ObjectIterator.h

/***************************************************************************
 *   This file is part of OpenCAL: Open Computer Animation Library         *
 *   I created OpenCAL as my master's thesis Computer Science (multimedia) *
 *   at the tUL university in Diepenbeek, Belgium                          *
 *                                                                         *
 *   Copyright (C) 2003-2004 by Jeroen Dierckx                             *
 *   jeroen.dierckx@student.luc.ac.be                                      *
 *                                                                         *
 ***************************************************************************/

#ifndef OPENCAL_OBJECTITERATOR_H
#define OPENCAL_OBJECTITERATOR_H

// Includes
#include <OpenCAL/global.h>

#include <vector>
using std::vector;


namespace OpenCAL
{
    // Forward declarations
    class System;
    class Object;

    class OPENCAL_API ObjectIterator
    {
    protected:
        // Typedefs
        typedef vector<unsigned int> SystemStack;

        // Member variables
        System *m_system;
        Object *m_currentObject;
        System *m_currentSystem;
        SystemStack m_systemStack;
        unsigned int m_objectIndex;

    public:
        // Constructors and destructor
        ObjectIterator(System *system);
        virtual ~ObjectIterator();

        // Get functions

        // Set functions
        
        // Operator functions
        
        ObjectIterator &operator++();
        const ObjectIterator operator++(int);
        Object *operator*() { return m_currentObject; }
        Object *current() { return m_currentObject; }

        // Other functions
        void reset();
    
    protected:
        // Protected functions
        Object *gotoFirstObject(System *system);
    };
}

#endif // OPENCAL_OBJECTITERATOR_H

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