Window.h

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#pragma once
 
#include "Core.h"
#include "errors.h"
#include <array>
#include <SDL3/SDL_gpu.h>
 
namespace candlewick {

struct Window {

  explicit Window(const char *title, Sint32 w, Sint32 h, SDL_WindowFlags flags);

  explicit Window(SDL_Window *ptr) : _handle(ptr) {}
 
  Window(const Window &) = delete;
  Window(Window &&other) noexcept : _handle(other._handle) {
    other._handle = nullptr;
  }
 
  Window &operator=(Window &&other) noexcept {
    if (this != &other) {
      this->destroy();
      _handle = other._handle;
      other._handle = nullptr;
    }
    return *this;
  }
 
  operator SDL_Window *() const { return _handle; }
 
  std::array<int, 2> size() const;
 
  std::array<int, 2> sizeInPixels() const;
 
  float pixelDensity() const { return SDL_GetWindowPixelDensity(_handle); }
 
  float displayScale() const { return SDL_GetWindowDisplayScale(_handle); }
 
  SDL_PixelFormat pixelFormat() const {
    return SDL_GetWindowPixelFormat(_handle);
  }
 
  SDL_WindowFlags flags() const { return SDL_GetWindowFlags(_handle); }
 
  bool setTitle(const char *title) {
    return SDL_SetWindowTitle(_handle, title);
  }
 
  std::string_view title() const { return SDL_GetWindowTitle(_handle); }
 
  void destroy() noexcept {
    if (_handle)
      SDL_DestroyWindow(_handle);
    _handle = nullptr;
  }
 
  ~Window() noexcept { this->destroy(); }
 
private:
  SDL_Window *_handle;
};
 
inline Window::Window(const char *title, Sint32 w, Sint32 h,
                      SDL_WindowFlags flags) {
  _handle = SDL_CreateWindow(title, w, h, flags);
  if (!_handle) {
    throw RAIIException(SDL_GetError());
  }
}
 
inline std::array<int, 2> Window::size() const {
  int width, height;
  SDL_GetWindowSize(_handle, &width, &height);
  return {width, height};
}
 
inline std::array<int, 2> Window::sizeInPixels() const {
  int width, height;
  SDL_GetWindowSizeInPixels(_handle, &width, &height);
  return {width, height};
}
 
} // namespace candlewick