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Correct statement about ftcr and recommend HarfBuzz

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* doc/lispref/frames.texi (Font and Color Parameters): Correct
statement about availability of ftcr in the presence of HarfBuzz.
Recommend HarfBuzz.
This commit is contained in:
Robert Pluim 2020-01-21 18:18:32 +01:00
parent 4aec94da37
commit 7e37e61f4b
1 changed files with 11 additions and 11 deletions
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22
doc/lispref/frames.texi
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@ -2300,17 +2300,17 @@ available font backends: @code{x} (the X core font driver), @code{xft}
HarfBuzz text shaping). If built with Cairo drawing, there are also
three potentially available font backends on X: @code{x}, @code{ftcr}
(the FreeType font driver on Cairo), and @code{ftcrhb} (the FreeType
font driver on Cairo with HarfBuzz text shaping). Note that the
@code{ftcr} and @code{ftcrhb} drivers are mutually exclusive (and
similarly for @code{xft} and @code{xfthb}), with the choice being made
at build time. On MS-Windows, there are currently three available
font backends: @code{gdi} (the core MS-Windows font driver),
@code{uniscribe} (font driver for OTF and TTF fonts with text shaping
by the Uniscribe engine), and @code{harfbuzz} (font driver for OTF and
TTF fonts with HarfBuzz text shaping) (@pxref{Windows Fonts,,, emacs,
The GNU Emacs Manual}). On other systems, there is only one available
font backend, so it does not make sense to modify this frame
parameter.
font driver on Cairo with HarfBuzz text shaping). When Emacs is built
with HarfBuzz, the default font driver is @code{ftcrhb}, although use
of the @code{ftcr} driver is still possible, but not recommended. On
MS-Windows, there are currently three available font backends:
@code{gdi} (the core MS-Windows font driver), @code{uniscribe} (font
driver for OTF and TTF fonts with text shaping by the Uniscribe
engine), and @code{harfbuzz} (font driver for OTF and TTF fonts with
HarfBuzz text shaping) (@pxref{Windows Fonts,,, emacs, The GNU Emacs
Manual}). The @code{harfbuzz} driver is similarly recommended. On
other systems, there is only one available font backend, so it does
not make sense to modify this frame parameter.
@vindex background-mode@r{, a frame parameter}
@item background-mode