dogm_lcd_implementation.h

/**
 * dogm_lcd_implementation.h
 *
 * Graphics LCD implementation for 128x64 pixel LCDs by STB for ErikZalm/Marlin
 * Demonstrator: http://www.reprap.org/wiki/STB_Electronics
 * License: http://opensource.org/licenses/BSD-3-Clause
 *
 * With the use of:
 * u8glib by Oliver Kraus
 * http://code.google.com/p/u8glib/
 * License: http://opensource.org/licenses/BSD-3-Clause
 */

#ifndef DOGM_LCD_IMPLEMENTATION_H
#define DOGM_LCD_IMPLEMENTATION_H

/**
 * Implementation of the LCD display routines for a DOGM128 graphic display. These are common LCD 128x64 pixel graphic displays.
 */

#if ENABLED(ULTIPANEL)
  #define BLEN_A 0
  #define BLEN_B 1
  #define BLEN_C 2
  #define EN_A BIT(BLEN_A)
  #define EN_B BIT(BLEN_B)
  #define EN_C BIT(BLEN_C)
  #define LCD_CLICKED (buttons&EN_C)
#endif

#include <U8glib.h>
#include "dogm_bitmaps.h"

#include "ultralcd.h"
#include "ultralcd_st7920_u8glib_rrd.h"
#include "MarlinFirmware.h"

#if DISABLED(MAPPER_C2C3) && DISABLED(MAPPER_NON) && ENABLED(USE_BIG_EDIT_FONT)
  #undef USE_BIG_EDIT_FONT
#endif


#if ENABLED(USE_SMALL_INFOFONT)
  #include "dogm_font_data_6x9_marlin.h"
  #define FONT_STATUSMENU_NAME u8g_font_6x9
#else
  #define FONT_STATUSMENU_NAME FONT_MENU_NAME
#endif

#include "dogm_font_data_Marlin_symbols.h"   // The Marlin special symbols
#define FONT_SPECIAL_NAME Marlin_symbols

#if DISABLED(SIMULATE_ROMFONT)
  #if ENABLED(DISPLAY_CHARSET_ISO10646_1)
    #include "dogm_font_data_ISO10646_1.h"
    #define FONT_MENU_NAME ISO10646_1_5x7
  #elif ENABLED(DISPLAY_CHARSET_ISO10646_5)
    #include "dogm_font_data_ISO10646_5_Cyrillic.h"
    #define FONT_MENU_NAME ISO10646_5_Cyrillic_5x7
  #elif ENABLED(DISPLAY_CHARSET_ISO10646_KANA)
    #include "dogm_font_data_ISO10646_Kana.h"
    #define FONT_MENU_NAME ISO10646_Kana_5x7
  #elif ENABLED(DISPLAY_CHARSET_ISO10646_CN)
    #include "dogm_font_data_ISO10646_CN.h"
    #define FONT_MENU_NAME ISO10646_CN
    #define TALL_FONT_CORRECTION 1
  #else // fall-back
    #include "dogm_font_data_ISO10646_1.h"
    #define FONT_MENU_NAME ISO10646_1_5x7
  #endif
#else // SIMULATE_ROMFONT
  #if ENABLED(DISPLAY_CHARSET_HD44780_JAPAN)
    #include "dogm_font_data_HD44780_J.h"
    #define FONT_MENU_NAME HD44780_J_5x7
  #elif ENABLED(DISPLAY_CHARSET_HD44780_WESTERN)
    #include "dogm_font_data_HD44780_W.h"
    #define FONT_MENU_NAME HD44780_W_5x7
  #elif ENABLED(DISPLAY_CHARSET_HD44780_CYRILLIC)
    #include "dogm_font_data_HD44780_C.h"
    #define FONT_MENU_NAME HD44780_C_5x7
  #else // fall-back
    #include "dogm_font_data_ISO10646_1.h"
    #define FONT_MENU_NAME ISO10646_1_5x7
  #endif
#endif // SIMULATE_ROMFONT

//#define FONT_STATUSMENU_NAME FONT_MENU_NAME

#define FONT_STATUSMENU 1
#define FONT_SPECIAL 2
#define FONT_MENU_EDIT 3
#define FONT_MENU 4

// DOGM parameters (size in pixels)
#define DOG_CHAR_WIDTH         6
#define DOG_CHAR_HEIGHT        12
#if ENABLED(USE_BIG_EDIT_FONT)
  #define FONT_MENU_EDIT_NAME u8g_font_9x18
  #define DOG_CHAR_WIDTH_EDIT  9
  #define DOG_CHAR_HEIGHT_EDIT 18
  #define LCD_WIDTH_EDIT       14
#else
  #define FONT_MENU_EDIT_NAME FONT_MENU_NAME
  #define DOG_CHAR_WIDTH_EDIT  6
  #define DOG_CHAR_HEIGHT_EDIT 12
  #define LCD_WIDTH_EDIT       22
#endif

#ifndef TALL_FONT_CORRECTION
  #define TALL_FONT_CORRECTION 0
#endif

#define START_ROW              0

// LCD selection
#if ENABLED(U8GLIB_ST7920)
  //U8GLIB_ST7920_128X64_RRD u8g(0,0,0);
  U8GLIB_ST7920_128X64_RRD u8g(0);
#elif ENABLED(MAKRPANEL)
  // The MaKrPanel display, ST7565 controller as well
  U8GLIB_NHD_C12864 u8g(DOGLCD_CS, DOGLCD_A0);
#elif ENABLED(VIKI2) || ENABLED(miniVIKI)
  // Mini Viki and Viki 2.0 LCD, ST7565 controller as well
  U8GLIB_NHD_C12864 u8g(DOGLCD_CS, DOGLCD_A0);
#elif ENABLED(U8GLIB_LM6059_AF)
  // Based on the Adafruit ST7565 (http://www.adafruit.com/products/250)
  U8GLIB_LM6059 u8g(DOGLCD_CS, DOGLCD_A0);
#elif ENABLED(U8GLIB_SSD1306)
  // Generic support for SSD1306 OLED I2C LCDs
  U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE);
#elif ENABLED(MINIPANEL)
  // The MINIPanel display
  U8GLIB_MINI12864 u8g(DOGLCD_CS, DOGLCD_A0);
#else
  // for regular DOGM128 display with HW-SPI
  U8GLIB_DOGM128 u8g(DOGLCD_CS, DOGLCD_A0);  // HW-SPI Com: CS, A0
#endif

#ifndef LCD_PIXEL_WIDTH
  #define LCD_PIXEL_WIDTH 128
#endif
#ifndef LCD_PIXEL_HEIGHT
  #define LCD_PIXEL_HEIGHT 64
#endif

#include "utf_mapper.h"

int lcd_contrast;
static unsigned char blink = 0; // Variable for visualization of fan rotation in GLCD
static char currentfont = 0;

static void lcd_setFont(char font_nr) {
  switch(font_nr) {
    case FONT_STATUSMENU : {u8g.setFont(FONT_STATUSMENU_NAME); currentfont = FONT_STATUSMENU;}; break;
    case FONT_MENU       : {u8g.setFont(FONT_MENU_NAME); currentfont = FONT_MENU;}; break;
    case FONT_SPECIAL    : {u8g.setFont(FONT_SPECIAL_NAME); currentfont = FONT_SPECIAL;}; break;
    case FONT_MENU_EDIT  : {u8g.setFont(FONT_MENU_EDIT_NAME); currentfont = FONT_MENU_EDIT;}; break;
    break;
  }
}

char lcd_print(char c) {
  if ((c > 0) && (c <= LCD_STR_SPECIAL_MAX)) {
    u8g.setFont(FONT_SPECIAL_NAME);
    u8g.print(c);
    lcd_setFont(currentfont);
    return 1;
  } else {
    return charset_mapper(c);
  }
}

char lcd_print(char* str) {
  char c;
  int i = 0;
  char n = 0;
  while ((c = str[i++])) {
    n += lcd_print(c);
  }
  return n;
}

/* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */
char lcd_printPGM(const char* str) {
  char c;
  char n = 0;
  while ((c = pgm_read_byte(str++))) {
    n += lcd_print(c);
  }
  return n;
}

#if ENABLED(SHOW_BOOTSCREEN)
  static bool show_bootscreen = true;
#endif

/* Warning: This function is called from interrupt context */
static void lcd_implementation_init() {

  #if defined(LCD_PIN_BL) && LCD_PIN_BL > -1 // Enable LCD backlight
    pinMode(LCD_PIN_BL, OUTPUT);
    digitalWrite(LCD_PIN_BL, HIGH);
  #endif

  #if defined(LCD_PIN_RESET) && LCD_PIN_RESET > -1
    pinMode(LCD_PIN_RESET, OUTPUT);
    digitalWrite(LCD_PIN_RESET, HIGH);
  #endif

  #if DISABLED(MINIPANEL) // setContrast not working for Mini Panel
    u8g.setContrast(lcd_contrast);
  #endif

  // FIXME: remove this workaround
  // Uncomment this if you have the first generation (V1.10) of STBs board
  // pinMode(17, OUTPUT); // Enable LCD backlight
  // digitalWrite(17, HIGH);

  #if ENABLED(LCD_SCREEN_ROT_90)
    u8g.setRot90();   // Rotate screen by 90°
  #elif ENABLED(LCD_SCREEN_ROT_180)
    u8g.setRot180();  // Rotate screen by 180°
  #elif ENABLED(LCD_SCREEN_ROT_270)
    u8g.setRot270();  // Rotate screen by 270°
  #endif

  #if ENABLED(SHOW_BOOTSCREEN)
    int offx = (u8g.getWidth() - START_BMPWIDTH) / 2;
    #if ENABLED(START_BMPHIGH)
      int offy = 0;
    #else
      int offy = DOG_CHAR_HEIGHT;
    #endif

    int txt1X = (u8g.getWidth() - (sizeof(STRING_SPLASH_LINE1) - 1) * DOG_CHAR_WIDTH) / 2;

    u8g.firstPage();
    do {
      if (show_bootscreen) {
        u8g.drawBitmapP(offx, offy, START_BMPBYTEWIDTH, START_BMPHEIGHT, start_bmp);
        lcd_setFont(FONT_MENU);
        #ifndef STRING_SPLASH_LINE2
          u8g.drawStr(txt1X, u8g.getHeight() - DOG_CHAR_HEIGHT, STRING_SPLASH_LINE1);
        #else
          int txt2X = (u8g.getWidth() - (sizeof(STRING_SPLASH_LINE2) - 1) * DOG_CHAR_WIDTH) / 2;
          u8g.drawStr(txt1X, u8g.getHeight() - DOG_CHAR_HEIGHT * 3 / 2, STRING_SPLASH_LINE1);
          u8g.drawStr(txt2X, u8g.getHeight() - DOG_CHAR_HEIGHT * 1 / 2, STRING_SPLASH_LINE2);
        #endif
      }
    } while (u8g.nextPage());

    if (show_bootscreen) {
      delay(1000);
      show_bootscreen = false;
    }
  #endif
}

static void lcd_implementation_clear() { } // Automatically cleared by Picture Loop

static void _draw_heater_status(int x, int heater) {
  bool isBed = heater < 0;
  int y = 17 + (isBed ? 1 : 0);

  lcd_setFont(FONT_STATUSMENU);
  u8g.setPrintPos(x, 7);
  lcd_print(itostr3(int((heater >= 0 ? degTargetHotend(heater) : degTargetBed()) + 0.5)));
  lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
  u8g.setPrintPos(x, 28);
  lcd_print(itostr3(int(heater >= 0 ? degHotend(heater) : degBed()) + 0.5));

  lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
  if (!isHeatingHotend(0)) {
    u8g.drawBox(x+7,y,2,2);
  }
  else {
    u8g.setColorIndex(0); // white on black
    u8g.drawBox(x + 7, y, 2, 2);
    u8g.setColorIndex(1); // black on white
  }
}

static void lcd_implementation_status_screen() {
  u8g.setColorIndex(1); // black on white

  // Symbols menu graphics, animated fan
  u8g.drawBitmapP(9,1,STATUS_SCREENBYTEWIDTH,STATUS_SCREENHEIGHT, (blink % 2) && fanSpeed ? status_screen0_bmp : status_screen1_bmp);

  #if ENABLED(SDSUPPORT)
    // SD Card Symbol
    u8g.drawBox(42, 42 - TALL_FONT_CORRECTION, 8, 7);
    u8g.drawBox(50, 44 - TALL_FONT_CORRECTION, 2, 5);
    u8g.drawFrame(42, 49 - TALL_FONT_CORRECTION, 10, 4);
    u8g.drawPixel(50, 43 - TALL_FONT_CORRECTION);

    // Progress bar frame
    u8g.drawFrame(54, 49, 73, 4 - TALL_FONT_CORRECTION);

    // SD Card Progress bar and clock
    lcd_setFont(FONT_STATUSMENU);

    if (IS_SD_PRINTING) {
      // Progress bar solid part
      u8g.drawBox(55, 50, (unsigned int)(71.f * card.percentDone() / 100.f), 2 - TALL_FONT_CORRECTION);
    }

    u8g.setPrintPos(80,48);
    if (print_job_start_ms != 0) {
      uint16_t time = (millis() - print_job_start_ms) / 60000;
      lcd_print(itostr2(time/60));
      lcd_print(':');
      lcd_print(itostr2(time%60));
    }
    else {
      lcd_printPGM(PSTR("--:--"));
    }
  #endif

  // Extruders
  for (int i = 0; i < EXTRUDERS; i++) _draw_heater_status(6 + i * 25, i);

  // Heatbed
  if (EXTRUDERS < 4) _draw_heater_status(81, -1);

  // Fan
  lcd_setFont(FONT_STATUSMENU);
  u8g.setPrintPos(104, 27);
  #if HAS_FAN
    int per = ((fanSpeed + 1) * 100) / 256;
    if (per) {
      lcd_print(itostr3(per));
      lcd_print('%');
    }
    else
  #endif
    {
      lcd_printPGM(PSTR("---"));
    }

  // X, Y, Z-Coordinates
  #define XYZ_BASELINE 38
  lcd_setFont(FONT_STATUSMENU);

  #if ENABLED(USE_SMALL_INFOFONT)
    u8g.drawBox(0, 30, LCD_PIXEL_WIDTH, 10);
  #else
    u8g.drawBox(0, 30, LCD_PIXEL_WIDTH, 9);
  #endif
  u8g.setColorIndex(0); // white on black
  u8g.setPrintPos(2, XYZ_BASELINE);
  lcd_print('X');
  u8g.drawPixel(8, XYZ_BASELINE - 5);
  u8g.drawPixel(8, XYZ_BASELINE - 3);
  u8g.setPrintPos(10, XYZ_BASELINE);
  if (axis_known_position[X_AXIS])
    lcd_print(ftostr31ns(current_position[X_AXIS]));
  else
    lcd_printPGM(PSTR("---"));
  u8g.setPrintPos(43, XYZ_BASELINE);
  lcd_print('Y');
  u8g.drawPixel(49, XYZ_BASELINE - 5);
  u8g.drawPixel(49, XYZ_BASELINE - 3);
  u8g.setPrintPos(51, XYZ_BASELINE);
  if (axis_known_position[Y_AXIS])
    lcd_print(ftostr31ns(current_position[Y_AXIS]));
  else
    lcd_printPGM(PSTR("---"));
  u8g.setPrintPos(83, XYZ_BASELINE);
  lcd_print('Z');
  u8g.drawPixel(89, XYZ_BASELINE - 5);
  u8g.drawPixel(89, XYZ_BASELINE - 3);
  u8g.setPrintPos(91, XYZ_BASELINE);
  if (axis_known_position[Z_AXIS])
    lcd_print(ftostr32sp(current_position[Z_AXIS]));
  else
    lcd_printPGM(PSTR("---.--"));
  u8g.setColorIndex(1); // black on white

  // Feedrate
  lcd_setFont(FONT_MENU);
  u8g.setPrintPos(3, 49);
  lcd_print(LCD_STR_FEEDRATE[0]);
  lcd_setFont(FONT_STATUSMENU);
  u8g.setPrintPos(12, 49);
  lcd_print(itostr3(feedrate_multiplier));
  lcd_print('%');

  // Status line
  lcd_setFont(FONT_STATUSMENU);
  #if ENABLED(USE_SMALL_INFOFONT)
    u8g.setPrintPos(0, 62);
  #else
    u8g.setPrintPos(0, 63);
  #endif
  #if DISABLED(FILAMENT_LCD_DISPLAY)
    lcd_print(lcd_status_message);
  #else
    if (millis() < previous_lcd_status_ms + 5000) {  //Display both Status message line and Filament display on the last line
      lcd_print(lcd_status_message);
    }
    else {
      lcd_printPGM(PSTR("dia:"));
      lcd_print(ftostr12ns(filament_width_meas));
      lcd_printPGM(PSTR(" factor:"));
      lcd_print(itostr3(100.0 * volumetric_multiplier[FILAMENT_SENSOR_EXTRUDER_NUM]));
      lcd_print('%');
    }
  #endif
}

static void lcd_implementation_mark_as_selected(uint8_t row, bool isSelected) {
  if (isSelected) {
    u8g.setColorIndex(1);  // black on white
    u8g.drawBox(0, row * DOG_CHAR_HEIGHT + 3 - TALL_FONT_CORRECTION, LCD_PIXEL_WIDTH, DOG_CHAR_HEIGHT);
    u8g.setColorIndex(0);  // following text must be white on black
  }
  else {
    u8g.setColorIndex(1); // unmarked text is black on white
  }
  u8g.setPrintPos(START_ROW * DOG_CHAR_WIDTH, (row + 1) * DOG_CHAR_HEIGHT);
}

static void lcd_implementation_drawmenu_generic(bool isSelected, uint8_t row, const char* pstr, char pre_char, char post_char) {
  char c;
  uint8_t n = LCD_WIDTH - 2;

  lcd_implementation_mark_as_selected(row, isSelected);

  while (c = pgm_read_byte(pstr)) {
    n -= lcd_print(c);
    pstr++;
  }
  while (n--) lcd_print(' ');
  u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH, (row + 1) * DOG_CHAR_HEIGHT);
  lcd_print(post_char);
  lcd_print(' ');
}

static void _drawmenu_setting_edit_generic(bool isSelected, uint8_t row, const char* pstr, const char* data, bool pgm) {
  char c;
  uint8_t vallen = (pgm ? lcd_strlen_P(data) : (lcd_strlen((char*)data)));
  uint8_t n = LCD_WIDTH - 2 - vallen;

  lcd_implementation_mark_as_selected(row, isSelected);

  while (c = pgm_read_byte(pstr)) {
    n -= lcd_print(c);
    pstr++;
  }
  lcd_print(':');
  while (n--) lcd_print(' ');
  u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH * vallen, (row + 1) * DOG_CHAR_HEIGHT);
  if (pgm)  lcd_printPGM(data);  else  lcd_print((char*)data);
}

#define lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, data) _drawmenu_setting_edit_generic(sel, row, pstr, data, false)
#define lcd_implementation_drawmenu_setting_edit_generic_P(sel, row, pstr, data) _drawmenu_setting_edit_generic(sel, row, pstr, data, true)

#define lcd_implementation_drawmenu_setting_edit_int3(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, itostr3(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float3(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr3(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float32(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr32(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float43(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr43(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float5(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr5(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float52(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr52(*(data)))
#define lcd_implementation_drawmenu_setting_edit_float51(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr51(*(data)))
#define lcd_implementation_drawmenu_setting_edit_long5(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr5(*(data)))
#define lcd_implementation_drawmenu_setting_edit_bool(sel, row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(sel, row, pstr, (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))

//Add version for callback functions
#define lcd_implementation_drawmenu_setting_edit_callback_int3(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, itostr3(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float3(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr3(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float32(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr32(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float43(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr43(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float5(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr5(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float52(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr52(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_float51(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr51(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_long5(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, ftostr5(*(data)))
#define lcd_implementation_drawmenu_setting_edit_callback_bool(sel, row, pstr, pstr2, data, callback) lcd_implementation_drawmenu_setting_edit_generic_P(sel, row, pstr, (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))

void lcd_implementation_drawedit(const char* pstr, char* value) {
  uint8_t rows = 1;
  uint8_t lcd_width = LCD_WIDTH, char_width = DOG_CHAR_WIDTH;
  uint8_t vallen = lcd_strlen(value);

  #if ENABLED(USE_BIG_EDIT_FONT)
    if (lcd_strlen_P(pstr) <= LCD_WIDTH_EDIT - 1) {
      lcd_setFont(FONT_MENU_EDIT);
      lcd_width = LCD_WIDTH_EDIT + 1;
      char_width = DOG_CHAR_WIDTH_EDIT;
      if (lcd_strlen_P(pstr) >= LCD_WIDTH_EDIT - vallen) rows = 2;
    }
    else {
      lcd_setFont(FONT_MENU);
    }
  #endif

  if (lcd_strlen_P(pstr) > LCD_WIDTH - 2 - vallen) rows = 2;

  const float kHalfChar = DOG_CHAR_HEIGHT_EDIT / 2;
  float rowHeight = u8g.getHeight() / (rows + 1); // 1/(rows+1) = 1/2 or 1/3

  u8g.setPrintPos(0, rowHeight + kHalfChar);
  lcd_printPGM(pstr);
  lcd_print(':');
  u8g.setPrintPos((lcd_width - 1 - vallen) * char_width, rows * rowHeight + kHalfChar);
  lcd_print(value);
}

#if ENABLED(SDSUPPORT)

  static void _drawmenu_sd(bool isSelected, uint8_t row, const char* pstr, const char* filename, char* const longFilename, bool isDir) {
    char c;
    uint8_t n = LCD_WIDTH - 1;

    if (longFilename[0]) {
      filename = longFilename;
      longFilename[n] = '\0';
    }

    lcd_implementation_mark_as_selected(row, isSelected);

    if (isDir) lcd_print(LCD_STR_FOLDER[0]);
    while ((c = *filename)) {
      n -= lcd_print(c);
      filename++;
    }
    while (n--) lcd_print(' ');
  }

  #define lcd_implementation_drawmenu_sdfile(sel, row, pstr, filename, longFilename) _drawmenu_sd(sel, row, pstr, filename, longFilename, false)
  #define lcd_implementation_drawmenu_sddirectory(sel, row, pstr, filename, longFilename) _drawmenu_sd(sel, row, pstr, filename, longFilename, true)

#endif //SDSUPPORT

#define lcd_implementation_drawmenu_back(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, LCD_STR_UPLEVEL[0], LCD_STR_UPLEVEL[0])
#define lcd_implementation_drawmenu_submenu(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', LCD_STR_ARROW_RIGHT[0])
#define lcd_implementation_drawmenu_gcode(sel, row, pstr, gcode) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', ' ')
#define lcd_implementation_drawmenu_function(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', ' ')

#endif //__DOGM_LCD_IMPLEMENTATION_H