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   1  /*  Copyright (C) 2005 Simon David Rycroft
   2   
   3          This program is free software; you can redistribute it and/or
   4          modify it under the terms of the GNU General Public License
   5          as published by the Free Software Foundation; either version 2
   6          of the License, or (at your option) any later version.
   7   
   8          This program is distributed in the hope that it will be useful,
   9          but WITHOUT ANY WARRANTY; without even the implied warranty of
  10          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11          GNU General Public License for more details.
  12   
  13          You should have received a copy of the GNU General Public License
  14          along with this program; if not, write to the Free Software
  15          Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA. */
  16  
  17  import java.awt.BorderLayout;
  18  import java.awt.Color;
  19  import java.awt.Container;
  20  
  21  import java.awt.dnd.DropTargetListener;
  22  import java.awt.dnd.DropTargetDropEvent;
  23  import java.awt.dnd.DropTargetDragEvent;
  24  import java.awt.dnd.DropTargetEvent;
  25  import java.awt.dnd.DropTarget;
  26  import java.awt.dnd.DnDConstants;
  27  import java.awt.datatransfer.*;
  28  
  29  import java.awt.event.MouseEvent;
  30  import java.awt.event.MouseListener;
  31  import java.awt.GridLayout;
  32  import java.io.File;
  33  import java.io.PrintStream;
  34  import java.io.BufferedReader;
  35  import java.net.URL;
  36  import java.net.URI;
  37  import java.util.Arrays;
  38  import java.util.Iterator;
  39  import java.util.List;
  40  import java.util.Vector;
  41  import javax.swing.BorderFactory;
  42  import javax.swing.JApplet;
  43  import javax.swing.JButton;
  44  import javax.swing.JFileChooser;
  45  import javax.swing.JLabel;
  46  import javax.swing.JOptionPane;
  47  import javax.swing.JPanel;
  48  import javax.swing.JProgressBar;
  49  import javax.swing.JScrollPane;
  50  import javax.swing.JTable;
  51  import javax.swing.table.TableColumn;
  52  import javax.swing.UIManager;
  53  import javax.swing.SwingConstants;
  54  import netscape.javascript.JSObject;
  55  
  56  import java.net.UnknownHostException;
  57  import java.net.MalformedURLException;
  58  import javax.swing.UnsupportedLookAndFeelException;
  59  
  60  public class Main extends JApplet implements MouseListener, DropTargetListener {
  61      
  62      JTable table;
  63      JButton add, remove, upload, help;
  64      TableData tabledata;
  65      TableColumn sizeColumn;
  66      File [] files;
  67      JLabel progCompletion;
  68      JProgressBar progBar;
  69      int sentBytes,totalBytes,buttonClicked;
  70      Color backgroundColour, columnHeadColourBack, columnHeadColourFore;
  71      PostletLabels pLabels;
  72      
  73      // Boolean set to false when a javascript method is executed
  74      boolean javascript;
  75      
  76      // Parameters
  77      URL endPageURL, helpPageURL, destinationURL;
  78      boolean warnMessage, autoUpload;
  79      String language,endpage,helppage;
  80      int maxThreads;
  81      String [] fileExtensions;
  82      
  83      // URI list flavor (Hack for linux)
  84      DataFlavor uriListFlavor;
  85      
  86      public void init() {
  87          // First thing, output the version, for debugging purposes.
  88          System.out.println("POSTLET VERSION: 0.10");
  89          String date = "$Date: 2006-09-14 12:24:14 +0100 (Thu, 14 Sep 2006) $";
  90          System.out.println(date.substring(7,date.length()-1));
  91          
  92      // URI list flavor:
  93      try {
  94          uriListFlavor = new DataFlavor("text/uri-list;class=java.lang.String");
  95      }
  96      catch (ClassNotFoundException cnfe){
  97          errorMessage(System.out, "No class found for DataFlavor");
  98      }
  99      
 100          // Set the javascript to false, and start listening for clicks
 101          javascript = false;
 102          JavascriptListener jsListen = new JavascriptListener(this);
 103          jsListen.start();
 104          buttonClicked = 0; // Default of add click.
 105          
 106          getParameters();
 107          pLabels = new PostletLabels(language, getCodeBase());
 108          layoutGui();
 109          
 110      }
 111      
 112      private void layoutGui(){
 113          
 114          // Set the look of the applet
 115          try {
 116              UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
 117          } catch (UnsupportedLookAndFeelException exc){;} catch (IllegalAccessException exc){;} catch (ClassNotFoundException exc){;} catch (InstantiationException exc){;}
 118          
 119          // Get the main pane to add content to.
 120          Container pane = getContentPane();
 121          
 122          // Attempt to add drop listener to the whole applet
 123          try {
 124              DropTarget dt = new DropTarget();
 125              dt.addDropTargetListener(this);
 126              pane.setDropTarget(dt);
 127          } catch (java.util.TooManyListenersException tmle){
 128              errorMessage(System.out, "Too many listeners to drop!");
 129          }
 130          
 131          // Table for the adding of Filenames and sizes to.
 132          tabledata = new TableData(pLabels.getLabel(0),pLabels.getLabel(1)+" -KB ");
 133          table = new JTable(tabledata);
 134          table.setColumnSelectionAllowed(false);
 135          //table.setDragEnabled(false); // This method is not available to Java 3!
 136          sizeColumn = table.getColumn(pLabels.getLabel(1)+" -KB ");
 137          sizeColumn.setMaxWidth(100);
 138          table.getColumn(pLabels.getLabel(1)+" -KB ").setMinWidth(100);
 139          if (columnHeadColourBack != null && backgroundColour != null){
 140              errorMessage(System.out, "setting the tables colours");
 141              table.getTableHeader().setBackground(columnHeadColourBack);
 142              table.getTableHeader().setForeground(columnHeadColourFore);
 143              table.setBackground(backgroundColour);
 144          }
 145          JScrollPane scrollPane = new JScrollPane(table);
 146          scrollPane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
 147          
 148          // Add the scroll pane/table to the main pane
 149          pane.add(scrollPane, BorderLayout.CENTER);
 150          
 151          JPanel rightPanel = new JPanel(new GridLayout(4,1,10,10));
 152          rightPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
 153          
 154          add = new JButton(pLabels.getLabel(6));
 155          add.addMouseListener(this);
 156          rightPanel.add(add);
 157          
 158          remove = new JButton(pLabels.getLabel(7));
 159          remove.addMouseListener(this);
 160          remove.setEnabled(false);
 161          rightPanel.add(remove);
 162          
 163          upload = new JButton(pLabels.getLabel(8));
 164          upload.addMouseListener(this);
 165          upload.setEnabled(false);
 166          rightPanel.add(upload);
 167          
 168          help = new JButton(pLabels.getLabel(9));
 169          help.addMouseListener(this);
 170          rightPanel.add(help);
 171          pane.add(rightPanel,"East");
 172          
 173          JPanel progPanel = new JPanel(new GridLayout(2, 1));
 174          progPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
 175          
 176          progCompletion = new JLabel(pLabels.getLabel(10),SwingConstants.CENTER);
 177          progPanel.add(progCompletion);
 178          
 179          progBar = new JProgressBar();
 180          progPanel.add(progBar);
 181          progPanel.setBorder(BorderFactory.createEmptyBorder(5,25,5,25));
 182          
 183          if (backgroundColour != null){
 184              pane.setBackground(backgroundColour);
 185              rightPanel.setBackground(backgroundColour);
 186              scrollPane.setBackground(backgroundColour);
 187              progPanel.setBackground(backgroundColour);
 188          }
 189          // Always set the table background colour as White.
 190          // May change this if required, only would require alot of Params!
 191          scrollPane.getViewport().setBackground(Color.white);
 192          
 193          pane.add(progPanel,"South");
 194          
 195          // If the destination has not been set/isn't a proper URL
 196          // Then deactivate the buttons.
 197          if (destinationURL == null)
 198              add.setEnabled(false);
 199      }
 200      
 201      public void errorMessage(PrintStream out, String message){
 202          out.println("***"+message+"***");
 203      }
 204      
 205      // Helper method for getting the parameters from the webpage.
 206      private void getParameters(){
 207          
 208          /*  LANGUAGE */
 209          try {
 210              language = getParameter("language");
 211              if (language == "" || language == null)
 212                  language = "EN";
 213          } catch (NullPointerException nullLang){
 214              // Default language being set
 215              language = "EN";
 216              errorMessage(System.out,"language is null");
 217          }
 218          
 219          /*  DESTINATION  */
 220          try {
 221              destinationURL = new URL(getParameter("destination"));
 222          // Following line is for testing, and to hard code the applet to postlet.com
 223          //destinationURL = new URL("http://www.postlet.com/example/javaUpload.php");
 224          } catch(java.net.MalformedURLException malurlex){
 225              // Do something here for badly formed destination, which is ESENTIAL.
 226              errorMessage(System.out, "Badly formed destination:###"+getParameter("destination")+"###");
 227              JOptionPane.showMessageDialog(null, pLabels.getLabel(3),pLabels.getLabel(5), JOptionPane.ERROR_MESSAGE);
 228          } catch(java.lang.NullPointerException npe){
 229              // Do something here for the missing destination, which is ESENTIAL.
 230              errorMessage(System.out,"destination is null");
 231              JOptionPane.showMessageDialog(null, pLabels.getLabel(4), pLabels.getLabel(5), JOptionPane.ERROR_MESSAGE);
 232          }
 233          
 234          /*  BACKGROUND  */
 235          try {
 236              Integer bgci = new Integer(getParameter("backgroundcolour"));
 237              backgroundColour = new Color(bgci.intValue());
 238          } catch(NumberFormatException numfe){
 239              errorMessage(System.out, "background colour is not a number:###"+getParameter("backgroundcolour")+"###");
 240          } catch (NullPointerException nullred){
 241              errorMessage(System.out, "background colour is null");
 242          }
 243          
 244          /*  TABLEHEADERFOREGROUND  */
 245          try {
 246              Integer thfi = new Integer(getParameter("tableheadercolour"));
 247              columnHeadColourFore = new Color(thfi.intValue());
 248          } catch(NumberFormatException numfe){
 249              errorMessage(System.out, "table header colour is not a number:###"+getParameter("tableheadcolour")+"###");
 250          } catch (NullPointerException nullred){
 251              errorMessage(System.out, "table header colour is null");
 252          }
 253          
 254          /*  TABLEHEADERBACKGROUND  */
 255          try {
 256              Integer thbi = new Integer(getParameter("tableheaderbackgroundcolour"));
 257              columnHeadColourBack = new Color(thbi.intValue());
 258          } catch(NumberFormatException numfe){
 259              errorMessage(System.out, "table header back colour is not a number:###"+getParameter("tableheaderbackgroundcolour")+"###");
 260          } catch (NullPointerException nullred){
 261              errorMessage(System.out, "table header back colour is null");
 262          }
 263          
 264          /*  FILEEXTENSIONS  */
 265          try {
 266              fileExtensions = getParameter("fileextensions").split(",");
 267          } catch(NullPointerException nullfileexts){
 268              errorMessage(System.out, "file extensions is null");
 269          }
 270          
 271          /*  WARNINGMESSAGE  */
 272          try {
 273              if (getParameter("warnmessage").toLowerCase() == "true")
 274                  warnMessage = true;
 275              else
 276                  warnMessage = false;
 277          } catch(NullPointerException nullwarnmessage){
 278              errorMessage(System.out, "warnmessage is null");
 279              warnMessage = false;
 280          }
 281          
 282          /*  AUTOUPLOAD  */
 283          try {
 284              if (getParameter("autoupload").toLowerCase() == "true")
 285                  autoUpload = true;
 286              else
 287                  autoUpload = false;
 288          } catch(NullPointerException nullwarnmessage){
 289              errorMessage(System.out, "autoUpload is null");
 290              autoUpload = false;
 291          }
 292          
 293          /*  MAXTHREADS  */
 294          try {
 295              Integer maxts = new Integer(getParameter("maxthreads"));
 296              maxThreads = maxts.intValue();
 297          } catch (NullPointerException nullmaxthreads){
 298              errorMessage(System.out, "maxthreads is null");
 299          } catch (NumberFormatException nummaxthreads){
 300              errorMessage(System.out, "maxthread is not a number");}
 301          
 302          /*  ENDPAGE  */
 303          try {
 304              endPageURL = new URL(getParameter("endpage"));
 305          } catch(java.net.MalformedURLException malurlex){
 306              errorMessage(System.out, "endpage is badly formed:###"+getParameter("endpage")+"###");
 307          } catch(java.lang.NullPointerException npe){
 308              errorMessage(System.out, "endpage is null");
 309          }
 310          
 311          /*  HELPPAGE  */
 312          try {
 313              helpPageURL = new URL(getParameter("helppage"));
 314          } catch(java.net.MalformedURLException malurlex){
 315              errorMessage(System.out, "helppage is badly formed:###"+getParameter("helppage")+"###");
 316          } catch(java.lang.NullPointerException npe){
 317              errorMessage(System.out, "helppage is null");
 318          }
 319      }
 320      
 321      public void removeClick() {
 322          if(table.getSelectedRowCount()>0) {
 323              File [] fileTemp = new File[files.length-table.getSelectedRowCount()];
 324              int [] selectedRows = table.getSelectedRows();
 325              Arrays.sort(selectedRows);
 326              int k=0;
 327              for (int i=0; i<files.length;i++){
 328                  if (Arrays.binarySearch(selectedRows,i)<0){
 329                      fileTemp[k]=files[i];
 330                      k++;
 331                  }
 332              }
 333              files = fileTemp;
 334              tableUpdate();
 335          }
 336          if (files.length==0) {
 337              upload.setEnabled(false);
 338              remove.setEnabled(false);
 339          }
 340      }
 341      
 342      public void uploadClick() {
 343          if(files.length>0) {
 344              if (warnMessage){
 345                  JOptionPane.showMessageDialog(null, pLabels.getLabel(11), pLabels.getLabel(12), JOptionPane.INFORMATION_MESSAGE);
 346              }
 347              add.setEnabled(false);
 348              remove.setEnabled(false);
 349              help.setEnabled(false);
 350              upload.setEnabled(false);
 351              sentBytes = 0;
 352              progBar.setMaximum(totalBytes);
 353              progBar.setMinimum(0);
 354              UploadManager u;
 355              try {
 356                  u = new UploadManager(files, this, destinationURL, maxThreads);
 357              } catch(java.lang.NullPointerException npered){
 358                  u = new UploadManager(files, this, destinationURL);
 359              }
 360              u.start();
 361          }
 362      }
 363      
 364      public synchronized void setProgress(int a) {
 365          sentBytes += a;
 366          progBar.setValue(sentBytes);
 367          if (sentBytes == totalBytes){
 368              progCompletion.setText(pLabels.getLabel(2));
 369              if (endPageURL != null){
 370                  getAppletContext().showDocument(endPageURL);
 371              } else {
 372                  // Just ignore this error, as it is most likely from the endpage
 373                  // not being set.
 374                  // Attempt at calling Javascript after upload is complete.
 375                  JSObject win = (JSObject) JSObject.getWindow(this);
 376                  win.eval("postletFinished();");
 377              }
 378              // Reset the applet
 379              progBar.setValue(0);
 380              files = new File[0];
 381              tableUpdate();
 382              add.setEnabled(true);
 383              help.setEnabled(true);
 384          }
 385      }
 386      
 387      public void tableUpdate() {
 388          totalBytes = 0;
 389          String [] filenames = new String[files.length];
 390          int [] fileSize = new int[files.length];
 391          for(int i=0; i<files.length; i++) {
 392              filenames[i] = files[i].getAbsolutePath();
 393              fileSize[i] = (int)files[i].length();
 394              totalBytes += (int)files[i].length();
 395          }
 396          int i=0;
 397          String [][] rowData = new String[255][2];
 398          while(i<files.length) {
 399              rowData[i][0] = files[i].getName();
 400              rowData[i][1] = ""+files[i].length();
 401              i++;
 402          }
 403          tabledata.formatTable(rowData,i);
 404          sizeColumn.setMaxWidth(100);
 405          sizeColumn.setMinWidth(100);
 406          repaint();
 407      }
 408      
 409      public void addClick() {
 410          JFileChooser chooser = new JFileChooser();
 411          
 412          progBar.setValue(0);
 413          if (fileExtensions != null){
 414              UploaderFileFilter filter = new UploaderFileFilter();
 415              for (int i=1; i<fileExtensions.length; i++){                
 416                  filter.addExtension(fileExtensions[i]);
 417              }
 418              filter.setDescription(fileExtensions[0]);
 419              chooser.addChoosableFileFilter(filter);
 420          }
 421          else {
 422              chooser.setFileFilter(chooser.getAcceptAllFileFilter());
 423          }
 424          
 425          chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
 426          chooser.setMultiSelectionEnabled(true);
 427          chooser.getSelectedFile();
 428          chooser.setDialogTitle(pLabels.getLabel(14));
 429          int returnVal = chooser.showOpenDialog(null);
 430          if (returnVal == JFileChooser.APPROVE_OPTION) {
 431              File [] tempFiles = chooser.getSelectedFiles();
 432              Vector filesForUpload = new Vector();
 433              for (int i=0; i<tempFiles.length; i++){
 434                  if (tempFiles[i].isDirectory()){
 435                      File [] subDirFiles = tempFiles[i].listFiles();
 436                      for (int j = 0; j<subDirFiles.length; j++){
 437                          if (subDirFiles[j].isFile())
 438                              filesForUpload.add(subDirFiles[j]);
 439                      }
 440                      
 441                  } else
 442                      filesForUpload.add(tempFiles[i]);
 443              }
 444              if (files == null){
 445                  files = new File[0];
 446              }
 447              tempFiles = new File[filesForUpload.size()+files.length];
 448              for (int i=0; i<files.length; i++)
 449                  tempFiles[i] = files[i];
 450              for (int i=0; i<filesForUpload.size(); i++){
 451                  tempFiles[i+files.length] = (File)filesForUpload.elementAt(i);
 452              }
 453              files = tempFiles;
 454              tableUpdate();
 455          }
 456          if (files != null && files.length>0) {
 457              upload.setEnabled(true);
 458              remove.setEnabled(true);
 459          }
 460          if (files !=null && autoUpload){
 461              uploadClick();
 462          }
 463      }
 464      
 465      public void helpClick() {
 466          // Open a web page in another frame/window
 467          // Unless specified as a parameter, this will be a help page
 468          // on the postlet website.
 469          
 470          try {
 471              getAppletContext().showDocument(helpPageURL, "_blank");
 472          } catch (NullPointerException nohelppage){
 473              // Show a popup with help instead!
 474              try {getAppletContext().showDocument(new URL("http://www.postlet.com/help/"), "_blank");}catch(MalformedURLException mfue){;}
 475          }
 476          
 477      }
 478      
 479      public String getCookie(){
 480          
 481          // Method reads the cookie in from the Browser using the LiveConnect object.
 482          // May also add an option to set the cookie using an applet parameter FIXME!
 483          try {
 484              JSObject win = (JSObject) JSObject.getWindow(this);
 485              String cookie = ""+(String)win.eval("document.cookie");
 486              return cookie;
 487          }
 488          catch (Exception e){
 489              return "";
 490          }
 491      }
 492      
 493      public void javascriptAddClicked(){
 494          
 495          // Set a variable so that the listening thread can call the add click method
 496          buttonClicked = 0;
 497          javascript = true;
 498      }
 499      public void javascriptUploadClicked(){
 500          
 501          // As above
 502          buttonClicked = 1;
 503          javascript = true;
 504      }
 505      public boolean getJavascriptStatus(){
 506          
 507          return javascript;
 508      }
 509      public void setJavascriptStatus(){
 510          
 511          javascript = false;
 512      }
 513      public boolean isUploadEnabled(){
 514          
 515          return upload.isEnabled();
 516      }
 517      public boolean isAddEnabled(){
 518          
 519          return add.isEnabled();
 520      }
 521      public boolean isRemoveEnabled(){
 522          
 523          return remove.isEnabled();
 524      }
 525      public int getButtonClicked(){
 526          
 527          return buttonClicked;
 528      }
 529      
 530      public void mouseClicked(MouseEvent e) {
 531          if(e.getSource()==add && add.isEnabled())           {addClick();}
 532          if(e.getSource()==upload && upload.isEnabled())     {uploadClick();}
 533          if(e.getSource()==remove && remove.isEnabled())     {removeClick();}
 534          if(e.getSource()==help && help.isEnabled())         {helpClick();}
 535      }
 536      
 537      public void drop(DropTargetDropEvent dtde) {
 538          dtde.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
 539          Transferable trans = dtde.getTransferable();
 540          try {
 541          java.awt.datatransfer.DataFlavor dataFlavour [];
 542          dataFlavour = dtde.getCurrentDataFlavors();
 543          String mimeType;
 544          Vector filesFromDrop = new Vector();
 545          boolean filesFound = false;
 546          while (!filesFound){
 547              for (int i=0; i<dataFlavour.length; i++){/*
 548                  mimeType = dataFlavour[i].getMimeType();
 549                  System.out.println(i+": "+dataFlavour[i].toString());
 550                  System.out.println(i+": "+mimeType);
 551                  System.out.println(i+": "+dataFlavour[i].getPrimaryType());
 552                  System.out.println(i+": "+dataFlavour[i].getHumanPresentableName());
 553                  System.out.println(i+": "+dataFlavour[i].getSubType());*/
 554                  if (dataFlavour[i].isFlavorJavaFileListType()){
 555                      // Windows
 556                      System.out.println("Windows");
 557                      List listOfFiles = (List)trans.getTransferData(DataFlavor.javaFileListFlavor);
 558                      Iterator iter = listOfFiles.iterator();
 559                      while (iter.hasNext()) {
 560                          File tempFile = (File) iter.next();
 561                          filesFromDrop.add(tempFile);
 562                      }
 563                      filesFound = true;
 564                  } else if (dataFlavour[i].equals(uriListFlavor)){
 565                      // Linux
 566                      BufferedReader in = new BufferedReader(dataFlavour[i].getReaderForText(trans));
 567                      String line = in.readLine();
 568                      while(line!=null && line !=""){
 569                          try {
 570                              File tempFile = new File(new URI(line));
 571                              filesFromDrop.add(tempFile);
 572                          }
 573                          catch (java.net.URISyntaxException usee){;}
 574                          catch (java.lang.IllegalArgumentException iae){;}
 575                          line = in.readLine();
 576                      }
 577                      filesFound = true;
 578                  }
 579              }
 580          }
 581          File [] tempFiles = new File[filesFromDrop.size()];
 582          filesFromDrop.copyInto(tempFiles);
 583          Vector filesForUpload = new Vector();
 584          for (int j=0; j<tempFiles.length; j++){
 585              if (tempFiles[j].isDirectory()){
 586                  File [] subDirFiles = tempFiles[j].listFiles();
 587                  for (int k = 0; k<subDirFiles.length; k++){
 588                      if (subDirFiles[k].isFile())
 589                          filesForUpload.add(subDirFiles[k]);
 590                  }
 591                  
 592              } else
 593              filesForUpload.add(tempFiles[j]);
 594          }
 595          if (files == null){
 596              files = new File[0];
 597          }
 598          tempFiles = new File[filesForUpload.size()+files.length];
 599          for (int j=0; j<files.length; j++)
 600              tempFiles[j] = files[j];
 601          for (int j=0; j<filesForUpload.size(); j++){
 602              tempFiles[j+files.length] = (File)filesForUpload.elementAt(j);
 603          }
 604          files = tempFiles;
 605          tableUpdate();
 606          
 607          if (files != null && files.length>0) {
 608              upload.setEnabled(true);
 609              remove.setEnabled(true);
 610          }
 611          if (files !=null && autoUpload){
 612              uploadClick();
 613          }
 614          
 615          }
 616          catch (java.awt.datatransfer.UnsupportedFlavorException usfe){;}
 617          catch (java.io.IOException ioe){;}
 618          dtde.dropComplete(true);
 619      }
 620      public void dropActionChanged(DropTargetDragEvent dtde){;}
 621      public void dragOver(DropTargetDragEvent dtde){;}
 622      public void dragExit(DropTargetEvent dte){;}
 623      public void dragEnter(DropTargetDragEvent dtde){;}
 624      
 625      public void mouseEntered(MouseEvent e){;}
 626      public void mouseExited(MouseEvent e){;}
 627      public void mousePressed(MouseEvent e){;}
 628      public void mouseReleased(MouseEvent e){;}
 629      
 630  }
 631  
 632