Clean project structure.

src/ui/ui_elements/desktop_elements/IPlatformWindow.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <memory>
+
+namespace mt
+{
+    class Screen;
+    class Window;
+}
+
+class IPlatformSurface
+{
+public:
+    virtual ~IPlatformSurface() = default;
+    virtual void beforePaint(mt::Screen* screen) = 0;
+    virtual void afterPaint(mt::Screen* screen) = 0;
+};
+
+class IPlatformWindow : public IPlatformSurface
+{
+public:
+    IPlatformWindow(mt::Window* window)
+        : mWindow(window)
+    {
+
+    }
+
+    virtual ~IPlatformWindow() = default;
+
+    virtual void show() = 0;
+
+    virtual void map() = 0;
+
+    virtual void clear() = 0;
+
+    virtual void onResize(unsigned width, unsigned height) = 0;
+protected:
+    mt::Window* mWindow{nullptr};
+};
+
+using IPlatformWindowPtr = std::unique_ptr<IPlatformWindow>;