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/*
** 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Author : Alexandre Parenteau <aubonbeurre@hotmail.com> --- May 1999
*/
#include "stdafx.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "uobject.h"
URuntimeClass *URuntimeClass::sAllURuntimeClass = 0L;
const URuntimeClass* UObject::_GetBaseClass()
{ return 0L; }
const URuntimeClass UObject::classUObject(
"UObject", sizeof(UObject), 0L, &UObject::_GetBaseClass);
const URuntimeClass *UObject::rtUObject()
{ return &UObject::classUObject; }
UObject* UObject::CreateObject(const char *className)
{
URuntimeClass *next = URuntimeClass::sAllURuntimeClass;
while(next != 0L)
{
if(strcmp(next->m_lpszClassName, className) == 0)
return next->CreateObject();
next = next->m_pNextClass;
}
return 0L;
}
const URuntimeClass* UObject::GetRuntimeClass() const
{
return URUNTIME_CLASS(UObject);
}
bool UObject::IsKindOf(const URuntimeClass* pClass) const
{
// simple SI case
const URuntimeClass* pClassThis = GetRuntimeClass();
return pClassThis->IsDerivedFrom(pClass);
}
URuntimeClass::URuntimeClass(const char *lpszClassName, int nObjectSize,
UObject* (*pfnCreateObject)(), const URuntimeClass* (*pfnGetBaseClass)())
{
m_lpszClassName = lpszClassName;
m_nObjectSize = nObjectSize;
m_pfnCreateObject = pfnCreateObject;
m_pfnGetBaseClass = pfnGetBaseClass;
m_pNextClass = sAllURuntimeClass;
sAllURuntimeClass = this;
}
URuntimeClass::~URuntimeClass()
{
URuntimeClass *next = sAllURuntimeClass;
URuntimeClass *prev = 0L;
while(next != 0L)
{
if(next == this)
{
if(prev == 0L)
sAllURuntimeClass = m_pNextClass;
else
prev->m_pNextClass = m_pNextClass;
break;
}
prev = next;
next = next->m_pNextClass;
}
}
UObject* URuntimeClass::CreateObject()
{
if (m_pfnCreateObject == 0L)
{
return 0L;
}
UObject* pObject = 0L;
try
{
pObject = (*m_pfnCreateObject)();
}
catch(...)
{
}
return pObject;
}
bool URuntimeClass::IsDerivedFrom(const URuntimeClass* pBaseClass) const
{
// simple SI case
const URuntimeClass* pClassThis = this;
while (pClassThis != 0L)
{
if (pClassThis == pBaseClass)
return true;
pClassThis = (*pClassThis->m_pfnGetBaseClass)();
}
return false; // walked to the top, no match
}
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