Jtree Node with JComboBox don't work properly in Windows Vista!

Question

Hi people!
i create a Jtree component and create a special node, that is a <strong>JPanel with a JLabel + JCombobox</strong>!
Only the direct childs of root have this special node.
A can put this work properly in Windows XP, like the picture:
[XP Image|http://feupload.fe.up.pt/get/jcgd0rY5p9PoFPG]
And in Windows Vista the same code appear like this:
[Vista Image|http://feupload.fe.up.pt/get/Ylajl6hlCUFc0xe]
<strong>Hence, in Vista something append behind the JLabel and show something wyerd!</strong>
I can't understant this and if someone can help i appreciate!
The TreeNodeRender class is :
public class MetaDataTreeNodeRenderer implements TreeCellRenderer {
    private JLabel tip = new JLabel();
    private JPanel panel = new JPanel();   
    private JComboBox dataMartsRenderer = new JComboBox();
    private DefaultTreeCellRenderer nonEditableNodeRenderer = new DefaultTreeCellRenderer();
    private HashMap<String, String> valueSaver = null;
    public MetaDataTreeNodeRenderer(Component treeContainer, HashMap<String, String> valueSaver, String[] valuesComboBox) {
        this.valueSaver = valueSaver;
        int width = (int)treeContainer.getPreferredSize().getWidth();
        panel.setLayout(new GridBagLayout());
        java.awt.GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints();
        panel.setMaximumSize(new Dimension(width, 15));
        panel.setBackground(new Color(255, 255, 255, 0));
        dataMartsRenderer = new JComboBox(valuesComboBox);
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        panel.add(tip, gridBagConstraints);
        gridBagConstraints.gridx = 1;
        panel.add(dataMartsRenderer, gridBagConstraints);
        tip.setLabelFor(dataMartsRenderer);       
    public JComboBox getEditableNodeRenderer() {
        return dataMartsRenderer;
    public String getTipText(){
        return this.tip.getText();
    public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected,
            boolean expanded, boolean leaf, int row, boolean hasFocus) {
        Component returnValue = null;
        DefaultMutableTreeNode currentNode = (DefaultMutableTreeNode)value;
        DefaultMutableTreeNode currentNodeFather = (DefaultMutableTreeNode)currentNode.getParent();
        if(currentNodeFather != null && currentNodeFather.isRoot()){//se o meu pai &eacute; a raiz, ent&atilde;o eu sou um datamart
                                                                    //se sou um datamart, ent&atilde;o sou edit&aacute;vel.
            String dataMart = (String)currentNode.getUserObject();
            String dataMartValue = this.valueSaver.get(dataMart);
            tip.setText(dataMart);
            if(dataMartValue != null) {
                dataMartsRenderer.setSelectedItem(dataMartValue);
            returnValue = panel;
        }else{//sou um n&oacute; n&atilde;o edit&aacute;vel.
             returnValue = nonEditableNodeRenderer.getTreeCellRendererComponent(tree,
                     value, selected, expanded, leaf, row, hasFocus);
        return returnValue;
}The TreeNodeEditor class is :
public class MetaDataTreeNodeEditor extends AbstractCellEditor implements TreeCellEditor {
    MetaDataTreeNodeRenderer renderer = null;
    JTree tree;
    //Where i save all JComboBox values ( name of label, selected item in combobox), for all combbox
    HashMap<String, String> valueSaver = null;
    public MetaDataTreeNodeEditor(JTree tree, Component treeContainer, HashMap<String, String> valueSaver, String[] valuesComboBox) {
        this.tree = tree;
        this.renderer = new MetaDataTreeNodeRenderer(treeContainer, valueSaver, valuesComboBox);
        this.valueSaver = valueSaver;
    public Object getCellEditorValue() {
        JComboBox comboBox = renderer.getEditableNodeRenderer();
        String dataMart = renderer.getTipText();
        this.valueSaver.put(dataMart, (String)comboBox.getSelectedItem() );
        return dataMart;
    @Override
    public boolean isCellEditable(EventObject event) {
        boolean returnValue = false;
        if (event instanceof MouseEvent) {
            MouseEvent mouseEvent = (MouseEvent) event;
            if (mouseEvent.getClickCount() > 1) {
                TreePath path = tree.getPathForLocation(mouseEvent.getX(), mouseEvent.getY());
                if (path != null) {
                    Object node = path.getLastPathComponent();
                    if ((node != null) && (node instanceof DefaultMutableTreeNode)) {
                        DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) node;
                        if ( treeNode.getParent() != null && ((DefaultMutableTreeNode) treeNode.getParent()).isRoot()) {
                            returnValue = true;
                        } else {
                            returnValue = false;
        return returnValue;
    public Component getTreeCellEditorComponent(final JTree tree, final Object value, boolean selected,
            boolean expanded, boolean leaf, int row) {
        Component editor = renderer.getTreeCellRendererComponent(tree, value, true, expanded, leaf,
                row, true);
        ActionListener actionListener = new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                if (stopCellEditing()) {
                    fireEditingStopped();
        if (editor instanceof JPanel) {
            Object component = ((JPanel) editor).getComponent(1);
            JComboBox field = (JComboBox) component;
            field.addActionListener(actionListener);
        return editor;
    }

Answer 1

Hi people!
i create a Jtree component and create a special node, that is a <strong>JPanel with a JLabel + JCombobox</strong>!
Only the direct childs of root have this special node.
A can put this work properly in Windows XP, like the picture:
[XP Image|http://feupload.fe.up.pt/get/jcgd0rY5p9PoFPG]
And in Windows Vista the same code appear like this:
[Vista Image|http://feupload.fe.up.pt/get/Ylajl6hlCUFc0xe]
<strong>Hence, in Vista something append behind the JLabel and show something wyerd!</strong>
I can't understant this and if someone can help i appreciate!
The TreeNodeRender class is :
public class MetaDataTreeNodeRenderer implements TreeCellRenderer {
    private JLabel tip = new JLabel();
    private JPanel panel = new JPanel();   
    private JComboBox dataMartsRenderer = new JComboBox();
    private DefaultTreeCellRenderer nonEditableNodeRenderer = new DefaultTreeCellRenderer();
    private HashMap<String, String> valueSaver = null;
    public MetaDataTreeNodeRenderer(Component treeContainer, HashMap<String, String> valueSaver, String[] valuesComboBox) {
        this.valueSaver = valueSaver;
        int width = (int)treeContainer.getPreferredSize().getWidth();
        panel.setLayout(new GridBagLayout());
        java.awt.GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints();
        panel.setMaximumSize(new Dimension(width, 15));
        panel.setBackground(new Color(255, 255, 255, 0));
        dataMartsRenderer = new JComboBox(valuesComboBox);
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        panel.add(tip, gridBagConstraints);
        gridBagConstraints.gridx = 1;
        panel.add(dataMartsRenderer, gridBagConstraints);
        tip.setLabelFor(dataMartsRenderer);       
    public JComboBox getEditableNodeRenderer() {
        return dataMartsRenderer;
    public String getTipText(){
        return this.tip.getText();
    public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected,
            boolean expanded, boolean leaf, int row, boolean hasFocus) {
        Component returnValue = null;
        DefaultMutableTreeNode currentNode = (DefaultMutableTreeNode)value;
        DefaultMutableTreeNode currentNodeFather = (DefaultMutableTreeNode)currentNode.getParent();
        if(currentNodeFather != null && currentNodeFather.isRoot()){//se o meu pai &eacute; a raiz, ent&atilde;o eu sou um datamart
                                                                    //se sou um datamart, ent&atilde;o sou edit&aacute;vel.
            String dataMart = (String)currentNode.getUserObject();
            String dataMartValue = this.valueSaver.get(dataMart);
            tip.setText(dataMart);
            if(dataMartValue != null) {
                dataMartsRenderer.setSelectedItem(dataMartValue);
            returnValue = panel;
        }else{//sou um n&oacute; n&atilde;o edit&aacute;vel.
             returnValue = nonEditableNodeRenderer.getTreeCellRendererComponent(tree,
                     value, selected, expanded, leaf, row, hasFocus);
        return returnValue;
}The TreeNodeEditor class is :
public class MetaDataTreeNodeEditor extends AbstractCellEditor implements TreeCellEditor {
    MetaDataTreeNodeRenderer renderer = null;
    JTree tree;
    //Where i save all JComboBox values ( name of label, selected item in combobox), for all combbox
    HashMap<String, String> valueSaver = null;
    public MetaDataTreeNodeEditor(JTree tree, Component treeContainer, HashMap<String, String> valueSaver, String[] valuesComboBox) {
        this.tree = tree;
        this.renderer = new MetaDataTreeNodeRenderer(treeContainer, valueSaver, valuesComboBox);
        this.valueSaver = valueSaver;
    public Object getCellEditorValue() {
        JComboBox comboBox = renderer.getEditableNodeRenderer();
        String dataMart = renderer.getTipText();
        this.valueSaver.put(dataMart, (String)comboBox.getSelectedItem() );
        return dataMart;
    @Override
    public boolean isCellEditable(EventObject event) {
        boolean returnValue = false;
        if (event instanceof MouseEvent) {
            MouseEvent mouseEvent = (MouseEvent) event;
            if (mouseEvent.getClickCount() > 1) {
                TreePath path = tree.getPathForLocation(mouseEvent.getX(), mouseEvent.getY());
                if (path != null) {
                    Object node = path.getLastPathComponent();
                    if ((node != null) && (node instanceof DefaultMutableTreeNode)) {
                        DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) node;
                        if ( treeNode.getParent() != null && ((DefaultMutableTreeNode) treeNode.getParent()).isRoot()) {
                            returnValue = true;
                        } else {
                            returnValue = false;
        return returnValue;
    public Component getTreeCellEditorComponent(final JTree tree, final Object value, boolean selected,
            boolean expanded, boolean leaf, int row) {
        Component editor = renderer.getTreeCellRendererComponent(tree, value, true, expanded, leaf,
                row, true);
        ActionListener actionListener = new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                if (stopCellEditing()) {
                    fireEditingStopped();
        if (editor instanceof JPanel) {
            Object component = ((JPanel) editor).getComponent(1);
            JComboBox field = (JComboBox) component;
            field.addActionListener(actionListener);
        return editor;
    }