public static CoverageTable CreateFrom(BinaryReader reader, long beginAt)
{
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
//---------------------------------------------------
var coverageTable = new CoverageTable();
//1. format
switch (coverageTable._format = reader.ReadUInt16())
{
default:
throw new NotSupportedException();
case 1:
{
//CoverageFormat1 table: Individual glyph indices
ushort glyphCount = reader.ReadUInt16();
//GlyphID GlyphArray[GlyphCount] Array of GlyphIDs-in numerical order ***
ushort[] orderedGlyphIdList = new ushort[glyphCount];
for (int i = 0; i < glyphCount; ++i)
{
orderedGlyphIdList[i] = reader.ReadUInt16();
}
coverageTable.orderedGlyphIdList = orderedGlyphIdList;
} break;
case 2:
{
//CoverageFormat2 table: Range of glyphs
ushort rangeCount = reader.ReadUInt16();
RangeRecord[] ranges = new RangeRecord[rangeCount];
for (int i = 0; i < rangeCount; ++i)
{
ranges[i] = new RangeRecord(
reader.ReadUInt16(),
reader.ReadUInt16(),
reader.ReadUInt16());
}
coverageTable.ranges = ranges;
}
break;
}
return coverageTable;
}
public static CoverageTable[] CreateMultipleCoverageTables(long initPos, short[] offsets, BinaryReader reader)
{
int j = offsets.Length;
CoverageTable[] results = new CoverageTable[j];
for (int i = 0; i < j; ++i)
{
results[i] = CoverageTable.CreateFrom(reader, initPos + offsets[i]);
}
return results;
}
