ui: move Dynamic Experimental Control (DEC) toggle to Longitudinal panel (#1388)

- Implemented a new toggle for enabling Dynamic Experimental Control (DEC) in longitudinal settings.
- Removed previous implementation for DEC from general settings.
- Updated accessibility based on longitudinal control status.

selfdrive/ui/qt/offroad/settings.cc

@@ -33,13 +33,6 @@ TogglesPanel::TogglesPanel(SettingsWindow *parent) : ListWidget(parent) {
       "../assets/icons/experimental_white.svg",
       false,
     },
-    {
-      "DynamicExperimentalControl",
-      tr("Enable Dynamic Experimental Control"),
-      tr("Enable toggle to allow the model to determine when to use sunnypilot ACC or sunnypilot End to End Longitudinal."),
-      "../assets/offroad/icon_blank.png",
-      false,
-    },
     {
       "DisengageOnAccelerator",
       tr("Disengage on Accelerator Pedal"),

selfdrive/ui/sunnypilot/qt/offroad/settings/longitudinal_panel.cc

@@ -43,6 +43,15 @@ LongitudinalPanel::LongitudinalPanel(QWidget *parent) : QWidget(parent) {
   intelligentCruiseButtonManagement->setConfirmation(true, false);
   list->addItem(intelligentCruiseButtonManagement);
 
+  dynamicExperimentalControl = new ParamControlSP(
+    "DynamicExperimentalControl",
+    tr("Dynamic Experimental Control (DEC)"),
+    tr("Enable toggle to allow the model to determine when to use sunnypilot ACC or sunnypilot End to End Longitudinal."),
+    "",
+    this
+  );
+  list->addItem(dynamicExperimentalControl);
+
   SmartCruiseControlVision = new ParamControl(
     "SmartCruiseControlVision",
     tr("Smart Cruise Control - Vision"),
@@ -153,6 +162,7 @@ void LongitudinalPanel::refresh(bool _offroad) {
   customAccIncrement->setEnabled(cai_allowed && !offroad);
   customAccIncrement->refresh();
 
+  dynamicExperimentalControl->setEnabled(has_longitudinal_control);
   SmartCruiseControlVision->setEnabled(has_longitudinal_control || icbm_allowed);
   SmartCruiseControlMap->setEnabled(has_longitudinal_control || icbm_allowed);
 

selfdrive/ui/sunnypilot/qt/offroad/settings/longitudinal_panel.h

@@ -35,6 +35,7 @@ private:
   ParamControl *SmartCruiseControlVision;
   ParamControl *SmartCruiseControlMap;
   ParamControl *intelligentCruiseButtonManagement = nullptr;
+  ParamControl *dynamicExperimentalControl = nullptr;
   SpeedLimitSettings *speedLimitScreen;
   PushButtonSP *speedLimitSettings;
 };