SegLCD_HT1621_4SegDegree.h

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#ifndef SEGLCD_HT1621_4SEGDEGREE_H
#define SEGLCD_HT1621_4SEGDEGREE_H
 
#include <SegDriver_HT1621.h>
 
class SegLCD_HT1621_4SegDegree : public SegDriver_HT1621 {
    public:
        SegLCD_HT1621_4SegDegree(uint8_t chipselect, uint8_t data, uint8_t write, uint8_t read = -1);
        void init() override;
        void clear() override;
        void setCursor(uint8_t row, uint8_t col) override;
        void setDegreeSymbol(bool state, uint8_t index = 0);
        size_t write(uint8_t ch) override;
 
    private:
        void _setColon(uint8_t row, uint8_t col, bool state) override;
        void _setDecimal(uint8_t row, uint8_t col, bool state) override;
        static constexpr uint8_t RAM_SIZE = 4;
        static constexpr uint8_t DIGITS = 4;
        static constexpr uint8_t ADDR_SYMBOLS = 6;
 
        // Decimal configuration: dots at positions 0-1, stored in symbols buffer
        static constexpr uint8_t DECIMAL_MIN_COL = 0;
        static constexpr uint8_t DECIMAL_MAX_COL = 1;
        // Note: This LCD uses symbols buffer for dots/colon, not DECIMAL_POINT_BIT
 
        // Colon configuration
        static constexpr uint8_t COLON_COL = 1;  // Colon at position 1 (between digits 1-2)
 
        // Flag for colon state
        static constexpr uint8_t FLAG_COLON_DISPLAYED = 0x01;
 
        uint8_t _mapSegments(uint8_t val);
        void _writeSymbols(uint8_t bitnum, bool state);
};
#endif