Implement sending a signal when changing intent changes quality level

For now it does nothing. But I'm adding a function that should cause the combobox to pulse. That'll be a new feature so I'm implementing it in a separate commit.

Contributes to issue CURA-8849.

cura/Settings/IntentManager.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Ultimaker B.V.
+# Copyright (c) 2022 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from PyQt6.QtCore import QObject, pyqtProperty, pyqtSignal, pyqtSlot

resources/qml/PrintSetupSelector/Recommended/RecommendedResolutionSelector.qml

@@ -8,9 +8,11 @@ import Cura 1.7 as Cura
 
 Item
 {
+    id: recommendedResolutionSelector
     height: childrenRect.height
 
     property real labelColumnWidth: Math.round(width / 3)
+    property string _previousResolution: Cura.MachineManager.activeQualityType  //Internal variable to detect changes.
 
     Cura.IconWithText
     {
@@ -62,5 +64,18 @@ Item
             var selected_item = model.getItem(currentIndex)
             Cura.IntentManager.selectIntent(selected_item.intent_category, selected_item.quality_type)
         }
+
+        Connections
+        {
+            target: Cura.IntentManager
+            function onIntentCategoryChanged()
+            {
+                if(recommendedResolutionSelector._previousResolution !== Cura.MachineManager.activeQualityType)
+                {
+                    visibilityPreset.pulse();
+                }
+                recommendedResolutionSelector._previousResolution = Cura.MachineManager.activeQualityType;
+            }
+        }
     }
 }

resources/qml/Widgets/ComboBox.qml

@@ -164,4 +164,9 @@ ComboBox
             text: delegateLabel.truncated ? delegateItem.text : ""
         }
     }
+
+    function pulse()
+    {
+        //TODO: Initiate a pulse of colour.
+    }
 }