/** A Slider that takes an Everest applet as an argument,
 *  calling back to its setCostField when the slider value
 *  changes.
 *
 *  Taken from Core Web Programming from 
 *  Prentice Hall and Sun Microsystems Press,
 *  http://www.corewebprogramming.com/.
 *  © 2001 Marty Hall and Larry Brown;
 *  may be freely used or adapted. 
 */

public class CostSlider extends Slider {
  private Everest app;

  public CostSlider(int minValue, int maxValue,
                    int initialValue, Everest app) {
    super(minValue, maxValue, initialValue);
    this.app = app;
  }

  public void doAction(int value) {
    app.setCostField(value);
  }
}