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Spaceball.h

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/***************************************************************************
 *cr                                                                       
 *cr            (C) Copyright 1995-2019 The Board of Trustees of the           
 *cr                        University of Illinois                       
 *cr                         All Rights Reserved                        
 *cr                                                                   
 ***************************************************************************/

/***************************************************************************
 * RCS INFORMATION:
 *
 *      $RCSfile: Spaceball.h,v $
 *      $Author: johns $        $Locker:  $             $State: Exp $
 *      $Revision: 1.31 $       $Date: 2019/01/17 21:21:01 $
 *
 ***************************************************************************
 * DESCRIPTION:
 *
 * The Spaceball UI object, which maintains the current state of the 
 * spaceball.  This code uses John Stone's spaceball driver library.
 *
 ***************************************************************************/
#ifndef SPACEBALL_OBJ_H
#define SPACEBALL_OBJ_H

#include "UIObject.h"
#include "Command.h"
#include "NameList.h"

#if defined(VMDLIBSBALL) && !defined(VMDSPACEWARE)
#include "sball.h" // spaceball I/O library header
#endif

class Spaceball : public UIObject {
public:
  enum MoveMode { NORMAL, MAXAXIS, SCALING, ANIMATE, TRACKER, USER };

  static const char *get_mode_str(MoveMode mode);

private:
#if defined(VMDLIBSBALL) && !defined(VMDSPACEWARE)
  SBallHandle sball; 
#endif

  MoveMode moveMode; 
  float sensitivity; 
  int maxstride;     
  float transInc;    
  float rotInc;      
  float scaleInc;    
  float animInc;     
  int null_region;   
  int buttonDown;    

  float trtx;
  float trty;
  float trtz;
  float trrx;
  float trry;
  float trrz;
  int trbuttons;

public:
  Spaceball(VMDApp *);      
  virtual ~Spaceball(void); 
  
  //
  // virtual routines for UI init/display
  //
   
  virtual void reset(void);
  
  virtual int act_on_command(int, Command *); 
  
  virtual int check_event(void);

  int move_mode(MoveMode);

  void set_sensitivity(float s) {
    sensitivity = s;
  }

  void set_null_region(int nr) {
    null_region = nr;
  }

  void set_max_stride(int ms) {
    maxstride = ms;
  }

  void get_tracker_status(float &tx, float &ty, float &tz, 
                          float &rx, float &ry, float &rz, int &buttons);
};


class CmdSpaceballMode : public Command {
public:
  CmdSpaceballMode(int mm)
  : Command(SPACEBALL_MODE), spaceballMode(mm) {}

  int spaceballMode;
};

#endif

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