Refactor done

WidgetsNew/public/Widget.hpp

@@ -1,32 +1,41 @@
 #pragma once
 
 #include "SpringAnimations.hpp"
-#include "LayoutPolicies.hpp"
+#include "LayoutManager.hpp"
 
 #include "EventHandler.hpp"
 #include "Graphics.hpp"
 
 #include <vector>
+#include <functional>
 
 namespace tp {
 	class WidgetManagerInterface;
 	class WidgetLayout;
+	class LayoutManager;
+	class RootWidget;
 
 	class Widget {
-		friend class RootWidget;
+		friend RootWidget;
+		friend LayoutManager;
 
 	public:
 		Widget();
 		virtual ~Widget();
 
-		void addChild(Widget* child);
+		void addChild(Widget* child, bool front = false);
 		void removeChild(Widget* child);
 
 		void bringToFront();
 		void bringToBack();
 
 		void setLayout(WidgetLayout* layout);
+		void setSizePolicy(SizePolicy x, SizePolicy y) { getLayout()->setSizePolicy(x, y); }
+
 		WidgetLayout* getLayout();
+		const WidgetLayout* getLayout() const;
+
+		void triggerWidgetUpdate(const char* reason = nullptr);
 
 	protected:
 		virtual void process(const EventHandler& events) {}
@@ -45,20 +54,34 @@ namespace tp {
 	protected:
 		void setDebug(const char* name, RGBA col);
 		WidgetManagerInterface* getRoot();
-		void triggerWidgetUpdate(const char* reason = nullptr);
 
 	public:
 		[[nodiscard]] RectF getArea() const;
 		[[nodiscard]] RectF getAreaT() const;
-		[[nodiscard]] const RectF& getAreaCache() const;
+		// [[nodiscard]] const RectF& getAreaCache() const;
 
 		[[nodiscard]] RectF getRelativeArea() const;
 		[[nodiscard]] RectF getRelativeAreaT() const;
-		[[nodiscard]] RectF getRelativeAreaCache() const;
+		// [[nodiscard]] RectF getRelativeAreaCache() const;
 
 		void setArea(const RectF& area);
 		void setAreaCache(const RectF& area);
 
+	private:
+		using DFSAction = std::function<void(Widget*)>;
+
+		static void dfs(Widget* iter, const DFSAction& before, const DFSAction& after = [](auto){}) {
+			if (!iter->mNeedsProcessing) return;
+
+			before(iter);
+
+			for (auto child : iter->mDepthOrder) {
+				dfs(child.data(), before, after);
+			}
+
+			after(iter);
+		}
+
 	protected:
 		friend WidgetLayout;
 
@@ -73,7 +96,10 @@ namespace tp {
 
 		WidgetLayout* mLayout = nullptr;
 
+		// TODO : make bitfield processing flags
 		bool mInFocus = false;
+		bool mNeedsProcessing = false;
+		bool mTriggered = false;
 
 		// debug
 		struct {