package bluej.stride.framedjava.slots;

import java.util.function.Function;


class PosAndDist
{       
private final CaretPos pos;
   
   private final double dist;
    
   
   public PosAndDist()
{
pos = null; dist = -1; 
      }
    
   
   public PosAndDist(CaretPos pos, double dist)
   {        
      this.pos = pos;
       
      this.dist = dist;     
      }

   
   public static PosAndDist nearest(PosAndDist a, PosAndDist b)
   {
      if (a.pos == null || a.dist == -1) return b; 
      if (b.pos == null || b.dist == -1) return a;
        
      if (a.dist <= b.dist)
           
      return a;
       
      else{ return b;
         }     
      }
    
   
   public PosAndDist copyAdjustPos(Function<CaretPos, CaretPos> f)
   {        
      return new PosAndDist(f.apply(pos), dist);     
      }
    
   
   public CaretPos getPos()
   {        
      return pos;     
      } 
   }