private void SaveDocMDP(TPdfStream DataStream, TXRefSection XRef)
{
BeginDictionary(DataStream);
SaveKey(DataStream, TPdfToken.TypeName, TPdfTokens.GetString(TPdfToken.SigRefName));
SaveKey(DataStream, TPdfToken.TransformMethodName, TPdfTokens.GetString(TPdfToken.DocMDPName));
SaveTransformParams(DataStream);
SaveKey(DataStream, TPdfToken.DigestMethodName, TPdfTokens.GetString(TPdfToken.MD5Name));
//This is a small hack. We don't have an object model of the pdf file able to compute the object hash,
//and it is not needed anyway for Acrobat >=7 (and <6 does not allow MDP anyway).
//But we need to write something here, or acrobat will complain the document is not PDF/SigQ complaint.
byte[] MDPHash = new byte[16];
string MDPHashStr = PdfConv.ToHexString(MDPHash, true);
Write(DataStream, TPdfTokens.GetString(TPdfToken.DigestValueName));
long StartMDPHash = DataStream.Position;
Write(DataStream, MDPHashStr);
string LocationString =
TPdfTokens.GetString(TPdfToken.OpenArray) +
String.Format(CultureInfo.InvariantCulture, "{0} {1}", StartMDPHash, MDPHashStr.Length) +
TPdfTokens.GetString(TPdfToken.CloseArray);
SaveKey(DataStream, TPdfToken.DigestLocationName, LocationString);
EndDictionary(DataStream);
}
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;
}
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);
}
internal string GetDestStr(TPdfDestination Dest)
{
int PageId = PageTree.GetPageId(Dest.PageNumber);
string PageStr = TIndirectRecord.GetCallObj(PageId);
switch (Dest.ZoomOptions)
{
case TZoomOptions.Fit:
return
(TPdfTokens.GetString(TPdfToken.OpenArray) +
PageStr + TPdfTokens.GetString(TPdfToken.FitName) +
TPdfTokens.GetString(TPdfToken.CloseArray));
case TZoomOptions.FitH:
return
(TPdfTokens.GetString(TPdfToken.OpenArray) +
PageStr + TPdfTokens.GetString(TPdfToken.FitHName) +
TPdfTokens.GetString(TPdfToken.CloseArray));
case TZoomOptions.FitV:
return
(TPdfTokens.GetString(TPdfToken.OpenArray) +
PageStr + TPdfTokens.GetString(TPdfToken.FitVName) +
TPdfTokens.GetString(TPdfToken.CloseArray));
}
return
(TPdfTokens.GetString(TPdfToken.OpenArray) +
PageStr + TPdfTokens.GetString(TPdfToken.XYZName) +
TPdfTokens.GetString(TPdfToken.CloseArray));
}
internal string GetCallArray(TPdfStream DataStream, TXRefSection XRef, bool OnlySignatures)
{
StringBuilder sb = new StringBuilder();
int aCount = Count;
for (int i = 0; i < aCount; i++)
{
int id = Fields[i].GetId(DataStream, XRef, OnlySignatures);
if (id < 0)
{
continue;
}
if (sb.Length > 0)
{
sb.Append(" ");
}
sb.Append(TIndirectRecord.GetCallObj(id));
}
if (sb.Length == 0)
{
return(String.Empty);
}
if (OnlySignatures)
{
return(sb.ToString());
}
return(TPdfTokens.GetString(TPdfToken.OpenArray) + sb.ToString()
+ TPdfTokens.GetString(TPdfToken.CloseArray));
}
private void SavePatterns(TPdfStream DataStream, TXRefSection XRef)
{
int HatchCount = HatchPatterns.Count;
int ImageTextureCount = ImageTexturePatterns.Count;
int GradientCount = GradientPatterns.Count;
if (HatchCount + GradientCount + ImageTextureCount <= 0) return;
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.PatternName));
TDictionaryRecord.BeginDictionary(DataStream);
for (int i = 0; i < HatchCount; i++)
{
HatchPatterns[i].WritePattern(DataStream, XRef);
}
for (int i = 0; i < ImageTextureCount; i++)
{
ImageTexturePatterns[i].WritePattern(DataStream, XRef);
}
for (int i = 0; i < GradientCount; i++)
{
GradientPatterns[i].WritePattern(DataStream, XRef);
}
TDictionaryRecord.EndDictionary(DataStream);
if (HatchCount <= 0) return;
//Pattern color space
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.ColorSpaceName));
TDictionaryRecord.BeginDictionary(DataStream);
PatternColorSpaceId = TPdfHatch.WriteColorSpace(DataStream, XRef);
TDictionaryRecord.EndDictionary(DataStream);
}
private void SaveReferenceDict(TPdfStream DataStream, TXRefSection XRef)
{
Write(DataStream, TPdfTokens.GetString(TPdfToken.ReferenceName));
Write(DataStream, TPdfTokens.GetString(TPdfToken.OpenArray));
SaveDocMDP(DataStream, XRef);
SaveFieldMDP(DataStream, XRef);
Write(DataStream, TPdfTokens.GetString(TPdfToken.CloseArray));
}
private static void SaveResourcesFirstXObject(TPdfStream DataStream, TXRefSection XRef, int FRMId)
{
Write(DataStream, TPdfTokens.GetString(TPdfToken.XObjectName));
BeginDictionary(DataStream);
SaveKey(DataStream, TPdfToken.FRMName, TIndirectRecord.GetCallObj(FRMId));
EndDictionary(DataStream);
EndDictionary(DataStream);
}
private static void SaveResourcesSecondXObject(TPdfStream DataStream, int n0Id, int n2Id)
{
Write(DataStream, TPdfTokens.GetString(TPdfToken.XObjectName));
BeginDictionary(DataStream);
SaveKey(DataStream, TPdfToken.n0Name, TIndirectRecord.GetCallObj(n0Id));
SaveKey(DataStream, TPdfToken.n2Name, TIndirectRecord.GetCallObj(n2Id));
EndDictionary(DataStream);
EndDictionary(DataStream);
}
private static void WriteCommonXObject(TPdfStream DataStream, RectangleF Rect, string StreamContents)
{
SaveKey(DataStream, TPdfToken.LengthName, StreamContents.Length);
SaveKey(DataStream, TPdfToken.TypeName, TPdfTokens.GetString(TPdfToken.XObjectName));
SaveKey(DataStream, TPdfToken.SubtypeName, TPdfTokens.GetString(TPdfToken.FormName));
SaveKey(DataStream, TPdfToken.FormTypeName, 1);
SaveKey(DataStream, TPdfToken.MatrixName, "[1.0 0.0 0.0 1.0 0.0 0.0]"); //Standard drawing matrix
SaveKey(DataStream, TPdfToken.BBoxName, PdfConv.ToRectangleWH(new RectangleF(0, 0, Rect.Width, Rect.Height), true));
}
public static void WriteColorSpaceObject(TPdfStream DataStream, TXRefSection XRef, int ColorSpaceId)
{
XRef.SetObjectOffset(ColorSpaceId, DataStream);
TIndirectRecord.SaveHeader(DataStream, ColorSpaceId);
TPdfBaseRecord.Write(DataStream, TPdfTokens.GetString(TPdfToken.OpenArray));
TDictionaryRecord.SaveKey(DataStream, TPdfToken.PatternName, TPdfTokens.GetString(TPdfToken.DeviceRGBName));
TPdfBaseRecord.Write(DataStream, TPdfTokens.GetString(TPdfToken.CloseArray));
TIndirectRecord.SaveTrailer(DataStream);
}
private void SaveKids(TPdfStream DataStream, TXRefSection XRef)
{
WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.KidsName) + " " + TPdfTokens.GetString(TPdfToken.OpenArray));
for (int i = 0; i < FList.Count; i++)
{
TIndirectRecord.CallObj(DataStream, FList[i].Id);
}
WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.CloseArray));
}
private void SaveTransformParams(TPdfStream DataStream)
{
Write(DataStream, TPdfTokens.GetString(TPdfToken.TransformParamsName));
BeginDictionary(DataStream);
SaveKey(DataStream, TPdfToken.TypeName, TPdfTokens.GetString(TPdfToken.TransformParamsName));
SaveKey(DataStream, TPdfToken.PName, Signature.AllowedChangesValue);
SaveKey(DataStream, TPdfToken.VName, TPdfTokens.GetString(TPdfToken.V1_2Name));
EndDictionary(DataStream);
}
public static int WriteColorSpace(TPdfStream DataStream, TXRefSection XRef)
{
int Result = XRef.GetNewObject(DataStream);
TPdfBaseRecord.Write(DataStream, TPdfTokens.GetString(TPdfToken.PatternColorSpacePrefix) + " ");
TIndirectRecord.CallObj(DataStream, Result);
return(Result);
}
public void WriteImage(TPdfStream DataStream, TXRefSection XRef)
{
TPdfBaseRecord.Write(DataStream, TPdfTokens.GetString(TPdfToken.ImgPrefix) + Id.ToString(CultureInfo.InvariantCulture) + " ");
ImgObjId = XRef.GetNewObject(DataStream);
TIndirectRecord.CallObj(DataStream, ImgObjId);
if (FSMask != null)
{
SMaskId = XRef.GetNewObject(DataStream);
}
}
internal TLinkAnnot(real ax1, real ay1, real aWidth, real aHeight, string URL) :
base(ax1, ay1, aWidth, aHeight)
{
//only 7-bits allowed.
byte[] bt = TPdfStringRecord.EscapeString(Encoding.ASCII.GetBytes(URL));
FURL = TPdfTokens.GetString(TPdfToken.OpenString) +
Encoding.ASCII.GetString(bt, 0, bt.Length) +
TPdfTokens.GetString(TPdfToken.CloseString);
}
internal override void SaveToStream(TPdfStream DataStream, TXRefSection XRef)
{
BeginSaveToStream(DataStream, XRef);
SaveKey(DataStream, TPdfToken.SubtypeName, TPdfTokens.GetString(TPdfToken.LinkName));
SaveKey(DataStream, TPdfToken.AName, TIndirectRecord.GetCallObj(ActionId));
SaveKey(DataStream, TPdfToken.BorderName, TPdfTokens.GetString(TPdfToken.Border0));
EndSaveToStream(DataStream, XRef);
SaveAction(DataStream, XRef);
}
private static bool IsStandardFont(String aFontName)
{
aFontName = aFontName.Replace(" ", String.Empty);
return
(String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StArial), StringComparison.CurrentCultureIgnoreCase) ||
String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StCourier), StringComparison.CurrentCultureIgnoreCase) ||
String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StCourierNew), StringComparison.CurrentCultureIgnoreCase) ||
String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StMicrosoftSansSerif), StringComparison.CurrentCultureIgnoreCase) ||
String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StMicrosoftSerif), StringComparison.CurrentCultureIgnoreCase) ||
String.Equals(aFontName, TPdfTokens.GetString(TPdfToken.StTimesNewRoman), StringComparison.CurrentCultureIgnoreCase));
}
private static int SaveAPRef(TPdfStream DataStream, TXRefSection XRef)
{
//AP call
int APId = XRef.GetNewObject(DataStream);
Write(DataStream, TPdfTokens.GetString(TPdfToken.APName));
BeginDictionary(DataStream);
SaveKey(DataStream, TPdfToken.NName, TIndirectRecord.GetCallObj(APId));
EndDictionary(DataStream);
return(APId);
}
private void WriteToUnicodeData(TPdfStream DataStream)
{
string s = TPdfTokens.GetString(TPdfToken.ToUnicodeData).Replace("\r", "");
TPdfBaseRecord.WriteLine(DataStream, s);
TPdfBaseRecord.WriteLine(DataStream, ToUnicodeData.GetData());
s = TPdfTokens.GetString(TPdfToken.ToUnicodeData2).Replace("\r", "");
TPdfBaseRecord.WriteLine(DataStream, s);
}
private static void WriteSimpleString(TPdfStream DataStream, string Text, TPdfFont aFont, string EndNewText)
{
if (Text == null || Text.Length == 0)
{
return;
}
Write(DataStream, TPdfTokens.GetString(TPdfToken.OpenString));
UnicodeWrite(DataStream, Text, aFont);
Write(DataStream, TPdfTokens.GetString(TPdfToken.CloseString));
TPdfBaseRecord.WriteLine(DataStream, EndNewText);
}
internal byte[] GetByteRange(TPdfStream DataStream)
{
long cut = DataStream.SignPosition;
long endcut = cut + PKCSSize;
string s = TPdfTokens.GetString(TPdfToken.ByteRangeName) +
TPdfTokens.GetString(TPdfToken.OpenArray) +
String.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3}", 0, cut, endcut, DataStream.Length - endcut) +
TPdfTokens.GetString(TPdfToken.CloseArray);
return(Coder.GetBytes(s));
}
private string GetCoords()
{
StringBuilder Result = new StringBuilder();
Result.Append(TPdfTokens.GetString(TPdfToken.OpenArray));
Result.Append(PdfConv.CoordsToString(RotatedCoords.Left)); Result.Append(" ");
Result.Append(PdfConv.CoordsToString(RotatedCoords.Top)); Result.Append(" ");
Result.Append(PdfConv.CoordsToString(RotatedCoords.Right)); Result.Append(" ");
Result.Append(PdfConv.CoordsToString(RotatedCoords.Bottom));
Result.Append(TPdfTokens.GetString(TPdfToken.CloseArray));
return(Result.ToString());
}
private void SaveGStates(TPdfStream DataStream, TXRefSection XRef)
{
int aCount = GStates.Count;
if (aCount <= 0) return;
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.ExtGStateName));
TDictionaryRecord.BeginDictionary(DataStream);
for (int i = 0; i < aCount; i++)
{
GStates[i].WriteGState(DataStream, XRef);
}
TDictionaryRecord.EndDictionary(DataStream);
}
private void SaveAction(TPdfStream DataStream, TXRefSection XRef)
{
XRef.SetObjectOffset(ActionId, DataStream);
TIndirectRecord.SaveHeader(DataStream, ActionId);
BeginDictionary(DataStream);
TPdfBaseRecord.Write(DataStream,
String.Format(CultureInfo.InvariantCulture, TPdfTokens.GetString(TPdfToken.LinkData), FURL));
EndDictionary(DataStream);
TIndirectRecord.SaveTrailer(DataStream);
}
internal static void SaveToStream(TPdfStream DataStream)
{
if (DataStream.HasSignature) //Our sign algorithm requires Reader 7 or newer.
{
TPdfHeaderRecord.SaveToStream(DataStream, TPdfTokens.GetString(TPdfToken.Header16));
}
else
{
TPdfHeaderRecord.SaveToStream(DataStream, TPdfTokens.GetString(TPdfToken.Header14));
}
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.HeaderComment));
}
private byte[] GetPatternDef()
{
string s = String.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3} {4} {5} cm",
ImgWidth,
0, 0,
ImgHeight,
0,
0);
s += " " + TPdfTokens.GetString(TPdfToken.ImgPrefix) + "0 " + TPdfTokens.GetString(TPdfToken.CommandDo);
return(Encoding.UTF8.GetBytes(s));
}
public override void WriteFontObject(TPdfStream DataStream, TXRefSection XRef)
{
XRef.SetObjectOffset(FontObjId, DataStream);
TIndirectRecord.SaveHeader(DataStream, FontObjId);
TDictionaryRecord.BeginDictionary(DataStream);
TDictionaryRecord.SaveKey(DataStream, TPdfToken.TypeName, TPdfTokens.GetString(TPdfToken.FontName));
TDictionaryRecord.SaveKey(DataStream, TPdfToken.SubtypeName, TPdfTokens.GetString(TPdfToken.Type1Name));
TDictionaryRecord.SaveKey(DataStream, TPdfToken.BaseFontName, GetFontName());
TDictionaryRecord.SaveKey(DataStream, TPdfToken.EncodingName, EncodingType());
TDictionaryRecord.EndDictionary(DataStream);
TIndirectRecord.SaveTrailer(DataStream);
}
public void Select(TPdfStream DataStream, real FontSize, ref string LastFont)
{
UsedInDoc = true;
string NewFont = TPdfTokens.GetString(TPdfToken.FontPrefix) + Id.ToString(CultureInfo.InvariantCulture) + " " +
PdfConv.CoordsToString(FontSize) + " " + TPdfTokens.GetString(TPdfToken.CommandFont);
if (LastFont == NewFont)
{
return;
}
LastFont = NewFont;
TPdfBaseRecord.WriteLine(DataStream, NewFont);
}
private string GetFontName()
{
string Result = "/" + FFontName;
//Times new roman fonts are differently named. We have italic instead of oblique and -Roman for normal.
if (String.Compare(Result, 1, TPdfTokens.GetString(TPdfToken.PsTimes), 0, Result.Length, StringComparison.CurrentCulture) == 0)
{
if ((FFontStyle & FontStyle.Italic) != 0)
{
if ((FFontStyle & FontStyle.Bold) != 0)
{
Result += TPdfTokens.GetString(TPdfToken.PsBoldItalic);
}
else
{
Result += TPdfTokens.GetString(TPdfToken.PsItalic);
}
}
else
if ((FFontStyle & FontStyle.Bold) != 0)
{
Result += TPdfTokens.GetString(TPdfToken.PsBold);
}
else
{
Result += TPdfTokens.GetString(TPdfToken.PsRoman);
}
}
else //Not times.
{
if ((FFontStyle & FontStyle.Italic) != 0)
{
if ((FFontStyle & FontStyle.Bold) != 0)
{
Result += TPdfTokens.GetString(TPdfToken.PsBoldOblique);
}
else
{
Result += TPdfTokens.GetString(TPdfToken.PsOblique);
}
}
else
if ((FFontStyle & FontStyle.Bold) != 0)
{
Result += TPdfTokens.GetString(TPdfToken.PsBold);
}
}
return(Result);
}
