vrpn_DreamCheeky.h

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#pragma once
 
#include <stddef.h>                     // for size_t
 
#include "vrpn_BaseClass.h"             // for vrpn_BaseClass
#include "vrpn_Button.h"                // for vrpn_Button_Filter
#include "vrpn_Configure.h"             // for VRPN_USE_HID
#include "vrpn_HumanInterface.h"        // for vrpn_HidAcceptor (ptr only), etc
#include "vrpn_Shared.h"                // for timeval
#include "vrpn_Types.h"                 // for vrpn_uint8
 
// Device drivers for the Dream Cheeky USB Roll-Up Drum Kit; done in such a
// way that any other USB devices from this vendow should be easy to add.
// Based on the X-Keys driver.
//
// For the Dreamcheeky:
// Button 0 is the upper-left triangle
// Button 1 is hte upper-right triangle
// Button 2 is the upper center round pad
// Button 3 is the lower-right round pad
// Button 4 is the lower-center round pad
// Button 5 is the lower-left round pad
 
#if defined(VRPN_USE_HID)
 
class VRPN_API vrpn_DreamCheeky: public vrpn_BaseClass, protected vrpn_HidInterface {
public:
  vrpn_DreamCheeky(vrpn_HidAcceptor *filter, const char *name, vrpn_Connection *c = 0,
      vrpn_uint16 vendor = 0, vrpn_uint16 product = 0);
  virtual ~vrpn_DreamCheeky();
 
  virtual void mainloop() = 0;
 
protected:
  // Set up message handlers, etc.
  void on_data_received(size_t bytes, vrpn_uint8 *buffer);
 
  virtual void decodePacket(size_t bytes, vrpn_uint8 *buffer) = 0;  
  struct timeval _timestamp;
  vrpn_HidAcceptor *_filter;
 
  // No actual types to register, derived classes will be buttons, analogs, and/or dials
  int register_types(void) { return 0; }
};
 
class VRPN_API vrpn_DreamCheeky_Drum_Kit: protected vrpn_DreamCheeky, public vrpn_Button_Filter {
public:
  // The sensors "bounce" a lot when the buttons are pressed and released,
  // causing spurious readings of press/release.  Debouncing looks at ensembles
  // of events to make sure that the buttons have settled before reporting
  // events.
  vrpn_DreamCheeky_Drum_Kit(const char *name, vrpn_Connection *c = 0, bool debounce = true);
  virtual ~vrpn_DreamCheeky_Drum_Kit() {};
 
  virtual void mainloop();
 
protected:
  // Do we try to debounce the buttons?
  bool d_debounce;
 
  // Send report iff changed
  void report_changes (void);
  // Send report whether or not changed
  void report (void);
 
  void decodePacket(size_t bytes, vrpn_uint8 *buffer);
};
 
#else
class vrpn_DreamCheeky_Drum_Kit;
#endif