Merging feature/commonsallayout branch

[Khaled Hosny]

Not directly, but you can now control OpenType features using the same
syntax used for OpenType features.

It should be easy to turn of ligatures in VCL when characters spacing is
used, except that character spacing is not applied by VCL but by the
client and we have no clue about it at all. I tried fixing this before,
but I couldn’t even figure out where character spacing is stored or when
it is applied.

Regards,
Khaled

On Mon, Oct 17, 2016 at 09:47:12PM +0200, Stephan van den Akker wrote:
> Congratulations when this gets merged! It's a big chunk of work.
> 
> One question is on my mind that I was meaning to ask before: Is issue
> tdf#66819 "Setting additional spacing between characters does not
> prevent automatic ligature substitution." solved in this branch?
> 
> Greetings,
> 
> Stephan
> 
> 2016-10-17 21:30 GMT+02:00 Khaled Hosny <khaledhosny at eglug.org>:
> > I believe that feature/commonsallayout (AKA unified text layout) is now
> > feature complete with no known major bugs, and should be ready to be
> > merged on master. I’ll try merge it tomorrow night and hope for the
> > best, unless someone objects loudly.
> >
> > Currently the new layout is off by default and can be enabled at runtime
> > by setting SAL_USE_COMMON_LAYOUT env variable. After merging with
> > master, I’m going to wait a week or so for any potential build issues
> > then swap the default.
> >
> > There are too main issues with the new code:
> > - Type 1 fonts are not supported. They can be supported with some
> >   effort, but Type 1 fonts have been obsolete for more than 15 years and
> >   I’d like to use this opportunity to drop support for them and cleanup
> >   some of the ugly code we have.
> > - We use a bit of DirectWrite to load fonts on Windows, so Windows XP is
> >   not supported as well. Again it can be fixed with some effort, but I
> >   don’t think anyone will miss XP. Ideally we should do a full switch to
> >   DirectWrite and modernise our Windows font rendering, but that is
> >   another story.
> >
> > Regards,
> > Khaled
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