1 files changed, 74 insertions, 0 deletions
diff --git a/modules/desktop/nixos/qt.nix b/modules/desktop/nixos/qt.nix
new file mode 100644
index 0000000..f65e361
--- /dev/null
+++ b/modules/desktop/nixos/qt.nix
@@ -0,0 +1,74 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: let
+  isCatppuccin = config.collinux.theme == "catppuccin";
+  useQtDesktop = config.collinux.desktop.wm.sway.enable || config.collinux.desktop.wm.niri.enable;
+in
+  lib.mkIf useQtDesktop {
+    qt = {
+      enable = true;
+      platformTheme = "kde";
+      style = "kvantum";
+    };
+
+    environment.systemPackages = lib.optionals isCatppuccin [
+      pkgs.papirus-icon-theme
+      (pkgs.catppuccin-kde.override {
+        flavour = ["mocha"];
+        accents = ["blue"];
+        winDecStyles = ["modern"];
+      })
+      (pkgs.catppuccin-kvantum.override {
+        variant = "mocha";
+        accent = "blue";
+      })
+    ];
+
+    environment.pathsToLink = lib.optionals isCatppuccin [
+      "/share/color-schemes"
+      "/share/Kvantum"
+    ];
+
+    environment.sessionVariables = lib.optionalAttrs isCatppuccin {
+      KVANTUM_THEME = "catppuccin-mocha-blue";
+    };
+
+    systemd.user.extraConfig = lib.optionalString isCatppuccin ''
+      DefaultEnvironment=KVANTUM_THEME=catppuccin-mocha-blue
+      DefaultEnvironment=QT_STYLE_OVERRIDE=kvantum
+      DefaultEnvironment=QT_QPA_PLATFORMTHEME=kde
+      DefaultEnvironment=KDE_COLOR_SCHEME=CatppuccinMochaBlue
+    '';
+
+    systemd.user.services.plasma-xdg-desktop-portal-kde = lib.mkIf isCatppuccin {
+      overrideStrategy = "asDropin";
+      serviceConfig.Environment = [
+        "XDG_CURRENT_DESKTOP=KDE"
+        "QT_QPA_PLATFORMTHEME=kde"
+        "QT_STYLE_OVERRIDE=kvantum"
+        "KVANTUM_THEME=catppuccin-mocha-blue"
+        "KDE_COLOR_SCHEME=CatppuccinMochaBlue"
+      ];
+    };
+
+    hjem.users."${config.collinux.user.name}".xdg.config.files = lib.optionalAttrs isCatppuccin {
+      "Kvantum/kvantum.kvconfig".text = ''
+        [General]
+        theme=catppuccin-mocha-blue
+      '';
+
+      "kdeglobals".text = ''
+        [General]
+        ColorScheme=CatppuccinMochaBlue
+
+        [Icons]
+        Theme=Papirus
+
+        [KDE]
+        widgetStyle=kvantum
+      '';
+    };
+  }