MKS H43 fix, cleanup (#21500)

Followup to #21485

Marlin/Configuration.h

 //#define DGUS_LCD_UI_FYSETC
 //#define DGUS_LCD_UI_HIPRECY
 
-// #define DGUS_LCD_UI_MKS
+//#define DGUS_LCD_UI_MKS
 #if ENABLED(DGUS_LCD_UI_MKS)
   #define USE_MKS_GREEN_UI
 #endif

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

 #if HAS_PID_HEATING
   void DGUSScreenHandler::DGUSLCD_SendTemperaturePID(DGUS_VP_Variable &var) {
     float value = *(float *)var.memadr;
+    value /= 10;
     float valuesend = 0;
     switch (var.VP) {
       default: return;
     SetupConfirmAction(nullptr);
     GotoScreen(DGUSLCD_SCREEN_POPUP);
   }
-
 #endif // SDSUPPORT
 
 void DGUSScreenHandler::ScreenConfirmedOK(DGUS_VP_Variable &var, void *val_ptr) {

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

 #endif
 
 uint16_t manualMoveStep = 1;
-float distanceFilament = 10;
+uint16_t distanceFilament = 10;
 uint16_t FilamentSpeed = 25;
 float ZOffset_distance = 0.1;
 float mesh_adj_distance = 0.01;
     #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_SendFloatAsLongValueToDisplay<0>),
+      VPHELPER(VP_Filament_distance, &distanceFilament, &ScreenHandler.GetManualFilament, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
       VPHELPER(VP_Filament_speed, &FilamentSpeed, &ScreenHandler.GetManualFilamentSpeed, ScreenHandler.DGUSLCD_SendWordValueToDisplay),
     #endif
   #endif
 
 
   // SDCard File listing
-  VPHELPER(VP_SD_FileSelected, nullptr, ScreenHandler.DGUSLCD_SD_FileSelected, nullptr),
+  
   #if ENABLED(SDSUPPORT)
+    VPHELPER(VP_SD_FileSelected, nullptr, ScreenHandler.DGUSLCD_SD_FileSelected, nullptr),
     VPHELPER(VP_SD_ScrollEvent, nullptr, ScreenHandler.DGUSLCD_SD_ScrollFilelist, 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(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
+  #else 
+    VPHELPER(VP_SD_FileSelected, nullptr, ScreenHandler.PrintReturn, nullptr),
   #endif
 
   #if ENABLED(DGUS_UI_WAITING)

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

 #define MKS_FINSH
 
 extern uint16_t manualMoveStep;
-extern float    distanceFilament;
+extern uint16_t distanceFilament;
 extern uint16_t FilamentSpeed;
 extern float    ZOffset_distance;
 extern float    mesh_adj_distance;
 
 extern float z_offset_add;
 
-xyz_int_t tmc_step;
+extern xyz_int_t tmc_step;
 
 extern uint16_t lcd_default_light;
 

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

     GotoScreen(MKSLCD_SCREEN_PrintDone);
   }
 
+#else
+  void DGUSScreenHandler::PrintReturn(DGUS_VP_Variable& var, void *val_ptr) {
+    uint16_t value = swap16(*(uint16_t*)val_ptr);
+    if (value == 0x0F) GotoScreen(DGUSLCD_SCREEN_MAIN);
+  }
 #endif // SDSUPPORT
 
 void DGUSScreenHandler::ScreenChangeHook(DGUS_VP_Variable &var, void *val_ptr) {
         }
         else {
           #if EITHER(HAS_MULTI_HOTEND, SINGLENOZZLE)
-            swap_tool = 2;
+            swap_tool = 1;
           #endif
         }
       #endif

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

     static void GetManualFilamentSpeed(DGUS_VP_Variable &var, void *val_ptr);
   #endif
 
-  // File touched.
-  static void DGUSLCD_SD_FileSelected(DGUS_VP_Variable &var, void *val_ptr);
+  
   #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 SDCardError();
     // Marlin informed us about SD print completion.
     static void SDPrintingFinished();
+  #else 
+    static void PrintReturn(DGUS_VP_Variable &var, void *val_ptr);
   #endif
 
   // OK Button the Confirm screen.