M nix/bin/default.nix → nix/bin/default.nix

@@ -48,6 +48,9 @@ # uploader = import ./up.nix pkgs;
 
   # battery script
   battery = import ./battery.nix pkgs;
+
+  # invert screen
+  invert = import ./invert.nix pkgs;
 in
 [
   git-new-push-remote
@@ -58,4 +61,5 @@ record
   battery
   bar
   xurls
+  invert
 ]

A nix/bin/invert.nix

@@ -0,0 +1,24 @@
+{ pkgs, ... }:
+
+let
+  xrandr = "${pkgs.xorg.xrandr}/bin/xrandr";
+  xinput = "${pkgs.xorg.xinput}/bin/xinput";
+in
+pkgs.writeShellScriptBin "invert"
+  ''
+    orientation="$(${xrandr} --query --verbose | grep eDP | cut -d ' ' -f 6)"
+    if [[ "$orientation" == "normal" ]];
+    then
+      echo "turning screen upside down..."
+      ${xrandr} -o inverted
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82' 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82 Stylus Pen (0)' 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82 Stylus Eraser (0)' 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1
+    else
+      echo "reverting back to normal..."
+      ${xrandr} -o normal
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82 Stylus Pen (0)' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1
+      ${xinput} set-prop 'ELAN9008:00 04F3:2C82 Stylus Eraser (0)' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1
+    fi
+  ''