/*
    SWWViewer

    An OpenSceneGraph viewer for pyVolution SWW files.
    copyright (C) 2004 Geoscience Australia
*/

#ifndef KEYBOARDEVENTHANDLER_H
#define KEYBOARDEVENTHANDLER_H

#include <project.h>
#include <osgGA/GUIEventHandler>


class KeyboardEventHandler : public osgGA::GUIEventHandler 
{

public:
    KeyboardEventHandler( int nTimesteps, float tps);
    virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&);
    virtual void accept(osgGA::GUIEventHandlerVisitor&) {}
    virtual bool isPaused(){return _paused;}
    virtual bool timestepChanged();
    virtual bool toggleWireframe();
    virtual int getTimestep(){return (unsigned int) _timestep;}
    virtual void setTime(float time);

private:
    int _direction, _timestep, _ntimesteps;
    float _tps, _prevtime, _tpsorig;
    bool _paused, _timestepchanged, _togglewireframe;
};

#endif  // KEYBOARDEVENTHANDLER_H