public override void Process(TrueTypeFont font)
{
var reader = new TrueTypeReader(Data);
Version = reader.ReadUShort();
NumberOfTables = reader.ReadUShort();
Subtables = new List <KerningSubtableBase>(NumberOfTables);
for (var t = 0; t < NumberOfTables; t++)
{
var subtableOffset = reader.Position;
var version = reader.ReadUShort();
var length = reader.ReadUShort();
var coverage = reader.ReadUShort();
var subtableType = ImplementationTypeAttribute.GetTypeFromEnumValue(typeof(KerningSubtableType), GetSubtypeFromCoverage(coverage));
var subtable = Activator.CreateInstance(subtableType) as KerningSubtableBase;
subtable.ReadData(reader, (uint)subtableOffset, length);
Subtables.Add(subtable);
}
ProcessSubtables(font);
reader.Dispose();
}
public TrueTypeFont(Stream fontStream)
{
var reader = new TrueTypeReader(fontStream);
Version = GetVersion(reader);
this.NumberOfTables = reader.ReadUShort();
this.SearchRange = reader.ReadUShort();
this.EntrySelector = reader.ReadUShort();
this.RangeShift = reader.ReadUShort();
var tableEntries = new List <FontTableHeaderEntry>();
for (var i = 0; i < this.NumberOfTables; i++)
{
tableEntries.Add(new FontTableHeaderEntry()
{
Type = (FontTableType)reader.ReadULong(),
Checksum = reader.ReadULong(),
Offset = reader.ReadULong(),
Length = reader.ReadULong()
});
}
Tables = new List <FontTableBase>(this.NumberOfTables);
foreach (var entry in tableEntries)
{
var tableType = ImplementationTypeAttribute.GetTypeFromEnumValue(typeof(FontTableType), entry.Type);
if (tableType == null)
{
continue;
}
var table = Activator.CreateInstance(tableType) as FontTableBase;
table.HeaderEntry = entry;
table.Checksum = entry.Checksum;
table.ReadData(reader, entry.Offset, entry.Length);
Tables.Add(table);
}
reader.Dispose();
ProcessTables();
}
public override void Process(TrueTypeFont font)
{
var reader = new TrueTypeReader(Data);
Version = reader.ReadUShort();
EncodingTableCount = reader.ReadUShort();
EncodingTables = new List <EncodingTableEntry>(EncodingTableCount);
for (var i = 0; i < EncodingTableCount; i++)
{
EncodingTables.Add(new EncodingTableEntry()
{
Platform = (Platform)reader.ReadUShort(),
Encoding = (Encoding)reader.ReadUShort(),
Offset = reader.ReadULong()
});
}
foreach (var encodingTable in EncodingTables)
{
reader.Seek(encodingTable.Offset);
var format = (CmapSubtableType)reader.ReadUShort();
var length = reader.ReadUShort();
var subtableProcessorType = ImplementationTypeAttribute.GetTypeFromEnumValue(typeof(CmapSubtableType), format);
if (subtableProcessorType == null)
{
continue;
}
var subtableProcessor = Activator.CreateInstance(subtableProcessorType) as CharacterToGlyphSubtableBase;
subtableProcessor.EncodingTableEntry = encodingTable;
subtableProcessor.ReadData(reader, encodingTable.Offset, length);
Subtables.Add(subtableProcessor);
}
ProcessSubtables(font);
reader.Dispose();
}