/* * JWebcamPlayer.java * * Created on March 21, 2005, 1:31 AM *//** * * @author Alvaro Salmador (nx5) (naplam33 at msn.com) */import java.applet.*;import java.applet.AppletContext.*;import java.awt.*;import java.awt.event.*;import java.awt.image.*;import java.awt.Image;import java.net.URL;import javax.swing.*;//import javax.swing.table.*;import javax.imageio.*;//import java.util.*;import java.io.*;import java.net.*;public class JWebcamPlayer extends javax.swing.JApplet implements MouseListener, MouseMotionListener{    public static final boolean DEBUGGING = false;       public JWebcamPlayer()     {    }    public static String checkAppletLoaded()    {        return "ok";    }    public static int unsignedByteToInt( byte b )    {    	return (int) b & 0xff;    }    public void init()     {        m_strColor = getParameter("Color");        if (m_strColor==null || m_strColor=="") m_strColor = "#FFFFFF";        m_strServer = getCodeBase().getHost();//getParameter("Server");        if (m_strServer==null || m_strServer=="") m_strServer = "127.0.0.1";        m_strPort = getParameter("Port");        if (m_strPort==null || m_strPort=="") m_strPort = "7070";								overlay = toBufferedImage(getImage(getDocumentBase(), "control.jpg" ));				do_overlay = false;													addMouseListener(this);				addMouseMotionListener(this);    }       public void createGUI()    {        setBackground(Color.decode(m_strColor));                try {            //UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); //native            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName()); //java        } catch(Exception e) {  }         Container content = getContentPane();                content.setBackground(Color.decode(m_strColor));                GridBagLayout gbl = new GridBagLayout();        content.setLayout(gbl);        GridBagConstraints c = new GridBagConstraints();        c.fill = GridBagConstraints.BOTH;        c.weighty = 1.0;        c.weightx = 1.0;        c.gridwidth = 1;        c.anchor = GridBagConstraints.NORTHWEST;        c.insets = new Insets(0, 0,0,0);        c.gridheight = 1;        c.gridx = 0;        c.gridy = 0;        m_label = new JLabel();				m_label.setHorizontalAlignment(SwingConstants.LEFT);				m_label.setVerticalAlignment(SwingConstants.TOP);        m_label.setText("JWebcamPlayer Applet");            content.add(m_label, c);    }    public void start()    {        m_stop = false;                try {            javax.swing.SwingUtilities.invokeAndWait(new Runnable()             {                public void run() {                    createGUI();                }            } );        } catch (Exception e) {         }        m_worker = new SwingWorker() {            public Object construct() {                                Socket connection;                InputStream in;                OutputStream out;                try {                  int port = 0;                  try {                    port = Integer.parseInt(m_strPort);                  }                  catch(Exception e) {                    port = 0;                  }                  if (port==0) port = 7070;                  connection = new Socket(m_strServer, port);                  in = connection.getInputStream();                  out = connection.getOutputStream();                }                catch (IOException e) {                  System.out.println(                      "Attempt to create connection failed with error: " + e);                  m_label.setIcon(null);                  m_label.setText("JWebcamPlayer - Connection failed");                  m_stop = true;                  return null;                }                                byte [] buffer = new byte [512*1024];                                m_label.setText("");                        while(!m_stop)                {                    // bucle, constantemente lee imagen del server y la muestra                    byte [] b = {'O','K',0,0, 0,0,0,0,0,0,0,0,0};                    										if(bright_up) {											b[7] = 1;											bright_up = false;										}										if(bright_down) {											b[7] = 2;											bright_down = false;										}										if(contrast_up) {											b[8] = 1;											contrast_up = false;										}										if(contrast_down) {											b[8] = 2;											contrast_down = false;										}                                        int n = 0;                    int siz = 0;                    try {                        out.write(b);                        if (DEBUGGING)                            System.out.print("-sending my header ("+Integer.toString(b.length)+") bytes");                                                n = in.read(buffer, 0, HDRLEN);                        /*while(n<HDRLEN && n>0) {                            int r = in.read(buffer, n, HDRLEN-n);                            if (r<=0) break;                        }*/                                                if (DEBUGGING)                            System.out.print("-read header ("+Integer.toString(n)+") bytes");                    }                    catch(Exception e) {                        if (DEBUGGING)                            e.printStackTrace();                                                m_stop = true;                    }                                        if (n<HDRLEN)                     {                        if (n<=0)                             m_stop = true;                        continue;                    }                     else                     {                        // can someone point out a more straightforward way to convert 4 bytes                        // to a java integer? this is just awful...                        int ssz = SZOFS;												siz += unsignedByteToInt(buffer[ssz+3]) << 24;												siz += unsignedByteToInt(buffer[ssz+2]) << 16;												siz += unsignedByteToInt(buffer[ssz+1]) << 8;												siz += unsignedByteToInt(buffer[ssz]) ;                        if (DEBUGGING)                            System.out.println("** reading jpeg, size="+Integer.toString(siz));                        n = HDRLEN;                        if (buffer[0]!='S' || buffer[1]!='P' || buffer[2]!='C' || buffer[3]!='A')                        {                            if (DEBUGGING)                                System.out.println("*Header missing 'SPCA'");                                                        continue;                        }                        else if (siz<=0 || siz>(512*1024))                        {                            siz = 0;                            try {                                 in.read(buffer, n, buffer.length);                             }                               catch(Exception e) {                                if (DEBUGGING)                                    e.printStackTrace();                            }                                                        if (DEBUGGING)                                System.out.println("*Illegal image size");                                                        continue;                        }                        else                         {                            do                            {                                int r = 0;                                try {