QDebug operator <<(QDebug debug, const QQmlChangeSet &set)
{
debug.nospace() << "QQmlChangeSet(";
foreach (const QQmlChangeSet::Change &remove, set.removes()) debug << remove;
foreach (const QQmlChangeSet::Change &insert, set.inserts()) debug << insert;
foreach (const QQmlChangeSet::Change &change, set.changes()) debug << change;
return debug.nospace() << ')';
}
void itemAppended() {
Q_Q(QQmlObjectModel);
QQmlObjectModelAttached *attached = QQmlObjectModelAttached::properties(children.last().item);
attached->setIndex(children.count()-1);
QQmlChangeSet changeSet;
changeSet.insert(children.count() - 1, 1);
emit q->modelUpdated(changeSet, false);
emit q->countChanged();
}
void Quick3DNodeInstantiatorPrivate::_q_modelUpdated(const QQmlChangeSet &changeSet, bool reset)
{
Q_Q(Quick3DNodeInstantiator);
if (!m_componentComplete || m_effectiveReset)
return;
if (reset) {
regenerate();
if (changeSet.difference() != 0)
emit q->countChanged();
return;
}
int difference = 0;
QHash<int, QVector<QPointer<QObject> > > moved;
const auto removes = changeSet.removes();
for (const QQmlChangeSet::Change &remove : removes) {
int index = qMin(remove.index, m_objects.count());
int count = qMin(remove.index + remove.count, m_objects.count()) - index;
if (remove.isMove()) {
moved.insert(remove.moveId, m_objects.mid(index, count));
m_objects.erase(
m_objects.begin() + index,
m_objects.begin() + index + count);
} else {
while (count--) {
QObject *obj = m_objects.at(index);
m_objects.remove(index);
emit q->objectRemoved(index, obj);
if (obj)
m_instanceModel->release(obj);
}
}
difference -= remove.count;
}
const auto inserts = changeSet.inserts();
for (const QQmlChangeSet::Change &insert : inserts) {
int index = qMin(insert.index, m_objects.count());
if (insert.isMove()) {
QVector<QPointer<QObject> > movedObjects = moved.value(insert.moveId);
m_objects = m_objects.mid(0, index) + movedObjects + m_objects.mid(index);
} else for (int i = 0; i < insert.count; ++i) {
int modelIndex = index + i;
QObject *obj = m_instanceModel->object(modelIndex, m_async ?
QQmlIncubator::Asynchronous : QQmlIncubator::AsynchronousIfNested);
if (obj)
_q_createdItem(modelIndex, obj);
}
difference += insert.count;
}
if (difference != 0)
emit q->countChanged();
}
QDebug operator <<(QDebug debug, const QQmlChangeSet &set)
{
debug.nospace() << "QQmlChangeSet(";
const QVector<QQmlChangeSet::Change> &removes = set.removes();
for (const QQmlChangeSet::Change &remove : removes)
debug << remove;
const QVector<QQmlChangeSet::Change> &inserts = set.inserts();
for (const QQmlChangeSet::Change &insert : inserts)
debug << insert;
const QVector<QQmlChangeSet::Change> &changes = set.changes();
for (const QQmlChangeSet::Change &change : changes)
debug << change;
return debug.nospace() << ')';
}
