import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * Base class for our buttons that have an arrow on them
 */
public abstract class ArrowButton extends Button {
    protected enum Direction {LEFTARROW, RIGHTARROW};

    public ArrowButton (Square square, Square.ButtonAction action, Direction direction) { //*1 Common to all our arrow buttons
	super (square, action); //*2 Pass required args to chained constructor

    	if (direction==Direction.LEFTARROW) { //*3 Strip this arg and use it here
	    setIcon (new ImageIcon ("leftArrow.gif")); //*4 Encapsulates icon details
	}
	else if (direction==Direction.RIGHTARROW) { //*3
	    setIcon (new ImageIcon ("rightArrow.gif")); //*4
        }
    }
}