package ShapeListService;

import java.util.Vector;

public class ShapeListImpl implements ShapeList{
    private Vector theList = new Vector();
    private int version = 0;
    private Vector theVersions = new Vector();
    
 
 	public ShapeListImpl(){
 		version = 0;
 		theVersions = new Vector();
 	}
 	
  	public int newShape(GraphicalObject g) {
  	    version++;
        theList.addElement(g);   
        theVersions.addElement(new Integer(version));             
        return theList.size();
     }

   	public  int numberOfShapes(){
        return theList.size();
    }

    public int getVersion() {
        return version;
    } 
    
    public int getGOVersion(int i){    	
    	return ((Integer) theVersions.elementAt(i)).intValue();
    }
    
    public GraphicalObject getAllState(int i) {
    	return (GraphicalObject)theList.elementAt(i);
    }

    

}