LaF.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run. You don't see the JTree. Notice that with commented out "scroll.applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);" it works ok. It works ok as well with the uncommented "ComponentOrientation.RIGHT_TO_LEFT" code but with another LaF, say Motif.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JTree displays.
ACTUAL -
JTree does not display.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

import java.awt.*;
import javax.swing.*;
import javax.swing.tree.*;
import java.lang.reflect.InvocationTargetException;

public class GTKTreeRTLTest {
    
    private static JFrame mainFrame;
    
    public static void main(String[] args) throws InterruptedException, InvocationTargetException {
        SwingUtilities.invokeAndWait(new Runnable(){
            
            public void run() {
                mainFrame = new JFrame("GTKTreeRTLTest");
                mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                try {
                    // ???
                    UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
// UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
                    
                    SwingUtilities.updateComponentTreeUI(mainFrame);
                } catch (Exception e) {
                    throw new RuntimeException("Test failed: ", e);
                }
                
                JTree tree = new JTree(getDefaultTreeModel());
                tree.setShowsRootHandles(true);
                tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
                JPanel mainPanel = new JPanel(new BorderLayout());
                JScrollPane scroll = new JScrollPane(tree);
                mainPanel.add(scroll, BorderLayout.CENTER);
                mainFrame.setContentPane(mainPanel);
                
                // ???
                scroll.applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
                
                mainFrame.pack();
                mainFrame.setLocationRelativeTo(null);
                mainFrame.setVisible(true);
            }
        
        });
        
        mainFrame.validate();
    }
    
    private static DefaultTreeModel getDefaultTreeModel() {
        DefaultMutableTreeNode root = new DefaultMutableTreeNode("JTree");
        DefaultMutableTreeNode parent;

        parent = new DefaultMutableTreeNode("colors");
        root.add(parent);
        parent.add(new DefaultMutableTreeNode("blue"));
        parent.add(new DefaultMutableTreeNode("violet"));
        parent.add(new DefaultMutableTreeNode("red"));
        parent.add(new DefaultMutableTreeNode("yellow"));

        parent = new DefaultMutableTreeNode("sports");
        root.add(parent);
        parent.add(new DefaultMutableTreeNode("basketball"));
        parent.add(new DefaultMutableTreeNode("soccer"));
        parent.add(new DefaultMutableTreeNode("football"));

        DefaultMutableTreeNode nparent = new DefaultMutableTreeNode("hockey");
        parent.add(nparent);
        nparent.add(new DefaultMutableTreeNode("ice hockey"));
        nparent.add(new DefaultMutableTreeNode("roller hockey"));
        nparent.add(new DefaultMutableTreeNode("floor hockey"));
        nparent.add(new DefaultMutableTreeNode("road hockey"));

        return new DefaultTreeModel(root);
    }
    
}

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