cairo-Font-Options {RGtk2} | R Documentation |
How a font should be rendered
cairoFontOptionsCreate()
cairoFontOptionsCopy(original)
cairoFontOptionsStatus(options)
cairoFontOptionsMerge(options, other)
cairoFontOptionsEqual(options, other)
cairoFontOptionsSetAntialias(options, antialias)
cairoFontOptionsGetAntialias(options)
cairoFontOptionsSetSubpixelOrder(options, subpixel.order)
cairoFontOptionsGetSubpixelOrder(options)
cairoFontOptionsSetHintStyle(options, hint.style)
cairoFontOptionsGetHintStyle(options)
cairoFontOptionsSetHintMetrics(options, hint.metrics)
cairoFontOptionsGetHintMetrics(options)
cairoFontOptions()
The font options specify how fonts should be rendered. Most of the time the font options implied by a surface are just right and do not need any changes, but for pixel-based targets tweaking font options may result in superior output on a particular display.
CairoFontOptions
Individual features of a CairoFontOptions
can be set or
accessed using functions named
cairo_font_options_set_feature_name and
cairo_font_options_get_feature_name, like
cairoFontOptionsSetAntialias
and
cairoFontOptionsGetAntialias
.
New features may be added to a CairoFontOptions
in the
future. For this reason, cairoFontOptionsCopy
,
cairoFontOptionsEqual
, cairoFontOptionsMerge
, and
cairoFontOptionsHash()
should be used to copy, check
for equality, merge, or compute a hash value of
CairoFontOptions
objects.
cairoFontOptions
is the equivalent of cairoFontOptionsCreate
.
CairoSubpixelOrder
CAIRO_ANTIALIAS_SUBPIXEL
.
default
rgb
bgr
vrgb
vbgr
CairoHintStyle
New entries may be added in future versions.
default
none
slight
medium
full
CairoHintMetrics
default
off
on
Derived by RGtkGen from GTK+ documentation
http://www.cairographics.org/manual/cairo-Font-Options.html