mmsinputlishandler.h

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/***************************************************************************
 *   Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider,             *
 *                           Matthias Hardt, Guido Madaus                  *
 *                                                                         *
 *   Copyright (C) 2007-2008 BerLinux Solutions GbR                        *
 *                           Stefan Schwarzer & Guido Madaus               *
 *                                                                         *
 *   Copyright (C) 2009-2013 BerLinux Solutions GmbH                       *
 *                                                                         *
 *   Authors:                                                              *
 *      Stefan Schwarzer   <stefan.schwarzer@diskohq.org>,                 *
 *      Matthias Hardt     <matthias.hardt@diskohq.org>,                   *
 *      Jens Schneider     <jens.schneider@diskohq.org>,                   *
 *      Guido Madaus       <guido.madaus@diskohq.org>,                     *
 *      Patrick Helterhoff <patrick.helterhoff@diskohq.org>,               *
 *      René Bählkow       <rene.baehlkow@diskohq.org>                     *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License version 2.1 as published by the Free Software Foundation.     *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 **************************************************************************/

#ifndef MMSINPUTLISHANDLER_H_
#define MMSINPUTLISHANDLER_H_

#include "mmsgui/mmsguitools.h"
#include "mmsinput/mmsinputhandler.h"

//! maximum number of linux input devices
#define MMSINPUTLISHANDLER_MAX_DEVICES  16

#define MMSINPUTLISHANDLER_EVENT_BUFFER_SIZE    100

typedef int MMSINPUTLISHANDLER_DEVTYPE;

#define MMSINPUTLISHANDLER_DEVTYPE_UNKNOWN      "UNKNOWN"
#define MMSINPUTLISHANDLER_DEVTYPE_KEYBOARD     "KEYBOARD"
#define MMSINPUTLISHANDLER_DEVTYPE_REMOTE       "REMOTE"
#define MMSINPUTLISHANDLER_DEVTYPE_TOUCHSCREEN  "TOUCHSCREEN"

typedef struct {
    float           xFactor;        /**< multiplicate the x value to get the real value (touchscreen only) */
    float           yFactor;        /**< multiplicate the y value to get the real value (touchscreen only) */
    bool            swapX;          /**< swap x axis */
    bool            swapY;          /**< swap y axis */
    bool            swapXY;         /**< swap x and y axis */
    MMSFBRectangle  rect;           /**< specifies resolution of touch controller */
    bool            haveBtnEvents;  /**< touch driver sends BTN_xxx events */
} MMSINPUTLISHANDLER_DEV_TOUCH;

typedef struct {
    string  name;
    string  desc;
    string  type;

    MMSINPUTLISHANDLER_DEV_TOUCH touch;
} MMSINPUTLISHANDLER_DEV;


class MMSInputLISHandler : public MMSInputHandler {
    private:
        //! available input devices
        MMSINPUTLISHANDLER_DEV devices[MMSINPUTLISHANDLER_MAX_DEVICES];

        //! number of available input devices
        int devcnt;


        //! event ring buffer
        MMSInputEvent   ie_buffer[MMSINPUTLISHANDLER_EVENT_BUFFER_SIZE];

        //! current number of events in ring buffer
        unsigned char   ie_count;

        //! event ring buffer, read pos
        unsigned char   ie_read_pos;

        //! event ring buffer, write pos
        unsigned char   ie_write_pos;

        class MMSInputLISThread *listhread;

        //! lock
        MMSMutex lock;

        bool checkDevice();
        void getDevices();

        bool addEvent(MMSInputEvent *inputevent);

    public:
        MMSInputLISHandler(MMS_INPUT_DEVICE device);
        ~MMSInputLISHandler();
        void grabEvents(MMSInputEvent *inputevent);

    // friends
    friend class MMSInputLISThread;
};

#endif /* MMSINPUTLISHANDLER_H_ */

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