pangoContextGetMetrics {RGtk2} | R Documentation |
Get overall metric information for a particular font description. Since the metrics may be substantially different for different scripts, a language tag can be provided to indicate that the metrics should be retrieved that correspond to the script(s) used by that language.
pangoContextGetMetrics(object, desc, language = NULL)
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[PangoContext ] a PangoContext |
|
[PangoFontDescription ] a PangoFontDescription structure |
|
[PangoLanguage ] language tag used to determine which script to get the metrics
for. NULL means that the language tag from the context will
be used. If no language tag is set on the context, metrics
large enough to cover a range of languages will be returned.
The process of determining such metrics is slow, so it is best
to always make sure some real language tag will be used. |
The PangoFontDescription
is interpreted in the same way as
by pangoItemize
, and the family name may be a comma separated
list of figures. If characters from multiple of these families
would be used to render the string, then the returned fonts would
be a composite of the metrics for the fonts loaded for the
individual families.
[PangoFontMetrics
] a PangoFontMetrics
object.
Derived by RGtkGen from GTK+ documentation