RefCountedClass.h

//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API 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.
//
//    H3D API 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 H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
//
#ifndef __REFCOUNTEDCLASS_H__
#define __REFCOUNTEDCLASS_H__

#include "H3DApi.h"
#include "Console.h"
#include <string>
#include <iostream>
using namespace std;

namespace H3D {

  class H3DAPI_API RefCountedClass {
  public:

    RefCountedClass( ):
      ref_count( 0 ),
      name( "" ),
      type_name( "RefCountedClass" ),
      is_initialized( false ),
      manual_initialize( false ){}


    virtual ~RefCountedClass() {
#ifdef REF_COUNT_DEBUG
      Console(1) << "~RefCountedClass: " << this << endl;
#endif
    }

    virtual void initialize() {
      is_initialized = true;
    }

    inline void ref() { 
      ref_count++;
#ifdef REF_COUNT_DEBUG
      Console(1) << "Ref " << getName() << " " << this << ": " 
                 << ref_count << endl;
#endif
      if( !manual_initialize && ref_count == 1 ) {
        initialize();
      }
    }

    inline void setManualInitialize( bool b ) {
      manual_initialize = b;
    }

    inline bool getManualInitialize() {
      return manual_initialize;
    }

    inline void unref() {
      ref_count--;
#ifdef REF_COUNT_DEBUG
      Console(1) << "Unref " << getName() << " " << this << ": " 
                 << ref_count << endl;
#endif
      if( ref_count == 0 ) {
        delete this;
      }
    }

    inline string getName() { 
      if( name == "" )
        return string( "Unnamed " ) + getTypeName();
      else 
        return name; 
    }

    inline void setName( const string &_name ) { 
      name = _name;
    }
    
    inline bool hasName() { return name != ""; }

    string getTypeName() {
      return type_name;
    }

    inline bool isInitialized() {
      return is_initialized;
    }

  protected:
    unsigned int ref_count; 

    string name;

    string type_name;

    bool is_initialized;

    bool manual_initialize;
  };
    
}

#endif

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