package gjt.test;

import java.awt.*;
import java.applet.Applet;
import java.net.URL;

import gjt.ImageScroller;
import gjt.Util;

/**
 * Four images are loaded; subsequent mouse clicks cycle 
 * through the images, that are displayed in an ImageScroller.
 *
 * @version 1.0, April 25, 1996
 * @author  David Geary
 * @see     gjt.test.UnitTest
 * @see     gjt.Scroller
 * @see     gjt.ImageScroller
 */
public class ImageScrollerTest extends UnitTest {
    public String title() { 
        return "ImageScroller Test"; 
    }
    public Panel centerPanel() { 
        return new ImageScrollerTestPanel(this); 
    }
}

class ImageScrollerTestPanel extends Panel {
    private Image[]       images     = new Image[4];         
    private int           imageIndex = 0;
    private ImageScroller scroller;

    public ImageScrollerTestPanel(Applet applet) {
        URL cb = applet.getCodeBase();

        images[0]=applet.getImage(cb,"gifs/ashleyAndRoy.gif"); 
        images[1]=applet.getImage(cb,"gifs/ashleyAndSabre.gif");
        images[2]=applet.getImage(cb,"gifs/anjinAndMariko.gif");
        images[3]=applet.getImage(cb,"gifs/ashleyAndAnjin.gif");

        setLayout(new BorderLayout());
        add("Center", scroller = new ImageScroller(images[0]));
    }
    public boolean mouseUp(Event event, int x, int y) {
        if(imageIndex == images.length-1) imageIndex = 0;
        else                              imageIndex++;

        Util.setCursor(Frame.WAIT_CURSOR, this);
        scroller.resetImage(images[imageIndex]);
        Util.setCursor(Frame.DEFAULT_CURSOR, this);

        return true;
    }
}