void Initialize()
{
//this.info = new PdfInfo(this);
fontTable = new PdfFontTable(this);
imageTable = new PdfImageTable(this);
trailer = new PdfTrailer(this);
irefTable = new PdfReferenceTable(this);
trailer.CreateNewDocumentIDs();
}
internal PdfDocument(Lexer lexer)
{
//PdfDocument.Gob.AttatchDocument(this.Handle);
creation = DateTime.Now;
state = DocumentState.Imported;
//this.info = new PdfInfo(this);
//this.pages = new PdfPages(this);
//this.fontTable = new PdfFontTable();
//this.catalog = new PdfCatalog(this);
////this.font = new PdfFont();
//this.objects = new PdfObjectTable(this);
//this.trailer = new PdfTrailer(this);
irefTable = new PdfReferenceTable(this);
this.lexer = lexer;
}
/// <summary>
///
/// </summary>
PdfTrailer ReadXRefTableAndTrailer(PdfReferenceTable xrefTable)
{
Debug.Assert(xrefTable != null);
Symbol symbol = ScanNextToken();
// Is it an xref stream?
if (symbol == Symbol.Integer)
throw new PdfReaderException(PSSR.CannotHandleXRefStreams);
// TODO: We have all code to handle them -> just do it
Debug.Assert(symbol == Symbol.XRef);
while (true)
{
symbol = ScanNextToken();
if (symbol == Symbol.Integer)
{
int start = this.lexer.TokenToInteger;
int length = ReadInteger();
for (int id = start; id < start + length; id++)
{
int position = ReadInteger();
int generation = ReadInteger();
ReadSymbol(Symbol.Keyword);
string token = lexer.Token;
// Skip start entry
if (id == 0)
continue;
// Skip unused entries.
if (token != "n")
continue;
// Even it is restricted, an object can exists in more than one subsection.
// (PDF Reference Implementation Notes 15).
PdfObjectID objectID = new PdfObjectID(id, generation);
// Ignore the latter one
if (xrefTable.Contains(objectID))
continue;
xrefTable.Add(new PdfReference(objectID, position));
}
}
else if (symbol == Symbol.Trailer)
{
ReadSymbol(Symbol.BeginDictionary);
PdfTrailer trailer = new PdfTrailer(this.document);
this.ReadDictionary(trailer, false);
return trailer;
}
else
throw new PdfReaderException(PSSR.UnexpectedToken(this.lexer.Token));
}
}
