MKS H43 controller (#20609)

Marlin/Configuration.h

@@ -2349,6 +2349,7 @@
 //#define DGUS_LCD_UI_ORIGIN
 //#define DGUS_LCD_UI_FYSETC
 //#define DGUS_LCD_UI_HIPRECY
+//#define DGUS_LCD_UI_MKS
 
 //
 // Touch-screen LCD for Malyan M200/M300 printers

Marlin/Configuration_adv.h

@@ -1517,12 +1517,12 @@
 
   #define DGUS_UPDATE_INTERVAL_MS  500    // (ms) Interval between automatic screen updates
 
-  #if EITHER(DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_HIPRECY)
+  #if ANY(DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_MKS, DGUS_LCD_UI_HIPRECY)
     #define DGUS_PRINT_FILENAME           // Display the filename during printing
     #define DGUS_PREHEAT_UI               // Display a preheat screen during heatup
 
-    #if ENABLED(DGUS_LCD_UI_FYSETC)
+    #if EITHER(DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_MKS)
-      //#define DGUS_UI_MOVE_DIS_OPTION   // Disabled by default for UI_FYSETC
+      //#define DGUS_UI_MOVE_DIS_OPTION   // Disabled by default for FYSETC and MKS
     #else
       #define DGUS_UI_MOVE_DIS_OPTION     // Enabled by default for UI_HIPRECY
     #endif

Marlin/src/HAL/STM32/eeprom_flash.cpp

@@ -48,7 +48,7 @@
   #include "stm32_def.h"
 
   #define DEBUG_OUT ENABLED(EEPROM_CHITCHAT)
-  #include "src/core/debug_out.h"
+  #include "../../core/debug_out.h"
 
   #ifndef MARLIN_EEPROM_SIZE
     #define MARLIN_EEPROM_SIZE    0x1000 // 4KB

Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp

@@ -283,7 +283,7 @@ void CommonHandler_C(ContextStateFrame * frame, unsigned long lr, unsigned long
     savedFrame.CFSR = 0;
 
     frame->pc = (uint32_t)resume_from_fault; // Patch where to return to
-    frame->lr = 0xdeadbeef;  // If our handler returns (it shouldn't), let's make it trigger an exception immediately
+    frame->lr = 0xDEADBEEF;  // If our handler returns (it shouldn't), let's make it trigger an exception immediately
     frame->xpsr = _BV(24);   // Need to clean the PSR register to thumb II only
     MinSerial::force_using_default_output = true;
     return; // The CPU will resume in our handler hopefully, and we'll try to use default serial output

Marlin/src/HAL/shared/eeprom_if_i2c.cpp

@@ -32,7 +32,13 @@
 #include "eeprom_if.h"
 #include <Wire.h>
 
-void eeprom_init() { Wire.begin(); }
+void eeprom_init() {
+  Wire.begin(
+    #if PINS_EXIST(I2C_SCL, I2C_SDA)
+      uint8_t(I2C_SDA_PIN), uint8_t(I2C_SCL_PIN)
+    #endif
+  );
+}
 
 #if ENABLED(USE_SHARED_EEPROM)
 

Marlin/src/MarlinCore.cpp

@@ -231,6 +231,10 @@
   #include "feature/password/password.h"
 #endif
 
+#if ENABLED(DGUS_LCD_UI_MKS)
+  #include "lcd/extui/lib/dgus/DGUSScreenHandler.h"
+#endif
+
 PGMSTR(M112_KILL_STR, "M112 Shutdown");
 
 MarlinState marlin_state = MF_INITIALIZING;
@@ -388,6 +392,7 @@ void startOrResumeJob() {
     if (queue.enqueue_one_P(PSTR("M1001"))) {
       marlin_state = MF_RUNNING;
       TERN_(PASSWORD_AFTER_SD_PRINT_END, password.lock_machine());
+      TERN_(DGUS_LCD_UI_MKS, ScreenHandler.SDPrintingFinished());
     }
   }
 

Marlin/src/gcode/sd/M24_M25.cpp

@@ -41,6 +41,10 @@
   #include "../../feature/powerloss.h"
 #endif
 
+#if ENABLED(DGUS_LCD_UI_MKS)
+  #include "../../lcd/extui/lib/dgus/DGUSDisplayDef.h"
+#endif
+
 #include "../../MarlinCore.h" // for startOrResumeJob
 
 /**
@@ -48,6 +52,11 @@
  */
 void GcodeSuite::M24() {
 
+  #if ENABLED(DGUS_LCD_UI_MKS)
+    if ((print_job_timer.isPaused() || print_job_timer.isRunning()) && !parser.seen("ST"))
+      MKS_resume_print_move();
+  #endif
+
   #if ENABLED(POWER_LOSS_RECOVERY)
     if (parser.seenval('S')) card.setIndex(parser.value_long());
     if (parser.seenval('T')) print_job_timer.resume(parser.value_long());
@@ -98,9 +107,9 @@ void GcodeSuite::M25() {
 
     print_job_timer.pause();
 
-    #if DISABLED(DWIN_CREALITY_LCD)
+    TERN_(DGUS_LCD_UI_MKS, MKS_pause_print_move());
-      ui.reset_status();
+
-    #endif
+    IF_DISABLED(DWIN_CREALITY_LCD, ui.reset_status());
 
     #if ENABLED(HOST_ACTION_COMMANDS)
       TERN_(HOST_PROMPT_SUPPORT, host_prompt_open(PROMPT_PAUSE_RESUME, PSTR("Pause SD"), PSTR("Resume")));

Marlin/src/inc/Conditionals_LCD.h

@@ -451,7 +451,7 @@
 #endif
 
 // Aliases for LCD features
-#if ANY(DGUS_LCD_UI_ORIGIN, DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_HIPRECY)
+#if ANY(DGUS_LCD_UI_ORIGIN, DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_HIPRECY,DGUS_LCD_UI_MKS)
   #define HAS_DGUS_LCD 1
 #endif
 

Marlin/src/inc/SanityCheck.h

@@ -2324,7 +2324,7 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
   + (DISABLED(IS_LEGACY_TFT) && ENABLED(TFT_GENERIC)) \
   + (ENABLED(IS_LEGACY_TFT) && COUNT_ENABLED(TFT_320x240, TFT_320x240_SPI, TFT_480x320, TFT_480x320_SPI)) \
   + COUNT_ENABLED(ANYCUBIC_LCD_I3MEGA, ANYCUBIC_LCD_CHIRON, ANYCUBIC_TFT35) \
-  + COUNT_ENABLED(DGUS_LCD_UI_ORIGIN, DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_HIPRECY) \
+  + COUNT_ENABLED(DGUS_LCD_UI_ORIGIN, DGUS_LCD_UI_FYSETC, DGUS_LCD_UI_HIPRECY,DGUS_LCD_UI_MKS) \
   + COUNT_ENABLED(ENDER2_STOCKDISPLAY, CR10_STOCKDISPLAY, DWIN_CREALITY_LCD) \
   + COUNT_ENABLED(FYSETC_MINI_12864_X_X, FYSETC_MINI_12864_1_2, FYSETC_MINI_12864_2_0, FYSETC_MINI_12864_2_1, FYSETC_GENERIC_12864_1_1) \
   + COUNT_ENABLED(LCD_SAINSMART_I2C_1602, LCD_SAINSMART_I2C_2004) \

Marlin/src/lcd/extui/dgus_lcd.cpp

@@ -21,9 +21,7 @@
  */
 
 /**
- * dgus_lcd.cpp
+ * lcd/extui/dgus_lcd.cpp
- *
- * DGUS implementation for Marlin by coldtobi, Feb-May 2019
  */
 
 #include "../../inc/MarlinConfigPre.h"
@@ -125,11 +123,10 @@ namespace ExtUI {
   #if ENABLED(POWER_LOSS_RECOVERY)
     void onPowerLossResume() {
       // Called on resume from power-loss
-      ScreenHandler.GotoScreen(DGUSLCD_SCREEN_POWER_LOSS);
+      IF_DISABLED(DGUS_LCD_UI_MKS, ScreenHandler.GotoScreen(DGUSLCD_SCREEN_POWER_LOSS));
     }
   #endif
 
-
   #if HAS_PID_HEATING
     void onPidTuning(const result_t rst) {
       // Called for temperature PID tuning result

Marlin/src/lcd/extui/lib/dgus/DGUSDisplay.cpp

@@ -20,14 +20,12 @@
  *
  */
 
-/* DGUS implementation written by coldtobi in 2019 for Marlin */
-
 #include "../../../../inc/MarlinConfigPre.h"
 
 #if HAS_DGUS_LCD
 
 #if HOTENDS > 2
-  #error "More than 2 hotends not implemented on the Display UI design."
+  #warning "More than 2 hotends not implemented on DGUS Display UI."
 #endif
 
 #include "../../ui_api.h"
@@ -46,6 +44,8 @@
 #include "DGUSVPVariable.h"
 #include "DGUSDisplayDef.h"
 
+DGUSDisplay dgusdisplay;
+
 // Preamble... 2 Bytes, usually 0x5A 0xA5, but configurable
 constexpr uint8_t DGUS_HEADER1 = 0x5A;
 constexpr uint8_t DGUS_HEADER2 = 0xA5;
@@ -62,8 +62,10 @@ void DGUSDisplay::InitDisplay() {
     #define LCD_BAUDRATE 115200
   #endif
   LCD_SERIAL.begin(LCD_BAUDRATE);
-  if (TERN1(POWER_LOSS_RECOVERY, !recovery.valid()))
+  #if BOTH(DGUS_LCD_UI_MKS, POWER_LOSS_RECOVERY)
-    RequestScreen(TERN(SHOW_BOOTSCREEN, DGUSLCD_SCREEN_BOOT, DGUSLCD_SCREEN_MAIN));
+    if (!recovery.valid()) delay(LOGO_TIME_DELAY);
+  #endif
+  RequestScreen(TERN(SHOW_BOOTSCREEN, DGUSLCD_SCREEN_BOOT, DGUSLCD_SCREEN_MAIN));
 }
 
 void DGUSDisplay::WriteVariable(uint16_t adr, const void* values, uint8_t valueslen, bool isstr) {
@@ -82,12 +84,12 @@ void DGUSDisplay::WriteVariable(uint16_t adr, const void* values, uint8_t values
 }
 
 void DGUSDisplay::WriteVariable(uint16_t adr, uint16_t value) {
-  value = (value & 0xffU) << 8U | (value >> 8U);
+  value = (value & 0xFFU) << 8U | (value >> 8U);
   WriteVariable(adr, static_cast<const void*>(&value), sizeof(uint16_t));
 }
 
 void DGUSDisplay::WriteVariable(uint16_t adr, int16_t value) {
-  value = (value & 0xffU) << 8U | (value >> 8U);
+  value = (value & 0xFFU) << 8U | (value >> 8U);
   WriteVariable(adr, static_cast<const void*>(&value), sizeof(uint16_t));
 }
 
@@ -99,15 +101,21 @@ void DGUSDisplay::WriteVariable(uint16_t adr, int8_t value) {
   WriteVariable(adr, static_cast<const void*>(&value), sizeof(int8_t));
 }
 
+#if ENABLED(DGUS_LCD_UI_MKS)
+  void DGUSDisplay::MKS_WriteVariable(uint16_t adr, uint8_t value) {
+    WriteVariable(adr, static_cast<const void *>(&value), sizeof(uint8_t));
+  }
+#endif
+
 void DGUSDisplay::WriteVariable(uint16_t adr, long value) {
-    union { long l; char lb[4]; } endian;
+  union { long l; char lb[4]; } endian;
-    char tmp[4];
+  char tmp[4];
-    endian.l = value;
+  endian.l = value;
-    tmp[0] = endian.lb[3];
+  tmp[0] = endian.lb[3];
-    tmp[1] = endian.lb[2];
+  tmp[1] = endian.lb[2];
-    tmp[2] = endian.lb[1];
+  tmp[2] = endian.lb[1];
-    tmp[3] = endian.lb[0];
+  tmp[3] = endian.lb[0];
-    WriteVariable(adr, static_cast<const void*>(&tmp), sizeof(long));
+  WriteVariable(adr, static_cast<const void*>(&tmp), sizeof(long));
 }
 
 void DGUSDisplay::WriteVariablePGM(uint16_t adr, const void* values, uint8_t valueslen, bool isstr) {

Marlin/src/lcd/extui/lib/dgus/DGUSDisplay.h

@@ -21,7 +21,9 @@
  */
 #pragma once
 
-/* DGUS implementation written by coldtobi in 2019 for Marlin */
+/**
+ * lcd/extui/lib/dgus/DGUSDisplay.h
+ */
 
 #include "../../../../inc/MarlinConfigPre.h"
 
@@ -34,6 +36,7 @@
 
 enum DGUSLCD_Screens : uint8_t;
 
+//#define DEBUG_DGUSLCD
 #define DEBUG_OUT ENABLED(DEBUG_DGUSLCD)
 #include "../../../../core/debug_out.h"
 
@@ -60,6 +63,8 @@ public:
   static void WriteVariable(uint16_t adr, uint8_t value);
   static void WriteVariable(uint16_t adr, int8_t value);
   static void WriteVariable(uint16_t adr, long value);
+  static void MKS_WriteVariable(uint16_t adr, uint8_t value);
+
 
   // Utility functions for bridging ui_api and dbus
   template<typename T, float(*Getter)(const T), T selector, typename WireType=uint16_t>

Marlin/src/lcd/extui/lib/dgus/DGUSDisplayDef.h

@@ -21,15 +21,16 @@
  */
 #pragma once
 
-/* DGUS implementation written by coldtobi in 2019 for Marlin */
+/**
+ * lcd/extui/lib/dgus/DGUSDisplayDef.h
+ * Defines the interaction between Marlin and the display firmware
+ */
 
 #include "DGUSVPVariable.h"
 
 #include <stdint.h>
 
-// This file defines the interaction between Marlin and the display firmware.
+// Information on which screen which VP is displayed.
-
-// information on which screen which VP is displayed
 // As this is a sparse table, two arrays are needed:
 // one to list the VPs of one screen and one to map screens to the lists.
 // (Strictly this would not be necessary, but allows to only send data the display needs and reducing load on Marlin)
@@ -47,6 +48,8 @@ extern const struct DGUS_VP_Variable ListOfVP[];
 
 #if ENABLED(DGUS_LCD_UI_ORIGIN)
   #include "origin/DGUSDisplayDef.h"
+#elif ENABLED(DGUS_LCD_UI_MKS)
+  #include "mks/DGUSDisplayDef.h"
 #elif ENABLED(DGUS_LCD_UI_FYSETC)
   #include "fysetc/DGUSDisplayDef.h"
 #elif ENABLED(DGUS_LCD_UI_HIPRECY)

Marlin/src/lcd/extui/lib/dgus/DGUSScreenHandler.cpp

@@ -25,46 +25,42 @@
 #if HAS_DGUS_LCD
 
 #include "DGUSScreenHandler.h"
-#include "DGUSDisplay.h"
-#include "DGUSVPVariable.h"
-#include "DGUSDisplayDef.h"
 
-#include "../../ui_api.h"
 #include "../../../../MarlinCore.h"
+#include "../../../../gcode/queue.h"
+#include "../../../../libs/duration_t.h"
+#include "../../../../module/settings.h"
 #include "../../../../module/temperature.h"
 #include "../../../../module/motion.h"
-#include "../../../../gcode/queue.h"
 #include "../../../../module/planner.h"
-#include "../../../../sd/cardreader.h"
-#include "../../../../libs/duration_t.h"
 #include "../../../../module/printcounter.h"
+#include "../../../../sd/cardreader.h"
 
 #if ENABLED(POWER_LOSS_RECOVERY)
   #include "../../../../feature/powerloss.h"
 #endif
 
+DGUSScreenHandler ScreenHandler;
+
 uint16_t DGUSScreenHandler::ConfirmVP;
 
-#if ENABLED(SDSUPPORT)
-  int16_t DGUSScreenHandler::top_file = 0;
-  int16_t DGUSScreenHandler::file_to_print = 0;
-  static ExtUI::FileList filelist;
-#endif
-
-void (*DGUSScreenHandler::confirm_action_cb)() = nullptr;
-
-//DGUSScreenHandler ScreenHandler;
-
 DGUSLCD_Screens DGUSScreenHandler::current_screen;
 DGUSLCD_Screens DGUSScreenHandler::past_screens[NUM_PAST_SCREENS];
 uint8_t DGUSScreenHandler::update_ptr;
 uint16_t DGUSScreenHandler::skipVP;
 bool DGUSScreenHandler::ScreenComplete;
 
-//DGUSDisplay dgusdisplay;
+void (*DGUSScreenHandler::confirm_action_cb)() = nullptr;
 
-// endianness swap
+#if ENABLED(SDSUPPORT)
-uint16_t swap16(const uint16_t value) { return (value & 0xffU) << 8U | (value >> 8U); }
+  int16_t DGUSScreenHandler::top_file = 0,
+          DGUSScreenHandler::file_to_print = 0;
+  static ExtUI::FileList filelist;
+#endif
+
+#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+  filament_data_t filament_data;
+#endif
 
 void DGUSScreenHandler::sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool l4inflash) {
   DGUS_VP_Variable ramcopy;
@@ -87,14 +83,12 @@ void DGUSScreenHandler::sendinfoscreen(const char* line1, const char* line2, con
 }
 
 void DGUSScreenHandler::HandleUserConfirmationPopUp(uint16_t VP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1, bool l2, bool l3, bool l4) {
-  if (current_screen == DGUSLCD_SCREEN_CONFIRM) {
+  if (current_screen == DGUSLCD_SCREEN_CONFIRM) // Already showing a pop up, so we need to cancel that first.
-    // Already showing a pop up, so we need to cancel that first.
     PopToOldScreen();
-  }
 
   ConfirmVP = VP;
   sendinfoscreen(line1, line2, line3, line4, l1, l2, l3, l4);
-  ScreenHandler.GotoScreen(DGUSLCD_SCREEN_CONFIRM);
+  GotoScreen(DGUSLCD_SCREEN_CONFIRM);
 }
 
 void DGUSScreenHandler::setstatusmessage(const char *msg) {
@@ -130,7 +124,7 @@ void DGUSScreenHandler::DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var) {
   if (var.memadr) {
     //DEBUG_ECHOPAIR(" DGUS_LCD_SendWordValueToDisplay ", var.VP);
     //DEBUG_ECHOLNPAIR(" data ", *(uint16_t *)var.memadr);
-    uint16_t tmp = *(uint8_t *) var.memadr +1 ; // +1 -> avoid rounding issues for the display.
+    uint16_t tmp = *(uint8_t *) var.memadr + 1; // +1 -> avoid rounding issues for the display.
     tmp = map(tmp, 0, 255, 0, 100);
     dgusdisplay.WriteVariable(var.VP, tmp);
   }
@@ -157,7 +151,9 @@ void DGUSScreenHandler::DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var) {
 void DGUSScreenHandler::DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr) {
   if (var.memadr) {
     uint16_t value = swap16(*(uint16_t*)val_ptr);
+    DEBUG_ECHOLNPAIR("FAN value get:", value);
     *(uint8_t*)var.memadr = map(constrain(value, 0, 100), 0, 100, 0, 255);
+    DEBUG_ECHOLNPAIR("FAN value change:", *(uint8_t*)var.memadr);
   }
 }
 
@@ -234,6 +230,7 @@ void DGUSScreenHandler::DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var) {
 
 // Send fan status value to the display.
 #if HAS_FAN
+
   void DGUSScreenHandler::DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var) {
     if (var.memadr) {
       DEBUG_ECHOPAIR(" DGUSLCD_SendFanStatusToDisplay ", var.VP);
@@ -243,6 +240,7 @@ void DGUSScreenHandler::DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var) {
       dgusdisplay.WriteVariable(var.VP, data_to_send);
     }
   }
+
 #endif
 
 // Send heater status value to the display.
@@ -257,6 +255,7 @@ void DGUSScreenHandler::DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var)
 }
 
 #if ENABLED(DGUS_UI_WAITING)
+
   void DGUSScreenHandler::DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var) {
     // In FYSETC UI design there are 10 statuses to loop
     static uint16_t period = 0;
@@ -270,6 +269,7 @@ void DGUSScreenHandler::DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var)
       period = 0;
     }
   }
+
 #endif
 
 #if ENABLED(SDSUPPORT)
@@ -319,7 +319,7 @@ void DGUSScreenHandler::DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var)
       DEBUG_ECHOPAIR("new topfile adjusted:", top_file);
     }
     else if (!filelist.isAtRootDir()) {
-      filelist.upDir();
+      IF_DISABLED(DGUS_LCD_UI_MKS, filelist.upDir());
       top_file = 0;
       ForceCompleteUpdate();
     }
@@ -327,54 +327,6 @@ void DGUSScreenHandler::DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var)
     if (old_top != top_file) ForceCompleteUpdate();
   }
 
-  void DGUSScreenHandler::DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr) {
-    uint16_t touched_nr = (int16_t)swap16(*(uint16_t*)val_ptr) + top_file;
-    if (touched_nr > filelist.count()) return;
-    if (!filelist.seek(touched_nr)) return;
-    if (filelist.isDir()) {
-      filelist.changeDir(filelist.filename());
-      top_file = 0;
-      ForceCompleteUpdate();
-      return;
-    }
-
-    #if ENABLED(DGUS_PRINT_FILENAME)
-      // Send print filename
-      dgusdisplay.WriteVariable(VP_SD_Print_Filename, filelist.filename(), VP_SD_FileName_LEN, true);
-    #endif
-
-    // Setup Confirmation screen
-    file_to_print = touched_nr;
-    HandleUserConfirmationPopUp(VP_SD_FileSelectConfirm, nullptr, PSTR("Print file"), filelist.filename(), PSTR("from SD Card?"), true, true, false, true);
-  }
-
-  void DGUSScreenHandler::DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr) {
-    if (!filelist.seek(file_to_print)) return;
-    ExtUI::printFile(filelist.shortFilename());
-    ScreenHandler.GotoScreen(
-      #if ENABLED(DGUS_LCD_UI_ORIGIN)
-        DGUSLCD_SCREEN_STATUS
-      #else
-        DGUSLCD_SCREEN_SDPRINTMANIPULATION
-      #endif
-    );
-  }
-
-  void DGUSScreenHandler::DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr) {
-    if (!ExtUI::isPrintingFromMedia()) return; // avoid race condition when user stays in this menu and printer finishes.
-    switch (swap16(*(uint16_t*)val_ptr)) {
-      case 0:  // Resume
-        if (ExtUI::isPrintingFromMediaPaused()) ExtUI::resumePrint();
-        break;
-      case 1:  // Pause
-        if (!ExtUI::isPrintingFromMediaPaused()) ExtUI::pausePrint();
-        break;
-      case 2:  // Abort
-        ScreenHandler.HandleUserConfirmationPopUp(VP_SD_AbortPrintConfirmed, nullptr, PSTR("Abort printing"), filelist.filename(), PSTR("?"), true, true, false, true);
-        break;
-    }
-  }
-
   void DGUSScreenHandler::DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr) {
     ExtUI::stopPrint();
     GotoScreen(DGUSLCD_SCREEN_MAIN);
@@ -385,36 +337,11 @@ void DGUSScreenHandler::DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var)
     GotoScreen(DGUSLCD_SCREEN_SDPRINTTUNE);
   }
 
-  void DGUSScreenHandler::DGUSLCD_SD_SendFilename(DGUS_VP_Variable& var) {
-    uint16_t target_line = (var.VP - VP_SD_FileName0) / VP_SD_FileName_LEN;
-    if (target_line > DGUS_SD_FILESPERSCREEN) return;
-    char tmpfilename[VP_SD_FileName_LEN + 1] = "";
-    var.memadr = (void*)tmpfilename;
-    if (filelist.seek(top_file + target_line))
-      snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s%c"), filelist.filename(), filelist.isDir() ? '/' : 0);
-    DGUSLCD_SendStringToDisplay(var);
-  }
-
-  void DGUSScreenHandler::SDCardInserted() {
-    top_file = 0;
-    filelist.refresh();
-    auto cs = ScreenHandler.getCurrentScreen();
-    if (cs == DGUSLCD_SCREEN_MAIN || cs == DGUSLCD_SCREEN_STATUS)
-      ScreenHandler.GotoScreen(DGUSLCD_SCREEN_SDFILELIST);
-  }
-
-  void DGUSScreenHandler::SDCardRemoved() {
-    if (current_screen == DGUSLCD_SCREEN_SDFILELIST
-        || (current_screen == DGUSLCD_SCREEN_CONFIRM && (ConfirmVP == VP_SD_AbortPrintConfirmed || ConfirmVP == VP_SD_FileSelectConfirm))
-        || current_screen == DGUSLCD_SCREEN_SDPRINTMANIPULATION
-    ) ScreenHandler.GotoScreen(DGUSLCD_SCREEN_MAIN);
-  }
-
   void DGUSScreenHandler::SDCardError() {
     DGUSScreenHandler::SDCardRemoved();
-    ScreenHandler.sendinfoscreen(PSTR("NOTICE"), nullptr, PSTR("SD card error"), nullptr, true, true, true, true);
+    sendinfoscreen(PSTR("NOTICE"), nullptr, PSTR("SD card error"), nullptr, true, true, true, true);
-    ScreenHandler.SetupConfirmAction(nullptr);
+    SetupConfirmAction(nullptr);
-    ScreenHandler.GotoScreen(DGUSLCD_SCREEN_POPUP);
+    GotoScreen(DGUSLCD_SCREEN_POPUP);
   }
 
 #endif // SDSUPPORT
@@ -428,7 +355,7 @@ void DGUSScreenHandler::ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr)
 const uint16_t* DGUSLCD_FindScreenVPMapList(uint8_t screen) {
   const uint16_t *ret;
   const struct VPMapping *map = VPMap;
-  while (ret = (uint16_t*) pgm_read_ptr(&(map->VPList))) {
+  while ((ret = (uint16_t*) pgm_read_ptr(&(map->VPList)))) {
     if (pgm_read_byte(&(map->screen)) == screen) return ret;
     map++;
   }
@@ -455,31 +382,9 @@ void DGUSScreenHandler::ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_
   }
 }
 
-void DGUSScreenHandler::ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr) {
-  uint8_t *tmp = (uint8_t*)val_ptr;
-
-  // The keycode in target is coded as <from-frame><to-frame>, so 0x0100A means
-  // from screen 1 (main) to 10 (temperature). DGUSLCD_SCREEN_POPUP is special,
-  // meaning "return to previous screen"
-  DGUSLCD_Screens target = (DGUSLCD_Screens)tmp[1];
-
-  if (target == DGUSLCD_SCREEN_POPUP) {
-    // special handling for popup is to return to previous menu
-    if (current_screen == DGUSLCD_SCREEN_POPUP && confirm_action_cb) confirm_action_cb();
-    PopToOldScreen();
-    return;
-  }
-
-  UpdateNewScreen(target);
-
-  #ifdef DEBUG_DGUSLCD
-    if (!DGUSLCD_FindScreenVPMapList(target)) DEBUG_ECHOLNPAIR("WARNING: No screen Mapping found for ", target);
-  #endif
-}
-
 void DGUSScreenHandler::HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr) {
   thermalManager.disable_all_heaters();
-  ScreenHandler.ForceCompleteUpdate(); // hint to send all data.
+  ForceCompleteUpdate(); // hint to send all data.
 }
 
 void DGUSScreenHandler::HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr) {
@@ -498,7 +403,7 @@ void DGUSScreenHandler::HandleTemperatureChanged(DGUS_VP_Variable &var, void *va
       case VP_T_E1_Set:
         thermalManager.setTargetHotend(newvalue, 1);
         acceptedvalue = thermalManager.temp_hotend[1].target;
-      break;
+        break;
     #endif
     #if HAS_HEATED_BED
       case VP_T_Bed_Set:
@@ -510,7 +415,7 @@ void DGUSScreenHandler::HandleTemperatureChanged(DGUS_VP_Variable &var, void *va
 
   // reply to display the new value to update the view if the new value was rejected by the Thermal Manager.
   if (newvalue != acceptedvalue && var.send_to_display_handler) var.send_to_display_handler(var);
-  ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
 }
 
 void DGUSScreenHandler::HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr) {
@@ -528,7 +433,7 @@ void DGUSScreenHandler::HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_p
     }
 
     planner.set_flow(target_extruder, newvalue);
-    ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+    skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
   #else
     UNUSED(var); UNUSED(val_ptr);
   #endif
@@ -563,97 +468,6 @@ void DGUSScreenHandler::HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr
   }
 #endif
 
-void DGUSScreenHandler::HandleManualMove(DGUS_VP_Variable &var, void *val_ptr) {
-  DEBUG_ECHOLNPGM("HandleManualMove");
-
-  int16_t movevalue = swap16(*(uint16_t*)val_ptr);
-  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
-    if (movevalue) {
-      const uint16_t choice = *(uint16_t*)var.memadr;
-      movevalue = movevalue < 0 ? -choice : choice;
-    }
-  #endif
-  char axiscode;
-  unsigned int speed = 1500;  //FIXME: get default feedrate for manual moves, dont hardcode.
-
-  switch (var.VP) {
-    default: return;
-
-    case VP_MOVE_X:
-      axiscode = 'X';
-      if (!ExtUI::canMove(ExtUI::axis_t::X)) goto cannotmove;
-      break;
-
-    case VP_MOVE_Y:
-      axiscode = 'Y';
-      if (!ExtUI::canMove(ExtUI::axis_t::Y)) goto cannotmove;
-      break;
-
-    case VP_MOVE_Z:
-      axiscode = 'Z';
-      speed = 300; // default to 5mm/s
-      if (!ExtUI::canMove(ExtUI::axis_t::Z)) goto cannotmove;
-      break;
-
-    case VP_HOME_ALL: // only used for homing
-      axiscode = '\0';
-      movevalue = 0; // ignore value sent from display, this VP is _ONLY_ for homing.
-      break;
-  }
-
-  if (!movevalue) {
-    // homing
-    DEBUG_ECHOPAIR(" homing ", axiscode);
-    char buf[6] = "G28 X";
-    buf[4] = axiscode;
-    //DEBUG_ECHOPAIR(" ", buf);
-    queue.enqueue_one_now(buf);
-    //DEBUG_ECHOLNPGM(" ✓");
-    ScreenHandler.ForceCompleteUpdate();
-    return;
-  }
-  else {
-    //movement
-    DEBUG_ECHOPAIR(" move ", axiscode);
-    bool old_relative_mode = relative_mode;
-    if (!relative_mode) {
-      //DEBUG_ECHOPGM(" G91");
-      queue.enqueue_now_P(PSTR("G91"));
-      //DEBUG_ECHOPGM(" ✓ ");
-    }
-    char buf[32];  // G1 X9999.99 F12345
-    unsigned int backup_speed = MMS_TO_MMM(feedrate_mm_s);
-    char sign[]="\0";
-    int16_t value = movevalue / 100;
-    if (movevalue < 0) { value = -value; sign[0] = '-'; }
-    int16_t fraction = ABS(movevalue) % 100;
-    snprintf_P(buf, 32, PSTR("G0 %c%s%d.%02d F%d"), axiscode, sign, value, fraction, speed);
-    //DEBUG_ECHOPAIR(" ", buf);
-    queue.enqueue_one_now(buf);
-    //DEBUG_ECHOLNPGM(" ✓ ");
-    if (backup_speed != speed) {
-      snprintf_P(buf, 32, PSTR("G0 F%d"), backup_speed);
-      queue.enqueue_one_now(buf);
-      //DEBUG_ECHOPAIR(" ", buf);
-    }
-    //while (!enqueue_and_echo_command(buf)) idle();
-    //DEBUG_ECHOLNPGM(" ✓ ");
-    if (!old_relative_mode) {
-      //DEBUG_ECHOPGM("G90");
-      queue.enqueue_now_P(PSTR("G90"));
-      //DEBUG_ECHOPGM(" ✓ ");
-    }
-  }
-
-  ScreenHandler.ForceCompleteUpdate();
-  DEBUG_ECHOLNPGM("manmv done.");
-  return;
-
-  cannotmove:
-  DEBUG_ECHOLNPAIR(" cannot move ", axiscode);
-  return;
-}
-
 void DGUSScreenHandler::HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr) {
   DEBUG_ECHOLNPGM("HandleMotorLockUnlock");
 
@@ -665,22 +479,6 @@ void DGUSScreenHandler::HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_p
   queue.enqueue_one_now(buf);
 }
 
-#if ENABLED(POWER_LOSS_RECOVERY)
-
-  void DGUSScreenHandler::HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr) {
-    uint16_t value = swap16(*(uint16_t*)val_ptr);
-    if (value) {
-      queue.inject_P(PSTR("M1000"));
-      ScreenHandler.GotoScreen(DGUSLCD_SCREEN_SDPRINTMANIPULATION);
-    }
-    else {
-      recovery.cancel();
-      ScreenHandler.GotoScreen(DGUSLCD_SCREEN_STATUS);
-    }
-  }
-
-#endif
-
 void DGUSScreenHandler::HandleSettings(DGUS_VP_Variable &var, void *val_ptr) {
   DEBUG_ECHOLNPGM("HandleSettings");
   uint16_t value = swap16(*(uint16_t*)val_ptr);
@@ -688,10 +486,11 @@ void DGUSScreenHandler::HandleSettings(DGUS_VP_Variable &var, void *val_ptr) {
     default: break;
     case 1:
       TERN_(PRINTCOUNTER, print_job_timer.initStats());
-      queue.inject_P(PSTR("M502\nM500"));
+      settings.reset();
+      settings.save();
       break;
-    case 2: queue.inject_P(PSTR("M501")); break;
+    case 2: settings.load(); break;
-    case 3: queue.inject_P(PSTR("M500")); break;
+    case 3: settings.save(); break;
   }
 }
 
@@ -700,7 +499,7 @@ void DGUSScreenHandler::HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_
 
   uint16_t value_raw = swap16(*(uint16_t*)val_ptr);
   DEBUG_ECHOLNPAIR("value_raw:", value_raw);
-  float value = (float)value_raw/10;
+  float value = (float)value_raw / 10;
   ExtUI::axis_t axis;
   switch (var.VP) {
     case VP_X_STEP_PER_MM: axis = ExtUI::axis_t::X; break;
@@ -711,7 +510,7 @@ void DGUSScreenHandler::HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_
   DEBUG_ECHOLNPAIR_F("value:", value);
   ExtUI::setAxisSteps_per_mm(value, axis);
   DEBUG_ECHOLNPAIR_F("value_set:", ExtUI::getAxisSteps_per_mm(axis));
-  ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
   return;
 }
 
@@ -720,56 +519,24 @@ void DGUSScreenHandler::HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, vo
 
   uint16_t value_raw = swap16(*(uint16_t*)val_ptr);
   DEBUG_ECHOLNPAIR("value_raw:", value_raw);
-  float value = (float)value_raw/10;
+  float value = (float)value_raw / 10;
   ExtUI::extruder_t extruder;
   switch (var.VP) {
     default: return;
-    #if HOTENDS >= 1
+      #if HOTENDS >= 1
-      case VP_E0_STEP_PER_MM: extruder = ExtUI::extruder_t::E0; break;
+        case VP_E0_STEP_PER_MM: extruder = ExtUI::extruder_t::E0; break;
-    #endif
+      #endif
-    #if HOTENDS >= 2
+      #if HOTENDS >= 2
-      case VP_E1_STEP_PER_MM: extruder = ExtUI::extruder_t::E1; break;
+        case VP_E1_STEP_PER_MM: extruder = ExtUI::extruder_t::E1; break;
-    #endif
+      #endif
   }
   DEBUG_ECHOLNPAIR_F("value:", value);
-  ExtUI::setAxisSteps_per_mm(value,extruder);
+  ExtUI::setAxisSteps_per_mm(value, extruder);
   DEBUG_ECHOLNPAIR_F("value_set:", ExtUI::getAxisSteps_per_mm(extruder));
-  ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
-  return;
 }
 
 #if HAS_PID_HEATING
-  void DGUSScreenHandler::HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr) {
-    uint16_t rawvalue = swap16(*(uint16_t*)val_ptr);
-    DEBUG_ECHOLNPAIR("V1:", rawvalue);
-    float value = (float)rawvalue / 10;
-    DEBUG_ECHOLNPAIR("V2:", value);
-    float newvalue = 0;
-
-    switch (var.VP) {
-      default: return;
-      #if HOTENDS >= 1
-        case VP_E0_PID_P: newvalue = value; break;
-        case VP_E0_PID_I: newvalue = scalePID_i(value); break;
-        case VP_E0_PID_D: newvalue = scalePID_d(value); break;
-      #endif
-      #if HOTENDS >= 2
-        case VP_E1_PID_P: newvalue = value; break;
-        case VP_E1_PID_I: newvalue = scalePID_i(value); break;
-        case VP_E1_PID_D: newvalue = scalePID_d(value); break;
-      #endif
-      #if HAS_HEATED_BED
-        case VP_BED_PID_P: newvalue = value; break;
-        case VP_BED_PID_I: newvalue = scalePID_i(value); break;
-        case VP_BED_PID_D: newvalue = scalePID_d(value); break;
-      #endif
-    }
-
-    DEBUG_ECHOLNPAIR_F("V3:", newvalue);
-    *(float *)var.memadr = newvalue;
-    ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
-  }
-
   void DGUSScreenHandler::HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr) {
     DEBUG_ECHOLNPGM("HandlePIDAutotune");
 
@@ -777,23 +544,23 @@ void DGUSScreenHandler::HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, vo
 
     switch (var.VP) {
       default: break;
-      #if ENABLED(PIDTEMP)
+        #if ENABLED(PIDTEMP)
-        #if HOTENDS >= 1
+          #if HOTENDS >= 1
-          case VP_PID_AUTOTUNE_E0: // Autotune Extruder 0
+            case VP_PID_AUTOTUNE_E0: // Autotune Extruder 0
-            sprintf(buf, "M303 E%d C5 S210 U1", ExtUI::extruder_t::E0);
+              sprintf_P(buf, PSTR("M303 E%d C5 S210 U1"), ExtUI::extruder_t::E0);
+              break;
+          #endif
+          #if HOTENDS >= 2
+            case VP_PID_AUTOTUNE_E1:
+              sprintf_P(buf, PSTR("M303 E%d C5 S210 U1"), ExtUI::extruder_t::E1);
+              break;
+          #endif
+        #endif
+        #if ENABLED(PIDTEMPBED)
+          case VP_PID_AUTOTUNE_BED:
+            sprintf_P(buf, PSTR("M303 E-1 C5 S70 U1"));
             break;
         #endif
-        #if HOTENDS >= 2
-          case VP_PID_AUTOTUNE_E1:
-            sprintf(buf, "M303 E%d C5 S210 U1", ExtUI::extruder_t::E1);
-            break;
-        #endif
-      #endif
-      #if ENABLED(PIDTEMPBED)
-        case VP_PID_AUTOTUNE_BED:
-          sprintf(buf, "M303 E-1 C5 S70 U1");
-          break;
-      #endif
     }
 
     if (buf[0]) queue.enqueue_one_now(buf);
@@ -803,7 +570,7 @@ void DGUSScreenHandler::HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, vo
       GotoScreen(DGUSLCD_SCREEN_WAITING);
     #endif
   }
-#endif
+#endif // HAS_PID_HEATING
 
 #if HAS_BED_PROBE
   void DGUSScreenHandler::HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr) {
@@ -811,19 +578,7 @@ void DGUSScreenHandler::HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, vo
 
     const float offset = float(int16_t(swap16(*(uint16_t*)val_ptr))) / 100.0f;
     ExtUI::setZOffset_mm(offset);
-    ScreenHandler.skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+    skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
-    return;
-  }
-#endif
-
-#if ENABLED(BABYSTEPPING)
-  void DGUSScreenHandler::HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr) {
-    DEBUG_ECHOLNPGM("HandleLiveAdjustZ");
-
-    int16_t flag = swap16(*(uint16_t*)val_ptr);
-    int16_t steps = flag ? -20 : 20;
-    ExtUI::smartAdjustAxis_steps(steps, ExtUI::axis_t::Z, true);
-    ScreenHandler.ForceCompleteUpdate();
     return;
   }
 #endif
@@ -849,8 +604,8 @@ void DGUSScreenHandler::HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr
     #if HOTENDS >= 3
       case VP_E2_CONTROL:
     #endif
-      preheat_temp = PREHEAT_1_TEMP_HOTEND;
+    preheat_temp = PREHEAT_1_TEMP_HOTEND;
-      break;
+    break;
 
     case VP_BED_CONTROL:
       preheat_temp = PREHEAT_1_TEMP_BED;
@@ -900,149 +655,49 @@ void DGUSScreenHandler::HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr
 
     switch (var.VP) {
       default: return;
-      #if HOTENDS >= 1
+        #if HOTENDS >= 1
-        case VP_E0_BED_PREHEAT:
+          case VP_E0_BED_PREHEAT:
-          thermalManager.setTargetHotend(e_temp, 0);
+            thermalManager.setTargetHotend(e_temp, 0);
-          TERN_(HAS_HEATED_BED, thermalManager.setTargetBed(bed_temp));
+            TERN_(HAS_HEATED_BED, thermalManager.setTargetBed(bed_temp));
-          break;
+            break;
-      #endif
+        #endif
-      #if HOTENDS >= 2
+        #if HOTENDS >= 2
-        case VP_E1_BED_PREHEAT:
+          case VP_E1_BED_PREHEAT:
-          thermalManager.setTargetHotend(e_temp, 1);
+            thermalManager.setTargetHotend(e_temp, 1);
-          TERN_(HAS_HEATED_BED, thermalManager.setTargetBed(bed_temp));
+            TERN_(HAS_HEATED_BED, thermalManager.setTargetBed(bed_temp));
-        break;
+            break;
-      #endif
+        #endif
     }
 
     // Go to the preheat screen to show the heating progress
     GotoScreen(DGUSLCD_SCREEN_PREHEAT);
   }
 
-#endif
+#endif // DGUS_PREHEAT_UI
 
-#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+#if ENABLED(POWER_LOSS_RECOVERY)
 
-  typedef struct  {
+  void DGUSScreenHandler::HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr) {
-    ExtUI::extruder_t extruder; // which extruder to operate
+    uint16_t value = swap16(*(uint16_t*)val_ptr);
-    uint8_t action; // load or unload
+    if (value) {
-    bool heated; // heating done ?
+      queue.inject_P(PSTR("M1000"));
-    float purge_length; // the length to extrude before unload, prevent filament jam
+      dgusdisplay.WriteVariable(VP_SD_Print_Filename, filelist.filename(), 32, true);
-  } filament_data_t;
+      GotoScreen(PLR_SCREEN_RECOVER);
-
-  static filament_data_t filament_data;
-
-  void DGUSScreenHandler::HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr) {
-    DEBUG_ECHOLNPGM("HandleFilamentOption");
-
-    uint8_t e_temp = 0;
-    filament_data.heated = false;
-    uint16_t preheat_option = swap16(*(uint16_t*)val_ptr);
-    if (preheat_option <= 8)          // Load filament type
-      filament_data.action = 1;
-    else if (preheat_option >= 10) {  // Unload filament type
-      preheat_option -= 10;
-      filament_data.action = 2;
-      filament_data.purge_length = DGUS_FILAMENT_PURGE_LENGTH;
     }
-    else                              // Cancel filament operation
+    else {
-      filament_data.action = 0;
+      recovery.cancel();
-
+      GotoScreen(PLR_SCREEN_CANCEL);
-    switch (preheat_option) {
-      case 0: // Load PLA
-        #ifdef PREHEAT_1_TEMP_HOTEND
-          e_temp = PREHEAT_1_TEMP_HOTEND;
-        #endif
-        break;
-      case 1: // Load ABS
-        TERN_(PREHEAT_2_TEMP_HOTEND, e_temp = PREHEAT_2_TEMP_HOTEND);
-        break;
-      case 2: // Load PET
-        #ifdef PREHEAT_3_TEMP_HOTEND
-          e_temp = PREHEAT_3_TEMP_HOTEND;
-        #endif
-        break;
-      case 3: // Load FLEX
-        #ifdef PREHEAT_4_TEMP_HOTEND
-          e_temp = PREHEAT_4_TEMP_HOTEND;
-        #endif
-        break;
-      case 9: // Cool down
-      default:
-        e_temp = 0;
-        break;
-    }
-
-    if (filament_data.action == 0) { // Go back to utility screen
-      #if HOTENDS >= 1
-        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E0);
-      #endif
-      #if HOTENDS >= 2
-        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E1);
-      #endif
-      GotoScreen(DGUSLCD_SCREEN_UTILITY);
-    }
-    else { // Go to the preheat screen to show the heating progress
-      switch (var.VP) {
-        default: return;
-        #if HOTENDS >= 1
-          case VP_E0_FILAMENT_LOAD_UNLOAD:
-            filament_data.extruder = ExtUI::extruder_t::E0;
-            thermalManager.setTargetHotend(e_temp, filament_data.extruder);
-            break;
-        #endif
-        #if HOTENDS >= 2
-          case VP_E1_FILAMENT_LOAD_UNLOAD:
-            filament_data.extruder = ExtUI::extruder_t::E1;
-            thermalManager.setTargetHotend(e_temp, filament_data.extruder);
-          break;
-        #endif
-      }
-      GotoScreen(DGUSLCD_SCREEN_FILAMENT_HEATING);
     }
   }
 
-  void DGUSScreenHandler::HandleFilamentLoadUnload(DGUS_VP_Variable &var) {
-    DEBUG_ECHOLNPGM("HandleFilamentLoadUnload");
-    if (filament_data.action <= 0) return;
-
-    // If we close to the target temperature, we can start load or unload the filament
-    if (thermalManager.hotEnoughToExtrude(filament_data.extruder) && \
-       thermalManager.targetHotEnoughToExtrude(filament_data.extruder)) {
-      float movevalue = DGUS_FILAMENT_LOAD_LENGTH_PER_TIME;
-
-      if (filament_data.action == 1) { // load filament
-        if (!filament_data.heated) {
-          GotoScreen(DGUSLCD_SCREEN_FILAMENT_LOADING);
-          filament_data.heated = true;
-        }
-        movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder)+movevalue;
-      }
-      else { // unload filament
-        if (!filament_data.heated) {
-          GotoScreen(DGUSLCD_SCREEN_FILAMENT_UNLOADING);
-          filament_data.heated = true;
-        }
-        // Before unloading extrude to prevent jamming
-        if (filament_data.purge_length >= 0) {
-          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
-          filament_data.purge_length -= movevalue;
-        }
-        else
-          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) - movevalue;
-      }
-      ExtUI::setAxisPosition_mm(movevalue, filament_data.extruder);
-    }
-  }
 #endif
 
 void DGUSScreenHandler::UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup) {
   DEBUG_ECHOLNPAIR("SetNewScreen: ", newscreen);
-
   if (!popup) {
     memmove(&past_screens[1], &past_screens[0], sizeof(past_screens) - 1);
     past_screens[0] = current_screen;
   }
-
   current_screen = newscreen;
   skipVP = 0;
   ForceCompleteUpdate();
@@ -1062,7 +717,7 @@ void DGUSScreenHandler::UpdateScreenVPData() {
   if (!VPList) {
     DEBUG_ECHOLNPAIR(" NO SCREEN FOR: ", current_screen);
     ScreenComplete = true;
-    return;  // nothing to do, likely a bug or boring screen.
+    return; // nothing to do, likely a bug or boring screen.
   }
 
   // Round-robin updating of all VPs.
@@ -1076,14 +731,14 @@ void DGUSScreenHandler::UpdateScreenVPData() {
       update_ptr = 0;
       DEBUG_ECHOLNPGM(" UpdateScreenVPData done");
       ScreenComplete = true;
-      return;  // Screen completed.
+      return; // Screen completed.
     }
 
     if (VP == skipVP) { skipVP = 0; continue; }
 
     DGUS_VP_Variable rcpy;
     if (populate_VPVar(VP, &rcpy)) {
-      uint8_t expected_tx = 6 + rcpy.size;  // expected overhead is 6 bytes + payload.
+      uint8_t expected_tx = 6 + rcpy.size; // expected overhead is 6 bytes + payload.
       // Send the VP to the display, but try to avoid overrunning the Tx Buffer.
       // But send at least one VP, to avoid getting stalled.
       if (rcpy.send_to_display_handler && (!sent_one || expected_tx <= dgusdisplay.GetFreeTxBuffer())) {
@@ -1092,11 +747,11 @@ void DGUSScreenHandler::UpdateScreenVPData() {
         rcpy.send_to_display_handler(rcpy);
       }
       else {
-        //auto x=dgusdisplay.GetFreeTxBuffer();
+        // auto x=dgusdisplay.GetFreeTxBuffer();
         //DEBUG_ECHOLNPAIR(" tx almost full: ", x);
         //DEBUG_ECHOPAIR(" update_ptr ", update_ptr);
         ScreenComplete = false;
-        return;  // please call again!
+        return; // please call again!
       }
     }
 
@@ -1108,29 +763,6 @@ void DGUSScreenHandler::GotoScreen(DGUSLCD_Screens screen, bool ispopup) {
   UpdateNewScreen(screen, ispopup);
 }
 
-bool DGUSScreenHandler::loop() {
-  dgusdisplay.loop();
-
-  const millis_t ms = millis();
-  static millis_t next_event_ms = 0;
-
-  if (!IsScreenComplete() || ELAPSED(ms, next_event_ms)) {
-    next_event_ms = ms + DGUS_UPDATE_INTERVAL_MS;
-    UpdateScreenVPData();
-  }
-
-  #if ENABLED(SHOW_BOOTSCREEN)
-    static bool booted = false;
-    if (!booted && TERN0(POWER_LOSS_RECOVERY, recovery.valid()))
-      booted = true;
-    if (!booted && ELAPSED(ms, BOOTSCREEN_TIMEOUT)) {
-      booted = true;
-      GotoScreen(DGUSLCD_SCREEN_MAIN);
-    }
-  #endif
-  return IsScreenComplete();
-}
-
 void DGUSDisplay::RequestScreen(DGUSLCD_Screens screen) {
   DEBUG_ECHOLNPAIR("GotoScreen ", screen);
   const unsigned char gotoscreen[] = { 0x5A, 0x01, (unsigned char) (screen >> 8U), (unsigned char) (screen & 0xFFU) };

Marlin/src/lcd/extui/lib/dgus/DGUSScreenHandler.h

@@ -21,212 +21,38 @@
  */
 #pragma once
 
-#include "DGUSDisplay.h"
+/**
-#include "DGUSVPVariable.h"
+ * lcd/extui/lib/dgus/DGUSScreenHandler.h
+ */
 
-#include "../../../../inc/MarlinConfig.h"
+#include "../../../../inc/MarlinConfigPre.h"
 
-enum DGUSLCD_Screens : uint8_t;
+#include "../../ui_api.h"
 
-class DGUSScreenHandler {
+#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
-public:
-  DGUSScreenHandler() = default;
 
-  static bool loop();
+  typedef struct  {
+    ExtUI::extruder_t extruder; // which extruder to operate
+    uint8_t action; // load or unload
+    bool heated; // heating done ?
+    float purge_length; // the length to extrude before unload, prevent filament jam
+  } filament_data_t;
 
-  /// Send all 4 strings that are displayed on the infoscreen, confirmation screen and kill screen
+  extern filament_data_t filament_data;
-  /// The bools specifing whether the strings are in RAM or FLASH.
-  static void sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
 
-  static void HandleUserConfirmationPopUp(uint16_t ConfirmVP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+#endif
 
-  /// "M117" Message -- msg is a RAM ptr.
+// endianness swap
-  static void setstatusmessage(const char* msg);
+inline uint16_t swap16(const uint16_t value) { return (value & 0xFFU) << 8U | (value >> 8U); }
-  /// The same for messages from Flash
-  static void setstatusmessagePGM(PGM_P const msg);
-  // Callback for VP "Display wants to change screen on idle printer"
-  static void ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_ptr);
-  // Callback for VP "Screen has been changed"
-  static void ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr);
-  // Callback for VP "All Heaters Off"
-  static void HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr);
-  // Hook for "Change this temperature"
-  static void HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr);
-  // Hook for "Change Flowrate"
-  static void HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr);
-  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
-    // Hook for manual move option
-    static void HandleManualMoveOption(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  // Hook for manual move.
-  static void HandleManualMove(DGUS_VP_Variable &var, void *val_ptr);
-  // Hook for manual extrude.
-  static void HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr);
-  // Hook for motor lock and unlook
-  static void HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr);
-  #if ENABLED(POWER_LOSS_RECOVERY)
-    // Hook for power loss recovery.
-    static void HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  // Hook for settings
-  static void HandleSettings(DGUS_VP_Variable &var, void *val_ptr);
-  static void HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_ptr);
-  static void HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, void *val_ptr);
-  #if HAS_PID_HEATING
-    // Hook for "Change this temperature PID para"
-    static void HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr);
-    // Hook for PID autotune
-    static void HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  #if HAS_BED_PROBE
-    // Hook for "Change probe offset z"
-    static void HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  #if ENABLED(BABYSTEPPING)
-    // Hook for live z adjust action
-    static void HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  #if HAS_FAN
-    // Hook for fan control
-    static void HandleFanControl(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  // Hook for heater control
-  static void HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr);
-  #if ENABLED(DGUS_PREHEAT_UI)
-    // Hook for preheat
-    static void HandlePreheat(DGUS_VP_Variable &var, void *val_ptr);
-  #endif
-  #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
-    // Hook for filament load and unload filament option
-    static void HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr);
-    // Hook for filament load and unload
-    static void HandleFilamentLoadUnload(DGUS_VP_Variable &var);
-  #endif
 
-  #if ENABLED(SDSUPPORT)
+#if ENABLED(DGUS_LCD_UI_ORIGIN)
-    // Callback for VP "Display wants to change screen when there is a SD card"
+  #include "origin/DGUSScreenHandler.h"
-    static void ScreenChangeHookIfSD(DGUS_VP_Variable &var, void *val_ptr);
+#elif ENABLED(DGUS_LCD_UI_MKS)
-    /// Scroll buttons on the file listing screen.
+  #include "mks/DGUSScreenHandler.h"
-    static void DGUSLCD_SD_ScrollFilelist(DGUS_VP_Variable &var, void *val_ptr);
+#elif ENABLED(DGUS_LCD_UI_FYSETC)
-    /// File touched.
+  #include "fysetc/DGUSScreenHandler.h"
-    static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+#elif ENABLED(DGUS_LCD_UI_HIPRECY)
-    /// start print after confirmation received.
+  #include "hiprecy/DGUSScreenHandler.h"
-    static void DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr);
+#endif
-    /// User hit the pause, resume or abort button.
-    static void DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr);
-    /// User confirmed the abort action
-    static void DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr);
-    /// User hit the tune button
-    static void DGUSLCD_SD_PrintTune(DGUS_VP_Variable &var, void *val_ptr);
-    /// Send a single filename to the display.
-    static void DGUSLCD_SD_SendFilename(DGUS_VP_Variable &var);
-    /// Marlin informed us that a new SD has been inserted.
-    static void SDCardInserted();
-    /// Marlin informed us that the SD Card has been removed().
-    static void SDCardRemoved();
-    /// Marlin informed us about a bad SD Card.
-    static void SDCardError();
-  #endif
-
-  // OK Button the Confirm screen.
-  static void ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr);
-
-  // Update data after went to new screen (by display or by GotoScreen)
-  // remember: store the last-displayed screen, so it can get returned to.
-  // (e.g for pop up messages)
-  static void UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup=false);
-
-  // Recall the remembered screen.
-  static void PopToOldScreen();
-
-  // Make the display show the screen and update all VPs in it.
-  static void GotoScreen(DGUSLCD_Screens screen, bool ispopup = false);
-
-  static void UpdateScreenVPData();
-
-  // Helpers to convert and transfer data to the display.
-  static void DGUSLCD_SendWordValueToDisplay(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendStringToDisplay(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendPrintProgressToDisplay(DGUS_VP_Variable &var);
-  static void DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var);
-  #if ENABLED(PRINTCOUNTER)
-    static void DGUSLCD_SendPrintAccTimeToDisplay(DGUS_VP_Variable &var);
-    static void DGUSLCD_SendPrintsTotalToDisplay(DGUS_VP_Variable &var);
-  #endif
-  #if HAS_FAN
-    static void DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var);
-  #endif
-  static void DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var);
-  #if ENABLED(DGUS_UI_WAITING)
-    static void DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var);
-  #endif
-
-  /// Send a value from 0..100 to a variable with a range from 0..255
-  static void DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr);
-
-  template<typename T>
-  static void DGUSLCD_SetValueDirectly(DGUS_VP_Variable &var, void *val_ptr) {
-    if (!var.memadr) return;
-    union { unsigned char tmp[sizeof(T)]; T t; } x;
-    unsigned char *ptr = (unsigned char*)val_ptr;
-    LOOP_L_N(i, sizeof(T)) x.tmp[i] = ptr[sizeof(T) - i - 1];
-    *(T*)var.memadr = x.t;
-  }
-
-  /// Send a float value to the display.
-  /// Display will get a 4-byte integer scaled to the number of digits:
-  /// Tell the display the number of digits and it cheats by displaying a dot between...
-  template<unsigned int decimals>
-  static void DGUSLCD_SendFloatAsLongValueToDisplay(DGUS_VP_Variable &var) {
-    if (var.memadr) {
-      float f = *(float *)var.memadr;
-      f *= cpow(10, decimals);
-      dgusdisplay.WriteVariable(var.VP, (long)f);
-    }
-  }
-
-  /// Send a float value to the display.
-  /// Display will get a 2-byte integer scaled to the number of digits:
-  /// Tell the display the number of digits and it cheats by displaying a dot between...
-  template<unsigned int decimals>
-  static void DGUSLCD_SendFloatAsIntValueToDisplay(DGUS_VP_Variable &var) {
-    if (var.memadr) {
-      float f = *(float *)var.memadr;
-      DEBUG_ECHOLNPAIR_F(" >> ", f, 6);
-      f *= cpow(10, decimals);
-      dgusdisplay.WriteVariable(var.VP, (int16_t)f);
-    }
-  }
-
-  /// Force an update of all VP on the current screen.
-  static inline void ForceCompleteUpdate() { update_ptr = 0; ScreenComplete = false; }
-  /// Has all VPs sent to the screen
-  static inline bool IsScreenComplete() { return ScreenComplete; }
-
-  static inline DGUSLCD_Screens getCurrentScreen() { return current_screen; }
-
-  static inline void SetupConfirmAction( void (*f)()) { confirm_action_cb = f; }
-
-private:
-  static DGUSLCD_Screens current_screen;  ///< currently on screen
-  static constexpr uint8_t NUM_PAST_SCREENS = 4;
-  static DGUSLCD_Screens past_screens[NUM_PAST_SCREENS]; ///< LIFO with past screens for the "back" button.
-
-  static uint8_t update_ptr;    ///< Last sent entry in the VPList for the actual screen.
-  static uint16_t skipVP;       ///< When updating the screen data, skip this one, because the user is interacting with it.
-  static bool ScreenComplete;   ///< All VPs sent to screen?
-
-  static uint16_t ConfirmVP;    ///< context for confirm screen (VP that will be emulated-sent on "OK").
-
-  #if ENABLED(SDSUPPORT)
-    static int16_t top_file;    ///< file on top of file chooser
-    static int16_t file_to_print; ///< touched file to be confirmed
-  #endif
-
-  static void (*confirm_action_cb)();
-};
 
 extern DGUSScreenHandler ScreenHandler;

Marlin/src/lcd/extui/lib/dgus/fysetc/DGUSScreenHandler.cpp

@@ -0,0 +1,418 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(DGUS_LCD_UI_FYSETC)
+
+#include "../DGUSScreenHandler.h"
+
+#include "../../../../../MarlinCore.h"
+#include "../../../../../gcode/queue.h"
+#include "../../../../../libs/duration_t.h"
+#include "../../../../../module/settings.h"
+#include "../../../../../module/temperature.h"
+#include "../../../../../module/motion.h"
+#include "../../../../../module/planner.h"
+#include "../../../../../module/printcounter.h"
+#include "../../../../../sd/cardreader.h"
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #include "../../../../feature/powerloss.h"
+#endif
+
+#if ENABLED(SDSUPPORT)
+
+  void DGUSScreenHandler::DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t touched_nr = (int16_t)swap16(*(uint16_t*)val_ptr) + top_file;
+    if (touched_nr > filelist.count()) return;
+    if (!filelist.seek(touched_nr)) return;
+
+    if (filelist.isDir()) {
+      filelist.changeDir(filelist.filename());
+      top_file = 0;
+      ForceCompleteUpdate();
+      return;
+    }
+
+    #if ENABLED(DGUS_PRINT_FILENAME)
+      // Send print filename
+      dgusdisplay.WriteVariable(VP_SD_Print_Filename, filelist.filename(), VP_SD_FileName_LEN, true);
+    #endif
+
+    // Setup Confirmation screen
+    file_to_print = touched_nr;
+
+    HandleUserConfirmationPopUp(VP_SD_FileSelectConfirm, nullptr, PSTR("Print file"), filelist.filename(), PSTR("from SD Card?"), true, true, false, true);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!filelist.seek(file_to_print)) return;
+    ExtUI::printFile(filelist.shortFilename());
+    GotoScreen(DGUSLCD_SCREEN_SDPRINTMANIPULATION);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr) {
+
+    if (!ExtUI::isPrintingFromMedia()) return; // avoid race condition when user stays in this menu and printer finishes.
+    switch (swap16(*(uint16_t*)val_ptr)) {
+      case 0: { // Resume
+        if (ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::resumePrint();
+        }
+      } break;
+
+      case 1: // Pause
+
+        GotoScreen(MKSLCD_SCREEN_PAUSE);
+        if (!ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::pausePrint();
+          //ExtUI::mks_pausePrint();
+        }
+        break;
+      case 2: // Abort
+        HandleUserConfirmationPopUp(VP_SD_AbortPrintConfirmed, nullptr, PSTR("Abort printing"), filelist.filename(), PSTR("?"), true, true, false, true);
+        break;
+    }
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_SendFilename(DGUS_VP_Variable& var) {
+    uint16_t target_line = (var.VP - VP_SD_FileName0) / VP_SD_FileName_LEN;
+    if (target_line > DGUS_SD_FILESPERSCREEN) return;
+    char tmpfilename[VP_SD_FileName_LEN + 1] = "";
+    var.memadr = (void*)tmpfilename;
+
+    if (filelist.seek(top_file + target_line)) {
+      snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s%c"), filelist.filename(), filelist.isDir() ? '/' : 0); // snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s"), filelist.filename());
+    }
+    DGUSLCD_SendStringToDisplay(var);
+  }
+
+  void DGUSScreenHandler::SDCardInserted() {
+    top_file = 0;
+    filelist.refresh();
+    auto cs = getCurrentScreen();
+    if (cs == DGUSLCD_SCREEN_MAIN || cs == DGUSLCD_SCREEN_STATUS)
+      GotoScreen(DGUSLCD_SCREEN_SDFILELIST);
+  }
+
+  void DGUSScreenHandler::SDCardRemoved() {
+    if (current_screen == DGUSLCD_SCREEN_SDFILELIST
+        || (current_screen == DGUSLCD_SCREEN_CONFIRM && (ConfirmVP == VP_SD_AbortPrintConfirmed || ConfirmVP == VP_SD_FileSelectConfirm))
+        || current_screen == DGUSLCD_SCREEN_SDPRINTMANIPULATION
+    ) GotoScreen(DGUSLCD_SCREEN_MAIN);
+  }
+
+#endif // SDSUPPORT
+
+void DGUSScreenHandler::ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr) {
+  uint8_t *tmp = (uint8_t*)val_ptr;
+
+  // The keycode in target is coded as <from-frame><to-frame>, so 0x0100A means
+  // from screen 1 (main) to 10 (temperature). DGUSLCD_SCREEN_POPUP is special,
+  // meaning "return to previous screen"
+  DGUSLCD_Screens target = (DGUSLCD_Screens)tmp[1];
+
+  DEBUG_ECHOLNPAIR("\n DEBUG target", target);
+
+  if (target == DGUSLCD_SCREEN_POPUP) {
+    // Special handling for popup is to return to previous menu
+    if (current_screen == DGUSLCD_SCREEN_POPUP && confirm_action_cb) confirm_action_cb();
+    PopToOldScreen();
+    return;
+  }
+
+  UpdateNewScreen(target);
+
+  #ifdef DEBUG_DGUSLCD
+    if (!DGUSLCD_FindScreenVPMapList(target)) DEBUG_ECHOLNPAIR("WARNING: No screen Mapping found for ", target);
+  #endif
+}
+
+void DGUSScreenHandler::HandleManualMove(DGUS_VP_Variable &var, void *val_ptr) {
+  DEBUG_ECHOLNPGM("HandleManualMove");
+
+  int16_t movevalue = swap16(*(uint16_t*)val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    if (movevalue) {
+      const uint16_t choice = *(uint16_t*)var.memadr;
+      movevalue = movevalue < 0 ? -choice : choice;
+    }
+  #endif
+  char axiscode;
+  unsigned int speed = 1500; // FIXME: get default feedrate for manual moves, dont hardcode.
+
+  switch (var.VP) {
+    default: return;
+
+    case VP_MOVE_X:
+      axiscode = 'X';
+      if (!ExtUI::canMove(ExtUI::axis_t::X)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Y:
+      axiscode = 'Y';
+      if (!ExtUI::canMove(ExtUI::axis_t::Y)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Z:
+      axiscode = 'Z';
+      speed = 300; // default to 5mm/s
+      if (!ExtUI::canMove(ExtUI::axis_t::Z)) goto cannotmove;
+      break;
+
+    case VP_HOME_ALL: // only used for homing
+      axiscode  = '\0';
+      movevalue = 0; // ignore value sent from display, this VP is _ONLY_ for homing.
+      break;
+  }
+
+  if (!movevalue) {
+    // homing
+    DEBUG_ECHOPAIR(" homing ", axiscode);
+    char buf[6] = "G28 X";
+    buf[4] = axiscode;
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓");
+    ForceCompleteUpdate();
+    return;
+  }
+  else {
+    // movement
+    DEBUG_ECHOPAIR(" move ", axiscode);
+    bool old_relative_mode = relative_mode;
+    if (!relative_mode) {
+      //DEBUG_ECHOPGM(" G91");
+      queue.enqueue_now_P(PSTR("G91"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+    char buf[32]; // G1 X9999.99 F12345
+    unsigned int backup_speed = MMS_TO_MMM(feedrate_mm_s);
+    char sign[] = "\0";
+    int16_t value = movevalue / 100;
+    if (movevalue < 0) { value = -value; sign[0] = '-'; }
+    int16_t fraction = ABS(movevalue) % 100;
+    snprintf_P(buf, 32, PSTR("G0 %c%s%d.%02d F%d"), axiscode, sign, value, fraction, speed);
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (backup_speed != speed) {
+      snprintf_P(buf, 32, PSTR("G0 F%d"), backup_speed);
+      queue.enqueue_one_now(buf);
+      //DEBUG_ECHOPAIR(" ", buf);
+    }
+    // while (!enqueue_and_echo_command(buf)) idle();
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (!old_relative_mode) {
+      //DEBUG_ECHOPGM("G90");
+      queue.enqueue_now_P(PSTR("G90"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+  }
+
+  ForceCompleteUpdate();
+  DEBUG_ECHOLNPGM("manmv done.");
+  return;
+
+  cannotmove:
+    DEBUG_ECHOLNPAIR(" cannot move ", axiscode);
+    return;
+}
+
+#if HAS_PID_HEATING
+  void DGUSScreenHandler::HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t rawvalue = swap16(*(uint16_t*)val_ptr);
+    DEBUG_ECHOLNPAIR("V1:", rawvalue);
+    float value = (float)rawvalue / 10;
+    DEBUG_ECHOLNPAIR("V2:", value);
+    float newvalue = 0;
+
+    switch (var.VP) {
+      default: return;
+        #if HOTENDS >= 1
+          case VP_E0_PID_P: newvalue = value; break;
+          case VP_E0_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E0_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HOTENDS >= 2
+          case VP_E1_PID_P: newvalue = value; break;
+          case VP_E1_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E1_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HAS_HEATED_BED
+          case VP_BED_PID_P: newvalue = value; break;
+          case VP_BED_PID_I: newvalue = scalePID_i(value); break;
+          case VP_BED_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+    }
+
+    DEBUG_ECHOLNPAIR_F("V3:", newvalue);
+    *(float *)var.memadr = newvalue;
+
+    skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  }
+#endif // HAS_PID_HEATING
+
+#if ENABLED(BABYSTEPPING)
+  void DGUSScreenHandler::HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleLiveAdjustZ");
+    int16_t flag  = swap16(*(uint16_t*)val_ptr),
+            steps = flag ? -20 : 20;
+    ExtUI::smartAdjustAxis_steps(steps, ExtUI::axis_t::Z, true);
+    ForceCompleteUpdate();
+  }
+#endif
+
+#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+
+  void DGUSScreenHandler::HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleFilamentOption");
+
+    uint8_t e_temp = 0;
+    filament_data.heated = false;
+    uint16_t preheat_option = swap16(*(uint16_t*)val_ptr);
+    if (preheat_option <= 8) {      // Load filament type
+      filament_data.action = 1;
+    }
+    else if (preheat_option >= 10) { // Unload filament type
+      preheat_option -= 10;
+      filament_data.action = 2;
+      filament_data.purge_length = DGUS_FILAMENT_PURGE_LENGTH;
+    }
+    else {                          // Cancel filament operation
+      filament_data.action = 0;
+    }
+
+    switch (preheat_option) {
+      case 0: // Load PLA
+        #ifdef PREHEAT_1_TEMP_HOTEND
+          e_temp = PREHEAT_1_TEMP_HOTEND;
+        #endif
+        break;
+      case 1: // Load ABS
+        TERN_(PREHEAT_2_TEMP_HOTEND, e_temp = PREHEAT_2_TEMP_HOTEND);
+        break;
+      case 2: // Load PET
+        #ifdef PREHEAT_3_TEMP_HOTEND
+          e_temp = PREHEAT_3_TEMP_HOTEND;
+        #endif
+        break;
+      case 3: // Load FLEX
+        #ifdef PREHEAT_4_TEMP_HOTEND
+          e_temp = PREHEAT_4_TEMP_HOTEND;
+        #endif
+        break;
+      case 9: // Cool down
+      default:
+        e_temp = 0;
+        break;
+    }
+
+    if (filament_data.action == 0) { // Go back to utility screen
+      #if HOTENDS >= 1
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E0);
+      #endif
+      #if HOTENDS >= 2
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E1);
+      #endif
+      GotoScreen(DGUSLCD_SCREEN_UTILITY);
+    }
+    else { // Go to the preheat screen to show the heating progress
+      switch (var.VP) {
+        default: return;
+          #if HOTENDS >= 1
+            case VP_E0_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E0;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+          #if HOTENDS >= 2
+            case VP_E1_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E1;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+      }
+      GotoScreen(DGUSLCD_SCREEN_FILAMENT_HEATING);
+    }
+  }
+
+  void DGUSScreenHandler::HandleFilamentLoadUnload(DGUS_VP_Variable &var) {
+    DEBUG_ECHOLNPGM("HandleFilamentLoadUnload");
+    if (filament_data.action <= 0) return;
+
+    // If we close to the target temperature, we can start load or unload the filament
+    if (thermalManager.hotEnoughToExtrude(filament_data.extruder) && \
+        thermalManager.targetHotEnoughToExtrude(filament_data.extruder)) {
+      float movevalue = DGUS_FILAMENT_LOAD_LENGTH_PER_TIME;
+
+      if (filament_data.action == 1) { // load filament
+        if (!filament_data.heated) {
+          //GotoScreen(DGUSLCD_SCREEN_FILAMENT_LOADING);
+          filament_data.heated = true;
+        }
+        movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+      }
+      else { // unload filament
+        if (!filament_data.heated) {
+          GotoScreen(DGUSLCD_SCREEN_FILAMENT_UNLOADING);
+          filament_data.heated = true;
+        }
+        // Before unloading extrude to prevent jamming
+        if (filament_data.purge_length >= 0) {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+          filament_data.purge_length -= movevalue;
+        }
+        else {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) - movevalue;
+        }
+      }
+      ExtUI::setAxisPosition_mm(movevalue, filament_data.extruder);
+    }
+  }
+#endif // DGUS_FILAMENT_LOADUNLOAD
+
+bool DGUSScreenHandler::loop() {
+  dgusdisplay.loop();
+
+  const millis_t ms = millis();
+  static millis_t next_event_ms = 0;
+
+  if (!IsScreenComplete() || ELAPSED(ms, next_event_ms)) {
+    next_event_ms = ms + DGUS_UPDATE_INTERVAL_MS;
+    UpdateScreenVPData();
+  }
+
+  #if ENABLED(SHOW_BOOTSCREEN)
+    static bool booted = false;
+
+    if (!booted && TERN0(POWER_LOSS_RECOVERY, recovery.valid()))
+      booted = true;
+
+    if (!booted && ELAPSED(ms, TERN(USE_MKS_GREEN_UI, 1000, BOOTSCREEN_TIMEOUT)))
+      booted = true;
+  #endif
+  return IsScreenComplete();
+}
+
+#endif // DGUS_LCD_UI_FYSETC

Marlin/src/lcd/extui/lib/dgus/fysetc/DGUSScreenHandler.h

@@ -0,0 +1,240 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../DGUSDisplay.h"
+#include "../DGUSVPVariable.h"
+#include "../DGUSDisplayDef.h"
+
+#include "../../../../../inc/MarlinConfig.h"
+
+enum DGUSLCD_Screens : uint8_t;
+
+class DGUSScreenHandler {
+public:
+  DGUSScreenHandler() = default;
+
+  static bool loop();
+
+  // Send all 4 strings that are displayed on the infoscreen, confirmation screen and kill screen
+  // The bools specifing whether the strings are in RAM or FLASH.
+  static void sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  static void HandleUserConfirmationPopUp(uint16_t ConfirmVP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  // "M117" Message -- msg is a RAM ptr.
+  static void setstatusmessage(const char* msg);
+  // The same for messages from Flash
+  static void setstatusmessagePGM(PGM_P const msg);
+  // Callback for VP "Display wants to change screen on idle printer"
+  static void ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_ptr);
+  // Callback for VP "Screen has been changed"
+  static void ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Callback for VP "All Heaters Off"
+  static void HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change this temperature"
+  static void HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change Flowrate"
+  static void HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    // Hook for manual move option
+    static void HandleManualMoveOption(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+
+  // Hook for manual move.
+  static void HandleManualMove(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for manual extrude.
+  static void HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for motor lock and unlook
+  static void HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    // Hook for power loss recovery.
+    static void HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for settings
+  static void HandleSettings(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, void *val_ptr);
+
+  #if HAS_PID_HEATING
+    // Hook for "Change this temperature PID para"
+    static void HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for PID autotune
+    static void HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_BED_PROBE
+    // Hook for "Change probe offset z"
+    static void HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(BABYSTEPPING)
+    // Hook for live z adjust action
+    static void HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_FAN
+    // Hook for fan control
+    static void HandleFanControl(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for heater control
+  static void HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_PREHEAT_UI)
+    // Hook for preheat
+    static void HandlePreheat(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+    // Hook for filament load and unload filament option
+    static void HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for filament load and unload
+    static void HandleFilamentLoadUnload(DGUS_VP_Variable &var);
+  #endif
+
+  #if ENABLED(SDSUPPORT)
+    // Callback for VP "Display wants to change screen when there is a SD card"
+    static void ScreenChangeHookIfSD(DGUS_VP_Variable &var, void *val_ptr);
+    // Scroll buttons on the file listing screen.
+    static void DGUSLCD_SD_ScrollFilelist(DGUS_VP_Variable &var, void *val_ptr);
+    // File touched.
+    static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+    // start print after confirmation received.
+    static void DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the pause, resume or abort button.
+    static void DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User confirmed the abort action
+    static void DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the tune button
+    static void DGUSLCD_SD_PrintTune(DGUS_VP_Variable &var, void *val_ptr);
+    // Send a single filename to the display.
+    static void DGUSLCD_SD_SendFilename(DGUS_VP_Variable &var);
+    // Marlin informed us that a new SD has been inserted.
+    static void SDCardInserted();
+    // Marlin informed us that the SD Card has been removed().
+    static void SDCardRemoved();
+    // Marlin informed us about a bad SD Card.
+    static void SDCardError();
+  #endif
+
+  // OK Button the Confirm screen.
+  static void ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Update data after went to new screen (by display or by GotoScreen)
+  // remember: store the last-displayed screen, so it can get returned to.
+  // (e.g for pop up messages)
+  static void UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup=false);
+
+  // Recall the remembered screen.
+  static void PopToOldScreen();
+
+  // Make the display show the screen and update all VPs in it.
+  static void GotoScreen(DGUSLCD_Screens screen, bool ispopup = false);
+
+  static void UpdateScreenVPData();
+
+  // Helpers to convert and transfer data to the display.
+  static void DGUSLCD_SendWordValueToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintProgressToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var);
+
+  #if ENABLED(PRINTCOUNTER)
+    static void DGUSLCD_SendPrintAccTimeToDisplay(DGUS_VP_Variable &var);
+    static void DGUSLCD_SendPrintsTotalToDisplay(DGUS_VP_Variable &var);
+  #endif
+  #if HAS_FAN
+    static void DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+  static void DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var);
+  #if ENABLED(DGUS_UI_WAITING)
+    static void DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+
+  // Send a value from 0..100 to a variable with a range from 0..255
+  static void DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr);
+
+  template<typename T>
+  static void DGUSLCD_SetValueDirectly(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!var.memadr) return;
+    union { unsigned char tmp[sizeof(T)]; T t; } x;
+    unsigned char *ptr = (unsigned char*)val_ptr;
+    LOOP_L_N(i, sizeof(T)) x.tmp[i] = ptr[sizeof(T) - i - 1];
+    *(T*)var.memadr = x.t;
+  }
+
+  // Send a float value to the display.
+  // Display will get a 4-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsLongValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (long)f);
+    }
+  }
+
+  // Send a float value to the display.
+  // Display will get a 2-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsIntValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      DEBUG_ECHOLNPAIR_F(" >> ", f, 6);
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (int16_t)f);
+    }
+  }
+
+  // Force an update of all VP on the current screen.
+  static inline void ForceCompleteUpdate() { update_ptr = 0; ScreenComplete = false; }
+  // Has all VPs sent to the screen
+  static inline bool IsScreenComplete() { return ScreenComplete; }
+
+  static inline DGUSLCD_Screens getCurrentScreen() { return current_screen; }
+
+  static inline void SetupConfirmAction( void (*f)()) { confirm_action_cb = f; }
+
+private:
+  static DGUSLCD_Screens current_screen;  //< currently on screen
+  static constexpr uint8_t NUM_PAST_SCREENS = 4;
+  static DGUSLCD_Screens past_screens[NUM_PAST_SCREENS]; //< LIFO with past screens for the "back" button.
+
+  static uint8_t update_ptr;      //< Last sent entry in the VPList for the actual screen.
+  static uint16_t skipVP;         //< When updating the screen data, skip this one, because the user is interacting with it.
+  static bool ScreenComplete;     //< All VPs sent to screen?
+
+  static uint16_t ConfirmVP;      //< context for confirm screen (VP that will be emulated-sent on "OK").
+
+  #if ENABLED(SDSUPPORT)
+    static int16_t top_file;      //< file on top of file chooser
+    static int16_t file_to_print; //< touched file to be confirmed
+  #endif
+
+  static void (*confirm_action_cb)();
+};
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #define PLR_SCREEN_RECOVER DGUSLCD_SCREEN_SDPRINTMANIPULATION
+  #define PLR_SCREEN_CANCEL DGUSLCD_SCREEN_STATUS
+#endif

Marlin/src/lcd/extui/lib/dgus/hiprecy/DGUSScreenHandler.cpp

@@ -0,0 +1,418 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(DGUS_LCD_UI_HYPRECY)
+
+#include "../DGUSScreenHandler.h"
+
+#include "../../../../../MarlinCore.h"
+#include "../../../../../gcode/queue.h"
+#include "../../../../../libs/duration_t.h"
+#include "../../../../../module/settings.h"
+#include "../../../../../module/temperature.h"
+#include "../../../../../module/motion.h"
+#include "../../../../../module/planner.h"
+#include "../../../../../module/printcounter.h"
+#include "../../../../../sd/cardreader.h"
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #include "../../../../feature/powerloss.h"
+#endif
+
+#if ENABLED(SDSUPPORT)
+
+  void DGUSScreenHandler::DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t touched_nr = (int16_t)swap16(*(uint16_t*)val_ptr) + top_file;
+    if (touched_nr > filelist.count()) return;
+    if (!filelist.seek(touched_nr)) return;
+
+    if (filelist.isDir()) {
+      filelist.changeDir(filelist.filename());
+      top_file = 0;
+      ForceCompleteUpdate();
+      return;
+    }
+
+    #if ENABLED(DGUS_PRINT_FILENAME)
+      // Send print filename
+      dgusdisplay.WriteVariable(VP_SD_Print_Filename, filelist.filename(), VP_SD_FileName_LEN, true);
+    #endif
+
+    // Setup Confirmation screen
+    file_to_print = touched_nr;
+
+    HandleUserConfirmationPopUp(VP_SD_FileSelectConfirm, nullptr, PSTR("Print file"), filelist.filename(), PSTR("from SD Card?"), true, true, false, true);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!filelist.seek(file_to_print)) return;
+    ExtUI::printFile(filelist.shortFilename());
+    GotoScreen(DGUSLCD_SCREEN_SDPRINTMANIPULATION);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr) {
+
+    if (!ExtUI::isPrintingFromMedia()) return; // avoid race condition when user stays in this menu and printer finishes.
+    switch (swap16(*(uint16_t*)val_ptr)) {
+      case 0: { // Resume
+        if (ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::resumePrint();
+        }
+      } break;
+
+      case 1: // Pause
+
+        GotoScreen(MKSLCD_SCREEN_PAUSE);
+        if (!ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::pausePrint();
+          //ExtUI::mks_pausePrint();
+        }
+        break;
+      case 2: // Abort
+        HandleUserConfirmationPopUp(VP_SD_AbortPrintConfirmed, nullptr, PSTR("Abort printing"), filelist.filename(), PSTR("?"), true, true, false, true);
+        break;
+    }
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_SendFilename(DGUS_VP_Variable& var) {
+    uint16_t target_line = (var.VP - VP_SD_FileName0) / VP_SD_FileName_LEN;
+    if (target_line > DGUS_SD_FILESPERSCREEN) return;
+    char tmpfilename[VP_SD_FileName_LEN + 1] = "";
+    var.memadr = (void*)tmpfilename;
+
+    if (filelist.seek(top_file + target_line)) {
+      snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s%c"), filelist.filename(), filelist.isDir() ? '/' : 0); // snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s"), filelist.filename());
+    }
+    DGUSLCD_SendStringToDisplay(var);
+  }
+
+  void DGUSScreenHandler::SDCardInserted() {
+    top_file = 0;
+    filelist.refresh();
+    auto cs = getCurrentScreen();
+    if (cs == DGUSLCD_SCREEN_MAIN || cs == DGUSLCD_SCREEN_STATUS)
+      GotoScreen(DGUSLCD_SCREEN_SDFILELIST);
+  }
+
+  void DGUSScreenHandler::SDCardRemoved() {
+    if (current_screen == DGUSLCD_SCREEN_SDFILELIST
+        || (current_screen == DGUSLCD_SCREEN_CONFIRM && (ConfirmVP == VP_SD_AbortPrintConfirmed || ConfirmVP == VP_SD_FileSelectConfirm))
+        || current_screen == DGUSLCD_SCREEN_SDPRINTMANIPULATION
+    ) GotoScreen(DGUSLCD_SCREEN_MAIN);
+  }
+
+#endif // SDSUPPORT
+
+void DGUSScreenHandler::ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr) {
+  uint8_t *tmp = (uint8_t*)val_ptr;
+
+  // The keycode in target is coded as <from-frame><to-frame>, so 0x0100A means
+  // from screen 1 (main) to 10 (temperature). DGUSLCD_SCREEN_POPUP is special,
+  // meaning "return to previous screen"
+  DGUSLCD_Screens target = (DGUSLCD_Screens)tmp[1];
+
+  DEBUG_ECHOLNPAIR("\n DEBUG target", target);
+
+  if (target == DGUSLCD_SCREEN_POPUP) {
+    // Special handling for popup is to return to previous menu
+    if (current_screen == DGUSLCD_SCREEN_POPUP && confirm_action_cb) confirm_action_cb();
+    PopToOldScreen();
+    return;
+  }
+
+  UpdateNewScreen(target);
+
+  #ifdef DEBUG_DGUSLCD
+    if (!DGUSLCD_FindScreenVPMapList(target)) DEBUG_ECHOLNPAIR("WARNING: No screen Mapping found for ", target);
+  #endif
+}
+
+void DGUSScreenHandler::HandleManualMove(DGUS_VP_Variable &var, void *val_ptr) {
+  DEBUG_ECHOLNPGM("HandleManualMove");
+
+  int16_t movevalue = swap16(*(uint16_t*)val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    if (movevalue) {
+      const uint16_t choice = *(uint16_t*)var.memadr;
+      movevalue = movevalue < 0 ? -choice : choice;
+    }
+  #endif
+  char axiscode;
+  unsigned int speed = 1500; // FIXME: get default feedrate for manual moves, dont hardcode.
+
+  switch (var.VP) {
+    default: return;
+
+    case VP_MOVE_X:
+      axiscode = 'X';
+      if (!ExtUI::canMove(ExtUI::axis_t::X)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Y:
+      axiscode = 'Y';
+      if (!ExtUI::canMove(ExtUI::axis_t::Y)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Z:
+      axiscode = 'Z';
+      speed = 300; // default to 5mm/s
+      if (!ExtUI::canMove(ExtUI::axis_t::Z)) goto cannotmove;
+      break;
+
+    case VP_HOME_ALL: // only used for homing
+      axiscode  = '\0';
+      movevalue = 0; // ignore value sent from display, this VP is _ONLY_ for homing.
+      break;
+  }
+
+  if (!movevalue) {
+    // homing
+    DEBUG_ECHOPAIR(" homing ", axiscode);
+    char buf[6] = "G28 X";
+    buf[4] = axiscode;
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓");
+    ForceCompleteUpdate();
+    return;
+  }
+  else {
+    // movement
+    DEBUG_ECHOPAIR(" move ", axiscode);
+    bool old_relative_mode = relative_mode;
+    if (!relative_mode) {
+      //DEBUG_ECHOPGM(" G91");
+      queue.enqueue_now_P(PSTR("G91"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+    char buf[32]; // G1 X9999.99 F12345
+    unsigned int backup_speed = MMS_TO_MMM(feedrate_mm_s);
+    char sign[] = "\0";
+    int16_t value = movevalue / 100;
+    if (movevalue < 0) { value = -value; sign[0] = '-'; }
+    int16_t fraction = ABS(movevalue) % 100;
+    snprintf_P(buf, 32, PSTR("G0 %c%s%d.%02d F%d"), axiscode, sign, value, fraction, speed);
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (backup_speed != speed) {
+      snprintf_P(buf, 32, PSTR("G0 F%d"), backup_speed);
+      queue.enqueue_one_now(buf);
+      //DEBUG_ECHOPAIR(" ", buf);
+    }
+    // while (!enqueue_and_echo_command(buf)) idle();
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (!old_relative_mode) {
+      //DEBUG_ECHOPGM("G90");
+      queue.enqueue_now_P(PSTR("G90"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+  }
+
+  ForceCompleteUpdate();
+  DEBUG_ECHOLNPGM("manmv done.");
+  return;
+
+  cannotmove:
+    DEBUG_ECHOLNPAIR(" cannot move ", axiscode);
+    return;
+}
+
+#if HAS_PID_HEATING
+  void DGUSScreenHandler::HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t rawvalue = swap16(*(uint16_t*)val_ptr);
+    DEBUG_ECHOLNPAIR("V1:", rawvalue);
+    float value = (float)rawvalue / 10;
+    DEBUG_ECHOLNPAIR("V2:", value);
+    float newvalue = 0;
+
+    switch (var.VP) {
+      default: return;
+        #if HOTENDS >= 1
+          case VP_E0_PID_P: newvalue = value; break;
+          case VP_E0_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E0_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HOTENDS >= 2
+          case VP_E1_PID_P: newvalue = value; break;
+          case VP_E1_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E1_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HAS_HEATED_BED
+          case VP_BED_PID_P: newvalue = value; break;
+          case VP_BED_PID_I: newvalue = scalePID_i(value); break;
+          case VP_BED_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+    }
+
+    DEBUG_ECHOLNPAIR_F("V3:", newvalue);
+    *(float *)var.memadr = newvalue;
+
+    skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  }
+#endif // HAS_PID_HEATING
+
+#if ENABLED(BABYSTEPPING)
+  void DGUSScreenHandler::HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleLiveAdjustZ");
+    int16_t flag  = swap16(*(uint16_t*)val_ptr),
+            steps = flag ? -20 : 20;
+    ExtUI::smartAdjustAxis_steps(steps, ExtUI::axis_t::Z, true);
+    ForceCompleteUpdate();
+  }
+#endif
+
+#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+
+  void DGUSScreenHandler::HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleFilamentOption");
+
+    uint8_t e_temp = 0;
+    filament_data.heated = false;
+    uint16_t preheat_option = swap16(*(uint16_t*)val_ptr);
+    if (preheat_option <= 8) {      // Load filament type
+      filament_data.action = 1;
+    }
+    else if (preheat_option >= 10) { // Unload filament type
+      preheat_option -= 10;
+      filament_data.action = 2;
+      filament_data.purge_length = DGUS_FILAMENT_PURGE_LENGTH;
+    }
+    else {                          // Cancel filament operation
+      filament_data.action = 0;
+    }
+
+    switch (preheat_option) {
+      case 0: // Load PLA
+        #ifdef PREHEAT_1_TEMP_HOTEND
+          e_temp = PREHEAT_1_TEMP_HOTEND;
+        #endif
+        break;
+      case 1: // Load ABS
+        TERN_(PREHEAT_2_TEMP_HOTEND, e_temp = PREHEAT_2_TEMP_HOTEND);
+        break;
+      case 2: // Load PET
+        #ifdef PREHEAT_3_TEMP_HOTEND
+          e_temp = PREHEAT_3_TEMP_HOTEND;
+        #endif
+        break;
+      case 3: // Load FLEX
+        #ifdef PREHEAT_4_TEMP_HOTEND
+          e_temp = PREHEAT_4_TEMP_HOTEND;
+        #endif
+        break;
+      case 9: // Cool down
+      default:
+        e_temp = 0;
+        break;
+    }
+
+    if (filament_data.action == 0) { // Go back to utility screen
+      #if HOTENDS >= 1
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E0);
+      #endif
+      #if HOTENDS >= 2
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E1);
+      #endif
+      GotoScreen(DGUSLCD_SCREEN_UTILITY);
+    }
+    else { // Go to the preheat screen to show the heating progress
+      switch (var.VP) {
+        default: return;
+          #if HOTENDS >= 1
+            case VP_E0_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E0;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+          #if HOTENDS >= 2
+            case VP_E1_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E1;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+      }
+      GotoScreen(DGUSLCD_SCREEN_FILAMENT_HEATING);
+    }
+  }
+
+  void DGUSScreenHandler::HandleFilamentLoadUnload(DGUS_VP_Variable &var) {
+    DEBUG_ECHOLNPGM("HandleFilamentLoadUnload");
+    if (filament_data.action <= 0) return;
+
+    // If we close to the target temperature, we can start load or unload the filament
+    if (thermalManager.hotEnoughToExtrude(filament_data.extruder) && \
+        thermalManager.targetHotEnoughToExtrude(filament_data.extruder)) {
+      float movevalue = DGUS_FILAMENT_LOAD_LENGTH_PER_TIME;
+
+      if (filament_data.action == 1) { // load filament
+        if (!filament_data.heated) {
+          //GotoScreen(DGUSLCD_SCREEN_FILAMENT_LOADING);
+          filament_data.heated = true;
+        }
+        movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+      }
+      else { // unload filament
+        if (!filament_data.heated) {
+          GotoScreen(DGUSLCD_SCREEN_FILAMENT_UNLOADING);
+          filament_data.heated = true;
+        }
+        // Before unloading extrude to prevent jamming
+        if (filament_data.purge_length >= 0) {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+          filament_data.purge_length -= movevalue;
+        }
+        else {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) - movevalue;
+        }
+      }
+      ExtUI::setAxisPosition_mm(movevalue, filament_data.extruder);
+    }
+  }
+#endif // DGUS_FILAMENT_LOADUNLOAD
+
+bool DGUSScreenHandler::loop() {
+  dgusdisplay.loop();
+
+  const millis_t ms = millis();
+  static millis_t next_event_ms = 0;
+
+  if (!IsScreenComplete() || ELAPSED(ms, next_event_ms)) {
+    next_event_ms = ms + DGUS_UPDATE_INTERVAL_MS;
+    UpdateScreenVPData();
+  }
+
+  #if ENABLED(SHOW_BOOTSCREEN)
+    static bool booted = false;
+
+    if (!booted && TERN0(POWER_LOSS_RECOVERY, recovery.valid()))
+      booted = true;
+
+    if (!booted && ELAPSED(ms, TERN(USE_MKS_GREEN_UI, 1000, BOOTSCREEN_TIMEOUT)))
+      booted = true;
+  #endif
+  return IsScreenComplete();
+}
+
+#endif // DGUS_LCD_UI_HYPRECY

Marlin/src/lcd/extui/lib/dgus/hiprecy/DGUSScreenHandler.h

@@ -0,0 +1,240 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../DGUSDisplay.h"
+#include "../DGUSVPVariable.h"
+#include "../DGUSDisplayDef.h"
+
+#include "../../../../../inc/MarlinConfig.h"
+
+enum DGUSLCD_Screens : uint8_t;
+
+class DGUSScreenHandler {
+public:
+  DGUSScreenHandler() = default;
+
+  static bool loop();
+
+  // Send all 4 strings that are displayed on the infoscreen, confirmation screen and kill screen
+  // The bools specifing whether the strings are in RAM or FLASH.
+  static void sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  static void HandleUserConfirmationPopUp(uint16_t ConfirmVP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  // "M117" Message -- msg is a RAM ptr.
+  static void setstatusmessage(const char* msg);
+  // The same for messages from Flash
+  static void setstatusmessagePGM(PGM_P const msg);
+  // Callback for VP "Display wants to change screen on idle printer"
+  static void ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_ptr);
+  // Callback for VP "Screen has been changed"
+  static void ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Callback for VP "All Heaters Off"
+  static void HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change this temperature"
+  static void HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change Flowrate"
+  static void HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    // Hook for manual move option
+    static void HandleManualMoveOption(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+
+  // Hook for manual move.
+  static void HandleManualMove(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for manual extrude.
+  static void HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for motor lock and unlook
+  static void HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    // Hook for power loss recovery.
+    static void HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for settings
+  static void HandleSettings(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, void *val_ptr);
+
+  #if HAS_PID_HEATING
+    // Hook for "Change this temperature PID para"
+    static void HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for PID autotune
+    static void HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_BED_PROBE
+    // Hook for "Change probe offset z"
+    static void HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(BABYSTEPPING)
+    // Hook for live z adjust action
+    static void HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_FAN
+    // Hook for fan control
+    static void HandleFanControl(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for heater control
+  static void HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_PREHEAT_UI)
+    // Hook for preheat
+    static void HandlePreheat(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+    // Hook for filament load and unload filament option
+    static void HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for filament load and unload
+    static void HandleFilamentLoadUnload(DGUS_VP_Variable &var);
+  #endif
+
+  #if ENABLED(SDSUPPORT)
+    // Callback for VP "Display wants to change screen when there is a SD card"
+    static void ScreenChangeHookIfSD(DGUS_VP_Variable &var, void *val_ptr);
+    // Scroll buttons on the file listing screen.
+    static void DGUSLCD_SD_ScrollFilelist(DGUS_VP_Variable &var, void *val_ptr);
+    // File touched.
+    static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+    // start print after confirmation received.
+    static void DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the pause, resume or abort button.
+    static void DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User confirmed the abort action
+    static void DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the tune button
+    static void DGUSLCD_SD_PrintTune(DGUS_VP_Variable &var, void *val_ptr);
+    // Send a single filename to the display.
+    static void DGUSLCD_SD_SendFilename(DGUS_VP_Variable &var);
+    // Marlin informed us that a new SD has been inserted.
+    static void SDCardInserted();
+    // Marlin informed us that the SD Card has been removed().
+    static void SDCardRemoved();
+    // Marlin informed us about a bad SD Card.
+    static void SDCardError();
+  #endif
+
+  // OK Button the Confirm screen.
+  static void ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Update data after went to new screen (by display or by GotoScreen)
+  // remember: store the last-displayed screen, so it can get returned to.
+  // (e.g for pop up messages)
+  static void UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup=false);
+
+  // Recall the remembered screen.
+  static void PopToOldScreen();
+
+  // Make the display show the screen and update all VPs in it.
+  static void GotoScreen(DGUSLCD_Screens screen, bool ispopup = false);
+
+  static void UpdateScreenVPData();
+
+  // Helpers to convert and transfer data to the display.
+  static void DGUSLCD_SendWordValueToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintProgressToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var);
+
+  #if ENABLED(PRINTCOUNTER)
+    static void DGUSLCD_SendPrintAccTimeToDisplay(DGUS_VP_Variable &var);
+    static void DGUSLCD_SendPrintsTotalToDisplay(DGUS_VP_Variable &var);
+  #endif
+  #if HAS_FAN
+    static void DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+  static void DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var);
+  #if ENABLED(DGUS_UI_WAITING)
+    static void DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+
+  // Send a value from 0..100 to a variable with a range from 0..255
+  static void DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr);
+
+  template<typename T>
+  static void DGUSLCD_SetValueDirectly(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!var.memadr) return;
+    union { unsigned char tmp[sizeof(T)]; T t; } x;
+    unsigned char *ptr = (unsigned char*)val_ptr;
+    LOOP_L_N(i, sizeof(T)) x.tmp[i] = ptr[sizeof(T) - i - 1];
+    *(T*)var.memadr = x.t;
+  }
+
+  // Send a float value to the display.
+  // Display will get a 4-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsLongValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (long)f);
+    }
+  }
+
+  // Send a float value to the display.
+  // Display will get a 2-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsIntValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      DEBUG_ECHOLNPAIR_F(" >> ", f, 6);
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (int16_t)f);
+    }
+  }
+
+  // Force an update of all VP on the current screen.
+  static inline void ForceCompleteUpdate() { update_ptr = 0; ScreenComplete = false; }
+  // Has all VPs sent to the screen
+  static inline bool IsScreenComplete() { return ScreenComplete; }
+
+  static inline DGUSLCD_Screens getCurrentScreen() { return current_screen; }
+
+  static inline void SetupConfirmAction( void (*f)()) { confirm_action_cb = f; }
+
+private:
+  static DGUSLCD_Screens current_screen;  //< currently on screen
+  static constexpr uint8_t NUM_PAST_SCREENS = 4;
+  static DGUSLCD_Screens past_screens[NUM_PAST_SCREENS]; //< LIFO with past screens for the "back" button.
+
+  static uint8_t update_ptr;      //< Last sent entry in the VPList for the actual screen.
+  static uint16_t skipVP;         //< When updating the screen data, skip this one, because the user is interacting with it.
+  static bool ScreenComplete;     //< All VPs sent to screen?
+
+  static uint16_t ConfirmVP;      //< context for confirm screen (VP that will be emulated-sent on "OK").
+
+  #if ENABLED(SDSUPPORT)
+    static int16_t top_file;      //< file on top of file chooser
+    static int16_t file_to_print; //< touched file to be confirmed
+  #endif
+
+  static void (*confirm_action_cb)();
+};
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #define PLR_SCREEN_RECOVER DGUSLCD_SCREEN_SDPRINTMANIPULATION
+  #define PLR_SCREEN_CANCEL DGUSLCD_SCREEN_STATUS
+#endif

Marlin/src/lcd/extui/lib/dgus/mks/DGUSDisplayDef.cpp

@@ -0,0 +1,795 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(DGUS_LCD_UI_MKS)
+
+#include "DGUSDisplayDef.h"
+#include "../DGUSDisplay.h"
+#include "../DGUSScreenHandler.h"
+
+#include "../../../../../module/temperature.h"
+#include "../../../../../module/motion.h"
+#include "../../../../../module/planner.h"
+
+#include "../../../ui_api.h"
+#include "../../../../marlinui.h"
+
+#if ENABLED(HAS_STEALTHCHOP)
+  #include "../../../../module/stepper/trinamic.h"
+#endif
+
+#if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+  uint16_t distanceToMove = 10;
+#endif
+
+uint16_t distanceMove = 1;
+float distanceFilament = 10;
+uint16_t FilamentSpeed = 25;
+float ZOffset_distance = 0.1;
+float mesh_adj_distance = 0.1;
+float Z_distance = 0.1;
+
+int16_t level_1_x_point = 20;
+int16_t level_1_y_point = 20;
+
+int16_t level_2_x_point = 20;
+int16_t level_2_y_point = 20;
+
+int16_t level_3_x_point = 20;
+int16_t level_3_y_point = 20;
+
+int16_t level_4_x_point = 20;
+int16_t level_4_y_point = 20;
+int16_t level_5_x_point = X_MAX_POS / 2;
+int16_t level_5_y_point = Y_MAX_POS / 2;
+
+uint16_t tim_h;
+uint16_t tim_m;
+uint16_t tim_s;
+
+uint16_t x_park_pos = 20;
+uint16_t y_park_pos = 20;
+uint16_t z_park_pos = 10;
+
+xyz_pos_t position_before_pause;
+
+void MKS_pause_print_move() {
+  planner.synchronize();
+  position_before_pause = current_position;
+  do_blocking_move_to(X_MIN_POS + x_park_pos, Y_MIN_POS + y_park_pos, current_position.z + z_park_pos);
+}
+
+void MKS_resume_print_move() { do_blocking_move_to(position_before_pause); }
+
+uint16_t min_ex_temp = 0;
+
+float z_offset_add = 0;
+
+#if ENABLED(SENSORLESS_HOMING)
+  uint16_t tmc_x_step = 0;
+  uint16_t tmc_y_step = 0;
+  uint16_t tmc_z_step = 0;
+#else
+  uint16_t tmc_x_step = 0;
+  uint16_t tmc_y_step = 0;
+  uint16_t tmc_z_step = 0;
+#endif
+
+uint16_t lcd_default_light = 50;
+
+EX_FILAMENT_DEF ex_filament;
+RUNOUT_MKS_DEF runout_mks;
+NOZZLE_PARK_DEF nozzle_park_mks;
+
+const uint16_t VPList_Boot[] PROGMEM = {
+  VP_MARLIN_VERSION,
+  0x0000
+};
+
+#define MKSLIST_E_ITEM(N) VP_T_E##N##_Is, VP_T_E##N##_Set,
+
+const uint16_t VPList_Main[] PROGMEM = {
+  // VP_M117, for completeness, but it cannot be auto-uploaded.
+  #if HOTENDS >= 1
+    MKSLIST_E_ITEM(0) VP_E0_STATUS,
+  #endif
+  #if HOTENDS >= 2
+    MKSLIST_E_ITEM(1)
+  #endif
+  #if HAS_HEATED_BED
+    VP_T_Bed_Is, VP_T_Bed_Set, VP_BED_STATUS,
+  #endif
+  #if HAS_FAN
+    VP_Fan0_Percentage, VP_FAN0_STATUS,
+  #endif
+  VP_XPos, VP_YPos, VP_ZPos,
+  VP_Fan0_Percentage,
+  VP_Feedrate_Percentage,
+  #if ENABLED(LCD_SET_PROGRESS_MANUALLY)
+    VP_PrintProgress_Percentage,
+  #endif
+  0x0000
+};
+
+const uint16_t MKSList_Home[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+  // Language
+  // VP_HOME_Dis,
+
+  0x0000
+};
+
+const uint16_t MKSList_Setting[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+  // Language
+  VP_Setting_Dis,
+  0x0000
+};
+
+const uint16_t MKSList_Tool[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+  // Language
+  VP_Tool_Dis,
+  // LCD BLK
+  VP_LCD_BLK,
+  0x0000
+};
+
+const uint16_t MKSList_EXTRUE[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  VP_Filament_distance,
+  VP_Filament_speed,
+
+  0x0000
+};
+
+const uint16_t MKSList_LEVEL[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  0x0000
+};
+
+const uint16_t MKSList_MOVE[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  0x0000
+};
+
+const uint16_t MKSList_Print[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+  // Print Percent
+  VP_PrintProgress_Percentage,
+
+  VP_PrintTime,
+
+  VP_Flowrate_E0,
+  VP_Flowrate_E1,
+  VP_Feedrate_Percentage,
+
+  VP_PrintTime_H,
+  VP_PrintTime_M,
+  VP_PrintTime_S,
+
+  VP_XPos,
+  VP_YPos,
+  VP_ZPos,
+
+  0x0000
+};
+
+const uint16_t MKSList_SD_File[] PROGMEM = {
+  VP_SD_FileName0, VP_SD_FileName1,
+  VP_SD_FileName2, VP_SD_FileName3,
+  VP_SD_FileName4, VP_SD_FileName5,
+  VP_SD_FileName6, VP_SD_FileName7,
+  VP_SD_FileName8, VP_SD_FileName9,
+
+  0x0000
+};
+
+const uint16_t MKSList_TempOnly[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+  // LCD BLK
+  VP_LCD_BLK,
+  0x0000
+};
+
+const uint16_t MKSList_Pluse[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  // Pluse
+  VP_X_STEP_PER_MM,
+  VP_Y_STEP_PER_MM,
+  VP_Z_STEP_PER_MM,
+  VP_E0_STEP_PER_MM,
+  VP_E1_STEP_PER_MM,
+
+  0x0000
+};
+
+const uint16_t MKSList_MaxSpeed[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  // Pluse
+  VP_X_MAX_SPEED,
+  VP_Y_MAX_SPEED,
+  VP_Z_MAX_SPEED,
+  VP_E0_MAX_SPEED,
+  VP_E1_MAX_SPEED,
+
+  0x0000
+};
+
+const uint16_t MKSList_MaxAcc[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  // ACC
+  VP_ACC_SPEED,
+  VP_X_ACC_MAX_SPEED,
+  VP_Y_ACC_MAX_SPEED,
+  VP_Z_ACC_MAX_SPEED,
+  VP_E0_ACC_MAX_SPEED,
+  VP_E1_ACC_MAX_SPEED,
+
+  0x0000
+};
+
+const uint16_t MKSList_PID[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  // PID
+  VP_E0_PID_P,
+  VP_E0_PID_I,
+  VP_E0_PID_D,
+
+  0x0000
+};
+
+const uint16_t MKSList_Level_Point[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  // FAN
+  VP_Fan0_Percentage,
+
+  // Level Point
+  VP_Level_Point_One_X,
+  VP_Level_Point_One_Y,
+  VP_Level_Point_Two_X,
+  VP_Level_Point_Two_Y,
+  VP_Level_Point_Three_X,
+  VP_Level_Point_Three_Y,
+  VP_Level_Point_Four_X,
+  VP_Level_Point_Four_Y,
+  VP_Level_Point_Five_X,
+  VP_Level_Point_Five_Y,
+
+  0x0000
+};
+
+const uint16_t MKSList_Level_PrintConfig[] PROGMEM = {
+  VP_T_E0_Set,
+  VP_T_E1_Set,
+  VP_T_Bed_Set,
+  VP_Flowrate_E0,
+  VP_Flowrate_E1,
+  VP_Fan0_Percentage,
+  VP_Feedrate_Percentage,
+
+  0x0000
+};
+
+const uint16_t MKSList_PrintPauseConfig[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+
+  VP_X_PARK_POS,
+  VP_Y_PARK_POS,
+  VP_Z_PARK_POS,
+
+  0x0000
+};
+
+const uint16_t MKSList_MotoConfig[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+
+  VP_TRAVEL_SPEED,
+  VP_FEEDRATE_MIN_SPEED,
+  VP_T_F_SPEED,
+
+  0x0000
+};
+
+const uint16_t MKSList_EX_Config[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  VP_MIN_EX_T,VP_Min_EX_T_E,
+  0x0000
+};
+
+const uint16_t MKSTMC_Config[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  // HB Temp
+  VP_T_Bed_Is, VP_T_Bed_Set,
+  VP_MIN_EX_T,
+
+  VP_TMC_X_STEP,
+  VP_TMC_Y_STEP,
+  VP_TMC_Z_STEP,
+  VP_TMC_X1_Current,
+  VP_TMC_Y1_Current,
+  VP_TMC_X_Current,
+  VP_TMC_Y_Current,
+  VP_TMC_Z_Current,
+  VP_TMC_E0_Current,
+  VP_TMC_E1_Current,
+  VP_TMC_Z1_Current,
+
+  0x0000
+};
+
+const uint16_t MKSAuto_Level[] PROGMEM = {
+  VP_MESH_LEVEL_POINT_DIS,
+  VP_ZPos,
+  0x0000
+};
+
+const uint16_t MKSOffset_Config[] PROGMEM = {
+  // E Temp
+  REPEAT(EXTRUDERS, MKSLIST_E_ITEM)
+  VP_OFFSET_X,
+  VP_OFFSET_Y,
+  VP_OFFSET_Z,
+  0x0000
+};
+
+const uint16_t MKSBabyStep[] PROGMEM = {
+  VP_ZOffset_DE_DIS,
+  0x0000
+};
+
+const uint16_t MKSList_About[] PROGMEM = {
+  // Marlin version
+  VP_MARLIN_VERSION,
+  // H43 Version
+  VP_MKS_H43_VERSION,
+  VP_MKS_H43_UpdataVERSION,
+  0x0000
+};
+
+// Page data updata
+const struct VPMapping VPMap[] PROGMEM = {
+  { MKSLCD_SCREEN_BOOT, VPList_Boot },                        // Boot Page to show logo  0
+  { MKSLCD_SCREEN_HOME, MKSList_Home },                       // Home, Page 1
+  { MKSLCD_SCREEN_SETTING, MKSList_Setting },                 // Setting, Page 2
+  { MKSLCD_SCREEM_TOOL, MKSList_Tool },                       // Page 3
+  { MKSLCD_SCREEN_EXTRUDE_P1, MKSList_EXTRUE },               // Page 4
+  { MKSLCD_SCREEN_EXTRUDE_P2, MKSList_EXTRUE },               // Page 11
+  { MKSLCD_PAUSE_SETTING_EX, MKSList_EXTRUE },                // Page 57
+  { MKSLCD_PAUSE_SETTING_EX2, MKSList_EXTRUE },               // Page 61
+  { MKSLCD_SCREEN_LEVEL, MKSList_LEVEL },                     // Page 5
+  { MKSLCD_SCREEN_MOVE, MKSList_MOVE },                       // Page 6
+  { MKSLCD_SCREEN_PRINT, MKSList_Print },                     // Page 7
+  { MKSLCD_SCREEN_PAUSE, MKSList_Print },                     // Page 26
+  { MKSLCD_SCREEN_CHOOSE_FILE, MKSList_SD_File },             // Page 15
+  { MKSLCD_SCREEN_MOTOR_PLUSE, MKSList_Pluse },               // Page 51
+  { MKSLCD_SCREEN_MOTOR_SPEED, MKSList_MaxSpeed },            // Page 55
+  { MKSLCD_SCREEN_MOTOR_ACC_MAX, MKSList_MaxAcc },            // Page 53
+  { MKSLCD_SCREEN_LEVEL_DATA, MKSList_Level_Point },          // Page 48
+  { MKSLCD_PrintPause_SET, MKSList_PrintPauseConfig },        // Page 49
+  { MKSLCD_FILAMENT_DATA, MKSList_SD_File },                  // Page 50
+  { MKSLCD_SCREEN_Config, MKSList_TempOnly },                 // Page 46
+  { MKSLCD_SCREEN_Config_MOTOR, MKSList_MotoConfig },         // Page 47
+  { MKSLCD_PID, MKSList_PID },                                // Page 56
+  { MKSLCD_ABOUT, MKSList_About },                            // Page 36
+  { MKSLCD_SCREEN_PRINT_CONFIG, MKSList_Level_PrintConfig },  // Page 60
+  { MKSLCD_SCREEN_EX_CONFIG, MKSList_EX_Config },             // Page 65
+  { MKSLCD_SCREEN_TMC_Config, MKSTMC_Config },                // Page 70
+  { MKSLCD_AUTO_LEVEL, MKSAuto_Level },                       // Page 73
+  { MKSLCD_Screen_Offset_Config, MKSOffset_Config },          // Page 30
+  { MKSLCD_Screen_PMove, MKSList_MOVE },                      // Page 64
+  { MKSLCD_Screen_Baby, MKSBabyStep },                        // Page 71
+  //{ MKSLCD_SCREEN_LEVEL_DATA, MKSList_SD_File},
+  //{ MKSLCD_SCREEN_HOME, VPList_Boot },
+  { 0, nullptr } // List is terminated with an nullptr as table entry.
+};
+
+const char MarlinVersion[] PROGMEM = SHORT_BUILD_VERSION;
+const char H43Version[] PROGMEM = "MKS H43_V1.30";
+const char Updata_Time[] PROGMEM = STRING_DISTRIBUTION_DATE;
+
+// Helper to define a DGUS_VP_Variable for common use cases.
+#define VPHELPER(VPADR, VPADRVAR, RXFPTR, TXFPTR)                       \
+  {                                                                     \
+    .VP = VPADR, .memadr = VPADRVAR, .size = sizeof(VPADRVAR),          \
+    .set_by_display_handler = RXFPTR, .send_to_display_handler = TXFPTR \
+  }
+
+// Helper to define a DGUS_VP_Variable when the sizeo of the var cannot be determined automaticalyl (eg. a string)
+#define VPHELPER_STR(VPADR, VPADRVAR, STRLEN, RXFPTR, TXFPTR)           \
+  {                                                                     \
+    .VP = VPADR, .memadr = VPADRVAR, .size = STRLEN,                    \
+    .set_by_display_handler = RXFPTR, .send_to_display_handler = TXFPTR \
+  }
+
+const struct DGUS_VP_Variable ListOfVP[] PROGMEM = {
+  // Helper to detect touch events
+  VPHELPER(VP_SCREENCHANGE, nullptr, ScreenHandler.ScreenChangeHook, nullptr),
+  VPHELPER(VP_SCREENCHANGE_ASK, nullptr, ScreenHandler.ScreenChangeHookIfIdle, nullptr),
+  #if ENABLED(SDSUPPORT)
+    VPHELPER(VP_SCREENCHANGE_WHENSD, nullptr, ScreenHandler.ScreenChangeHookIfSD, nullptr),
+  #endif
+  VPHELPER(VP_CONFIRMED, nullptr, ScreenHandler.ScreenConfirmedOK, nullptr),
+
+  // Back Button
+  VPHELPER(VP_BACK_PAGE, nullptr, &ScreenHandler.ScreenBackChange, nullptr),
+  VPHELPER(VP_TEMP_ALL_OFF, nullptr, &ScreenHandler.HandleAllHeatersOff, nullptr),
+
+  VPHELPER(VP_MOVE_X, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_MOVE_Y, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_MOVE_Z, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_HOME_ALL, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+
+  VPHELPER(VP_X_HOME, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_Y_HOME, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_Z_HOME, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+
+  VPHELPER(VP_MOVE_DISTANCE, &distanceMove, &ScreenHandler.GetManualMovestep, nullptr),
+
+  VPHELPER(VP_MOTOR_LOCK_UNLOK, nullptr, &ScreenHandler.HandleManualMove, nullptr),
+  VPHELPER(VP_LEVEL_POINT, nullptr, &ScreenHandler.ManualAssistLeveling, nullptr),
+
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    VPHELPER(VP_POWER_LOSS_RECOVERY, nullptr, &ScreenHandler.HandlePowerLossRecovery, nullptr),
+  #endif
+  VPHELPER(VP_SETTINGS, nullptr, &ScreenHandler.HandleSettings, nullptr),
+  #if ENABLED(SINGLE_Z_CALIBRATION)
+    VPHELPER(VP_Z_CALIBRATE, nullptr, &ScreenHandler.HandleZCalibration, nullptr),
+  #endif
+  #if ENABLED(FIRST_LAYER_CAL)
+    VPHELPER(VP_Z_FIRST_LAYER_CAL, nullptr, &ScreenHandler.HandleFirstLayerCal, nullptr),
+  #endif
+  {.VP = VP_MARLIN_VERSION, .memadr = (void *)MarlinVersion, .size = VP_MARLIN_VERSION_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+  // M117 LCD String (We don't need the string in memory but "just" push it to the display on demand, hence the nullptr
+  {.VP = VP_M117, .memadr = nullptr, .size = VP_M117_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplay},
+  {.VP = VP_MKS_H43_VERSION, .memadr = (void *)H43Version, .size = VP_MKS_H43_VERSION_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+  {.VP = VP_MKS_H43_UpdataVERSION, .memadr = (void *)Updata_Time, .size = VP_MKS_H43_VERSION_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+
+  // Temperature Data
+  #if HOTENDS >= 1
+    VPHELPER(VP_T_E0_Is, &thermalManager.temp_hotend[0].celsius, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<0>),
+    VPHELPER(VP_T_E0_Set, &thermalManager.temp_hotend[0].target, ScreenHandler.HandleTemperatureChanged, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    VPHELPER(VP_Flowrate_E0, &planner.flow_percentage[ExtUI::extruder_t::E0], ScreenHandler.HandleFlowRateChanged, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    VPHELPER(VP_EPos, &destination.e, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+    VPHELPER(VP_MOVE_E0, nullptr, &ScreenHandler.HandleManualExtrude, nullptr),
+    VPHELPER(VP_E0_CONTROL, &thermalManager.temp_hotend[0].target, &ScreenHandler.HandleHeaterControl, nullptr),
+    VPHELPER(VP_E0_STATUS, &thermalManager.temp_hotend[0].target, nullptr, &ScreenHandler.DGUSLCD_SendHeaterStatusToDisplay),
+    #if ENABLED(DGUS_PREHEAT_UI)
+      VPHELPER(VP_E0_BED_PREHEAT, nullptr, &ScreenHandler.HandlePreheat, nullptr),
+    #endif
+    #if ENABLED(PIDTEMP)
+      VPHELPER(VP_E0_PID_P, &thermalManager.temp_hotend[0].pid.Kp, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_E0_PID_I, &thermalManager.temp_hotend[0].pid.Ki, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_E0_PID_D, &thermalManager.temp_hotend[0].pid.Kd, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_PID_AUTOTUNE_E0, nullptr, &ScreenHandler.HandlePIDAutotune, nullptr),
+    #endif
+    #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+      VPHELPER(VP_LOAD_Filament, nullptr, &ScreenHandler.MKS_FilamentLoad, nullptr),
+      VPHELPER(VP_UNLOAD_Filament, nullptr, &ScreenHandler.MKS_FilamentUnLoad, nullptr),
+      VPHELPER(VP_Filament_distance, &distanceFilament, &ScreenHandler.GetManualFilament, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+      VPHELPER(VP_Filament_speed, &FilamentSpeed, &ScreenHandler.GetManualFilamentSpeed, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+  #endif
+
+  #if HOTENDS >= 2
+    VPHELPER(VP_T_E1_Is, &thermalManager.temp_hotend[1].celsius, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<0>),
+    VPHELPER(VP_T_E1_Set, &thermalManager.temp_hotend[1].target, ScreenHandler.HandleTemperatureChanged, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    VPHELPER(VP_Flowrate_E1, &planner.flow_percentage[ExtUI::extruder_t::E1], ScreenHandler.HandleFlowRateChanged, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    VPHELPER(VP_MOVE_E1, nullptr, &ScreenHandler.HandleManualExtrude, nullptr),
+    VPHELPER(VP_E1_CONTROL, &thermalManager.temp_hotend[1].target, &ScreenHandler.HandleHeaterControl, nullptr),
+    VPHELPER(VP_E1_STATUS, &thermalManager.temp_hotend[1].target, nullptr, &ScreenHandler.DGUSLCD_SendHeaterStatusToDisplay),
+
+    #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+      VPHELPER(VP_Filament_distance, &distanceFilament, &ScreenHandler.GetManualFilament, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+      VPHELPER(VP_Filament_speed, &FilamentSpeed, &ScreenHandler.GetManualFilamentSpeed, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+
+    #if ENABLED(PIDTEMP)
+      VPHELPER(VP_PID_AUTOTUNE_E1, nullptr, &ScreenHandler.HandlePIDAutotune, nullptr),
+    #endif
+
+    VPHELPER(VP_E1_FILAMENT_LOAD_UNLOAD, nullptr, &ScreenHandler.HandleFilamentOption, &ScreenHandler.HandleFilamentLoadUnload),
+  #endif
+
+  #if HAS_HEATED_BED
+    VPHELPER(VP_T_Bed_Is, &thermalManager.temp_bed.celsius, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<0>),
+    VPHELPER(VP_T_Bed_Set, &thermalManager.temp_bed.target, ScreenHandler.HandleTemperatureChanged, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    VPHELPER(VP_BED_CONTROL, &thermalManager.temp_bed.target, &ScreenHandler.HandleHeaterControl, nullptr),
+    VPHELPER(VP_BED_STATUS, &thermalManager.temp_bed.target, nullptr, &ScreenHandler.DGUSLCD_SendHeaterStatusToDisplay),
+    #if ENABLED(PIDTEMPBED)
+      VPHELPER(VP_BED_PID_P, &thermalManager.temp_bed.pid.Kp, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_BED_PID_I, &thermalManager.temp_bed.pid.Ki, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_BED_PID_D, &thermalManager.temp_bed.pid.Kd, ScreenHandler.HandleTemperaturePIDChanged, ScreenHandler.DGUSLCD_SendTemperaturePID),
+      VPHELPER(VP_PID_AUTOTUNE_BED, nullptr, &ScreenHandler.HandlePIDAutotune, nullptr),
+    #endif
+  #endif
+
+  // Fan Data
+  #if HAS_FAN
+    #define FAN_VPHELPER(N)                                                                                                                    \
+      VPHELPER(VP_Fan##N##_Percentage, &thermalManager.fan_speed[N], ScreenHandler.DGUSLCD_SetUint8, &ScreenHandler.DGUSLCD_SendFanToDisplay), \
+      VPHELPER(VP_FAN##N##_CONTROL, &thermalManager.fan_speed[N], &ScreenHandler.HandleFanControl, nullptr),                               \
+      VPHELPER(VP_FAN##N##_STATUS, &thermalManager.fan_speed[N], nullptr, &ScreenHandler.DGUSLCD_SendFanStatusToDisplay),
+    REPEAT(FAN_COUNT, FAN_VPHELPER)
+  #endif
+
+  // Feedrate
+  VPHELPER(VP_Feedrate_Percentage, &feedrate_percentage, ScreenHandler.DGUSLCD_SetValueDirectly<int16_t>, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  // Position Data
+  VPHELPER(VP_XPos, &current_position.x, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+  VPHELPER(VP_YPos, &current_position.y, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+  VPHELPER(VP_ZPos, &current_position.z, nullptr, ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+
+  // Level Point Set
+  VPHELPER(VP_Level_Point_One_X, &level_1_x_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_One_Y, &level_1_y_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Two_X, &level_2_x_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Two_Y, &level_2_y_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Three_X, &level_3_x_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Three_Y, &level_3_y_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Four_X, &level_4_x_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Four_Y, &level_4_y_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Five_X, &level_5_x_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Level_Point_Five_Y, &level_5_y_point, ScreenHandler.HandleChangeLevelPoint_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  // Print Progress
+  VPHELPER(VP_PrintProgress_Percentage, nullptr, nullptr, ScreenHandler.DGUSLCD_SendPrintProgressToDisplay),
+
+  //LCD Control
+  VPHELPER(VP_LCD_BLK, &lcd_default_light, &ScreenHandler.LCD_BLK_Adjust, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  // Print Time
+  VPHELPER_STR(VP_PrintTime, nullptr, VP_PrintTime_LEN, nullptr, ScreenHandler.DGUSLCD_SendPrintTimeToDisplay_MKS),
+
+  #if ENABLED(PRINTCOUNTER)
+    VPHELPER_STR(VP_PrintAccTime, nullptr, VP_PrintAccTime_LEN, nullptr, ScreenHandler.DGUSLCD_SendPrintAccTimeToDisplay),
+    VPHELPER_STR(VP_PrintsTotal, nullptr, VP_PrintsTotal_LEN, nullptr, ScreenHandler.DGUSLCD_SendPrintsTotalToDisplay),
+  #endif
+
+  VPHELPER(VP_X_STEP_PER_MM, &planner.settings.axis_steps_per_mm[X_AXIS], ScreenHandler.HandleStepPerMMChanged_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_Y_STEP_PER_MM, &planner.settings.axis_steps_per_mm[Y_AXIS], ScreenHandler.HandleStepPerMMChanged_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_Z_STEP_PER_MM, &planner.settings.axis_steps_per_mm[Z_AXIS], ScreenHandler.HandleStepPerMMChanged_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+
+  VPHELPER(VP_X_MAX_SPEED, &planner.settings.max_feedrate_mm_s[X_AXIS], ScreenHandler.HandleMaxSpeedChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_Y_MAX_SPEED, &planner.settings.max_feedrate_mm_s[Y_AXIS], ScreenHandler.HandleMaxSpeedChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_Z_MAX_SPEED, &planner.settings.max_feedrate_mm_s[Z_AXIS], ScreenHandler.HandleMaxSpeedChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+
+  #if HOTENDS >= 1
+    VPHELPER(VP_E0_MAX_SPEED, &planner.settings.max_feedrate_mm_s[E0_AXIS], ScreenHandler.HandleExtruderMaxSpeedChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  #endif
+  #if HOTENDS >= 2
+    VPHELPER(VP_E1_MAX_SPEED, &planner.settings.max_feedrate_mm_s[E1_AXIS], ScreenHandler.HandleExtruderMaxSpeedChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  #endif
+
+  VPHELPER(VP_X_ACC_MAX_SPEED, (uint16_t *)&planner.settings.max_acceleration_mm_per_s2[X_AXIS], ScreenHandler.HandleMaxAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Y_ACC_MAX_SPEED, (uint16_t *)&planner.settings.max_acceleration_mm_per_s2[Y_AXIS], ScreenHandler.HandleMaxAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Z_ACC_MAX_SPEED, (uint16_t *)&planner.settings.max_acceleration_mm_per_s2[Z_AXIS], ScreenHandler.HandleMaxAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  #if HOTENDS >= 1
+    VPHELPER(VP_E0_ACC_MAX_SPEED, (uint16_t *)&planner.settings.max_acceleration_mm_per_s2[E0_AXIS], ScreenHandler.HandleExtruderAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  #endif
+  #if HOTENDS >= 2
+    VPHELPER(VP_E1_ACC_MAX_SPEED, (uint16_t *)&planner.settings.max_acceleration_mm_per_s2[E1_AXIS], ScreenHandler.HandleExtruderAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  #endif
+
+  VPHELPER(VP_TRAVEL_SPEED, (uint16_t *)&planner.settings.travel_acceleration, ScreenHandler.HandleTravelAccChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_FEEDRATE_MIN_SPEED, (uint16_t *)&planner.settings.min_feedrate_mm_s, ScreenHandler.HandleFeedRateMinChange_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_T_F_SPEED, (uint16_t *)&planner.settings.min_travel_feedrate_mm_s, ScreenHandler.HandleMin_T_F_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  VPHELPER(VP_ACC_SPEED, (uint16_t *)&planner.settings.acceleration, ScreenHandler.HandleAccChange_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  VPHELPER(VP_X_PARK_POS, &x_park_pos, ScreenHandler.GetParkPos_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Y_PARK_POS, &y_park_pos, ScreenHandler.GetParkPos_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_Z_PARK_POS, &z_park_pos, ScreenHandler.GetParkPos_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_MIN_EX_T, &thermalManager.extrude_min_temp, ScreenHandler.HandleGetExMinTemp_MKS, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+
+  #if ENABLED(SENSORLESS_HOMING)  // TMC SENSORLESS Setting
+    #if AXIS_HAS_STEALTHCHOP(X)
+      VPHELPER(VP_TMC_X_STEP, &tmc_x_step, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendTMCStepValue),
+    #endif
+    #if AXIS_HAS_STEALTHCHOP(Y)
+      VPHELPER(VP_TMC_Y_STEP, &tmc_y_step, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendTMCStepValue),
+    #endif
+    #if AXIS_HAS_STEALTHCHOP(Z)
+      VPHELPER(VP_TMC_Z_STEP, &tmc_z_step, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendTMCStepValue),
+    #endif
+  #endif
+
+  #if HAS_TRINAMIC_CONFIG   // TMC Current Setting
+    #if AXIS_IS_TMC(X)
+      VPHELPER(VP_TMC_X_Current, &stepperX.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(Y)
+      VPHELPER(VP_TMC_Y_Current, &stepperY.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(Z)
+      VPHELPER(VP_TMC_Z_Current, &stepperZ.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(E0)
+      VPHELPER(VP_TMC_E0_Current, &stepperE0.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(E1)
+      VPHELPER(VP_TMC_E1_Current, &stepperE1.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(X2)
+      VPHELPER(VP_TMC_X1_Current, &stepperX2.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(Y2)
+      VPHELPER(VP_TMC_Y1_Current, &stepperY2.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+    #if AXIS_IS_TMC(Z2)
+      VPHELPER(VP_TMC_Z1_Current, &stepperZ2.val_mA, ScreenHandler.TMC_ChangeConfig, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+    #endif
+  #endif
+
+  VPHELPER(VP_EEPROM_CTRL, nullptr, ScreenHandler.EEPROM_CTRL, nullptr),
+  VPHELPER(VP_LEVEL_BUTTON, nullptr, ScreenHandler.Level_Ctrl_MKS, nullptr),
+  VPHELPER(VP_LANGUAGE_CHANGE, nullptr, ScreenHandler.LanguageChange_MKS, nullptr),
+
+  //VPHELPER(VP_SD_Print_LiveAdjustZ, nullptr, ScreenHandler.HandleLiveAdjustZ, nullptr),
+
+  VPHELPER(VP_SD_Print_LiveAdjustZ_Confirm, nullptr, ScreenHandler.ZoffsetConfirm, nullptr),
+
+  VPHELPER(VP_ZOffset_Distance,nullptr ,ScreenHandler.GetZoffsetDistance, nullptr),
+  VPHELPER(VP_MESH_LEVEL_ADJUST, nullptr, ScreenHandler.MeshLevelDistanceConfig, nullptr),
+  VPHELPER(VP_MESH_LEVEL_POINT,nullptr, ScreenHandler.MeshLevel,nullptr),
+  VPHELPER(VP_Min_EX_T_E, &thermalManager.extrude_min_temp, &ScreenHandler.GetMinExtrudeTemp, &ScreenHandler.DGUSLCD_SendWordValueToDisplay),
+  VPHELPER(VP_AutoTurnOffSw, nullptr, &ScreenHandler.GetTurnOffCtrl, nullptr),
+
+  #if HOTENDS >= 1
+    VPHELPER(VP_E0_STEP_PER_MM, &planner.settings.axis_steps_per_mm[E_AXIS_N(0)], ScreenHandler.HandleStepPerMMExtruderChanged_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  #endif
+  #if HOTENDS >= 2
+    VPHELPER(VP_E1_STEP_PER_MM, &planner.settings.axis_steps_per_mm[E_AXIS_N(1)], ScreenHandler.HandleStepPerMMExtruderChanged_MKS, ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<0>),
+  #endif
+
+
+  // SDCard File listing
+  #if ENABLED(SDSUPPORT)
+    VPHELPER(VP_SD_ScrollEvent, nullptr, ScreenHandler.DGUSLCD_SD_ScrollFilelist, nullptr),
+    VPHELPER(VP_SD_FileSelected, nullptr, ScreenHandler.DGUSLCD_SD_FileSelected, nullptr),
+    VPHELPER(VP_SD_FileSelectConfirm, nullptr, ScreenHandler.DGUSLCD_SD_StartPrint, nullptr),
+    VPHELPER_STR(VP_SD_FileName0, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName1, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName2, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName3, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName4, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName5, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName6, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName7, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName8, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER_STR(VP_SD_FileName9, nullptr, VP_SD_FileName_LEN, nullptr, ScreenHandler.DGUSLCD_SD_SendFilename),
+    VPHELPER(VP_SD_ResumePauseAbort, nullptr, ScreenHandler.DGUSLCD_SD_ResumePauseAbort, nullptr),
+    VPHELPER(VP_SD_AbortPrintConfirmed, nullptr, ScreenHandler.DGUSLCD_SD_ReallyAbort, nullptr),
+    VPHELPER(VP_SD_Print_Setting, nullptr, ScreenHandler.DGUSLCD_SD_PrintTune, nullptr),
+    #if ENABLED(BABYSTEPPING)
+      VPHELPER(VP_SD_Print_LiveAdjustZ,nullptr, ScreenHandler.HandleLiveAdjustZ, &ScreenHandler.DGUSLCD_SendFloatAsIntValueToDisplay<2>),
+      VPHELPER(VP_ZOffset_DE_DIS,&z_offset_add,nullptr, &ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+    #endif
+    #if HAS_BED_PROBE
+      VPHELPER(VP_OFFSET_X, &probe.offset.x, ScreenHandler.GetOffsetValue,ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+      VPHELPER(VP_OFFSET_Y, &probe.offset.y, ScreenHandler.GetOffsetValue,ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+      VPHELPER(VP_OFFSET_Z, &probe.offset.z, ScreenHandler.GetOffsetValue,ScreenHandler.DGUSLCD_SendFloatAsLongValueToDisplay<2>),
+    #endif
+  #endif
+
+  #if ENABLED(DGUS_UI_WAITING)
+    VPHELPER(VP_WAITING_STATUS, nullptr, nullptr, ScreenHandler.DGUSLCD_SendWaitingStatusToDisplay),
+  #endif
+
+  // Messages for the User, shared by the popup and the kill screen. They cant be autouploaded as we do not buffer content.
+  //{.VP = VP_MSGSTR1, .memadr = nullptr, .size = VP_MSGSTR1_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+  //{.VP = VP_MSGSTR2, .memadr = nullptr, .size = VP_MSGSTR2_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+  //{.VP = VP_MSGSTR3, .memadr = nullptr, .size = VP_MSGSTR3_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+  //{.VP = VP_MSGSTR4, .memadr = nullptr, .size = VP_MSGSTR4_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplayPGM},
+
+  {.VP = VP_MSGSTR1, .memadr = nullptr, .size = VP_MSGSTR1_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplay_Language_MKS},
+  {.VP = VP_MSGSTR2, .memadr = nullptr, .size = VP_MSGSTR2_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplay_Language_MKS},
+  {.VP = VP_MSGSTR3, .memadr = nullptr, .size = VP_MSGSTR3_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplay_Language_MKS},
+  {.VP = VP_MSGSTR4, .memadr = nullptr, .size = VP_MSGSTR4_LEN, .set_by_display_handler = nullptr, .send_to_display_handler = &ScreenHandler.DGUSLCD_SendStringToDisplay_Language_MKS},
+
+  VPHELPER(0, 0, 0, 0) // must be last entry.
+};
+
+#endif // DGUS_LCD_UI_MKS

Marlin/src/lcd/extui/lib/dgus/mks/DGUSDisplayDef.h

@@ -0,0 +1,908 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../DGUSDisplayDef.h"
+
+//#define USE_MKS_GREEN_UI
+//#define DGUS_MKS_RUNOUT_SENSOR
+
+#define LOGO_TIME_DELAY TERN(USE_MKS_GREEN_UI, 5000, 1500)
+
+#if ENABLED(DGUS_MKS_RUNOUT_SENSOR)
+  #define MT_DET_1_PIN         1
+  #define MT_DET_2_PIN         2
+  #define MT_DET_PIN_INVERTING false
+#endif
+
+#define MKS_FINSH
+
+extern uint16_t distanceMove;
+extern float    distanceFilament;
+extern uint16_t FilamentSpeed;
+extern float    ZOffset_distance;
+extern float    mesh_adj_distance;
+extern float    Z_distance;
+
+extern int16_t level_1_x_point;
+extern int16_t level_1_y_point;
+extern int16_t level_2_x_point;
+extern int16_t level_2_y_point;
+extern int16_t level_3_x_point;
+extern int16_t level_3_y_point;
+extern int16_t level_4_x_point;
+extern int16_t level_4_y_point;
+extern int16_t level_5_x_point;
+extern int16_t level_5_y_point;
+
+extern uint16_t tim_h;
+extern uint16_t tim_m;
+extern uint16_t tim_s;
+
+extern uint16_t x_park_pos;
+extern uint16_t y_park_pos;
+extern uint16_t z_park_pos;
+
+extern xyz_pos_t position_before_pause;
+void MKS_pause_print_move();
+void MKS_resume_print_move();
+
+extern uint16_t min_ex_temp;
+
+extern float z_offset_add;
+
+extern uint16_t tmc_x_step;
+extern uint16_t tmc_y_step;
+extern uint16_t tmc_z_step;
+
+extern uint16_t lcd_default_light;
+
+#if AXIS_HAS_STEALTHCHOP(X)
+  extern uint16_t tmc_x_current;
+#endif
+#if AXIS_HAS_STEALTHCHOP(Y)
+  extern uint16_t tmc_y_current;
+#endif
+#if AXIS_HAS_STEALTHCHOP(Z)
+  extern uint16_t tmc_z_current;
+#endif
+#if AXIS_HAS_STEALTHCHOP(E0)
+  extern uint16_t tmc_e0_current;
+#endif
+#if AXIS_HAS_STEALTHCHOP(E1)
+  extern uint16_t tmc_e1_current;
+#endif
+
+typedef enum {
+  EX_HEATING,
+  EX_HEAT_STARUS,
+  EX_CHANGING,
+  EX_CHANGE_STATUS,
+  EX_NONE,
+} EX_STATUS_DEF;
+
+typedef struct {
+  //uint8_t ex_change_flag:1;
+  //uint8_t ex_heat_flag:1;
+  uint8_t ex_load_unload_flag:1;  //0:unload  1:load
+  EX_STATUS_DEF ex_status;
+  uint32_t ex_tick_start;
+  uint32_t ex_tick_end;
+  uint32_t ex_speed;
+  uint32_t ex_length;
+  uint32_t ex_need_time;
+} EX_FILAMENT_DEF;
+
+extern EX_FILAMENT_DEF ex_filament;
+
+typedef enum {
+  UNRUNOUT_STATUS,
+  RUNOUT_STATUS,
+  RUNOUT_WAITTING_STATUS,
+  RUNOUT_BEGIN_STATUS,
+} RUNOUT_MKS_STATUS_DEF;
+
+typedef struct {
+  RUNOUT_MKS_STATUS_DEF runout_status;
+  uint8_t pin_status;
+  uint8_t de_count;
+  uint8_t de_times;
+} RUNOUT_MKS_DEF;
+
+extern RUNOUT_MKS_DEF runout_mks;
+
+typedef struct {
+  uint8_t print_pause_start_flag:1;
+  uint8_t runout_flag:1;
+  bool blstatus;
+  uint16_t x_pos;
+  uint16_t y_pos;
+  uint16_t z_pos;
+} NOZZLE_PARK_DEF;
+
+extern NOZZLE_PARK_DEF nozzle_park_mks;
+
+enum DGUSLCD_Screens : uint8_t {
+  #if ENABLED(USE_MKS_GREEN_UI)
+
+    DGUSLCD_SCREEN_BOOT                 =  33,
+    DGUSLCD_SCREEN_MAIN                 =  60,
+    DGUSLCD_SCREEN_STATUS               =  60,
+    DGUSLCD_SCREEN_STATUS2              =  60,
+    DGUSLCD_SCREEN_PREHEAT              =  18,
+    DGUSLCD_SCREEN_POWER_LOSS           = 100,
+    DGUSLCD_SCREEN_MANUALMOVE           = 192,
+    DGUSLCD_SCREEN_UTILITY              = 120,
+    DGUSLCD_SCREEN_FILAMENT_UNLOADING   = 158,
+    DGUSLCD_SCREEN_SDFILELIST           =  15,
+    DGUSLCD_SCREEN_SDPRINTMANIPULATION  =  15,
+    DGUSLCD_SCREEN_SDPRINTTUNE          =  17,
+
+    MKSLCD_SCREEN_BOOT                  =  33,
+    MKSLCD_SCREEN_HOME                  =  60,   // MKS main page
+    MKSLCD_SCREEN_SETTING               =  62,   // MKS Setting page / no wifi whit
+    MKSLCD_SCREEM_TOOL                  =  64,   // MKS Tool page
+    MKSLCD_SCREEN_EXTRUDE_P1            =  75,
+    MKSLCD_SCREEN_EXTRUDE_P2            =  77,
+    MKSLCD_SCREEN_LEVEL                 =  73,
+    MKSLCD_AUTO_LEVEL                   =  81,
+    MKSLCD_SCREEN_MOVE                  =  66,
+    MKSLCD_SCREEN_PRINT                 =  68,
+    MKSLCD_SCREEN_PAUSE                 =  70,
+    MKSLCD_SCREEN_CHOOSE_FILE           =  87,
+    MKSLCD_SCREEN_NO_CHOOSE_FILE        =  88,
+    MKSLCD_SCREEN_Config                = 101,
+    MKSLCD_SCREEN_Config_MOTOR          = 103,
+    MKSLCD_SCREEN_MOTOR_PLUSE           = 104,
+    MKSLCD_SCREEN_MOTOR_SPEED           = 102,
+    MKSLCD_SCREEN_MOTOR_ACC_MAX         = 105,
+    MKSLCD_SCREEN_PRINT_CONFIG          =  72,
+    MKSLCD_SCREEN_LEVEL_DATA            = 106,
+    MKSLCD_PrintPause_SET               = 107,
+    //MKSLCD_FILAMENT_DATA                =  50,
+    MKSLCD_ABOUT                        =  83,
+    MKSLCD_PID                          = 108,
+    MKSLCD_PAUSE_SETTING_MOVE           =  98,
+    MKSLCD_PAUSE_SETTING_EX             =  96,
+    MKSLCD_PAUSE_SETTING_EX2            =  97,
+    MKSLCD_SCREEN_PRINT_CONFIRM         =  94,
+    MKSLCD_SCREEN_EX_CONFIG             = 112,
+    MKSLCD_SCREEN_EEP_Config            =  89,
+    MKSLCD_SCREEN_PrintDone             =  92,
+    MKSLCD_SCREEN_TMC_Config            = 111,
+    MKSLCD_Screen_Offset_Config         = 109,
+    MKSLCD_Screen_PMove                 =  98,
+    MKSLCD_Screen_Baby                  =  79,
+
+  #else
+
+    DGUSLCD_SCREEN_BOOT                 = 120,
+    DGUSLCD_SCREEN_MAIN                 =   1,
+
+    DGUSLCD_SCREEN_STATUS               =   1,
+    DGUSLCD_SCREEN_STATUS2              =   1,
+    DGUSLCD_SCREEN_PREHEAT              =  18,
+    DGUSLCD_SCREEN_POWER_LOSS           = 100,
+    DGUSLCD_SCREEN_MANUALMOVE           = 192,
+    DGUSLCD_SCREEN_UTILITY              = 120,
+    DGUSLCD_SCREEN_FILAMENT_UNLOADING   = 158,
+    DGUSLCD_SCREEN_SDFILELIST           =  15,
+    DGUSLCD_SCREEN_SDPRINTMANIPULATION  =  15,
+    DGUSLCD_SCREEN_SDPRINTTUNE          =  17,
+
+    MKSLCD_SCREEN_BOOT                  =   0,
+    MKSLCD_SCREEN_HOME                  =   1,   // MKS main page
+    MKSLCD_SCREEN_SETTING               =   2,   // MKS Setting page / no wifi whit
+    MKSLCD_SCREEM_TOOL                  =   3,   // MKS Tool page
+    MKSLCD_SCREEN_EXTRUDE_P1            =   4,
+    MKSLCD_SCREEN_EXTRUDE_P2            =  11,
+    MKSLCD_SCREEN_LEVEL                 =   5,
+    MKSLCD_AUTO_LEVEL                   =  73,
+    MKSLCD_SCREEN_LEVEL_PRESS           =   9,
+    MKSLCD_SCREEN_MOVE                  =   6,
+    MKSLCD_SCREEN_PRINT                 =   7,
+    MKSLCD_SCREEN_PRINT_PRESS           =  13,
+    MKSLCD_SCREEN_PAUSE                 =  26,
+    MKSLCD_SCREEN_PAUSE_PRESS           =  26,
+    MKSLCD_SCREEN_CHOOSE_FILE           =  15,
+    MKSLCD_SCREEN_NO_CHOOSE_FILE        =  17,
+    MKSLCD_SCREEN_Config                =  46,
+    MKSLCD_SCREEN_Config_MOTOR          =  47,
+    MKSLCD_SCREEN_MOTOR_PLUSE           =  51,
+    MKSLCD_SCREEN_MOTOR_SPEED           =  55,
+    MKSLCD_SCREEN_MOTOR_ACC_MAX         =  53,
+    MKSLCD_SCREEN_PRINT_CONFIG          =  60,
+    MKSLCD_SCREEN_LEVEL_DATA            =  48,
+    MKSLCD_PrintPause_SET               =  49,
+    MKSLCD_FILAMENT_DATA                =  50,
+    MKSLCD_ABOUT                        =  36,
+    MKSLCD_PID                          =  56,
+    MKSLCD_PAUSE_SETTING_MOVE           =  58,
+    MKSLCD_PAUSE_SETTING_EX             =  57,
+    MKSLCD_PAUSE_SETTING_EX2            =  61,
+    MKSLCD_SCREEN_NO_FILE               =  42,
+    MKSLCD_SCREEN_PRINT_CONFIRM         =  43,
+    MKSLCD_SCREEN_EX_CONFIG             =  65,
+    MKSLCD_SCREEN_EEP_Config            =  20,
+    MKSLCD_SCREEN_PrintDone             =  25,
+    MKSLCD_SCREEN_TMC_Config            =  70,
+    MKSLCD_Screen_Offset_Config         =  30,
+    MKSLCD_Screen_PMove                 =  64,
+    MKSLCD_Screen_Baby                  =  71,
+
+  #endif
+
+  DGUSLCD_SCREEN_CONFIRM                = 240,
+  DGUSLCD_SCREEN_KILL                   = 250, ///< Kill Screen. Must always be 250 (to be able to display "Error wrong LCD Version")
+  DGUSLCD_SCREEN_WAITING                = 251,
+  DGUSLCD_SCREEN_POPUP                  = 252, ///< special target, popup screen will also return this code to say "return to previous screen"
+  DGUSLDC_SCREEN_UNUSED                 = 255
+};
+
+// Display Memory layout used (T5UID)
+// Except system variables this is arbitrary, just to organize stuff....
+
+// 0x0000 .. 0x0FFF  -- System variables and reserved by the display
+// 0x1000 .. 0x1FFF  -- Variables to never change location, regardless of UI Version
+// 0x2000 .. 0x2FFF  -- Controls (VPs that will trigger some action)
+// 0x3000 .. 0x4FFF  -- Marlin Data to be displayed
+// 0x5000 ..         -- SPs (if we want to modify display elements, e.g change color or like) -- currently unused
+
+// As there is plenty of space (at least most displays have >8k RAM), we do not pack them too tight,
+// so that we can keep variables nicely together in the address space.
+
+// UI Version always on 0x1000...0x1002 so that the firmware can check this and bail out.
+
+// constexpr uint16_t VP_UI_VERSION_MAJOR = 0x1000;  // Major -- incremented when incompatible
+// constexpr uint16_t VP_UI_VERSION_MINOR = 0x1001;  // Minor -- incremented on new features, but compatible
+// constexpr uint16_t VP_UI_VERSION_PATCH = 0x1002;  // Patch -- fixed which do not change functionality.
+// constexpr uint16_t VP_UI_FLAVOUR       = 0x1010;  // lets reserve 16 bytes here to determine if UI is suitable for this Marlin. tbd.
+
+// Storage space for the Killscreen messages. 0x1100 - 0x1200 . Reused for the popup.
+// constexpr uint16_t VP_MSGSTR1 = 0x1100;
+// constexpr uint8_t VP_MSGSTR1_LEN = 0x20;  // might be more place for it...
+// constexpr uint16_t VP_MSGSTR2 = 0x1140;
+// constexpr uint8_t VP_MSGSTR2_LEN = 0x20;
+// constexpr uint16_t VP_MSGSTR3 = 0x1180;
+// constexpr uint8_t VP_MSGSTR3_LEN = 0x20;
+// constexpr uint16_t VP_MSGSTR4 = 0x11C0;
+// constexpr uint8_t VP_MSGSTR4_LEN = 0x20;
+
+// Screenchange request for screens that only make sense when printer is idle.
+// e.g movement is only allowed if printer is not printing.
+// Marlin must confirm by setting the screen manually.
+// constexpr uint16_t VP_SCREENCHANGE_ASK = 0x2000;
+// constexpr uint16_t VP_SCREENCHANGE = 0x2001;   // Key-Return button to new menu pressed. Data contains target screen in low byte and info in high byte.
+// constexpr uint16_t VP_TEMP_ALL_OFF = 0x2002;   // Turn all heaters off. Value arbitrary ;)=
+// constexpr uint16_t VP_SCREENCHANGE_WHENSD = 0x2003; // "Print" Button touched -- go only there if there is an SD Card.
+// constexpr uint16_t VP_CONFIRMED = 0x2010; // OK on confirm screen.
+
+// // Buttons on the SD-Card File listing.
+// constexpr uint16_t VP_SD_ScrollEvent = 0x2020; // Data: 0 for "up a directory", numbers are the amount to scroll, e.g -1 one up, 1 one down
+// constexpr uint16_t VP_SD_FileSelected = 0x2022; // Number of file field selected.
+// constexpr uint16_t VP_SD_FileSelectConfirm = 0x2024; // (This is a virtual VP and emulated by the Confirm Screen when a file has been confirmed)
+
+// constexpr uint16_t VP_SD_ResumePauseAbort = 0x2026; // Resume(Data=0), Pause(Data=1), Abort(Data=2) SD Card prints
+// constexpr uint16_t VP_SD_AbortPrintConfirmed = 0x2028; // Abort print confirmation (virtual, will be injected by the confirm dialog)
+// constexpr uint16_t VP_SD_Print_Setting = 0x2040;
+// constexpr uint16_t VP_SD_Print_LiveAdjustZ = 0x2050; // Data: 0 down, 1 up
+
+// Controls for movement (we can't use the incremental / decremental feature of the display at this feature works only with 16 bit values
+// (which would limit us to 655.35mm, which is likely not a problem for common setups, but i don't want to rule out hangprinters support)
+// A word about the coding: The VP will be per axis and the return code will be an signed 16 bit value in 0.01 mm resolution, telling us
+// the relative travel amount t he user wants to do. So eg. if the display sends us VP=2100 with value 100, the user wants us to move X by +1 mm.
+// constexpr uint16_t VP_MOVE_X = 0x2100;
+// constexpr uint16_t VP_MOVE_Y = 0x2102;
+// constexpr uint16_t VP_MOVE_Z = 0x2104;
+// constexpr uint16_t VP_MOVE_E0 = 0x2110;
+// constexpr uint16_t VP_MOVE_E1 = 0x2112;
+// //constexpr uint16_t VP_MOVE_E2 = 0x2114;
+// //constexpr uint16_t VP_MOVE_E3 = 0x2116;
+// //constexpr uint16_t VP_MOVE_E4 = 0x2118;
+// //constexpr uint16_t VP_MOVE_E5 = 0x211A;
+// constexpr uint16_t VP_HOME_ALL = 0x2120;
+// constexpr uint16_t VP_MOTOR_LOCK_UNLOK = 0x2130;
+// constexpr uint16_t VP_XYZ_HOME = 0x2132;
+
+// Power loss recovery
+// constexpr uint16_t VP_POWER_LOSS_RECOVERY = 0x2180;
+
+// // Fan Control Buttons , switch between "off" and "on"
+// constexpr uint16_t VP_FAN0_CONTROL = 0x2200;
+// constexpr uint16_t VP_FAN1_CONTROL = 0x2202;
+// constexpr uint16_t VP_FAN2_CONTROL = 0x2204;
+// constexpr uint16_t VP_FAN3_CONTROL = 0x2206;
+
+// // Heater Control Buttons , triged between "cool down" and "heat PLA" state
+// constexpr uint16_t VP_E0_CONTROL = 0x2210;
+// constexpr uint16_t VP_E1_CONTROL = 0x2212;
+// //constexpr uint16_t VP_E2_CONTROL = 0x2214;
+// //constexpr uint16_t VP_E3_CONTROL = 0x2216;
+// //constexpr uint16_t VP_E4_CONTROL = 0x2218;
+// //constexpr uint16_t VP_E5_CONTROL = 0x221A;
+// constexpr uint16_t VP_BED_CONTROL = 0x221C;
+
+// // Preheat
+// constexpr uint16_t VP_E0_BED_PREHEAT = 0x2220;
+// constexpr uint16_t VP_E1_BED_PREHEAT = 0x2222;
+// //constexpr uint16_t VP_E2_BED_PREHEAT = 0x2224;
+// //constexpr uint16_t VP_E3_BED_PREHEAT = 0x2226;
+// //constexpr uint16_t VP_E4_BED_PREHEAT = 0x2228;
+// //constexpr uint16_t VP_E5_BED_PREHEAT = 0x222A;
+
+// // Filament load and unload
+// // constexpr uint16_t VP_E0_FILAMENT_LOAD_UNLOAD = 0x2300;
+// // constexpr uint16_t VP_E1_FILAMENT_LOAD_UNLOAD = 0x2302;
+
+// // Settings store , reset
+
+// // PID autotune
+// constexpr uint16_t VP_PID_AUTOTUNE_E0 = 0x2410;
+// constexpr uint16_t VP_PID_AUTOTUNE_E1 = 0x2412;
+// //constexpr uint16_t VP_PID_AUTOTUNE_E2 = 0x2414;
+// //constexpr uint16_t VP_PID_AUTOTUNE_E3 = 0x2416;
+// //constexpr uint16_t VP_PID_AUTOTUNE_E4 = 0x2418;
+// //constexpr uint16_t VP_PID_AUTOTUNE_E5 = 0x241A;
+// constexpr uint16_t VP_PID_AUTOTUNE_BED = 0x2420;
+// // Calibrate Z
+// constexpr uint16_t VP_Z_CALIBRATE = 0x2430;
+
+// First layer cal
+// constexpr uint16_t VP_Z_FIRST_LAYER_CAL = 0x2500; // Data: 0 - Cancel first layer cal progress, >0 filament type have loaded
+
+// Firmware version on the boot screen.
+// constexpr uint16_t VP_MARLIN_VERSION = 0x3000;
+// constexpr uint8_t VP_MARLIN_VERSION_LEN = 16;   // there is more space on the display, if needed.
+
+// Place for status messages.
+constexpr uint16_t VP_M117 = 0x7020;
+constexpr uint8_t VP_M117_LEN = 0x20;
+
+// // Temperatures.
+// constexpr uint16_t VP_T_E0_Is = 0x3060;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E0_Set = 0x3062; // 2 Byte Integer
+// constexpr uint16_t VP_T_E1_Is = 0x3064;  // 4 Byte Integer
+// // reserved to support up to 6 Extruders:
+// constexpr uint16_t VP_T_E1_Set = 0x3066; // 2 Byte Integer
+// constexpr uint16_t VP_T_E2_Is = 0x3068;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E2_Set = 0x306A; // 2 Byte Integer
+// constexpr uint16_t VP_T_E3_Is = 0x306C;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E3_Set = 0x306E; // 2 Byte Integer
+// constexpr uint16_t VP_T_E4_Is = 0x3070;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E4_Set = 0x3072; // 2 Byte Integer
+// constexpr uint16_t VP_T_E5_Is = 0x3074;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E5_Set = 0x3076; // 2 Byte Integer
+// constexpr uint16_t VP_T_E6_Is = 0x3078;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E6_Set = 0x307A; // 2 Byte Integer
+// constexpr uint16_t VP_T_E7_Is = 0x3078;  // 4 Byte Integer
+// constexpr uint16_t VP_T_E7_Set = 0x307A; // 2 Byte Integer
+
+
+// constexpr uint16_t VP_T_Bed_Is = 0x3080;  // 4 Byte Integer
+// constexpr uint16_t VP_T_Bed_Set = 0x3082; // 2 Byte Integer
+
+// constexpr uint16_t VP_Flowrate_E0 = 0x3090; // 2 Byte Integer
+// constexpr uint16_t VP_Flowrate_E1 = 0x3092; // 2 Byte Integer
+// // reserved for up to 6 Extruders:
+// constexpr uint16_t VP_Flowrate_E2 = 0x3094;
+// constexpr uint16_t VP_Flowrate_E3 = 0x3096;
+// constexpr uint16_t VP_Flowrate_E4 = 0x3098;
+// constexpr uint16_t VP_Flowrate_E5 = 0x309A;
+
+// constexpr uint16_t VP_Fan0_Percentage = 0x3100;  // 2 Byte Integer (0..100)
+// constexpr uint16_t VP_Fan1_Percentage = 0x3102;  // 2 Byte Integer (0..100)
+// constexpr uint16_t VP_Fan2_Percentage = 0x3104;  // 2 Byte Integer (0..100)
+// constexpr uint16_t VP_Fan3_Percentage = 0x3106;  // 2 Byte Integer (0..100)
+// constexpr uint16_t VP_Feedrate_Percentage = 0x3108; // 2 Byte Integer (0..100)
+
+// Actual Position
+// constexpr uint16_t VP_XPos = 0x3110;  // 4 Byte Fixed point number; format xxx.yy
+// constexpr uint16_t VP_YPos = 0x3112;  // 4 Byte Fixed point number; format xxx.yy
+// constexpr uint16_t VP_ZPos = 0x3114;  // 4 Byte Fixed point number; format xxx.yy
+// constexpr uint16_t VP_EPos = 0x3120;  // 4 Byte Fixed point number; format xxx.yy
+
+// constexpr uint16_t VP_PrintProgress_Percentage = 0x3130; // 2 Byte Integer (0..100)
+
+// constexpr uint16_t VP_PrintTime = 0x3140;
+// constexpr uint16_t VP_PrintTime_LEN = 32;
+
+// constexpr uint16_t VP_PrintAccTime = 0x3160;
+// constexpr uint16_t VP_PrintAccTime_LEN = 32;
+
+// constexpr uint16_t VP_PrintsTotal = 0x3180;
+// constexpr uint16_t VP_PrintsTotal_LEN = 16;
+
+// // SDCard File Listing
+// constexpr uint16_t VP_SD_FileName_LEN = 32; // LEN is shared for all entries.
+// constexpr uint16_t DGUS_SD_FILESPERSCREEN = 8; // FIXME move that info to the display and read it from there.
+// constexpr uint16_t VP_SD_FileName0 = 0x3200;
+// constexpr uint16_t VP_SD_FileName1 = 0x3220;
+// constexpr uint16_t VP_SD_FileName2 = 0x3240;
+// constexpr uint16_t VP_SD_FileName3 = 0x3260;
+// constexpr uint16_t VP_SD_FileName4 = 0x3280;
+// constexpr uint16_t VP_SD_FileName5 = 0x32A0;
+// constexpr uint16_t VP_SD_FileName6 = 0x32C0;
+// constexpr uint16_t VP_SD_FileName7 = 0x32E0;
+
+// Heater status
+constexpr uint16_t VP_E0_STATUS = 0x3410;
+constexpr uint16_t VP_E1_STATUS = 0x3412;
+//constexpr uint16_t VP_E2_STATUS = 0x3414;
+//constexpr uint16_t VP_E3_STATUS = 0x3416;
+//constexpr uint16_t VP_E4_STATUS = 0x3418;
+//constexpr uint16_t VP_E5_STATUS = 0x341A;
+constexpr uint16_t VP_MOVE_OPTION = 0x3500;
+
+// // PIDs
+// constexpr uint16_t VP_E0_PID_P = 0x3700; // at the moment , 2 byte unsigned int , 0~1638.4
+// constexpr uint16_t VP_E0_PID_I = 0x3702;
+// constexpr uint16_t VP_E0_PID_D = 0x3704;
+// constexpr uint16_t VP_E1_PID_P = 0x3706; // at the moment , 2 byte unsigned int , 0~1638.4
+// constexpr uint16_t VP_E1_PID_I = 0x3708;
+// constexpr uint16_t VP_E1_PID_D = 0x370A;
+// constexpr uint16_t VP_BED_PID_P = 0x3710;
+// constexpr uint16_t VP_BED_PID_I = 0x3712;
+// constexpr uint16_t VP_BED_PID_D = 0x3714;
+
+// Wating screen status
+constexpr uint16_t VP_WAITING_STATUS = 0x3800;
+
+// SPs for certain variables...
+// located at 0x5000 and up
+// Not used yet!
+// This can be used e.g to make controls / data display invisible
+constexpr uint16_t SP_T_E0_Is     = 0x5000;
+constexpr uint16_t SP_T_E0_Set    = 0x5010;
+constexpr uint16_t SP_T_E1_Is     = 0x5020;
+constexpr uint16_t SP_T_Bed_Is    = 0x5030;
+constexpr uint16_t SP_T_Bed_Set   = 0x5040;
+
+/*************************************************************************************************************************
+ *************************************************************************************************************************
+ *                                                 DGUS for MKS Mem layout
+ ************************************************************************************************************************
+ ************************************************************************************************************************/
+
+#if ENABLED(MKS_FINSH)
+  /* -------------------------------0x1000-0x1FFF------------------------------- */
+  constexpr uint16_t VP_MSGSTR1                       = 0x1100;
+  constexpr uint8_t  VP_MSGSTR1_LEN                   = 0x20;  // might be more place for it...
+  constexpr uint16_t VP_MSGSTR2                       = 0x1140;
+  constexpr uint8_t  VP_MSGSTR2_LEN                   = 0x20;
+  constexpr uint16_t VP_MSGSTR3                       = 0x1180;
+  constexpr uint8_t  VP_MSGSTR3_LEN                   = 0x20;
+  constexpr uint16_t VP_MSGSTR4                       = 0x11C0;
+  constexpr uint8_t  VP_MSGSTR4_LEN                   = 0x20;
+
+  constexpr uint16_t VP_MARLIN_VERSION                = 0x1A00;
+  constexpr uint8_t VP_MARLIN_VERSION_LEN             = 16;       // there is more space on the display, if needed.
+
+
+  constexpr uint16_t VP_SCREENCHANGE_ASK              = 0x1500;
+  constexpr uint16_t VP_SCREENCHANGE                  = 0x1501;   // Key-Return button to new menu pressed. Data contains target screen in low byte and info in high byte.
+  constexpr uint16_t VP_TEMP_ALL_OFF                  = 0x1502;   // Turn all heaters off. Value arbitrary ;)=
+  constexpr uint16_t VP_SCREENCHANGE_WHENSD           = 0x1503;   // "Print" Button touched -- go only there if there is an SD Card.
+  constexpr uint16_t VP_CONFIRMED                     = 0x1510;   // OK on confirm screen.
+
+  constexpr uint16_t VP_BACK_PAGE                     = 0x1600;
+  constexpr uint16_t VP_SETTINGS                      = 0x1620;
+  // Power loss recovery
+  constexpr uint16_t VP_POWER_LOSS_RECOVERY           = 0x1680;
+  /* -------------------------------0x2000-0x2FFF------------------------------- */
+  // Temperatures.
+  constexpr uint16_t VP_T_E0_Is                       = 0x2000;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E0_Set                      = 0x2004;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E1_Is                       = 0x2008;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E1_Set                      = 0x200B;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E2_Is                       = 0x2010;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E2_Set                      = 0x2014;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E3_Is                       = 0x2018;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E3_Set                      = 0x201B;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E4_Is                       = 0x2020;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E4_Set                      = 0x2024;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E5_Is                       = 0x2028;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E5_Set                      = 0x202B;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E6_Is                       = 0x2030;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E6_Set                      = 0x2034;   // 2 Byte Integer
+  constexpr uint16_t VP_T_E7_Is                       = 0x2038;   // 4 Byte Integer
+  constexpr uint16_t VP_T_E7_Set                      = 0x203B;   // 2 Byte Integer
+
+  constexpr uint16_t VP_T_Bed_Is                      = 0x2040;   // 4 Byte Integer
+  constexpr uint16_t VP_T_Bed_Set                     = 0x2044;   // 2 Byte Integer
+
+  constexpr uint16_t VP_Min_EX_T_E                    = 0x2100;
+
+  constexpr uint16_t VP_Flowrate_E0                   = 0x2200;   // 2 Byte Integer
+  constexpr uint16_t VP_Flowrate_E1                   = 0x2202;   // 2 Byte Integer
+  constexpr uint16_t VP_Flowrate_E2                   = 0x2204;
+  constexpr uint16_t VP_Flowrate_E3                   = 0x2206;
+  constexpr uint16_t VP_Flowrate_E4                   = 0x2208;
+  constexpr uint16_t VP_Flowrate_E5                   = 0x220A;
+  constexpr uint16_t VP_Flowrate_E6                   = 0x220C;
+  constexpr uint16_t VP_Flowrate_E7                   = 0x220E;
+
+  // Move
+  constexpr uint16_t VP_MOVE_X                        = 0x2300;
+  constexpr uint16_t VP_MOVE_Y                        = 0x2302;
+  constexpr uint16_t VP_MOVE_Z                        = 0x2304;
+  constexpr uint16_t VP_MOVE_E0                       = 0x2310;
+  constexpr uint16_t VP_MOVE_E1                       = 0x2312;
+  constexpr uint16_t VP_MOVE_E2                       = 0x2314;
+  constexpr uint16_t VP_MOVE_E3                       = 0x2316;
+  constexpr uint16_t VP_MOVE_E4                       = 0x2318;
+  constexpr uint16_t VP_MOVE_E5                       = 0x231A;
+  constexpr uint16_t VP_MOVE_E6                       = 0x231C;
+  constexpr uint16_t VP_MOVE_E7                       = 0x231E;
+  constexpr uint16_t VP_HOME_ALL                      = 0x2320;
+  constexpr uint16_t VP_MOTOR_LOCK_UNLOK              = 0x2330;
+  constexpr uint16_t VP_MOVE_DISTANCE                 = 0x2334;
+  constexpr uint16_t VP_X_HOME                        = 0x2336;
+  constexpr uint16_t VP_Y_HOME                        = 0x2338;
+  constexpr uint16_t VP_Z_HOME                        = 0x233A;
+
+  // Fan Control Buttons , switch between "off" and "on"
+  constexpr uint16_t VP_FAN0_CONTROL                  = 0x2350;
+  constexpr uint16_t VP_FAN1_CONTROL                  = 0x2352;
+  constexpr uint16_t VP_FAN2_CONTROL                  = 0x2354;
+  constexpr uint16_t VP_FAN3_CONTROL                  = 0x2356;
+  constexpr uint16_t VP_FAN4_CONTROL                  = 0x2358;
+  constexpr uint16_t VP_FAN5_CONTROL                  = 0x235A;
+
+  constexpr uint16_t VP_LANGUAGE_CHANGE               = 0x2380;
+  constexpr uint16_t VP_LANGUAGE_CHANGE1              = 0x2382;
+  constexpr uint16_t VP_LANGUAGE_CHANGE2              = 0x2384;
+  constexpr uint16_t VP_LANGUAGE_CHANGE3              = 0x2386;
+  constexpr uint16_t VP_LANGUAGE_CHANGE4              = 0x2388;
+  constexpr uint16_t VP_LANGUAGE_CHANGE5              = 0x238A;
+
+  // LEVEL
+  constexpr uint16_t VP_LEVEL_POINT                   = 0x2400;
+  constexpr uint16_t VP_MESH_LEVEL_POINT              = 0x2410;
+  constexpr uint16_t VP_MESH_LEVEL_ADJUST             = 0x2412;
+  constexpr uint16_t VP_MESH_LEVEL_DIP                = 0x2414;
+  constexpr uint16_t VP_MESH_LEVEL_POINT_X            = 0x2416;
+  constexpr uint16_t VP_MESH_LEVEL_POINT_Y            = 0x2418;
+  constexpr uint16_t VP_LEVEL_BUTTON                  = 0x2420;
+  constexpr uint16_t VP_MESH_LEVEL_POINT_DIS          = 0x2422;
+  constexpr uint16_t VP_MESH_LEVEL_BACK               = 0x2424;
+
+  constexpr uint16_t VP_E0_FILAMENT_LOAD_UNLOAD       = 0x2500;
+  constexpr uint16_t VP_E1_FILAMENT_LOAD_UNLOAD       = 0x2504;
+  constexpr uint16_t VP_LOAD_Filament                 = 0x2508;
+  // constexpr uint16_t VP_LOAD_UNLOAD_Cancle            = 0x250A;
+  constexpr uint16_t VP_UNLOAD_Filament               = 0x250B;
+  constexpr uint16_t VP_Filament_distance             = 0x2600;
+  constexpr uint16_t VP_Filament_speed                = 0x2604;
+  constexpr uint16_t VP_MIN_EX_T                      = 0x2606;
+
+  constexpr uint16_t VP_E1_Filament_distance          = 0x2614;
+  constexpr uint16_t VP_E1_Filament_speed             = 0x2616;
+  constexpr uint16_t VP_E1_MIN_EX_T                   = 0x2618;
+
+  constexpr uint16_t VP_Fan0_Percentage               = 0x2700;   // 2 Byte Integer (0..100)
+  constexpr uint16_t VP_Fan1_Percentage               = 0x2702;   // 2 Byte Integer (0..100)
+  constexpr uint16_t VP_Fan2_Percentage               = 0x2704;   // 2 Byte Integer (0..100)
+  constexpr uint16_t VP_Fan3_Percentage               = 0x2706;   // 2 Byte Integer (0..100)
+  constexpr uint16_t VP_Feedrate_Percentage           = 0x2708;   // 2 Byte Integer (0..100)
+
+  // Fan status
+  constexpr uint16_t VP_FAN0_STATUS                   = 0x2710;
+  constexpr uint16_t VP_FAN1_STATUS                   = 0x2712;
+  constexpr uint16_t VP_FAN2_STATUS                   = 0x2714;
+  constexpr uint16_t VP_FAN3_STATUS                   = 0x2716;
+
+  // Step per mm
+  constexpr uint16_t VP_X_STEP_PER_MM                 = 0x2900;   // at the moment , 2 byte unsigned int , 0~1638.4
+  constexpr uint16_t VP_Y_STEP_PER_MM                 = 0x2904;
+  constexpr uint16_t VP_Z_STEP_PER_MM                 = 0x2908;
+  constexpr uint16_t VP_E0_STEP_PER_MM                = 0x2910;
+  constexpr uint16_t VP_E1_STEP_PER_MM                = 0x2912;
+  constexpr uint16_t VP_E2_STEP_PER_MM                = 0x2914;
+  constexpr uint16_t VP_E3_STEP_PER_MM                = 0x2916;
+  constexpr uint16_t VP_E4_STEP_PER_MM                = 0x2918;
+  constexpr uint16_t VP_E5_STEP_PER_MM                = 0x291A;
+  constexpr uint16_t VP_E6_STEP_PER_MM                = 0x291C;
+  constexpr uint16_t VP_E7_STEP_PER_MM                = 0x291E;
+
+  constexpr uint16_t VP_X_MAX_SPEED                   = 0x2A00;
+  constexpr uint16_t VP_Y_MAX_SPEED                   = 0x2A04;
+  constexpr uint16_t VP_Z_MAX_SPEED                   = 0x2A08;
+  constexpr uint16_t VP_E0_MAX_SPEED                  = 0x2A0C;
+  constexpr uint16_t VP_E1_MAX_SPEED                  = 0x2A10;
+
+  constexpr uint16_t VP_X_ACC_MAX_SPEED               = 0x2A28;
+  constexpr uint16_t VP_Y_ACC_MAX_SPEED               = 0x2A2C;
+  constexpr uint16_t VP_Z_ACC_MAX_SPEED               = 0x2A30;
+  constexpr uint16_t VP_E0_ACC_MAX_SPEED              = 0x2A34;
+  constexpr uint16_t VP_E1_ACC_MAX_SPEED              = 0x2A38;
+
+  constexpr uint16_t VP_TRAVEL_SPEED                  = 0x2A3C;
+  constexpr uint16_t VP_FEEDRATE_MIN_SPEED            = 0x2A40;
+  constexpr uint16_t VP_T_F_SPEED                     = 0x2A44;
+  constexpr uint16_t VP_ACC_SPEED                     = 0x2A48;
+
+  /* -------------------------------0x3000-0x3FFF------------------------------- */
+  // Buttons on the SD-Card File listing.
+  constexpr uint16_t VP_SD_ScrollEvent                = 0x3020; // Data: 0 for "up a directory", numbers are the amount to scroll, e.g -1 one up, 1 one down
+  constexpr uint16_t VP_SD_FileSelected               = 0x3022; // Number of file field selected.
+  constexpr uint16_t VP_SD_FileSelectConfirm          = 0x3024; // (This is a virtual VP and emulated by the Confirm Screen when a file has been confirmed)
+  constexpr uint16_t VP_SD_ResumePauseAbort           = 0x3026; // Resume(Data=0), Pause(Data=1), Abort(Data=2) SD Card prints
+  constexpr uint16_t VP_SD_AbortPrintConfirmed        = 0x3028; // Abort print confirmation (virtual, will be injected by the confirm dialog)
+  constexpr uint16_t VP_SD_Print_Setting              = 0x3040;
+  constexpr uint16_t VP_SD_Print_LiveAdjustZ          = 0x3050; // Data: 0 down, 1 up
+  constexpr uint16_t VP_SD_Print_LiveAdjustZ_Confirm  = 0x3060;
+  constexpr uint16_t VP_ZOffset_Distance              = 0x3070;
+  constexpr uint16_t VP_ZOffset_DE_DIS                = 0x3080;
+  // SDCard File Listing
+  constexpr uint16_t VP_SD_FileName_LEN = 32;                   // LEN is shared for all entries.
+  constexpr uint16_t DGUS_SD_FILESPERSCREEN = 10;               // FIXME move that info to the display and read it from there.
+  constexpr uint16_t VP_SD_FileName0                  = 0x3100;
+  constexpr uint16_t VP_SD_FileName1                  = 0x3120;
+  constexpr uint16_t VP_SD_FileName2                  = 0x3140;
+  constexpr uint16_t VP_SD_FileName3                  = 0x3160;
+  constexpr uint16_t VP_SD_FileName4                  = 0x3180;
+  constexpr uint16_t VP_SD_FileName5                  = 0x31A0;
+  constexpr uint16_t VP_SD_FileName6                  = 0x31C0;
+  constexpr uint16_t VP_SD_FileName7                  = 0x31E0;
+  constexpr uint16_t VP_SD_FileName8                  = 0x3200;
+  constexpr uint16_t VP_SD_FileName9                  = 0x3220;
+
+  constexpr uint16_t VP_SD_Print_ProbeOffsetZ         = 0x32A0;
+  constexpr uint16_t VP_SD_Print_Baby                 = 0x32B0;
+  constexpr uint16_t VP_SD_Print_Filename             = 0x32C0;
+
+  // X Y Z Point
+  constexpr uint16_t VP_XPos = 0x3300;  // 4 Byte Fixed point number; format xxx.yy
+  constexpr uint16_t VP_YPos = 0x3302;  // 4 Byte Fixed point number; format xxx.yy
+  constexpr uint16_t VP_ZPos = 0x3304;  // 4 Byte Fixed point number; format xxx.yy
+  constexpr uint16_t VP_EPos = 0x3306;  // 4 Byte Fixed point number; format xxx.yy
+
+  // Print
+  constexpr uint16_t VP_PrintProgress_Percentage      = 0x3330; // 2 Byte Integer (0..100)
+  constexpr uint16_t VP_PrintTime                     = 0x3340;
+  constexpr uint16_t VP_PrintTime_LEN                 = 32;
+  constexpr uint16_t VP_PrintAccTime                  = 0x3360;
+  constexpr uint16_t VP_PrintAccTime_LEN              = 32;
+  constexpr uint16_t VP_PrintsTotal                   = 0x3380;
+  constexpr uint16_t VP_PrintsTotal_LEN               = 16;
+
+  constexpr uint16_t VP_File_Pictutr0                 = 0x3400;
+  constexpr uint16_t VP_File_Pictutr1                 = 0x3402;
+  constexpr uint16_t VP_File_Pictutr2                 = 0x3404;
+  constexpr uint16_t VP_File_Pictutr3                 = 0x3406;
+  constexpr uint16_t VP_File_Pictutr4                 = 0x3408;
+  constexpr uint16_t VP_File_Pictutr5                 = 0x340A;
+  constexpr uint16_t VP_File_Pictutr6                 = 0x340C;
+  constexpr uint16_t VP_File_Pictutr7                 = 0x340E;
+  constexpr uint16_t VP_File_Pictutr8                 = 0x3410;
+  constexpr uint16_t VP_File_Pictutr9                 = 0x3412;
+
+  constexpr uint16_t VP_BED_STATUS                    = 0x341C;
+
+  constexpr uint16_t VP_TMC_X_STEP                    = 0x3430;
+  constexpr uint16_t VP_TMC_Y_STEP                    = 0x3432;
+  constexpr uint16_t VP_TMC_Z_STEP                    = 0x3434;
+
+  constexpr uint16_t VP_TMC_X1_Current                = 0x3436;
+  constexpr uint16_t VP_TMC_Y1_Current                = 0x3438;
+  constexpr uint16_t VP_TMC_X_Current                 = 0x343A;
+  constexpr uint16_t VP_TMC_Y_Current                 = 0x343C;
+  constexpr uint16_t VP_TMC_Z_Current                 = 0x343E;
+  constexpr uint16_t VP_TMC_E0_Current                = 0x3440;
+  constexpr uint16_t VP_TMC_E1_Current                = 0x3442;
+  constexpr uint16_t VP_TMC_Z1_Current                = 0x3444;
+
+
+  constexpr uint16_t VP_PrintTime_H                   = 0x3500;
+  constexpr uint16_t VP_PrintTime_M                   = 0x3502;
+  constexpr uint16_t VP_PrintTime_S                   = 0x3504;
+
+  // PIDs
+  constexpr uint16_t VP_E0_PID_P = 0x3700; // at the moment , 2 byte unsigned int , 0~1638.4
+  constexpr uint16_t VP_E0_PID_I = 0x3702;
+  constexpr uint16_t VP_E0_PID_D = 0x3704;
+  constexpr uint16_t VP_E1_PID_P = 0x3706; // at the moment , 2 byte unsigned int , 0~1638.4
+  constexpr uint16_t VP_E1_PID_I = 0x3708;
+  constexpr uint16_t VP_E1_PID_D = 0x370A;
+  constexpr uint16_t VP_BED_PID_P = 0x3710;
+  constexpr uint16_t VP_BED_PID_I = 0x3712;
+  constexpr uint16_t VP_BED_PID_D = 0x3714;
+
+  constexpr uint16_t VP_EEPROM_CTRL = 0x3720;
+
+  constexpr uint16_t VP_OFFSET_X = 0x3724;
+  constexpr uint16_t VP_OFFSET_Y = 0x3728;
+  constexpr uint16_t VP_OFFSET_Z = 0x372B;
+
+  // PID autotune
+  constexpr uint16_t VP_PID_AUTOTUNE_E0 = 0x3800;
+  constexpr uint16_t VP_PID_AUTOTUNE_E1 = 0x3802;
+  constexpr uint16_t VP_PID_AUTOTUNE_E2 = 0x3804;
+  constexpr uint16_t VP_PID_AUTOTUNE_E3 = 0x3806;
+  constexpr uint16_t VP_PID_AUTOTUNE_E4 = 0x3808;
+  constexpr uint16_t VP_PID_AUTOTUNE_E5 = 0x380A;
+  constexpr uint16_t VP_PID_AUTOTUNE_BED = 0x380C;
+  // Calibrate Z
+  constexpr uint16_t VP_Z_CALIBRATE = 0x3810;
+
+  constexpr uint16_t VP_AutoTurnOffSw = 0x3812;
+  constexpr uint16_t VP_LCD_BLK = 0x3814;
+
+  constexpr uint16_t VP_X_PARK_POS = 0x3900;
+  constexpr uint16_t VP_Y_PARK_POS = 0x3902;
+  constexpr uint16_t VP_Z_PARK_POS = 0x3904;
+
+  /* -------------------------------0x4000-0x4FFF------------------------------- */
+  // Heater Control Buttons , triged between "cool down" and "heat PLA" state
+  constexpr uint16_t VP_E0_CONTROL = 0x4010;
+  constexpr uint16_t VP_E1_CONTROL = 0x4012;
+  //constexpr uint16_t VP_E2_CONTROL = 0x2214;
+  //constexpr uint16_t VP_E3_CONTROL = 0x2216;
+  //constexpr uint16_t VP_E4_CONTROL = 0x2218;
+  //constexpr uint16_t VP_E5_CONTROL = 0x221A;
+  constexpr uint16_t VP_BED_CONTROL = 0x401C;
+
+  // Preheat
+  constexpr uint16_t VP_E0_BED_PREHEAT = 0x4020;
+  constexpr uint16_t VP_E1_BED_PREHEAT = 0x4022;
+  //constexpr uint16_t VP_E2_BED_PREHEAT = 0x4024;
+  //constexpr uint16_t VP_E3_BED_PREHEAT = 0x4026;
+  //constexpr uint16_t VP_E4_BED_PREHEAT = 0x4028;
+  //constexpr uint16_t VP_E5_BED_PREHEAT = 0x402A;
+
+  // Filament load and unload
+  // constexpr uint16_t VP_E0_FILAMENT_LOAD_UNLOAD = 0x4030;
+  // constexpr uint16_t VP_E1_FILAMENT_LOAD_UNLOAD = 0x4032;
+
+  // Settings store , reset
+
+  // Level data
+  constexpr uint16_t VP_Level_Point_One_X              = 0x4100;
+  constexpr uint16_t VP_Level_Point_One_Y              = 0x4102;
+  constexpr uint16_t VP_Level_Point_Two_X              = 0x4104;
+  constexpr uint16_t VP_Level_Point_Two_Y              = 0x4106;
+  constexpr uint16_t VP_Level_Point_Three_X            = 0x4108;
+  constexpr uint16_t VP_Level_Point_Three_Y            = 0x410A;
+  constexpr uint16_t VP_Level_Point_Four_X             = 0x410C;
+  constexpr uint16_t VP_Level_Point_Four_Y             = 0x410E;
+  constexpr uint16_t VP_Level_Point_Five_X             = 0x4110;
+  constexpr uint16_t VP_Level_Point_Five_Y             = 0x4112;
+
+
+  /* H43 Version */
+  constexpr uint16_t VP_MKS_H43_VERSION                = 0x4A00;   // MKS H43 V1.0.0
+  constexpr uint16_t VP_MKS_H43_VERSION_LEN            = 16;
+  constexpr uint16_t VP_MKS_H43_UpdataVERSION          = 0x4A10;   // MKS H43 V1.0.0
+  constexpr uint16_t VP_MKS_H43_UpdataVERSION_LEN      = 16;
+
+  /* -------------------------------0x5000-0xFFFF------------------------------- */
+  constexpr uint16_t VP_HOME_Dis                      = 0x5000;
+  constexpr uint16_t VP_Setting_Dis                   = 0x5010;
+  constexpr uint16_t VP_Tool_Dis                      = 0x5020;
+  constexpr uint16_t VP_Printing_Dis                  = 0x5030;
+
+  constexpr uint16_t VP_Language_Dis                  = 0x5080;
+  constexpr uint16_t VP_LossPoint_Dis                 = 0x5090;
+
+  constexpr uint16_t VP_PrintPauseConfig_Dis          = 0x5120;
+  constexpr uint16_t VP_MotorPluse_Dis                = 0x5140;
+  constexpr uint16_t VP_MotorMaxSpeed_Dis             = 0x5150;
+  constexpr uint16_t VP_MotorMaxAcc_Dis               = 0x5160;
+
+  constexpr uint16_t VP_X_Pluse_Dis                   = 0x5170;
+  constexpr uint16_t VP_Y_Pluse_Dis                   = 0x5180;
+  constexpr uint16_t VP_Z_Pluse_Dis                   = 0x5190;
+  constexpr uint16_t VP_E0_Pluse_Dis                  = 0x51A0;
+  constexpr uint16_t VP_E1_Pluse_Dis                  = 0x51B0;
+
+  constexpr uint16_t VP_X_Max_Speed_Dis               = 0x5280;
+  constexpr uint16_t VP_Y_Max_Speed_Dis               = 0x5290;
+  constexpr uint16_t VP_Z_Max_Speed_Dis               = 0x52A0;
+  constexpr uint16_t VP_E0_Max_Speed_Dis              = 0x52B0;
+  constexpr uint16_t VP_E1_Max_Speed_Dis              = 0x52C0;
+
+  constexpr uint16_t VP_X_Max_Acc_Speed_Dis           = 0x51E0;
+  constexpr uint16_t VP_Y_Max_Acc_Speed_Dis           = 0x51F0;
+  constexpr uint16_t VP_Z_Max_Acc_Speed_Dis           = 0x5200;
+  constexpr uint16_t VP_E0_Max_Acc_Speed_Dis          = 0x5210;
+  constexpr uint16_t VP_E1_Max_Acc_Speed_Dis          = 0x5220;
+
+
+  constexpr uint16_t VP_PrintTime_Dis                 = 0x5470;
+  constexpr uint16_t VP_E0_Temp_Dis                   = 0x5310;
+  constexpr uint16_t VP_E1_Temp_Dis                   = 0x5320;
+  constexpr uint16_t VP_HB_Temp_Dis                   = 0x5330;
+  constexpr uint16_t VP_Feedrate_Dis                  = 0x5350;
+  constexpr uint16_t VP_PrintAcc_Dis                  = 0x5340;
+  constexpr uint16_t VP_Fan_Speed_Dis                 = 0x5360;
+
+  constexpr uint16_t VP_Min_Ex_Temp_Dis               = 0x5380;
+
+
+  constexpr uint16_t VP_X_PARK_POS_Dis                = 0x53E0;
+  constexpr uint16_t VP_Y_PARK_POS_Dis                = 0x53F0;
+  constexpr uint16_t VP_Z_PARK_POS_Dis                = 0x5400;
+
+
+  constexpr uint16_t VP_TravelAcc_Dis                 = 0x5440;
+  constexpr uint16_t VP_FeedRateMin_Dis               = 0x5450;
+  constexpr uint16_t VP_TravelFeeRateMin_Dis          = 0x5460;
+  constexpr uint16_t VP_ACC_Dis                       = 0x5480;
+
+  constexpr uint16_t VP_Extrusion_Dis                 = 0x5230;
+  constexpr uint16_t VP_HeatBed_Dis                   = 0x5240;
+
+  constexpr uint16_t VP_Printting_Dis                 = 0x5430;
+  constexpr uint16_t VP_FactoryDefaults_Dis           = 0x54C0;
+  constexpr uint16_t VP_StoreSetting_Dis              = 0x54B0;
+  constexpr uint16_t VP_Info_EEPROM_2_Dis             = 0x54D0;
+  constexpr uint16_t VP_Info_EEPROM_1_Dis             = 0x54E0;
+
+  constexpr uint16_t VP_AutoLevel_1_Dis               = 0x55F0;
+
+  constexpr uint16_t VP_TMC_X_Step_Dis                = 0x5530;
+  constexpr uint16_t VP_TMC_Y_Step_Dis                = 0x5540;
+  constexpr uint16_t VP_TMC_Z_Step_Dis                = 0x5550;
+  constexpr uint16_t VP_TMC_X1_Current_Dis            = 0x5560;
+  constexpr uint16_t VP_TMC_Y1_Current_Dis            = 0x5570;
+  constexpr uint16_t VP_TMC_X_Current_Dis             = 0x5580;
+  constexpr uint16_t VP_TMC_Y_Current_Dis             = 0x5590;
+  constexpr uint16_t VP_TMC_Z_Current_Dis             = 0x55A0;
+  constexpr uint16_t VP_TMC_E0_Current_Dis            = 0x55B0;
+  constexpr uint16_t VP_TMC_E1_Current_Dis            = 0x55C0;
+  constexpr uint16_t VP_TMC_Z1_Current_Dis            = 0x55E0;
+
+  constexpr uint16_t VP_AutoLEVEL_INFO1               = 0x5600;
+  constexpr uint16_t VP_EX_TEMP_INFO1_Dis             = 0x5610;
+  constexpr uint16_t VP_EX_TEMP_INFO2_Dis             = 0x5620;
+  constexpr uint16_t VP_EX_TEMP_INFO3_Dis             = 0x5630;
+  constexpr uint16_t VP_LCD_BLK_Dis                   = 0x56A0;
+  constexpr uint16_t VP_Info_PrinfFinsh_1_Dis         = 0x5C00;
+  constexpr uint16_t VP_Info_PrinfFinsh_2_Dis         = 0x5C10;
+
+  constexpr uint16_t VP_Length_Dis                    = 0x5B00;
+
+  constexpr uint16_t VP_PrintConfrim_Info_Dis         = 0x5B90;
+  constexpr uint16_t VP_StopPrintConfrim_Info_Dis     = 0x5B80;
+
+  constexpr uint16_t VP_Point_One_Dis                 = 0x5BA0;
+  constexpr uint16_t VP_Point_Two_Dis                 = 0x5BB0;
+  constexpr uint16_t VP_Point_Three_Dis               = 0x5BC0;
+  constexpr uint16_t VP_Point_Four_Dis                = 0x5BD0;
+  constexpr uint16_t VP_Point_Five_Dis                = 0x5BE0;
+
+  constexpr uint16_t VP_Print_Dis                     = 0x5250;
+
+  constexpr uint16_t VP_About_Dis                     = 0x5A00;
+  constexpr uint16_t VP_Config_Dis                    = 0x5A10;
+  constexpr uint16_t VP_Filament_Dis                  = 0x5A20;
+  constexpr uint16_t VP_Move_Dis                      = 0x5A30;
+  constexpr uint16_t VP_Level_Dis                     = 0x5A50;
+  constexpr uint16_t VP_Speed_Dis                     = 0x5A70;
+  constexpr uint16_t VP_InOut_Dis                     = 0x5A80;
+
+  constexpr uint16_t VP_MotorConfig_Dis               = 0x5100;
+  constexpr uint16_t VP_LevelConfig_Dis               = 0x5110;
+  constexpr uint16_t VP_Advance_Dis                   = 0x5130;
+  constexpr uint16_t VP_TemperatureConfig_Dis         = 0x5390;
+
+#endif // MKS_FINSH

Marlin/src/lcd/extui/lib/dgus/mks/DGUSScreenHandler.h

@@ -0,0 +1,307 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../DGUSDisplay.h"
+#include "../DGUSVPVariable.h"
+#include "../DGUSDisplayDef.h"
+
+#include "../../../../../inc/MarlinConfig.h"
+
+enum DGUSLCD_Screens : uint8_t;
+
+class DGUSScreenHandler {
+public:
+  DGUSScreenHandler() = default;
+
+  static bool loop();
+
+  // Send all 4 strings that are displayed on the infoscreen, confirmation screen and kill screen
+  // The bools specifing whether the strings are in RAM or FLASH.
+  static void sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  static void HandleUserConfirmationPopUp(uint16_t ConfirmVP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  static void sendinfoscreen_ch_mks(const uint16_t* line1, const uint16_t* line2, const uint16_t* line3, const uint16_t* line4);
+  static void sendinfoscreen_en_mks(const char* line1, const char* line2, const char* line3, const char* line4) ;
+  static void sendinfoscreen_mks(const void* line1, const void* line2, const void* line3, const void* line4,uint16_t language);
+
+  // "M117" Message -- msg is a RAM ptr.
+  static void setstatusmessage(const char* msg);
+  // The same for messages from Flash
+  static void setstatusmessagePGM(PGM_P const msg);
+  // Callback for VP "Display wants to change screen on idle printer"
+  static void ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_ptr);
+  // Callback for VP "Screen has been changed"
+  static void ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr);
+
+  static void ScreenBackChange(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Callback for VP "All Heaters Off"
+  static void HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change this temperature"
+  static void HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change Flowrate"
+  static void HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    // Hook for manual move option
+    static void HandleManualMoveOption(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+
+  static void EEPROM_CTRL(DGUS_VP_Variable &var, void *val_ptr);
+  static void LanguageChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetOffsetValue(DGUS_VP_Variable &var, void *val_ptr);
+  static void Level_Ctrl_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void MeshLevel(DGUS_VP_Variable &var, void *val_ptr);
+  static void MeshLevelDistanceConfig(DGUS_VP_Variable &var, void *val_ptr);
+  static void ManualAssistLeveling(DGUS_VP_Variable &var, void *val_ptr);
+  static void ZoffsetConfirm(DGUS_VP_Variable &var, void *val_ptr);
+  static void Z_offset_select(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetManualMovestep(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetZoffsetDistance(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetMinExtrudeTemp(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetParkPos_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleGetExMinTemp_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void DGUS_LanguageDisplay(uint8_t var);
+  static void TMC_ChangeConfig(DGUS_VP_Variable &var, void *val_ptr);
+  static void GetTurnOffCtrl(DGUS_VP_Variable &var, void *val_ptr);
+  static void LanguagePInit(void);
+  static void DGUS_Runout_Idle(void);
+  static void DGUS_RunoutInit(void);
+  static void DGUS_ExtrudeLoadInit(void);
+  static void LCD_BLK_Adjust(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Hook for manual move.
+  static void HandleManualMove(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for manual extrude.
+  static void HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for motor lock and unlook
+  static void HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    // Hook for power loss recovery.
+    static void HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for settings
+  static void HandleSettings(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, void *val_ptr);
+
+  static void HandleStepPerMMChanged_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMExtruderChanged_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleMaxSpeedChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleExtruderMaxSpeedChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleAccChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleMaxAccChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleExtruderAccChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleChangeLevelPoint_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleTravelAccChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleFeedRateMinChange_MKS(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleMin_T_F_MKS(DGUS_VP_Variable &var, void *val_ptr);
+
+  #if HAS_PID_HEATING
+    // Hook for "Change this temperature PID para"
+    static void HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for PID autotune
+    static void HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_BED_PROBE
+    // Hook for "Change probe offset z"
+    static void HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(BABYSTEPPING)
+    // Hook for live z adjust action
+    static void HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_FAN
+    // Hook for fan control
+    static void HandleFanControl(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for heater control
+  static void HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_PREHEAT_UI)
+    // Hook for preheat
+    static void HandlePreheat(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+    // Hook for filament load and unload filament option
+    static void HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for filament load and unload
+    static void HandleFilamentLoadUnload(DGUS_VP_Variable &var);
+
+    static void MKS_FilamentLoad(DGUS_VP_Variable &var, void *val_ptr);
+    static void MKS_FilamentUnLoad(DGUS_VP_Variable &var, void *val_ptr);
+    static void MKS_LOAD_UNLOAD_IDLE();
+    static void MKS_LOAD_Cancle(DGUS_VP_Variable &var, void *val_ptr);
+    static void GetManualFilament(DGUS_VP_Variable &var, void *val_ptr);
+    static void GetManualFilamentSpeed(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+
+  #if ENABLED(SDSUPPORT)
+    // Callback for VP "Display wants to change screen when there is a SD card"
+    static void ScreenChangeHookIfSD(DGUS_VP_Variable &var, void *val_ptr);
+    // Scroll buttons on the file listing screen.
+    static void DGUSLCD_SD_ScrollFilelist(DGUS_VP_Variable &var, void *val_ptr);
+    // File touched.
+    static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+    // start print after confirmation received.
+    static void DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the pause, resume or abort button.
+    static void DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User confirmed the abort action
+    static void DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the tune button
+    static void DGUSLCD_SD_PrintTune(DGUS_VP_Variable &var, void *val_ptr);
+    // Send a single filename to the display.
+    static void DGUSLCD_SD_SendFilename(DGUS_VP_Variable &var);
+    // Marlin informed us that a new SD has been inserted.
+    static void SDCardInserted();
+    // Marlin informed us that the SD Card has been removed().
+    static void SDCardRemoved();
+    // Marlin informed us about a bad SD Card.
+    static void SDCardError();
+    // Marlin informed us about SD print completion.
+    static void SDPrintingFinished();
+  #endif
+
+  // OK Button the Confirm screen.
+  static void ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Update data after went to new screen (by display or by GotoScreen)
+  // remember: store the last-displayed screen, so it can get returned to.
+  // (e.g for pop up messages)
+  static void UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup=false);
+
+  // Recall the remembered screen.
+  static void PopToOldScreen();
+
+  // Make the display show the screen and update all VPs in it.
+  static void GotoScreen(DGUSLCD_Screens screen, bool ispopup = false);
+
+  static void UpdateScreenVPData();
+
+  // Helpers to convert and transfer data to the display.
+  static void DGUSLCD_SendWordValueToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintProgressToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var);
+
+  static void DGUSLCD_SendPrintTimeToDisplay_MKS(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendBabyStepToDisplay_MKS(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendFanToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendGbkToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplay_Language_MKS(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendTMCStepValue(DGUS_VP_Variable &var);
+
+  #if ENABLED(PRINTCOUNTER)
+    static void DGUSLCD_SendPrintAccTimeToDisplay(DGUS_VP_Variable &var);
+    static void DGUSLCD_SendPrintsTotalToDisplay(DGUS_VP_Variable &var);
+  #endif
+  #if HAS_FAN
+    static void DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+  static void DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var);
+  #if ENABLED(DGUS_UI_WAITING)
+    static void DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+
+  // Send a value from 0..100 to a variable with a range from 0..255
+  static void DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr);
+
+  static void DGUSLCD_SetUint8(DGUS_VP_Variable &var, void *val_ptr);
+
+  template<typename T>
+  static void DGUSLCD_SetValueDirectly(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!var.memadr) return;
+    union { unsigned char tmp[sizeof(T)]; T t; } x;
+    unsigned char *ptr = (unsigned char*)val_ptr;
+    LOOP_L_N(i, sizeof(T)) x.tmp[i] = ptr[sizeof(T) - i - 1];
+    *(T*)var.memadr = x.t;
+  }
+
+  // Send a float value to the display.
+  // Display will get a 4-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsLongValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (long)f);
+    }
+  }
+
+  // Send a float value to the display.
+  // Display will get a 2-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsIntValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      DEBUG_ECHOLNPAIR_F(" >> ", f, 6);
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (int16_t)f);
+    }
+  }
+
+  // Force an update of all VP on the current screen.
+  static inline void ForceCompleteUpdate() { update_ptr = 0; ScreenComplete = false; }
+  // Has all VPs sent to the screen
+  static inline bool IsScreenComplete() { return ScreenComplete; }
+
+  static inline DGUSLCD_Screens getCurrentScreen() { return current_screen; }
+
+  static inline void SetupConfirmAction( void (*f)()) { confirm_action_cb = f; }
+
+private:
+  static DGUSLCD_Screens current_screen;  //< currently on screen
+  static constexpr uint8_t NUM_PAST_SCREENS = 4;
+  static DGUSLCD_Screens past_screens[NUM_PAST_SCREENS]; //< LIFO with past screens for the "back" button.
+
+  static uint8_t update_ptr;      //< Last sent entry in the VPList for the actual screen.
+  static uint16_t skipVP;         //< When updating the screen data, skip this one, because the user is interacting with it.
+  static bool ScreenComplete;     //< All VPs sent to screen?
+
+  static uint16_t ConfirmVP;      //< context for confirm screen (VP that will be emulated-sent on "OK").
+
+  #if ENABLED(SDSUPPORT)
+    static int16_t top_file;      //< file on top of file chooser
+    static int16_t file_to_print; //< touched file to be confirmed
+  #endif
+
+  static void (*confirm_action_cb)();
+};
+
+#define MKS_Language_Choose   0x00
+#define MKS_Language_NoChoose 0x01
+
+#define MKS_SimpleChinese     0
+#define MKS_English           1
+extern uint8_t DGUSLanguageSwitch;
+extern bool DGUSAutoTurnOff;
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #define PLR_SCREEN_RECOVER MKSLCD_SCREEN_PRINT
+  #define PLR_SCREEN_CANCEL MKSLCD_SCREEN_HOME
+#endif

Marlin/src/lcd/extui/lib/dgus/origin/DGUSDisplayDef.cpp

@@ -20,7 +20,9 @@
  *
  */
 
-/* DGUS implementation written by coldtobi in 2019 for Marlin */
+/**
+ * lcd/extui/lib/dgus/origin/DGUSDisplayDef.cpp
+ */
 
 #include "../../../../../inc/MarlinConfigPre.h"
 
@@ -87,7 +89,7 @@ const uint16_t VPList_Status[] PROGMEM = {
 };
 
 const uint16_t VPList_Status2[] PROGMEM = {
-  /* VP_M117, for completeness, but it cannot be auto-uploaded */
+  // VP_M117, for completeness, but it cannot be auto-uploaded
   #if HOTENDS >= 1
     VP_Flowrate_E0,
   #endif

Marlin/src/lcd/extui/lib/dgus/origin/DGUSScreenHandler.cpp

@@ -0,0 +1,418 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(DGUS_LCD_UI_ORIGIN)
+
+#include "../DGUSScreenHandler.h"
+
+#include "../../../../../MarlinCore.h"
+#include "../../../../../gcode/queue.h"
+#include "../../../../../libs/duration_t.h"
+#include "../../../../../module/settings.h"
+#include "../../../../../module/temperature.h"
+#include "../../../../../module/motion.h"
+#include "../../../../../module/planner.h"
+#include "../../../../../module/printcounter.h"
+#include "../../../../../sd/cardreader.h"
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #include "../../../../feature/powerloss.h"
+#endif
+
+#if ENABLED(SDSUPPORT)
+
+  void DGUSScreenHandler::DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t touched_nr = (int16_t)swap16(*(uint16_t*)val_ptr) + top_file;
+    if (touched_nr > filelist.count()) return;
+    if (!filelist.seek(touched_nr)) return;
+
+    if (filelist.isDir()) {
+      filelist.changeDir(filelist.filename());
+      top_file = 0;
+      ForceCompleteUpdate();
+      return;
+    }
+
+    #if ENABLED(DGUS_PRINT_FILENAME)
+      // Send print filename
+      dgusdisplay.WriteVariable(VP_SD_Print_Filename, filelist.filename(), VP_SD_FileName_LEN, true);
+    #endif
+
+    // Setup Confirmation screen
+    file_to_print = touched_nr;
+
+    HandleUserConfirmationPopUp(VP_SD_FileSelectConfirm, nullptr, PSTR("Print file"), filelist.filename(), PSTR("from SD Card?"), true, true, false, true);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!filelist.seek(file_to_print)) return;
+    ExtUI::printFile(filelist.shortFilename());
+    GotoScreen(DGUSLCD_SCREEN_STATUS);
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr) {
+
+    if (!ExtUI::isPrintingFromMedia()) return; // avoid race condition when user stays in this menu and printer finishes.
+    switch (swap16(*(uint16_t*)val_ptr)) {
+      case 0: { // Resume
+        if (ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::resumePrint();
+        }
+      } break;
+
+      case 1: // Pause
+
+        GotoScreen(MKSLCD_SCREEN_PAUSE);
+        if (!ExtUI::isPrintingFromMediaPaused()) {
+          ExtUI::pausePrint();
+          //ExtUI::mks_pausePrint();
+        }
+        break;
+      case 2: // Abort
+        HandleUserConfirmationPopUp(VP_SD_AbortPrintConfirmed, nullptr, PSTR("Abort printing"), filelist.filename(), PSTR("?"), true, true, false, true);
+        break;
+    }
+  }
+
+  void DGUSScreenHandler::DGUSLCD_SD_SendFilename(DGUS_VP_Variable& var) {
+    uint16_t target_line = (var.VP - VP_SD_FileName0) / VP_SD_FileName_LEN;
+    if (target_line > DGUS_SD_FILESPERSCREEN) return;
+    char tmpfilename[VP_SD_FileName_LEN + 1] = "";
+    var.memadr = (void*)tmpfilename;
+
+    if (filelist.seek(top_file + target_line)) {
+      snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s%c"), filelist.filename(), filelist.isDir() ? '/' : 0); // snprintf_P(tmpfilename, VP_SD_FileName_LEN, PSTR("%s"), filelist.filename());
+    }
+    DGUSLCD_SendStringToDisplay(var);
+  }
+
+  void DGUSScreenHandler::SDCardInserted() {
+    top_file = 0;
+    filelist.refresh();
+    auto cs = getCurrentScreen();
+    if (cs == DGUSLCD_SCREEN_MAIN || cs == DGUSLCD_SCREEN_STATUS)
+      GotoScreen(DGUSLCD_SCREEN_SDFILELIST);
+  }
+
+  void DGUSScreenHandler::SDCardRemoved() {
+    if (current_screen == DGUSLCD_SCREEN_SDFILELIST
+        || (current_screen == DGUSLCD_SCREEN_CONFIRM && (ConfirmVP == VP_SD_AbortPrintConfirmed || ConfirmVP == VP_SD_FileSelectConfirm))
+        || current_screen == DGUSLCD_SCREEN_SDPRINTMANIPULATION
+    ) GotoScreen(DGUSLCD_SCREEN_MAIN);
+  }
+
+#endif // SDSUPPORT
+
+void DGUSScreenHandler::ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr) {
+  uint8_t *tmp = (uint8_t*)val_ptr;
+
+  // The keycode in target is coded as <from-frame><to-frame>, so 0x0100A means
+  // from screen 1 (main) to 10 (temperature). DGUSLCD_SCREEN_POPUP is special,
+  // meaning "return to previous screen"
+  DGUSLCD_Screens target = (DGUSLCD_Screens)tmp[1];
+
+  DEBUG_ECHOLNPAIR("\n DEBUG target", target);
+
+  if (target == DGUSLCD_SCREEN_POPUP) {
+    // Special handling for popup is to return to previous menu
+    if (current_screen == DGUSLCD_SCREEN_POPUP && confirm_action_cb) confirm_action_cb();
+    PopToOldScreen();
+    return;
+  }
+
+  UpdateNewScreen(target);
+
+  #ifdef DEBUG_DGUSLCD
+    if (!DGUSLCD_FindScreenVPMapList(target)) DEBUG_ECHOLNPAIR("WARNING: No screen Mapping found for ", target);
+  #endif
+}
+
+void DGUSScreenHandler::HandleManualMove(DGUS_VP_Variable &var, void *val_ptr) {
+  DEBUG_ECHOLNPGM("HandleManualMove");
+
+  int16_t movevalue = swap16(*(uint16_t*)val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    if (movevalue) {
+      const uint16_t choice = *(uint16_t*)var.memadr;
+      movevalue = movevalue < 0 ? -choice : choice;
+    }
+  #endif
+  char axiscode;
+  unsigned int speed = 1500; // FIXME: get default feedrate for manual moves, dont hardcode.
+
+  switch (var.VP) {
+    default: return;
+
+    case VP_MOVE_X:
+      axiscode = 'X';
+      if (!ExtUI::canMove(ExtUI::axis_t::X)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Y:
+      axiscode = 'Y';
+      if (!ExtUI::canMove(ExtUI::axis_t::Y)) goto cannotmove;
+      break;
+
+    case VP_MOVE_Z:
+      axiscode = 'Z';
+      speed = 300; // default to 5mm/s
+      if (!ExtUI::canMove(ExtUI::axis_t::Z)) goto cannotmove;
+      break;
+
+    case VP_HOME_ALL: // only used for homing
+      axiscode  = '\0';
+      movevalue = 0; // ignore value sent from display, this VP is _ONLY_ for homing.
+      break;
+  }
+
+  if (!movevalue) {
+    // homing
+    DEBUG_ECHOPAIR(" homing ", axiscode);
+    char buf[6] = "G28 X";
+    buf[4] = axiscode;
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓");
+    ForceCompleteUpdate();
+    return;
+  }
+  else {
+    // movement
+    DEBUG_ECHOPAIR(" move ", axiscode);
+    bool old_relative_mode = relative_mode;
+    if (!relative_mode) {
+      //DEBUG_ECHOPGM(" G91");
+      queue.enqueue_now_P(PSTR("G91"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+    char buf[32]; // G1 X9999.99 F12345
+    unsigned int backup_speed = MMS_TO_MMM(feedrate_mm_s);
+    char sign[] = "\0";
+    int16_t value = movevalue / 100;
+    if (movevalue < 0) { value = -value; sign[0] = '-'; }
+    int16_t fraction = ABS(movevalue) % 100;
+    snprintf_P(buf, 32, PSTR("G0 %c%s%d.%02d F%d"), axiscode, sign, value, fraction, speed);
+    //DEBUG_ECHOPAIR(" ", buf);
+    queue.enqueue_one_now(buf);
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (backup_speed != speed) {
+      snprintf_P(buf, 32, PSTR("G0 F%d"), backup_speed);
+      queue.enqueue_one_now(buf);
+      //DEBUG_ECHOPAIR(" ", buf);
+    }
+    // while (!enqueue_and_echo_command(buf)) idle();
+    //DEBUG_ECHOLNPGM(" ✓ ");
+    if (!old_relative_mode) {
+      //DEBUG_ECHOPGM("G90");
+      queue.enqueue_now_P(PSTR("G90"));
+      //DEBUG_ECHOPGM(" ✓ ");
+    }
+  }
+
+  ForceCompleteUpdate();
+  DEBUG_ECHOLNPGM("manmv done.");
+  return;
+
+  cannotmove:
+    DEBUG_ECHOLNPAIR(" cannot move ", axiscode);
+    return;
+}
+
+#if HAS_PID_HEATING
+  void DGUSScreenHandler::HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr) {
+    uint16_t rawvalue = swap16(*(uint16_t*)val_ptr);
+    DEBUG_ECHOLNPAIR("V1:", rawvalue);
+    float value = (float)rawvalue / 10;
+    DEBUG_ECHOLNPAIR("V2:", value);
+    float newvalue = 0;
+
+    switch (var.VP) {
+      default: return;
+        #if HOTENDS >= 1
+          case VP_E0_PID_P: newvalue = value; break;
+          case VP_E0_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E0_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HOTENDS >= 2
+          case VP_E1_PID_P: newvalue = value; break;
+          case VP_E1_PID_I: newvalue = scalePID_i(value); break;
+          case VP_E1_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+        #if HAS_HEATED_BED
+          case VP_BED_PID_P: newvalue = value; break;
+          case VP_BED_PID_I: newvalue = scalePID_i(value); break;
+          case VP_BED_PID_D: newvalue = scalePID_d(value); break;
+        #endif
+    }
+
+    DEBUG_ECHOLNPAIR_F("V3:", newvalue);
+    *(float *)var.memadr = newvalue;
+
+    skipVP = var.VP; // don't overwrite value the next update time as the display might autoincrement in parallel
+  }
+#endif // HAS_PID_HEATING
+
+#if ENABLED(BABYSTEPPING)
+  void DGUSScreenHandler::HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleLiveAdjustZ");
+    int16_t flag  = swap16(*(uint16_t*)val_ptr),
+            steps = flag ? -20 : 20;
+    ExtUI::smartAdjustAxis_steps(steps, ExtUI::axis_t::Z, true);
+    ForceCompleteUpdate();
+  }
+#endif
+
+#if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+
+  void DGUSScreenHandler::HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr) {
+    DEBUG_ECHOLNPGM("HandleFilamentOption");
+
+    uint8_t e_temp = 0;
+    filament_data.heated = false;
+    uint16_t preheat_option = swap16(*(uint16_t*)val_ptr);
+    if (preheat_option <= 8) {      // Load filament type
+      filament_data.action = 1;
+    }
+    else if (preheat_option >= 10) { // Unload filament type
+      preheat_option -= 10;
+      filament_data.action = 2;
+      filament_data.purge_length = DGUS_FILAMENT_PURGE_LENGTH;
+    }
+    else {                          // Cancel filament operation
+      filament_data.action = 0;
+    }
+
+    switch (preheat_option) {
+      case 0: // Load PLA
+        #ifdef PREHEAT_1_TEMP_HOTEND
+          e_temp = PREHEAT_1_TEMP_HOTEND;
+        #endif
+        break;
+      case 1: // Load ABS
+        TERN_(PREHEAT_2_TEMP_HOTEND, e_temp = PREHEAT_2_TEMP_HOTEND);
+        break;
+      case 2: // Load PET
+        #ifdef PREHEAT_3_TEMP_HOTEND
+          e_temp = PREHEAT_3_TEMP_HOTEND;
+        #endif
+        break;
+      case 3: // Load FLEX
+        #ifdef PREHEAT_4_TEMP_HOTEND
+          e_temp = PREHEAT_4_TEMP_HOTEND;
+        #endif
+        break;
+      case 9: // Cool down
+      default:
+        e_temp = 0;
+        break;
+    }
+
+    if (filament_data.action == 0) { // Go back to utility screen
+      #if HOTENDS >= 1
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E0);
+      #endif
+      #if HOTENDS >= 2
+        thermalManager.setTargetHotend(e_temp, ExtUI::extruder_t::E1);
+      #endif
+      GotoScreen(DGUSLCD_SCREEN_UTILITY);
+    }
+    else { // Go to the preheat screen to show the heating progress
+      switch (var.VP) {
+        default: return;
+          #if HOTENDS >= 1
+            case VP_E0_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E0;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+          #if HOTENDS >= 2
+            case VP_E1_FILAMENT_LOAD_UNLOAD:
+              filament_data.extruder = ExtUI::extruder_t::E1;
+              thermalManager.setTargetHotend(e_temp, filament_data.extruder);
+              break;
+          #endif
+      }
+      GotoScreen(DGUSLCD_SCREEN_FILAMENT_HEATING);
+    }
+  }
+
+  void DGUSScreenHandler::HandleFilamentLoadUnload(DGUS_VP_Variable &var) {
+    DEBUG_ECHOLNPGM("HandleFilamentLoadUnload");
+    if (filament_data.action <= 0) return;
+
+    // If we close to the target temperature, we can start load or unload the filament
+    if (thermalManager.hotEnoughToExtrude(filament_data.extruder) && \
+        thermalManager.targetHotEnoughToExtrude(filament_data.extruder)) {
+      float movevalue = DGUS_FILAMENT_LOAD_LENGTH_PER_TIME;
+
+      if (filament_data.action == 1) { // load filament
+        if (!filament_data.heated) {
+          //GotoScreen(DGUSLCD_SCREEN_FILAMENT_LOADING);
+          filament_data.heated = true;
+        }
+        movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+      }
+      else { // unload filament
+        if (!filament_data.heated) {
+          GotoScreen(DGUSLCD_SCREEN_FILAMENT_UNLOADING);
+          filament_data.heated = true;
+        }
+        // Before unloading extrude to prevent jamming
+        if (filament_data.purge_length >= 0) {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) + movevalue;
+          filament_data.purge_length -= movevalue;
+        }
+        else {
+          movevalue = ExtUI::getAxisPosition_mm(filament_data.extruder) - movevalue;
+        }
+      }
+      ExtUI::setAxisPosition_mm(movevalue, filament_data.extruder);
+    }
+  }
+#endif // DGUS_FILAMENT_LOADUNLOAD
+
+bool DGUSScreenHandler::loop() {
+  dgusdisplay.loop();
+
+  const millis_t ms = millis();
+  static millis_t next_event_ms = 0;
+
+  if (!IsScreenComplete() || ELAPSED(ms, next_event_ms)) {
+    next_event_ms = ms + DGUS_UPDATE_INTERVAL_MS;
+    UpdateScreenVPData();
+  }
+
+  #if ENABLED(SHOW_BOOTSCREEN)
+    static bool booted = false;
+
+    if (!booted && TERN0(POWER_LOSS_RECOVERY, recovery.valid()))
+      booted = true;
+
+    if (!booted && ELAPSED(ms, TERN(USE_MKS_GREEN_UI, 1000, BOOTSCREEN_TIMEOUT)))
+      booted = true;
+  #endif
+  return IsScreenComplete();
+}
+
+#endif // DGUS_LCD_UI_ORIGIN

Marlin/src/lcd/extui/lib/dgus/origin/DGUSScreenHandler.h

@@ -0,0 +1,240 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../DGUSDisplay.h"
+#include "../DGUSVPVariable.h"
+#include "../DGUSDisplayDef.h"
+
+#include "../../../../../inc/MarlinConfig.h"
+
+enum DGUSLCD_Screens : uint8_t;
+
+class DGUSScreenHandler {
+public:
+  DGUSScreenHandler() = default;
+
+  static bool loop();
+
+  // Send all 4 strings that are displayed on the infoscreen, confirmation screen and kill screen
+  // The bools specifing whether the strings are in RAM or FLASH.
+  static void sendinfoscreen(const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  static void HandleUserConfirmationPopUp(uint16_t ConfirmVP, const char* line1, const char* line2, const char* line3, const char* line4, bool l1inflash, bool l2inflash, bool l3inflash, bool liinflash);
+
+  // "M117" Message -- msg is a RAM ptr.
+  static void setstatusmessage(const char* msg);
+  // The same for messages from Flash
+  static void setstatusmessagePGM(PGM_P const msg);
+  // Callback for VP "Display wants to change screen on idle printer"
+  static void ScreenChangeHookIfIdle(DGUS_VP_Variable &var, void *val_ptr);
+  // Callback for VP "Screen has been changed"
+  static void ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Callback for VP "All Heaters Off"
+  static void HandleAllHeatersOff(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change this temperature"
+  static void HandleTemperatureChanged(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for "Change Flowrate"
+  static void HandleFlowRateChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_UI_MOVE_DIS_OPTION)
+    // Hook for manual move option
+    static void HandleManualMoveOption(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+
+  // Hook for manual move.
+  static void HandleManualMove(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for manual extrude.
+  static void HandleManualExtrude(DGUS_VP_Variable &var, void *val_ptr);
+  // Hook for motor lock and unlook
+  static void HandleMotorLockUnlock(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    // Hook for power loss recovery.
+    static void HandlePowerLossRecovery(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for settings
+  static void HandleSettings(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMChanged(DGUS_VP_Variable &var, void *val_ptr);
+  static void HandleStepPerMMExtruderChanged(DGUS_VP_Variable &var, void *val_ptr);
+
+  #if HAS_PID_HEATING
+    // Hook for "Change this temperature PID para"
+    static void HandleTemperaturePIDChanged(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for PID autotune
+    static void HandlePIDAutotune(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_BED_PROBE
+    // Hook for "Change probe offset z"
+    static void HandleProbeOffsetZChanged(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(BABYSTEPPING)
+    // Hook for live z adjust action
+    static void HandleLiveAdjustZ(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if HAS_FAN
+    // Hook for fan control
+    static void HandleFanControl(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  // Hook for heater control
+  static void HandleHeaterControl(DGUS_VP_Variable &var, void *val_ptr);
+  #if ENABLED(DGUS_PREHEAT_UI)
+    // Hook for preheat
+    static void HandlePreheat(DGUS_VP_Variable &var, void *val_ptr);
+  #endif
+  #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+    // Hook for filament load and unload filament option
+    static void HandleFilamentOption(DGUS_VP_Variable &var, void *val_ptr);
+    // Hook for filament load and unload
+    static void HandleFilamentLoadUnload(DGUS_VP_Variable &var);
+  #endif
+
+  #if ENABLED(SDSUPPORT)
+    // Callback for VP "Display wants to change screen when there is a SD card"
+    static void ScreenChangeHookIfSD(DGUS_VP_Variable &var, void *val_ptr);
+    // Scroll buttons on the file listing screen.
+    static void DGUSLCD_SD_ScrollFilelist(DGUS_VP_Variable &var, void *val_ptr);
+    // File touched.
+    static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+    // start print after confirmation received.
+    static void DGUSLCD_SD_StartPrint(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the pause, resume or abort button.
+    static void DGUSLCD_SD_ResumePauseAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User confirmed the abort action
+    static void DGUSLCD_SD_ReallyAbort(DGUS_VP_Variable &var, void *val_ptr);
+    // User hit the tune button
+    static void DGUSLCD_SD_PrintTune(DGUS_VP_Variable &var, void *val_ptr);
+    // Send a single filename to the display.
+    static void DGUSLCD_SD_SendFilename(DGUS_VP_Variable &var);
+    // Marlin informed us that a new SD has been inserted.
+    static void SDCardInserted();
+    // Marlin informed us that the SD Card has been removed().
+    static void SDCardRemoved();
+    // Marlin informed us about a bad SD Card.
+    static void SDCardError();
+  #endif
+
+  // OK Button the Confirm screen.
+  static void ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr);
+
+  // Update data after went to new screen (by display or by GotoScreen)
+  // remember: store the last-displayed screen, so it can get returned to.
+  // (e.g for pop up messages)
+  static void UpdateNewScreen(DGUSLCD_Screens newscreen, bool popup=false);
+
+  // Recall the remembered screen.
+  static void PopToOldScreen();
+
+  // Make the display show the screen and update all VPs in it.
+  static void GotoScreen(DGUSLCD_Screens screen, bool ispopup = false);
+
+  static void UpdateScreenVPData();
+
+  // Helpers to convert and transfer data to the display.
+  static void DGUSLCD_SendWordValueToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendStringToDisplayPGM(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPercentageToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintProgressToDisplay(DGUS_VP_Variable &var);
+  static void DGUSLCD_SendPrintTimeToDisplay(DGUS_VP_Variable &var);
+
+  #if ENABLED(PRINTCOUNTER)
+    static void DGUSLCD_SendPrintAccTimeToDisplay(DGUS_VP_Variable &var);
+    static void DGUSLCD_SendPrintsTotalToDisplay(DGUS_VP_Variable &var);
+  #endif
+  #if HAS_FAN
+    static void DGUSLCD_SendFanStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+  static void DGUSLCD_SendHeaterStatusToDisplay(DGUS_VP_Variable &var);
+  #if ENABLED(DGUS_UI_WAITING)
+    static void DGUSLCD_SendWaitingStatusToDisplay(DGUS_VP_Variable &var);
+  #endif
+
+  // Send a value from 0..100 to a variable with a range from 0..255
+  static void DGUSLCD_PercentageToUint8(DGUS_VP_Variable &var, void *val_ptr);
+
+  template<typename T>
+  static void DGUSLCD_SetValueDirectly(DGUS_VP_Variable &var, void *val_ptr) {
+    if (!var.memadr) return;
+    union { unsigned char tmp[sizeof(T)]; T t; } x;
+    unsigned char *ptr = (unsigned char*)val_ptr;
+    LOOP_L_N(i, sizeof(T)) x.tmp[i] = ptr[sizeof(T) - i - 1];
+    *(T*)var.memadr = x.t;
+  }
+
+  // Send a float value to the display.
+  // Display will get a 4-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsLongValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (long)f);
+    }
+  }
+
+  // Send a float value to the display.
+  // Display will get a 2-byte integer scaled to the number of digits:
+  // Tell the display the number of digits and it cheats by displaying a dot between...
+  template<unsigned int decimals>
+  static void DGUSLCD_SendFloatAsIntValueToDisplay(DGUS_VP_Variable &var) {
+    if (var.memadr) {
+      float f = *(float *)var.memadr;
+      DEBUG_ECHOLNPAIR_F(" >> ", f, 6);
+      f *= cpow(10, decimals);
+      dgusdisplay.WriteVariable(var.VP, (int16_t)f);
+    }
+  }
+
+  // Force an update of all VP on the current screen.
+  static inline void ForceCompleteUpdate() { update_ptr = 0; ScreenComplete = false; }
+  // Has all VPs sent to the screen
+  static inline bool IsScreenComplete() { return ScreenComplete; }
+
+  static inline DGUSLCD_Screens getCurrentScreen() { return current_screen; }
+
+  static inline void SetupConfirmAction( void (*f)()) { confirm_action_cb = f; }
+
+private:
+  static DGUSLCD_Screens current_screen;  //< currently on screen
+  static constexpr uint8_t NUM_PAST_SCREENS = 4;
+  static DGUSLCD_Screens past_screens[NUM_PAST_SCREENS]; //< LIFO with past screens for the "back" button.
+
+  static uint8_t update_ptr;      //< Last sent entry in the VPList for the actual screen.
+  static uint16_t skipVP;         //< When updating the screen data, skip this one, because the user is interacting with it.
+  static bool ScreenComplete;     //< All VPs sent to screen?
+
+  static uint16_t ConfirmVP;      //< context for confirm screen (VP that will be emulated-sent on "OK").
+
+  #if ENABLED(SDSUPPORT)
+    static int16_t top_file;      //< file on top of file chooser
+    static int16_t file_to_print; //< touched file to be confirmed
+  #endif
+
+  static void (*confirm_action_cb)();
+};
+
+#if ENABLED(POWER_LOSS_RECOVERY)
+  #define PLR_SCREEN_RECOVER DGUSLCD_SCREEN_SDPRINTMANIPULATION
+  #define PLR_SCREEN_CANCEL DGUSLCD_SCREEN_STATUS
+#endif

Marlin/src/lcd/extui/lib/mks_ui/draw_manuaLevel.cpp

@@ -29,6 +29,8 @@
 #include "../../../../gcode/queue.h"
 #include "../../../../inc/MarlinConfig.h"
 
+extern const char G28_STR[];
+
 extern lv_group_t *g;
 static lv_obj_t *scr;
 

Marlin/src/lcd/extui/lib/mks_ui/draw_move_motor.cpp

@@ -38,8 +38,6 @@ static lv_task_t *updatePosTask;
 static char cur_label = 'Z';
 static float cur_pos = 0;
 
-void disp_cur_pos();
-
 enum {
   ID_M_X_P = 1,
   ID_M_X_N,
@@ -51,6 +49,12 @@ enum {
   ID_M_RETURN
 };
 
+void disp_cur_pos() {
+  char str_1[16];
+  sprintf_P(public_buf_l, PSTR("%c:%s mm"), cur_label, dtostrf(cur_pos, 1, 1, str_1));
+  if (labelP) lv_label_set_text(labelP, public_buf_l);
+}
+
 static void event_handler(lv_obj_t *obj, lv_event_t event) {
   char str_1[16];
   if (event != LV_EVENT_RELEASED) return;
@@ -125,12 +129,6 @@ void lv_draw_move_motor() {
   disp_cur_pos();
 }
 
-void disp_cur_pos() {
-  char str_1[16];
-  sprintf_P(public_buf_l, PSTR("%c:%s mm"), cur_label, dtostrf(cur_pos, 1, 1, str_1));
-  if (labelP) lv_label_set_text(labelP, public_buf_l);
-}
-
 void disp_move_dist() {
   if ((int)(10 * uiCfg.move_dist) == 1)
     lv_imgbtn_set_src_both(buttonV, "F:/bmp_step_move0_1.bin");

Marlin/src/lcd/extui/lib/mks_ui/draw_ready_print.cpp

@@ -152,9 +152,9 @@ void lv_draw_ready_print() {
       limit_info = lv_label_create_empty(scr);
 
       lv_style_copy(&limit_style, &lv_style_scr);
-      limit_style.body.main_color.full = 0X0000;
+      limit_style.body.main_color.full = 0x0000;
-      limit_style.body.grad_color.full = 0X0000;
+      limit_style.body.grad_color.full = 0x0000;
-      limit_style.text.color.full      = 0Xffff;
+      limit_style.text.color.full      = 0xffff;
       lv_obj_set_style(limit_info, &limit_style);
 
       lv_obj_set_pos(limit_info, 20, 120);
@@ -163,9 +163,9 @@ void lv_draw_ready_print() {
       det_info = lv_label_create_empty(scr);
 
       lv_style_copy(&det_style, &lv_style_scr);
-      det_style.body.main_color.full = 0X0000;
+      det_style.body.main_color.full = 0x0000;
-      det_style.body.grad_color.full = 0X0000;
+      det_style.body.grad_color.full = 0x0000;
-      det_style.text.color.full      = 0Xffff;
+      det_style.text.color.full      = 0xffff;
       lv_obj_set_style(det_info, &det_style);
 
       lv_obj_set_pos(det_info, 20, 145);

Marlin/src/lcd/extui/lib/mks_ui/pic_manager.h

@@ -116,7 +116,7 @@
 #endif
 
 // Flash flag
-#define REFLSHE_FLGA_ADD                (0X800000-32)
+#define REFLSHE_FLGA_ADD                (0x800000-32)
 
 // SD card information first addr
 #define VAR_INF_ADDR                    0x000000

Marlin/src/lcd/extui/lib/mks_ui/wifi_module.cpp

@@ -1231,13 +1231,13 @@ void utf8_2_unicode(uint8_t *source, uint8_t Len) {
 
   while (1) {
     char_byte_num = source[i] & 0xF0;
-    if (source[i] < 0X80) {
+    if (source[i] < 0x80) {
       //ASCII --1byte
       FileName_unicode[char_i] = source[i];
       i += 1;
       char_i += 1;
     }
-    else if (char_byte_num == 0XC0 || char_byte_num == 0XD0) {
+    else if (char_byte_num == 0xC0 || char_byte_num == 0xD0) {
       //--2byte
       u16_h = (((uint16_t)source[i] << 8) & 0x1F00) >> 2;
       u16_l = ((uint16_t)source[i + 1] & 0x003F);
@@ -1247,7 +1247,7 @@ void utf8_2_unicode(uint8_t *source, uint8_t Len) {
       i += 2;
       char_i += 2;
     }
-    else if (char_byte_num == 0XE0) {
+    else if (char_byte_num == 0xE0) {
       //--3byte
       u16_h = (((uint16_t)source[i] << 8) & 0x0F00) << 4;
       u16_m = (((uint16_t)source[i + 1] << 8) & 0x3F00) >> 2;
@@ -1258,7 +1258,7 @@ void utf8_2_unicode(uint8_t *source, uint8_t Len) {
       i += 3;
       char_i += 2;
     }
-    else if (char_byte_num == 0XF0) {
+    else if (char_byte_num == 0xF0) {
       //--4byte
       i += 4;
       //char_i += 3;

Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h

@@ -42,6 +42,8 @@
 //#define FLASH_EEPROM_EMULATION                  // Use Flash-based EEPROM emulation
 #define I2C_EEPROM
 #define MARLIN_EEPROM_SIZE                0x1000  // 4KB
+#define I2C_SCL_PIN                         PB6
+#define I2C_SDA_PIN                         PB7
 
 //
 // Release PB4 (Z_DIR_PIN) from JTAG NRST role

platformio.ini

@@ -53,6 +53,7 @@ default_src_filter = +<src/*> -<src/config> -<src/HAL> +<src/HAL/shared>
   -<src/lcd/menu/menu_ubl.cpp>
   -<src/lcd/extui/lib/mks_ui>
   -<src/lcd/extui/lib/dgus> -<src/lcd/extui/dgus_lcd.cpp>
+  -<src/lcd/extui/lib/dgus/fysetc> -<src/lcd/extui/lib/dgus/hiprecy> -<src/lcd/extui/lib/dgus/mks> -<src/lcd/extui/lib/dgus/origin>
   -<src/lcd/extui/example.cpp>
   -<src/lcd/extui/malyan_lcd.cpp>
   -<src/lcd/extui/lib/ftdi_eve_touch_ui>
@@ -287,6 +288,10 @@ HAS_MENU_UBL            = src_filter=+<src/lcd/menu/menu_ubl.cpp>
 ANYCUBIC_LCD_CHIRON     = src_filter=+<src/lcd/extui/anycubic_chiron_lcd.cpp> +<src/lcd/extui/lib/anycubic_chiron>
 ANYCUBIC_LCD_I3MEGA     = src_filter=+<src/lcd/extui/anycubic_i3mega_lcd.cpp> +<src/lcd/extui/lib/anycubic_i3mega>
 HAS_DGUS_LCD            = src_filter=+<src/lcd/extui/lib/dgus> +<src/lcd/extui/dgus_lcd.cpp>
+DGUS_LCD_UI_FYSETC      = src_filter=+<src/lcd/extui/lib/dgus/fysetc>
+DGUS_LCD_UI_HIPRECY     = src_filter=+<src/lcd/extui/lib/dgus/hiprecy>
+DGUS_LCD_UI_MKS         = src_filter=+<src/lcd/extui/lib/dgus/mks>
+DGUS_LCD_UI_ORIGIN      = src_filter=+<src/lcd/extui/lib/dgus/origin>
 TOUCH_UI_FTDI_EVE       = src_filter=+<src/lcd/extui/lib/ftdi_eve_touch_ui>
 EXTUI_EXAMPLE           = src_filter=+<src/lcd/extui/example.cpp>
 MALYAN_LCD              = src_filter=+<src/lcd/extui/malyan_lcd.cpp>