package horstmann.ch06_scene3;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;

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

	protected void add(Shape s)
	{
		path.append(s, false);
	}

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

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

	public void draw(Graphics2D g2)
	{
		g2.draw(path);
	}

	private GeneralPath path;
}