KeyFrameSystem.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_KEYFRAMESYSTEM_H
#define OPENCAL_KEYFRAMESYSTEM_H

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

#include <vector>
using std::vector;


namespace OpenCAL
{
    // Forward declarations
    class TimeTrack;

    class OPENCAL_API KeyFrameSystem: public Actor
    {
    private:
        bool m_destructing;

    protected:
        // Typedefs
        typedef vector<TimeTrack *> TimeTrackList;

        // Member variables
        float m_currentTime;
        bool m_loop, m_stopped;
        TimeTrackList m_timeTracks;

    public:
        // Constructors and destructor
        KeyFrameSystem(System *parent);
        virtual ~KeyFrameSystem();

        // Get functions
        float getCurrentTime() const { return m_currentTime; }
        bool isLooping() const { return m_loop; }
        bool isStopped() const { return m_stopped; }

        // Set functions

        // Time stepping functions
        virtual void execute(float deltaSeconds);
        void rewind();
        void setTime(float time);


    protected:
        // Protected functions
        void addTimeTrack(TimeTrack *track) { m_timeTracks.push_back(track); }
        void deleteTimeTrack(TimeTrack *track);

    friend class TimeTrack;
    };
}

#endif // OPENCAL_KEYFRAMESYSTEM_H

---