[Rd] Qt device update
simon.urbanek at r-project.org
Fri May 4 20:09:44 CEST 2007
On May 3, 2007, at 8:52 PM, Deepayan Sarkar wrote:
> [...] I have a couple of related questions. First, dev.interactive
> (), used in example() and many demo()-s to decide if the current
> device is interactive, is currently implemented as:
> function (orNone = FALSE)
> iDevs <- c("X11", "GTK", "gnome", "quartz", "windows", "JavaGD")
> interactive() && (.Device %in% iDevs || (orNone && .Device ==
> "null device" && getOption("device") %in% iDevs))
> This makes it impossible for new devices to be treated as interactive.
I think we should finally pass this question to the device itself.
For some devices like Cairo the answer depends on the parameters with
which the device was created (e.g. type='x11' is interactive whereas
type='png' is not), so each instance of the device will answer
differently. We could simply add an another capability flag - that is
IMHO the only reliable solution. Any other ideas?
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