Examples of org.eclipse.swt.widgets.Tree.addSelectionListener()

org.eclipse.swt.widgets.Tree.addSelectionListener()
Adds the listener to the collection of listeners who will be notified when the user changes the receiver's selection, by sending it one of the messages defined in the SelectionListener interface.
When widgetSelected is called, the item field of the event object is valid. If the receiver has the SWT.CHECK style and the check selection changes, the event object detail field contains the value SWT.CHECK. widgetDefaultSelected is typically called when an item is double-clicked. The item field of the event object is valid for default selection, but the detail field is not used.
@param listener the listener which should be notified when the user changes the receiver's selection @exception IllegalArgumentException
- ERROR_NULL_ARGUMENT - if the listener is null
@exception SWTException
- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
@see SelectionListener @see #removeSelectionListener @see SelectionEvent

    composite_2.setLayoutData(fd_composite_2);


    final Tree tree = new Tree(composite_2, SWT.BORDER | SWT.NO_FOCUS
        | SWT.NONE);
    tree.setBounds(0, 36, 215, 674);
    tree.addSelectionListener(new SelectionAdapter() {
      @Override
      public void widgetSelected(SelectionEvent e) {
        TreeItem[] selection = tree.getSelection();
        // Handler for Switches tree item
        if (selection.length != 0) {

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  }
  
  // TODO 联系人列表
  private void createRosterPanel(SashForm form) {
    Tree tree = new Tree(form,SWT.BORDER | SWT.VIRTUAL);
    tree.addSelectionListener(new SelectionAdapter() {


      @Override
      public void widgetSelected(SelectionEvent e) {
        //TODO 
        TreeItem selectedItem = (TreeItem)e.item;

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      public void keyReleased(KeyEvent e) {
        // do nothing
      }
    });


    tree.addSelectionListener(new SelectionListener() {
      public void widgetSelected(SelectionEvent e) {
        // do nothing
      }


      public void widgetDefaultSelected(SelectionEvent e) {

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      public void keyReleased(KeyEvent e) {
        // do nothing
      }
    });


    tree.addSelectionListener(new SelectionListener() {
      public void widgetSelected(SelectionEvent e) {
        // do nothing
      }


      public void widgetDefaultSelected(SelectionEvent e) {

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      }
        }


        if (fDoubleClickSelects) {
            Tree tree = fViewer.getTree();
            tree.addSelectionListener(new SelectionAdapter() {
                @Override
        public void widgetDefaultSelected(SelectionEvent e) {
                    updateOKStatus();
                    if (fCurrStatus.isOK()) {
            access$superButtonPressed(IDialogConstants.OK_ID);

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