GLFW.h

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#ifndef VolViz_GLFW_h
#define VolViz_GLFW_h

// clang-format off
#ifndef XCODE_BUILD
#  include "config.h"
#endif
// clang-format on

#include "GLdefs.h"

#include <GLFW/glfw3.h>

#include <functional>
#include <string>
#include <vector>

namespace VolViz {
namespace Private_ {
namespace GL {

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
class GLFW {
public:
  inline GLFW()
      : GLFW("Volume Visualizer", VOLVIZ_DEFAULT_WINDOW_WIDTH,
             VOLVIZ_DEFAULT_WINDOW_HEIGHT) {}

  GLFW(std::string title, std::size_t width, std::size_t height);
  GLFW(GLFW const &) = delete;
  GLFW(GLFW &&rhs);

  ~GLFW();

  void hide() noexcept;
  void show() noexcept;

  bool isHidden() const noexcept;

  void makeCurrent() noexcept;

  void detachContext() noexcept;

  inline operator bool() const noexcept {
    return !glfwWindowShouldClose(window);
  }

  inline void swapBuffers() const noexcept { glfwSwapBuffers(window); }

  inline void waitEvents() const noexcept { glfwWaitEvents(); }

  inline void pollEvents() const noexcept { glfwPollEvents(); }

  bool supportsExtension(std::string name) const noexcept;

  inline decltype(auto) supportedExtensions() const noexcept {
    return supportedExtensions_;
  }

  std::size_t width() const noexcept;
  std::size_t height() const noexcept;

  std::function<void(int, int, int, int)> keyInputHandler;
  std::function<void(std::size_t, std::size_t)> windowResizeCallback;
  std::function<void(double, double)> scrollWheelInputHandler;
  std::function<void(int, int, int)> mouseButtonCallback;
  std::function<void(double, double)> mouseMoveCallback;

private:
  GLFWwindow *window = nullptr;
  std::vector<std::string> supportedExtensions_;
};
#pragma clang diagnostic pop

} // namespace GL
} // namespace Private_
} // namespace VolViz

#endif // VolViz_GLFW_h