FAIRE DEFILER UNE IMAGE

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

public class defil extends Applet implements Runnable
{

private Image my_image;

private Thread my_thread;

private int my_position = 500;
private int position_start = 500;
private int position_limit = -500;
private MediaTracker mt;

private Image dbBuffer;
private Graphics dbGraphics;
private Color dbColor;


public static String imageName = "image.gif";

public static int moveIncrement = 2;


public void init()
{
	setBackground(Color.white);
	my_image = getImage(getDocumentBase(), imageName);
	mt = new MediaTracker(this);
	mt.addImage(my_image, 0);
	dbColor = Color.white;
}

public void start()
{
	try
	{
		mt.waitForID(0);
	}
        catch (InterruptedException e)
        { }

	System.out.println("Veuillez patienter...");
	Dimension d = getSize();
	position_start = d.width;
	my_position = position_start;
	position_limit = -(my_image.getWidth(this));
	dbBuffer = createImage(d.width, d.height);
	dbGraphics = dbBuffer.getGraphics();
	dbGraphics.setColor(dbColor);
	if (my_thread == null)
        {
		my_thread = new Thread(this);
		my_thread.start();
	}
}



public void stop()
{
	if (my_thread != null)
	{
		my_thread.interrupt();
		my_thread = null;
	}
}

public void run()
{
	Dimension d = getSize();
	while(true)
	{
		if (my_position > position_limit)
			my_position -= moveIncrement;
		else
			my_position = position_start;

		synchronized(dbBuffer)
	        {
			dbGraphics.fillRect(0, 0, d.width, d.height);
			dbGraphics.drawImage(my_image, my_position, 0, this);
		}

		repaint();

		try
		{
			if (my_thread.isInterrupted()) return;
				Thread.sleep(25);
		}
		catch(InterruptedException e)
		{
			return;
		}
	}
}


public void update (Graphics g)
{
	paint(g);
}

public void paint (Graphics g)
{
	synchronized (dbBuffer)
        {
		g.drawImage(dbBuffer, 0, 0, this);
	}
}

}