Package: cairo
CStruct cairo:font-extents-t
Declaration(cffi:defcstruct font-extents-t (ascent :double) (descent :double) (height :double) (max-xadvance :double) (max-yadvance :double)) Values
Details The cairo:font-extents-t structure stores metric information for a
font.
Values are given in the current user-space coordinate system. Because font
metrics are in user-space coordinates, they are mostly, but not entirely,
independent of the current transformation matrix. If you call (cairo:scale cr 2.0 2.0), text will be drawn twice as big, but the
reported text extents will not be doubled. They will change slightly due to
hinting, so you can not assume that metrics are independent of the
transformation matrix), but otherwise will remain unchanged. | See also |
2025-1-29