void QmlAnchorBindingProxy::setRightTarget(const QVariant &target)
{
    QmlItemNode newTarget(target.value<ModelNode>());

    if (newTarget == m_rightTarget)
        return;

    RewriterTransaction transaction = m_fxItemNode.modelNode().view()->beginRewriterTransaction();

    m_rightTarget = newTarget;
    calcRightMargin();

    emit rightTargetChanged();
}
void QmlAnchorBindingProxy::setRightAnchor(bool anchor)
{
    if (!m_qmlItemNode.hasNodeParent())
        return;

    if (rightAnchored() == anchor)
        return;

    RewriterTransaction transaction = m_qmlItemNode.modelNode().view()->beginRewriterTransaction(QByteArrayLiteral("QmlAnchorBindingProxy::setRightAnchor"));

    if (!anchor) {
        removeRightAnchor();
    } else {
        calcRightMargin();
        if (leftAnchored())
            backupPropertyAndRemove(modelNode(), "width");
    }
    emit rightAnchorChanged();
    if (hasAnchors() != anchor)
        emit anchorsChanged();
}