Calculating bounding boxes for rendered fonts

["Ian King [ES]" <king eiffel com>]

Hi,

I need to be able to correctly calculate a bounding box for a string in 
a particular rendered font.  At the moment I am creating a PangoLayout 
with a particular string and font description, then calling 
pango_layout_get_pixel_size.  This seems to work when the rendered font 
is non-italic.  However, when I italicize the font description, the 
query to pango_layout_get_pixel_size returns the same value, even though 
the rendered font is wider than the returned dimensions.

Is there a way to accurately query the size of a rendered string so that 
I can return a bounding box that covers the entire font regardless of 
whether it is italicized or not.

Thanks for your time

Ian King