/*
    SeeedGrayOLED.cpp
    SSD1327 Gray OLED Driver Library

    Copyright (c) 2011 seeed technology inc.
    Author        :   Visweswara R
    Create Time   :   Dec 2011
    Change Log    :

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef SeeedGrayOLED_data_H
#define SeeedGrayOLED_data_H

// SeeedGrayOLED Instruction set addresses

#include "Arduino.h"
#include <SoftwareI2C.h>


#define SH1107G  1
#define SSD1327  2

#define VERTICAL_MODE                       01
#define HORIZONTAL_MODE                     02

#define SeeedGrayOLED_Address               0x3c
#define SeeedGrayOLED_Command_Mode          0x80
#define SeeedGrayOLED_Data_Mode             0x40

#define SeeedGrayOLED_Display_Off_Cmd       0xAE
#define SeeedGrayOLED_Display_On_Cmd        0xAF

#define SeeedGrayOLED_Normal_Display_Cmd    0xA4
#define SeeedGrayOLED_Inverse_Display_Cmd   0xA7
#define SeeedGrayOLED_Activate_Scroll_Cmd   0x2F
#define SeeedGrayOLED_Dectivate_Scroll_Cmd  0x2E
#define SeeedGrayOLED_Set_ContrastLevel_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 SeeedGrayOLED {

  public:

    char addressingMode;

    void init(int IC);

    void setNormalDisplay();
    void setInverseDisplay();

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

    void setVerticalMode();
    void setHorizontalMode();

    void setTextXY(unsigned char Row, unsigned char Column);
    void clearDisplay();
    void setContrastLevel(unsigned char ContrastLevel);
    void putChar(unsigned char c);
    void putString(const char* String);
    unsigned char putNumber(long n);
    unsigned char putFloat(float floatNumber, unsigned char decimal);
    unsigned char putFloat(float floatNumber);

    void drawBitmap(const unsigned char* bitmaparray, int bytes);

    void setHorizontalScrollProperties(bool direction, unsigned char startRow, unsigned char endRow,
                                       unsigned char startColumn, unsigned char endColumn, unsigned char scrollSpeed);
    void activateScroll();
    void deactivateScroll();

    void initSoftwareI2C(SoftwareI2C* w, int __sda, int __scl);


  private:

    unsigned char grayH;
    unsigned char grayL;
    int Drive_IC;

    SoftwareI2C* Wire;


};

extern SeeedGrayOLED SeeedGrayOled;  // SeeedGrayOLED object

#endif