gEDA-dev: PCB HID

[DJ Delorie]

> So, if I was asking a line to go draw yourself why do I have to expect
> that line to have an understanding of the graphics context. Idealy,
> shouldn't the gui know the context?

The GUI only knows the context because the core tells it which context
to use.  There are usually a handful of contexts in use at any given
time.

The abstraction is not at the PCB level.  It's a little lower; the GUI
knows how to draw a graphics line, not a PCB line.  So, you don't say
"draw this line" you say "draw a blue line, 4 pcb units wide, from A
to B, with round ends".