gui.hpp

#pragma once

#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include <stdint.h>
#include <functional>
#include <vector>
#include <memory>

namespace GUI
{

	class GuiElement
	{

	public:
		GuiElement(const sf::String& _name, uint32_t _x, uint32_t _y, 
			std::function<void()> _onClick = [](){});
		virtual ~GuiElement() {}

		virtual void draw(sf::RenderWindow& _window);
		void process();
		void activate(sf::Event::KeyEvent *sf_key_event);
		// virtual void activate(sf::Event::MouseButtonEvent *_sf_mouse_button_event){};
		// virtual void activate(sf::Event::TextEvent *_text_event){};
		// virtual void activate(sf::Event::JoystickButtonEvent *_joy_button_event){};
		// virtual unsigned int get_state(){return state;};
		// virtual void set_state(unsigned int _state){state=_state;};
		void click() { if (m_onClick) m_onClick(); }

		void unfocus(){m_cback = sf::Color::White;};
		void focus(){m_cfront = m_cback = sf::Color::Yellow;};
		void setText(const sf::String& _name){m_text.setString(_name);}
		void setPosition(sf::Vector2f _pos) { m_text.setPosition(_pos); }
	protected:
		sf::Color m_cfront, m_cback;
		sf::Text m_text;
		sf::Font m_font;

		std::function<void()> m_onClick;
	};

	//element with two labels
	class ExtGuiElement : public GuiElement
	{
	public:
		ExtGuiElement(const sf::String& _name, uint32_t _x, uint32_t _y,
			std::function<void()> _onClick = [](){}, sf::Vector2f _vec = sf::Vector2f(0.f,0.f));

		virtual void draw(sf::RenderWindow& _window);
		//relative to the first label
		void setPosition2(sf::Vector2f _pos) { m_text2.setPosition(m_text.getPosition() + _pos); };
		void setText2(const sf::String& _text) { m_text2.setString(_text); }
	private:
		sf::Text m_text2;
	};

	using ElContainer = std::vector<std::unique_ptr<GuiElement>>;

	class Gui : public ElContainer
	{
	public:
		Gui();
		void init();

		void draw(sf::RenderWindow& _window);

		void process();
		void processEvents(sf::Event& _event);
	private:
		void prev();
		void next();

		bool m_controllerMove; //controller y-axis
		ElContainer::iterator m_currentElement;

		sf::Sound m_buttonSound;
	};
}