How to use

findHandle

method

in

org.jhotdraw.draw.DrawingView

/**
 * Hook method which can be overriden by subclasses to provide
 * specialised behaviour in the event of a multi-click.
 */
protected void handleMultiClick(MouseEvent evt) {
  if (DEBUG) {
    System.out.println("DelegationSelectionTool.handleMultiClick " + evt);
  }
  DrawingView v = getView();
  Point pos = new Point(evt.getX(), evt.getY());
  Handle handle = v.findHandle(pos);
  if (handle == null) {
    v.setHandleDetailLevel(v.getHandleDetailLevel() + 1);
  }
}

  @Override
  public String getToolTipText(DrawingView view, MouseEvent evt) {
    Handle handle = view.findHandle(evt.getPoint());
    if (handle != null) {
      return handle.getToolTipText(evt.getPoint());
    }
    Figure figure = view.findFigure(evt.getPoint());
    if (figure != null) {
      return figure.getToolTipText(viewToDrawing(evt.getPoint()));
    }
    return null;
  }
}

  protected boolean maybeSwitchTool(final MouseEvent event) {
    if (activeTool != null && activeTool.isConstructing()) return false;
    anchor = new Point(event.getX(), event.getY());
    JHotDrawTool tool = creationTool;
    final DrawingView view = getView();
    if (view != null && view.isEnabled()) {
      if (view.findHandle(anchor) != null ||
        (view.findFigure(anchor) != null && view.findFigure(anchor)
          .isSelectable()))
      {
        tool = selectionTool;
      }
    }

    if (activeTool != tool) {
      if (activeTool != null) {
        activeTool.deactivate(getEditor());
      }
      if (tool != null) {
        tool.activate(getEditor());
        if (!isActive()) {
          tool.deactivate(getEditor());
        }
      }
      activeTool = tool;
      return true;
    }
    return false;
  }
}

final DrawingView view = getView();
if (view != null && view.isEnabled()) {
  if (view.findHandle(anchor) != null ||
    (view.findFigure(anchor) != null && view.findFigure(anchor)
      .isSelectable()))

public void updateCursor(DrawingView view, Point p) {
  if (view.isEnabled()) {
    Handle handle = view.findHandle(p);
    if (handle != null) {
      view.setCursor(handle.getCursor());
    } else {
      Figure figure = view.findFigure(p);
      Point2D.Double point = view.viewToDrawing(p);
      Drawing drawing = view.getDrawing();
      while (figure != null && !figure.isSelectable()) {
        figure = drawing.findFigureBehind(point, figure);
      }
      if (figure != null) {
        view.setCursor(figure.getCursor(view.viewToDrawing(p)));
      } else {
        view.setCursor(Cursor.getDefaultCursor());
      }
    }
  } else {
    view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
  }
}

Handle handle = v.findHandle(pos);
if (handle != null) {
  if (DEBUG) {

super.mousePressed(evt);
DrawingView view = getView();
Handle handle = view.findHandle(anchor);
Tool newTracker = null;
if (handle != null) {