Java tutorial
/* File: ExplorerPanel.java ; This file is part of Twister. Version: 2.007 Copyright (C) 2012-2013 , Luxoft Authors: Andrei Costachi <acostachi@luxoft.com> Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ import java.awt.datatransfer.StringSelection; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.JMenuItem; import javax.swing.JScrollPane; import javax.swing.JTree; import javax.swing.tree.MutableTreeNode; import javax.swing.tree.DefaultTreeModel; import javax.swing.tree.DefaultMutableTreeNode; import java.io.File; import java.awt.BorderLayout; import java.awt.dnd.DragSource; import java.awt.event.MouseAdapter; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseListener; import java.awt.event.MouseEvent; import javax.swing.TransferHandler; import java.awt.dnd.DragSource; import java.awt.dnd.DropTarget; import java.awt.dnd.DnDConstants; import java.awt.dnd.DragGestureListener; import java.awt.dnd.DragGestureEvent; import javax.swing.tree.TreePath; import java.awt.dnd.DragSourceDropEvent; import java.awt.dnd.DragSourceDragEvent; import java.awt.dnd.DragSourceEvent; import java.awt.dnd.DragSourceContext; import java.io.IOException; import com.jcraft.jsch.ChannelSftp; import com.jcraft.jsch.ChannelSftp.LsEntry; import java.util.Vector; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import javax.xml.parsers.ParserConfigurationException; import org.xml.sax.SAXException; import java.io.IOException; import java.util.Comparator; import java.util.Collections; import com.jcraft.jsch.SftpException; import java.net.URL; import java.net.URLConnection; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Scanner; import java.awt.Container; import javax.swing.tree.TreeModel; import java.awt.Dimension; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.io.InputStream; import java.io.FileInputStream; import java.io.InputStreamReader; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileWriter; import javax.swing.JTextArea; import javax.swing.JFrame; import javax.swing.JButton; import java.awt.BorderLayout; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JMenuBar; import javax.swing.JMenu; import java.awt.event.MouseMotionAdapter; import javax.swing.text.PlainDocument; import java.io.FileReader; import javax.swing.InputMap; import javax.swing.JComponent; import javax.swing.KeyStroke; import java.awt.event.KeyEvent; import java.awt.event.InputEvent; import java.awt.event.KeyAdapter; import javax.swing.JProgressBar; import com.google.gson.JsonObject; import javax.swing.SwingUtilities; import javax.swing.JOptionPane; import java.util.Iterator; import java.util.Map.Entry; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.JFileChooser; import javax.swing.BorderFactory; import java.awt.Color; import java.awt.Dimension; import com.google.gson.JsonPrimitive; import javax.swing.JComboBox; import javax.swing.JCheckBox; import javax.swing.DefaultComboBoxModel; import javax.swing.GroupLayout; import java.awt.event.ItemListener; import java.awt.event.ItemEvent; import com.twister.Item; import com.twister.CustomDialog; import com.jcraft.jsch.JSch; import com.jcraft.jsch.Session; import com.jcraft.jsch.Channel; import com.jcraft.jsch.ChannelSftp; import java.util.Properties; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.StringSelection; import java.awt.dnd.DragSourceListener; import javax.swing.tree.TreeSelectionModel; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.io.IOException; import java.util.ArrayList; import javax.swing.tree.DefaultTreeModel; import javax.swing.tree.TreePath; public class ExplorerPanel { private static final long serialVersionUID = 1L; public JTree tree; private DefaultMutableTreeNode root; private boolean dragging; private TreePath[] selected; private DefaultMutableTreeNode child2; private JEditTextArea textarea; public static ChannelSftp connection; public static Session session; public DragSource ds; public ExplorerPanel(boolean applet) { RunnerRepository.introscreen.setStatus("Started Explorer interface initialization"); RunnerRepository.introscreen.addPercent(0.035); RunnerRepository.introscreen.repaint(); initializeSftp(); root = new DefaultMutableTreeNode("root", true); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { connection.cd(RunnerRepository.getTestSuitePath()); RunnerRepository.introscreen.setStatus("Started retrieving tc directories"); RunnerRepository.introscreen.addPercent(0.035); RunnerRepository.introscreen.repaint(); getList(root, connection, RunnerRepository.getTestSuitePath()); RunnerRepository.introscreen.setStatus("Finished retrieving tc directories"); RunnerRepository.introscreen.addPercent(0.035); RunnerRepository.introscreen.repaint(); } catch (Exception e) { e.printStackTrace(); } tree = new JTree(root); tree.setDragEnabled(true); tree.setTransferHandler(new TransferHandler() { protected Transferable createTransferable(JComponent c) { return new StringSelection("tc"); } // public int getSourceActions(JComponent c) { return TransferHandler.COPY_OR_MOVE; } }); tree.expandRow(1); tree.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent ev) { treeClick(ev); } public void mouseReleased(MouseEvent ev) { treeClickReleased(ev); } }); // ds = new DragSource(); // ds.getDefaultDragSource(). // ds.getDefaultDragSource(); // ds.createDefaultDragGestureRecognizer(tree, // DnDConstants.ACTION_COPY_OR_MOVE, new TreeDragGestureListener()); // tree.setDragEnabled(true); // TransferHandler t = new TransferHandler(){ // public Transferable createTransferable(JComponent c){ // return new StringSelection("ExplorerPanel"); // } // }; // tree.setTransferHandler(t); tree.setRootVisible(false); RunnerRepository.introscreen.setStatus("Finished Explorer interface initialization"); RunnerRepository.introscreen.addPercent(0.035); RunnerRepository.introscreen.repaint(); } /* * executed on tree released click */ public void treeClickReleased(MouseEvent ev) { if (ev.isPopupTrigger()) { refreshPopup(ev); } else { if ((tree.getSelectionPaths() != null) && (tree.getSelectionPaths().length == 1) && (tree.getModel().isLeaf(tree.getSelectionPath().getLastPathComponent()))) { try { String thefile = tree.getSelectionPath().getParentPath().getLastPathComponent().toString() + "/" + tree.getSelectionPath().getLastPathComponent().toString(); String result = RunnerRepository.getRPCClient().execute("getTestDescription", new Object[] { thefile }) + ""; Container pan1 = (Container) RunnerRepository.window.mainpanel.p1.splitPane.getComponent(1); TCDetails pan2 = (TCDetails) pan1.getComponents()[1]; pan2.text.setText(result); } catch (Exception e) { e.printStackTrace(); } } } } /* * executed on tree click */ public void treeClick(MouseEvent ev) { if (ev.isPopupTrigger()) { refreshPopup(ev); } else { setDragging(true); selected = tree.getSelectionPaths(); if (selected != null) { int left = 0; int right = selected.length - 1; while (left < right) { TreePath temp = selected[left]; selected[left] = selected[right]; selected[right] = temp; left++; right--; } } } } /* * returns the selected paths */ public TreePath[] getSelected() { Arrays.sort(selected, new Compare()); List<TreePath> listOfPaths = Arrays.asList(selected); Collections.reverse(listOfPaths); selected = listOfPaths.toArray(new TreePath[] {}); return selected; } /* * popup displayed on tree panel */ public void refreshPopup(final MouseEvent ev) { JPopupMenu p = new JPopupMenu(); JMenuItem item = new JMenuItem("Refresh tree"); p.add(item); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evnt) { refreshTree(ev); } }); final String editable; if (tree.getSelectionPath() != null) { editable = tree.getSelectionPath().getLastPathComponent() + ""; } else { editable = ""; } if ((tree.getSelectionPath() != null) && (tree.getSelectionPaths().length == 1) && (tree.getModel().isLeaf(tree.getSelectionPath().getLastPathComponent())) && ((editable.indexOf(".tcl") != -1) || (editable.indexOf(".py") != -1) || (editable.indexOf(".java") != -1) || (editable.indexOf(".pl") != -1))) { item = new JMenuItem("Edit"); p.add(item); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { editTC(editable); } }); if (!PermissionValidator.canEditTC()) { item.setEnabled(false); } item = new JMenuItem("Unit testing"); p.add(item); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { unitTesting(editable); } }); item = new JMenuItem("Edit with"); p.add(item); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evnt) { editWith(editable); } }); if (!PermissionValidator.canEditTC()) { item.setEnabled(false); } item = new JMenuItem("Editors"); p.add(item); if (!PermissionValidator.canEditTC()) { item.setEnabled(false); } item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evnt) { try { new Editors(ev.getLocationOnScreen()).setVisible(true); } catch (Exception e) { System.out.println("There was an error in opening editors" + " configuration window, please check " + "configuration file"); e.printStackTrace(); } } }); } // if ((tree.getSelectionPath()!=null)&&(tree.getSelectionPaths().length == 1) // && (tree.getModel().isLeaf(tree.getSelectionPath() // .getLastPathComponent()))){ // item = new JMenuItem("Unit testing"); // p.add(item); // item.addActionListener(new ActionListener(){ // public void actionPerformed(ActionEvent ev){ // unitTesting();}}); // } p.show(tree, ev.getX(), ev.getY()); } // /* // * unit testing window // */ // public void unitTesting(){ // String remotefilename = tree.getSelectionPath().getPathComponent( // tree.getSelectionPath().getPathCount() - 2)+ // "/" + tree.getSelectionPath().getLastPathComponent(); // System.out.println("remotefilename:"+remotefilename); // UnitTesting testing = new UnitTesting(); // testing.setBounds(300,100,800,600); // testing.setVisible(true); // } /* * Propmpts user to select editor and * opens selected editor for editing TC */ public void editWith(String editable) { try { JsonObject editors = RunnerRepository.getEditors(); int length = editors.entrySet().size(); Iterator iter = editors.entrySet().iterator(); Entry entry; String[] vecresult; if (editors.get("DEFAULT") != null) { vecresult = new String[length - 1]; } else { vecresult = new String[length]; } int index = 0; for (int i = 0; i < length; i++) { entry = (Entry) iter.next(); if (entry.getKey().toString().equals("DEFAULT")) { continue; } vecresult[index] = entry.getKey().toString(); index++; } JComboBox jComboBox1 = new JComboBox(); JPanel p = getEditorsPanel(jComboBox1, vecresult); Object[] message = new Object[] { p }; int r = (Integer) CustomDialog.showDialog(p, JOptionPane.QUESTION_MESSAGE, JOptionPane.OK_CANCEL_OPTION, tree, "Please select an editor", null); if (r == JOptionPane.OK_OPTION) { String ID = jComboBox1.getSelectedItem().toString(); String remotefilename = tree.getSelectionPath() .getPathComponent(tree.getSelectionPath().getPathCount() - 2) + "/" + tree.getSelectionPath().getLastPathComponent(); String localfilename = RunnerRepository.temp + RunnerRepository.getBar() + "Twister" + RunnerRepository.getBar() + tree.getSelectionPath().getLastPathComponent(); if (ID.equals("Embedded")) { openEmbeddedEditor(editable, remotefilename, localfilename); } else { File file2 = copyFileLocaly(remotefilename, localfilename); String execute = RunnerRepository.getEditors().get(ID).getAsString(); executeCommand(execute, localfilename); sendFileToServer(file2, remotefilename); file2.delete(); } } } catch (Exception e) { System.out .println("There was an error in opening editors " + "window, please check configuration file"); e.printStackTrace(); } } /* * creates the editors panel */ public JPanel getEditorsPanel(JComboBox jComboBox1, String[] vecresult) { JPanel p = new JPanel(); JLabel jLabel1 = new JLabel(); jLabel1.setText("Editor: "); jComboBox1.setModel(new DefaultComboBoxModel(vecresult)); GroupLayout layout = new GroupLayout(p); p.setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel1)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 84, javax.swing.GroupLayout.PREFERRED_SIZE)) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel1) .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))); return p; } /* * open unit testing window to edit editable */ public void unitTesting(String editable) { String remotefilename = tree.getSelectionPath().getPathComponent(tree.getSelectionPath().getPathCount() - 2) + "/" + tree.getSelectionPath().getLastPathComponent(); String localfilename = RunnerRepository.temp + RunnerRepository.getBar() + "Twister" + RunnerRepository.getBar() + tree.getSelectionPath().getLastPathComponent(); new UnitTesting(editable, localfilename, remotefilename); } /* * open default editor and edit selected TC */ public void editTC(String editable) { String defaulteditor; try { defaulteditor = RunnerRepository.getEditors().get("DEFAULT").getAsString(); } catch (Exception e) { System.out.println("Default Editor not present, using embedded"); defaulteditor = "Embedded"; } String remotefilename = tree.getSelectionPath().getPathComponent(tree.getSelectionPath().getPathCount() - 2) + "/" + tree.getSelectionPath().getLastPathComponent(); String localfilename = RunnerRepository.temp + RunnerRepository.getBar() + "Twister" + RunnerRepository.getBar() + tree.getSelectionPath().getLastPathComponent(); if (defaulteditor.equals("Embedded")) { openEmbeddedEditor(editable, remotefilename, localfilename); } else { File file2 = copyFileLocaly(remotefilename, localfilename); executeCommand(RunnerRepository.getEditors().get(defaulteditor).toString(), localfilename); sendFileToServer(file2, remotefilename); file2.delete(); } } /* * refresh tree structure */ public void refreshTree(final MouseEvent ev) { new Thread() { public void run() { setEnabledTabs(false); JFrame progress = new JFrame(); progress.setAlwaysOnTop(true); progress.setLocation((int) ev.getLocationOnScreen().getX(), (int) ev.getLocationOnScreen().getY()); progress.setUndecorated(true); JProgressBar bar = new JProgressBar(); bar.setIndeterminate(true); progress.add(bar); progress.pack(); progress.setVisible(true); refreshStructure(); progress.dispose(); setEnabledTabs(true); } }.start(); } /* * executes the command for opening an editor */ public void executeCommand(String command, String arg) { try { String line; command = command.replace("\\", "\\\\"); arg = arg.replace("\\", "\\\\"); System.out.println("Executing " + command + " command"); Process p = Runtime.getRuntime().exec(new String[] { command, arg }); p.waitFor(); System.out.println(p.exitValue()); } catch (Exception err) { System.out.println("Error in executing " + command + " command"); err.printStackTrace(); } } /* * opens a window for embeded editor */ public void openEmbeddedEditor(String editable, final String remotefile, final String localfile) { final JFrame f = new JFrame(); tree.setEnabled(false); RunnerRepository.window.mainpanel.p1.sc.g.setCanRequestFocus(false); f.setVisible(true); f.setBounds(200, 100, 500, 600); textarea = new JEditTextArea(); f.setFocusTraversalKeysEnabled(false); textarea.setFocusTraversalKeysEnabled(false); JPopupMenu p = new JPopupMenu(); JMenuItem item; item = new JMenuItem("Copy"); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { textarea.copy(); } }); p.add(item); item = new JMenuItem("Cut"); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { textarea.cut(); } }); p.add(item); item = new JMenuItem("Paste"); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { textarea.paste(); } }); p.add(item); textarea.setRightClickPopup(p); textarea.getDocument().putProperty(PlainDocument.tabSizeAttribute, 4); if (editable.indexOf(".tcl") != -1) { textarea.setTokenMarker(new TCLTokenMarker()); } else if (editable.indexOf(".py") != -1 || editable.indexOf(".java") != -1) { textarea.setTokenMarker(new PythonTokenMarker()); } else if (editable.indexOf(".pl") != -1) { textarea.setTokenMarker(new PerlTokenMarker()); } f.add(textarea); JButton save = new JButton("Save"); save.setPreferredSize(new Dimension(70, 20)); save.setMaximumSize(new Dimension(70, 20)); final File file = new File(localfile); JMenuBar menu = new JMenuBar(); JMenu filemenu = new JMenu("File"); JMenuItem saveuser = new JMenuItem("Save"); saveuser.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { try { FileWriter filewriter = new FileWriter(file); BufferedWriter out = new BufferedWriter(filewriter); out.write(textarea.getText()); out.flush(); out.close(); filewriter.close(); sendFileToServer(file, remotefile); } catch (Exception e) { System.out.println("Could not save file localy : " + localfile); } } }); filemenu.add(saveuser); menu.add(filemenu); f.setJMenuBar(menu); File file2 = copyFileLocaly(remotefile, localfile); BufferedReader bufferedReader = null; try { bufferedReader = new BufferedReader(new FileReader(file2)); } catch (Exception e) { e.printStackTrace(); } String line = null; try { StringBuffer buf = new StringBuffer(); while ((line = bufferedReader.readLine()) != null) { buf.append(line + "\n"); } bufferedReader.close(); textarea.setText(buf.toString()); textarea.setCaretPosition(0); } catch (Exception e) { System.out.println("failed to read file localy"); e.printStackTrace(); } f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent ev) { tree.setEnabled(true); RunnerRepository.window.mainpanel.p1.sc.g.setCanRequestFocus(true); if (file.delete()) { System.out.println("File deleted successfully"); } textarea.setText(""); f.dispose(); } }); } public static File copyFileLocaly(String filename, String localfilename) { InputStream in = null; System.out.print("Getting " + filename + " ...."); try { in = connection.get(filename); } catch (Exception e) { System.out.println("Could not get :" + filename); e.printStackTrace(); } InputStreamReader inputStreamReader = new InputStreamReader(in); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); BufferedWriter writer = null; String line; File file2 = new File(localfilename); try { writer = new BufferedWriter(new FileWriter(file2)); while ((line = bufferedReader.readLine()) != null) { writer.write(line); writer.newLine(); } writer.flush(); bufferedReader.close(); writer.close(); inputStreamReader.close(); in.close(); System.out.println("successfull"); } catch (Exception e) { System.out.println("failed"); e.printStackTrace(); } return file2; } public static void sendFileToServer(File localfile, String remotefile) { try { FileInputStream in = new FileInputStream(localfile); connection.put(in, remotefile); in.close(); } catch (Exception e) { e.printStackTrace(); System.out.println("There was a problem in saving file " + localfile.getName() + " on hdd and uploading it to " + remotefile); } } public void refreshStructure() { try { root.remove(0); } catch (Exception e) { e.printStackTrace(); } try { connection.cd(RunnerRepository.getTestSuitePath()); getList(root, connection, RunnerRepository.getTestSuitePath()); } catch (Exception e) { e.printStackTrace(); } ((DefaultTreeModel) tree.getModel()).reload(); tree.expandRow(0); selected = null; setDragging(false); } public void setEnabledTabs(boolean enable) { int nr = RunnerRepository.window.mainpanel.getTabCount(); for (int i = 1; i < nr; i++) { RunnerRepository.window.mainpanel.setEnabledAt(i, enable); } } public void setDragging(boolean drag) { dragging = drag; } public boolean getDragging() { return dragging; } /* * construct the list for folders representation in jtree */ public void getList(DefaultMutableTreeNode node, ChannelSftp c, String curentdir) { try { DefaultMutableTreeNode child = new DefaultMutableTreeNode(curentdir); Vector<LsEntry> vector1 = c.ls("."); Vector<String> vector = new Vector<String>(); Vector<String> folders = new Vector<String>(); Vector<String> files = new Vector<String>(); int lssize = vector1.size(); if (lssize > 2) { node.add(child); } String current; for (int i = 0; i < lssize; i++) { if (vector1.get(i).getFilename().split("\\.").length == 0) { continue; } if (vector1.get(i).getAttrs().isDir()) { folders.add(vector1.get(i).getFilename()); } else { files.add(vector1.get(i).getFilename()); } } Collections.sort(folders); Collections.sort(files); for (int i = 0; i < folders.size(); i++) { vector.add(folders.get(i)); } for (int i = 0; i < files.size(); i++) { vector.add(files.get(i)); } for (int i = 0; i < vector.size(); i++) { try { current = c.pwd(); c.cd(vector.get(i)); getList(child, c, curentdir + "/" + vector.get(i)); c.cd(current); } catch (SftpException e) { if (e.id == 4) { child2 = new DefaultMutableTreeNode(vector.get(i)); child.add(child2); } else { e.printStackTrace(); } } } } catch (Exception e) { e.printStackTrace(); } } private void initializeSftp() { try { JSch jsch = new JSch(); session = jsch.getSession(RunnerRepository.user, RunnerRepository.host, 22); session.setPassword(RunnerRepository.password); Properties config = new Properties(); config.put("StrictHostKeyChecking", "no"); session.setConfig(config); session.connect(); Channel channel = session.openChannel("sftp"); channel.connect(); connection = (ChannelSftp) channel; } catch (Exception e) { e.printStackTrace(); } } class Compare implements Comparator { public int compare(Object emp1, Object emp2) { return ((TreePath) emp1).getLastPathComponent().toString() .compareToIgnoreCase(((TreePath) emp2).getLastPathComponent().toString()); } } // class TreeDragGestureListener implements DragGestureListener { // public void dragGestureRecognized(DragGestureEvent dragGestureEvent) { // StringSelection str = new StringSelection("str"); // dragGestureEvent.startDrag(DragSource.DefaultCopyNoDrop, str); // System.out.println("Gesture recognized"); // } // } // class MyTree extends JTree implements DragGestureListener, DragSourceListener{ // private DragSource dragSource; // // public MyTree(DefaultMutableTreeNode node){ // super(node); // //setDragEnabled(true); // dragSource = new DragSource(); // dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, this); // getSelectionModel().setSelectionMode(TreeSelectionModel.CONTIGUOUS_TREE_SELECTION); // // } // // public void dragGestureRecognized(DragGestureEvent evt) { // if (evt.getDragAction()==DnDConstants.ACTION_MOVE){ // Transferable transferable = new StringSelection("tc"); // try{ // evt.startDrag(DragSource.DefaultCopyDrop, transferable); // // dragSource.startDrag(evt, DragSource.DefaultCopyDrop, transferable, this); // } catch(Exception e){ // e.printStackTrace(); // } // } // // // // } // // public void dragEnter(DragSourceDragEvent evt) { // } // // public void dragOver(DragSourceDragEvent evt) { // } // // public void dragExit(DragSourceEvent evt) { // } // // public void dropActionChanged(DragSourceDragEvent evt) { // } // // public void dragDropEnd(DragSourceDropEvent evt) { // } // // } }