[Rd] RAqua and AquaTclTk
p.dalgaard at biostat.ku.dk
Thu Oct 30 17:54:01 MET 2003
Stefano Iacus <jago at mclink.it> writes:
> While playing around with panther I discovered (with surprise) that
> tcltk seems to work (even if not smoothly) with RAqua without first
> calling tkStartGUI.
> I switched back to 10.2.6 and it works as well.
> I think this is due to the "last minute" fix in RAqua now using idle
> timers because of too much cpu usage.
> Some "mouse" trick is needed though. If you want to test it you can
> just try
> press return and wait for quartz device to show the density plot.
> Then to interact with the widgets just click outside R (everywhere but
> not windows related to R) and click on the tk-window to activate it.
> Now you can interact with the widgets for "some time", which means
> that after a while you loose the control and you need to re-do the
> trick (click outside R and reactivate the tk window).
> BTW, doing this (which is far from being even suboptimal) you loose
> RAqua menus.
> I think RAqua menus should be reestablished if I force the redrawing
> after every activation of the RAqua Console window.
> The other problem (loose of control of tk window) seems to come from
> the bliking cursor on the RAqua Console.
> I'll try to change/fix the last two points in R-patched and update you
> on this history.
> Of course if you have other ideas in the meanwhile let me know.
I'm not sure I understand the code, but it seems that you're running
OtherEventLoops in a separate "thread" (or timer)?
and it is OtherEventLoops that does
R_runHandlers(R_InputHandlers, R_checkActivity(0, 1));
If Tcl is among the R_InputHandlers, I think you might want to do this
*only* when idle, to avoid getting a callback interfering with an
executing Tcl command. I.e. perhaps get rid of OtherEventLoops and
move content into RIdleTimer?
Another thing that I suspect you're not handling properly is the
recursive event loop: If you do something like tkwait.variable("foo")
then the tcltk main loop takes over and you need to register an Aqua
event handler for it. Can this be done?
Again, I have zero documentation on how Aqua works and no machine
where it runs, so I could be talking complete rubbish here...
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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