Updates:
Labels: -Patch
Comment #14 on issue 838 by pnorcks: Inconsistency in tests output size
http://code.google.com/p/lilypond/issues/detail?id=838
Thanks Han-Wen.
Yes, the Pango_font objects are stored in a hash table (pango_dict_) which
is a
member of All_font_metrics.
The problem, as I see it right now, is that the PangoFontDescription passed
to
All_font_metrics::find_pango_font() does not reflect the state of an
already-processed Pango_font object. As a result, Pango_font objects may
be reused
too often.
In pango-font.cc, Pango may split a bidirectional markup string into
multiple pieces
(with a PangoLayout), and each piece can theoretically use a different
font, so the
original PangoFontDescription would no longer contain enough information to
effectively choose a Pango_font object.
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