window.h

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#pragma once
 
#include <optional>
 
class SDL_Window;  // forward declaration to keep SDL include out of headers
 
class Window {
 private:
  unsigned min_width_;
  unsigned min_height_;
 
  // I tried using an std::optional<std::reference_wrapper<SDL_Window>> here.
  // But optional requires a type know at compile time due to how the optional
  // template is implemented. SDL_Window * const can not be done here because
  // init still has to be able to change its value.
  SDL_Window* window_;
 
  friend class Renderer;
  Window& init(SDL_Window* window);
 
 public:
  explicit Window(unsigned min_width, unsigned min_height);
 
  Window& set_window_fullscreen();
  Window& set_window_windowed();
  Window& set_window_bordered();
  Window& set_window_borderless();
  Window& set_window_unresizable();
  Window& set_window_resizable();
  Window& set_window_width(unsigned width);
  Window& set_window_height(unsigned height);
 
  int get_window_width() const;
 
  int get_window_height() const;
};