added drop shadows

src/render/decorations/CHyprDropShadowDecoration.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "IHyprWindowDecoration.hpp"
+
+class CHyprDropShadowDecoration : public IHyprWindowDecoration {
+public:
+    CHyprDropShadowDecoration(CWindow*);
+    virtual ~CHyprDropShadowDecoration();
+
+    virtual SWindowDecorationExtents getWindowDecorationExtents();
+
+    virtual void draw(SMonitor*);
+
+    virtual eDecorationType getDecorationType();
+
+    virtual void updateWindow(CWindow*);
+
+    virtual void damageEntire();
+
+private:
+    SWindowDecorationExtents    m_seExtents;
+
+    CWindow*                    m_pWindow = nullptr;
+
+    Vector2D                    m_vLastWindowPos;
+    Vector2D                    m_vLastWindowSize;
+};