示例#1
0
文件: PdfForms.cs 项目: mwilian/demos
        private static void Saven2(TPdfStream DataStream, TXRefSection XRef, TPdfVisibleSignature VSig, int n2Id)
        {
            string s = String.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3} {4} {5} cm ",
                                     VSig.Rect.Width,
                                     0, 0,
                                     VSig.Rect.Height,
                                     0, 0);

            string StreamContents = "q " + s + TPdfTokens.GetString(TPdfToken.ImgPrefix) + "0 Do Q";

            XRef.SetObjectOffset(n2Id, DataStream);
            TIndirectRecord.SaveHeader(DataStream, n2Id);
            BeginDictionary(DataStream);
            WriteCommonXObject(DataStream, VSig.Rect, StreamContents);

            TPdfResources Resources = new TPdfResources(null, false, null);

            using (MemoryStream ImgStream = new MemoryStream(VSig.ImageData))
            {
                Resources.AddImage(null, ImgStream, FlxConsts.NoTransparentColor, false);
            }

            SaveProcSet(DataStream, XRef, true);
            SaveResourcesImgXObject(DataStream, XRef, Resources);

            EndDictionary(DataStream);
            WriteStream(DataStream, StreamContents);

            TIndirectRecord.SaveTrailer(DataStream);

            Resources.SaveObjects(DataStream, XRef);
        }
示例#2
0
文件: PdfForms.cs 项目: mwilian/demos
        private static void Saven0(TPdfStream DataStream, TXRefSection XRef, TPdfVisibleSignature VSig, int n0Id)
        {
            string StreamContents = "% DSBlank";

            XRef.SetObjectOffset(n0Id, DataStream);
            TIndirectRecord.SaveHeader(DataStream, n0Id);
            BeginDictionary(DataStream);
            WriteCommonXObject(DataStream, new RectangleF(0, 0, 100, 100), StreamContents);
            SaveProcSet(DataStream, XRef, false);
            EndDictionary(DataStream);
            EndDictionary(DataStream);
            WriteStream(DataStream, StreamContents);

            TIndirectRecord.SaveTrailer(DataStream);
        }
示例#3
0
文件: PdfForms.cs 项目: mwilian/demos
        internal override void SaveToStream(TPdfStream DataStream, TXRefSection XRef, TPageInfo ParentPage)
        {
            BeginSaveToStream(DataStream, XRef);

            //Annot
            SaveKey(DataStream, TPdfToken.TypeName, TPdfTokens.GetString(TPdfToken.AnnotName));             //Annots and Fields mix their dictionaries. See "Digital Signature Appearances" to see why annots are required even in non visible sigs.
            SaveKey(DataStream, TPdfToken.SubtypeName, TPdfTokens.GetString(TPdfToken.WidgetName));

            RectangleF           Rect = new RectangleF(0, 0, 0, 0);
            TPdfVisibleSignature VSig = Signature as TPdfVisibleSignature;

            int APId = -1;

            if (VSig != null)
            {
                Rect = VSig.Rect;
                APId = SaveAPRef(DataStream, XRef);
            }

            SaveKey(DataStream, TPdfToken.RectName,
                    TPdfTokens.GetString(TPdfToken.OpenArray) +
                    String.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3}", Rect.Left, Rect.Top, Rect.Right, Rect.Bottom) +
                    TPdfTokens.GetString(TPdfToken.CloseArray)
                    );

            SaveKey(DataStream, TPdfToken.PName, TIndirectRecord.GetCallObj(ParentPage.Id));
            SaveKey(DataStream, TPdfToken.FName, 132);              //bits 3 and 8

            //Field
            SaveKey(DataStream, TPdfToken.FTName, TPdfTokens.GetString(TPdfToken.SigName));
            if (Signature.Name != null)
            {
                SaveUnicodeKey(DataStream, TPdfToken.TName, Signature.Name);
            }
            SaveKey(DataStream, TPdfToken.FfName, 1);

            XRef.SetObjectOffset(GetSigDictionaryId(DataStream, XRef), DataStream);
            SaveKey(DataStream, TPdfToken.VName, TIndirectRecord.GetCallObj(SigDictionaryId));

            EndSaveToStream(DataStream, XRef);

            if (VSig != null)
            {
                SaveAPObj(DataStream, XRef, APId, VSig);
            }

            SaveSigDictionary(DataStream, XRef, SigDictionaryId);
        }
示例#4
0
文件: PdfForms.cs 项目: mwilian/demos
        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);
        }
示例#5
0
文件: PdfForms.cs 项目: mwilian/demos
        private static void SaveFRM(TPdfStream DataStream, TXRefSection XRef, TPdfVisibleSignature VSig, int FRMId)
        {
            string StreamContents = "q 1 0 0 1 0 0 cm /n0 Do Q" + TPdfTokens.NewLine + "q 1 0 0 1 0 0 cm /n2 Do Q";

            XRef.SetObjectOffset(FRMId, DataStream);
            TIndirectRecord.SaveHeader(DataStream, FRMId);
            BeginDictionary(DataStream);
            WriteCommonXObject(DataStream, VSig.Rect, StreamContents);
            int n0Id = XRef.GetNewObject(DataStream);
            int n2Id = XRef.GetNewObject(DataStream);

            SaveProcSet(DataStream, XRef, false);
            SaveResourcesSecondXObject(DataStream, n0Id, n2Id);
            EndDictionary(DataStream);
            WriteStream(DataStream, StreamContents);

            TIndirectRecord.SaveTrailer(DataStream);

            Saven0(DataStream, XRef, VSig, n0Id);
            Saven2(DataStream, XRef, VSig, n2Id);
        }
示例#6
0
文件: PdfForms.cs 项目: mwilian/demos
        private static void SaveAPObj(TPdfStream DataStream, TXRefSection XRef, int APId, TPdfVisibleSignature VSig)
        {
            string StreamContents = "q 1 0 0 1 0 0 cm /FRM Do Q";

            //AP Object
            XRef.SetObjectOffset(APId, DataStream);
            TIndirectRecord.SaveHeader(DataStream, APId);
            BeginDictionary(DataStream);
            WriteCommonXObject(DataStream, VSig.Rect, StreamContents);
            int FRMId = XRef.GetNewObject(DataStream);

            SaveProcSet(DataStream, XRef, false);
            SaveResourcesFirstXObject(DataStream, XRef, FRMId);
            EndDictionary(DataStream);

            WriteStream(DataStream, StreamContents);

            TIndirectRecord.SaveTrailer(DataStream);

            SaveFRM(DataStream, XRef, VSig, FRMId);
        }