JFileChooser Approve_Button moves/"jumps"

Question

I have created a subclass of the JFileChooser , setting the my own images on the Save/Open & Cancel buttons. I do this through a changeproperty event.
Everything works well until I click the File Name textfield - this causes the Save/Open button to move.
Any ides ?
The code is below:
public class CustomFileChooser extends JFileChooser {
public CustomFileChooser() {
super();
setFileChooserUI(this);
addPropertyChangeListener(new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
JFileChooser chooser = (JFileChooser)evt.getSource();
setFileChooserUI(chooser);
public void setFileChooserUI (Container container) {
Component c []= container.getComponents();
for (int i = 0; i < c.length; i++) {
Component component = c;
if (component instanceof JButton) {
updateButtonLook((JButton)component);
else if (component instanceof JTextField) {
((JTextField)component).setPreferredSize(new Dimension(300,20));
((JTextField)component).setMinimumSize(new Dimension(300,20));
else if (component instanceof Container) {
if (component instanceof JToolBar)
component.setBackground(Color.white);
setFileChooserUI((Container)component);
private void updateButtonLook (JButton button) {
String text = button.getText();
if (text!=null) {
if (text.toLowerCase().equals("open") ||text.toLowerCase().equals("cancel") ||
text.toLowerCase().equals("save")) {
if (text.toLowerCase().equals("open"))
text=text+"_";
else if (text.toLowerCase().equals("save"))
text="Save";
button.setBorder(null);
button.setBackground(Color.white);
button.setText(null);
button.setOpaque(false);
button.setMinimumSize(new Dimension (73,21));
button.setPreferredSize(new Dimension (73,21));
button.setMaximumSize(new Dimension (73,21));
button.setDisabledIcon(jNMS.Graphics.JNMSResource.getJNMSResource().getIcon(text+" DISABLE.gif"));
button.setIcon(jNMS.Graphics.JNMSResource.getJNMSResource().getIcon(text+" OFF.gif"));
button.setPressedIcon(jNMS.Graphics.JNMSResource.getJNMSResource().getIcon(text+" ON.gif"));
button.setRolloverIcon(jNMS.Graphics.JNMSResource.getJNMSResource().getIcon(text+" ROLL OVER.gif"));

Answer 1

What is the error that you are getting? One work around is that you can simply go ahead and try to do a file operation using theFile.. all you need to do is enclose it in a try catch block and catch the exception. Once an exception is thrown, that is where you can write you error reporting code..
hth