display_print.hpp

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#pragma once
 
#include <cstdint>
#include <cstdio> // for size_t
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <string>
#include <array>
#include "display_data.hpp"
 
class Print
{
    private:
        int write_error;
        size_t printNumber(unsigned long, uint8_t);
        size_t printFloat(double, uint8_t);
    protected:
        void setWriteError(int err = 1) { write_error = err; }
    public:
        enum BaseNum : uint8_t{
            DEC = 10, 
            HEX = 16, 
            OCT = 8,  
            BIN = 2   
        };
 
        Print() : write_error(0) {}
 
        int getWriteError() { return write_error; }
        void clearWriteError() { setWriteError(0); }
        virtual size_t write(uint8_t) = 0;
        size_t write(const char *str) {
            if (str == nullptr) 
            {
                setWriteError(DisplayRet::CharArrayNullptr); //_CharArrayNullptr
                return 0;
            }
            clearWriteError();
            return write((const uint8_t *)str, strlen(str));
        }
        virtual size_t write(const uint8_t *buffer, size_t size);
        size_t write(const char *buffer, size_t size) {
            return write((const uint8_t *)buffer, size);
        }
 
        // default to zero, meaning "a single write may block"
        // should be overriden by subclasses with buffering
        virtual int availableForWrite() { return 0; }
 
        size_t print(const char[]);
        size_t print(char);
        size_t print(int, int = DEC);
        size_t print(unsigned int, int = DEC);
        size_t print(long, int = DEC);
        size_t print(unsigned long, int = DEC);
        size_t print(double, int = 2);
        size_t print(const std::string &);
 
        size_t println(const char[]);
        size_t println(char);
        size_t println(int, int = DEC);
        size_t println(unsigned int, int = DEC);
        size_t println(long, int = DEC);
        size_t println(unsigned long, int = DEC);
        size_t println(double, int = 2);
        size_t println(void);
        size_t println(const std::string &s);
};