🎨 Clean up TFT Color UI display items (#25712)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/lcd/tft/ui_1024x600.cpp

@@ -228,25 +228,25 @@ void MarlinUI::draw_status_screen() {
   for (i = 0 ; i < ITEMS_COUNT; i++) {
     x = (TFT_WIDTH / ITEMS_COUNT - 80) / 2  + (TFT_WIDTH * i / ITEMS_COUNT);
     switch (i) {
-      #ifdef ITEM_E0
+      #if HAS_EXTRUDERS
         case ITEM_E0: draw_heater_status(x, y, H_E0); break;
       #endif
-      #ifdef ITEM_E1
+      #if HAS_MULTI_HOTEND
         case ITEM_E1: draw_heater_status(x, y, H_E1); break;
       #endif
-      #ifdef ITEM_E2
+      #if HOTENDS > 2
         case ITEM_E2: draw_heater_status(x, y, H_E2); break;
       #endif
-      #ifdef ITEM_BED
+      #if HAS_HEATED_BED
         case ITEM_BED: draw_heater_status(x, y, H_BED); break;
       #endif
-      #ifdef ITEM_CHAMBER
+      #if HAS_TEMP_CHAMBER
         case ITEM_CHAMBER: draw_heater_status(x, y, H_CHAMBER); break;
       #endif
-      #ifdef ITEM_COOLER
+      #if HAS_TEMP_COOLER
         case ITEM_COOLER: draw_heater_status(x, y, H_COOLER); break;
       #endif
-      #ifdef ITEM_FAN
+      #if HAS_FAN
         case ITEM_FAN: draw_fan_status(x, y, blink); break;
       #endif
     }

Marlin/src/lcd/tft/ui_320x240.cpp

@@ -230,25 +230,25 @@ void MarlinUI::draw_status_screen() {
   for (i = 0 ; i < ITEMS_COUNT; i++) {
     x = (TFT_WIDTH / ITEMS_COUNT - 64) / 2  + (TFT_WIDTH * i / ITEMS_COUNT);
     switch (i) {
-      #ifdef ITEM_E0
+      #if HAS_EXTRUDERS
         case ITEM_E0: draw_heater_status(x, y, H_E0); break;
       #endif
-      #ifdef ITEM_E1
+      #if HAS_MULTI_HOTEND
         case ITEM_E1: draw_heater_status(x, y, H_E1); break;
       #endif
-      #ifdef ITEM_E2
+      #if HOTENDS > 2
         case ITEM_E2: draw_heater_status(x, y, H_E2); break;
       #endif
-      #ifdef ITEM_BED
+      #if HAS_HEATED_BED
         case ITEM_BED: draw_heater_status(x, y, H_BED); break;
       #endif
-      #ifdef ITEM_CHAMBER
+      #if HAS_TEMP_CHAMBER
         case ITEM_CHAMBER: draw_heater_status(x, y, H_CHAMBER); break;
       #endif
-      #ifdef ITEM_COOLER
+      #if HAS_TEMP_COOLER
         case ITEM_COOLER: draw_heater_status(x, y, H_COOLER); break;
       #endif
-      #ifdef ITEM_FAN
+      #if HAS_FAN
         case ITEM_FAN: draw_fan_status(x, y, blink); break;
       #endif
     }

Marlin/src/lcd/tft/ui_480x320.cpp

@@ -228,25 +228,25 @@ void MarlinUI::draw_status_screen() {
   for (i = 0 ; i < ITEMS_COUNT; i++) {
     x = (TFT_WIDTH / ITEMS_COUNT - 80) / 2  + (TFT_WIDTH * i / ITEMS_COUNT);
     switch (i) {
-      #ifdef ITEM_E0
+      #if HAS_EXTRUDERS
         case ITEM_E0: draw_heater_status(x, y, H_E0); break;
       #endif
-      #ifdef ITEM_E1
+      #if HAS_MULTI_HOTEND
         case ITEM_E1: draw_heater_status(x, y, H_E1); break;
       #endif
-      #ifdef ITEM_E2
+      #if HOTENDS > 2
         case ITEM_E2: draw_heater_status(x, y, H_E2); break;
       #endif
-      #ifdef ITEM_BED
+      #if HAS_HEATED_BED
         case ITEM_BED: draw_heater_status(x, y, H_BED); break;
       #endif
-      #ifdef ITEM_CHAMBER
+      #if HAS_TEMP_CHAMBER
         case ITEM_CHAMBER: draw_heater_status(x, y, H_CHAMBER); break;
       #endif
-      #ifdef ITEM_COOLER
+      #if HAS_TEMP_COOLER
         case ITEM_COOLER: draw_heater_status(x, y, H_COOLER); break;
       #endif
-      #ifdef ITEM_FAN
+      #if HAS_FAN
         case ITEM_FAN: draw_fan_status(x, y, blink); break;
       #endif
     }

Marlin/src/lcd/tft/ui_common.h

@@ -57,32 +57,15 @@ void menu_item(const uint8_t row, bool sel = false);
 
 #define ABSOLUTE_ZERO     -273.15
 
-#if HAS_TEMP_CHAMBER && HAS_MULTI_HOTEND
-  #define ITEM_E0         0
-  #define ITEM_E1         1
-  #define ITEM_BED        2
-  #define ITEM_CHAMBER    3
-  #define ITEM_FAN        4
-  #define ITEMS_COUNT     5
-#elif HAS_TEMP_CHAMBER
-  #define ITEM_E0         0
-  #define ITEM_BED        1
-  #define ITEM_CHAMBER    2
-  #define ITEM_FAN        3
-  #define ITEMS_COUNT     4
-#elif HAS_TEMP_COOLER
-  #define ITEM_COOLER     0
-  #define ITEM_FAN        1
-  #define ITEMS_COUNT     2
-#elif HAS_MULTI_HOTEND
-  #define ITEM_E0         0
-  #define ITEM_E1         1
-  #define ITEM_BED        2
-  #define ITEM_FAN        3
-  #define ITEMS_COUNT     4
-#else
-  #define ITEM_E0         0
-  #define ITEM_BED        1
-  #define ITEM_FAN        2
-  #define ITEMS_COUNT     3
-#endif
+enum {
+  OPTITEM(HAS_EXTRUDERS, ITEM_E0)
+  OPTITEM(HAS_MULTI_HOTEND, ITEM_E1)
+  #if HOTENDS > 2
+    ITEM_E2,
+  #endif
+  OPTITEM(HAS_HEATED_BED, ITEM_BED)
+  OPTITEM(HAS_TEMP_CHAMBER, ITEM_CHAMBER)
+  OPTITEM(HAS_TEMP_COOLER, ITEM_COOLER)
+  OPTITEM(HAS_FAN, ITEM_FAN)
+  ITEMS_COUNT
+};