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sglObject.hpp

/*****************************************************************************
 * SGL: A Scene Graph Library
 *
 * Copyright (C) 1997-2001  Scott McMillan   All Rights Reserved.
 *
 * 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; either
 * version 2 of the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *****************************************************************************
 *     File: sglObject.hpp
 *  Created: 30 December 1997
 *****************************************************************************/

#ifndef __SGL_OBJECT_HPP
#define __SGL_OBJECT_HPP

#include <sgl.h>
#include <sglUserData.hpp>
#include <string>

//----------------------------------------------------------------------------

//----------------------------------------------------------------------------

class SGL_DLL_API sglObject /* : public sglMemory */
{
public:
   enum CloneModeEnum
   {
      eCLONE_ONE_NODE        = 0,

      eCLONE_NODES_RECURSIVE = 0x01,

      eCLONE_USER_DATA       = 0x02

//    eCLONE_CAMERAS = 0x04,
//    eCLONE_GEOMETRY = 0x08,        // clone drawables, too (not vertex data)
//    eCLONE_GEOMETRY_DATA = 0x10,   // clones drawables per vertex data too.
//    eCLONE_STATE = 0x20,           // clone the sglStatelets
//    eCLONE_TEXTURE_IMAGE = 0x40    // copy the texture image data
   };

public:
   sglObject();
   virtual ~sglObject() = 0;

   void ref()   { m_ref_count++; }

   void deref() { assert(m_ref_count != 0); --m_ref_count; }

   unsigned int getRefCount() const { return m_ref_count; }

   void setName(const string &name) { m_name = name; }

   const string &getName() const { return m_name; }

   void setUserData(sglUserData *data) { m_user_data = data; }

   sglUserData* getUserData() const    { return m_user_data; }

   virtual void printInfo(ostream &ostrm, const char *indent_string) const;

protected:
   // used by the clone traversal
   void copyTo(sglObject *dst, unsigned int mode) const;

private: // not implemented
   sglObject(const sglObject &);
   sglObject &operator=(const sglObject &);

protected:
   unsigned int m_ref_count;
   sglUserData *m_user_data;
   string m_name;
};

//----------------------------------------------------------------------------

inline ostream& operator<<(ostream& ostrm, const sglObject& object)
{
   object.printInfo(ostrm, " ");
   return ostrm;
}

#endif

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