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vrpn_CerealBox.h

This is the verbatim text of the vrpn_CerealBox.h include file.

#ifndef VRPN_CEREALBOX_H
#define VRPN_CEREALBOX_H

#include "vrpn_Connection.h"
#include "vrpn_Analog.h"
#include "vrpn_Button.h"
#include "vrpn_Dial.h"

class vrpn_CerealBox: public vrpn_Serial_Analog
                        ,public vrpn_Button
                        ,public vrpn_Dial
{
public:
        vrpn_CerealBox (const char * name, vrpn_Connection * c,
                        const char * port, int baud,
                        const int numbuttons, const int numchannels, const int numencoders);

        ~vrpn_CerealBox () {};

        // Called once through each main loop iteration to handle
        // updates.
        virtual void mainloop ();

  protected:
        int _status;
        int _numbuttons;        // How many buttons to open
        int _numchannels;       // How many analog channels to open
        int _numencoders;       // How many encoders to open

        int _expected_chars;    // How many characters to expect in the report
        unsigned char _buffer[512];     // Buffer of characters in report
        int _bufcount;          // How many characters we have so far

        struct timeval timestamp;       // Time of the last report from the device

        virtual void clear_values(void);        // Set all buttons, analogs and encoders back to 0
        virtual int reset(void);                // Set device back to starting config
        virtual int get_report(void);           // Try to read a report from the device

        // send report iff changed
        virtual void report_changes
                   (vrpn_uint32 class_of_service
                    = vrpn_CONNECTION_LOW_LATENCY);
        // send report whether or not changed
        virtual void report
                   (vrpn_uint32 class_of_service
                    = vrpn_CONNECTION_LOW_LATENCY);

          // NOTE:  class_of_service is only applied to vrpn_Analog
          //  values, not vrpn_Button or vrpn_Dial
};

#endif

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