/**
* Sees if the extended formatting record at the specified position represents a date. First
* checks against the built in formats, and then checks against the hash map of FormatRecords
*
* @param pos the xf format index
* @return TRUE if this format index is formatted as a Date
*/
public final boolean isDate(int pos) {
XFRecord xfr = (XFRecord) xfRecords.get(pos);
if (xfr.isDate()) {
return true;
}
FormatRecord fr = (FormatRecord) formats.get(new Integer(xfr.getFormatRecord()));
return fr == null ? false : fr.isDate();
}
/**
* Adds an extended formatting record to the list. If the XF record passed in has not been
* initialized, its index is determined based on the xfRecords list, and this position is passed
* to the XF records initialize method
*
* @param xf the xf record to add
* @exception NumFormatRecordsException
*/
public final void addStyle(XFRecord xf) throws NumFormatRecordsException {
if (!xf.isInitialized()) {
int pos = xfRecords.size();
xf.initialize(pos, this, fonts);
xfRecords.add(xf);
} else {
// The XF record has probably been read in. If the index is greater
// Than the size of the list, then it is not a preset format,
// so add it
if (xf.getXFIndex() >= xfRecords.size()) {
xfRecords.add(xf);
}
}
}
/**
* Gets the NumberFormat used to format the cell.
*
* @param pos the xf format index
* @return the DateFormat object used to format the date in the original excel cell
*/
public final NumberFormat getNumberFormat(int pos) {
XFRecord xfr = (XFRecord) xfRecords.get(pos);
if (xfr.isNumber()) {
return xfr.getNumberFormat();
}
FormatRecord fr = (FormatRecord) formats.get(new Integer(xfr.getFormatRecord()));
if (fr == null) {
return null;
}
return fr.isNumber() ? fr.getNumberFormat() : null;
}
/**
* Rationalizes the cell formats. Duplicate formats are removed and the format indexed of the
* cells adjusted accordingly
*/
public IndexMapping rationalize(IndexMapping fontMapping, IndexMapping formatMapping) {
// Update the index codes for the XF records using the format
// mapping and the font mapping
// at the same time
XFRecord xfr = null;
for (Iterator it = xfRecords.iterator(); it.hasNext(); ) {
xfr = (XFRecord) it.next();
if (xfr.getFormatRecord() >= customFormatStartIndex) {
xfr.setFormatIndex(formatMapping.getNewIndex(xfr.getFormatRecord()));
}
xfr.setFontIndex(fontMapping.getNewIndex(xfr.getFontIndex()));
}
ArrayList newrecords = new ArrayList(minXFRecords);
IndexMapping mapping = new IndexMapping(xfRecords.size());
int numremoved = 0;
// Copy across the fundamental styles
for (int i = 0; i < minXFRecords; i++) {
newrecords.add(xfRecords.get(i));
mapping.setMapping(i, i);
}
// Iterate through the old list
for (int i = minXFRecords; i < xfRecords.size(); i++) {
XFRecord xf = (XFRecord) xfRecords.get(i);
// Compare against formats already on the list
boolean duplicate = false;
for (Iterator it = newrecords.iterator(); it.hasNext() && !duplicate; ) {
XFRecord xf2 = (XFRecord) it.next();
if (xf2.equals(xf)) {
duplicate = true;
mapping.setMapping(i, mapping.getNewIndex(xf2.getXFIndex()));
numremoved++;
// System.out.println("xf " +i + " is the same as " + xf2.getXFIndex());
}
}
// If this format is not a duplicate then add it to the new list
if (!duplicate) {
newrecords.add(xf);
mapping.setMapping(i, i - numremoved);
}
}
// It is sufficient to merely change the xf index field on all XFRecords
// In this case, CellValues which refer to defunct format records
// will nevertheless be written out with the correct index number
for (Iterator i = xfRecords.iterator(); i.hasNext(); ) {
XFRecord xf = (XFRecord) i.next();
xf.rationalize(mapping);
}
// Set the new list
xfRecords = newrecords;
// System.out.println("Rationalize: removed " + numremoved + " XF records");
return mapping;
}