*
*/
private void createScrollPane(PresentationFile<?> file)
{
removeAll();
ZipTree ziptree = new ZipTree(createZipData(file));
JScrollPane scrollPane = new JScrollPane(ziptree);
scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
add(scrollPane, BorderLayout.CENTER);
SwingUtilities.updateComponentTreeUI(this);