On Fri, May 13, 2011 at 2:37 AM, Yvonnick Noel <yvonnick.n...@uhb.fr> wrote: > Hello John, > > Hope you are doing well. > > I note the following problem with the last version of gWidgetsRGtk2. > Defining a gradio handler as a function embedded in a proto class leads to > an error : > > library(proto) > library(gWidgetsRGtk2) > > example = proto( > create = function(.) { > > .$window = gwindow(visible=FALSE) > .$choice = gradio(1:3,cont=.$window,handler=.$onChoice) > visible(.$window)=TRUE > }, > onChoice = function(.,h,...) { > cat("You clicked",svalue(.$choice),"\n") > }, > window = NULL, > choice = NULL > ) > > example$create() > > Error in as(value, "function") : > internal problem in as(): "instantiatedProtoMethod" is(object, "function") > is TRUE, but the metadata asserts that the 'is' relation is FALSE > > Note that is works if I define the onChoice function outside the proto > object, and it also works if a replace the gradio by a gdroplist, so it > seems specific to gradio. > > Thank you in advance for your help. > > Best wishes, > > Yvonnick Noel > University of Brittany, Rennes > France >
On my system it works even with gradio if gWidgetsRGtk2 is replaced by gWidgetstcltk. > packageVersion("gWidgets") [1] ‘0.0.44’ > packageVersion("gWidgetstcltk") [1] ‘0.0.43’ > packageVersion("proto") [1] ‘0.3.9.2’ > R.version.string [1] "R version 2.13.0 Patched (2011-04-25 r55638)" > win.version() [1] "Windows Vista (build 6002) Service Pack 2" -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com _______________________________________________ R-SIG-GUI mailing list R-SIG-GUI@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-gui