public bool AddFontStreamSource(IFontStreamSource src)
{
//preview data of font
try
{
using (Stream stream = src.ReadFontStream())
{
var reader = new OpenFontReader();
PreviewFontInfo previewFont = reader.ReadPreview(stream);
if (previewFont == null || string.IsNullOrEmpty(previewFont.Name))
{
//err!
return(false);
}
if (previewFont.IsFontCollection)
{
int mbCount = previewFont.MemberCount;
bool totalResult = true;
for (int i = 0; i < mbCount; ++i)
{
//extract and each members
if (!AddFontPreview(previewFont.GetMember(i), src.PathName))
{
totalResult = false;
}
}
return(totalResult);
}
else
{
return(AddFontPreview(previewFont, src.PathName));
}
}
}
catch (IOException)
{
//TODO review here again
return(false);
}
}
bool AddFontPreview(PreviewFontInfo previewFont, string srcPath)
{
_onlyFontNames[previewFont.Name] = true;
TypefaceStyle typefaceStyle = TypefaceStyle.Regular;
switch (previewFont.OS2TranslatedStyle)
{
case OpenFont.Extensions.TranslatedOS2FontStyle.BOLD:
typefaceStyle = TypefaceStyle.Bold;
break;
case OpenFont.Extensions.TranslatedOS2FontStyle.ITALIC:
case OpenFont.Extensions.TranslatedOS2FontStyle.OBLIQUE:
typefaceStyle = TypefaceStyle.Italic;
break;
case OpenFont.Extensions.TranslatedOS2FontStyle.REGULAR:
typefaceStyle = TypefaceStyle.Regular;
break;
case (OpenFont.Extensions.TranslatedOS2FontStyle.BOLD | OpenFont.Extensions.TranslatedOS2FontStyle.ITALIC):
typefaceStyle = TypefaceStyle.Bold | TypefaceStyle.Italic;
break;
}
//---------------
//some font subfam="Bold Italic" but OS2TranslatedStyle is only Italic
//so we should check the subfam name too!
string[] fontSubFamUpperCaseName_split = previewFont.SubFamilyName.ToUpper().Split(' ');
if (fontSubFamUpperCaseName_split.Length > 1)
{
if (typefaceStyle != (TypefaceStyle.Bold | TypefaceStyle.Italic))
{
//translate more
if ((fontSubFamUpperCaseName_split[0] == "BOLD" && fontSubFamUpperCaseName_split[1] == "ITALIC") ||
(fontSubFamUpperCaseName_split[0] == "ITALIC" && fontSubFamUpperCaseName_split[1] == "BOLD"))
{
typefaceStyle = TypefaceStyle.Bold | TypefaceStyle.Italic;
}
}
}
else
{
//=1
switch (fontSubFamUpperCaseName_split[0])
{
case "BOLD": typefaceStyle = TypefaceStyle.Bold; break;
case "ITALIC": typefaceStyle = TypefaceStyle.Italic; break;
}
}
return(Register(new InstalledTypeface(
previewFont.Name,
previewFont.SubFamilyName,
previewFont.TypographicFamilyName,
previewFont.TypographicSubFamilyName,
srcPath,
typefaceStyle,
previewFont.Weight)
{
ActualStreamOffset = previewFont.ActualStreamOffset
}));
}
public PreviewFontInfo ReadPreview(BinaryReader reader)
{
//read preview only
//WOFF File
//WOFFHeader File header with basic font type and version, along with offsets to metadata and private data blocks.
//TableDirectory Directory of font tables, indicating the original size, compressed size and location of each table within the WOFF file.
//FontTables The font data tables from the input sfnt font, compressed to reduce bandwidth requirements.
//ExtendedMetadata An optional block of extended metadata, represented in XML format and compressed for storage in the WOFF file.
//PrivateData An optional block of private data for the font designer, foundry, or vendor to use.
PreviewFontInfo fontPreviewInfo = null;
_header = ReadWOFFHeader(reader);
if (_header == null)
{
#if DEBUG
System.Diagnostics.Debug.WriteLine("can't read ");
#endif
return(null); //notify user too
}
//
WoffTableDirectory[] woffTableDirs = ReadTableDirectories(reader);
if (woffTableDirs == null)
{
return(null);
}
//try read each compressed table
if (DecompressHandler == null)
{
if (WoffDefaultZlibDecompressFunc.DecompressHandler != null)
{
DecompressHandler = WoffDefaultZlibDecompressFunc.DecompressHandler;
}
else
{
#if DEBUG
System.Diagnostics.Debug.WriteLine("no Zlib DecompressHandler ");
#endif
return(null); //notify user too
}
}
TableEntryCollection tableEntryCollection = CreateTableEntryCollection(woffTableDirs);
//for font preview, we may not need to extract
using (MemoryStream decompressStream = new MemoryStream())
{
if (Extract(reader, woffTableDirs, decompressStream))
{
using (ByteOrderSwappingBinaryReader reader2 = new ByteOrderSwappingBinaryReader(decompressStream))
{
decompressStream.Position = 0;
OpenFontReader openFontReader = new OpenFontReader();
PreviewFontInfo previewFontInfo = openFontReader.ReadPreviewFontInfo(tableEntryCollection, reader2);
if (previewFontInfo != null)
{
//add webfont info to this preview font
previewFontInfo.IsWebFont = true;
}
return(previewFontInfo);
}
}
}
return(fontPreviewInfo);
}
public bool AddFontStreamSource(IFontStreamSource src)
{
//preview data of font
try
{
using (Stream stream = src.ReadFontStream())
{
var reader = new OpenFontReader();
PreviewFontInfo previewFont = reader.ReadPreview(stream);
if (string.IsNullOrEmpty(previewFont.fontName))
{
//err!
return(false);
}
//if (previewFont.fontName.StartsWith("Bungee"))
//{
//}
TypefaceStyle typefaceStyle = TypefaceStyle.Regular;
switch (previewFont.OS2TranslatedStyle)
{
case OpenFont.Extensions.TranslatedOS2FontStyle.BOLD:
typefaceStyle = TypefaceStyle.Bold;
break;
case OpenFont.Extensions.TranslatedOS2FontStyle.ITALIC:
case OpenFont.Extensions.TranslatedOS2FontStyle.OBLIQUE:
typefaceStyle = TypefaceStyle.Italic;
break;
case OpenFont.Extensions.TranslatedOS2FontStyle.REGULAR:
typefaceStyle = TypefaceStyle.Regular;
break;
case (OpenFont.Extensions.TranslatedOS2FontStyle.BOLD | OpenFont.Extensions.TranslatedOS2FontStyle.ITALIC):
typefaceStyle = TypefaceStyle.Bold | TypefaceStyle.Italic;
break;
}
//---------------
//some font subfam="Bold Italic" but OS2TranslatedStyle is only Italic
//so we should check the subfam name too!
string[] fontSubFamUpperCaseName_split = previewFont.fontSubFamily.ToUpper().Split(' ');
if (fontSubFamUpperCaseName_split.Length > 1)
{
if (typefaceStyle != (TypefaceStyle.Bold | TypefaceStyle.Italic))
{
//translate more
if ((fontSubFamUpperCaseName_split[0] == "BOLD" && fontSubFamUpperCaseName_split[1] == "ITALIC") ||
(fontSubFamUpperCaseName_split[0] == "ITALIC" && fontSubFamUpperCaseName_split[1] == "BOLD"))
{
typefaceStyle = TypefaceStyle.Bold | TypefaceStyle.Italic;
}
}
}
else
{
//=1
switch (fontSubFamUpperCaseName_split[0])
{
case "BOLD": typefaceStyle = TypefaceStyle.Bold; break;
case "ITALIC": typefaceStyle = TypefaceStyle.Italic; break;
}
}
return(Register(new InstalledTypeface(previewFont.fontName, previewFont.fontSubFamily, src.PathName, typefaceStyle)));
}
}
catch (IOException)
{
//TODO review here again
return(false);
}
}
internal InstalledTypeface(PreviewFontInfo previewFontInfo, string fontPath)
: this(previewFontInfo.NameEntry,
previewFontInfo.OS2Table,
previewFontInfo.Languages, fontPath)
{
}
