gann-cdf / graphics

public class Rectangle extends Drawable2D {

  /**

   * <p>Construct a new rectangle</p>

   *

   * <p><img src="doc-files/Rectangle.png" alt="Diagram of Rectangle parameters"></p>

   *

   * <p>All window coordinates are measured in pixels, with the X-axis increasing from left to right and the Y-axis

   * increasing from top to bottom. All window coordinates exist in the first quadrant.</p>

   *

   * <p><img src="../doc-files/window-coordinates.png" alt="Diagram of window coordinates"></p>

   *

   * @param x            coordinate of origin

   * @param y            coordinate of origin

   * @param width        in pixels

   * @param height       in pixels

   * @param drawingPanel on which to draw

   */

  public Rectangle(double x, double y, double width, double height, DrawingPanel drawingPanel) {

    try {

      setShape(new Rectangle2D.Double(x, y, width, height));

      setDrawingPanel(drawingPanel);

    } catch (DrawableException e) {

        System.err.println(e.getMessage());

    }

  }

  @Override

  public void setShape(Shape shape) throws DrawableException {

    if (shape instanceof Rectangle2D) {

      super.setShape(shape);

    } else {

      throw new DrawableException("Attempt to set Rectangles's underlying shape to a non-Rectangle2D instance");