Where does glyphs's geometry.width get set?

["ying lcs" <yinglcs gmail com>]

Hi,

Can you please tell me where does this property ' glyphs's geometry.width '?
glyphs->glyphs[i].geometry.width

I have seen it is been used in a lot of places, but I don't know where
it is getting set.

e.g. in basic-x.c:

basic_engine_shape (PangoEngineShape *engine,
		    PangoFont        *font,
		    const char       *text,
		    gint              length,
		    const PangoAnalysis *analysis,
		    PangoGlyphString *glyphs)

Thank you.