#ifndef __ABOND_HH__
#define __ABOND_HH__

#include "AAtom.hh"

class ABond
{
public:
  //--- Constructors ---
  virtual ABond *newBond(AAtom *src,AAtom *dst,
			 AAtom *_srcCA = NULL,
			 AAtom *_dstCA = NULL) = 0;

  //--- Destructors ---
  virtual ~ABond() { ; }

  //--- Connected atoms ---
  virtual AAtom *getSrcAtom() = 0;
  virtual AAtom *getDstAtom() = 0;

  //--- Access to the next bond ---
  virtual ABond *getNext()           = 0;
  virtual bool  setNext(ABond *bond) = 0;

  //--- Manipulations with atoms ---
  virtual bool hasAtom(AAtom *atom) = 0;

  //--- Visibility ---
  virtual bool isVisible()     = 0;
  virtual void setVisible()    = 0;
  virtual void setNotVisible() = 0;

  //--- Flag status ---
  virtual bool isWired()        = 0;
  virtual void setWired()       = 0;
  virtual bool isDashed()       = 0;
  virtual void setDashed()      = 0;
  virtual bool isCylindered()   = 0;
  virtual void setCylindered()  = 0;
  virtual bool isDrawn()        = 0;
  virtual void setNotDraw()     = 0;

  //--- Access to the energy of the bond ---
  virtual double getEnergy()              = 0;
  virtual double setEnergy(double energy) = 0;

  //--- Extracting colors ---
  virtual void  setColor(short col_) = 0;
  virtual short getColor()           = 0;

  //--- Bond stability ---
  virtual double getStability()            = 0;
  virtual void   setStability(double stab) = 0;
};

#endif