Swing bug? cannot set width of JToggleButton

Question

Hello,
Just wondered if this was a Swing bug. See also
bug 6349010.
The width of the JToggleButton cannot be set.
However the height can be set.
The important line is line 135 - and also 140.
Try changing the width of the button - it does not change.
thanks,
Anil
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.util.EventObject;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.JToggleButton;
import javax.swing.JTree;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellEditor;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeSelectionModel;
public class TreeUIFailed extends JPanel {
       AnilTreeCellRenderer3 atcr;
       AnilTreeCellEditor4 atce;
       DefaultTreeModel treeModel;
       JTree tree;
       DefaultMutableTreeNode markedNode = null;
     public TreeUIFailed() {
            super(new BorderLayout());
               treeModel = new DefaultTreeModel(null);
               tree = new JTree(treeModel);          
              tree.setEditable(true);
               tree.getSelectionModel().setSelectionMode(
                         TreeSelectionModel.SINGLE_TREE_SELECTION);
               tree.setShowsRootHandles(true);
              tree.setCellRenderer(atcr = new AnilTreeCellRenderer3());
              tree.setCellEditor(atce = new AnilTreeCellEditor4(tree, atcr));
              tree.setRowHeight(0);//TEMP - needed only if setting Win L&F
               JScrollPane scrollPane = new JScrollPane(tree);
               add(scrollPane,BorderLayout.CENTER);
     public void setRootNode(DefaultMutableTreeNode node) {
          treeModel.setRoot(node);
          treeModel.reload();
       public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, UnsupportedLookAndFeelException{
//            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            TreeUIFailed tb = new TreeUIFailed();
            tb.setPreferredSize(new Dimension(800,600));
              JFrame frame = new JFrame("Tree Windows UI Failed");
              frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              frame.setContentPane(tb);
              frame.setSize(800, 600);
              frame.pack();
              frame.setVisible(true);
              tb.populate();
     private void populate() {
          TextAreaNode3 r = new TextAreaNode3(this);
           setRootNode(r);
               r.gNode.notes.addTab("0", null/* icon */, new JTextArea(2,25),
               "no menu!");
               r.gNode.notes.addTab("1", null/* icon */, new JTextArea(2,25),
               "no menu!");
               TextAreaNode3 a = new TextAreaNode3(this);
               a.gNode.notes.addTab("1", null/* icon */, new JTextArea(2,25),
               "no menu!");
           treeModel.insertNodeInto(a, r, r.getChildCount());          
class AnilTreeCellRenderer3 extends DefaultTreeCellRenderer{
     TreeUIFailed panel;
DefaultMutableTreeNode currentNode;
  public AnilTreeCellRenderer3() {
     super();
public Component getTreeCellRendererComponent
   (JTree tree, Object value, boolean selected, boolean expanded,
   boolean leaf, int row, boolean hasFocus){
     TextAreaNode3 currentNode = (TextAreaNode3)value;
     NodeGUI4 gNode = (NodeGUI4) currentNode.gNode;
    return gNode.vBox;
class AnilTreeCellEditor4 extends DefaultTreeCellEditor{
  DefaultTreeCellRenderer rend;
  public AnilTreeCellEditor4(JTree tree, DefaultTreeCellRenderer r){
    super(tree, r);
    rend = r;
  public Component getTreeCellEditorComponent(JTree tree, Object value,
   boolean isSelected, boolean expanded, boolean leaf, int row){
    return rend.getTreeCellRendererComponent(tree, value, isSelected, expanded,
     leaf, row, true);
  public boolean isCellEditable(EventObject event){
    return true;
* this is done to keep gui separate from model - as in MVC.
* not necessary.
* @author juwo
class NodeGUI4 {
     JPanel notesPanel = new JPanel(new BorderLayout(), true);
     JTabbedPane notes = new JTabbedPane(JTabbedPane.RIGHT);
     final TreeUIFailed view;
     Box vBox = Box.createVerticalBox();
     Box hBox = Box.createHorizontalBox();
     final JTextArea textArea = new JTextArea( 1, 5 );
     JToggleButton toggleButton = new JToggleButton();
     NodeGUI4( TreeUIFailed view_ ) {
          this.view = view_;
          toggleButton.setAlignmentX(Component.CENTER_ALIGNMENT);
// BEGIN PROBLEM          
          toggleButton.setPreferredSize(new Dimension(200,toggleButton.getPreferredSize().height));
// END PROBLEM
          vBox.add(toggleButton);
          vBox.add(hBox);
          hBox.add( textArea );
          textArea.setBorder( BorderFactory.createMatteBorder( 0, 0, 1, 0, Color.GREEN ) );
          notesPanel.add(notes);
          hBox.add( notesPanel);
          hBox.setBorder( BorderFactory.createMatteBorder( 5, 5, 5, 5, Color.CYAN ) );
// THE FOLLOWING DOES NOT WORK EITHER!!!          
          //          halo.setPreferredSize(new Dimension(vBox.getPreferredSize().width,halo.getPreferredSize().height));
class TextAreaNode3 extends DefaultMutableTreeNode {  
     NodeGUI4 gNode;
     TextAreaNode3(TreeUIFailed view_t) {     
          gNode = new NodeGUI4(view_t);          
}

Answer 1

ok, sorry!
I understood why it does not work.
Box Layout respects the maximum size of the component.
By default, a JToggleButton is set to 34.
Changing the JToggleButton max width to 75, allows the preferred size to be set.
Thank you camickr!
Note: in contrast, Flow Layout respects the preferred size and ignores the max size!
Message was edited by:
anilp1