#ifndef GRAFIX_HH
#define GRAFIX_HH
#include <X11/Xlib.h>
#include "vector.hh"

class Grafix {
  
  Display *_display;
  Pixmap _drawable;
  Screen *_screen;
  Colormap _colormap;
  int _depth;
  
  struct GCCache {
    XGCValues _xgcv;
    unsigned long _mask;
    XColor _foreground;
    
    bool acceptable(const GCCache &);
    bool combine(const GCCache &);
  };

  static Vector<GCCache> all_cached_gcs;
  static Vector<Grafix *> all_instances;
  
  Vector<GC> _gcs;
  Vector<unsigned long> _gc_foregrounds;
  
  Vector<unsigned long> _pixels;
  
  void alloc_color(XColor *);
  void update_gc(int, unsigned long, GCCache *);
  static int make_cached_gc(unsigned long, XGCValues *, XColor *);
  
 public:
  
  Grafix(Display *, Window);
  ~Grafix();
  
  Display *display() const		{ return _display; }
  int depth() const			{ return _depth; }
  
  GC xgc(int i) const			{ return _gcs[i]; }
  static int line_gc(int r, int g, int b);

  static bool gc_foreground(int, int &r, int &g, int &b);
  
};

#endif