GHOST_ISystem.cpp

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/*
 * ***** 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 *****
 */

#include "GHOST_ISystem.h"

#ifdef WITH_HEADLESS
#   include "GHOST_SystemNULL.h"
#elif defined(WITH_GHOST_SDL)
#   include "GHOST_SystemSDL.h"
#elif defined(WIN32)
#   include "GHOST_SystemWin32.h"
#else
#   ifdef __APPLE__
#       ifdef GHOST_COCOA
#           include "GHOST_SystemCocoa.h"
#       else
#           include "GHOST_SystemCarbon.h"
#       endif
#   else
#       include "GHOST_SystemX11.h"
#   endif
#endif


GHOST_ISystem* GHOST_ISystem::m_system = 0;


GHOST_TSuccess GHOST_ISystem::createSystem()
{
    GHOST_TSuccess success;
    if (!m_system) {
#ifdef WITH_HEADLESS
        m_system = new GHOST_SystemNULL();
#elif defined(WITH_GHOST_SDL)
        m_system = new GHOST_SystemSDL();
#elif defined(WIN32)
        m_system = new GHOST_SystemWin32 ();
#else
#   ifdef __APPLE__
#       ifdef GHOST_COCOA
            m_system = new GHOST_SystemCocoa ();
#       else
            m_system = new GHOST_SystemCarbon ();
#       endif
#   else 
        m_system = new GHOST_SystemX11 ();
#   endif
#endif 
        success = m_system != 0 ? GHOST_kSuccess : GHOST_kFailure;
    }
    else {
        success = GHOST_kFailure;
    }
    if (success) {
        success = m_system->init();
    }
    return success;
}

GHOST_TSuccess GHOST_ISystem::disposeSystem()
{
    GHOST_TSuccess success = GHOST_kSuccess;
    if (m_system) {
        delete m_system;
        m_system = 0;
    }
    else {
        success = GHOST_kFailure;
    }
    return success;
}


GHOST_ISystem* GHOST_ISystem::getSystem()
{
    return m_system;
}