Exemplos de QGraphicsLayoutItem::ownedByLayout em C++ (Cpp)

Exemplo n.º 1

Arquivo: qgraphicsgridlayout.cpp Projeto: NikhilNJ/screenplay-dx

/*!
    Destroys the QGraphicsGridLayout object.
*/
QGraphicsGridLayout::~QGraphicsGridLayout()
{
    for (int i = count() - 1; i >= 0; --i) {
        QGraphicsLayoutItem *item = itemAt(i);
        // The following lines can be removed, but this removes the item
        // from the layout more efficiently than the implementation of
        // ~QGraphicsLayoutItem.
        removeAt(i);
        if (item) {
            item->setParentLayoutItem(0);
            if (item->ownedByLayout())
                delete item;
        }
    }
}

Exemplo n.º 2

Arquivo: qgraphicsanchorlayout.cpp Projeto: wpbest/copperspice

/*!
    Destroys the QGraphicsAnchorLayout object.
*/
QGraphicsAnchorLayout::~QGraphicsAnchorLayout()
{
    Q_D(QGraphicsAnchorLayout);

    for (int i = count() - 1; i >= 0; --i) {
        QGraphicsLayoutItem *item = d->items.at(i);
        removeAt(i);
        if (item) {
            if (item->ownedByLayout())
                delete item;
        }
    }

    d->removeCenterConstraints(this, QGraphicsAnchorLayoutPrivate::Horizontal);
    d->removeCenterConstraints(this, QGraphicsAnchorLayoutPrivate::Vertical);
    d->deleteLayoutEdges();

    Q_ASSERT(d->itemCenterConstraints[0].isEmpty());
    Q_ASSERT(d->itemCenterConstraints[1].isEmpty());
    Q_ASSERT(d->items.isEmpty());
    Q_ASSERT(d->m_vertexList.isEmpty());
}