/// <summary>
/// Compiles state machine for positioning feature and saves state machine to <paramref name="positioning"/> appendix.
/// </summary>
/// <param name="typeface">Glyph typeface in which look for feature.</param>
/// <param name="scriptId">ID of script in which look for feature.</param>
/// <param name="languageId">ID of language in which look for feature.</param>
/// <param name="featureId">ID of feature to look up.</param>
/// <param name="positioning">Positioning appendix in which will be compiled state machine stored.</param>
/// <param name="glyphClasses">Glyph classes appendix for use by positioning appendix.</param>
/// <param name="availableGlyphs">Which glyphs should be restricted in state machine.</param>
/// <param name="emSize">Requested em size.</param>
/// <returns>All used glyphs during compilation. Can add additional glyphs to availableGlyphs.</returns>
public virtual IEnumerable <ushort> CompileFeature(GlyphTypeface typeface, uint scriptId, uint languageId, uint featureId, PositioningAppendix positioning, GlyphClassesAppendix glyphClasses, IEnumerable <ushort> availableGlyphs, double emSize)
{
StateMachine machine = GetOrCompile(_gposParser, new PositioningCompiler(), typeface, scriptId, languageId, featureId);
machine = new StateMachineOptimizer().Optimize(machine);
machine = new StateMachineNormalizer().Normalize(machine, availableGlyphs);
this.CompilePositioningAppendixFromMachine(typeface, featureId, positioning, glyphClasses, emSize, machine);
return(machine.GetGeneratedGlyphIds());
}
/// <summary>
/// Compiles state machine for substitution feature and saves state machine to <paramref name="substitution"/> appendix.
/// </summary>
/// <param name="typeface">Glyph typeface in which look for feature.</param>
/// <param name="scriptId">ID of script in which look for feature.</param>
/// <param name="languageId">ID of language in which look for feature.</param>
/// <param name="featureId">ID of feature to look up.</param>
/// <param name="substitution">Substitution appendix in which will be compiled state machine stored.</param>
/// <param name="glyphClasses">Glyph classes appendix for use by substitution appendix.</param>
/// <param name="availableGlyphs">Which glyphs should be restricted in state machine.</param>
/// <returns>All used glyphs during compilation. Can add additional glyphs to availableGlyphs.</returns>
public virtual IEnumerable <ushort> CompileFeature(GlyphTypeface typeface, uint scriptId, uint languageId, uint featureId, SubstitutionAppendix substitution, GlyphClassesAppendix glyphClasses, IEnumerable <ushort> availableGlyphs)
{
StateMachine machine = GetOrCompile(_gsubParser, new SubstitutionCompiler(), typeface, scriptId, languageId, featureId);
machine = new StateMachineOptimizer().Optimize(machine);
machine = new StateMachineNormalizer().Normalize(machine, availableGlyphs);
this.CompileSubstitutionAppendingFromMachine(featureId, substitution, glyphClasses, machine);
return(machine.GetGeneratedGlyphIds());
}
