void BorderChangeListener::propertyChanged(QtProperty * property)
{
    if (!drawer)
        return;

    if (!command)
        command = new BorderChangeCommand(drawer);

    QtIntPropertyManager * integerManager = qobject_cast<QtIntPropertyManager*>(property->propertyManager());
    if (integerManager)
    {
        command->setPropertyValue(property->propertyName(), integerManager->value(property));
        return;
    }
    QtDoublePropertyManager * doubleManager = qobject_cast<QtDoublePropertyManager*>(property->propertyManager());
    if (doubleManager)
    {
        command->setPropertyValue(property->propertyName(), doubleManager->value(property));
        return;
    }
    QtVariantPropertyManager * variantManager = qobject_cast<QtVariantPropertyManager*>(property->propertyManager());
    if (variantManager)
    {
        command->setPropertyValue(property->propertyName(), variantManager->value(property));
        return;
    }
}
void QtDoubleSpinBoxFactory::slotDecimalsChanged(QtProperty *property, int prec)
{
    if (!m_createdEditors.contains(property))
        return;

    QtDoublePropertyManager *manager = this->propertyManager(property);
    if (!manager)
        return;

    QList<QDoubleSpinBox *> editors = m_createdEditors[property];
    QListIterator<QDoubleSpinBox *> itEditor(editors);
    while (itEditor.hasNext()) {
        QDoubleSpinBox *editor = itEditor.next();
        editor->blockSignals(true);
        editor->setDecimals(prec);
        editor->setValue(manager->value(property));
        editor->blockSignals(false);
    }
}