Re: Mac OS X + PARI + FLTK

["Justin C. Walker" <justin@mac.com>]

A quick update:

On Friday, November 7, 2003, at 10:46 AM, Karim BELABAS wrote:

> Hi,
>
>   I have ported gp hi-res graphics to the MacOS X platform, using the
> lightweight fltk library (www.fltk.org). Provided, fltk is installed,
> this is enabled by
>
>     Configure --with-fltk
>
> There are two problems:
[snip]

I built fltk (downloaded source from www.fltk.org) and installed on 
10.3.  I rebuilt (--with-fltk) gp, with the BROKEN_FORK macro commented 
out.  When I run gp and type
? ploth(x=-2,2,x^2-2)

I get a pretty picture in a nice brushed-metal window labled "PARI/GP". 
 The window departs the scene nicely when I click in the pane, but I 
can't do any "window-like-things" to that window (e.g., drag, grow, 
...).  The "x/-/+" buttons are live and do what they should.
I'm no graphics guy, but I will bet the problem is that gp is talking 
to the window manager without actually becoming a first-class window 
citizen.  Thus, when mouse actions take place, the manager has no idea 
what to do with them (or perhaps it does, but gp isn't listening).
I don't see run-away CPU activity when I execute the above (the CPU 
meter is pegged somewhere near the bottom), and I get a prompt back 
right away (independent of whether I terminate with a ';').
So: on 10.3, I don't get runaway CPU cycles, I get control back 
immediately in the gp terminal session, and I get pretty pictures which 
can be dismissed by clicking in them once or twice (you may need to 
"click to focus").
I will look at the state of things on 10.2.8 in the next day or so.  
Right now, I have to look at tensor products of restricted direct 
products. :-}.
I hope that answers some of your concerns (if I read your mail 
correctly).
Cheers,

Justin

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