OSGFieldFactory.cpp

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/*---------------------------------------------------------------------------*\
 *                                OpenSG                                     *
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 *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
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 *                                                                           *
\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                License                                    *
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 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
 * by the Free Software Foundation, version 2.                               *
 *                                                                           *
 * This library 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         *
 * Library General Public License for more details.                          *
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 * You should have received a copy of the GNU Library General Public         *
 * License along with this library; if not, write to the Free Software       *
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\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                Changes                                    *
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 *                                                                           *
 *                                                                           *
 *                                                                           *
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\*---------------------------------------------------------------------------*/

#include <stdlib.h>
#include <stdio.h>

#include "OSGConfig.h"
#include "OSGFieldFactory.h"
#include "OSGFieldType.h"
#include "OSGBaseFunctions.h"
#include "OSGLog.h"

OSG_USING_NAMESPACE

/*-------------------------------------------------------------------------*/
/*                            Class Variable                               */

FieldFactory FieldFactory::_the;

std::map<UInt32, FieldType *> *FieldFactory::_fieldTypeM  = NULL;

/*-------------------------------------------------------------------------*/
/*                             Destructor                                  */

FieldFactory::~FieldFactory(void)
{
    SINFO << "INFO: Destroy Singleton FieldFactory" << std::endl;
}

/*-------------------------------------------------------------------------*/
/*                               Create                                    */

Field *FieldFactory::createField(UInt32 typeId)
{
    FieldType *pType = getFieldType(typeId);


    if((pType                != NULL) &&
       (pType->_createMethod != NULL))
    {
        return pType->_createMethod();
    }
    else
    {
        return NULL;
    }
}

Field *FieldFactory::createField(const Char8 *szName)
{
    FieldType *pType          = getFieldType(szName);

    if((pType                != NULL) &&
       (pType->_createMethod != NULL))
    {
        return pType->_createMethod();
    }
    else
    {
        return NULL;
    }
}

/*-------------------------------------------------------------------------*/
/*                                Get                                      */

UInt32 FieldFactory::getNFieldTypes(void)
{
    if(_fieldTypeM != NULL) 
        return _fieldTypeM->size();

    return 0;
}
    
FieldType *FieldFactory::getFieldType(const Char8 *szName)
{
    std::map<UInt32, FieldType *>::iterator  mIt;
    FieldType                               *returnValue = NULL;
    
    if(_fieldTypeM != NULL) 
    {
        mIt = _fieldTypeM->begin();

        while(mIt != _fieldTypeM->end())
        {
            if(strcmp(szName, (*mIt).second->getCName()) == 0)
            {
                returnValue = (*mIt).second;
                break;
            }
            
            mIt++;
        }
    }

    return returnValue;
}

FieldType *FieldFactory::getFieldType(UInt32 typeId)
{
    std::map<UInt32, FieldType *>::iterator  mIt;

    if(_fieldTypeM == NULL)
        return NULL;
   
    mIt = _fieldTypeM->find(typeId);

    if(mIt != _fieldTypeM->end())
    {
        return (*mIt).second;
    }
    else
    {
        return NULL;
    }
}

const Char8 *FieldFactory::getFieldTypeName(UInt32 typeId)
{
    FieldType *pFieldType = getFieldType(typeId);

    return pFieldType ? pFieldType->getCName() : NULL;
}

/*-------------------------------------------------------------------------*/
/*                                 the                                     */

FieldFactory &FieldFactory::the(void)
{
    return _the;
}

/*-------------------------------------------------------------------------*/
/*                            Constructors                                 */

FieldFactory::FieldFactory(void)
{
}

/*-------------------------------------------------------------------------*/
/*                                 Add                                     */

#ifdef OSG_WIN32_ICL
#pragma warning (disable : 383)
#endif

void FieldFactory::addType(FieldType *pType)
{
    if(pType == NULL)
        return;

    if(getFieldType(pType->getId()) != NULL)
        return;

    if(_fieldTypeM == NULL)
        _fieldTypeM = new std::map<UInt32, FieldType *>();

    (*_fieldTypeM)[pType->getId()] = pType;
}

#ifdef OSG_WIN32_ICL
#pragma warning (default : 383)
#endif



/*-------------------------------------------------------------------------*/
/*                              cvs id's                                   */

#ifdef __sgi
#pragma set woff 1174
#endif

#ifdef OSG_LINUX_ICC
#pragma warning( disable : 177 )
#endif

namespace 
{
    static Char8 cvsid_cpp[] = "@(#)$Id: $";
    static Char8 cvsid_hpp[] = OSGFIELDFACTORY_HEADER_CVSID;
}

---