Previously, Writer performed shaping for each span of text separately.
In certain situations, this caused incorrect glyph use, or incorrect
glyph positioning. This change updates Writer so it will also consider
neighboring text while performing shaping.
This change resolves the outstanding duplicates filed against tdf#61444.
As a side effect, this change also fixes tdf#134226.
In addition to the shaping fix, this change implements rendering for
individually-styled glyphs, which is required to fix tdf#71956. However,
this change does not implement diacritic selection, which is also
required for that issue.
Change-Id: Iab4774ffaab5ad6113778c54d02cb260a70c1010
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167699
Reviewed-by: Jonathan Clark <jonathan@libreoffice.org>
Tested-by: Jenkins
ab0a4543ca