GlutEngine.H

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#ifdef USE_GLUT

#ifndef GLUTENGINE_H
#define GLUTENGINE_H

// inspace includes
#include "ISVREngine.H"

#define OUTSIDE_GLUE_CORE
#include <mlib/points.H>


namespace InSpace {

class GlutEngine : public ISVREngine
{
public:

  static ISVREngine* createInstance(int argc, char **argv) {
    if (_instance == NULL)
      _instance = new GlutEngine(argc,argv);
    return _instance;
  }

  void run(ISApp *app);

  int maxScreenWidth();
  int maxScreenHeight();


  // these come from glut callbacks
  void draw();
  void reshape(int width, int height);
  void keyboard(unsigned char c, int x, int y);
  void keyboardspecial(int key, int x, int y);
  void keyboardup(unsigned char c, int x, int y);
  void keyboardspecialup(int key, int x, int y);
  void mousemotion(int x, int y);
  void mousebtn(int b, int s, int x, int y);
  
protected:
  // call instance() rather than the constructor
  GlutEngine(int argc, char **argv);
  virtual ~GlutEngine();

  void setProjection(cWtransf &eye2room);

  str_ptr getKeyName(int key);
  str_ptr getKeyNameChar(unsigned char c);
  void sendKbdEvent(str_ptr keyname, bool down);
  str_list _downKeys;

  int  _drawcount;
  XYpt _lastPos;
  
  int    _argc;
  char **_argv;

  Wtransf _room2tile;
  double  _halftilew;
  double  _halftileh;

  double _nearclip;
  double _farclip;
};

}

#endif

#endif // USE_GLUT

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