viewer_window.hpp

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#pragma once

 
#include <cstddef>
#include <memory>
#include <string>
 
#include "orrery/viz/camera.hpp"
#include "orrery/viz/gl_api.hpp"
 
namespace orrery::viz {

struct WindowOptions {
    std::size_t width = 1280;
    std::size_t height = 720;
    std::string title = "Orrery";

    bool visible = true;

    bool vertical_sync = true;
};

enum class Key : std::uint8_t {
    kQuit,
    kPause,
    kBrighter,
    kDarker,
    kReset,
    kCapture,
};

class ViewerWindow {
public:
    explicit ViewerWindow(const WindowOptions& options);
 
    ~ViewerWindow();
 
    ViewerWindow(const ViewerWindow&) = delete;
    ViewerWindow& operator=(const ViewerWindow&) = delete;
    ViewerWindow(ViewerWindow&&) = delete;
    ViewerWindow& operator=(ViewerWindow&&) = delete;

    [[nodiscard]] static GlProcedureLoader loader() noexcept;

    [[nodiscard]] std::size_t width() const noexcept;
    [[nodiscard]] std::size_t height() const noexcept;
 
    [[nodiscard]] bool should_close() const noexcept;

    void request_close() noexcept;

    void poll();

    [[nodiscard]] bool pressed(Key key) const noexcept;

    [[nodiscard]] bool held(Key key) const noexcept;
 
    void present();
 
    [[nodiscard]] OrbitCamera& camera() noexcept;
    [[nodiscard]] const OrbitCamera& camera() const noexcept;
 
private:
    struct State;
    std::unique_ptr<State> state_;
};
 
} // namespace orrery::viz