Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-12-08 Thread Paul Murrell 

Hi

Yes, we have regression tests for graphics.

In general, but especially for core R code, I would rather have 
confidence that a fix has not broken existing behaviour before I commit it.


I cannot argue with the point that we could respond to some bug reports 
faster.


Paul

On 09/12/16 12:58, frede...@ofb.net wrote:

Hi Paul,

Thanks for keeping me posted and letting me know what I should do.

Are there regression tests for other graphics functions in R? To me
that sounds a bit unnecessary. I think you get more testing from
people who use R; and having a good turnaround for applying patches
(some have been waiting 5 years) would invite better participation.

Thank you,

Frederick

On Fri, Dec 09, 2016 at 12:01:55PM +1300, Paul Murrell wrote:

Hi

Just taking a bit more of a look at this today (currently fixated on making
sure I can build some good regression tests).

The best thing you can do is to keep reminding me like this :)

Paul

On 09/12/16 11:19, frede...@ofb.net wrote:

Hi Paul,

Thanks for your efforts. Do you have an idea when my patch(es) might
be committed? Is there anything I can do to help move this along?

Thanks,

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:

Hi

The current status is that I am keen for people to contribute some testing
code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)

There were also some getGraphicsEvent() changes/fixes suggested by Richard
Bodewits (cc'ed), for which I am also seeking test code.

Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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/



--
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/



--
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/



--
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-12-08 Thread frederik 
Hi Paul,

Thanks for keeping me posted and letting me know what I should do.

Are there regression tests for other graphics functions in R? To me
that sounds a bit unnecessary. I think you get more testing from
people who use R; and having a good turnaround for applying patches
(some have been waiting 5 years) would invite better participation.

Thank you,

Frederick

On Fri, Dec 09, 2016 at 12:01:55PM +1300, Paul Murrell wrote:
> Hi
> 
> Just taking a bit more of a look at this today (currently fixated on making
> sure I can build some good regression tests).
> 
> The best thing you can do is to keep reminding me like this :)
> 
> Paul
> 
> On 09/12/16 11:19, frede...@ofb.net wrote:
> > Hi Paul,
> > 
> > Thanks for your efforts. Do you have an idea when my patch(es) might
> > be committed? Is there anything I can do to help move this along?
> > 
> > Thanks,
> > 
> > Frederick
> > 
> > On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:
> > > Hi
> > > 
> > > The current status is that I am keen for people to contribute some testing
> > > code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)
> > > 
> > > There were also some getGraphicsEvent() changes/fixes suggested by Richard
> > > Bodewits (cc'ed), for which I am also seeking test code.
> > > 
> > > Paul
> > > 
> > > On 13/11/16 09:00, frede...@ofb.net wrote:
> > > > 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
> >

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-12-08 Thread Paul Murrell 

Hi

Just taking a bit more of a look at this today (currently fixated on 
making sure I can build some good regression tests).


The best thing you can do is to keep reminding me like this :)

Paul

On 09/12/16 11:19, frede...@ofb.net wrote:

Hi Paul,

Thanks for your efforts. Do you have an idea when my patch(es) might
be committed? Is there anything I can do to help move this along?

Thanks,

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:

Hi

The current status is that I am keen for people to contribute some testing
code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)

There were also some getGraphicsEvent() changes/fixes suggested by Richard
Bodewits (cc'ed), for which I am also seeking test code.

Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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/



--
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/



--
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

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-12-08 Thread frederik 
Hi Paul,

Thanks for your efforts. Do you have an idea when my patch(es) might
be committed? Is there anything I can do to help move this along?

Thanks,

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:
> Hi
> 
> The current status is that I am keen for people to contribute some testing
> code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)
> 
> There were also some getGraphicsEvent() changes/fixes suggested by Richard
> Bodewits (cc'ed), for which I am also seeking test code.
> 
> Paul
> 
> On 13/11/16 09:00, frede...@ofb.net wrote:
> > 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/
> > > 
> 
> -- 
> 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

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-15 Thread Paul Murrell 

Hi

That sounds good - somewhere public like that would be best.

Thanks!

Paul

On 16/11/16 00:13, Mark O'Connell wrote:

Hi Paul,

No problem. Is it best if I post examples to the bug report 16951?

Kind regards,
Mark

--

Mark O'Connell, PhD student
Department of Mathematics & Statistics
231 Top Logic
National University of Ireland, Maynooth

- Paul Murrell  wrote:


Thanks Frederick.

Mark, if you have any examples to share, they would also be gratefully
received.

Paul

On 14/11/16 14:53, frede...@ofb.net wrote:

Hi Paul,

OK I tried not to make the examples too fancy.

Please let me know what you think. They should probably be amended to
support the Windows platform, but I think that task would be much
easier for someone with access to Windows...

By the way I'm Cc'ing Mark O'Connell who shared with me some great
getGraphicsEvent examples - well, I found them useful, perhaps if
these are going to the R distro somewhere, then his examples should be
included as well.

Thank you,

Frederick

On Mon, Nov 14, 2016 at 01:51:08PM +1300, Paul Murrell wrote:


Great.  Thanks!

Paul

On 14/11/16 13:41, frede...@ofb.net wrote:

Hi Paul,

Thank you, for some reason I didn't seem to get an email notification
for your bugzilla comment!

I will try to send you something shortly.

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:

Hi

The current status is that I am keen for people to contribute some testing
code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)

There were also some getGraphicsEvent() changes/fixes suggested by Richard
Bodewits (cc'ed), for which I am also seeking test code.

Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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/



--
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/



--
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-15 Thread Mark O'Connell 
Hi Paul,

No problem. Is it best if I post examples to the bug report 16951?

Kind regards,
Mark

--

Mark O'Connell, PhD student
Department of Mathematics & Statistics
231 Top Logic
National University of Ireland, Maynooth

- Paul Murrell  wrote:
> 
> Thanks Frederick.
> 
> Mark, if you have any examples to share, they would also be gratefully 
> received.
> 
> Paul
> 
> On 14/11/16 14:53, frede...@ofb.net wrote:
> > Hi Paul,
> >
> > OK I tried not to make the examples too fancy.
> >
> > Please let me know what you think. They should probably be amended to
> > support the Windows platform, but I think that task would be much
> > easier for someone with access to Windows...
> >
> > By the way I'm Cc'ing Mark O'Connell who shared with me some great
> > getGraphicsEvent examples - well, I found them useful, perhaps if
> > these are going to the R distro somewhere, then his examples should be
> > included as well.
> >
> > Thank you,
> >
> > Frederick
> >
> > On Mon, Nov 14, 2016 at 01:51:08PM +1300, Paul Murrell wrote:
> >>
> >> Great.  Thanks!
> >>
> >> Paul
> >>
> >> On 14/11/16 13:41, frede...@ofb.net wrote:
> >>> Hi Paul,
> >>>
> >>> Thank you, for some reason I didn't seem to get an email notification
> >>> for your bugzilla comment!
> >>>
> >>> I will try to send you something shortly.
> >>>
> >>> Frederick
> >>>
> >>> On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:
>  Hi
> 
>  The current status is that I am keen for people to contribute some 
>  testing
>  code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)
> 
>  There were also some getGraphicsEvent() changes/fixes suggested by 
>  Richard
>  Bodewits (cc'ed), for which I am also seeking test code.
> 
>  Paul
> 
>  On 13/11/16 09:00, frede...@ofb.net wrote:
> > 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?
> 
>

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-14 Thread Paul Murrell 


Thanks Frederick.

Mark, if you have any examples to share, they would also be gratefully 
received.


Paul

On 14/11/16 14:53, frede...@ofb.net wrote:

Hi Paul,

OK I tried not to make the examples too fancy.

Please let me know what you think. They should probably be amended to
support the Windows platform, but I think that task would be much
easier for someone with access to Windows...

By the way I'm Cc'ing Mark O'Connell who shared with me some great
getGraphicsEvent examples - well, I found them useful, perhaps if
these are going to the R distro somewhere, then his examples should be
included as well.

Thank you,

Frederick

On Mon, Nov 14, 2016 at 01:51:08PM +1300, Paul Murrell wrote:


Great.  Thanks!

Paul

On 14/11/16 13:41, frede...@ofb.net wrote:

Hi Paul,

Thank you, for some reason I didn't seem to get an email notification
for your bugzilla comment!

I will try to send you something shortly.

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:

Hi

The current status is that I am keen for people to contribute some testing
code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)

There were also some getGraphicsEvent() changes/fixes suggested by Richard
Bodewits (cc'ed), for which I am also seeking test code.

Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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/



--
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/



--
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/



--
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

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-13 Thread frederik 
Hi Paul,

OK I tried not to make the examples too fancy.

Please let me know what you think. They should probably be amended to
support the Windows platform, but I think that task would be much
easier for someone with access to Windows...

By the way I'm Cc'ing Mark O'Connell who shared with me some great
getGraphicsEvent examples - well, I found them useful, perhaps if
these are going to the R distro somewhere, then his examples should be
included as well.

Thank you,

Frederick

On Mon, Nov 14, 2016 at 01:51:08PM +1300, Paul Murrell wrote:
> 
> Great.  Thanks!
> 
> Paul
> 
> On 14/11/16 13:41, frede...@ofb.net wrote:
> > Hi Paul,
> > 
> > Thank you, for some reason I didn't seem to get an email notification
> > for your bugzilla comment!
> > 
> > I will try to send you something shortly.
> > 
> > Frederick
> > 
> > On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:
> > > Hi
> > > 
> > > The current status is that I am keen for people to contribute some testing
> > > code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)
> > > 
> > > There were also some getGraphicsEvent() changes/fixes suggested by Richard
> > > Bodewits (cc'ed), for which I am also seeking test code.
> > > 
> > > Paul
> > > 
> > > On 13/11/16 09:00, frede...@ofb.net wrote:
> > > > 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
> > > > > > > 
> > > > > > 
> > > > > >

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-13 Thread Paul Murrell 


Great.  Thanks!

Paul

On 14/11/16 13:41, frede...@ofb.net wrote:

Hi Paul,

Thank you, for some reason I didn't seem to get an email notification
for your bugzilla comment!

I will try to send you something shortly.

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:

Hi

The current status is that I am keen for people to contribute some testing
code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)

There were also some getGraphicsEvent() changes/fixes suggested by Richard
Bodewits (cc'ed), for which I am also seeking test code.

Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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/



--
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/



--
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

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-13 Thread frederik 
Hi Paul,

Thank you, for some reason I didn't seem to get an email notification
for your bugzilla comment!

I will try to send you something shortly.

Frederick

On Mon, Nov 14, 2016 at 08:55:20AM +1300, Paul Murrell wrote:
> Hi
> 
> The current status is that I am keen for people to contribute some testing
> code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)
> 
> There were also some getGraphicsEvent() changes/fixes suggested by Richard
> Bodewits (cc'ed), for which I am also seeking test code.
> 
> Paul
> 
> On 13/11/16 09:00, frede...@ofb.net wrote:
> > 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/
> > > 
> 
> -- 
> 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

Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-13 Thread Paul Murrell 

Hi

The current status is that I am keen for people to contribute some 
testing code (see https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16951)


There were also some getGraphicsEvent() changes/fixes suggested by 
Richard Bodewits (cc'ed), for which I am also seeking test code.


Paul

On 13/11/16 09:00, frede...@ofb.net wrote:

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

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--
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/



--
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/

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Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-11-12 Thread frederik 
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/
>

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Re: [Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-07-25 Thread frederik 
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
>

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[Rd] getGraphicsEvent() alternative for cairo graphics device?

2016-07-25 Thread Daniel Greenidge 
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

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