//TODO: merge this to Typography
//from http://stackoverflow.com/questions/3633000/net-enumerate-winforms-font-styles
// https://www.microsoft.com/Typography/OTSpec/name.htm
public static InstalledFont GetFontDetails(string fontFilePath)
{
//TODO: review here
//merge to the Typography?
string fontName = string.Empty;
string fontSubFamily = string.Empty;
string strRet = string.Empty;
using (FileStream fs = new FileStream(fontFilePath, FileMode.Open, FileAccess.Read))
{
TT_OFFSET_TABLE ttOffsetTable = new TT_OFFSET_TABLE()
{
uMajorVersion = ReadUShort(fs),
uMinorVersion = ReadUShort(fs),
uNumOfTables = ReadUShort(fs),
uSearchRange = ReadUShort(fs),
uEntrySelector = ReadUShort(fs),
uRangeShift = ReadUShort(fs),
};
if (ttOffsetTable.uMajorVersion != 1 || ttOffsetTable.uMinorVersion != 0)
{
return(null);
}
TT_TABLE_DIRECTORY tblDir = new TT_TABLE_DIRECTORY();
bool found = false;
Encoding enc = Encoding.UTF8;
for (int i = 0; i <= ttOffsetTable.uNumOfTables; i++)
{
tblDir = new TT_TABLE_DIRECTORY();
tblDir.Initialize();
fs.Read(tblDir.szTag, 0, tblDir.szTag.Length);
tblDir.uCheckSum = ReadULong(fs);
tblDir.uOffset = ReadULong(fs);
tblDir.uLength = ReadULong(fs);
string s = enc.GetString(tblDir.szTag);
if (s.CompareTo("name") == 0)
{
found = true;
break;
}
}
if (!found)
{
return(null);
}
fs.Seek(tblDir.uOffset, SeekOrigin.Begin);
TT_NAME_TABLE_HEADER ttNTHeader = new TT_NAME_TABLE_HEADER
{
uFSelector = ReadUShort(fs),
uNRCount = ReadUShort(fs),
uStorageOffset = ReadUShort(fs)
};
TT_NAME_RECORD ttRecord = new TT_NAME_RECORD();
for (int j = 0; j <= ttNTHeader.uNRCount; j++)
{
ttRecord = new TT_NAME_RECORD()
{
uPlatformID = ReadUShort(fs),
uEncodingID = ReadUShort(fs),
uLanguageID = ReadUShort(fs),
uNameID = ReadUShort(fs),
uStringLength = ReadUShort(fs),
uStringOffset = ReadUShort(fs)
};
//if (ttRecord.uNameID > 2)
//{
//}
long nPos = fs.Position;
fs.Seek(tblDir.uOffset + ttRecord.uStringOffset + ttNTHeader.uStorageOffset, SeekOrigin.Begin);
byte[] buf = new byte[ttRecord.uStringLength];
fs.Read(buf, 0, ttRecord.uStringLength);
Encoding enc2;
if (ttRecord.uEncodingID == 3 || ttRecord.uEncodingID == 1)
{
enc2 = Encoding.BigEndianUnicode;
}
else
{
enc2 = Encoding.UTF8;
}
strRet = enc2.GetString(buf);
switch (ttRecord.uNameID)
{
case 1:
fontName = strRet;
break;
case 2:
fontSubFamily = strRet;
break;
default:
break;
}
fs.Seek(nPos, SeekOrigin.Begin);
}
return(new InstalledFont(fontName, fontSubFamily, fontFilePath));
}
}
static public FontFamily FromPath(string fontFilePath)
{
string FontName = string.Empty;
string FontSubFamily = string.Empty;
string encStr = "UTF-8";
string strRet = string.Empty;
using (FileStream fs = new FileStream(fontFilePath, FileMode.Open, FileAccess.Read))
{
TT_OFFSET_TABLE ttOffsetTable = new TT_OFFSET_TABLE()
{
uMajorVersion = ReadUShort(fs),
uMinorVersion = ReadUShort(fs),
uNumOfTables = ReadUShort(fs),
uSearchRange = ReadUShort(fs),
uEntrySelector = ReadUShort(fs),
uRangeShift = ReadUShort(fs),
};
TT_TABLE_DIRECTORY tblDir = new TT_TABLE_DIRECTORY();
bool found = false;
for (int i = 0; i <= ttOffsetTable.uNumOfTables; i++)
{
tblDir = new TT_TABLE_DIRECTORY();
tblDir.Initialize();
fs.Read(tblDir.szTag, 0, tblDir.szTag.Length);
tblDir.uCheckSum = ReadULong(fs);
tblDir.uOffset = ReadULong(fs);
tblDir.uLength = ReadULong(fs);
Encoding enc = Encoding.GetEncoding(encStr);
string s = enc.GetString(tblDir.szTag);
if (s.CompareTo("name") == 0)
{
found = true;
break;
}
}
if (!found)
{
return(null);
}
fs.Seek(tblDir.uOffset, SeekOrigin.Begin);
TT_NAME_TABLE_HEADER ttNTHeader = new TT_NAME_TABLE_HEADER
{
uFSelector = ReadUShort(fs),
uNRCount = ReadUShort(fs),
uStorageOffset = ReadUShort(fs)
};
TT_NAME_RECORD ttRecord = new TT_NAME_RECORD();
for (int j = 0; j <= ttNTHeader.uNRCount; j++)
{
ttRecord = new TT_NAME_RECORD()
{
uPlatformID = ReadUShort(fs),
uEncodingID = ReadUShort(fs),
uLanguageID = ReadUShort(fs),
uNameID = ReadUShort(fs),
uStringLength = ReadUShort(fs),
uStringOffset = ReadUShort(fs)
};
if (ttRecord.uNameID > 2)
{
break;
}
long nPos = fs.Position;
fs.Seek(tblDir.uOffset + ttRecord.uStringOffset + ttNTHeader.uStorageOffset, SeekOrigin.Begin);
byte[] buf = new byte[ttRecord.uStringLength];
fs.Read(buf, 0, ttRecord.uStringLength);
Encoding enc;
if (ttRecord.uEncodingID == 3 || ttRecord.uEncodingID == 1)
{
enc = Encoding.BigEndianUnicode;
}
else
{
enc = Encoding.UTF8;
}
strRet = enc.GetString(buf);
if (ttRecord.uNameID == 1)
{
FontName = strRet;
}
if (ttRecord.uNameID == 2)
{
FontSubFamily = strRet;
}
fs.Seek(nPos, SeekOrigin.Begin);
}
return(new FontFamily(FontName, FontSubFamily, fontFilePath));
}
}
static public FontFamily FromPath(string fontFilePath)
{
string FontName = string.Empty;
string FontSubFamily = string.Empty;
string encStr = "UTF-8";
string strRet = string.Empty;
using (FileStream fs = new FileStream(fontFilePath, FileMode.Open, FileAccess.Read))
{
TT_OFFSET_TABLE ttOffsetTable = new TT_OFFSET_TABLE()
{
uMajorVersion = ReadUShort(fs),
uMinorVersion = ReadUShort(fs),
uNumOfTables = ReadUShort(fs),
uSearchRange = ReadUShort(fs),
uEntrySelector = ReadUShort(fs),
uRangeShift = ReadUShort(fs),
};
TT_TABLE_DIRECTORY tblDir = new TT_TABLE_DIRECTORY();
bool found = false;
for (int i = 0; i <= ttOffsetTable.uNumOfTables; i++)
{
tblDir = new TT_TABLE_DIRECTORY();
tblDir.Initialize();
fs.Read(tblDir.szTag, 0, tblDir.szTag.Length);
tblDir.uCheckSum = ReadULong(fs);
tblDir.uOffset = ReadULong(fs);
tblDir.uLength = ReadULong(fs);
Encoding enc = Encoding.GetEncoding(encStr);
string s = enc.GetString(tblDir.szTag);
if (s.CompareTo("name") == 0)
{
found = true;
break;
}
}
if (!found) return null;
fs.Seek(tblDir.uOffset, SeekOrigin.Begin);
TT_NAME_TABLE_HEADER ttNTHeader = new TT_NAME_TABLE_HEADER
{
uFSelector = ReadUShort(fs),
uNRCount = ReadUShort(fs),
uStorageOffset = ReadUShort(fs)
};
TT_NAME_RECORD ttRecord = new TT_NAME_RECORD();
for (int j = 0; j <= ttNTHeader.uNRCount; j++)
{
ttRecord = new TT_NAME_RECORD()
{
uPlatformID = ReadUShort(fs),
uEncodingID = ReadUShort(fs),
uLanguageID = ReadUShort(fs),
uNameID = ReadUShort(fs),
uStringLength = ReadUShort(fs),
uStringOffset = ReadUShort(fs)
};
if (ttRecord.uNameID > 2) { break; }
long nPos = fs.Position;
fs.Seek(tblDir.uOffset + ttRecord.uStringOffset + ttNTHeader.uStorageOffset, SeekOrigin.Begin);
byte[] buf = new byte[ttRecord.uStringLength];
fs.Read(buf, 0, ttRecord.uStringLength);
Encoding enc;
if (ttRecord.uEncodingID == 3 || ttRecord.uEncodingID == 1)
{
enc = Encoding.BigEndianUnicode;
}
else
{
enc = Encoding.UTF8;
}
strRet = enc.GetString(buf);
if (ttRecord.uNameID == 1) { FontName = strRet; }
if (ttRecord.uNameID == 2) { FontSubFamily = strRet; }
fs.Seek(nPos, SeekOrigin.Begin);
}
return new FontFamily(FontName, FontSubFamily, fontFilePath);
}
}
