#ifndef OSDTEXT_HH

#define OSDTEXT_HH

#include "OSDImageBasedWidget.hh"

#include "TTFFont.hh"

#include "stl.hh"

#include <array>

#include <cstdint>

#include <memory>

namespace openmsx {

class OSDText final : public OSDImageBasedWidget

{

private:

	static constexpr auto textProperties = [] {

		using namespace std::literals;

		return concatArray(

			imageBasedProperties,

			std::array{

				"-text"sv, "-font"sv, "-fontfaceindex"sv, "-size"sv,

				"-wrap"sv, "-wrapw"sv, "-wraprelw"sv,

			});

	}();

public:

	OSDText(Display& display, const TclObject& name);

	[[nodiscard]] std::span<const std::string_view> getProperties() const override {

		return textProperties;

	}

	void setProperty(Interpreter& interp,

	                 std::string_view name, const TclObject& value) override;

	void getProperty(std::string_view name, TclObject& result) const override;

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

private:

	void invalidateLocal() override;

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

	[[nodiscard]] uint8_t getFadedAlpha() const override;

	[[nodiscard]] std::unique_ptr<GLImage> create(OutputSurface& output) override;

	template<typename FindSplitPointFunc, typename CantSplitFunc>

	[[nodiscard]] size_t split(const std::string& line, unsigned maxWidth,

		FindSplitPointFunc findSplitPoint, CantSplitFunc cantSplit,

		bool removeTrailingSpaces) const;

	[[nodiscard]] size_t splitAtChar(const std::string& line, unsigned maxWidth) const;

	[[nodiscard]] size_t splitAtWord(const std::string& line, unsigned maxWidth) const;

	[[nodiscard]] std::string getCharWrappedText(const std::string& txt, unsigned maxWidth) const;

	[[nodiscard]] std::string getWordWrappedText(const std::string& txt, unsigned maxWidth) const;

private:

	enum WrapMode : uint8_t { NONE, WORD, CHAR };

	std::string text;

	std::string fontFile;

	TTFFont font;

	int size = 12;

	int fontFaceIndex = 0;

	WrapMode wrapMode = NONE;

	float wrapw = 0.0f, wraprelw = 1.0f;

	friend struct SplitAtChar;

};

} // namespace openmsx

#endif