private PdfFormField MergeFieldsWithTheSameName(PdfFormField existingField, PdfFormField newField)
{
String fullFieldName = newField.GetFieldName().ToUnicodeString();
PdfString fieldName = newField.GetPdfObject().GetAsString(PdfName.T);
newField.GetPdfObject().Remove(PdfName.T);
newField.GetPdfObject().Remove(PdfName.P);
existingField = formTo.GetField(fullFieldName);
PdfArray kids = existingField.GetKids();
if (kids != null && !kids.IsEmpty())
{
existingField.AddKid(newField);
return(existingField);
}
existingField.GetPdfObject().Remove(PdfName.T);
existingField.GetPdfObject().Remove(PdfName.P);
formTo.GetFields().Remove(existingField.GetPdfObject());
PdfFormField mergedField = PdfFormField.CreateEmptyField(documentTo);
mergedField.Put(PdfName.FT, existingField.GetFormType()).Put(PdfName.T, fieldName);
PdfDictionary parent = existingField.GetParent();
if (parent != null)
{
mergedField.Put(PdfName.Parent, parent);
PdfArray parentKids = parent.GetAsArray(PdfName.Kids);
for (int i = 0; i < parentKids.Size(); i++)
{
PdfObject obj = parentKids.Get(i);
if (obj == existingField.GetPdfObject())
{
parentKids.Set(i, mergedField.GetPdfObject());
break;
}
}
}
kids = existingField.GetKids();
if (kids != null)
{
mergedField.Put(PdfName.Kids, kids);
}
mergedField.AddKid(existingField).AddKid(newField);
PdfObject value = existingField.GetValue();
if (value != null)
{
mergedField.Put(PdfName.V, existingField.GetPdfObject().Get(PdfName.V));
}
return(mergedField);
}
private PdfFormField MergeFieldsWithTheSameName(PdfFormField existingField, PdfFormField newField)
{
String fieldName = newField.GetFieldName().ToUnicodeString();
existingField.GetPdfObject().Remove(PdfName.T);
PdfFormField mergedField = formTo.GetField(fieldName);
PdfArray kids = mergedField.GetKids();
if (kids != null && !kids.IsEmpty())
{
mergedField.AddKid(existingField);
return(mergedField);
}
newField.GetPdfObject().Remove(PdfName.T);
mergedField = PdfFormField.CreateEmptyField(documentTo);
formTo.GetFields().Remove(newField.GetPdfObject());
mergedField.Put(PdfName.FT, existingField.GetFormType()).Put(PdfName.T, new PdfString(fieldName));
PdfDictionary parent = existingField.GetParent();
if (parent != null)
{
mergedField.Put(PdfName.Parent, parent);
}
kids = existingField.GetKids();
if (kids != null)
{
mergedField.Put(PdfName.Kids, kids);
}
mergedField.AddKid(existingField).AddKid(newField);
return(mergedField);
}
private void CopyParentFormField(PdfPage toPage, IDictionary <String, PdfFormField> fieldsTo, PdfAnnotation
annot, PdfFormField parentField)
{
PdfString parentName = parentField.GetFieldName();
if (!fieldsTo.ContainsKey(parentName.ToUnicodeString()))
{
PdfFormField field = CreateParentFieldCopy(annot.GetPdfObject(), documentTo);
PdfArray kids = field.GetKids();
field.GetPdfObject().Remove(PdfName.Kids);
formTo.AddField(field, toPage);
field.GetPdfObject().Put(PdfName.Kids, kids);
}
else
{
PdfFormField field = MakeFormField(annot.GetPdfObject());
if (field == null)
{
return;
}
PdfString fieldName = field.GetFieldName();
if (fieldName != null)
{
PdfFormField existingField = fieldsTo.Get(fieldName.ToUnicodeString());
if (existingField != null)
{
PdfFormField mergedField = MergeFieldsWithTheSameName(field);
formTo.GetFormFields().Put(mergedField.GetFieldName().ToUnicodeString(), mergedField);
}
else
{
HashSet <String> existingFields = new HashSet <String>();
GetAllFieldNames(formTo.GetFields(), existingFields);
AddChildToExistingParent(annot.GetPdfObject(), existingFields, fieldsTo);
}
}
else
{
if (!parentField.GetKids().Contains(field.GetPdfObject()))
{
HashSet <String> existingFields = new HashSet <String>();
GetAllFieldNames(formTo.GetFields(), existingFields);
AddChildToExistingParent(annot.GetPdfObject(), existingFields);
}
}
}
}
private void CopyExistingField(PdfPage toPage, PdfAnnotation currentAnnot)
{
PdfFormField field = MergeFieldsWithTheSameName(PdfFormField.MakeFormField(currentAnnot.GetPdfObject(), toPage
.GetDocument()));
PdfArray kids = field.GetKids();
if (kids != null)
{
field.GetPdfObject().Remove(PdfName.Kids);
formTo.AddField(field, toPage);
field.GetPdfObject().Put(PdfName.Kids, kids);
}
else
{
formTo.AddField(field, toPage);
}
}
public virtual void Copy(PdfPage fromPage, PdfPage toPage)
{
if (documentFrom != fromPage.GetDocument())
{
documentFrom = fromPage.GetDocument();
formFrom = PdfAcroForm.GetAcroForm(documentFrom, false);
}
if (documentTo != toPage.GetDocument())
{
documentTo = toPage.GetDocument();
formTo = PdfAcroForm.GetAcroForm(documentTo, true);
}
if (formFrom != null)
{
//duplicate AcroForm dictionary
IList <PdfName> excludedKeys = new List <PdfName>();
excludedKeys.Add(PdfName.Fields);
excludedKeys.Add(PdfName.DR);
PdfDictionary dict = formFrom.GetPdfObject().CopyTo(documentTo, excludedKeys, false);
formTo.GetPdfObject().MergeDifferent(dict);
}
if (formFrom != null)
{
IDictionary <String, PdfFormField> fieldsFrom = formFrom.GetFormFields();
if (fieldsFrom.Count > 0)
{
IDictionary <String, PdfFormField> fieldsTo = formTo.GetFormFields();
IList <PdfAnnotation> annots = toPage.GetAnnotations();
foreach (PdfAnnotation annot in annots)
{
if (annot.GetSubtype().Equals(PdfName.Widget))
{
PdfDictionary parent = annot.GetPdfObject().GetAsDictionary(PdfName.Parent);
if (parent != null)
{
PdfFormField parentField = GetParentField(parent, documentTo);
PdfString parentName = parentField.GetFieldName();
if (parentName == null)
{
continue;
}
if (!fieldsTo.ContainsKey(parentName.ToUnicodeString()))
{
PdfFormField field = CreateParentFieldCopy(annot.GetPdfObject(), documentTo);
PdfArray kids = field.GetKids();
field.GetPdfObject().Remove(PdfName.Kids);
formTo.AddField(field, toPage);
field.GetPdfObject().Put(PdfName.Kids, kids);
}
else
{
PdfFormField field = PdfFormField.MakeFormField(annot.GetPdfObject(), documentTo);
PdfString fieldName = field.GetFieldName();
if (fieldName != null)
{
PdfFormField existingField = fieldsTo.Get(fieldName.ToUnicodeString());
if (existingField != null)
{
PdfFormField clonedField = PdfFormField.MakeFormField(field.GetPdfObject().Clone().MakeIndirect(documentTo
), documentTo);
toPage.GetPdfObject().GetAsArray(PdfName.Annots).Add(clonedField.GetPdfObject());
toPage.RemoveAnnotation(annot);
MergeFieldsWithTheSameName(clonedField);
}
else
{
HashSet <String> existingFields = new HashSet <String>();
GetAllFieldNames(formTo.GetFields(), existingFields);
AddChildToExistingParent(annot.GetPdfObject(), existingFields);
}
}
else
{
if (!parentField.GetKids().Contains(field.GetPdfObject()))
{
HashSet <String> existingFields = new HashSet <String>();
GetAllFieldNames(formTo.GetFields(), existingFields);
AddChildToExistingParent(annot.GetPdfObject(), existingFields);
}
}
}
}
else
{
PdfString annotName = annot.GetPdfObject().GetAsString(PdfName.T);
String annotNameString = null;
if (annotName != null)
{
annotNameString = annotName.ToUnicodeString();
}
if (annotNameString != null && fieldsFrom.ContainsKey(annotNameString))
{
PdfFormField field = fieldsTo.Get(annotNameString);
if (field != null)
{
PdfDictionary clonedAnnot = (PdfDictionary)annot.GetPdfObject().Clone().MakeIndirect(documentTo);
toPage.GetPdfObject().GetAsArray(PdfName.Annots).Add(clonedAnnot);
toPage.RemoveAnnotation(annot);
field = MergeFieldsWithTheSameName(PdfFormField.MakeFormField(clonedAnnot, toPage.GetDocument()));
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.DOCUMENT_ALREADY_HAS_FIELD, annotNameString
));
PdfArray kids = field.GetKids();
if (kids != null)
{
field.GetPdfObject().Remove(PdfName.Kids);
formTo.AddField(field, toPage);
field.GetPdfObject().Put(PdfName.Kids, kids);
}
else
{
formTo.AddField(field, toPage);
}
}
else
{
formTo.AddField(PdfFormField.MakeFormField(annot.GetPdfObject(), documentTo), null);
}
}
}
}
}
}
}
}
private PdfFormField MergeFieldsWithTheSameName(PdfFormField newField)
{
String fullFieldName = newField.GetFieldName().ToUnicodeString();
PdfString fieldName = newField.GetPdfObject().GetAsString(PdfName.T);
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.DOCUMENT_ALREADY_HAS_FIELD, fullFieldName
));
PdfFormField existingField = formTo.GetField(fullFieldName);
if (existingField.IsFlushed())
{
int index = 0;
do
{
index++;
newField.SetFieldName(fieldName.ToUnicodeString() + "_#" + index);
fullFieldName = newField.GetFieldName().ToUnicodeString();
}while (formTo.GetField(fullFieldName) != null);
return(newField);
}
newField.GetPdfObject().Remove(PdfName.T);
newField.GetPdfObject().Remove(PdfName.P);
formTo.GetFields().Remove(existingField.GetPdfObject());
PdfArray kids = existingField.GetKids();
if (kids != null && !kids.IsEmpty())
{
existingField.AddKid(newField);
return(existingField);
}
existingField.GetPdfObject().Remove(PdfName.T);
existingField.GetPdfObject().Remove(PdfName.P);
PdfFormField mergedField = PdfFormField.CreateEmptyField(documentTo);
mergedField.Put(PdfName.FT, existingField.GetFormType()).Put(PdfName.T, fieldName);
PdfDictionary parent = existingField.GetParent();
if (parent != null)
{
mergedField.Put(PdfName.Parent, parent);
PdfArray parentKids = parent.GetAsArray(PdfName.Kids);
for (int i = 0; i < parentKids.Size(); i++)
{
PdfObject obj = parentKids.Get(i);
if (obj == existingField.GetPdfObject())
{
parentKids.Set(i, mergedField.GetPdfObject());
break;
}
}
}
kids = existingField.GetKids();
if (kids != null)
{
mergedField.Put(PdfName.Kids, kids);
}
mergedField.AddKid(existingField).AddKid(newField);
PdfObject value = existingField.GetPdfObject().Get(PdfName.V);
if (value != null)
{
mergedField.Put(PdfName.V, existingField.GetPdfObject().Get(PdfName.V));
}
return(mergedField);
}
public virtual void Copy(PdfPage fromPage, PdfPage toPage)
{
if (documentFrom != fromPage.GetDocument())
{
documentFrom = fromPage.GetDocument();
formFrom = PdfAcroForm.GetAcroForm(documentFrom, false);
}
if (documentTo != toPage.GetDocument())
{
documentTo = toPage.GetDocument();
formTo = PdfAcroForm.GetAcroForm(documentTo, true);
if (formFrom != null)
{
//duplicate AcroForm dictionary
IList <PdfName> excludedKeys = new List <PdfName>();
excludedKeys.Add(PdfName.Fields);
excludedKeys.Add(PdfName.DR);
PdfDictionary dict = formFrom.GetPdfObject().CopyTo(documentTo, excludedKeys, false);
formTo.GetPdfObject().MergeDifferent(dict);
}
}
IList <PdfDictionary> usedParents = new List <PdfDictionary>();
if (formFrom != null)
{
IDictionary <String, PdfFormField> fieldsFrom = formFrom.GetFormFields();
if (fieldsFrom.Count > 0)
{
IDictionary <String, PdfFormField> fieldsTo = formTo.GetFormFields();
IList <PdfAnnotation> annots = toPage.GetAnnotations();
foreach (PdfAnnotation annot in annots)
{
if (annot.GetSubtype().Equals(PdfName.Widget))
{
PdfDictionary parent = annot.GetPdfObject().GetAsDictionary(PdfName.Parent);
if (parent != null)
{
PdfString parentName = parent.GetAsString(PdfName.T);
if (parentName == null)
{
continue;
}
if (!usedParents.Contains(parent))
{
PdfFormField field = PdfFormField.MakeFormField(parent, toPage.GetDocument());
field.GetKids().Clear();
formTo.AddField(field, toPage);
usedParents.Add(parent);
field.AddKid((PdfWidgetAnnotation)annot);
}
else
{
parent.GetAsArray(PdfName.Kids).Add(annot.GetPdfObject());
}
}
else
{
PdfString annotName = annot.GetPdfObject().GetAsString(PdfName.T);
String annotNameString = null;
if (annotName != null)
{
annotNameString = annotName.ToUnicodeString();
}
if (annotNameString != null && fieldsFrom.ContainsKey(annotNameString))
{
PdfFormField field = PdfFormField.MakeFormField(annot.GetPdfObject(), toPage.GetDocument());
if (fieldsTo.ContainsKey(annotNameString))
{
field = MergeFieldsWithTheSameName(field, fieldsTo.Get(annotNameString));
ILogger logger = LoggerFactory.GetLogger(typeof(PdfPageFormCopier));
logger.Warn(String.Format(LogMessageConstant.DOCUMENT_ALREADY_HAS_FIELD, annotNameString));
}
formTo.AddField(field, null);
}
}
}
}
}
}
}