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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.qt5;
isQGnome = cfg.platformTheme == "gnome" && builtins.elem cfg.style ["adwaita" "adwaita-dark"];
isQtStyle = cfg.platformTheme == "gtk2" && !(builtins.elem cfg.style ["adwaita" "adwaita-dark"]);
isQt5ct = cfg.platformTheme == "qt5ct";
isLxqt = cfg.platformTheme == "lxqt";
isKde = cfg.platformTheme == "kde";
packages = if isQGnome then [ pkgs.qgnomeplatform pkgs.adwaita-qt ]
else if isQtStyle then [ pkgs.libsForQt5.qtstyleplugins ]
else if isQt5ct then [ pkgs.libsForQt5.qt5ct ]
else if isLxqt then [ pkgs.lxqt.lxqt-qtplugin pkgs.lxqt.lxqt-config ]
else if isKde then [ pkgs.libsForQt5.plasma-integration pkgs.libsForQt5.systemsettings ]
else throw "`qt5.platformTheme` ${cfg.platformTheme} and `qt5.style` ${cfg.style} are not compatible.";
in
{
meta.maintainers = [ maintainers.romildo ];
options = {
qt5 = {
enable = mkEnableOption "Qt5 theming configuration";
platformTheme = mkOption {
type = types.enum [
"gtk2"
"gnome"
"lxqt"
"qt5ct"
"kde"
];
example = "gnome";
relatedPackages = [
"qgnomeplatform"
["libsForQt5" "qtstyleplugins"]
["libsForQt5" "qt5ct"]
["lxqt" "lxqt-qtplugin"]
["libsForQt5" "plasma-integration"]
];
description = lib.mdDoc ''
Selects the platform theme to use for Qt5 applications.
The options are
- `gtk`: Use GTK theme with [qtstyleplugins](https://github.com/qt/qtstyleplugins)
- `gnome`: Use GNOME theme with [qgnomeplatform](https://github.com/FedoraQt/QGnomePlatform)
- `lxqt`: Use LXQt style set using the [lxqt-config-appearance](https://github.com/lxqt/lxqt-config)
application.
- `qt5ct`: Use Qt style set using the [qt5ct](https://sourceforge.net/projects/qt5ct/)
application.
- `kde`: Use Qt settings from Plasma.
'';
};
style = mkOption {
type = types.enum [
"adwaita"
"adwaita-dark"
"cleanlooks"
"gtk2"
"motif"
"plastique"
];
example = "adwaita";
relatedPackages = [
"adwaita-qt"
["libsForQt5" "qtstyleplugins"]
];
description = lib.mdDoc ''
Selects the style to use for Qt5 applications.
The options are
- `adwaita`, `adwaita-dark`: Use Adwaita Qt style with
[adwaita](https://github.com/FedoraQt/adwaita-qt)
- `cleanlooks`, `gtk2`, `motif`, `plastique`: Use styles from
[qtstyleplugins](https://github.com/qt/qtstyleplugins)
'';
};
};
};
config = mkIf cfg.enable {
environment.variables.QT_QPA_PLATFORMTHEME = cfg.platformTheme;
environment.variables.QT_STYLE_OVERRIDE = mkIf (! (isQt5ct || isLxqt || isKde)) cfg.style;
environment.systemPackages = packages;
};
}
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