Re: Upright glyphs with combining marks in vertical text.

[Tavmjong Bah <tavmjong free fr>]

On Wed, 2017-09-06 at 12:24 -0700, Behdad Esfahbod wrote:
> Pictures please?

Attached.

> On Wed, Sep 6, 2017 at 12:07 PM, Tavmjong Bah <tavmjong free fr>
> wrote:
> > Hi,
> >
> > I've got two questions about rendering characters with combining
> > marks
> > (as one might have with CSS "writing-mode:vertical;text-
> > orientation:upright").
> >
> > It appears that Pango misplaces the marks as shown by:
> >
> > pango-view --annotate=2 --dpi=160 --gravity=east --gravity-
> > hint=strong
> > --rotate=-90 test-combining.txt
> >
> > where test-combining.txt has the following characters:
> >
> > G̃g̃X̃x̃
> >
> > 1. Is this a bug? Or am I doing something wrong?
> >
> > 2. Shouldn't the width in PangoGlyphGeometry be the vertical height
> > when typeset in upright vertical mode (with combining marks having
> > a
> > vertical height of zero)?
> >
> > Thanks,
> >
> > Tav

Attachment: combining_mark.png
Description: PNG image