Obtains the extents of the current line.
Extents are in layout coordinates (origin is the top-left corner of the entire `PangoLayout`). Thus the extents returned by this function will be the same width/height but not at the same x/y as the extents returned from [[email protected]_extents].
this |
a `PangoLayoutIter` |
ink_rect |
rectangle to fill with ink extents |
logical_rect |
rectangle to fill with logical extents |