}
// Grab the SlidePersistAtom with the highest Slide Number.
// (Will stay as null if no SlidePersistAtom exists yet in
// the slide, or only master slide's ones do)
SlidePersistAtom prev = null;
for(int i=0; i<slwts.length; i++) {
SlideAtomsSet[] sas = slwts[i].getSlideAtomsSets();
for(int j=0; j<sas.length; j++) {
SlidePersistAtom spa = sas[j].getSlidePersistAtom();
if(spa.getSlideIdentifier() < 0) {
// This is for a master slide
} else {
// Must be for a real slide
if(prev == null) { prev = spa; }
if(prev.getSlideIdentifier() < spa.getSlideIdentifier()) {
prev = spa;
}
}
}
}
// Set up a new SlidePersistAtom for this slide
SlidePersistAtom sp = new SlidePersistAtom();
// Reference is the 1-based index of the slide container in
// the PersistPtr root.
// It always starts with 3 (1 is Document, 2 is MainMaster, 3 is
// the first slide), but quicksaves etc can leave gaps
_highestSheetId++;
sp.setRefID(_highestSheetId);
// First slideId is always 256
sp.setSlideIdentifier(prev == null ? 256 : (prev.getSlideIdentifier() + 1));
// Add this new SlidePersistAtom to the SlideListWithText
slist.addSlidePersistAtom(sp);
// Create a new Slide
Slide slide = new Slide(sp.getSlideIdentifier(), sp.getRefID(), _slides.length+1);
// Add in to the list of Slides
Slide[] s = new Slide[_slides.length+1];
System.arraycopy(_slides, 0, s, 0, _slides.length);
s[_slides.length] = slide;
_slides = s;
System.out.println("Added slide " + _slides.length + " with ref " + sp.getRefID() + " and identifier " + sp.getSlideIdentifier());
// Add the core records for this new Slide to the record tree
org.apache.poi.hslf.record.Slide slideRecord = slide.getSlideRecord();
slideRecord.setSheetId(sp.getRefID());
int slideRecordPos = _hslfSlideShow.appendRootLevelRecord(slideRecord);
_records = _hslfSlideShow.getRecords();
// Add the new Slide into the PersistPtr stuff
int offset = 0;
int slideOffset = 0;
PersistPtrHolder ptr = null;
UserEditAtom usr = null;
for (int i = 0; i < _records.length; i++) {
Record record = _records[i];
ByteArrayOutputStream out = new ByteArrayOutputStream();
record.writeOut(out);
// Grab interesting records as they come past
if(_records[i].getRecordType() == RecordTypes.PersistPtrIncrementalBlock.typeID){
ptr = (PersistPtrHolder)_records[i];
}
if(_records[i].getRecordType() == RecordTypes.UserEditAtom.typeID) {
usr = (UserEditAtom)_records[i];
}
if(i == slideRecordPos) {
slideOffset = offset;
}
offset += out.size();
}
// Add the new slide into the last PersistPtr
// (Also need to tell it where it is)
slideRecord.setLastOnDiskOffset(slideOffset);
ptr.addSlideLookup(sp.getRefID(), slideOffset);
System.out.println("New slide ended up at " + slideOffset);
// Last view is now of the slide
usr.setLastViewType((short)UserEditAtom.LAST_VIEW_SLIDE_VIEW);