public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   shell.setLayout(new RowLayout());
   Text text = new Text(shell, SWT.MULTI | SWT.BORDER);
   String modifier = SWT.MOD1 == SWT.CTRL ? "Ctrl" : "Command";
   text.setText("Hit " + modifier + "+Return\nto see\nthe default button\nrun");
   text.addTraverseListener(
       e -> {
         switch (e.detail) {
           case SWT.TRAVERSE_RETURN:
             if ((e.stateMask & SWT.MOD1) != 0) e.doit = true;
         }
       });
   Button button = new Button(shell, SWT.PUSH);
   button.pack();
   button.setText("OK");
   button.addSelectionListener(
       new SelectionAdapter() {
         @Override
         public void widgetSelected(SelectionEvent e) {
           System.out.println("OK selected");
         }
       });
   shell.setDefaultButton(button);
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
 }
Exemple #2
0
 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   shell.setLayout(new RowLayout());
   Combo combo = new Combo(shell, SWT.NONE);
   combo.setItems(new String[] {"A-1", "B-1", "C-1"});
   Text text = new Text(shell, SWT.SINGLE | SWT.BORDER);
   text.setText("some text");
   combo.addListener(
       SWT.DefaultSelection,
       new Listener() {
         public void handleEvent(Event e) {
           System.out.println(e.widget + " - Default Selection");
         }
       });
   text.addListener(
       SWT.DefaultSelection,
       new Listener() {
         public void handleEvent(Event e) {
           System.out.println(e.widget + " - Default Selection");
         }
       });
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
 }
  public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("SWT and Swing DND Example");
    GridLayout layout = new GridLayout(1, false);
    shell.setLayout(layout);

    Text swtText = new Text(shell, SWT.BORDER);
    swtText.setText("SWT Text");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    swtText.setLayoutData(data);
    setDragDrop(swtText);

    Composite comp = new Composite(shell, SWT.EMBEDDED);
    java.awt.Frame frame = SWT_AWT.new_Frame(comp);
    JTextField swingText = new JTextField(40);
    swingText.setText("Swing Text");
    swingText.setDragEnabled(true);
    frame.add(swingText);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = swingText.getPreferredSize().height;
    comp.setLayoutData(data);

    shell.setSize(400, 200);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
  void createRTFTransfer(Composite copyParent, Composite pasteParent) {
    //	RTF Transfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("RTFTransfer:"); // $NON-NLS-1$
    copyRtfText = new Text(copyParent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    copyRtfText.setText("some\nrtf\ntext");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    copyRtfText.setLayoutData(data);
    Button b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(SelectionEvent e) {
            String data = copyRtfText.getText();
            if (data.length() > 0) {
              status.setText("");
              data = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\uc1\\b\\i " + data + "}";
              clipboard.setContents(
                  new Object[] {data}, new Transfer[] {RTFTransfer.getInstance()});
            } else {
              status.setText("nothing to copy");
            }
          }
        });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("RTFTransfer:"); // $NON-NLS-1$
    pasteRtfText =
        new Text(pasteParent, SWT.READ_ONLY | SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteRtfText.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(SelectionEvent e) {
            String data = (String) clipboard.getContents(RTFTransfer.getInstance());
            if (data != null && data.length() > 0) {
              status.setText("");
              pasteRtfText.setText("start paste>" + data + "<end paste");
            } else {
              status.setText("nothing to paste");
            }
          }
        });
  }
  void createHTMLTransfer(Composite copyParent, Composite pasteParent) {
    //	HTML Transfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("HTMLTransfer:"); // $NON-NLS-1$
    copyHtmlText = new Text(copyParent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    copyHtmlText.setText("<b>Hello World</b>");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    copyHtmlText.setLayoutData(data);
    Button b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(SelectionEvent e) {
            String data = copyHtmlText.getText();
            if (data.length() > 0) {
              status.setText("");
              clipboard.setContents(
                  new Object[] {data}, new Transfer[] {HTMLTransfer.getInstance()});
            } else {
              status.setText("nothing to copy");
            }
          }
        });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("HTMLTransfer:"); // $NON-NLS-1$
    pasteHtmlText =
        new Text(pasteParent, SWT.READ_ONLY | SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteHtmlText.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(SelectionEvent e) {
            String data = (String) clipboard.getContents(HTMLTransfer.getInstance());
            if (data != null && data.length() > 0) {
              status.setText("");
              pasteHtmlText.setText("start paste>" + data + "<end paste");
            } else {
              status.setText("nothing to paste");
            }
          }
        });
  }
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout(2, false));

    final Text text = new Text(shell, SWT.SEARCH | SWT.ICON_CANCEL);
    Image image = null;
    if ((text.getStyle() & SWT.ICON_CANCEL) == 0) {
      image = display.getSystemImage(SWT.ICON_ERROR);
      ToolBar toolBar = new ToolBar(shell, SWT.FLAT);
      ToolItem item = new ToolItem(toolBar, SWT.PUSH);
      item.setImage(image);
      item.addSelectionListener(
          new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
              text.setText("");
              System.out.println("Search cancelled");
            }
          });
    }
    text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    text.setText("Search text");
    text.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetDefaultSelected(SelectionEvent e) {
            if (e.detail == SWT.CANCEL) {
              System.out.println("Search cancelled");
            } else {
              System.out.println("Searching for: " + text.getText() + "...");
            }
          }
        });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    if (image != null) image.dispose();
    display.dispose();
  }
Exemple #7
0
  /** Creates the "Example" widgets. */
  void createExampleWidgets() {

    /* Compute the widget style */
    int style = getDefaultStyle();
    if (topButton.getSelection()) style |= SWT.TOP;
    if (bottomButton.getSelection()) style |= SWT.BOTTOM;
    if (borderButton.getSelection()) style |= SWT.BORDER;

    /* Create the example widgets */
    tabFolder1 = new TabFolder(tabFolderGroup, style);
    for (int i = 0; i < TabItems1.length; i++) {
      TabItem item = new TabItem(tabFolder1, SWT.NONE);
      item.setText(TabItems1[i]);
      item.setToolTipText(ControlExample.getResourceString("Tooltip", new String[] {TabItems1[i]}));
      Text content = new Text(tabFolder1, SWT.WRAP | SWT.MULTI);
      content.setText(ControlExample.getResourceString("TabItem_content") + ": " + i);
      item.setControl(content);
    }
  }
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout(2, false));

    final Text text = new Text(shell, SWT.BORDER);
    text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
    Button go = new Button(shell, SWT.PUSH);
    go.setText("Go");
    OleFrame oleFrame = new OleFrame(shell, SWT.NONE);
    oleFrame.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
    OleControlSite controlSite;
    OleAutomation automation;
    try {
      controlSite = new OleControlSite(oleFrame, SWT.NONE, "Shell.Explorer");
      automation = new OleAutomation(controlSite);
      controlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE);
    } catch (SWTException ex) {
      System.out.println("Unable to open activeX control");
      display.dispose();
      return;
    }

    final OleAutomation auto = automation;
    go.addListener(
        SWT.Selection,
        new Listener() {
          public void handleEvent(Event e) {
            String url = text.getText();
            int[] rgdispid = auto.getIDsOfNames(new String[] {"Navigate", "URL"});
            int dispIdMember = rgdispid[0];
            Variant[] rgvarg = new Variant[1];
            rgvarg[0] = new Variant(url);
            int[] rgdispidNamedArgs = new int[1];
            rgdispidNamedArgs[0] = rgdispid[1];
            auto.invoke(dispIdMember, rgvarg, rgdispidNamedArgs);
          }
        });

    // Read PostData whenever we navigate to a site that uses it
    int BeforeNavigate2 = 0xfa;
    controlSite.addEventListener(
        BeforeNavigate2,
        new OleListener() {
          public void handleEvent(OleEvent event) {
            Variant url = event.arguments[1];
            Variant postData = event.arguments[4];
            if (postData != null) {
              System.out.println(
                  "PostData = " + readSafeArray(postData) + ", URL = " + url.getString());
            }
          }
        });

    // Navigate to this web site which uses post data to fill in the text field
    // and put the string "hello world" into the text box
    text.setText("file://" + Snippet186.class.getResource("Snippet186.html").getFile());
    int[] rgdispid = automation.getIDsOfNames(new String[] {"Navigate", "URL", "PostData"});
    int dispIdMember = rgdispid[0];
    Variant[] rgvarg = new Variant[2];
    rgvarg[0] = new Variant(text.getText());
    rgvarg[1] = writeSafeArray("hello world");
    int[] rgdispidNamedArgs = new int[2];
    rgdispidNamedArgs[0] = rgdispid[1];
    rgdispidNamedArgs[1] = rgdispid[2];
    automation.invoke(dispIdMember, rgvarg, rgdispidNamedArgs);

    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
    protected authDialog(
        AESemaphore _sem,
        Display display,
        String realm,
        boolean is_tracker,
        String target,
        String details) {
      sem = _sem;

      if (display.isDisposed()) {

        sem.releaseForever();

        return;
      }

      final String ignore_key = "IgnoreAuth:" + realm + ":" + target + ":" + details;

      if (RememberedDecisionsManager.getRememberedDecision(ignore_key) == 1) {

        Debug.out(
            "Authentication for "
                + realm
                + "/"
                + target
                + "/"
                + details
                + " ignored as told not to ask again");

        sem.releaseForever();

        return;
      }

      shell = ShellFactory.createMainShell(SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);

      Utils.setShellIcon(shell);
      Messages.setLanguageText(shell, "authenticator.title");

      GridLayout layout = new GridLayout();
      layout.numColumns = 3;

      shell.setLayout(layout);

      GridData gridData;

      // realm

      Label realm_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(realm_label, "authenticator.realm");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      realm_label.setLayoutData(gridData);

      Label realm_value = new Label(shell, SWT.NULL);
      realm_value.setText(realm.replaceAll("&", "&&"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      realm_value.setLayoutData(gridData);

      // target

      Label target_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(
          target_label, is_tracker ? "authenticator.tracker" : "authenticator.location");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      target_label.setLayoutData(gridData);

      Label target_value = new Label(shell, SWT.NULL);
      target_value.setText(target.replaceAll("&", "&&"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      target_value.setLayoutData(gridData);

      if (details != null) {

        Label details_label = new Label(shell, SWT.NULL);
        Messages.setLanguageText(
            details_label, is_tracker ? "authenticator.torrent" : "authenticator.details");
        gridData = new GridData(GridData.FILL_BOTH);
        gridData.horizontalSpan = 1;
        details_label.setLayoutData(gridData);

        Label details_value = new Label(shell, SWT.NULL);
        details_value.setText(details.replaceAll("&", "&&"));
        gridData = new GridData(GridData.FILL_BOTH);
        gridData.horizontalSpan = 2;
        details_value.setLayoutData(gridData);
      }
      // user

      Label user_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(user_label, "authenticator.user");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      user_label.setLayoutData(gridData);

      final Text user_value = new Text(shell, SWT.BORDER);
      user_value.setText("");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      user_value.setLayoutData(gridData);

      user_value.addListener(
          SWT.Modify,
          new Listener() {
            public void handleEvent(Event event) {
              username = user_value.getText();
            }
          });

      // password

      Label password_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(password_label, "authenticator.password");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      password_label.setLayoutData(gridData);

      final Text password_value = new Text(shell, SWT.BORDER);
      password_value.setEchoChar('*');
      password_value.setText("");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      password_value.setLayoutData(gridData);

      password_value.addListener(
          SWT.Modify,
          new Listener() {
            public void handleEvent(Event event) {
              password = password_value.getText();
            }
          });

      // persist

      Label blank_label = new Label(shell, SWT.NULL);
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      blank_label.setLayoutData(gridData);

      final Button checkBox = new Button(shell, SWT.CHECK);
      checkBox.setText(MessageText.getString("authenticator.savepassword"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      checkBox.setLayoutData(gridData);
      checkBox.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              persist = checkBox.getSelection();
            }
          });

      final Button dontAsk = new Button(shell, SWT.CHECK);
      dontAsk.setText(MessageText.getString("general.dont.ask.again"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      dontAsk.setLayoutData(gridData);
      dontAsk.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              RememberedDecisionsManager.setRemembered(ignore_key, dontAsk.getSelection() ? 1 : 0);
            }
          });

      // line

      Label labelSeparator = new Label(shell, SWT.SEPARATOR | SWT.HORIZONTAL);
      gridData = new GridData(GridData.FILL_HORIZONTAL);
      gridData.horizontalSpan = 3;
      labelSeparator.setLayoutData(gridData);

      // buttons

      new Label(shell, SWT.NULL);

      Button bOk = new Button(shell, SWT.PUSH);
      Messages.setLanguageText(bOk, "Button.ok");
      gridData =
          new GridData(
              GridData.FILL_HORIZONTAL
                  | GridData.HORIZONTAL_ALIGN_END
                  | GridData.HORIZONTAL_ALIGN_FILL);
      gridData.grabExcessHorizontalSpace = true;
      gridData.widthHint = 70;
      bOk.setLayoutData(gridData);
      bOk.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              close(true);
            }
          });

      Button bCancel = new Button(shell, SWT.PUSH);
      Messages.setLanguageText(bCancel, "Button.cancel");
      gridData = new GridData(GridData.HORIZONTAL_ALIGN_END);
      gridData.grabExcessHorizontalSpace = false;
      gridData.widthHint = 70;
      bCancel.setLayoutData(gridData);
      bCancel.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              close(false);
            }
          });

      shell.setDefaultButton(bOk);

      shell.addListener(
          SWT.Traverse,
          new Listener() {
            public void handleEvent(Event e) {
              if (e.character == SWT.ESC) {
                close(false);
              }
            }
          });

      shell.pack();

      Utils.centreWindow(shell);

      shell.open();
    }
Exemple #10
0
  /**
   * Constructor to create an editor to update/create an ontology entry
   *
   * @param display - points back to the display
   * @param oureditOntEntry - the entry being edited
   * @param ontParent - the edited item's parent in the hierarchy
   * @param newItem - true if this is a new item
   */
  public EditOntEntry(
      Display display, OntEntry oureditOntEntry, OntEntry ontParent, boolean newItem) {
    super();
    shell = new Shell(display, SWT.DIALOG_TRIM | SWT.PRIMARY_MODAL);
    shell.setText("OntEntry Information");
    GridLayout gridLayout = new GridLayout();
    gridLayout.numColumns = 3;
    gridLayout.marginHeight = 5;
    gridLayout.makeColumnsEqualWidth = true;
    shell.setLayout(gridLayout);

    ourOntEntry = oureditOntEntry;
    ourParent = ontParent;

    if (newItem) {
      ourOntEntry.setName("");
      ourOntEntry.setImportance(Importance.MODERATE);
    }

    new Label(shell, SWT.NONE).setText("Name:");

    nameField = new Text(shell, SWT.SINGLE | SWT.BORDER | SWT.H_SCROLL);
    nameField.setText(ourOntEntry.getName());
    GridData gridData =
        new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);
    DisplayUtilities.setTextDimensions(nameField, gridData, 75);
    gridData.horizontalSpan = 2;
    nameField.setLayoutData(gridData);

    new Label(shell, SWT.NONE).setText("Description:");

    descArea = new Text(shell, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.V_SCROLL);
    descArea.setText(ourOntEntry.getDescription());
    gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
    DisplayUtilities.setTextDimensions(descArea, gridData, 75, 5);
    gridData.horizontalSpan = 2;
    gridData.heightHint = descArea.getLineHeight() * 3;
    descArea.setLayoutData(gridData);

    new Label(shell, SWT.NONE).setText("Importance:");
    importanceBox = new Combo(shell, SWT.DROP_DOWN | SWT.READ_ONLY);
    Enumeration impEnum = Importance.elements();
    int l = 0;
    Importance itype;
    while (impEnum.hasMoreElements()) {
      itype = (Importance) impEnum.nextElement();
      importanceBox.add(itype.toString());
      if (itype.toString().compareTo(ourOntEntry.getImportance().toString()) == 0) {
        importanceBox.select(l);
      }
      l++;
    }
    // Error checking: if no such selection is valid, set it to select index 0
    if (importanceBox.getSelectionIndex() == -1) {
      importanceBox.select(0);
    }
    importanceBox.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));

    new Label(shell, SWT.NONE).setText(" ");
    new Label(shell, SWT.NONE).setText(" ");

    addButton = new Button(shell, SWT.PUSH);
    gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);
    addButton.setLayoutData(gridData);
    if (newItem) {
      addButton.setText("Add");
      addButton.addSelectionListener(
          new SelectionAdapter() {

            public void widgetSelected(SelectionEvent event) {
              canceled = false;
              if (!nameField.getText().trim().equals("")) {
                ConsistencyChecker checker =
                    new ConsistencyChecker(ourOntEntry.getID(), nameField.getText(), "OntEntries");

                if (ourOntEntry.getName() == nameField.getText() || checker.check()) {
                  ourParent.addChild(ourOntEntry);
                  ourOntEntry.setLevel(ourParent.getLevel() + 1);
                  ourOntEntry.setName(nameField.getText());
                  ourOntEntry.setDescription(descArea.getText());
                  ourOntEntry.setImportance(
                      Importance.fromString(
                          importanceBox.getItem(importanceBox.getSelectionIndex())));

                  // comment before this made no sense...
                  ourOntEntry.setID(ourOntEntry.toDatabase(ourParent.getID()));
                  System.out.println("Name of added item = " + ourOntEntry.getName());

                  shell.close();
                  shell.dispose();
                }
              } else {
                MessageBox mbox = new MessageBox(shell, SWT.ICON_ERROR);
                mbox.setMessage("Need to provide the OntEntry name");
                mbox.open();
              }
            }
          });

    } else {
      addButton.setText("Save");
      addButton.addSelectionListener(
          new SelectionAdapter() {

            public void widgetSelected(SelectionEvent event) {
              canceled = false;

              ConsistencyChecker checker =
                  new ConsistencyChecker(ourOntEntry.getID(), nameField.getText(), "OntEntries");

              if (ourOntEntry.getName() == nameField.getText() || checker.check()) {
                ourOntEntry.setName(nameField.getText());
                ourOntEntry.setDescription(descArea.getText());
                ourOntEntry.setImportance(
                    Importance.fromString(
                        importanceBox.getItem(importanceBox.getSelectionIndex())));
                // since this is a save, not an add, the type and parent are ignored
                ourOntEntry.setID(ourOntEntry.toDatabase(0));

                //			RationaleDB db = RationaleDB.getHandle();
                //			db.addOntEntry(ourOntEntry);

                shell.close();
                shell.dispose();
              }
            }
          });
    }

    cancelButton = new Button(shell, SWT.PUSH);
    cancelButton.setText("Cancel");
    gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);
    cancelButton.setLayoutData(gridData);
    cancelButton.addSelectionListener(
        new SelectionAdapter() {

          public void widgetSelected(SelectionEvent event) {
            canceled = true;
            shell.close();
            shell.dispose();
          }
        });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
  }
  public static void main(String[] args) {
    final Display display = new Display();
    final Clipboard clipboard = new Clipboard(display);
    final Shell shell = new Shell(display, SWT.SHELL_TRIM);
    shell.setLayout(new GridLayout());
    shell.setText("Clipboard ImageTransfer");

    final Button imageButton = new Button(shell, SWT.NONE);
    GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
    gd.minimumHeight = 400;
    gd.minimumWidth = 600;
    imageButton.setLayoutData(gd);

    final Text imageText = new Text(shell, SWT.BORDER);
    imageText.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));

    Composite buttons = new Composite(shell, SWT.NONE);
    buttons.setLayout(new GridLayout(4, true));
    Button button = new Button(buttons, SWT.PUSH);
    button.setText("Open");
    button.addListener(
        SWT.Selection,
        event -> {
          FileDialog dialog = new FileDialog(shell, SWT.OPEN);
          dialog.setText("Open an image file or cancel");
          String string = dialog.open();
          if (string != null) {
            imageButton.setText("");
            Image image = imageButton.getImage();
            if (image != null) image.dispose();
            image = new Image(display, string);
            imageButton.setImage(image);
            imageText.setText(string);
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Copy");
    button.addListener(
        SWT.Selection,
        event -> {
          Image image = imageButton.getImage();
          if (image != null) {
            ImageTransfer imageTransfer = ImageTransfer.getInstance();
            TextTransfer textTransfer = TextTransfer.getInstance();
            clipboard.setContents(
                new Object[] {image.getImageData(), imageText.getText()},
                new Transfer[] {imageTransfer, textTransfer});
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Paste");
    button.addListener(
        SWT.Selection,
        event -> {
          ImageData imageData = (ImageData) clipboard.getContents(ImageTransfer.getInstance());
          if (imageData != null) {
            imageButton.setText("");
            Image image = imageButton.getImage();
            if (image != null) image.dispose();
            image = new Image(display, imageData);
            imageButton.setImage(image);
          } else {
            imageButton.setText("No image");
            imageButton.setImage(null);
          }
          String text = (String) clipboard.getContents(TextTransfer.getInstance());
          if (text != null) {
            imageText.setText(text);
          } else {
            imageText.setText("");
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Clear");
    button.addListener(
        SWT.Selection,
        event -> {
          imageButton.setText("");
          Image image = imageButton.getImage();
          if (image != null) image.dispose();
          imageButton.setImage(null);
          imageText.setText("");
        });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
    protected authDialog(
        AESemaphore _sem, Display display, String realm, String tracker, String torrent_name) {
      sem = _sem;

      if (display.isDisposed()) {

        sem.release();

        return;
      }

      shell = new Shell(display, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);

      Utils.setShellIcon(shell);
      Messages.setLanguageText(shell, "authenticator.title");

      GridLayout layout = new GridLayout();
      layout.numColumns = 3;

      shell.setLayout(layout);

      GridData gridData;

      // realm

      Label realm_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(realm_label, "authenticator.realm");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      realm_label.setLayoutData(gridData);

      Label realm_value = new Label(shell, SWT.NULL);
      realm_value.setText(realm.replaceAll("&", "&&"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      realm_value.setLayoutData(gridData);

      // tracker

      Label tracker_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(tracker_label, "authenticator.tracker");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      tracker_label.setLayoutData(gridData);

      Label tracker_value = new Label(shell, SWT.NULL);
      tracker_value.setText(tracker.replaceAll("&", "&&"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      tracker_value.setLayoutData(gridData);

      if (torrent_name != null) {

        Label torrent_label = new Label(shell, SWT.NULL);
        Messages.setLanguageText(torrent_label, "authenticator.torrent");
        gridData = new GridData(GridData.FILL_BOTH);
        gridData.horizontalSpan = 1;
        torrent_label.setLayoutData(gridData);

        Label torrent_value = new Label(shell, SWT.NULL);
        torrent_value.setText(torrent_name.replaceAll("&", "&&"));
        gridData = new GridData(GridData.FILL_BOTH);
        gridData.horizontalSpan = 2;
        torrent_value.setLayoutData(gridData);
      }
      // user

      Label user_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(user_label, "authenticator.user");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      user_label.setLayoutData(gridData);

      final Text user_value = new Text(shell, SWT.BORDER);
      user_value.setText("");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      user_value.setLayoutData(gridData);

      user_value.addListener(
          SWT.Modify,
          new Listener() {
            public void handleEvent(Event event) {
              username = user_value.getText();
            }
          });

      // password

      Label password_label = new Label(shell, SWT.NULL);
      Messages.setLanguageText(password_label, "authenticator.password");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      password_label.setLayoutData(gridData);

      final Text password_value = new Text(shell, SWT.BORDER);
      password_value.setEchoChar('*');
      password_value.setText("");
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      password_value.setLayoutData(gridData);

      password_value.addListener(
          SWT.Modify,
          new Listener() {
            public void handleEvent(Event event) {
              password = password_value.getText();
            }
          });

      // persist

      Label blank_label = new Label(shell, SWT.NULL);
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 1;
      blank_label.setLayoutData(gridData);

      final Button checkBox = new Button(shell, SWT.CHECK);
      checkBox.setText(MessageText.getString("authenticator.savepassword"));
      gridData = new GridData(GridData.FILL_BOTH);
      gridData.horizontalSpan = 2;
      checkBox.setLayoutData(gridData);
      checkBox.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              persist = checkBox.getSelection();
            }
          });

      // line

      Label labelSeparator = new Label(shell, SWT.SEPARATOR | SWT.HORIZONTAL);
      gridData = new GridData(GridData.FILL_HORIZONTAL);
      gridData.horizontalSpan = 3;
      labelSeparator.setLayoutData(gridData);

      // buttons

      new Label(shell, SWT.NULL);

      Button bOk = new Button(shell, SWT.PUSH);
      Messages.setLanguageText(bOk, "Button.ok");
      gridData =
          new GridData(
              GridData.FILL_HORIZONTAL
                  | GridData.HORIZONTAL_ALIGN_END
                  | GridData.HORIZONTAL_ALIGN_FILL);
      gridData.grabExcessHorizontalSpace = true;
      gridData.widthHint = 70;
      bOk.setLayoutData(gridData);
      bOk.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              close(true);
            }
          });

      Button bCancel = new Button(shell, SWT.PUSH);
      Messages.setLanguageText(bCancel, "Button.cancel");
      gridData = new GridData(GridData.HORIZONTAL_ALIGN_END);
      gridData.grabExcessHorizontalSpace = false;
      gridData.widthHint = 70;
      bCancel.setLayoutData(gridData);
      bCancel.addListener(
          SWT.Selection,
          new Listener() {
            public void handleEvent(Event e) {
              close(false);
            }
          });

      shell.setDefaultButton(bOk);

      shell.addListener(
          SWT.Traverse,
          new Listener() {
            public void handleEvent(Event e) {
              if (e.character == SWT.ESC) {
                close(false);
              }
            }
          });

      shell.pack();

      Utils.centreWindow(shell);

      shell.open();

      shell.forceActive();
    }