#ifndef OSDTOPWIDGET_HH

#define OSDTOPWIDGET_HH

#include "OSDWidget.hh"

#include "TclObject.hh"

#include "hash_set.hh"

#include <ranges>

#include <string>

#include <vector>

namespace openmsx {

class OSDTopWidget final : public OSDWidget

{

public:

	explicit OSDTopWidget(Display& display);

	[[nodiscard]] std::string_view getType() const override;

	[[nodiscard]] gl::vec2 getSize(const OutputSurface& output) const override;

	[[nodiscard]] bool isVisible() const override;

	[[nodiscard]] bool isRecursiveFading() const override;

	void queueError(std::string message);

	void showAllErrors();

	[[nodiscard]]       OSDWidget* findByName(std::string_view name);

	[[nodiscard]] const OSDWidget* findByName(std::string_view name) const;

	void addName(OSDWidget& widget);

	void removeName(OSDWidget& widget);

	[[nodiscard]] auto getAllWidgetNames() const {

		return std::views::transform(widgetsByName,

			[](auto* p) -> std::string_view { return p->getName(); });

	}

protected:

	void invalidateLocal() override;

	void paint(OutputSurface& output) override;

private:

	std::vector<std::string> errors;

	struct NameFromWidget {

		[[nodiscard]] std::string_view operator()(const OSDWidget* w) const {

			return w->getName();

		}

	};

	hash_set<OSDWidget*, NameFromWidget, XXTclHasher> widgetsByName;

};

} // namespace openmsx

#endif