Generate per-language translation sources (#806)

This generates dedicates Translation.cpp files for translation language
and derives all language-specific data from them.

The Makefile is extended to also take care of generating these source
files.
This allows reuse of nearly all object files between builds of different
languages for the same model and regenerating the translation sources if
necessary.
This speeds up the release builds and the normal write-compile-cycle
considerably.
It also eliminates miscompilations when manually building different
languages.

source/Core/Src/Settings.cpp

@@ -67,9 +67,7 @@ void resetSettings() {
   systemSettings.autoStartMode     = AUTO_START_MODE;    // Auto start off for safety
   systemSettings.lockingMode       = LOCKING_MODE;       // Disable locking for safety
   systemSettings.coolingTempBlink  = COOLING_TEMP_BLINK; // Blink the temperature on the cooling screen when its > 50C
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
   systemSettings.temperatureInF = TEMPERATURE_INF; // default to 0
-#endif
   systemSettings.descriptionScrollSpeed         = DESCRIPTION_SCROLL_SPEED;   // default to slow
   systemSettings.CalibrationOffset              = CALIBRATION_OFFSET;         // the adc offset in uV
   systemSettings.powerLimit                     = POWER_LIMIT;                // 30 watts default limit

source/Core/Src/gui.cpp

@@ -13,7 +13,6 @@
 #include "cmsis_os.h"
 #include "main.hpp"
 #include "string.h"
-#include "unit.h"
 
 void gui_Menu(const menuitem *menu);
 
@@ -33,10 +32,8 @@ static bool settings_setShutdownTime(void);
 static void settings_displayShutdownTime(void);
 static bool settings_setSensitivity(void);
 static void settings_displaySensitivity(void);
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
 static bool settings_setTempF(void);
 static void settings_displayTempF(void);
-#endif
 static bool settings_setAdvancedSolderingScreens(void);
 static void settings_displayAdvancedSolderingScreens(void);
 static bool settings_setAdvancedIDLEScreens(void);
@@ -168,9 +165,7 @@ const menuitem UIMenu[] = {
  *  Cooldown blink
  *  Reverse Temp change buttons + -
  */
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
-    {(const char *)SettingsDescriptions[5], settings_setTempF, settings_displayTempF}, /* Temperature units*/
-#endif
+    {(const char *)SettingsDescriptions[5], settings_setTempF, settings_displayTempF}, /* Temperature units, this has to be the first element in the array to work with the logic in settings_enterUIMenu() */
     {(const char *)SettingsDescriptions[7], settings_setDisplayRotation, settings_displayDisplayRotation},                                /*Display Rotation*/
     {(const char *)SettingsDescriptions[10], settings_setCoolingBlinkEnabled, settings_displayCoolingBlinkEnabled},                       /*Cooling blink warning*/
     {(const char *)SettingsDescriptions[15], settings_setScrollSpeed, settings_displayScrollSpeed},                                       /*Scroll Speed for descriptions*/
@@ -341,15 +336,12 @@ static void settings_displayQCInputV(void) {
 #endif
 static bool settings_setSleepTemp(void) {
   // If in C, 10 deg, if in F 20 deg
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
   if (systemSettings.temperatureInF) {
     systemSettings.SleepTemp += 20;
     if (systemSettings.SleepTemp > 580)
       systemSettings.SleepTemp = 60;
     return systemSettings.SleepTemp == 580;
-  } else
-#endif
-  {
+  } else {
     systemSettings.SleepTemp += 10;
     if (systemSettings.SleepTemp > 300)
       systemSettings.SleepTemp = 10;
@@ -405,7 +397,6 @@ static void settings_displayShutdownTime(void) {
     OLED::print(SymbolMinutes);
   }
 }
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
 static bool settings_setTempF(void) {
   systemSettings.temperatureInF = !systemSettings.temperatureInF;
   if (systemSettings.temperatureInF) {
@@ -436,7 +427,6 @@ static void settings_displayTempF(void) {
 
   OLED::print((systemSettings.temperatureInF) ? SymbolDegF : SymbolDegC);
 }
-#endif
 
 static bool settings_setSensitivity(void) {
   systemSettings.sensitivity++;
@@ -540,7 +530,6 @@ static void settings_displayDisplayRotation(void) {
 }
 
 static bool settings_setBoostTemp(void) {
-#ifdef ENABLED_FAHRENHEIT_SUPPORT
   if (systemSettings.temperatureInF) {
     if (systemSettings.BoostTemp == 0) {
       systemSettings.BoostTemp = 480; // loop back at 480
@@ -552,9 +541,7 @@ static bool settings_setBoostTemp(void) {
       systemSettings.BoostTemp = 0; // jump to off
     }
     return systemSettings.BoostTemp == 840;
-  } else
-#endif
-  {
+  } else {
     if (systemSettings.BoostTemp == 0) {
       systemSettings.BoostTemp = 250; // loop back at 250
     } else {
@@ -907,7 +894,7 @@ static bool settings_enterPowerMenu(void) {
 }
 static void settings_displayUIMenu(void) { displayMenu(2); }
 static bool settings_enterUIMenu(void) {
-  gui_Menu(UIMenu);
+  gui_Menu(HasFahrenheit ? UIMenu : UIMenu + 1);
   return false;
 }
 static void settings_displayAdvancedMenu(void) { displayMenu(3); }