Method itemChange

src/domain/UBGraphicsItemDelegate.cpp:287–356

QVariant UBGraphicsItemDelegate::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)
{
    std::shared_ptr<UBGraphicsScene>ubScene = castUBGraphicsScene();
    switch (static_cast<int>(change))
    {
        case QGraphicsItem::ItemSelectedHasChanged :
        {
            if (ubScene) {
                if (value.toBool()) { //selected(true)
                    if (delegated()->data(UBGraphicsItemData::ItemIsHiddenOnDisplay).toBool())
                    {
                        showHide(false);
                    }
                    ubScene->setSelectedZLevel(delegated());
                } else {
                    ubScene->setOwnZlevel(delegated());
                    if (delegated()->data(UBGraphicsItemData::ItemIsHiddenOnDisplay).toBool())
                    {
                        showHide(true);
                    }
                    freeControls();
                }
            }
            break;
        }
        case QGraphicsItem::ItemVisibleHasChanged :
        {
            bool shownOnDisplay = mDelegated->data(UBGraphicsItemData::ItemLayerType).toInt() != UBItemLayerType::Control;
            showHide(shownOnDisplay);
            break;
        }
        case QGraphicsItem::ItemPositionHasChanged :
        case QGraphicsItem::ItemTransformHasChanged :
        case QGraphicsItem::ItemZValueHasChanged :
        {
            if (ubScene)
            {
                ubScene->setModified(true);
            }

            if (controlsExist())
            {
                mAntiScaleRatio = 1 / (UBApplication::boardController->systemScaleFactor() * UBApplication::boardController->currentZoom());
                positionHandles();
                break;
            }

            break;
        }
    }

#ifdef DEBUG_Z_LEVEL
    if (change == QGraphicsItem::ItemZValueHasChanged)
    {
        qreal newZ = qvariant_cast<double>(value);

        qDebug() << newZ;