but *sob*, it's not really that, because there's a dialog scale factor which is
per-language which adds a bit to it depending on the language, MAP_REALAPPFONT
is the unscaled variant.
but *head in hands*, it's not really that either because if the font was
considered "too narrow" then the average char width is recalculated in terms of
the average char height.
*clenches teeth*, add a approximate_char_width and use it directly. It can be
considered the rough equivalent of
pango_font_metrics_get_approximate_char_width albeit that it retains the same
crude 1/8 of the width of "aemnnxEM"
Change-Id: I4c135ca03467447dddf279ac0c187b13371acadb
