b

public void MouseReleased(MouseEvent e) {
        Point position = e.getPoint();
        ((GraphDocumentView) documentView).transformationToUserSpace(position);
        if (e.getButton() == MouseEvent.BUTTON1) {
            Decision novi = new Decision(new Point2D.Double(
                    position.getX() - 50, position.getY() - 50), new Dimension(
                    100, 100));
            if (allowElement(novi)) {
                setCursorX();
                getDocumentView().getCommandManager()
                        .executeCommand(
                                new AddElementCommand(novi,
                                        (GraphDiagram) getDocumentView()
                                                .getDocument()));
            }
        }
    }