bool AnnotWriter::UpdateAnnotArray(int pageNo, Annotations* annots, Ref annotArray) {
ASSERT(annots->HasChanged());
Object array;
array.initArray(mXRef);
for (int i = 0; i < annots->Length(); i++) {
Annotation* a = annots->At(i);
if (!a->IsDeleted()) {
AddToAnnots(&array, a);
if (a->GetPopup()) AddToAnnots(&array, a->GetPopup());
}
}
// write to file
WriteObject(annotArray, &array);
array.free();
return true;
}
// Create new PDF file and append changed or new annotations
bool AnnotWriter::WriteTo(const char* name) {
if (!CopyFile(name)) return false;
if (!mAnnots.HasChanged()) return true;
AssignShortFontNames();
mFile = fopen(name, "a+b");
bool ok = mFile != NULL;
int numPages = mDoc->getNumPages();
for (int i = 0; ok && i < numPages; i ++) {
mPageRef = *mDoc->getCatalog()->getPageRef(i+1);
Annotations* a = mAnnots.Get(i);
if (a && a->HasChanged()) {
Ref annotArray;
ok = ok && UpdatePage(i, a, annotArray);
ok = ok && UpdateAnnotArray(i, a, annotArray);
for (int j = 0; ok && j < a->Length(); j ++) {
Annotation* an = a->At(j);
if (!an->IsDeleted()) {
if (CanWrite(an)) {
ok = UpdateAnnot(an);
}
} else {
if (!is_empty_ref(an->GetRef())) {
mXRefTable.DeleteRef(an->GetRef());
}
}
}
}
}
if (ok) {
UpdateInfoDict();
UpdateBePDFAcroForm();
UpdateCatalog();
ok = WriteXRefTable();
ok = ok && WriteFileTrailer();
}
if (mFile) {
fclose(mFile); mFile = NULL;
}
if (!ok) {
// delete file on error
unlink(name);
}
UnassignShortFontNames();
return ok;
}
