Dear Lorenzo,
For my "retistruct" package, which depends on gWidgets2RGtk2, I have
gWidgets2RGtk2, gWidgets2 and cairoDevice as "Suggests" and I put the
following code in the function that opens the GUI ('retistruct()' in
https://github.com/davidcsterratt/retistruct/blob/master/pkg/retistruct/R/retistruct-gui.R):
guiToolkit <- "RGtk2"
require.package <- function(pkg) {
suggests<-tools::package.dependencies(installed.packages()["retistruct",],
depLevel="Suggests")$retistruct
suggests <- suggests[suggests[,1] == pkg]
uptodate <- ifelse(is.na(suggests[2]),
TRUE,
eval(parse(text=paste("packageVersion(suggests[1])",
suggests[2], "suggests[3]"))))
if (!require(pkg, character.only=TRUE) |
!uptodate) {
message(paste("Trying to install required package", pkg))
install.packages(pkg)
if (!require(pkg, character.only=TRUE)) {
stop(paste("Could not install", pkg))
}
}
}
require.package(paste0("gWidgets2", guiToolkit))
require.package("cairoDevice")
options(guiToolkit=guiToolkit)
The package can work without a GUI, and may be installed on systems that
do not have GTK installed. There is user documentation on installing
RGtk2 which, if it's useful to you, you could of course copy:
http://retistruct.r-forge.r-project.org/retistruct-user-guide.pdf
Best wishes,
David.
--
David C Sterratt, Research Fellow - http://homepages.inf.ed.ac.uk/sterratt
Institute for Adaptive and Neural Computation tel: +44 131 651 1739
School of Informatics, University of Edinburgh fax: +44 131 650 6899
Informatics Forum, 10 Crichton Street, Edinburgh EH8 9AB, Scotland, UK
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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