How to detect if text has been clipped in a JRadioButton ?

Question

Hi,
Is there any way to test if the text in a JRadioButton (same holds e.g. for a JCheckBox) has been clipped and contains ellipses ... at the end. For a JLabel, knowing the FontMetrics one can use SwingUtilities.computeStringWidth(). I found the method SwingUtilities.layoutCompoundLabel() but it needs to know also the icon, which is not available by getIcon(), if not explicitly set with setIcon() in the JRadioButton.
So, is there any way to get info about the default icon used by the current UI in a JRadioButton or JCheckBox ?
Or better, is there any convenience method I've overseen which may lead to the goal.
Background info:
The text for the JRadioButtons (or JCheckBoxes) are read from a database and Tooltips should only be generated, when clipping occured, as a popup with the same text as in the base component doesn't provide so much new information.
Thanks for your help
ThomasGrewe

Answer 1

Hi,
your problem could be have a solution when you use a right layout manager. You have to use a layout manager wich use the preferredSize from the objects.
I tryed this code and work, with a BoxLayout. I dont understand yor Problem, maybe you have to write your code here (if it is not too long ;) )
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.Border;
public class Test extends JFrame{
  private String[] text;
  private int index = 0;
  private MyRadioButton rb;
  public Test(){
    text = new String[]{"Loooooooooooooooong", "mittttel", "Small", "1"};
    JButton changeText = new JButton("Change Text");
    rb = new MyRadioButton("Radio Button");
    changeText.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
        if(index >= text.length)
          index = 0;
        rb.setText(text[index++]);
        rb.invalidate();
    getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));
    getContentPane().add(changeText);
    getContentPane().add(rb);
  public static void main(String args[]){
    Test f = new Test();
    f.setSize(100,100);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
class MyRadioButton extends JRadioButton{
  public MyRadioButton(String text) {
    super(text);
  // your business methods...
  // set preferred, min, max size
  public Dimension getPreferredSize(){
    // let the UI compute the preferredSize
    return getUI().getPreferredSize(this);
  public Dimension getMinimumSize(){
    return getPreferredSize();
  public Dimension getMaximumSize(){
    return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
}