#include <string>

class Button {
    double _x = 0, _y = 0;
    double _w = 100, _h = 50;
    std::string _text;
    void (*_on_click)() = nullptr;

   public:
    Button() = default;
    std::pair<double, double> position() const { return {_x, _y}; }
    void setPosition(double x, double y) { _x = x; _y = y; }
    std::pair<double, double> size() const { return {_w, _h}; }
    void setSize(double w, double h) { _w = w; _h = h; }
    const std::string& text() const { return _text; }
    void setText(const std::string& text) { _text = text; }
    void setOnClick(void (*fn)()) { _on_click = fn; }
    void click() {
        _on_click();
    }
    void draw();
};

class ToggleButton {
    double _x = 0, _y = 0;
    double _w = 100, _h = 50;
    std::string _text;
    void (*_on_click)() = nullptr;
    bool _toggled = false;

   public:
    ToggleButton() = default;
    std::pair<double, double> position() const { return {_x, _y}; }
    void setPosition(double x, double y) { _x = x; _y = y; }
    std::pair<double, double> size() const { return {_w, _h}; }
    void setSize(double w, double h) { _w = w; _h = h; }
    const std::string& text() const { return _text; }
    void setText(const std::string& text) { _text = text; }
    void setOnClick(void (*fn)()) { _on_click = fn; }
    void click() {
        _toggled = !_toggled;
        _on_click();
    }
    bool toggled() const { return _toggled; }
    void draw();
};

class RoundButton {
    double _x = 0, _y = 0;
    double _w = 100, _h = 50;
    std::string _text;
    void (*_on_click)() = nullptr;
   private:
    RoundButton() = default;
    std::pair<double, double> position() const { return {_x, _y}; }
    void setPosition(double x, double y) { _x = x; _y = y; }
    std::pair<double, double> size() const { return {_w, _h}; }
    void setSize(double w, double h) { _w = w; _h = h; }
    const std::string& text() const { return _text; }
    void setText(const std::string& text) { _text = text; }
    void setOnClick(void (*fn)()) { _on_click = fn; }
    void click() {
        _on_click();
    }
    void draw(); // draws rounded edges
};