[feat]: implement ui layer arch

1 files changed, 29 insertions, 0 deletions

diff --git a/src/ui/workspace.h b/src/ui/workspace.h
new file mode 100644
index 0000000..134d517
--- /dev/null
+++ b/src/ui/workspace.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "rendering/view.h"
+#include <string>
+
+namespace Donut
+{
+    class Scene;
+
+    // What a workspace gets each frame to build its panels. `scene` is mutable —
+    // workspaces edit the document through it.
+    struct UIContext
+    {
+        Scene&      scene;
+        std::string device_name;
+    };
+
+    // A Dorico-style workspace: one tab that owns its side panels and declares
+    // which viewport View it shows. Switching tabs switches both. Concrete
+    // workspaces (Setup / Scene / Simulation / Export) live in ui_layer.cpp.
+    class Workspace
+    {
+    public:
+        virtual ~Workspace() = default;
+        virtual auto name() const -> const char* = 0;
+        virtual auto view() const -> View = 0;
+        virtual auto on_ui(const UIContext& ctx) -> void = 0;
+    };
+}