public static Altsoft.PDFO.Font EmbedFont(Document doc, Stream fontstream, string encoding, bool embedFontFile, bool isVertical)
{
int num2;
PDFArray array2;
int num10;
Altsoft.FTMB.Font font1 = Altsoft.FTMB.Font.OpenFont(fontstream);
if ((font1.FontType != FontType.TrueTypeFontT) || (encoding != "Unicode"))
{
return(null);
}
TrueTypeFont font2 = (font1 as TrueTypeFont);
double num1 = ((double)font2.UnitsPerEm);
PDFDict dict1 = Library.CreateDict();
dict1["Type"] = Library.CreateName("Font");
dict1["Subtype"] = Library.CreateName("CIDFontType2");
dict1["BaseFont"] = Library.CreateName(font2.FontName);
PDFDict dict2 = Library.CreateDict();
dict2["Registry"] = Library.CreateString("Adobe");
dict2["Ordering"] = Library.CreateString("Identity");
dict2["Supplement"] = Library.CreateInteger(((long)0));
dict1["CIDSystemInfo"] = dict2;
TTEncoding encoding1 = null;
for (num2 = 0; ((num2 < font2.Encodings.Count) && (encoding1 == null)); num2 += 1)
{
encoding1 = ((TTEncoding)font2.Encodings[num2]);
if ((encoding1.platformID != 3) || ((encoding1.specificID != 1) && (encoding1.specificID != 0)))
{
encoding1 = null;
}
}
if (encoding1 == null)
{
return(null);
}
dict1["DW"] = Library.CreateInteger(((long)((((double)font2.GetWidth(encoding1.GetGID(0))) * 1000f) / num1)));
int num3 = 0;
int num4 = encoding1.GetLastCharCode(ref num3);
int num5 = encoding1.GetFirstCharCode(ref num3);
PDFArray array1 = Library.CreateArray(0);
if (num5 != 0)
{
array1.Add(Library.CreateInteger(((long)0)));
array2 = Library.CreateArray(0);
array2.Add(Library.CreateInteger(((long)((((double)font2.GetWidth(0, 3, 1)) * 1000f) / num1))));
array1.Add(array2);
}
array1.Add(Library.CreateInteger(((long)num5)));
array2 = Library.CreateArray(0);
array2.Add(Library.CreateInteger(((long)((((double)font2.GetWidth(num3)) * 1000f) / num1))));
int num6 = num5;
while ((num5 != num4))
{
num5 = encoding1.GetNextCharCode(num5, ref num3);
if (num5 != (num6 + 1))
{
array1.Add(array2);
array1.Add(Library.CreateInteger(((long)num5)));
array2 = Library.CreateArray(0);
}
num6 = num5;
array2.Add(Library.CreateInteger(((long)((((double)font2.GetWidth(num3)) * 1000f) / num1))));
}
array1.Add(array2);
dict1["W"] = array1;
Stream stream1 = new MemoryStream();
int num7 = encoding1.GetFirstCharCode(ref num3);
int num8 = 0;
while ((num8 < num7))
{
stream1.WriteByte(0);
stream1.WriteByte(0);
num8 += 1;
}
stream1.WriteByte(((byte)(num3 / 256)));
stream1.WriteByte(((byte)(num3 % 256)));
num8 += 1;
int num9 = encoding1.GetLastCharCode(ref num3);
do
{
num7 = encoding1.GetNextCharCode(num7, ref num3);
while ((num8 < num7))
{
stream1.WriteByte(0);
stream1.WriteByte(0);
num8 += 1;
}
stream1.WriteByte(((byte)(num3 / 256)));
stream1.WriteByte(((byte)(num3 % 256)));
num8 += 1;
}while ((num7 != num9));
stream1.Position = ((long)0);
PDFDict dict3 = Library.CreateDict();
dict3["Filter"] = Library.CreateName("FlateDecode");
PDFStream stream2 = Library.CreateStream(stream1, dict3);
dict1["CIDToGIDMap"] = doc.Indirects.New(stream2);
PDFDict dict4 = Library.CreateDict();
dict4["Type"] = Library.CreateName("FontDescriptor");
dict4["FontName"] = Library.CreateName(font2.FontName);
dict4["Flags"] = Library.CreateInteger(((long)4));
PDFArray array3 = Library.CreateArray(4);
for (num10 = 0; (num10 < 4); num10 += 1)
{
array3[num10] = Library.CreateInteger(((long)font2.FontBBox[num10]));
}
dict4["FontBBox"] = array3;
dict4["ItalicAngle"] = Library.CreateFixed(font2.ItalicAngle);
dict4["Ascent"] = Library.CreateInteger(((long)font2.FontBBox[3]));
dict4["Descent"] = Library.CreateInteger(((long)font2.FontBBox[1]));
dict4["CapHeight"] = Library.CreateInteger(((long)font2.FontBBox[3]));
dict4["StemV"] = Library.CreateInteger(((long)0));
if (((font2.EmbeddingRights == 0) || ((font2.EmbeddingRights & 8) != 0)) && embedFontFile)
{
font2.FontStream.Position = ((long)0);
dict3 = Library.CreateDict();
dict3["Filter"] = Library.CreateName("FlateDecode");
dict3["Length1"] = Library.CreateInteger(font2.FontStream.Length);
dict4["FontFile2"] = doc.Indirects.New(Library.CreateStream(font2.FontStream, dict3));
}
dict1["FontDescriptor"] = doc.Indirects.New(dict4);
PDFDict dict5 = Library.CreateDict();
dict5["Type"] = Library.CreateName("Font");
dict5["Subtype"] = Library.CreateName("Type0");
dict5["BaseFont"] = Library.CreateName(font2.FontName);
if (!isVertical)
{
dict5["Encoding"] = Library.CreateName("Identity-H");
}
else
{
dict5["Encoding"] = Library.CreateName("Identity-V");
}
PDFArray array4 = Library.CreateArray(1);
array4[0] = doc.Indirects.New(dict1);
dict5["DescendantFonts"] = array4;
return(new FontType0(dict5));
}