Hi David,
forgot to mention I use the RGtk2 GUI toolkit.
options("guiToolkit"="RGtk2")
Under tcl I do not get this results neither. Under RGtk2 I do (Mac OS
10.6.1, R 2.10.0 32-bit).
Any ideas?
TIA!
Mark
Am 27.12.2009 um 18:05 schrieb David Winsemius:
>
> On Dec 27, 2009, at 11:29 AM, Mark Heckmann wrote:
>
>> In The following code, the table handler is executed twice when the
>> button is pressed (from the 2nd pressing on).
>
> Can't reproduce. On a Mac 10.5.8, R 2.10.1, running the 64 bit GUI,
> after choosing the gWidgetstcltk option for GUI toolkit when gwindow
> () is first executed, I do not get a behavior that suggests that the
> table handler gets executed twice with each button click. I get an
> X11 window with a button across the width of the top of the window.
> Each time the button is clicked I get :
> >
> addhandlerclicked button
> addhandlerclicked table
>
> Just for fun I modified your tbl handler and got sensible
> incrementing highlighting of the rows with:
> > addhandlerclicked(b, handler=function(h, ...){
> + cat("addhandlerclicked button\n")
> + svalue(tbl, index=T) <- 1+svalue(tbl) # the earlier code did not
> change values
> + })
>
>
>> I want it to be executed only once. Does someone know, why this
>> happens and how I can change it?
>>
>> library(gWidgets)
>>
>> w <- gwindow()
>> b <- gbutton("press", cont=w)
>> tbl <- gtable(1:10, cont=w)
>>
>> addhandlerclicked(b, handler=function(h, ...){
>> cat("addhandlerclicked button\n")
>> svalue(tbl, index=T) <- 1 # change the
>> table value
>> })
>> addhandlerclicked(tbl, handler=function(h, ...){
>> cat("addhandlerclicked table\n")
>> })
>>
>> Thanks!
>> Mark
> --
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
Mark Heckmann
Dipl. Wirt.-Ing. cand. Psych.
Vorstraße 93 B01
28359 Bremen
Blog: www.markheckmann.de
R-Blog: http://ryouready.wordpress.com
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