---

Animation.h

Go to the documentation of this file.

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

/***************************************************************************
 * RCS INFORMATION:
 *
 *      $RCSfile: Animation.h,v $
 *      $Author: johns $        $Locker:  $             $State: Exp $
 *      $Revision: 1.46 $       $Date: 2020/02/26 03:51:30 $
 *
 ***************************************************************************/
#ifndef ANIMATION_H
#define ANIMATION_H

#include "MoleculeList.h"
#include "UIObject.h"

#define SPEED_FACTOR    0.5f // max fraction of a sec between redraws

class Animation : public UIObject {
public:
  // enums for Animation options
  enum AnimDir  { ANIM_FORWARD, ANIM_FORWARD1, ANIM_REVERSE, ANIM_REVERSE1, 
                  ANIM_PAUSE, ANIM_TOTAL_DIRS };
  enum AnimStyle  { ANIM_ONCE, ANIM_LOOP, ANIM_ROCK, ANIM_TOTAL_STYLES };

private:
  MoleculeList &mlist;
 
  double lastTime;

  int frameSkip;       
  float Speed;         
  AnimDir animDir;     
  AnimStyle animStyle; 

public:
  Animation( VMDApp * );
  
  int num() { 
      Molecule *m = mlist.top();
      if (m) return m->numframes();
      return 0;
  }

  int frame() { 
      Molecule *m = mlist.top();
      if (m) return m->frame();
      return -1;
  }

  void goto_frame(int fr);

  virtual int check_event();

  void skip(int newsk);                            
  int skip() const { return frameSkip; }           
  void anim_dir(AnimDir ad) { animDir = ad; }      
  AnimDir anim_dir() const { return animDir; }     
  void anim_style(AnimStyle as);                   
  AnimStyle anim_style() const { return animStyle; } 


  float speed(float newsp);
  float speed() const { return (float) (Speed / SPEED_FACTOR); }
};

extern const char *animationStyleName[Animation::ANIM_TOTAL_STYLES];

extern const char *animationDirName[Animation::ANIM_TOTAL_DIRS];

#endif

---