[R] how to put ggobi display into a GUI window setup by gWidgets

[j verzani]

jerry83 <chaohan1983 <at> yahoo.com> writes:

Jerry, see below:

> 
> 
> Hi John,
> 
> Thanks A LOT for your reply and the code. What I want to do is to include the
ggobi display window to the widget
> window setup by me. I tried add before but it said can not do it for
GGobiScatterplotDisplay. Do you have
> any idea about add displays?
> 
> Thanks again for your help.
> Â 
> 
> ________________________________
> From: jverzaniNWBKZ [via R] <ml-node+930927-1354988502 <at> n4.nabble.com>
> 
> Sent: Sun, November 29, 2009 5:19:43 PM
> Subject: Re: [R] how to put ggobi display into a GUI window setup by gWidgets
> 
> jerry83 <chaohan1983 <at> yahoo.com> writes: 
> 
> > 
> > 
> > Hi, 
> > 
> > I want to put a ggobi display into a GUI window setup by gWidgets, but error 
> > occur said it is not a S4 object. 
> > 
> > Does anyone have any idea about how to put it in or maybe it can not be put 
> > into a widget at all? 
> > 
> > Thanks A LOT! 
> 
> To embed a GTK widget into gWidgets isn't too hard, just call the add method. 
> I'm not sure how  to get the GTK object you want from the ggobi 
> interface. Below is an example that you might be able to modify: 
> 
> ## 
> library(RGtk2) 
> library(rggobi) 
> library(gWidgets) 
> options(guiToolkit="RGtk2") 
> 
> ## ggoobi object 
> x <- ggobi(mtcars) 
> 
> ## grab child from main window. Modify (how?) to get 
> ## other widgets 
> toplevel <- ggobi_gtk_main_window(x) 
> child <- toplevel[[1]] Â # toplevel has only one child 
> toplevel$remove(child) Â # remove child if keeping toplevel 
> toplevel$destroy() Â  Â  Â # or destroy if not 
> 
> ## add to a gWidget instance using gWidgetsRGtk2: 
> w <- gwindow("A gwidget's window") 
> g <- ggroup(cont = w, expand=TRUE) 
> add(g, child, expand=TRUE) 
> 
> --John 
> 


Here is some code to grab the display for a new display. I don't know
how to get the initial display or even how to suppress it, but I'm
not a ggobi user at this point.

library(RGtk2)
library(rggobi)
library(gWidgets)
options(guiToolkit="RGtk2")

x <- ggobi(mtcars)
## not sure how to get the initial display,
## here we create a new display and move that
disp <- display(x[1]) ## see display.GGobiData

## find table in the display heirarchy
table <- disp[[2]]

## plot is third child (rulers are first two)
plotWidget <- table[[3]]$getWidget()
table$remove(plotWidget)
## hide window that held display. Destroy() causes errors
disp$getParent()$hide() 

## now we need to declass things so that gWidgets will 
## recognize. The S3 classes from RGtk2 that gWidgets 
## knows about are declared in package (should be 
## dynamic, but aren't)

class(plotWidget) <- class(plotWidget)[-(1:3)]

w <- gwindow("A gwidget's window")
g <- ggroup(cont = w, expand=TRUE)
add(g, plotWidget, expand=TRUE)



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