128 lines
2.1 KiB
C++
128 lines
2.1 KiB
C++
/*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): none yet.
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
/** \file container/intern/CTR_List.cpp
|
|
* \ingroup ctr
|
|
*/
|
|
|
|
|
|
#include "CTR_List.h"
|
|
|
|
|
|
CTR_Link::CTR_Link() :
|
|
m_next(0),
|
|
m_prev(0)
|
|
{
|
|
}
|
|
|
|
CTR_Link::CTR_Link(CTR_Link *next, CTR_Link *prev) :
|
|
m_next(next),
|
|
m_prev(prev)
|
|
{
|
|
}
|
|
|
|
CTR_Link *
|
|
CTR_Link::getNext() const
|
|
{
|
|
return m_next;
|
|
}
|
|
|
|
CTR_Link *
|
|
CTR_Link::getPrev() const
|
|
{
|
|
return m_prev;
|
|
}
|
|
|
|
bool
|
|
CTR_Link::isHead() const
|
|
{
|
|
return m_prev == 0;
|
|
}
|
|
|
|
bool
|
|
CTR_Link::isTail() const
|
|
{
|
|
return m_next == 0;
|
|
}
|
|
|
|
void
|
|
CTR_Link::insertBefore(CTR_Link *link)
|
|
{
|
|
m_next = link;
|
|
m_prev = link->m_prev;
|
|
m_next->m_prev = this;
|
|
m_prev->m_next = this;
|
|
}
|
|
|
|
void
|
|
CTR_Link::insertAfter(CTR_Link *link)
|
|
{
|
|
m_next = link->m_next;
|
|
m_prev = link;
|
|
m_next->m_prev = this;
|
|
m_prev->m_next = this;
|
|
}
|
|
|
|
void
|
|
CTR_Link::remove()
|
|
{
|
|
m_next->m_prev = m_prev;
|
|
m_prev->m_next = m_next;
|
|
}
|
|
|
|
|
|
CTR_List::CTR_List() :
|
|
m_head(&m_tail, 0),
|
|
m_tail(0, &m_head)
|
|
{
|
|
}
|
|
|
|
CTR_Link *
|
|
CTR_List:: getHead() const
|
|
{
|
|
return m_head.getNext();
|
|
}
|
|
|
|
CTR_Link *
|
|
CTR_List::getTail() const
|
|
{
|
|
return m_tail.getPrev();
|
|
}
|
|
|
|
void
|
|
CTR_List::addHead(CTR_Link *link)
|
|
{
|
|
link->insertAfter(&m_head);
|
|
}
|
|
|
|
void
|
|
CTR_List::addTail(CTR_Link *link)
|
|
{
|
|
link->insertBefore(&m_tail);
|
|
}
|
|
|