Application: gvSIG desktop

import java.awt.AlphaComposite;

import java.awt.Composite;

import java.awt.Graphics2D;

import java.awt.GraphicsConfiguration;

import java.awt.Image;

import java.awt.Transparency;

import java.awt.image.BufferedImage;

public class MultiSplashWindow extends JWindow implements TimerCallBack{

     private Timer timer;

     private int numLogos =0;

     private Image offscreenImage;

     private ImageIcon[] img =null;

     private static JProgressBar pb;

     private static JLabel lblStatus;

     private Dimension splashDimension;

     float f=0.9f;

     int i=0;

     public MultiSplashWindow(Frame f) {

         super(f);

         if (splashDimension==null){

			 splashDimension=new Dimension(400,400);

		 }

         lblStatus = new JLabel(Messages.getString("SplashWindow.Iniciando"));

         lblStatus.setBorder(BorderFactory.createEtchedBorder());

         lblStatus.setBackground(Color.WHITE);

         pack();

         pb = new JProgressBar();

         getContentPane().setLayout(new BorderLayout());

         getContentPane().add(lblStatus, BorderLayout.NORTH);

         getContentPane().add(pb, BorderLayout.SOUTH);

         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

         setLocation((screenSize.width / 2) - (splashDimension.width / 2),

             (screenSize.height / 2) - (splashDimension.height / 2));

         setVisible(true);

         setSize(splashDimension.width, splashDimension.height+20);

 	     init();

 	    show(true);

     }

     public void init(){

    	 offscreenImage = createCompatibleImage(splashDimension.width, splashDimension.height+20,Transparency.TRANSLUCENT);

    	 File dirLogos=new File("./logos");

    	 File[] fileLogos=dirLogos.listFiles(new FileFilter() {

    	 numLogos=fileLogos.length+1;

    	 img=new ImageIcon[numLogos];

    	 img[0]=new ImageIcon(this.getClass().getClassLoader().getResource("images/logo_es.png"));

    	 for (int i=0;i<numLogos-1;i++){

    		 try {

			} catch (MalformedURLException e) {

			}

    	 }

    	 start();

     }

     private BufferedImage createCompatibleImage(int w, int h, int transparancy){

             GraphicsConfiguration gc = getGraphicsConfiguration();

             return gc.createCompatibleImage(w, h, transparancy);

     }

     public void update(Graphics g){

    	 if (offscreenImage == null) {

    		 // no images were loaded yet (for computers with slow disks)

    		 super.update(g);

    	 } else {

             Graphics offscreenG = offscreenImage.getGraphics();

             offscreenG.setColor(getBackground());

             offscreenG.fillRect(0, 0, splashDimension.width, splashDimension.height+20);

             paint(offscreenG);

             g.drawImage(offscreenImage, 0, 0, this);

    	 }

     }

     public void paint(Graphics g){

         super.paint(g);

       	 if (img==null || img[i]==null)

        	   return;

         Composite alpha = AlphaComposite.getInstance(AlphaComposite.SRC_OVER,f);

         ((Graphics2D)g).setComposite(alpha);

         g.drawImage(img[i].getImage(),0,20,null);

         i++;

         if (i>=numLogos)

        	 i=0;

     }

     public void tick(){

        repaint();

     }

     public void start(){

          timer = new Timer(this, 1000);

          timer.start();

     }

     /**

      * cierra la ventana

      */

     public void close() {

         setVisible(false);

         stop();

         dispose();

     }

     public void stop(){

          timer.stop();

          timer = null;

     }

     public static void main(String[] args) {

    	Frame frame=new Frame();

		MultiSplashWindow ba=new MultiSplashWindow(frame);

		ba.setSize(500,500);

     /**

      * @see com.iver.mdiApp.ui.AppLoadingListener#process(int)

      */

     public static void process(int p, String str) {

         lblStatus.setText(str);

         // System.out.println("Porcentaje :" + p);

         if (pb.getValue() != p)

         {

         	pb.setValue(p);

         	pb.repaint();

         	// pb.paint(pb.getGraphics());

         }

     }

}