* @author Markus Kr�ger
*/
public static IPropertyKey[] getPossiblyPropertyKeys() {
if (PROPERTY_KEYS == null) {
PROPERTY_KEYS = new PropertyKey[] {
new PropertyKey("RepeatHeadline", null, null),
new PropertyKey("TableColumnSeparators", null, null),
new PropertyKey("TableColumnRelativeSum", null, null),
new PropertyKey("BreakType", null, null),
new PropertyKey("LeftMargin", null, null),
new PropertyKey("RightMargin", null, null),
new PropertyKey("TopMargin", null, null),
new PropertyKey("BottomMargin", null, null),
new PropertyKey("HoriOrient", null, null),
new PropertyKey("ShadowFormat", null, null),
new PropertyKey("TableBorder", null, null),
new PropertyKey("BackColor", null, null), };
}
return PROPERTY_KEYS;
}