/*
 * 86Box    A hypervisor and IBM PC system emulator that specializes in
 *          running old operating systems and software designed for IBM
 *          PC systems and compatibles from 1981 through fairly recent
 *          system designs based on the PCI bus.
 *
 *          This file is part of the 86Box distribution.
 *
 *          Header file for windows raw input native filter for QT
 *
 *
 *
 * Authors: Teemu Korhonen
 *
 *          Copyright 2021 Teemu Korhonen
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef QT_WINDOWSRAWINPUTFILTER_HPP
#define QT_WINDOWSRAWINPUTFILTER_HPP

#include <QObject>
#include <QMainWindow>
#include <QAbstractNativeEventFilter>
#include <QByteArray>

#include <windows.h>

#include <memory>

#include "qt_mainwindow.hpp"

#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
#    define result_t qintptr
#else
#    define result_t long
#endif

class WindowsRawInputFilter : public QObject, public QAbstractNativeEventFilter {
    Q_OBJECT

public:
    static std::unique_ptr<WindowsRawInputFilter> Register(MainWindow *window);

    bool nativeEventFilter(const QByteArray &eventType, void *message, result_t *result) override;

    ~WindowsRawInputFilter();

private:
    MainWindow *window;
    uint16_t     scancode_map[768];
    int          buttons    = 0;
    int          dx         = 0;
    int          dy         = 0;
    int          dwheel     = 0;
    int          menus_open = 0;

    WindowsRawInputFilter(MainWindow *window);

    void          handle_input(HRAWINPUT input);
    void          keyboard_handle(PRAWINPUT raw);
    void          mouse_handle(PRAWINPUT raw);
    static UINT16 convert_scan_code(UINT16 scan_code);
    void          keyboard_getkeymap();
};

#endif
