WidgetsNew Initial

WidgetsNew/public/RootWidget.hpp

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+#pragma once
+
+#include "Widget.hpp"
+
+namespace tp {
+	class RootWidget {
+
+		// path from leaf to root of widgets that need to be updated
+		struct ActivePath {
+			struct ActiveNode {
+				Widget* widget = nullptr;
+				Vec2F globalPos;
+			};
+
+			Buffer<ActiveNode> path;
+		};
+
+
+	public:
+		RootWidget() = default;
+
+		void setRootWidget(Widget* widget);
+
+		void processFrame(EventHandler* events, const RectF& screenArea);
+		void drawFrame(Canvas& canvas);
+
+		[[nodiscard]] bool needsUpdate() const;
+
+		static void setWidgetArea(Widget& widget, const RectF& rect);
+
+	private:
+		void updateActivePaths(Buffer<ActivePath>* activePaths, const Vec2F& pointer);
+		void drawRecursion(Canvas& canvas, Widget* active, const Vec2F& pos);
+
+		void processPaths(const Buffer<ActivePath>& path, EventHandler& events);
+		void clearProcessedFlag(const Buffer<ActivePath>& paths);
+
+	private:
+		Widget* mRoot = nullptr;
+
+		Buffer<Widget*> mActiveWidgets;
+		Buffer<ActivePath> mActivePaths[2]; // current and prev
+		bool mFlipFlop = false;
+
+		bool mNeedUpdate = false;
+	};
+}