class LienzoCanvasMediators {

    public void setScaleAboutPoint(final boolean scaleAboutPoint) {
        mediators.getZoomMediator().setScaleAboutPoint(scaleAboutPoint);
    }

    @Inject public  LienzoCanvasMediators(final KeyEventHandler keyEventHandler,
                                 final ClientTranslationService translationService,
                                 final LienzoCanvasNotification notification,
                                 final EditorContextProvider editorContextProvider);
      LienzoCanvasMediators(final KeyEventHandler keyEventHandler,
                          final ClientTranslationService translationService,
                          final LienzoCanvasNotification notification,
                          final Function<LienzoBoundsPanel, PanelMediators> mediatorsBuilder);

}