/**
* This method scans the document for all WidgetAnnotation objects.
*
* <p>This is done because some writer do not create a correct list of all PDAcroFormField objects
* in the AcroForm. In the case that the list of children is empty, we go and search ourselves for
* candidates...
*
* @param doc The document to reconstruct.
*/
protected COSArray reconstruct(PDDocument doc) {
COSArray result = COSArray.create();
if (doc == null) {
return result;
}
PDPageTree pageTree = doc.getPageTree();
if (pageTree == null) {
return result;
}
boolean signatureExists = false;
for (PDPage page = pageTree.getFirstPage(); page != null; page = page.getNextPage()) {
List annotations = page.getAnnotations();
if (annotations == null) {
continue;
}
for (Iterator it = annotations.iterator(); it.hasNext(); ) {
PDAnnotation annot = (PDAnnotation) it.next();
if (annot.isWidgetAnnotation()) {
COSDictionary cosAnnot = annot.cosGetDict();
result.basicAddSilent(cosAnnot);
cosAnnot.basicRemoveSilent(PDAcroFormField.DK_Parent);
signatureExists |= cosAnnot.get(PDAcroFormField.DK_FT).equals(PDAcroFormField.CN_FT_Sig);
}
}
}
if (signatureExists) {
int flags = getFieldInt(PDAcroForm.DK_SigFlags, 0);
flags |= AcroFormSigFlags.Bit_AppendOnly | AcroFormSigFlags.Bit_SignatureExists;
cosGetDict().basicPutSilent(PDAcroForm.DK_SigFlags, COSInteger.create(flags));
}
return result;
}
public void setPage(PDPage page) {
COSArray definition = cosGetArray();
if (definition.size() == 0) {
definition.add(page.cosGetObject());
} else {
definition.set(0, page.cosGetObject());
}
}
