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|
{ config, pkgs, lib, ... }:
with lib;
let fcBool = x: if x then "<bool>true</bool>" else "<bool>false</bool>";
in
{
options = {
fonts = {
fontconfig = {
ultimate = {
enable = mkOption {
type = types.bool;
default = true;
description = ''
Enable fontconfig-ultimate settings (formerly known as
Infinality). Besides the customizable settings in this NixOS
module, fontconfig-ultimate also provides many font-specific
rendering tweaks.
'';
};
allowBitmaps = mkOption {
type = types.bool;
default = true;
description = ''
Allow bitmap fonts. Set to <literal>false</literal> to ban all
bitmap fonts.
'';
};
allowType1 = mkOption {
type = types.bool;
default = false;
description = ''
Allow Type-1 fonts. Default is <literal>false</literal> because of
poor rendering.
'';
};
useEmbeddedBitmaps = mkOption {
type = types.bool;
default = false;
description = ''Use embedded bitmaps in fonts like Calibri.'';
};
forceAutohint = mkOption {
type = types.bool;
default = false;
description = ''
Force use of the TrueType Autohinter. Useful for debugging or
free-software purists.
'';
};
renderMonoTTFAsBitmap = mkOption {
type = types.bool;
default = false;
description = ''Render some monospace TTF fonts as bitmaps.'';
};
substitutions = mkOption {
type = types.str // {
check = flip elem ["none" "free" "combi" "ms"];
};
default = "free";
description = ''
Font substitutions to replace common Type 1 fonts with nicer
TrueType fonts. <literal>free</literal> uses free fonts,
<literal>ms</literal> uses Microsoft fonts,
<literal>combi</literal> uses a combination, and
<literal>none</literal> disables the substitutions.
'';
};
rendering = mkOption {
type = types.attrs;
default = pkgs.fontconfig-ultimate.rendering.ultimate;
description = ''
FreeType rendering settings presets. The default is
<literal>pkgs.fontconfig-ultimate.rendering.ultimate</literal>.
The other available styles are:
<literal>ultimate-lighter</literal>,
<literal>ultimate-darker</literal>,
<literal>ultimate-lightest</literal>,
<literal>ultimate-darkest</literal>,
<literal>default</literal> (the original Infinality default),
<literal>osx</literal>,
<literal>ipad</literal>,
<literal>ubuntu</literal>,
<literal>linux</literal>,
<literal>winxplight</literal>,
<literal>win7light</literal>,
<literal>winxp</literal>,
<literal>win7</literal>,
<literal>vanilla</literal>,
<literal>classic</literal>,
<literal>nudge</literal>,
<literal>push</literal>,
<literal>shove</literal>,
<literal>sharpened</literal>,
<literal>infinality</literal>. Any of the presets may be
customized by editing the attributes. To disable, set this option
to the empty attribute set <literal>{}</literal>.
'';
};
};
};
};
};
config =
let ultimate = config.fonts.fontconfig.ultimate;
fontconfigUltimateConf = ''
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
${optionalString (!ultimate.allowBitmaps) ''
<!-- Reject bitmap fonts -->
<selectfont>
<rejectfont>
<pattern>
<patelt name="scalable"><bool>false</bool></patelt>
</pattern>
</rejectfont>
</selectfont>
''}
${optionalString ultimate.allowType1 ''
<!-- Reject Type 1 fonts -->
<selectfont>
<rejectfont>
<pattern>
<patelt name="fontformat">
<string>Type 1</string>
</patelt>
</pattern>
</rejectfont>
</selectfont>
''}
<!-- Use embedded bitmaps in fonts like Calibri? -->
<match target="font">
<edit name="embeddedbitmap" mode="assign">
${fcBool ultimate.useEmbeddedBitmaps}
</edit>
</match>
<!-- Force autohint always -->
<match target="font">
<edit name="force_autohint" mode="assign">
${fcBool ultimate.forceAutohint}
</edit>
</match>
<!-- Render some monospace TTF fonts as bitmaps -->
<match target="pattern">
<edit name="bitmap_monospace" mode="assign">
${fcBool ultimate.renderMonoTTFAsBitmap}
</edit>
</match>
${optionalString (ultimate.substitutions != "none") ''
<!-- Type 1 font substitutions -->
<include ignore_missing="yes">${pkgs.fontconfig-ultimate.confd}/etc/fonts/presets/${ultimate.substitutions}</include>
''}
<include ignore_missing="yes">${pkgs.fontconfig-ultimate.confd}/etc/fonts/conf.d</include>
</fontconfig>
'';
in mkIf (config.fonts.fontconfig.enable && ultimate.enable) {
environment.etc."fonts/conf.d/52-fontconfig-ultimate.conf" = {
text = fontconfigUltimateConf;
};
environment.etc."fonts/${pkgs.fontconfig.configVersion}/conf.d/52-fontconfig-ultimate.conf" = {
text = fontconfigUltimateConf;
};
environment.variables = ultimate.rendering;
};
}
|