/*      
 * Copyright (c) 2000-2008, Ingo Weinhold <ingo_weinhold@gmx.de>,
 * Copyright (c) 2000-2008, Stephan Aßmus <superstippi@gmx.de>,
 * All Rights Reserved. Distributed under the terms of the MIT license.
 */

/*!     This class listens to a PlaybackManager
        
        The hooks are called by PlaybackManager after it executed a command,
        to keep every listener informed. FrameDropped() is something the nodes
        can call and it is passed onto the contollers, so that they can respond
        by displaying some kind of warning. */

#ifndef PLAYBACK_LISTENER_H
#define PLAYBACK_LISTENER_H

#include <Rect.h>
#include <SupportDefs.h>

class PlaybackListener {
 public:
                                                                PlaybackListener();
        virtual                                         ~PlaybackListener();

        virtual void                            PlayModeChanged(int32 mode);
        virtual void                            LoopModeChanged(int32 mode);
        virtual void                            LoopingEnabledChanged(bool enabled);

        virtual void                            VideoBoundsChanged(BRect bounds);
        virtual void                            FramesPerSecondChanged(float fps);
        virtual void                            SpeedChanged(float speed);

        virtual void                            CurrentFrameChanged(double frame);

        virtual void                            FrameDropped();
};


#endif  // PLAYBACK_LISTENER_H