[R] Radio Buttons or similars

[Gabor Grothendieck]

Use tkwait.variable(done) to wait until tcl variable done turns non zero.
I've changed the lines marked ###.  Also see:
http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/OKCancelDialog.html

function1<-function(){
       require(tcltk)
       tt <- tktoplevel()
       rb1 <- tkradiobutton(tt)
       rb2 <- tkradiobutton(tt)
       rbValue <- tclVar("oranges")
       tkconfigure(rb1,variable=rbValue,value="apples")
       tkconfigure(rb2,variable=rbValue,value="oranges")
       tkgrid(tklabel(tt,text="Which do you prefer?"))
       tkgrid(tklabel(tt,text="Apples "),rb1)
       tkgrid(tklabel(tt,text="Oranges "),rb2)
       value<-0;
       done <- tclVar(0) ###
       aux_function<- function()
       {
           rbVal <- as.character(tclvalue(rbValue))
           # tkdestroy(tt) ###
           if (rbVal=="apples")
               tkmessageBox(message="Good choice!  An apple a day
keeps the doctor
away!")
           if (rbVal=="oranges")
               tkmessageBox(message="Good choice!  Oranges are full of
Vitamin C!")
           tclvalue(done) <- 1 ###
           print(rbVal);
           return(rbVal);
       }
       OK.but <- tkbutton(tt,text="OK",command=function() aux_function())
       #OK.but <- tkbutton(tt,text="OK",command=function()
value<<-aux_function())

       tkgrid(OK.but)
       tkfocus(tt)
       tkwait.variable(done) ###
       tkdestroy(tt) ###
       #return(value)
       }



On Wed, Mar 19, 2008 at 7:50 PM, ermimi <ermimi_ at hotmail.com> wrote:
>
> Hello companions!!!
>
> I have a function that creates a Radio Buttons, and I need that this
> function return the selected value in the Radio Buttons. I would like that,
> if somebody know as I could return the value, you say me as do it.
>
> Next, I show the function
>
>
> function1<-function(){
>        require(tcltk)
>        tt <- tktoplevel()
>        rb1 <- tkradiobutton(tt)
>        rb2 <- tkradiobutton(tt)
>        rbValue <- tclVar("oranges")
>        tkconfigure(rb1,variable=rbValue,value="apples")
>        tkconfigure(rb2,variable=rbValue,value="oranges")
>        tkgrid(tklabel(tt,text="Which do you prefer?"))
>        tkgrid(tklabel(tt,text="Apples "),rb1)
>        tkgrid(tklabel(tt,text="Oranges "),rb2)
>        value<-0;
>        aux_function<- function()
>        {
>            rbVal <- as.character(tclvalue(rbValue))
>            tkdestroy(tt)
>            if (rbVal=="apples")
>                tkmessageBox(message="Good choice!  An apple a day keeps the doctor
> away!")
>            if (rbVal=="oranges")
>                tkmessageBox(message="Good choice!  Oranges are full of Vitamin C!")
>            print(rbVal);
>            return(rbVal);
>        }
>        OK.but <- tkbutton(tt,text="OK",command=function() aux_function())
>        #OK.but <- tkbutton(tt,text="OK",command=function() value<<-aux_function())
>
>        tkgrid(OK.but)
>        tkfocus(tt)
>        #return(value)
>        }
>
>
>
>
> Thanks in advance!
> A greetings Luismi
> --
> View this message in context: http://www.nabble.com/Radio-Buttons-or-similars-tp16164495p16164495.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> and provide commented, minimal, self-contained, reproducible code.
>