[R-SIG-Mac] The diff as promised

Byron Ellis bellis at hsph.harvard.edu
Thu Aug 5 08:17:25 CEST 2004

On Aug 4, 2004, at 6:43 AM, Simon Urbanek wrote:

> On Aug 4, 2004, at 7:38 AM, Byron Ellis wrote:
>> Do you mean R will run without having to use the Cocoa bundle to 
>> bootstrap the code? I'd be curious to see how that worked. I guess I 
>> will in August :-)
> That code exist for more than a year now ;), it's part of the Obj-C 
> interface to R I mentioned a while ago.
Just goes to show how much I've been paying attention :-)

> There are two approaches - the old one using a single thread (that's 
> what my old Cocoa Rgui used - this has several limitations because R 
> can block the entire interface) and the more recent one which runs R 
> and its loop in a separate thread (very much like JGR). Both are in 
> the CVS. The option of using R as a framework instead of plugging 
> Cocoa into R has the advantage that the application is a "real" 
> application, nut just a wrapper to the R script, which caused quite 
> some problems.

Yeah, my bundle does the former and just lets the entire thing block 
(it doesn't bother me all that much since the other GUIs do 
more-or-less the same thing). The big disadvantage is that I can't 
interrupt execution because keyboard events don't get passed. I agree 
about making R/Cocoa (not to be confused with R/CoCo) a "real" 
application---the wrapper script drives me crazy. There's no way to 
debug except through using lots of NSLog statements and spending a lot 
of time in the Crash Log! But, now the question becomes, which CVS 
repository would that be? The main R (now SVN) repository?!

>> I've got my quartz device mostly working.
> Sounds good :).
>> how/where to set fontfamily in R_GE_gcontext,
> AFAIR so far it works in grid only, using gp=gpar(fontfamily="...")). 
> JavaGD respects this flag as well as the alpha transparency.

Yup, I saw your other email and fixed it. Also fixed font colors while 
I was at it. Transparency just works (yay Quartz!).

> Unfortunately I'll be very busy in the next two weeks, so I won't have 
> time to look at it until later this month :(.

Everybody here is out of town heading to the JSMs early but me, so I've 
had some time alone to work on things. :-) (I don't get to go---too 
bad, I've never been to Toronto).

At any rate, it'll be sitting in CVS when you get back. :-)

> Cheers,
> Simon
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Byron Ellis (bellis at hsph.harvard.edu)
"Oook" -- The Librarian

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