//--------------------------------------------------------------------------------------------------
internal bool Update(GlyphTypeface glyphTypeface, ICollection <ushort> glyphs, ref string finalFontName)
{
// Write font file to embed
var bytes = glyphTypeface.ComputeSubset(glyphs);
if (bytes?.Length > 0)
{
_FontStream.Add(bytes);
_FontStream.Attributes["Length1"] = bytes.Length;
Attributes["FontFile2"] = _FontStream;
finalFontName = $"AAAAAA+{finalFontName}";
_HasFontFile = true;
}
Attributes["FontName"] = $"/{finalFontName}";
Attributes["FontFamily"] = $"({glyphTypeface.FamilyNames[CultureInfo.GetCultureInfo("en-us")]})";
Attributes["FontWeight"] = $"{glyphTypeface.Weight.ToOpenTypeWeight()}";
Attributes["FontStretch"] = $"/{glyphTypeface.Stretch}";
// Set attributes
var flags = glyphTypeface.Symbol ? Flags.Symbolic : Flags.Nonsymbolic;
if (glyphTypeface.Style == FontStyles.Italic)
{
flags = flags.Added(Flags.Italic);
}
Attributes["Flags"] = (int)flags;
Attributes["FontBBox"] = new[]
{
// Left
-(glyphs.Max(glyph => glyphTypeface.LeftSideBearings[glyph]) * 1000.0).ToRoundedInt(),
// Bottom
-(glyphs.Max(glyph => glyphTypeface.DistancesFromHorizontalBaselineToBlackBoxBottom[glyph]) * 1000.0).ToRoundedInt(),
// Right
(glyphs.Max(glyph => (glyphTypeface.AdvanceWidths[glyph] + glyphTypeface.RightSideBearings[glyph]) * 1000.0)).ToRoundedInt(),
// Top
(glyphTypeface.Baseline * 1000.0).ToRoundedInt() // Top
};
Attributes["ItalicAngle"] = glyphTypeface.Style == FontStyles.Italic ? -75 : 0;
Attributes["Ascent"] = (glyphTypeface.Baseline * 1000.0).ToRoundedInt();
Attributes["Descent"] = ((glyphTypeface.Baseline - glyphTypeface.Height) * 1000.0).ToRoundedInt();
Attributes["CapHeight"] = (glyphTypeface.CapsHeight * 1000.0).ToRoundedInt();
Attributes["XHeight"] = (glyphTypeface.XHeight * 1000.0).ToRoundedInt();
// StemV seems to be not used.
// https://stackoverflow.com/questions/35485179/stemv-value-of-the-truetype-font
Attributes["StemV"] = 80;
Attributes["StemH"] = 80;
return(true);
}
private byte[] CreateSubsetData(GlyphTypeface glyphTypeface, IDictionary <int, ushort> cmap)
{
CheckEmbeddingRights(glyphTypeface);
List <ushort> glyphIndices = new List <ushort>(subsetCharacters.Count);
foreach (char ch in subsetCharacters)
{
ushort gid;
if (cmap.TryGetValue((int)ch, out gid))
{
glyphIndices.Add(gid);
}
}
return(glyphTypeface.ComputeSubset(glyphIndices));
}
public void CreateSubSet(string sourceText, Uri fontURI)
{
GlyphTypeface glyphTypeface = new GlyphTypeface(fontURI);
System.Collections.Generic.ICollection <ushort> Index = null;
Index = new System.Collections.Generic.List <ushort>();
Encoding e = Encoding.Unicode;
byte[] sourceTextBytes = e.GetBytes(sourceText);
char[] sourceTextChars = e.GetChars(sourceTextBytes);
int sourceTextCharVal = 0;
int glyphIndex = 0;
for (int sourceTextCharPos = 0; sourceTextCharPos <= sourceTextChars.GetUpperBound(0); sourceTextCharPos++)
{
try
{
sourceTextCharVal = Convert.ToInt32(sourceTextChars[sourceTextCharPos]);
glyphIndex = glyphTypeface.CharacterToGlyphMap[sourceTextCharVal];
Index.Add((ushort)glyphIndex);
}
catch
{
// character not in CharacterToGlyphMap!
}
}
byte[] filebytes = glyphTypeface.ComputeSubset(Index);
String fontPath = fontURI.AbsolutePath;
int start = fontPath.LastIndexOf("/") + 1;
int end = fontPath.LastIndexOf(".");
int length = end - start;
MessageBox.Show(fontPath.Substring(end));
using (FileStream fileStream = new FileStream("D:\\Users\\Henry\\Desktop\\Kleymissky_0283-sub.otf", FileMode.Create))
{
fileStream.Write(filebytes, 0, filebytes.Length);
}
}
