#include "canvas.h"
#include "polygon.h"
-#ifdef X11_SUPPORT
-#include "simple_window.h"
-#endif
-
using namespace std;
class Universe {
Polygon *pick_polygon(scalar_t x, scalar_t y);
-#ifdef XFIG_SUPPORT
- void print_xfig(XFigTracer *tracer);
-#endif
-
-#ifdef X11_SUPPORT
- void draw(SimpleWindow *window);
-#endif
-
void draw(Canvas *canvas);
};