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;
coverageTable.UpdateRangeOffsets();
}
break;
}
return(coverageTable);
}
public static CoverageTable CreateFrom(BinaryReader reader, long beginAt)
{
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
//---------------------------------------------------
var coverageTable = new CoverageTable();
//CoverageFormat1 table: Individual glyph indices
//Type Name Description
//uint16 CoverageFormat Format identifier-format = 1
//uint16 GlyphCount Number of glyphs in the GlyphArray
//uint16 GlyphArray[GlyphCount] Array of glyph IDs — in numerical order
//---------------------------------
//CoverageFormat2 table: Range of glyphs
//Type Name Description
//uint16 CoverageFormat Format identifier-format = 2
//uint16 RangeCount Number of RangeRecords
//struct RangeRecord[RangeCount] Array of glyph ranges — ordered by StartGlyphID.
//------------
//RangeRecord
//----------
//Type Name Description
//uint16 StartGlyphID First glyph ID in the range
//uint16 EndGlyphID Last glyph ID in the range
//uint16 StartCoverageIndex Coverage Index of first glyph ID in range
//----------
switch (coverageTable._format = reader.ReadUInt16())
{
default:
throw new NotSupportedException();
case 1: //CoverageFormat1 table: Individual glyph indices
{
ushort glyphCount = reader.ReadUInt16();
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;
coverageTable.UpdateRangeOffsets();
}
break;
}
return(coverageTable);
}
