Class TtfGsubTable

Parsed OpenType "GSUB" table header and feature tag list. Exposes FeatureTags (e.g. "liga", "calt", "dlig") so callers can detect which substitution features are available. Full substitution lookup application is deferred to a future batch.

Inheritance

object

TtfTableBase

TtfGsubTable

Inherited Members

TtfTableBase.Tag

TtfTableBase.RawBytes

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: DRIT.Drawing.Font.Ttf.Tables

Assembly: DRIT.Drawing.dll

Syntax

public sealed class TtfGsubTable : TtfTableBase

Remarks

Ref: https://learn.microsoft.com/en-us/typography/opentype/spec/gsub

Fields

TableTag

The table tag for the GSUB table.

Declaration

public const string TableTag = "GSUB"

Field Value

Type	Description
string

Remarks

Ref: https://learn.microsoft.com/en-us/typography/opentype/spec/gsub

Properties

FeatureTags

Distinct, lexicographically sorted OpenType feature tags present in the GSUB table's FeatureList (e.g. "calt", "dlig", "liga", "rlig"). May be empty for fonts with a malformed or absent FeatureList.

Declaration

public IReadOnlyList<string> FeatureTags { get; }

Property Value

Type	Description
IReadOnlyList<string>

Remarks

Ref: https://learn.microsoft.com/en-us/typography/opentype/spec/gsub

Methods

Parse(byte[])

Parses the "GSUB" table from its raw bytes.

Declaration

public static TtfGsubTable Parse(byte[] rawBytes)

Parameters

Type	Name	Description
byte[]	rawBytes

Returns

Type	Description
TtfGsubTable

Remarks

Ref: https://learn.microsoft.com/en-us/typography/opentype/spec/gsub