/// <summary>Get <c>ith</c> encoding table, or null if <c>i</c> out
/// of range.</summary>
public EncodingTableEntry GetEncodingTableEntry(uint i)
{
uint SIZEOF_ENCODINGTABLEENTRY = 8;
EncodingTableEntry ete = null;
if ( i < NumberOfEncodingTables &&
(uint)FieldOffsets.EncodingTableEntries +
(i+1)*SIZEOF_ENCODINGTABLEENTRY <= m_bufTable.GetLength())
{
ete = new EncodingTableEntry();
ete.platformID =
m_bufTable.GetUshort((uint)
FieldOffsets.EncodingTableEntries +
i*SIZEOF_ENCODINGTABLEENTRY);
ete.encodingID =
m_bufTable.GetUshort((uint)
FieldOffsets.EncodingTableEntries +
i*SIZEOF_ENCODINGTABLEENTRY + 2);
ete.offset =
m_bufTable.GetUint((uint)
FieldOffsets.EncodingTableEntries +
i*SIZEOF_ENCODINGTABLEENTRY + 4);
}
return ete;
}
/************************
* public methods
*/
public override Subtable GetSubtable(EncodingTableEntry ete)
{
Subtable st = null;
// identify the format of the table
ushort format = 0xffff;
try
{
format = m_bufTable.GetUshort(ete.offset);
}
catch
{
}
switch(format)
{
case 0: st = new Format0_val (ete, m_bufTable); break;
case 2: st = new Format2_val (ete, m_bufTable); break;
case 4: st = new Format4_val (ete, m_bufTable); break;
case 6: st = new Format6_val (ete, m_bufTable); break;
case 8: st = new Format8_val (ete, m_bufTable); break;
case 10: st = new Format10_val(ete, m_bufTable); break;
case 12: st = new Format12_val(ete, m_bufTable); break;
case 14: st = new Format14_val(ete, m_bufTable); break;
}
return st;
}
public Format4_val(EncodingTableEntry ete, MBOBuffer bufTable)
: base(ete, bufTable)
{
}
/// <summary>Abstract base class stores <c>platformID</c>,
/// <c>encodingID</c>, <c>offset</c> and MBO byte array for whole
/// cmap table.
/// </summary>
public Subtable(EncodingTableEntry ete, MBOBuffer bufTable)
{
m_ete = ete;
m_bufTable = bufTable;
}
