internal TPdfStream(Stream aDataStream, TPdfSignature aSignature)
{
EndTextData = TPdfBaseRecord.Coder.GetBytes(TPdfTokens.GetString(TPdfToken.CommandEndText) + TPdfTokens.NewLine);
Signature = aSignature;
if (Signature != null)
{
if (Signature.SignerFactory != null)
{
Signer = Signature.SignerFactory.CreateSigner();
}
else
{
PdfMessages.ThrowException(PdfErr.ErrUnassingedSignerFactory);
}
}
if (Signer == null)
{
FDataStream = aDataStream;
}
else
{
FDataStream = new TSignedStream(aDataStream, Signer); //When signing we use a special stream that will compute the hash.
}
SignedStream = FDataStream as TSignedStream;
}
public TAcroFormRecord(TPdfSignature aSignature)
{
FId = -1;
SigFlags = 0;
FieldList = new TAcroFormFieldList();
Signature = aSignature;
if (Signature != null)
{
FieldList.Add(new TAcroSigField(Signature));
SigFlags = 3;
}
}
internal static int GetSignaturePage(TPdfSignature Signature, int PageCount)
{
int Result = 0;
TPdfVisibleSignature VSig = Signature as TPdfVisibleSignature;
if (VSig != null)
{
Result = VSig.Page - 1;
}
if (Result < 0 || Result >= PageCount)
{
Result = PageCount - 1;
}
return(Result);
}
internal TPageInfo GetSigPage(TPdfSignature Signature)
{
int CurrentPage = TAcroFormRecord.GetSignaturePage(Signature, FList.Count);
return(FList[CurrentPage]);
}
internal void BeginSave(TPdfStream DataStream, TXRefSection XRef, TPaperDimensions PageSize, TPdfSignature Signature, string aFallbackFontList, TFontEvents FontEvents)
{
CatalogId = XRef.GetNewObject(DataStream);
int PageTreeId = XRef.GetNewObject(DataStream);
PageTree = new TPageTreeRecord(PageTreeId, aFallbackFontList, Compress, FontEvents);
Info = new TInfoRecord();
AcroForm = new TAcroFormRecord(Signature);
Perms = new TPermsRecord();
CreateNewPage(DataStream, XRef, PageSize);
}
internal void EndSave(TPdfStream DataStream, TXRefSection XRef, TPdfProperties Properties, TPdfSignature Signature)
{
FinishPage(DataStream, XRef);
TPdfToken P = TPdfToken.None;
switch (PageLayout)
{
case TPageLayout.Outlines: P = TPdfToken.UseOutlinesName; break;
case TPageLayout.Thumbs: P = TPdfToken.UseThumbsName; break;
case TPageLayout.FullScreen: P = TPdfToken.FullScreenName; break;
}
int OutlinesId = -1;
if (Bookmarks.Count > 0)
{
OutlinesId = XRef.GetNewObject(DataStream);
}
TDocumentCatalogRecord.SaveToStream(DataStream, XRef, CatalogId, PageTree.Id, OutlinesId,
AcroForm.GetId(DataStream, XRef), Perms.GetId(DataStream, XRef, AcroForm.SignatureFieldId(DataStream, XRef)), P);
PageTree.SaveToStream(DataStream, XRef, AcroForm);
SaveBookmarks(DataStream, XRef, OutlinesId);
Info.SaveToStream(DataStream, XRef, Properties);
Perms.SaveToStream(DataStream, XRef, AcroForm.SignatureFieldId(DataStream, XRef));
AcroForm.SaveToStream(DataStream, XRef, PageTree.GetSigPage(Signature)); //We save it last because it needs to keep everything after it in memory for signing it.
}
internal TAcroSigField(TPdfSignature aSignature) : base()
{
Signature = aSignature;
}
