Adding images to Jar File

This is main class which Displays the Button with Image:-

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JavaHelp extends JFrame{
 private ResourceClass resourceClass;
 public JavaHelp() {
   resourceClass = new ResourceClass();
   setTitle("Image from jar");
   setResizable(false);
   getContentPane().setLayout(new BorderLayout());
   Image img = resourceClass.loadIcon("Server.gif").getImage();
   ImageIcon icon = new ImageIcon(img);
   JButton button = new JButton(icon);
   add(button);
   addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e)
     {dispose();System.exit(0);}});
   pack();
   setVisible(true);
 }
 public static void main(String[] args) {
   JavaHelp app = new JavaHelp();
 }
}

This is utility class which give return the image object from jar file:-

import java.awt.*;
import javax.swing.*;
public class ResourceClass {
 public final static String FILESEPARATOR = System.getProperty("file.separator");
 public ImageIcon loadIcon(String iconName) {
   ImageIcon icon = null;
   String sep;
   try {
     try {
       icon = new ImageIcon(this.getClass().getResource("images" + FILESEPARATOR + iconName));
     }
     catch (Exception err) {
       if (FILESEPARATOR.equals("/"))
         sep = "\\";
       else sep = "/";
         icon = new ImageIcon(this.getClass().getResource("images" + sep + iconName));
     }
   }
   catch (Exception e) {
     System.out.println("Couldn't load button icons\n" + e);
   }
   return icon;
 }
}

To create the jar file following are the commands:-

D:\Java\Mine\JarWork>jar cvfm JavaHelp.jar MANIFEST.MF *.class images\
added manifest
adding: JavaHelp$1.class(in = 507) (out= 351)(deflated 30%)
adding: JavaHelp.class(in = 1242) (out= 739)(deflated 40%)
adding: ResourceClass.class(in = 1447) (out= 788)(deflated 45%)
adding: VarUtils.class(in = 1437) (out= 790)(deflated 45%)
adding: images/(in = 0) (out= 0)(stored 0%)
adding: images/Thumbs.db(in = 16384) (out= 5291)(deflated 67%)
adding: images/Server.gif(in = 395) (out= 296)(deflated 25%)

Here images\ is a directory in which we have the image files.
You will get jar file which runs without having images in current directory.

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Simple Player Applet using JMF

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.lang.String;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.IOException;
import java.util.Properties;
import javax.media.*;

public class SimplePlayerApplet extends Applet implements ControllerListener {
  Player player = null; // media Player
  Component visualComponent = null; // component in which video is playing
  Component controlComponent = null; // controls gain, position, start, stop
  Component progressBar = null; // displays progress during download
  boolean firstTime = true;
  long CachingSize = 0L;
  Panel panel = null;
  int controlPanelHeight = 0;
  int videoWidth = 0;
  int videoHeight = 0;

  public void init() {
    setLayout(null);
    panel = new Panel();
    panel.setLayout( null );
    add(panel);
    panel.setBounds(0, 0, 320, 240);
    String mediaFile = null; // input file name from html param
    MediaLocator mrl = null; // URL for our media file
    URL url = null;
    // Get the media filename info.The applet tag should contain the path to the
    // source media file, relative to the html page.
    if ((mediaFile = getParameter("FILE")) == null)
      Fatal("Invalid media file parameter");
    try {
      url = new URL(getDocumentBase(), mediaFile);
      mediaFile = url.toExternalForm();
    }
    catch (MalformedURLException mue) {}
    try {
      // Create a media locator from the file name
      if ((mrl = new MediaLocator(mediaFile)) == null)
        Fatal("Can't build URL for " + mediaFile);
      // Create an instance of a player for this media
      try {
        player = Manager.createPlayer(mrl);
      }
      catch (NoPlayerException e) {
        System.out.println(e);
        Fatal("Could not create player for " + mrl);
      }
      // Add ourselves as a listener for a player's events
      player.addControllerListener(this);
    }
    catch (MalformedURLException e) {
      Fatal("Invalid media file URL!");
    }
    catch (IOException e) {
      Fatal("IO exception creating player for " + mrl);
    }
    // This applet assumes that its start() calls player.start(). This causes the player to become
    // realized. Once realized, the applet will get the visual and control panel components and add
    // them to the Applet. These components are not added during init() because they are long
    // operations that would make us appear unresposive to the user.
  }
  public void start() {
    if (player != null)
      player.start();
  }
  public void stop() {
    if (player != null) {
      player.stop();
      player.deallocate();
    }
  }
  public void destroy() {
    player.close();
  }
  /**
  * This controllerUpdate function must be defined in order to implement a ControllerListener
  * interface. This function will be called whenever there is a media event
  */
  public synchronized void controllerUpdate(ControllerEvent event) {
    if (player == null)
      return;
    if (event instanceof RealizeCompleteEvent) {
      if (progressBar != null) {
        panel.remove(progressBar);
        progressBar = null;
      }
      int width = 320;
      int height = 0;
      if (controlComponent == null)
        if (( controlComponent = player.getControlPanelComponent()) != null) {
          controlPanelHeight = controlComponent.getPreferredSize().height;
          panel.add(controlComponent);
          height += controlPanelHeight;
        }
      if (visualComponent == null)
        if (( visualComponent =player.getVisualComponent())!= null) {
          panel.add(visualComponent);
          Dimension videoSize = visualComponent.getPreferredSize();
          videoWidth = videoSize.width;
          videoHeight = videoSize.height;
          width = videoWidth;
          height += videoHeight;
          visualComponent.setBounds(0, 0, videoWidth, videoHeight);
        }
      panel.setBounds(0, 0, width, height);
      if (controlComponent != null) {
        controlComponent.setBounds(0, videoHeight,width, controlPanelHeight);
        controlComponent.invalidate();
      }
    } else if (event instanceof CachingControlEvent) {
      if (player.getState() > Controller.Realizing)
        return;
      // Put a progress bar up when downloading starts,take it down when downloading ends.
      CachingControlEvent e = (CachingControlEvent) event;
      CachingControl cc = e.getCachingControl();
      // Add the bar if not already there ...
      if (progressBar == null) {
        if ((progressBar = cc.getControlComponent()) != null) {
          panel.add(progressBar);
          panel.setSize(progressBar.getPreferredSize());
          validate();
        }
      }
    } else if (event instanceof EndOfMediaEvent) {
      player.setMediaTime(new Time(0));
      player.start();
    } else if (event instanceof ControllerErrorEvent) {
      player = null;
      Fatal(((ControllerErrorEvent)event).getMessage());
    } else if (event instanceof ControllerClosedEvent) {
      panel.removeAll();
    }
  }
  void Fatal (String s) {
  System.err.println("FATAL ERROR: " + s);
  throw new Error(s);
  }
}

JMF Based Camera Capture

Hi Friends,
this blog i submit for easy interface of JMF Camera Interface & also do the snapshot facility.
the codes for that are as follows

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import javax.media.Buffer;
import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;
import javax.media.control.FrameGrabbingControl;
import javax.media.format.VideoFormat;
import javax.media.util.BufferToImage;
import javax.swing.JButton;
import javax.swing.JComponent;
//import com.sun.image.codec.jpeg.JPEGCodec;
//import com.sun.image.codec.jpeg.JPEGEncodeParam;
//import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class SwingCapture extends Panel implements ActionListener
{
public static Player player = null;
public CaptureDeviceInfo di = null;
public MediaLocator ml = null;
public JButton capture = null;
public Buffer buf = null;
public Image img = null;
public VideoFormat vf = null;
public BufferToImage btoi = null;
public ImagePanel imgpanel = null;
public SwingCapture()
{
setLayout(new BorderLayout());
setSize(320,550);
imgpanel = new ImagePanel();
capture = new JButton("Capture");
capture.addActionListener(this);
String str1 = "vfw:Logitech USB Video Camera:0";
String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
di = CaptureDeviceManager.getDevice(str2); //Getting Camera Device Information
ml = di.getLocator(); //MediaLocator for Camera
try
{
player = Manager.createRealizedPlayer(ml);//Creating Player
player.start(); //Start Camera Player
Component comp; //for Getting Visual Player Component of Camera
if ((comp = player.getVisualComponent()) != null)
{
add(comp,BorderLayout.NORTH); //Add Camera to North
}
add(capture,BorderLayout.CENTER); //Add Capture Button in Between
add(imgpanel,BorderLayout.SOUTH); //Add Captured image
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
Frame f = new Frame("SwingCapture"); //Creating New Frame
SwingCapture cf = new SwingCapture(); //Main Object Create
f.addWindowListener(new WindowAdapter() //Window Closing
{
public void windowClosing(WindowEvent e)
{
playerclose(); //Closing Player
System.exit(0);
}
});
f.add("Center",cf); //Adding Main Object to Frame
f.pack(); //Packing Frame
f.setSize(new Dimension(320,550));
f.setVisible(true);
}
public static void playerclose()//Function While Closing Player
{
player.close();
player.deallocate();
}
public void actionPerformed(ActionEvent e)
{
JComponent c = (JComponent) e.getSource();//Getting Source of Event
if (c == capture)//Capture Button Event
{
FrameGrabbingControl fgc = (FrameGrabbingControl)
player.getControl("javax.media.control.FrameGrabbingControl");
buf = fgc.grabFrame(); // Grabbing a frame
btoi = new BufferToImage((VideoFormat)buf.getFormat());// Convert it to an image Buffer
img = btoi.createImage(buf); //Creating Image from Buffer
imgpanel.setImage(img); // show the image
saveJPG(img,"c:\\test.jpg"); // save image Function
}
}
class ImagePanel extends Panel //Panel for Displaying Cptured Image
{
public Image myimg = null;
public ImagePanel()
{
setLayout(null);
setSize(320,240);
}
public void setImage(Image img)
{
this.myimg = img;
repaint();
}
public void paint(Graphics g)
{
if (myimg != null)
{
g.drawImage(myimg, 0, 0, this);
}
}
}
public static void saveJPG(Image img, String s)
{
BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = bi.createGraphics();
g2.drawImage(img, null, null);
FileOutputStream out = null;
try
{
out = new FileOutputStream(s);
}
catch (java.io.FileNotFoundException io)
{
System.out.println("File Not Found");
}
//JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
//JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
//param.setQuality(0.5f,false);
//encoder.setJPEGEncodeParam(param);
try
{
//encoder.encode(bi);
out.close();
}
catch (java.io.IOException io)
{
System.out.println("IOException");
}
}
}


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