bool
ListControl::OnKeyCheck(unsigned key_code) const
{
switch (key_code) {
case KEY_RETURN:
return CanActivateItem();
case KEY_LEFT:
if (!HasPointer())
/* no wrap-around on Altair, as KEY_LEFT is usually used to
switch to the previous dialog page */
return true;
return GetCursorIndex() > 0;
case KEY_UP:
if (!HasPointer() && IsShort())
/* no page up/down behaviour in short lists on Altair; this
rotation knob should move focus */
return false;
return GetCursorIndex() > 0;
case KEY_RIGHT:
if (!HasPointer())
/* no wrap-around on Altair, as KEY_RIGHT is usually used to
switch to the next dialog page */
return true;
return GetCursorIndex() + 1 < length;
case KEY_DOWN:
if (!HasPointer() && IsShort())
/* no page up/down behaviour in short lists on Altair; this
rotation knob should move focus */
return false;
return GetCursorIndex() + 1 < length;
default:
return false;
}
}
void
PkChar::Read (/*[in]*/ InputStream & inputstream,
/*[in]*/ int flag)
{
this->flag = flag;
if (IsShort())
{
// read character preamble (short form)
packetSize = (((static_cast<int>(GetLower3()) % 4) << 8
| inputstream.ReadByte())
- 8);
charCode = inputstream.ReadByte();
tfm = inputstream.ReadTrio();
cx = inputstream.ReadByte();
rasterWidth = inputstream.ReadByte();
rasterHeight = inputstream.ReadByte();
cxOffset = inputstream.ReadSignedByte();
cyOffset = inputstream.ReadSignedByte();
}
else if (IsExtendedShort())
{
// read character preamble (extended short form)
packetSize = (((static_cast<int>(GetLower3()) % 4) << 16
| inputstream.ReadPair())
- 13);
charCode = inputstream.ReadByte();
tfm = inputstream.ReadTrio();
cx = inputstream.ReadPair();
rasterWidth = inputstream.ReadPair();
rasterHeight = inputstream.ReadPair();
cxOffset = inputstream.ReadSignedPair();
cyOffset = inputstream.ReadSignedPair();
}
else
{
// read character preamble (long form)
packetSize = inputstream.ReadSignedQuad() - 28;
charCode = inputstream.ReadSignedQuad();
tfm = inputstream.ReadSignedQuad();
cx = inputstream.ReadSignedQuad();
cx = (cx + 0x10000) >> 16;
cy = inputstream.ReadSignedQuad();
cy = (cy + 0x10000) >> 16;
rasterWidth = inputstream.ReadSignedQuad();
rasterHeight = inputstream.ReadSignedQuad();
cxOffset = inputstream.ReadSignedQuad();
cyOffset = inputstream.ReadSignedQuad();
}
tfm = ScaleFix(tfm, pDviFont->GetScaledAt());
if (packetSize == 0)
{
#if 0
trace_error->WriteFormattedLine
("libdvi",
T_("%d: no glyph!"),
charCode);
#endif
}
else
{
trace_pkchar->WriteFormattedLine
("libdvi",
T_("going to read character %d"),
charCode);
pPackedRaster = new BYTE[packetSize];
inputstream.Read (pPackedRaster, packetSize);
}
}
Boolean ShortInt::IsValue(const ChrString& Str_)
{
return IsShort(Str_.c_str());
}
bool
PkChar::IsExtendedShort ()
{
return (GetLower3() < 7 && ! IsShort() ? true : false);
}
