persistent_state.h

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#pragma once
 
// system includes
#include <memory>
 
// local includes
#include "display_device/settings_persistence_interface.h"
#include "display_device/windows/win_display_device_interface.h"
 
namespace display_device {
  class PersistentState {
  public:
    explicit PersistentState(std::shared_ptr<SettingsPersistenceInterface> settings_persistence_api, bool throw_on_load_error = false);
 
    [[nodiscard]] bool persistState(const std::optional<SingleDisplayConfigState> &state);
 
    [[nodiscard]] const std::optional<SingleDisplayConfigState> &getState() const;
 
  protected:
    std::shared_ptr<SettingsPersistenceInterface> m_settings_persistence_api;
 
  private:
    std::optional<SingleDisplayConfigState> m_cached_state;
  };
}  // namespace display_device