{ config, lib, pkgs, ... }: with lib; let cfg = config.programs.autorandr; matrixOf = n: m: elemType: mkOptionType rec { name = "matrixOf"; description = "${toString n}×${toString m} matrix of ${elemType.description}s"; check = xss: let listOfSize = l: xs: isList xs && length xs == l; in listOfSize n xss && all (xs: listOfSize m xs && all elemType.check xs) xss; merge = mergeOneOption; getSubOptions = prefix: elemType.getSubOptions (prefix ++ [ "*" "*" ]); getSubModules = elemType.getSubModules; substSubModules = mod: matrixOf n m (elemType.substSubModules mod); functor = (defaultFunctor name) // { wrapped = elemType; }; }; profileModule = types.submodule { options = { fingerprint = mkOption { type = types.attrsOf types.str; description = '' Output name to EDID mapping. Use autorandr --fingerprint to get current setup values. ''; default = { }; }; config = mkOption { type = types.attrsOf configModule; description = "Per output profile configuration."; default = { }; }; hooks = mkOption { type = profileHooksModule; description = "Profile hook scripts."; default = { }; }; }; }; configModule = types.submodule { options = { enable = mkOption { type = types.bool; description = "Whether to enable the output."; default = true; }; crtc = mkOption { type = types.nullOr types.ints.unsigned; description = "Output video display controller."; default = null; example = 0; }; primary = mkOption { type = types.bool; description = "Whether output should be marked as primary"; default = false; }; position = mkOption { type = types.str; description = "Output position"; default = ""; example = "5760x0"; }; mode = mkOption { type = types.str; description = "Output resolution."; default = ""; example = "3840x2160"; }; rate = mkOption { type = types.str; description = "Output framerate."; default = ""; example = "60.00"; }; panning = mkOption { type = types.str; description = "X11 panning specification ([width]x[height]+[x]+[y])."; default = ""; example = "3840x2160+0+0"; }; gamma = mkOption { type = types.str; description = "Output gamma configuration."; default = ""; example = "1.0:0.909:0.833"; }; rotate = mkOption { type = types.nullOr (types.enum [ "normal" "left" "right" "inverted" ]); description = "Output rotate configuration."; default = null; example = "left"; }; transform = mkOption { type = types.nullOr (matrixOf 3 3 types.float); default = null; example = literalExpression '' [ [ 0.6 0.0 0.0 ] [ 0.0 0.6 0.0 ] [ 0.0 0.0 1.0 ] ] ''; description = '' Refer to xrandr 1 for the documentation of the transform matrix. ''; }; dpi = mkOption { type = types.nullOr types.ints.positive; description = "Output DPI configuration."; default = null; example = 96; }; scale = mkOption { type = types.nullOr (types.submodule { options = { method = mkOption { type = types.enum [ "factor" "pixel" ]; description = "Output scaling method."; default = "factor"; example = "pixel"; }; x = mkOption { type = types.either types.float types.ints.positive; description = "Horizontal scaling factor/pixels."; }; y = mkOption { type = types.either types.float types.ints.positive; description = "Vertical scaling factor/pixels."; }; }; }); description = '' Output scale configuration. Either configure by pixels or a scaling factor. When using pixel method the xrandr 1 option --scale-from will be used; when using factor method the option --scale will be used. This option is a shortcut version of the transform option and they are mutually exclusive. ''; default = null; example = literalExpression '' { x = 1.25; y = 1.25; } ''; }; }; }; hookType = types.lines; globalHooksModule = types.submodule { options = { postswitch = mkOption { type = types.attrsOf hookType; description = "Postswitch hook executed after mode switch."; default = { }; }; preswitch = mkOption { type = types.attrsOf hookType; description = "Preswitch hook executed before mode switch."; default = { }; }; predetect = mkOption { type = types.attrsOf hookType; description = '' Predetect hook executed before autorandr attempts to run xrandr. ''; default = { }; }; }; }; profileHooksModule = types.submodule { options = { postswitch = mkOption { type = hookType; description = "Postswitch hook executed after mode switch."; default = ""; }; preswitch = mkOption { type = hookType; description = "Preswitch hook executed before mode switch."; default = ""; }; predetect = mkOption { type = hookType; description = '' Predetect hook executed before autorandr attempts to run xrandr. ''; default = ""; }; }; }; hookToFile = folder: name: hook: nameValuePair "autorandr/${folder}/${name}" { source = "${pkgs.writeShellScriptBin "hook" hook}/bin/hook"; }; profileToFiles = name: profile: with profile; mkMerge ([ { "autorandr/${name}/setup".text = concatStringsSep "\n" (mapAttrsToList fingerprintToString fingerprint); "autorandr/${name}/config".text = concatStringsSep "\n" (mapAttrsToList configToString profile.config); } (mkIf (hooks.postswitch != "") (listToAttrs [ (hookToFile name "postswitch" hooks.postswitch) ])) (mkIf (hooks.preswitch != "") (listToAttrs [ (hookToFile name "preswitch" hooks.preswitch) ])) (mkIf (hooks.predetect != "") (listToAttrs [ (hookToFile name "predetect" hooks.predetect) ])) ]); fingerprintToString = name: edid: "${name} ${edid}"; configToString = name: config: if config.enable then concatStringsSep "\n" ([ "output ${name}" ] ++ optional (config.position != "") "pos ${config.position}" ++ optional (config.crtc != null) "crtc ${toString config.crtc}" ++ optional config.primary "primary" ++ optional (config.dpi != null) "dpi ${toString config.dpi}" ++ optional (config.gamma != "") "gamma ${config.gamma}" ++ optional (config.mode != "") "mode ${config.mode}" ++ optional (config.panning != "") "panning ${config.panning}" ++ optional (config.rate != "") "rate ${config.rate}" ++ optional (config.rotate != null) "rotate ${config.rotate}" ++ optional (config.transform != null) ("transform " + concatMapStringsSep "," toString (flatten config.transform)) ++ optional (config.scale != null) ((if config.scale.method == "factor" then "scale" else "scale-from") + " ${toString config.scale.x}x${toString config.scale.y}")) else '' output ${name} off ''; in { options = { programs.autorandr = { enable = mkEnableOption "Autorandr"; hooks = mkOption { type = globalHooksModule; description = "Global hook scripts"; default = { }; example = literalExpression '' { postswitch = { "notify-i3" = "''${pkgs.i3}/bin/i3-msg restart"; "change-background" = readFile ./change-background.sh; "change-dpi" = ''' case "$AUTORANDR_CURRENT_PROFILE" in default) DPI=120 ;; home) DPI=192 ;; work) DPI=144 ;; *) echo "Unknown profle: $AUTORANDR_CURRENT_PROFILE" exit 1 esac echo "Xft.dpi: $DPI" | ''${pkgs.xorg.xrdb}/bin/xrdb -merge ''' }; } ''; }; profiles = mkOption { type = types.attrsOf profileModule; description = "Autorandr profiles specification."; default = { }; example = literalExpression '' { "work" = { fingerprint = { eDP1 = ""; DP1 = ""; }; config = { eDP1.enable = false; DP1 = { enable = true; crtc = 0; primary = true; position = "0x0"; mode = "3840x2160"; gamma = "1.0:0.909:0.833"; rate = "60.00"; rotate = "left"; }; }; hooks.postswitch = readFile ./work-postswitch.sh; }; } ''; }; }; }; config = mkIf cfg.enable { assertions = flatten (mapAttrsToList (profile: { config, ... }: mapAttrsToList (output: opts: { assertion = opts.scale == null || opts.transform == null; message = '' Cannot use the profile output options 'scale' and 'transform' simultaneously. Check configuration for: programs.autorandr.profiles.${profile}.config.${output} ''; }) config) cfg.profiles); home.packages = [ pkgs.autorandr ]; xdg.configFile = mkMerge ([ (mapAttrs' (hookToFile "postswitch.d") cfg.hooks.postswitch) (mapAttrs' (hookToFile "preswitch.d") cfg.hooks.preswitch) (mapAttrs' (hookToFile "predetect.d") cfg.hooks.predetect) (mkMerge (mapAttrsToList profileToFiles cfg.profiles)) ]); }; meta.maintainers = [ maintainers.uvnikita ]; }