Serious-Engine/Sources/Engine/Base/Relations.cpp

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2016-03-12 01:20:51 +01:00
/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation
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. */
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#include "Engine/StdH.h"
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#include <Engine/Base/Relations.h>
#include <Engine/Base/ListIterator.inl>
/////////////////////////////////////////////////////////////////////
// CRelationSrc
// Construction/destruction.
CRelationSrc::CRelationSrc(void)
{
}
CRelationSrc::~CRelationSrc(void)
{
Clear();
}
void CRelationSrc::Clear(void)
{
// just delete all links, they will unlink on destruction
FORDELETELIST(CRelationLnk, rl_lnSrc, *this, itlnk) {
delete &*itlnk;
}
}
/////////////////////////////////////////////////////////////////////
// CRelationDst
// Construction/destruction.
CRelationDst::CRelationDst(void)
{
}
CRelationDst::~CRelationDst(void)
{
Clear();
}
void CRelationDst::Clear(void)
{
// just delete all links, they will unlink on destruction
FORDELETELIST(CRelationLnk, rl_lnDst, *this, itlnk) {
delete &*itlnk;
}
}
/////////////////////////////////////////////////////////////////////
// CRelationLnk
// Construction/destruction.
CRelationLnk::CRelationLnk(void)
{
}
CRelationLnk::~CRelationLnk(void)
{
// unlink from both domain and codomain members
rl_lnSrc.Remove();
rl_lnDst.Remove();
}
// Get the domain member of this pair.
CRelationSrc &CRelationLnk::GetSrc(void)
{
return *rl_prsSrc;
}
// Get the codomain member of this pair.
CRelationDst &CRelationLnk::GetDst(void)
{
return *rl_prdDst;
}
// Global functions for creating relations.
void AddRelationPair(CRelationSrc &rsSrc, CRelationDst &rdDst)
{
// create a new link
CRelationLnk &lnk = *new CRelationLnk;
lnk.rl_prsSrc = &rsSrc;
lnk.rl_prdDst = &rdDst;
// add the link to the domain and codomain members
rsSrc.AddTail(lnk.rl_lnSrc);
rdDst.AddTail(lnk.rl_lnDst);
}
void AddRelationPairTailTail(CRelationSrc &rsSrc, CRelationDst &rdDst)
{
// create a new link
CRelationLnk &lnk = *new CRelationLnk;
lnk.rl_prsSrc = &rsSrc;
lnk.rl_prdDst = &rdDst;
// add the link to the domain and codomain members
rsSrc.AddTail(lnk.rl_lnSrc);
rdDst.AddTail(lnk.rl_lnDst);
}
void AddRelationPairHeadHead(CRelationSrc &rsSrc, CRelationDst &rdDst)
{
// create a new link
CRelationLnk &lnk = *new CRelationLnk;
lnk.rl_prsSrc = &rsSrc;
lnk.rl_prdDst = &rdDst;
// add the link to the domain and codomain members
rsSrc.AddHead(lnk.rl_lnSrc);
rdDst.AddHead(lnk.rl_lnDst);
}