* Returns the information regarding the currently configured pane (split or freeze).
*
* @return null if no pane configured, or the pane information.
*/
public PaneInformation getPaneInformation() {
CTPane pane = getDefaultSheetView().getPane();
// no pane configured
if(pane == null) return null;
CellReference cellRef = pane.isSetTopLeftCell() ? new CellReference(pane.getTopLeftCell()) : null;
return new PaneInformation((short)pane.getXSplit(), (short)pane.getYSplit(),
(short)(cellRef == null ? 0 : cellRef.getRow()),(cellRef == null ? 0 : cellRef.getCol()),
(byte)(pane.getActivePane().intValue() - 1), pane.getState() == STPaneState.FROZEN);
}