import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.logging.*;

import javax.swing.*;



/**

 * A modification of the image viewer program that logs various events.

 * @version 1.02 2007-05-31

 * @author Cay Horstmann

 */

public class LoggingImageViewer

{

   public static void main(String[] args)

   {

      if (System.getProperty("java.util.logging.config.class") == null

            && System.getProperty("java.util.logging.config.file") == null)

      {

         try

         {

            Logger.getLogger("com.horstmann.corejava").setLevel(Level.ALL);

            final int LOG_ROTATION_COUNT = 10;

            Handler handler = new FileHandler("%h/LoggingImageViewer.log", 0, LOG_ROTATION_COUNT);

            Logger.getLogger("com.horstmann.corejava").addHandler(handler);

         }

         catch (IOException e)

         {

            Logger.getLogger("com.horstmann.corejava").log(Level.SEVERE,

                  "Can't create log file handler", e);

         }

      }



      EventQueue.invokeLater(new Runnable()

         {

            public void run()

            {

               Handler windowHandler = new WindowHandler();

               windowHandler.setLevel(Level.ALL);

               Logger.getLogger("com.horstmann.corejava").addHandler(windowHandler);



               JFrame frame = new ImageViewerFrame();

               frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



               Logger.getLogger("com.horstmann.corejava").fine("Showing frame");

               frame.setVisible(true);

            }

         });

   }

}



/**

 * The frame that shows the image.