};
width.value.connect(updateConstraint);
height.value.connect(updateConstraint);
position.point.connect(updateConstraint);
origin.point.connect(updateConstraint);
updateConstraint.onEmit();
return new Group(AxisLayout.vertical().offStretch()).add(
new Label("Move the sliders to play with the constraint"),
new Group(AxisLayout.horizontal()).add(position, origin),
sizeCtrl, group.setConstraint(AxisLayout.stretched()));
}