private Map<Integer, Integer> parseColumnWidths(UIWorksheet worksheet)
{
Map<Integer, Integer> columnWidths = new HashMap<Integer, Integer>();
CSSParser parser = new CSSParser();
StyleMap styleMap = parser.getCascadedStyleMap(worksheet);
for (Map.Entry<String, Object> entry : styleMap.entrySet())
{
String key = entry.getKey();
if (key.startsWith(CSSNames.COLUMN_WIDTHS))
{
String columnIndexString = key.substring(CSSNames.COLUMN_WIDTHS.length());