JoystickManager.hh

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#ifndef JOYSTICK_MANAGER_HH
#define JOYSTICK_MANAGER_HH
 
#include "JoystickId.hh"
 
#include <memory>
#include <optional>
#include <vector>
 
#include <SDL.h>
 
namespace openmsx {
 
class CommandController;
class IntegerSetting;
 
class JoystickManager {
        JoystickManager(const JoystickManager&) = delete;
        JoystickManager(JoystickManager&&) = delete;
        JoystickManager& operator=(const JoystickManager&) = delete;
        JoystickManager& operator=(JoystickManager&&) = delete;
 
public:
        explicit JoystickManager(CommandController& commandController_);
        ~JoystickManager();
 
        // Handle SDL joystick added/removed events
        void add(int deviceIndex);
        void remove(int instanceId);
 
        // return the range of JoystickId's for which there is a corresponding SDL_Joystick
        [[nodiscard]] std::vector<JoystickId> getConnectedJoysticks() const;
 
        [[nodiscard]] IntegerSetting* getJoyDeadZoneSetting(JoystickId joyId) const;
        [[nodiscard]] std::string getDisplayName(JoystickId joyId) const;
        [[nodiscard]] std::optional<unsigned> getNumButtons(JoystickId joyId) const;
 
        [[nodiscard]] std::optional<JoystickId> translateSdlInstanceId(SDL_Event& evt) const;
 
private:
        [[nodiscard]] size_t getFreeSlot();
 
private:
        CommandController& commandController;
 
        struct Info {
                SDL_Joystick* joystick = nullptr;
                int instanceId = -1;
                std::unique_ptr<IntegerSetting> deadZoneSetting;
        };
        std::vector<Info> infos;
};
 
} // namespace openmsx
 
#endif