vrpn_CerealBox.h

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#ifndef VRPN_CEREALBOX_H
#define VRPN_CEREALBOX_H
 
#include "vrpn_Analog.h"                // for vrpn_Serial_Analog
#include "vrpn_Button.h"                // for vrpn_Button_Filter
#include "vrpn_Configure.h"             // for VRPN_API
#include "vrpn_Connection.h"            // for vrpn_CONNECTION_LOW_LATENCY, etc
#include "vrpn_Dial.h"                  // for vrpn_Dial
#include "vrpn_Shared.h"                // for timeval
#include "vrpn_Types.h"                 // for vrpn_uint32
 
class VRPN_API vrpn_CerealBox: public vrpn_Serial_Analog
            ,public vrpn_Button_Filter
            ,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
 
    unsigned _expected_chars;   // How many characters to expect in the report
    unsigned char _buffer[512]; // Buffer of characters in report
    unsigned _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