refactor: update camera start button behavior to handle camera detection and live view

controllers/main_controller.py

@@ -49,7 +49,7 @@ class MainController:
         # UI control signals
         self.photo_button.clicked.connect(self.take_photo)
         # self.record_button.clicked.connect(self.toggle_record) # Placeholder
-        self.welcome_view.camera_start_btn.clicked.connect(self.start_liveview)
+        self.welcome_view.camera_start_btn.clicked.connect(self.camera_detect)
         # You will need a way to select a camera, e.g., a combobox.
         # self.view.camera_combobox.currentIndexChanged.connect(self.on_camera_selected_in_ui)
 
@@ -93,6 +93,16 @@ class MainController:
         """Handles the list of detected cameras."""
         print("Detected cameras:", cameras)
         self.welcome_view.set_info_text(f"Detected {len(cameras)} cameras.")
+        
+        self.welcome_view.camera_start_btn.clicked.disconnect()
+
+        if len(cameras) == 0:
+            self.welcome_view.set_button_text("Wykryj kamery")
+            self.welcome_view.camera_start_btn.clicked.connect(self.camera_detect)
+        else:
+            self.welcome_view.set_button_text("Uruchom kamere")
+            self.welcome_view.camera_start_btn.clicked.connect(self.start_liveview)
+            
         # Populate a combobox in the UI here
         # self.view.camera_combobox.clear()
         # for camera in cameras:
@@ -130,6 +140,9 @@ class MainController:
 
     # --- UI Actions ---
 
+    def camera_detect(self):
+        self.camera_manager.detect_cameras()
+
     def start_liveview(self):
         """Starts the camera feed."""
         detected_cameras = self.camera_manager.get_detected_cameras()