C# PdfWriter.WriteRaw方法代碼示例

    /// <summary>
    /// Writes the iref section in pdf stream.
    /// </summary>
    internal void WriteObject(PdfWriter writer)
    {
      writer.WriteRaw("xref\n");

      //      PdfObjectID[] objectIDs2 = AllObjectIDs;
      PdfReference[] irefs = AllReferences;
      //      PdfObjectID id1 = objectIDs2[0];
      //      PdfReference     xref1 = irefs[0];
      //      id1.GetType();
      //      xref1.GetType();
      //ArrayList list = new ArrayList(AllObjectIDs);
      //list.Sort();
      //list.CopyTo(objectIDs);

      int count = irefs.Length;
      writer.WriteRaw(String.Format("0 {0}\n", count + 1));
      writer.WriteRaw(String.Format("{0:0000000000} {1:00000} {2} \n", 0, 65535, "f"));
      //PdfEncoders.WriteAnsi(stream, text);

      for (int idx = 0; idx < count; idx++)
      {
        PdfReference iref = irefs[idx];

        //text = String.Format("{0} {1}\n", iref.ObjectID.ObjectNumber, 1);
        //PdfEncoders.WriteAnsi(stream, text);

        // Acrobat is very pedantic; it must be exactly 20 bytes per line.
        writer.WriteRaw(
          String.Format("{0:0000000000} {1:00000} {2} \n", iref.Position, iref.GenerationNumber, "n"));
        //PdfEncoders.WriteAnsi(stream, text);
      }
    }

    /// <summary>
    /// Writes the object in PDF iref table format.
    /// </summary>
    internal void WriteXRefEnty(PdfWriter writer)
    {
      // PDFsharp does not yet support PDF 1.5 object streams.

      // Each line must be exactly 20 bytes long, otherwise Acrobat repairs the file.
      string text = String.Format("{0:0000000000} {1:00000} n\n",
        this.position, this.objectID.GenerationNumber); // this.InUse ? 'n' : 'f');
      writer.WriteRaw(text);
    }

        /// <summary>
        /// Writes the xref section in pdf stream.
        /// </summary>
        internal void WriteObject(PdfWriter writer)
        {
            writer.WriteRaw("xref\n");

            PdfReference[] irefs = AllReferences;

            int count = irefs.Length;
            writer.WriteRaw(String.Format("0 {0}\n", count + 1));
            writer.WriteRaw(String.Format("{0:0000000000} {1:00000} {2} \n", 0, 65535, "f"));
            //PdfEncoders.WriteAnsi(stream, text);

            for (int idx = 0; idx < count; idx++)
            {
                PdfReference iref = irefs[idx];

                // Acrobat is very pedantic; it must be exactly 20 bytes per line.
                writer.WriteRaw(String.Format("{0:0000000000} {1:00000} {2} \n", iref.Position, iref.GenerationNumber, "n"));
            }
        }

 internal override void WriteObject(PdfWriter writer)
 {
     // Implementet because it must be overridden.
     writer.WriteRaw(" null ");
 }

 /// <summary>
 /// Writes the keyword «null».
 /// </summary>
 internal override void WriteObject(PdfWriter writer)
 {
   writer.WriteBeginObject(this);
   writer.WriteRaw(" null ");
   writer.WriteEndObject();
 }

    /// <summary>
    /// Implements saving a PDF file.
    /// </summary>
    void DoSave(PdfWriter writer)
    {
      if (this.pages == null || this.pages.Count == 0)
        throw new InvalidOperationException("Cannot save a PDF document with no pages.");

      try
      {
        bool encrypt = this.securitySettings.DocumentSecurityLevel != PdfDocumentSecurityLevel.None;
        if (encrypt)
        {
          PdfStandardSecurityHandler securityHandler = this.securitySettings.SecurityHandler;
          if (securityHandler.Reference == null)
            this.irefTable.Add(securityHandler);
          else
            Debug.Assert(this.irefTable.Contains(securityHandler.ObjectID));
          this.trailer.Elements[PdfTrailer.Keys.Encrypt] = this.securitySettings.SecurityHandler.Reference;
        }
        else
          this.trailer.Elements.Remove(PdfTrailer.Keys.Encrypt);

        PrepareForSave();

        if (encrypt)
          this.securitySettings.SecurityHandler.PrepareEncryption();

        writer.WriteFileHeader(this);
        PdfReference[] irefs = this.irefTable.AllReferences;
        int count = irefs.Length;
        for (int idx = 0; idx < count; idx++)
        {
          PdfReference iref = irefs[idx];
#if DEBUG_
          if (iref.ObjectNumber == 378)
            GetType();
#endif
          iref.Position = writer.Position;
          iref.Value.WriteObject(writer);
        }
        int startxref = writer.Position;
        this.irefTable.WriteObject(writer);
        writer.WriteRaw("trailer\n");
        this.trailer.Elements.SetInteger("/Size", count + 1);
        this.trailer.WriteObject(writer);
        writer.WriteEof(this, startxref);

        //if (encrypt)
        //{
        //  this.state &= ~DocumentState.SavingEncrypted;
        //  //this.securitySettings.SecurityHandler.EncryptDocument();
        //}
      }
      finally
      {
        if (writer != null)
        {
          writer.Stream.Flush();
          // DO NOT CLOSE WRITER HERE
          //writer.Close();
        }
      }
    }