Starting work on moving GUI to event system (doesnt compile)

src/GUIStuff/Elements/ColorPickerButton.decl.hpp

@@ -0,0 +1,20 @@
+#pragma once
+#include "Element.hpp"
+
+namespace GUIStuff {
+
+struct ColorPickerButtonData {
+    bool hasAlpha = false;
+    std::function<void()> onEdit;
+};
+
+template <typename T> class ColorPickerButton : public Element {
+    public:
+        ColorPickerButton(GUIManager& gui);
+        void layout(T* val, ColorPickerButtonData& d);
+    private:
+        ColorPickerButtonData data;
+        bool isOpen = false;
+};
+
+}