How to use org.jhotdraw.draw.tool

/** Creates a new instance. */
public SelectionTool() {
  tracker = getSelectAreaTracker();
  trackerHandler = new TrackerHandler();
  tracker.addToolListener(trackerHandler);
}

@Override
public void deactivate(DrawingEditor editor) {
  super.deactivate(editor);
  tracker.deactivate(editor);
}

@Override
public void activate(DrawingEditor editor) {
  super.activate(editor);
  clearHoverHandles();
}

protected void setTracker(Tool newTracker) {
  if (tracker != null) {
    tracker.deactivate(getEditor());
    tracker.removeToolListener(trackerHandler);
  }
  tracker = newTracker;
  if (tracker != null) {
    tracker.activate(getEditor());
    tracker.addToolListener(trackerHandler);
  }
}

@Override
public void deactivate(DrawingEditor editor) {
  endEdit();
  super.deactivate(editor);
}

@Override
public void activate(DrawingEditor editor) {
  super.activate(editor);
  tracker.activate(editor);
}

  @Override
  public void deactivate(DrawingEditor editor) {
    super.deactivate(editor);
    clearHoverHandles();
  }
}

@Override
public void deactivate(DrawingEditor editor) {
  endEdit();
  super.deactivate(editor);
}

/**
 * Method to get a {@code HandleTracker} which handles user interaction
 * for the specified handle.
 */
protected HandleTracker getHandleTracker(Handle handle) {
  if (handleTracker == null) {
    handleTracker = new DefaultHandleTracker();
  }
  handleTracker.setHandles(handle, getView().getCompatibleHandles(handle));
  return handleTracker;
}

/**
 * Method to get a {@code DragTracker} which handles user interaction
 * for dragging the specified figure.
 */
protected DragTracker getDragTracker(Figure f) {
  if (dragTracker == null) {
    dragTracker = new DefaultDragTracker();
  }
  dragTracker.setDraggedFigure(f);
  return dragTracker;
}

@Override
public void deactivate(DrawingEditor editor) {
  endEdit();
  super.deactivate(editor);
}
/**

@Override
public void deactivate(DrawingEditor editor) {
  endEdit();
  super.deactivate(editor);
}

@Override
public void mouseEntered(MouseEvent evt) {
  super.mouseEntered(evt);
  tracker.mouseEntered(evt);
}

@Override
public void mouseExited(MouseEvent evt) {
  super.mouseExited(evt);
  tracker.mouseExited(evt);
}

@Override
public void mousePressed(MouseEvent evt) {
  super.mousePressed(evt);
  clearRubberBand();
}

@Override
public void actionPerformed(ActionEvent event) {
  endEdit();
  fireToolDone();
}

@Override
public void actionPerformed(ActionEvent event) {
  endEdit();
  fireToolDone();
}

/**
 * This method allows subclasses to do perform additonal user interactions
 * after the new figure has been created.
 * The implementation of this class just invokes fireToolDone.
 */
protected void creationFinished(Figure createdFigure) {
  if (isToolDoneAfterCreation()) {
    fireToolDone();
  }
}

/**
 * Sets the selectBehindEnabled property.
 * This is a bound property.
 *
 * @param newValue The new value.
 */
public void setSelectBehindEnabled(boolean newValue) {
  boolean oldValue = isSelectBehindEnabled;
  isSelectBehindEnabled = newValue;
  firePropertyChange(SELECT_BEHIND_ENABLED_PROPERTY, oldValue, newValue);
}

@Override
      public void actionPerformed(ActionEvent aevt) {
        handlePopupMenu(evt);
        popupTimer = null;
      }
    });