public uint CalcLength()
{
uint length = 0;
if (AnyComponentsHaveInstructions())
{
length += (uint)2 + GetNumInstructions();
}
CompositeGlyph nextCG = this;
while (nextCG != null)
{
length += nextCG.GetCompositeGlyphLength();
nextCG = nextCG.GetNextCompositeGlyph();
}
return(length);
}
public ushort GetNumInstructions()
{
ushort nInstructions = 0;
if (AnyComponentsHaveInstructions())
{
// instructions follow the last component
CompositeGlyph lastCG = this;
CompositeGlyph nextCG = GetNextCompositeGlyph();
while (nextCG != null)
{
lastCG = nextCG;
nextCG = lastCG.GetNextCompositeGlyph();
}
uint nOffset = lastCG.m_offsetCompositeGlyph + lastCG.GetCompositeGlyphLength();
nInstructions = m_bufTable.GetUshort(nOffset);
}
return(nInstructions);
}
public byte GetInstruction(uint i)
{
byte byteInstruction = 0;
ushort nInstructions = 0;
if (AnyComponentsHaveInstructions())
{
// instructions follow the last component
CompositeGlyph lastCG = this;
CompositeGlyph nextCG = GetNextCompositeGlyph();
while (nextCG != null)
{
lastCG = nextCG;
nextCG = lastCG.GetNextCompositeGlyph();
}
uint nOffset = lastCG.m_offsetCompositeGlyph + lastCG.GetCompositeGlyphLength();
nInstructions = m_bufTable.GetUshort(nOffset);
if (i < nInstructions)
{
byteInstruction = m_bufTable.GetByte(nOffset + 2 + i);
}
else
{
throw new ArgumentException();
}
}
else
{
throw new ApplicationException("WE_HAVE_INSTRUCTIONS flag is clear");
}
return(byteInstruction);
}
