multitouchmanager.h

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/*
 *  The ManaPlus Client
 *  Copyright (C) 2013-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  This file is part of The ManaPlus Client.
 *
 *  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
 *  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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef INPUT_TOUCH_MULTITOUCHMANAGER_H
#define INPUT_TOUCH_MULTITOUCHMANAGER_H
 
#include <map>
 
#include "localconsts.h"
 
#ifdef USE_SDL2
union SDL_Event;
#endif  // USE_SDL2
 
struct MultiTouchEvent final
{
    A_DEFAULT_COPY(MultiTouchEvent)
 
    bool active;
    float x;
    float y;
};
 
typedef std::map<int, MultiTouchEvent> MultiTouchEventsMap;
typedef std::map<int, MultiTouchEventsMap> MultiTouchDevicesMap;
 
class MultiTouchManager final
{
    public:
        MultiTouchManager();
 
        ~MultiTouchManager();
 
        A_DELETE_COPY(MultiTouchManager)
 
        void init();
 
#ifdef USE_SDL2
        void updateFinger(const SDL_Event &event, const bool active);
 
        void handleFingerDown(const SDL_Event &event);
 
        void handleFingerUp(const SDL_Event &event);
 
        void checkDevice(const long touchId,
                         const long fingerId);
#endif  // USE_SDL2
 
    private:
        MultiTouchDevicesMap mEvents;
};
 
extern MultiTouchManager multiTouchManager;
 
#endif  // INPUT_TOUCH_MULTITOUCHMANAGER_H