private void showEventGraph(final AbstractCanvasHandlerEvent canvasHandlerEvent) {
doShow(canvasHandlerEvent.getCanvasHandler().getDiagram().getGraph());
}
private boolean checkEventContext(final AbstractCanvasHandlerEvent canvasHandlerEvent) {
final CanvasHandler _canvasHandler = canvasHandlerEvent.getCanvasHandler();
return canvasHandler != null && canvasHandler.equals(_canvasHandler);
}