Creating a custom QGraphicsLayout - not quite understanding existing subclasses...

[Asperamanca]

I want to create a custom subclass of QGraphicsLayout. In order to do so properly, I have taken a closer look at the most similar Qt-delivered implementation: QGraphicsLinearLayout.

What confuses me: For the function removeAt, the documentation on how it is supposed to behave seems to deviate from the code. Am I seeing this wrong? (Take a look at the 'delete' line towards the end of the method)

/*!
    Removes the item at \a index without destroying it. Ownership of the item
    is transferred to the caller.

    \sa removeItem(), insertItem()
*/
void QGraphicsLinearLayout::removeAt(int index)
{
    Q_D(QGraphicsLinearLayout);
    if (index < 0 || index >= d->engine.itemCount()) {
        qWarning("QGraphicsLinearLayout::removeAt: invalid index %d", index);
        return;
    }
    if (QGridLayoutItem *gridItem = d->engine.itemAt(index)) {
        if (QGraphicsLayoutItem *layoutItem = gridItem->layoutItem())
            layoutItem->setParentLayoutItem(0);
        d->removeGridItem(gridItem);
        delete gridItem;
        invalidate();
    }
}

[jsulm]

@asperamanca said in Creating a custom QGraphicsLayout - not quite understanding existing subclasses...:

seems to deviate from the code

In what way?

[Asperamanca]

I misread the code: Not the QGraphicsLayoutItem is destroyed, but a wrapper QGridLayoutItem class.