[Rd] New version of X11, png and jpeg

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Feb 26 16:09:59 CET 2008

On Tue, 26 Feb 2008, Michael Lawrence wrote:

> On Tue, Feb 26, 2008 at 8:18 AM, Prof Brian Ripley <ripley at stats.ox.ac.uk>
> wrote:
>> Revision r44621 supports (in a limited way) cairo 1.0 and hence I believe
>> vanilla FC5 -- I found what purports to be a vanilla FC5 box and it works
>> quite well there.
>> Two people have reported that the svg(), cairo-pdf() and cairo-ps()
>> devices produce blank (but not empty) files.  I was able to confirm that
>> on Debian etch (cairo 1.2.4).  They do work on cairo 1.4.14 (F8) and
>> better on a 1.5.10 snapshot.
> My intuition is that there is a missing call to cairo_show_page(). I believe
> this became unnecessary in the 1.4.x series. This should probably be called
> any time there is new page (after the first) and when the device is closed.

Yes, you are quite right (and of course the 1.5.x docs I was reading 
didn't say it was needed).  Unfortunately, that only defers the problems 
as fonts are not handled correctly in 1.2.x, at least on my test machine.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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