Method Move

src/BaseQueue.cpp:195–252

}

bool CBaseQueue::Move(CBaseQueueItem *item, bool up)
{
    bool result = (item != nullptr);
    if (result)
    {
        if (up)
        {
            CBaseQueueItem *prev = item->m_Prev;
            result = (prev != nullptr);
            if (result)
            {
                if (prev == m_Items)
                {
                    prev->m_Prev = item;
                    prev->m_Next = item->m_Next;
                    m_Items = item;
                    item->m_Prev = nullptr;
                    item->m_Next = prev;
                }
                else
                {
                    CBaseQueueItem *prevprev = prev->m_Prev;
                    prev->m_Prev = item;
                    prev->m_Next = item->m_Next;
                    prevprev->m_Next = item;
                    item->m_Prev = prevprev;
                    item->m_Next = prev;
                }
            }
        }
        else
        {
            CBaseQueueItem *next = item->m_Next;
            result = (next != nullptr);
            if (result)
            {
                if (item == m_Items)
                {
                    item->m_Next = next->m_Next;
                    item->m_Prev = next;
                    m_Items = item;
                    m_Items->m_Prev = nullptr;
                    m_Items->m_Next = item;
                }
                else
                {
                    CBaseQueueItem *prev = item->m_Prev;
                    prev->m_Next = next;
                    item->m_Next = next->m_Next;
                    item->m_Prev = next;
                    next->m_Prev = prev;
                    next->m_Next = item;
                }
            }
        }
    }
    return result;
}