/*
 * File: TimesSquare.java
 * ----------------------
 * This program displays the text of the string HEADLINE on the
 * screen in an animated way that moves it across the display
 * from left to right.
 */

import acm.graphics.*;
import acm.program.*;

public class TimesSquare extends GraphicsProgram {

/** Runs the program */
	public void run() {
		GLabel label = new GLabel(HEADLINE);
		label.setFont("Serif-72");
		add(label, getWidth(), (getHeight() + label.getAscent()) / 2);
		while (label.getX() + label.getWidth() > 0) {
			label.move(-DELTA_X, 0);
			pause(PAUSE_TIME);
		}
	}

/* The number of pixels to shift the label on each cycle */
	private static final int DELTA_X = 2;

/* The number of milliseconds to pause on each cycle */
	private static final int PAUSE_TIME = 20;

/* The string to use as the value of the label */
	private static final String HEADLINE =
	  "When in the course of human events it becomes necessary " +
	  "for one people to dissolve the political bands which " +
	  "connected them with another . . .";

/* Make the graphics window long and narrow */
	public static final int APPLICATION_WIDTH = 700;
	public static final int APPLICATION_HEIGHT = 100;

/* Standard Java entry point */
/* This method can be eliminated in most Java environments */
	public static void main(String[] args) {
		new TimesSquare().start(args);
	}
}