Hi Paul, Just checking in to see what the status is.
>From my perspective it seems logical to split off X11 into a separate package, so development can proceed at a reasonable rate, but I haven't yet tried to see if that's even possible. Thanks, Frederick On Tue, Jul 26, 2016 at 09:23:35AM +1200, Paul Murrell wrote: > Hi > > Taking a look at those patches is now on my todo list, so I may be in touch > with both of you at some point to request some testing. > > Paul > > On 26/07/16 07:17, frede...@ofb.net wrote: > > Dear Daniel Greenidge, > > > > To enable getGraphicsEvent on Cairo, you have two patches to choose > > from: > > > > https://bugs.r-project.org/bugzilla/show_bug.cgi?id=14364 > > https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951 > > > > The second one is by me, and the first one is from five years ago by > > Hugo Mildenberger. > > > > Both patches are very simple, they move some lines enabling > > getGrahpicsEvent outside of a if(!cairo) statement. My patch also adds > > the ability to execute code (e.g. for animation) while the interface > > is idle. > > > > Top guy Duncan Murdoch has expressed that he doesn't have time to work > > on applying these patches, and I haven't had any responses from the > > rest of the R Core Team. I was thinking that perhaps your best bet is > > to try to create a package called e.g. "X11-fixes" which people can > > use to get a better X11 library (there is also a bug waiting to be > > fixed from 2001: > > https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16702). > > > > I don't know if CRAN would accept such a package, or if you'd have to > > distribute it via GitHub, but R has excellent tools to facilitate the > > distribution of code via packages. Whether the R kernel exports enough > > functions to allow a package to take over event handling, I'm not > > sure. I was intending to look more into the details of this > > possibility but haven't had time. > > > > Best wishes, > > > > Frederick > > > > On Mon, Jul 25, 2016 at 02:15:59PM -0400, Daniel Greenidge wrote: > > > Hi all, > > > > > > I'm writing an interactive plotting function for viewing fMRI > > > datasets. Currently, I get keypresses using > > > grDevices::getGraphicsEvent(). > > > > > > Unfortunately getGraphicsEvent() only supports the X11(type="Xlib") > > > graphics device on Unix systems. The Xlib device doesn't support > > > buffering (i.e. dev.hold() and dev.flush()), so redrawing the plots > > > causes lots of flickering. > > > > > > Is there a way to get keypresses while using the cairo graphics > > > device? Alternatively, is there a way to prevent flickering with the > > > Xlib graphics device? > > > > > > Best, > > > Daniel Greenidge > > > > > > ______________________________________________ > > > R-devel@r-project.org mailing list > > > https://stat.ethz.ch/mailman/listinfo/r-devel > > > > > > > ______________________________________________ > > R-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-devel > > > > -- > Dr Paul Murrell > Department of Statistics > The University of Auckland > Private Bag 92019 > Auckland > New Zealand > 64 9 3737599 x85392 > p...@stat.auckland.ac.nz > http://www.stat.auckland.ac.nz/~paul/ > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
