Listing 4: Defines a Tetris cell

// A TrisCell is a single cell on the Tris field.  A TrisCell is constructed
// with a pointer to its parent object,
// so it can draw itself.
class TrisCell {
  int x, y, w, h;
  wxCanvas *parent;
  // Pointer to brush with which to draw
  // this cell
  wxBrush *brush;
  Bool used;
public:
  TrisCell(TrisField *p);
  void Clone(TrisCell *);
  Bool Used(void);
  void Draw(void);
  void Size(int X, int Y, int W, int H);
  void SetBrush(wxBrush *b);
  wxBrush *GetBrush(void);
  void SetUsed(Bool tf);
};
/* End of File */