#ifndef LcdFace_SEEN
#define LcdFace_SEEN
///////    File LcdFace.h    ///////
#include    <iostream.h>
#include    "CalcFace.h"
#include    "CalcWindow.h"

class LcdFace : public CalcFace
{   public:
        LcdFace( const int digs,            // calculator precision
                 const char* k              // operation keys recognized
                );
        void show_number(double number);    // virtual
        void show_error()                   // virtual
        {   cw->show_op('E');    }
        void show_str(char* str)            // virtual
        {   cw->show_str(str);  }
        void show_op(char op)               // virtual
        {   cw->show_op(op);  }
        ~LcdFace();
    protected:
        CalcWindow*   cw;
        void build_number(char c, int& i);  // virtual
        int inchar() { return(cw->Getch()); }
};
#endif