qt-everywhere-src-5.15.1/qtgamepad/src/plugins/gamepads/sdl2/qsdlgamepadbackend_p.h

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#ifndef QSDLGAMEPADBACKEND_P_H
#define QSDLGAMEPADBACKEND_P_H

#include <QtCore/QTimer>
#include <QtCore/QMap>

#include <SDL_gamecontroller.h>

#include <QtGamepad/QGamepadManager>
#include <QtGamepad/private/qgamepadbackend_p.h>

QT_BEGIN_NAMESPACE

class QSdlGamepadBackend : public QGamepadBackend
{
    Q_OBJECT
public:
    explicit QSdlGamepadBackend(QObject *parent = nullptr);
    ~QSdlGamepadBackend();

private Q_SLOTS:
    void pumpSdlEventLoop();

protected:
    bool start() override;
    void stop() override;

private:
    QGamepadManager::GamepadButton translateButton(int button);
    void addController(int index);
    QTimer m_eventLoopTimer;
    QMap<int, SDL_GameController*> m_indexForController;
    QMap<int, int> m_instanceIdForIndex;
};

QT_END_NAMESPACE

#endif // QSDLGAMEPADBACKEND_P_H