Merge pull request #6877 from thinkyhead/bf_scrolling_status

Scrolling status message (option)

Marlin/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/Marlin_main.cpp

     static bool sd_print_paused = false;
   #endif
 
-  static void filament_change_beep(const int max_beep_count, const bool init=false) {
+  static void filament_change_beep(const int8_t max_beep_count, const bool init=false) {
     static millis_t next_buzz = 0;
-    static uint16_t runout_beep = 0;
+    static int8_t runout_beep = 0;
 
     if (init) next_buzz = runout_beep = 0;
 
     }
   }
 
-  static bool pause_print(const float& retract, const float& z_lift, const float& x_pos, const float& y_pos,
-                          const float& unload_length = 0 , int max_beep_count = 0, bool show_lcd = false) {
+  static bool pause_print(const float &retract, const float &z_lift, const float &x_pos, const float &y_pos,
+                          const float &unload_length = 0 , int8_t max_beep_count = 0, bool show_lcd = false
+  ) {
     if (move_away_flag) return false; // already paused
 
     if (!DEBUGGING(DRYRUN) && thermalManager.tooColdToExtrude(active_extruder) && unload_length > 0) {
       return false;
     }
 
-    const bool job_running = print_job_timer.isRunning();
-
     // Indicate that the printer is paused
     move_away_flag = true;
 
     return true;
   }
 
-  static void wait_for_filament_reload(int max_beep_count = 0) {
+  static void wait_for_filament_reload(int8_t max_beep_count = 0) {
     bool nozzle_timed_out = false;
 
     // Wait for filament insert by user and press button
     KEEPALIVE_STATE(IN_HANDLER);
   }
 
-  static void resume_print(const float& load_length = 0, const float& initial_extrude_length = 0, int max_beep_count = 0) {
+  static void resume_print(const float &load_length = 0, const float &initial_extrude_length = 0, int8_t max_beep_count = 0) {
     bool nozzle_timed_out = false;
 
     if (!move_away_flag) return;

Marlin/SdBaseFile.cpp

 //------------------------------------------------------------------------------
 // suppress cpplint warnings with NOLINT comment
 #if ALLOW_DEPRECATED_FUNCTIONS && !defined(DOXYGEN)
-  void (*SdBaseFile::oldDateTime_)(uint16_t& date, uint16_t& time) = 0;  // NOLINT
+  void (*SdBaseFile::oldDateTime_)(uint16_t &date, uint16_t &time) = 0;  // NOLINT
 #endif  // ALLOW_DEPRECATED_FUNCTIONS
 
 

Marlin/SdBaseFile.h

    * \param[in] dateTime The user's call back function.
    */
   static void dateTimeCallback(
-    void (*dateTime)(uint16_t& date, uint16_t& time)) {  // NOLINT
+    void (*dateTime)(uint16_t &date, uint16_t &time)) {  // NOLINT
     oldDateTime_ = dateTime;
     dateTime_ = dateTime ? oldToNew : 0;
   }
   //------------------------------------------------------------------------------
   // rest are private
  private:
-  static void (*oldDateTime_)(uint16_t& date, uint16_t& time);  // NOLINT
+  static void (*oldDateTime_)(uint16_t &date, uint16_t &time);  // NOLINT
   static void oldToNew(uint16_t* date, uint16_t* time) {
     uint16_t d;
     uint16_t t;

Marlin/example_configurations/Cartesio/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/Felix/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/FolgerTech-i3-2020/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/Hephestos/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 #define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 #define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/K8200/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/K8400/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/RigidBot/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/SCARA/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/TAZ4/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/TinyBoy2/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 #define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/WITBOX/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/generic/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/gCreate_gMax1.5+/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/makibox/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 //#define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/example_configurations/wt150/Configuration_adv.h

 // Include a page of printer information in the LCD Main Menu
 #define LCD_INFO_MENU
 
+// Scroll a longer status message into view
+//#define STATUS_MESSAGE_SCROLLING
+
 // On the Info Screen, display XY with one decimal place when possible
 //#define LCD_DECIMAL_SMALL_XY
 

Marlin/gcode.h

     // Code is found in the string. If not found, value_ptr is unchanged.
     // This allows "if (seen('A')||seen('B'))" to use the last-found value.
     static bool seen(const char c) {
-      char *p = strchr(command_args, c);
+      const char *p = strchr(command_args, c);
       const bool b = !!p;
       if (b) value_ptr = DECIMAL_SIGNED(p[1]) ? &p[1] : NULL;
       return b;

Marlin/planner.cpp

 /**
  * Setters for planner position (also setting stepper position).
  */
-void Planner::set_position_mm(const AxisEnum axis, const float& v) {
+void Planner::set_position_mm(const AxisEnum axis, const float &v) {
   #if ENABLED(DISTINCT_E_FACTORS)
     const uint8_t axis_index = axis + (axis == E_AXIS ? active_extruder : 0);
     last_extruder = active_extruder;

Marlin/temperature.cpp

       Temperature::current_temperature_bed = 0.0;
 int16_t Temperature::current_temperature_raw[HOTENDS] = { 0 },
         Temperature::target_temperature[HOTENDS] = { 0 },
-        Temperature::current_temperature_bed_raw = 0,
-        Temperature::target_temperature_bed = 0;
+        Temperature::current_temperature_bed_raw = 0;
+
+#if HAS_HEATER_BED
+  int16_t Temperature::target_temperature_bed = 0;
+#endif
 
 #if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
   float Temperature::redundant_temperature = 0.0;

Marlin/temperature.h

 
 #define ACTUAL_ADC_SAMPLES max(int(MIN_ADC_ISR_LOOPS), int(SensorsReady))
 
+#if !HAS_HEATER_BED
+  constexpr int16_t target_temperature_bed = 0;
+#endif
+
 class Temperature {
 
   public:
                  current_temperature_bed;
     static int16_t current_temperature_raw[HOTENDS],
                    target_temperature[HOTENDS],
-                   current_temperature_bed_raw,
-                   target_temperature_bed;
+                   current_temperature_bed_raw;
+
+    #if HAS_HEATER_BED
+      static int16_t target_temperature_bed;
+    #endif
 
     static volatile bool in_temp_isr;
 
     }
 
     static void setTargetBed(const int16_t celsius) {
-      target_temperature_bed = celsius;
-      #if WATCH_THE_BED
-        start_watching_bed();
+      #if HAS_HEATER_BED
+        target_temperature_bed =
+          #ifdef BED_MAXTEMP
+            min(celsius, BED_MAXTEMP)
+          #else
+            celsius
+          #endif
+        ;
+        #if WATCH_THE_BED
+          start_watching_bed();
+        #endif
       #endif
     }
 

Marlin/ubl_motion.cpp

       float seg_dest[XYZE];  // per-segment destination, initialize to first segment
       LOOP_XYZE(i) seg_dest[i] = current_position[i] + segment_distance[i];
 
-      const float& dx_seg = segment_distance[X_AXIS];  // alias for clarity
-      const float& dy_seg = segment_distance[Y_AXIS];
+      const float &dx_seg = segment_distance[X_AXIS];  // alias for clarity
+      const float &dy_seg = segment_distance[Y_AXIS];
 
       float rx = RAW_X_POSITION(seg_dest[X_AXIS]),  // assume raw vs logical coordinates shifted but not scaled.
             ry = RAW_Y_POSITION(seg_dest[Y_AXIS]);

Marlin/ultralcd.cpp

 
 uint8_t lcd_status_message_level;
 char lcd_status_message[3 * (LCD_WIDTH) + 1] = WELCOME_MSG; // worst case is kana with up to 3*LCD_WIDTH+1
+#if ENABLED(STATUS_MESSAGE_SCROLLING)
+  uint8_t status_scroll_pos = 0;
+#endif
 
 #if ENABLED(DOGLCD)
   #include "ultralcd_impl_DOGM.h"
   } // ELAPSED(ms, next_lcd_update_ms)
 }
 
-void set_utf_strlen(char* s, uint8_t n) {
-  uint8_t i = 0, j = 0;
-  while (s[i] && (j < n)) {
-    #if ENABLED(MAPPER_NON)
-      j++;
-    #else
-      if ((s[i] & 0xC0u) != 0x80u) j++;
-    #endif
-    i++;
+#if DISABLED(STATUS_MESSAGE_SCROLLING)
+
+  void set_utf_strlen(char* s, uint8_t n) {
+    uint8_t i = 0, j = 0;
+    while (s[i] && (j < n)) {
+      #if ENABLED(MAPPER_NON)
+        j++;
+      #else
+        if ((s[i] & 0xC0u) != 0x80u) j++;
+      #endif
+      i++;
+    }
+    while (j++ < n) s[i++] = ' ';
+    s[i] = '\0';
   }
-  while (j++ < n) s[i++] = ' ';
-  s[i] = '\0';
-}
+
+#endif // !STATUS_MESSAGE_SCROLLING
 
 void lcd_finishstatus(bool persist=false) {
-  set_utf_strlen(lcd_status_message, LCD_WIDTH);
+  #if DISABLED(STATUS_MESSAGE_SCROLLING)
+    set_utf_strlen(lcd_status_message, LCD_WIDTH);
+  #endif
+
   #if !(ENABLED(LCD_PROGRESS_BAR) && (PROGRESS_MSG_EXPIRE > 0))
     UNUSED(persist);
   #endif
   #if ENABLED(FILAMENT_LCD_DISPLAY) && ENABLED(SDSUPPORT)
     previous_lcd_status_ms = millis();  //get status message to show up for a while
   #endif
+
+  #if ENABLED(STATUS_MESSAGE_SCROLLING)
+    status_scroll_pos = 0;
+  #endif
 }
 
 #if ENABLED(LCD_PROGRESS_BAR) && PROGRESS_MSG_EXPIRE > 0

Marlin/ultralcd_impl_DOGM.h

   else return charset_mapper(c);
 }
 
-void lcd_print(const char* const str) {
-  for (uint8_t i = 0; char c = str[i]; ++i) lcd_print(c);
+/**
+ * Core LCD printing functions
+ * On DOGM all strings go through a filter for utf
+ * But only use lcd_print_utf and lcd_printPGM_utf for translated text
+ */
+void lcd_print(const char* const str) { for (uint8_t i = 0; char c = str[i]; ++i) lcd_print(c); }
+void lcd_printPGM(const char* str) { for (; char c = pgm_read_byte(str); ++str) lcd_print(c); }
+
+void lcd_print_utf(const char* const str, const uint8_t maxLength=LCD_WIDTH) {
+  char c;
+  for (uint8_t i = 0, n = maxLength; n && (c = str[i]); ++i)
+    n -= charset_mapper(c);
 }
 
-/* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */
-void lcd_printPGM(const char* str) {
-  for (; char c = pgm_read_byte(str); ++str) lcd_print(c);
+void lcd_printPGM_utf(const char* str, const uint8_t maxLength=LCD_WIDTH) {
+  char c;
+  for (uint8_t i = 0, n = maxLength; n && (c = str[i]); ++i)
+    n -= charset_mapper(c);
 }
 
 // Initialize or re-initialize the LCD
 void lcd_kill_screen() {
   lcd_setFont(FONT_MENU);
   u8g.setPrintPos(0, u8g.getHeight()/4*1);
-  lcd_print(lcd_status_message);
+  lcd_print_utf(lcd_status_message);
   u8g.setPrintPos(0, u8g.getHeight()/4*2);
   lcd_printPGM(PSTR(MSG_HALTED));
   u8g.setPrintPos(0, u8g.getHeight()/4*3);
   }
 }
 
+inline void lcd_implementation_status_message() {
+  #if ENABLED(STATUS_MESSAGE_SCROLLING)
+    lcd_print_utf(lcd_status_message + status_scroll_pos);
+    const uint8_t slen = lcd_strlen(lcd_status_message);
+    if (slen > LCD_WIDTH) {
+      // Skip any non-printing bytes
+      while (!charset_mapper(lcd_status_message[status_scroll_pos])) ++status_scroll_pos;
+      if (++status_scroll_pos > slen - LCD_WIDTH) status_scroll_pos = 0;
+    }
+  #else
+    lcd_print_utf(lcd_status_message);
+  #endif
+}
+
 //#define DOGM_SD_PERCENT
 
 static void lcd_implementation_status_screen() {
 
     #if ENABLED(FILAMENT_LCD_DISPLAY) && ENABLED(SDSUPPORT)
       if (PENDING(millis(), previous_lcd_status_ms + 5000UL)) {  //Display both Status message line and Filament display on the last line
-        const char *str = lcd_status_message;
-        uint8_t i = LCD_WIDTH;
-        char c;
-        while (i-- && (c = *str++)) lcd_print(c);
+        lcd_implementation_status_message();
       }
       else {
         lcd_printPGM(PSTR(LCD_STR_FILAM_DIA));
         u8g.print('%');
       }
     #else
-      const char *str = lcd_status_message;
-      uint8_t i = LCD_WIDTH;
-      char c;
-      while (i-- && (c = *str++)) lcd_print(c);
+      lcd_implementation_status_message();
     #endif
   }
 }

Marlin/ultralcd_impl_HD44780.h

 
 void lcd_implementation_clear() { lcd.clear(); }
 
-/* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */
-void lcd_printPGM(const char *str) {
-  for (; char c = pgm_read_byte(str); ++str) charset_mapper(c);
-}
+void lcd_print(const char c) { charset_mapper(c); }
+
+void lcd_print(const char * const str) { for (uint8_t i = 0; char c = str[i]; ++i) lcd.print(c); }
+void lcd_printPGM(const char* str) { for (; char c = pgm_read_byte(str); ++str) lcd.print(c); }
 
-void lcd_print(const char* const str) {
-  for (uint8_t i = 0; const char c = str[i]; ++i) charset_mapper(c);
+void lcd_print_utf(const char * const str, const uint8_t maxLength=LCD_WIDTH) {
+  char c;
+  for (uint8_t i = 0, n = maxLength; n && (c = str[i]); ++i)
+    n -= charset_mapper(c);
 }
 
-void lcd_print(const char c) { charset_mapper(c); }
+void lcd_printPGM_utf(const char* str, const uint8_t maxLength=LCD_WIDTH) {
+  char c;
+  for (uint8_t i = 0, n = maxLength; n && (c = str[i]); ++i)
+    n -= charset_mapper(c);
+}
 
 #if ENABLED(SHOW_BOOTSCREEN)
 
 
 void lcd_kill_screen() {
   lcd.setCursor(0, 0);
-  lcd_print(lcd_status_message);
+  lcd_print_utf(lcd_status_message);
   #if LCD_HEIGHT < 4
     lcd.setCursor(0, 2);
   #else
 
   #endif // FILAMENT_LCD_DISPLAY && SDSUPPORT
 
-  const char *str = lcd_status_message;
-  uint8_t i = LCD_WIDTH;
-  char c;
-  while (i-- && (c = *str++)) lcd_print(c);
+  #if ENABLED(STATUS_MESSAGE_SCROLLING)
+    lcd_print_utf(lcd_status_message + status_scroll_pos);
+    const uint8_t slen = lcd_strlen(lcd_status_message);
+    if (slen > LCD_WIDTH) {
+      // Skip any non-printing bytes
+      while (!charset_mapper(lcd_status_message[status_scroll_pos])) ++status_scroll_pos;
+      if (++status_scroll_pos > slen - LCD_WIDTH) status_scroll_pos = 0;
+    }
+  #else
+    lcd_print_utf(lcd_status_message);
+  #endif
 }
 
 #if ENABLED(ULTIPANEL)

Marlin/utility.cpp

   #define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-'))
 
   // Convert unsigned int to string with 12 format
-  char* itostr2(const uint8_t& xx) {
+  char* itostr2(const uint8_t &xx) {
     conv[5] = DIGIMOD(xx, 10);
     conv[6] = DIGIMOD(xx, 1);
     return &conv[5];
   }
 
   // Convert signed int to rj string with 123 or -12 format
-  char* itostr3(const int& x) {
+  char* itostr3(const int &x) {
     int xx = x;
     conv[4] = MINUSOR(xx, RJDIGIT(xx, 100));
     conv[5] = RJDIGIT(xx, 10);
   }
 
   // Convert unsigned int to lj string with 123 format
-  char* itostr3left(const int& xx) {
+  char* itostr3left(const int &xx) {
     char *str = &conv[6];
     *str = DIGIMOD(xx, 1);
     if (xx >= 10) {
   }
 
   // Convert signed int to rj string with 1234, _123, -123, _-12, or __-1 format
-  char *itostr4sign(const int& x) {
+  char *itostr4sign(const int &x) {
     const bool neg = x < 0;
     const int xx = neg ? -x : x;
     if (x >= 1000) {
   }
 
   // Convert unsigned float to string with 1.23 format
-  char* ftostr12ns(const float& x) {
+  char* ftostr12ns(const float &x) {
     const long xx = (x < 0 ? -x : x) * 100;
     conv[3] = DIGIMOD(xx, 100);
     conv[4] = '.';
   }
 
   // Convert signed float to fixed-length string with 023.45 / -23.45 format
-  char *ftostr32(const float& x) {
+  char *ftostr32(const float &x) {
     long xx = x * 100;
     conv[1] = MINUSOR(xx, DIGIMOD(xx, 10000));
     conv[2] = DIGIMOD(xx, 1000);
   #if ENABLED(LCD_DECIMAL_SMALL_XY)
 
     // Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format
-    char *ftostr4sign(const float& fx) {
+    char *ftostr4sign(const float &fx) {
       const int x = fx * 10;
       if (!WITHIN(x, -99, 999)) return itostr4sign((int)fx);
       const bool neg = x < 0;
   #endif // LCD_DECIMAL_SMALL_XY
 
   // Convert float to fixed-length string with +123.4 / -123.4 format
-  char* ftostr41sign(const float& x) {
+  char* ftostr41sign(const float &x) {
     int xx = x * 10;
     conv[1] = MINUSOR(xx, '+');
     conv[2] = DIGIMOD(xx, 1000);
   }
 
   // Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
-  char* ftostr43sign(const float& x, char plus/*=' '*/) {
+  char* ftostr43sign(const float &x, char plus/*=' '*/) {
     long xx = x * 1000;
     conv[1] = xx ? MINUSOR(xx, plus) : ' ';
     conv[2] = DIGIMOD(xx, 1000);
   }
 
   // Convert unsigned float to rj string with 12345 format
-  char* ftostr5rj(const float& x) {
+  char* ftostr5rj(const float &x) {
     const long xx = x < 0 ? -x : x;
     conv[2] = RJDIGIT(xx, 10000);
     conv[3] = RJDIGIT(xx, 1000);
   }
 
   // Convert signed float to string with +1234.5 format
-  char* ftostr51sign(const float& x) {
+  char* ftostr51sign(const float &x) {
     long xx = x * 10;
     conv[0] = MINUSOR(xx, '+');
     conv[1] = DIGIMOD(xx, 10000);
   }
 
   // Convert signed float to string with +123.45 format
-  char* ftostr52sign(const float& x) {
+  char* ftostr52sign(const float &x) {
     long xx = x * 100;
     conv[0] = MINUSOR(xx, '+');
     conv[1] = DIGIMOD(xx, 10000);
   }
 
   // Convert unsigned float to string with 1234.56 format omitting trailing zeros
-  char* ftostr62rj(const float& x) {
+  char* ftostr62rj(const float &x) {
     const long xx = (x < 0 ? -x : x) * 100;
     conv[0] = RJDIGIT(xx, 100000);
     conv[1] = RJDIGIT(xx, 10000);
   }
 
   // Convert signed float to space-padded string with -_23.4_ format
-  char* ftostr52sp(const float& x) {
+  char* ftostr52sp(const float &x) {
     long xx = x * 100;
     uint8_t dig;
     conv[1] = MINUSOR(xx, RJDIGIT(xx, 10000));

Marlin/utility.h

 #if ENABLED(ULTRA_LCD)
 
   // Convert unsigned int to string with 12 format
-  char* itostr2(const uint8_t& x);
+  char* itostr2(const uint8_t &x);
 
   // Convert signed int to rj string with 123 or -12 format
-  char* itostr3(const int& x);
+  char* itostr3(const int &x);
 
   // Convert unsigned int to lj string with 123 format
-  char* itostr3left(const int& xx);
+  char* itostr3left(const int &xx);
 
   // Convert signed int to rj string with _123, -123, _-12, or __-1 format
-  char *itostr4sign(const int& x);
+  char *itostr4sign(const int &x);
 
   // Convert unsigned float to string with 1.23 format
-  char* ftostr12ns(const float& x);
+  char* ftostr12ns(const float &x);
 
   // Convert signed float to fixed-length string with 023.45 / -23.45 format
-  char *ftostr32(const float& x);
+  char *ftostr32(const float &x);
 
   // Convert float to fixed-length string with +123.4 / -123.4 format
-  char* ftostr41sign(const float& x);
+  char* ftostr41sign(const float &x);
 
   // Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
-  char* ftostr43sign(const float& x, char plus=' ');
+  char* ftostr43sign(const float &x, char plus=' ');
 
   // Convert unsigned float to rj string with 12345 format
-  char* ftostr5rj(const float& x);
+  char* ftostr5rj(const float &x);
 
   // Convert signed float to string with +1234.5 format
-  char* ftostr51sign(const float& x);
+  char* ftostr51sign(const float &x);
 
   // Convert signed float to space-padded string with -_23.4_ format
-  char* ftostr52sp(const float& x);
+  char* ftostr52sp(const float &x);
 
   // Convert signed float to string with +123.45 format
-  char* ftostr52sign(const float& x);
+  char* ftostr52sign(const float &x);
 
   // Convert unsigned float to string with 1234.56 format omitting trailing zeros
-  char* ftostr62rj(const float& x);
+  char* ftostr62rj(const float &x);
 
   // Convert float to rj string with 123 or -12 format
-  FORCE_INLINE char *ftostr3(const float& x) { return itostr3((int)x); }
+  FORCE_INLINE char *ftostr3(const float &x) { return itostr3((int)x); }
 
   #if ENABLED(LCD_DECIMAL_SMALL_XY)
     // Convert float to rj string with 1234, _123, 12.3, _1.2, -123, _-12, or -1.2 format
-    char *ftostr4sign(const float& fx);
+    char *ftostr4sign(const float &fx);
   #else
     // Convert float to rj string with 1234, _123, -123, __12, _-12, ___1, or __-1 format
-    FORCE_INLINE char *ftostr4sign(const float& x) { return itostr4sign((int)x); }
+    FORCE_INLINE char *ftostr4sign(const float &x) { return itostr4sign((int)x); }
   #endif
 
 #endif // ULTRA_LCD

Marlin/vector_3.h

 };
 
 
-void apply_rotation_xyz(matrix_3x3 rotationMatrix, float& x, float& y, float& z);
+void apply_rotation_xyz(matrix_3x3 rotationMatrix, float &x, float &y, float &z);
 
 #endif // HAS_ABL
 #endif // VECTOR_3_H