tablet-simulator/devicemanager.h

#pragma once

#include <QObject>
#include <QtQml>
#include <libevdev/libevdev-uinput.h>
#include <cstdlib>
#include <linux/input.h>
#include <fcntl.h>

class DeviceManager : public QObject {
    Q_OBJECT
    QML_ELEMENT

    Q_PROPERTY(QString name WRITE setName READ name NOTIFY nameChanged)
    Q_PROPERTY(bool direct WRITE setDirect READ direct NOTIFY directChanged)
    Q_PROPERTY(bool pad WRITE setPad READ pad NOTIFY padChanged)
    Q_PROPERTY(int penButtons WRITE setPenButtons READ penButtons NOTIFY penButtonsChanged)

public:
    ~DeviceManager() override;

    QString name() const;
    void setName(const QString &name);

    bool direct() const;
    void setDirect(bool direct);

    bool pad() const;
    void setPad(bool pad);

    int penButtons() const;
    void setPenButtons(int num);

public Q_SLOTS:
    void recreateDevice();
    void testButton();

Q_SIGNALS:
    void nameChanged();
    void directChanged();
    void padChanged();
    void penButtonsChanged();

private:
    void destroyDevice();

    struct libevdev *dev = nullptr;
    struct libevdev_uinput *uidev = nullptr;
    int fd = 0, uinput_fd = 0;
    unsigned int type = 0, code = 0;
    int rc = 0;
    const char *devnode = nullptr;

    QString m_name;
    bool m_direct = false;
    bool m_pad = false;
    int m_penButtons = 3;
};