[Xastir] Query on symbol ghosting

[Curt Mills]

This week I fixed a bug having to do with proximity circles/hurricane
circles/tracked-station circles not ghosting when the symbol ghosts. I
haven't checked in those changes yet but they are forthcoming.

There are most likely additional "things" attached to symbols which do not
ghost, so I'll be looking at most of the rest of the things that attach to
symbols with this in mind (in draw_symbols.c mostly).

Question: Should the callsign/tactical-callsign ghost as well?  If so,
should it go to reduced brightness like the symbol, or should it disappear
altogether?

Right now I'm leaning towards the latter. When I'm tracking airplanes and
the symbols ghost, the callsigns stick around at full brightness cluttering
up the screen until the station gets deleted entirely from the database.

BTW: I have quite a few more improvements for the airplane tracking,
including decoding a LOT more airplane packets via a different fork of
dump1090 + new command-line parameters to go with it. I'll check those in
soon too.

-- 
Curt, WE7U
http://wetnet.net/~we7u
http://www.sarguydigital.com