// DrawingWindow.h
//
// Written 11 Feb 1996 by Max Hailperin <max@gac.edu>.
//
// Defines interface for a *very* stripped down class of graphics windows.
//
// Most glaring omissions:
//  (1) Any way to draw things other than points, like lines, arcs, filled regions.
//  (2) Any way to clear the window.
//  (3) Any way to get rid of the window.

// next couple lines and last line of file prevent repeated inclusion
#ifndef _DRAWING_WINDOW_H
#define _DRAWING_WINDOW_H

class DrawingWindowRep; // underlying representation, unspecified other than that 
                        //   it exists; this allows only the declaration of a
                        //   pointer to it.

class DrawingWindow {
 public:
  DrawingWindow(); // constructor 
  void drawPoint(float x, float y); // x and y should be between -1.0 and 1.0
                                    //   with (1.0,1.0) at top right corner 
 private:
  DrawingWindowRep *rep;  // this points to the underlying representation, whatever
                          //  that might be
};
#endif