Anpassung an den Wrappern für sn_plan41

functions/ly_visibility_wrapper.py

@@ -1,17 +1,19 @@
 # sn_basis/functions/ly_visibility_wrapper.py
 
 def is_layer_visible(layer) -> bool:
+    """
+    Prüft, ob ein Layer im Layer-Tree sichtbar ist.
+    """
     if layer is None:
         return False
 
-    visible = getattr(layer, "visible", None)
-    if visible is not None:
-        return bool(visible)
-
     try:
-        is_visible = getattr(layer, "isVisible", None)
-        if callable(is_visible):
-            return bool(is_visible())
+        node = getattr(layer, "treeLayer", None)
+        if callable(node):
+            tree_node = node()
+            is_visible = getattr(tree_node, "isVisible", None)
+            if callable(is_visible):
+                return bool(is_visible())
     except Exception:
         pass
 
@@ -19,21 +21,20 @@ def is_layer_visible(layer) -> bool:
 
 
 def set_layer_visible(layer, visible: bool) -> bool:
+    """
+    Setzt die Sichtbarkeit eines Layers im Layer-Tree.
+    """
     if layer is None:
         return False
 
     try:
-        if hasattr(layer, "visible"):
-            layer.visible = bool(visible)
-            return True
-    except Exception:
-        pass
-
-    try:
-        node = getattr(layer, "treeLayer", lambda: None)()
-        if node and callable(getattr(node, "setItemVisibilityChecked", None)):
-            node.setItemVisibilityChecked(bool(visible))
-            return True
+        node = getattr(layer, "treeLayer", None)
+        if callable(node):
+            tree_node = node()
+            setter = getattr(tree_node, "setItemVisibilityChecked", None)
+            if callable(setter):
+                setter(bool(visible))
+                return True
     except Exception:
         pass