import java.awt.*;
import java.awt.geom.*;

/**
   A scene shape that is composed of multiple geometric shapes.
*/
public abstract class CompoundShape extends SelectableShape
{
   public CompoundShape()
   {
      path = new GeneralPath();
      area = new Area();
   }

   /**
    * Adds the shape to the compound shape (unfilled by default).
    * @param s a Shape
    */
   protected void add(Shape s)
   {
	   add(s, false);
   }
   
   /**
    * Adds the shape to the compound shape, with the caller
    * designating whether or not this shape should be filled.
    * @param s a shape
    * @param filled true to make this shape filled; false otherwise
    */
   protected void add(Shape s, boolean filled)
   {
      path.append(s, false);
      if (filled)
    	  area.add(new Area(s));
   }

   public boolean contains(Point2D aPoint)
   {
      return path.contains(aPoint);
   }

   public void translate(int dx, int dy)
   {
	  AffineTransform t = AffineTransform.getTranslateInstance(dx,dy);
	  path.transform(t);
	  area.transform(t);
   }

   public void draw(Graphics2D g2)
   {
	  g2.fill(area);
      g2.draw(path);
   }
   
   private GeneralPath path;
   private Area area;
}