private byte[] BuildNameTable()
{
using (var bos = new MemoryStream())
using (var output = new BinaryWriter(bos))
{
NamingTable name = ttf.Naming;
if (name == null || keepTables != null && !keepTables.Contains("name", StringComparer.Ordinal))
{
return(null);
}
List <NameRecord> nameRecords = name.NameRecords;
int numRecords = (int)nameRecords.Count(p => ShouldCopyNameRecord(p));
WriteUint16(output, 0);
WriteUint16(output, numRecords);
WriteUint16(output, 2 * 3 + 2 * 6 * numRecords);
if (numRecords == 0)
{
return(null);
}
byte[][] names = new byte[numRecords][];
int j = 0;
foreach (NameRecord record in nameRecords)
{
if (ShouldCopyNameRecord(record))
{
int platform = record.PlatformId;
int encoding = record.PlatformEncodingId;
var charset = Charset.ISO88591;
if (platform == CmapTable.PLATFORM_WINDOWS &&
encoding == CmapTable.ENCODING_WIN_UNICODE_BMP)
{
charset = Charset.UTF16BE;
}
else if (platform == 2) // ISO [deprecated]=
{
if (encoding == 0) // 7-bit ASCII
{
charset = Charset.ASCII;
}
else if (encoding == 1) // ISO 10646=
{
//not sure input this input correct??
charset = Charset.UTF16BE;
}
}
string value = record.Text;
if (record.NameId == 6 && prefix != null)
{
value = prefix + value;
}
names[j] = charset.GetBytes(value);
j++;
}
}
int offset = 0;
j = 0;
foreach (NameRecord nr in nameRecords)
{
if (ShouldCopyNameRecord(nr))
{
WriteUint16(output, nr.PlatformId);
WriteUint16(output, nr.PlatformEncodingId);
WriteUint16(output, nr.LanguageId);
WriteUint16(output, nr.NameId);
WriteUint16(output, names[j].Length);
WriteUint16(output, offset);
offset += names[j].Length;
j++;
}
}
for (int i = 0; i < numRecords; i++)
{
output.Write(names[i]);
}
output.Flush();
return(bos.ToArray());
}
}
private TTFTable ReadTableDirectory(TrueTypeFont font, TTFDataStream raf)
{
TTFTable table;
string tag = raf.ReadString(4);
switch (tag)
{
case CmapTable.TAG:
table = new CmapTable(font);
break;
case GlyphTable.TAG:
table = new GlyphTable(font);
break;
case HeaderTable.TAG:
table = new HeaderTable(font);
break;
case HorizontalHeaderTable.TAG:
table = new HorizontalHeaderTable(font);
break;
case HorizontalMetricsTable.TAG:
table = new HorizontalMetricsTable(font);
break;
case IndexToLocationTable.TAG:
table = new IndexToLocationTable(font);
break;
case MaximumProfileTable.TAG:
table = new MaximumProfileTable(font);
break;
case NamingTable.TAG:
table = new NamingTable(font);
break;
case OS2WindowsMetricsTable.TAG:
table = new OS2WindowsMetricsTable(font);
break;
case PostScriptTable.TAG:
table = new PostScriptTable(font);
break;
case DigitalSignatureTable.TAG:
table = new DigitalSignatureTable(font);
break;
case KerningTable.TAG:
table = new KerningTable(font);
break;
case VerticalHeaderTable.TAG:
table = new VerticalHeaderTable(font);
break;
case VerticalMetricsTable.TAG:
table = new VerticalMetricsTable(font);
break;
case VerticalOriginTable.TAG:
table = new VerticalOriginTable(font);
break;
case GlyphSubstitutionTable.TAG:
table = new GlyphSubstitutionTable(font);
break;
default:
table = ReadTable(font, tag);
break;
}
table.Tag = tag;
table.CheckSum = raf.ReadUnsignedInt();
table.Offset = raf.ReadUnsignedInt();
table.Length = raf.ReadUnsignedInt();
// skip tables with zero length (except glyf)
if (table.Length == 0 && !tag.Equals(GlyphTable.TAG, StringComparison.Ordinal))
{
return(null);
}
return(table);
}
