Method removeRows

kdevplatform/project/projectmodel.cpp:220–260

}

void ProjectBaseItem::removeRows(int row, int count)
{
    if (!count) {
        return;
    }

    Q_D(ProjectBaseItem);
    Q_ASSERT(row >= 0 && row + count <= d->children.size());

    if( model() ) {
        model()->beginRemoveRows(index(), row, row + count - 1);
    }

    //NOTE: we unset parent, row and model manually to speed up the deletion
    if (row == 0 && count == d->children.size()) {
        // optimize if we want to delete all
        for (ProjectBaseItem* item : std::as_const(d->children)) {
            item->d_func()->parent = nullptr;
            item->d_func()->row = -1;
            item->setModel( nullptr );
            delete item;
        }
        d->children.clear();
    } else {
        for (int i = row; i < count; ++i) {
            ProjectBaseItem* item = d->children.at(i);
            item->d_func()->parent = nullptr;
            item->d_func()->row = -1;
            item->setModel( nullptr );
            delete d->children.takeAt( row );
        }
        for(int i = row; i < d->children.size(); ++i) {
            d->children.at(i)->d_func()->row--;
            Q_ASSERT(child(i)->d_func()->row==i);
        }
    }

    if( model() ) {
        model()->endRemoveRows();
    }
}

QModelIndex ProjectBaseItem::index() const
{