/*
  06/01/2016
  Author: Makerbro
  Platforms: ESP8266
  Language: C++
  File: ACROBOTIC_SSD1306.h
  ------------------------------------------------------------------------
  Description: 
  SSD1306 OLED Driver Library.
  ------------------------------------------------------------------------
  Please consider buying products from ACROBOTIC to help fund future
  Open-Source projects like this! We'll always put our best effort in every
  project, and release all our design files and code for you to use. 
  https://acrobotic.com/
  ------------------------------------------------------------------------
  License:
  Released under the MIT license. Please check LICENSE.txt for more
  information.  All text above must be included in any redistribution. 
*/

#ifndef ACROBOTIC_SSD1306_H
#define ACROBOTIC_SSD1306_H

#if ARDUINO >= 100
 #include "Arduino.h"
#else
 #include "WProgram.h"
#endif

#ifdef __AVR__
  #include <avr/pgmspace.h>
  #define OLEDFONT(name) static const uint8_t __attribute__ ((progmem))_n[]
#elif defined(ESP8266)
  #include <pgmspace.h>
  #define OLEDFONT(name) static const uint8_t name[]
#else
  #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
  #define OLEDFONT(name) static const uint8_t name[]
#endif

#include "Wire.h"
#include "fonts/font8x8.h"
#include "fonts/font5x7.h"

#define SSD1306_Max_X                 127    //128 Pixels
#define SSD1306_Max_Y                 63     //64  Pixels

#define PAGE_MODE                     01
#define HORIZONTAL_MODE               02

#define SSD1306_Address               0x3C
#define SSD1306_Command_Mode          0x80
#define SSD1306_Data_Mode             0x40
#define SSD1306_Display_Off_Cmd       0xAE
#define SSD1306_Display_On_Cmd        0xAF
#define SSD1306_Normal_Display_Cmd    0xA6
#define SSD1306_Inverse_Display_Cmd   0xA7
#define SSD1306_Activate_Scroll_Cmd   0x2F
#define SSD1306_Dectivate_Scroll_Cmd  0x2E
#define SSD1306_Set_Brightness_Cmd    0x81

#define Scroll_Left                   0x00
#define Scroll_Right                  0x01

#define Scroll_2Frames                0x7
#define Scroll_3Frames                0x4
#define Scroll_4Frames                0x5
#define Scroll_5Frames                0x0
#define Scroll_25Frames               0x6
#define Scroll_64Frames               0x1
#define Scroll_128Frames              0x2
#define Scroll_256Frames              0x3

class ACROBOTIC_SSD1306 {
  public:
    char addressingMode;
    void init(void);

    void setNormalDisplay();
    void setInverseDisplay();

    void sendCommand(unsigned char command);
    void sendData(unsigned char Data);

    void setPageMode();
    void setHorizontalMode();

    void setTextXY(unsigned char Row, unsigned char Column);
    void clearDisplay();
    void setBrightness(unsigned char Brightness);
    bool putChar(unsigned char c);
    void putString(const char *string);
    void putString(String string);
    unsigned char putNumber(long n);
    unsigned char putFloat(float floatNumber,unsigned char decimal);
    unsigned char putFloat(float floatNumber);
    void drawBitmap(unsigned char *bitmaparray,int bytes);

    void setHorizontalScrollProperties(
        bool direction,
        unsigned char startPage, 
        unsigned char endPage, 
        unsigned char scrollSpeed);
    void activateScroll();
    void deactivateScroll();

    void setFont(const uint8_t* font);

  private:
    const uint8_t* m_font;      // Current font.
    uint8_t m_font_offset = 2;  // Font bytes for meta data.
    uint8_t m_font_width;       // Font witdth.
    uint8_t m_col;              // Cursor column.
    uint8_t m_row;              // Cursor row (RAM). 
};

extern ACROBOTIC_SSD1306 oled;  // ACROBOTIC_SSD1306 object 

#endif