previewPanel = new WebPanel ( new TableLayout ( new double[][]{ cols, rows } ), abp );
previewPanel.setMinimumWidth ( 230 );
previewPanel.setPreferredHeight ( 400 );
preview = new WebLabel ( "", WebLabel.CENTER );
previewPanel.add ( new ResizablePanel ( preview ), "1,2" );
updatePreviews ();
getNinePatchEditor ().addChangeListener ( new ChangeListener ()
{
@Override