[Rd] misbehaviour of some tk windows, R 2.6.0 on SUSE 10.1?

From: David Firth <d.firth_at_warwick.ac.uk>
Date: Tue, 9 Oct 2007 12:48:11 +0100


I don't know whether this is specific to (my installation of) SUSE 10.1, or is more general.

With R 2.6.0, I am finding that some widgets made through the tcltk package are having problems which become evident through scrollbar activity. An example is demo(tkfaq) -- see below. To reproduce the problem, I do the following: after the tk window appears, hold down the "scroll-down" tab at the foot of the window for a few seconds, then release. If scrolling stops (as it should, if all is working correctly), do the same thing again. Repeating this 2 or 3 times usually results in uncontrolled (unstoppable) scrolling activity; and closing the window when that happens delivers the errors that appear in the transcript below.

My R 2.6.0 was built on my own system,

OS: SUSE linux 10.1

tcl: 8.4.12-14
tk:  8.4.12-14
gcc: 4.1.0-25

Since I had not seen this behaviour with previous versions of R, I did a check with R 2.5.1: a fresh build today of R 2.5.1 on the same system does not appear to have the same problem.

Any ideas? Is anyone else seeing this behaviour?

David



david_at_blackbox2:~> R --vanilla

R version 2.6.0 (2007-10-03)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R.

> sessionInfo()

R version 2.6.0 (2007-10-03)
i686-pc-linux-gnu

locale:
LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_GB.UTF-8;LC_MONETARY=en_GB.UTF-8;LC_MESSAGES=en_GB.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATION=C

attached base packages:

[1] stats     graphics  grDevices utils     datasets  
methods   base     

loaded via a namespace (and not attached): [1] rcompgen_0.1-15
> library(tcltk)

Loading Tcl/Tk interface ... done
> demo(tkfaq)

	demo(tkfaq)
	---- ~~~~~

Type  <Return>	 to start : 

> require(tcltk) || stop("tcltk support is absent")
[1] TRUE
> local({

+ 
+     tt <- tktoplevel()
+     tkwm.title(tt, "R FAQ")
+ #    Gave tiny font on some systems
+ #    txt <- tktext(tt, bg="white", font="courier")
+     txt <- tktext(tt, bg="white")
+     scr <- tkscrollbar(tt, repeatinterval=5,
+        .... [TRUNCATED] 
******************************************************
 The source for this demo can be found in the file:  /home/david/lib/R/library/tcltk/demo/tkfaq.R

> Error in structure(.External("dotTclObjv", objv, PACKAGE
= "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.1".

Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.2".

Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.2".

Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.2".

Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.2".

Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") :
  [tcl] invalid command name ".1.2".

>



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