public static LookupType3Format1SubTable Load(BigEndianBinaryReader reader, long offset, LookupFlags lookupFlags)
{
// Cursive Attachment Positioning Format1.
// +--------------------+---------------------------------+------------------------------------------------------+
// | Type | Name | Description |
// +====================+=================================+======================================================+
// | uint16 | posFormat | Format identifier: format = 1 |
// +--------------------+---------------------------------+------------------------------------------------------+
// | Offset16 | coverageOffset | Offset to Coverage table, |
// | | | from beginning of CursivePos subtable. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | uint16 | entryExitCount | Number of EntryExit records. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | EntryExitRecord | entryExitRecord[entryExitCount] | Array of EntryExit records, in Coverage index order. |
// +--------------------+---------------------------------+------------------------------------------------------+
ushort coverageOffset = reader.ReadOffset16();
ushort entryExitCount = reader.ReadUInt16();
var entryExitRecords = new EntryExitRecord[entryExitCount];
for (int i = 0; i < entryExitCount; i++)
{
entryExitRecords[i] = new EntryExitRecord(reader, offset);
}
var entryExitAnchors = new EntryExitAnchors[entryExitCount];
for (int i = 0; i < entryExitCount; i++)
{
entryExitAnchors[i] = new EntryExitAnchors(reader, offset, entryExitRecords[i]);
}
var coverageTable = CoverageTable.Load(reader, offset + coverageOffset);
return(new LookupType3Format1SubTable(coverageTable, entryExitAnchors, lookupFlags));
}
List <EntryExitRecord> entryExitRecord; // Array of EntryExit records, in Coverage index order.
public void Read(TTFReader r, bool readFormat)
{
if (readFormat == true)
{
r.ReadInt(out this.posFormat);
}
r.ReadInt(out this.coverageOffset);
r.ReadInt(out this.entryExitCount);
this.entryExitRecord = new List <EntryExitRecord>();
for (int i = 0; i < this.entryExitCount; ++i)
{
EntryExitRecord eer = new EntryExitRecord();
eer.Read(r);
this.entryExitRecord.Add(eer);
}
}
public EntryExitRecord GetEntryExitRecord(uint i)
{
EntryExitRecord eer = null;
if (i < EntryExitCount)
{
ushort sizeofEntryExitRecord = 4;
uint offset = m_offsetCursivePos + (uint)FieldOffsets.EntryExitRecordArray + i*sizeofEntryExitRecord;
eer = new EntryExitRecord(offset, m_bufTable, m_offsetCursivePos);
}
return eer;
}
/// <summary>
/// Initializes a new instance of the <see cref="EntryExitAnchors"/> class.
/// </summary>
/// <param name="reader">The big endian binary reader.</param>
/// <param name="offset">The offset to exitAnchor table, from beginning of CursivePos subtable.</param>
/// <param name="entryExitRecord">Offsets to entry and exit Anchor table, from beginning of CursivePos subtable.</param>
public EntryExitAnchors(BigEndianBinaryReader reader, long offset, EntryExitRecord entryExitRecord)
{
this.EntryAnchor = entryExitRecord.EntryAnchorOffset != 0 ? AnchorTable.Load(reader, offset + entryExitRecord.EntryAnchorOffset) : null;
this.ExitAnchor = entryExitRecord.ExitAnchorOffset != 0 ? AnchorTable.Load(reader, offset + entryExitRecord.ExitAnchorOffset) : null;
}
