/**
* {@inheritDoc}
*/
public void mousePressed(EditorMouseEvent event) {
CompositeElement parent = editor.getDiagram();
Node element = createElement();
element.setOrigin(parent.getMappedX(event.getX()), parent.getMappedY(
event.getY()));
AddElementCommand createCommand = new AddElementCommand(editor,
editor.getDiagram(), element);
editor.execute(createCommand);
}