[Octave-bug-tracker] [bug #43907] OpenGL render code called even when gnuplot is graphics_toolkit

[John W. Eaton]

Follow-up Comment #23, bug #43907 (project octave):

On my system, "arial" ultimately becomes "Liberation Sans" so that's what the
ft_render class sees as the font.

@rik: aren't we already iterating over the string one character at a time to
find the glyphs?

Would something like the attached patch work OK?

In addition to trying a font substitution, we could also just use a space
character if we are computing the bounding box and the font doesn't have the
requested character.  It seems like that would be reasonable since it is
probably OK in most cases if the bounding box is not perfect.

(file #34356)
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