The SFML Button Library is a C++ library built using the SFML Graphics Library. It is designed to help developers create interactive and customizable button elements for their SFML-based projects. The library provides two button classes: RectButton and EllipseButton.

The library provides a Button base class and a RectButton derived class:

The Button class is a pure virtual class that defines the interface for all buttons in the library. It provides the following pure virtual methods:

• getButtonStatus(sf::RenderWindow&, sf::Event&): gets the current status of the button (hovered, pressed, etc.) based on user interaction with the button.
• draw(sf::RenderWindow&): draws the button on a given window.
• setButtonFont(sf::Font&): sets the font of the button label.
• setButtonLabel(const sf::Color&, float, std::string): sets the text, color, and size of the button label.

The Button class also provides the following member variables:

• isHover: a boolean indicating whether the button is currently being hovered over by the user.
• isPressed: a boolean indicating whether the button is currently being pressed by the user.
• isActive: a boolean indicating whether the button is currently active or not.
• autoSize: a boolean indicating whether the button should automatically resize to fit its label.
• buttonLabel: an sf::Text object representing the label of the button.
• mousePosWindow: an sf::Vector2i representing the current position of the mouse on the window.
• mousePosView: an sf::Vector2f representing the current position of the mouse on the view.
• buttonPos: an sf::Vector2f representing the position of the button.
• labelRect: an sf::FloatRect representing the rectangle bounding the button label.
• label: a string representing the text of the button label.

The RectButton class is a derived class of Button that provides a rectangular button implementation. It provides the following methods:

• RectButton(const sf::Vector2f): constructs a rectangular button object with the given size.
• RectButton(const sf::Vector2f, const sf::Vector2f): constructs a rectangular button object with the given size and position.
• RectButton(const sf::Vector2f, bool autoSize): constructs a rectangular button object with the given position, and optionally automatically sizes the button to fit its label.

The RectButton class also provides the following member variables:

• button: an sf::RectangleShape representing the rectangular shape of the button.
• buttonRect: an sf::FloatRect representing the rectangle bounding of the button.

The EllipseButton class is a derived class of Button that provides a elliptical button implementation. It provides the following methods:

• EllipseButton(float radius): construct a circular button object with the given radius.
• EllipseButton(float radius, const sf::Vector2f): construct a circular button object with the given radius and position.
• EllipseButton(const sf::Vector2f, bool autoSize): construct a circular button object with the given position, and optionally automatically sizes the button to fit its label.

The EllipseButton class also provides the following member variables:

• button:an sf::CircleShape representing the circular shape of the button.
• buttonRect: an sf::FloatRect representing the rectangle bounding of the button.

#include <SFML/Graphics.hpp>
#include "sfml_button.hpp"

int main()
{
    sf::RenderWindow window(sf::VideoMode(800, 600), "SFML Button Library");

    RectButton button(sf::Vector2f(150.f, 50.f), sf::Vector2f(325.f, 275.f));
    button.setButtonLabel(sf::Color::Black, 24.f, "Click me!");
    button.setButtonFont(buttonFont);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            button.getButtonStatus(window, event);

            if (event.type == sf::Event::Closed)
                window.close();

            if (button.isPressed)
                std::cout << "Button was pressed!" << std::endl;
        }

        window.clear(sf::Color::White);

        button.draw(window);

        window.display();
    }

    return 0;
}

SFML Button Library is a useful tool for developers looking to create customizable button elements for their SFML projects. However, it is still a work in progress, and the developers need to fix some of the limitations before it can be considered a complete library.