Keith Chamberlain wrote:> Dear list mates,
>
> Are {utils} dialog box functions, and winMenuAdd... functions used to
change
> (e.g. Console) menus, platform dependent?
Yes, Windows-only as the 'win' prefix suggests it.
> I'm writing a script loaded with .First that provides first time users
in a
> lab course with the ability to select, load, and change between what I
> called a 'session' (more specific save that focuses on the session
object I
> defined rather than the whole workspace, & intended to run many
different
> sessions through the course of what would be one workspace).
See also the 'session' package on CRAN for that.
> I'm using winMenuAdd() calls to generate their 'Session' menu
at startup,
> the menus call functions sourced in for the menu actions. In the menu
> actions, I call routines that use select.list() and file.choose() calls to
> interact with users.
>
> I do not work with Macs often, and from what I've gathered today in
posts
> about cross-platform difficulties, my sense of being intimidated
"seems"
> well placed to me (then again, breaks & some sleep would probably
help). I
> have not had the chance to test routines on a Mac yet, so I have no idea
> what to expect. Is this tract I took with winMenuAdd() & related
[{utils}
> windows build] an appropriate route to take wrt the Mac build of R, or
would
> I be better off using another package?
For a platform-independent way of defining menus (you will have a
floating window with your menu), look at ?MenuAdd in package svWidgets
(SciViews bundle). With these functions, you even have more control on
the menus (define shortcuts, trigger the menus through R code, for
instance), and you can define your menu in one R instruction and a
simple text file to describe the menu structure, like this:
# Create a Tk window then add a menu to it
$MyTkWindow
|$MenuTest
||Objects ~~ ls()
||-
||Path ~~ search()
# Add menus to the RGui console (Windows only)
$ConsoleMain
|$Testit
||One ~~ cat("One triggered!\n")
||-
||Two ~~ cat("Two triggered!\n") ~~ state = "disable"
||$SubMenu
|||Three ~~ cat("Three triggered!\n")
|||Four ~~ cat("Four triggered!\n")
||Five ~~ cat("Five triggered!\n")
# Add menu to the RGui console popup (Windows only)
$ConsolePopup
|$TestitPopup
||Six ~~ cat("Six triggered!\n")
If the preceeding menu definition is in a file named "Menus.txt" in
the
/gui subdirectory of your "MyPackage" package, you can do:
library(svWidgets)
> tkWinAdd("MyTkWindow", title = "Menu window", pos
="-40+20")
> MenuReadPackage("MyPackage")
... and you got all your menus configured at once (for MyTkWindows +
RGui console + RGui console popup menu
Best,
Philippe Grosjean
> Please advise,
> KeithC.
>
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