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/*

 * displayclass.H

 *

 *  Created on: 31 Oct 2020

 *      Author: mike

 */

#pragma once

#include <cstdint>

#include "libOled/fontclass.H"

inline int constexpr dataSize (int const width, int const height)

{

  return (width * height /8);

}

enum colour_t

{

    BLACK,

    WHITE,

    INVERT

};

class display_t

{

public:

  display_t (int const width, int const height, int const ramwidth , uint8_t * const data);

  virtual ~display_t();

  uint8_t getRotation();

  int16_t width();

  int16_t height();

  void init();

  void clearDisplay();

  void invertDisplay(uint8_t i);

  void display();

  void startscrollright(uint8_t start, uint8_t stop);

  void startscrollleft(uint8_t start, uint8_t stop);

  void startscrolldiagright(uint8_t start, uint8_t stop);

  void startscrolldiagleft(uint8_t start, uint8_t stop);

  void stopscroll(void);

  void dim(uint8_t contrast);

  void drawPixel(int16_t x, int16_t y, colour_t color);

  void drawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, colour_t color);

  void gotoxy(int x, int y) {m_cursor_x = x; m_cursor_y=y;};

  void printString(font_t & font, char * string, int length, colour_t colour);

  void printChar (font_t &font, char c, colour_t colour);

  int cursor_x() {return m_cursor_x;};

  int cursor_y() {return m_cursor_y;};

private:

  // set=1 means send data set=0 means send control

  virtual void oledSetCD(uint8_t set) =0;

  virtual void oledWrite(uint8_t d) =0;

  virtual void oledReset() = 0;

  virtual void oledWrite(uint8_t * buff, uint8_t len) = 0;

  int const m_width; // pixel width

  int const m_height; // pixel height

  int const m_ramwidth; // OLED controller ram pixel width

  int m_cursor_x;

   int m_cursor_y;

   int m_rotation;

  uint8_t * const   m_data;

 };