// GxFont_GFX_Example : example to show the use of additional fonts rendering these fonts
//
// Author : J-M Zingg
//
// Version : see library.properties
//
// License: GNU GENERAL PUBLIC LICENSE V3, see LICENSE
//
// Library: https://github.com/ZinggJM/GxEPD
//
// NOTE: you need to SAVE the modified example to a saveable location for UTF-8 characters to work
//       e.g. for Umlauts

// for use of additional fonts you need to enable these in file GxFont_GFX.h
// and install the library
//
// selection of the additional fonts is done by the following methods:
//
// void setFont(const uint8_t *font); // selects rendering and fonts from library U8G2_FOR_ADAFRUIT_GFX
//
// void setFreeFont(const GFXfont *f = NULL); // selects rendering and fonts from library GxFont_GFX_TFT_eSPI
// void void setTextFont(uint8_t font); // selects rendering and fonts from library GxFont_GFX_TFT_eSPI
//
// void setFont(uint8_t f); // selects rendering and fonts from library Adafruit_tfGFX
// (no additional fonts, as all are now part of Adafruit_GFX, but fonts above 7bit character set)
//
// void setFont(const GFXfont *f = NULL); // reverts back to Adafruit_GFX FreeFonts
// use setFont((void*)NULL); // to select Adafruit_GFX classic font
//
// these additions may not work with AVR Arduinos
//
// these additions are only partially tested; more tests and additions may follow

// Supporting Arduino Forum Topics:
// Waveshare e-paper displays with SPI: http://forum.arduino.cc/index.php?topic=487007.0
// Good Dispay ePaper for Arduino : https://forum.arduino.cc/index.php?topic=436411.0

// mapping suggestion from Waveshare SPI e-Paper to Wemos D1 mini
// BUSY -> D2, RST -> D4, DC -> D3, CS -> D8, CLK -> D5, DIN -> D7, GND -> GND, 3.3V -> 3.3V

// mapping suggestion from Waveshare SPI e-Paper to generic ESP8266
// BUSY -> GPIO4, RST -> GPIO2, DC -> GPIO0, CS -> GPIO15, CLK -> GPIO14, DIN -> GPIO13, GND -> GND, 3.3V -> 3.3V

// mapping suggestion for ESP32, e.g. LOLIN32, see .../variants/.../pins_arduino.h for your board
// NOTE: there are variants with different pins for SPI ! CHECK SPI PINS OF YOUR BOARD
// BUSY -> 4, RST -> 16, DC -> 17, CS -> SS(5), CLK -> SCK(18), DIN -> MOSI(23), GND -> GND, 3.3V -> 3.3V

// new mapping suggestion for STM32F1, e.g. STM32F103C8T6 "BluePill"
// BUSY -> A1, RST -> A2, DC -> A3, CS-> A4, CLK -> A5, DIN -> A7

// mapping suggestion for AVR, UNO, NANO etc.
// BUSY -> 7, RST -> 9, DC -> 8, CS-> 10, CLK -> 13, DIN -> 11

// mapping suggestion for Arduino MEGA
// BUSY -> 7, RST -> 9, DC -> 8, CS-> 53, CLK -> 52, DIN -> 51

// mapping suggestion for Arduino DUE
// BUSY -> 7, RST -> 9, DC -> 8, CS-> 77, CLK -> 76, DIN -> 75
// SPI pins are also on 6 pin 2x3 SPI header

// include library, include base class, make path known
#include <GxEPD.h>

//
// NOTE: you need to SAVE the modified example to a saveable location for UTF-8 characters to work
//       e.g. for Umlauts

// select the display class to use, only one
//#include <GxDEPG0150BN/GxDEPG0150BN.h>    // 1.50" b/w
//#include <GxGDEP015OC1/GxGDEP015OC1.h>    // 1.54" b/w
//#include <GxGDEH0154D67/GxGDEH0154D67.h>  // 1.54" b/w 200x200, SSD1681
//#include <GxGDEW0154T8/GxGDEW0154T8.h>    // 1.54" b/w 152x152 UC8151 (IL0373)
//#include <GxGDEW0154M09/GxGDEW0154M09.h>  // 1.54" b/w 200x200 JD79653A
//#include <GxGDEW0154M10/GxGDEW0154M10.h>  // 1.54" b/w 152x152 UC8151D
//#include <GxGDEW0154Z04/GxGDEW0154Z04.h>  // 1.54" b/w/r 200x200
//#include <GxGDEW0154Z17/GxGDEW0154Z17.h>  // 1.54" b/w/r 152x152
//#include <GxGDEH0154Z90/GxGDEH0154Z90.h>  // 1.54" b/w/r 200x200 SSD1681
//#include <GxGDEW0213I5F/GxGDEW0213I5F.h>  // 2.13" b/w 104x212 flexible
//#include <GxGDE0213B1/GxGDE0213B1.h>      // 2.13" b/w
//#include <GxGDEH0213B72/GxGDEH0213B72.h>  // 2.13" b/w new panel
//#include <GxGDEH0213B73/GxGDEH0213B73.h>  // 2.13" b/w newer panel
//#include <GxGDEM0213B74/GxGDEM0213B74.h>  // 2.13" b/w 128x250 SSD1680
//#include <GxGDEW0213Z16/GxGDEW0213Z16.h>  // 2.13" b/w/r
//#include <GxGDEH0213Z19/GxGDEH0213Z19.h>  // 2.13" b/w/r UC8151D
//#include <GxGDEW0213T5D/GxGDEW0213T5D.h>  // 2.13" b/w 104x212 UC8151D
//#include <GxDEPG0213BN/GxDEPG0213BN.h>    // 2.13" b/w 128x250, SSD1680, TTGO T5 V2.4.1, V2.3.1
//#include <GxGDEH029A1/GxGDEH029A1.h>      // 2.9" b/w
//#include <GxGDEW029T5/GxGDEW029T5.h>      // 2.9" b/w UC8151 (IL0373)
//#include <GxGDEW029T5D/GxGDEW029T5D.h>    // 2.9" b/w UC8151D
//#include <GxGDEM029T94/GxGDEM029T94.h>    // 2.9" b/w
//#include <GxDEPG0290BS/GxDEPG0290BS.h>    // 2.9" b/w Waveshare variant, TTGO T5 V2.4.1 2.9"
//#include <GxGDEW029Z10/GxGDEW029Z10.h>    // 2.9" b/w/r
//#include <GxGDEH029Z13/GxGDEH029Z13.h>    // 2.9" b/w/r UC8151D
//#include <GxGDEW026T0/GxGDEW026T0.h>      // 2.6" b/w
//#include <GxDEPG0266BN/GxDEPG0266BN.h>      // 2.66" b/w 152x296, SSD1680, TTGO T5 V2.66, TTGO T5 V2.4.1
//#include <GxGDEW027C44/GxGDEW027C44.h>    // 2.7" b/w/r
//#include <GxGDEW027W3/GxGDEW027W3.h>      // 2.7" b/w
//#include <GxGDEY027T91/GxGDEY027T91.h>    // 2.7" b/w
//#include <GxGDEW0371W7/GxGDEW0371W7.h>    // 3.7" b/w
//#include <GxGDEW042T2/GxGDEW042T2.h>      // 4.2" b/w
//#include <GxGDEW042Z15/GxGDEW042Z15.h>    // 4.2" b/w/r
//#include <GxGDEW0583T7/GxGDEW0583T7.h>    // 5.83" b/w
//#include <GxGDEW075T8/GxGDEW075T8.h>      // 7.5" b/w
//#include <GxGDEW075T7/GxGDEW075T7.h>      // 7.5" b/w 800x480
//#include <GxGDEW075Z09/GxGDEW075Z09.h>    // 7.5" b/w/r
//#include <GxGDEW075Z08/GxGDEW075Z08.h>    // 7.5" b/w/r 800x480

#if !defined(_GxFont_GFX_TFT_eSPI_H_)
// FreeFonts from Adafruit_GFX
#include <Fonts/FreeMonoBold9pt7b.h>
#include <Fonts/FreeMonoBold12pt7b.h>
//#include <Fonts/FreeMonoBold18pt7b.h>
//#include <Fonts/FreeMonoBold24pt7b.h>
#endif
#if defined(_ADAFRUIT_TF_GFX_H_)
#include <Fonts/Open_Sans_Bold_12pt.h>
#endif


#include <GxIO/GxIO_SPI/GxIO_SPI.h>
#include <GxIO/GxIO.h>

#if defined(ESP8266)

// for SPI pin definitions see e.g.:
// C:\Users\xxx\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\variants\generic\common.h

GxIO_Class io(SPI, /*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2); // arbitrary selection of D3(=0), D4(=2), selected for default of GxEPD_Class
GxEPD_Class display(io /*RST=D4*/ /*BUSY=D2*/); // default selection of D4(=2), D2(=4)

#elif defined(ESP32)

// for SPI pin definitions see e.g.:
// C:\Users\xxx\Documents\Arduino\hardware\espressif\esp32\variants\lolin32\pins_arduino.h

GxIO_Class io(SPI, /*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16); // arbitrary selection of 17, 16
GxEPD_Class display(io, /*RST=*/ 16, /*BUSY=*/ 4); // arbitrary selection of (16), 4
// for LILYGO® TTGO T5 2.66 board uncomment next two lines instead of previous two lines
//GxIO_Class io(SPI, /*CS=5*/ SS, /*DC=*/ 19, /*RST=*/ 4); // LILYGO® TTGO T5 2.66
//GxEPD_Class display(io, /*RST=*/ 4, /*BUSY=*/ 34); // LILYGO® TTGO T5 2.66

#elif defined(ARDUINO_ARCH_SAMD)

// for SPI pin definitions see e.g.:
// C:\Users\xxx\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\variants\mkr1000\variant.h
// C:\Users\xxx\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\variants\mkrzero\variant.h

GxIO_Class io(SPI, /*CS=*/ 4, /*DC=*/ 7, /*RST=*/ 6);
GxEPD_Class display(io, /*RST=*/ 6, /*BUSY=*/ 5);

#elif defined(ARDUINO_GENERIC_STM32F103C) && defined(MCU_STM32F103C8)

// STM32 Boards(STM32duino.com) Generic STM32F103C series STM32F103C8
// for SPI pin definitions see e.g.:
// C:\Users\xxx\Documents\Arduino\hardware\Arduino_STM32\STM32F1\variants\generic_stm32f103c\variant.h
// C:\Users\xxx\Documents\Arduino\hardware\Arduino_STM32\STM32F1\variants\generic_stm32f103c\board\board.h

// new mapping suggestion for STM32F1, e.g. STM32F103C8T6 "BluePill"
// BUSY -> A1, RST -> A2, DC -> A3, CS-> A4, CLK -> A5, DIN -> A7

GxIO_Class io(SPI, /*CS=*/ SS, /*DC=*/ 3, /*RST=*/ 2);
GxEPD_Class display(io, /*RST=*/ 2, /*BUSY=*/ 1);

#elif defined(ARDUINO_GENERIC_STM32F103V) && defined(MCU_STM32F103VB)

// STM32 Boards(STM32duino.com) Generic STM32F103V series STM32F103VB
// for SPI pin definitions see e.g.:
// C:\Users\xxx\Documents\Arduino\hardware\Arduino_STM32\STM32F1\variants\generic_stm32f103vb\variant.h
// C:\Users\xxx\Documents\Arduino\hardware\Arduino_STM32\STM32F1\variants\generic_stm32f103vb\board\board.h

// Good Display DESPI-M01
// note: needs jumper wires from SS=PA4->CS, SCK=PA5->SCK, MOSI=PA7->SDI

GxIO_Class io(SPI, /*CS=*/ SS, /*DC=*/ PE15, /*RST=*/ PE14); // DC, RST as wired by DESPI-M01
GxEPD_Class display(io, /*RST=*/ PE14, /*BUSY=*/ PE13); // RST, BUSY as wired by DESPI-M01

#else

// for SPI pin definitions see e.g.:
// C:\Users\xxx\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.6.21\variants\standard\pins_arduino.h

GxIO_Class io(SPI, /*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9); // arbitrary selection of 8, 9 selected for default of GxEPD_Class
GxEPD_Class display(io /*RST=9*/ /*BUSY=7*/); // default selection of (9), 7

#endif

#if defined(_GxGDEW0154Z04_H_) || defined(_GxGDEW0213Z16_H_) || defined(_GxGDEW029Z10_H_) || defined(_GxGDEW027C44_H_) || defined(_GxGDEW042Z15_H_) || defined(_GxGDEW075Z09_H_)
#define HAS_RED_COLOR
#endif

void setup()
{
  Serial.begin(115200);
  Serial.println();
  Serial.println("setup");

  display.init(115200); // enable diagnostic output on Serial

  Serial.println("setup done");
}

void loop()
{
#if !defined(_ADAFRUIT_TF_GFX_H_) && !defined(_GxFont_GFX_TFT_eSPI_H_) && !defined(U8g2_for_Adafruit_GFX_h)
  showFont("FreeMonoBold12pt7b", &FreeMonoBold12pt7b);
#endif
#if defined(U8g2_for_Adafruit_GFX_h)
  showFont("u8g2_font_helvR14_tf", u8g2_font_helvR14_tf); // select u8g2 font from here: https://github.com/olikraus/u8g2/wiki/fntlistall
  delay(2000);
  showFont("u8g2_font_profont22_mr", u8g2_font_profont22_mr); // select u8g2 font from here: https://github.com/olikraus/u8g2/wiki/fntlistall
  delay(2000);
#endif
#if defined(_GxFont_GFX_TFT_eSPI_H_)
  showFreeFont("FreeMonoBold12pt7b", &FreeMonoBold12pt7b);
  delay(2000);
  //showFreeFont("NULL", NULL);
  showTextFont("Font 1", 1, 1);
  delay(2000);
  showTextFont("Font 1", 1, 2);
  delay(2000);
  showTextFont("Font 1", 1, 3);
  delay(2000);
  showTextFont("Font 2", 2, 1);
  delay(2000);
  showTextFont("Font 2", 2, 2);
  delay(2000);
  showTextFont("Font 2", 2, 3);
  delay(2000);
  showTextFont("Font 4", 4, 1);
  delay(2000);
  showTextFont("Font 4", 4, 2);
  delay(2000);
  showTextFont("Font 4", 4, 3);
#endif
#if defined(_ADAFRUIT_TF_GFX_H_)
  showFont("Open_Sans_Bold_12pt", OPENSANSBOLD_12);
#endif
  delay(10000);
}

void showFont(const char name[], const GFXfont* f)
{
  display.fillScreen(GxEPD_WHITE);
  display.setTextColor(GxEPD_BLACK);
  display.setFont(f);
  display.setCursor(0, 0);
  display.println();
  display.println(name);
  display.println(" !\"#$%&'()*+,-./");
  display.println("0123456789:;<=>?");
  display.println("@ABCDEFGHIJKLMNO");
  display.println("PQRSTUVWXYZ[\\]^_");
#if defined(HAS_RED_COLOR)
  display.setTextColor(GxEPD_RED);
#endif
  display.println("`abcdefghijklmno");
  display.println("pqrstuvwxyz{|}~ ");
  display.update();
  delay(5000);
}

#if defined(U8g2_for_Adafruit_GFX_h)
void showFont(const char name[], const uint8_t *f)
{
  display.setRotation(0);
  display.fillScreen(GxEPD_WHITE);
  display.setFontMode(1);                   // use u8g2 transparent mode (this is default)
  display.setFontDirection(0);              // left to right (this is default)
  display.setForegroundColor(GxEPD_BLACK);  // apply Adafruit GFX color
  display.setBackgroundColor(GxEPD_WHITE);  // apply Adafruit GFX color
  display.setFont(f); // select u8g2 font from here: https://github.com/olikraus/u8g2/wiki/fntlistall
  display.setCursor(0, 0);
  display.println();
  display.println(name);
  display.println(" !\"#$%&'()*+,-./");
  display.println("0123456789:;<=>?");
  display.println("@ABCDEFGHIJKLMNO");
  display.println("PQRSTUVWXYZ[\\]^_");
#if defined(HAS_RED_COLOR)
  display.setForegroundColor(GxEPD_RED);
#endif
  display.println("`abcdefghijklmno");
  display.println("pqrstuvwxyz{|}~ ");
  display.println("Umlaut ÄÖÜäéöü");
  display.update();
}
#endif

#if defined(_ADAFRUIT_TF_GFX_H_)
void showFont(const char name[], uint8_t f)
{
  display.setRotation(0);
  display.fillScreen(GxEPD_WHITE);
  display.setTextColor(GxEPD_BLACK);
  display.setFont(f);
  display.setCursor(0, 0);
  display.println();
  display.println(name);
  display.println(" !\"#$%&'()*+,-./");
  display.println("0123456789:;<=>?");
  display.println("@ABCDEFGHIJKLMNO");
  display.println("PQRSTUVWXYZ[\\]^_");
#if defined(HAS_RED_COLOR)
  display.setTextColor(GxEPD_RED);
#endif
  display.println("`abcdefghijklmno");
  display.println("pqrstuvwxyz{|}~ ");
  display.update();
}
#endif

#if defined(_GxFont_GFX_TFT_eSPI_H_)
void showFreeFont(const char name[], const GFXfont* f)
{
  display.setRotation(0);
  display.fillScreen(GxEPD_WHITE);
  display.setTextColor(GxEPD_BLACK);
  display.setFreeFont(f);
  display.setCursor(0, 0);
  display.println();
  display.println(name);
  display.println(" !\"#$%&'()*+,-./");
  display.println("0123456789:;<=>?");
  display.println("@ABCDEFGHIJKLMNO");
  display.println("PQRSTUVWXYZ[\\]^_");
#if defined(HAS_RED_COLOR)
  display.setTextColor(GxEPD_RED);
#endif
  display.println("`abcdefghijklmno");
  display.println("pqrstuvwxyz{|}~ ");
  display.update();
}
void showTextFont(const char name[], uint8_t f, uint8_t size)
{
  display.setRotation(0);
  display.fillScreen(GxEPD_WHITE);
  display.setTextColor(GxEPD_BLACK, GxEPD_WHITE);
  display.setTextFont(f);
  display.setTextSize(size);
  display.setCursor(0, 0);
  display.println();
  display.println(name);
  display.println(" !\"#$%&'()*+,-./");
  display.println("0123456789:;<=>?");
  display.println("@ABCDEFGHIJKLMNO");
  display.println("PQRSTUVWXYZ[\\]^_");
#if defined(HAS_RED_COLOR)
  display.setTextColor(GxEPD_RED);
#endif
  display.println("`abcdefghijklmno");
  display.println("pqrstuvwxyz{|}~ ");
  display.update();
}
#endif