private IGlyphTransformationTable ParseCoverageChainingSubstitutionTable(int subTableOffset, dynamic fontTable, LookupFlags lookupFlags)
{
var type = typeof(GlyphTypeface).Assembly.GetType("MS.Internal.Shaping.CoverageChainingSubtable");
dynamic table = new AccessPrivateWrapper(TypeExtensions.Instantiate(type, fontTable.Wrapped, subTableOffset));
dynamic contextualLookupTable = new AccessPrivateWrapper(table.ContextualLookups(fontTable.Wrapped));
return(new ChainingCoverageContextSubstitutionTable
{
LookbackCoverages = this.GetEnumerableFromInternalList(
() => table.BacktrackGlyphCount(fontTable.Wrapped),
i => (ICoverageTable)this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.BacktrackCoverage(fontTable.Wrapped, i)))).ToList(),
ContextCoverages = this.GetEnumerableFromInternalList(
() => table.InputGlyphCount(fontTable.Wrapped),
i => (ICoverageTable)this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.InputCoverage(fontTable.Wrapped, i)))).ToList(),
LookaheadCoverages = this.GetEnumerableFromInternalList(
() => table.LookaheadGlyphCount(fontTable.Wrapped),
i => (ICoverageTable)this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.LookaheadCoverage(fontTable.Wrapped, i)))).ToList(),
TransformationSets = this.GetEnumerableFromInternalList(
() => contextualLookupTable.recordCount,
i => new ContextTransformationSet
{
FirstGlyphIndex = contextualLookupTable.SequenceIndex(fontTable.Wrapped, i),
Transformations = this.GetTransformationTablesByLookupIndex(fontTable, contextualLookupTable.LookupIndex(fontTable.Wrapped, i))
}).ToList(),
LookupFlags = lookupFlags
});
}