Class PixelRectangle

src/csm/ch03/PixelRectangle.java:18–50

PixelRectangle demonstrates how to draw an object using the AWT drawing API. @author Wolfgang Christian, Jan Tobochnik, Harvey Gould @version 1.0 05/16/05

 * @version 1.0  05/16/05
 */
public class PixelRectangle implements Drawable {
  int left, top;     // position of rectangle in pixels
  int width, height; // size of rectangle in pixels

  /**
   * Constructs a PixelRectangle with position and dimensions values given in pixel coordinates.
   *
   * @param left int
   * @param top int
   * @param width int
   * @param height int
   */
  PixelRectangle(int left, int top, int width, int height) {
    this.left = left; // location of left edge
    this.top = top;   // location of top edge
    this.width = width;
    this.height = height;
  }

  /**
   * Draws this rectangle using the AWT drawing API.
   * Required to implement the Drawable interface.
   *
   * @param panel DrawingPanel
   * @param g Graphics
   */
  @Override
public void draw(DrawingPanel panel, Graphics g) {
    // this method implements the Drawable interface
    g.setColor(Color.RED);                // set drawing color to red
    g.fillRect(left, top, width, height); // draws rectangle
  }
}

/* 
 * Open Source Physics software is free software; you can redistribute