package model;

import model.shapes.AShapeFactory;
import model.shapes.IShape;
import model.shapes.NullShape;

import java.awt.*;

/**
 * Shapes model.
 *
 * @author Mathias Ricken
 */
public class ShapesModel {
	/**
	 * Current shape.
	 */
	private IShape _shape;

	/**
	 * Constructor.
	 */
	public ShapesModel() {
		_shape = new NullShape();
	}

	/**
	 * Paint current shape.
	 * @param g graphics object
	 */
	public void paint(Graphics g) {
		_shape.paint(g);
	}

	/**
	 * Change the shape by using the factory.
	 * @param factory factory to create new shape
	 */
	public void changeShape(AShapeFactory factory) {
		_shape = factory.makeShape();
	}

	/**
	 * Return array of shape class names.
	 * @return array of class names
	 */
	public static String[] getShapeClassNames() {
		return new String[] {
		    "model.shapes.Ellipse",
		    "model.shapes.Rectangle",
		    "model.shapes.EllipticalArc",
		    "model.shapes.NullShape"
	    };
	}
}