Hi,
I've been playing a little with dia on the past few
week and despite the fact that I have no practical
uses for the thing, I really like it and quite fancy
hacking on it.
I thought I'd start on something easy, so I have some
bits of flowchart being created and working (well,
statement and decision boxes), and I've hit my first
stumbling block.
The begin and end blocks (as drawn by Visio, at least)
are essentially rectancles with a semicircle on each
end.
1. How do I draw a partial ellipse?
2. How do I ensure that, as the object gets resized,
the semicircles remain regular?
So far, my objects are based on the code from
objects/network/computer.c which seems just to render
the object at creation time and leave the interface to
handle resizes, &c. While this seems very nice and
quite flexible, I'm not exactly sure how to go about
making the object change shape when it gets resized.
I've also been playing with Oracle and have some Perl
to turn a table list into SQL creation scripts. I'd
like to hack something like Visio's database map into
dia, but I'm not rightly sure where I should start.
Should I be able to hack something like that in without
seriously disrupting anything?
Cheers,
Matthew.
