Implement missing Pause feature for Anycubic TFT

Marlin/src/feature/pause.cpp

@@ -88,6 +88,10 @@ fil_change_settings_t fc_settings[EXTRUDERS];
   #include "../sd/cardreader.h"
 #endif
 
+#ifdef ANYCUBIC_TOUCHSCREEN
+  #include "../lcd/anycubic_touchscreen.h" //KNUTWURST
+#endif
+
 #if ENABLED(EMERGENCY_PARSER)
   #define _PMSG(L) L##_M108
 #else
@@ -528,6 +532,16 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
       ui.pause_show_message(PAUSE_MESSAGE_HEAT);
       SERIAL_ECHO_MSG(_PMSG(STR_FILAMENT_CHANGE_HEAT));
 
+      #ifdef ANYCUBIC_TOUCHSCREEN  // KNUTWURST
+        if (AnycubicTouchscreen.ai3m_pause_state < 3) {
+          AnycubicTouchscreen.ai3m_pause_state += 2;
+          #ifdef ANYCUBIC_TFT_DEBUG
+            SERIAL_ECHOPAIR(" DEBUG: NTO - AI3M Pause State set to: ", AnycubicTouchscreen.ai3m_pause_state);
+            SERIAL_EOL();
+          #endif
+          }
+      #endif
+
       TERN_(HOST_PROMPT_SUPPORT, host_prompt_do(PROMPT_USER_CONTINUE, GET_TEXT(MSG_HEATER_TIMEOUT), GET_TEXT(MSG_REHEAT)));
 
       TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_HEATER_TIMEOUT)));
@@ -561,6 +575,17 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
       IF_DISABLED(PAUSE_REHEAT_FAST_RESUME, wait_for_user = true);
 
       nozzle_timed_out = false;
+
+      #ifdef ANYCUBIC_TOUCHSCREEN
+        if (AnycubicTouchscreen.ai3m_pause_state > 3) {
+          AnycubicTouchscreen.ai3m_pause_state -= 2;
+          #ifdef ANYCUBIC_TFT_DEBUG
+            SERIAL_ECHOPAIR(" DEBUG: NTO - AI3M Pause State set to: ", AnycubicTouchscreen.ai3m_pause_state);
+            SERIAL_EOL();
+          #endif
+        }
+      #endif
+
       first_impatient_beep(max_beep_count);
     }
     idle_no_sleep();
@@ -607,6 +632,15 @@ void resume_print(const_float_t slow_load_length/*=0*/, const_float_t fast_load_
 
   // Re-enable the heaters if they timed out
   bool nozzle_timed_out = false;
+  #ifdef ANYCUBIC_TOUCHSCREEN  // KNUTWURST
+    if (AnycubicTouchscreen.ai3m_pause_state > 3) {
+      AnycubicTouchscreen.ai3m_pause_state -= 2;
+      #ifdef ANYCUBIC_TFT_DEBUG
+        SERIAL_ECHOPAIR(" DEBUG: NTO - AI3M Pause State set to: ", AnycubicTouchscreen.ai3m_pause_state);
+        SERIAL_EOL();
+      #endif
+      }
+  #endif
   HOTEND_LOOP() {
     nozzle_timed_out |= thermalManager.heater_idle[e].timed_out;
     thermalManager.reset_hotend_idle_timer(e);