Re: Fixed line width in SADT

["Lars Clausen" <lars raeder dk>]

Bleck said:
> Hi,
>
> I'd like to use the SADT/IDEF0 sheet. But I can't change the line width of
> activities (boxes) and flows (arrows). Let's be clear, I have no problem
> changing width of common objects (boxes ou lines).
>
> Is there a trick to change arrows/boxes line widths settings in SADT/IDEF0
> ?
> Better if there is a functionnality I did not found. Good if it's
> soft-coded (in a script or so). I'm not a programmer but I can also change
> things in the source code and compile (make) dia, if necessary and if i'm
> told where/what to do ;-)

You want to look in objects/SADT/box.c and arrow.c, where you'd need to
introduce new properties (look in object/standard/box.c for the linewidth
property) and use them instead of the constant line width.  Problems to
watch out for: The bounding box must include half the line width, and it
should still be possible to load old objects.  There are macros defined in
lib/properties.h to deal with the latter.

> There's also another bug in the implementation of SADT/IDEF0 arrows. The
> zig-zag lines bug described in the FAQ (Q-13) which is said to be solved
> since version 0.93 still applies to SADT arrows. Fortunately, the trick
> explained in the FAQ works on these arrows.

That's because it is based on the neworthconn class (a failed attempt at
improving the orthconn), which doesn't have autorouting.  I haven't had
the time to work out if it can be replaced with the normal orthconn.

-Lars