Fixed the Preferences tab update problem, where part of the widgets w…

…ere not created. The reason was that under some circumstances (aodb refresh) the settings areas were cleared and recreated, but unfortunately no one was recreating the additional widgets for the addon folders and UI options. This caused the "C++ part of NNN has already been destroyed" exceptions.

snowberry/plugins/preferences.py

@@ -116,16 +116,16 @@ def removeAddonPath():
 
     elif event.hasId('addon-paths-changed'):
         # Insert the current custom paths into the list.
-        try:
-            pathList.clear()
-            for p in paths.getAddonPaths():
-                pathList.addItem(p)
-        except:
+        #try:
+        pathList.clear()
+        for p in paths.getAddonPaths():
+            pathList.addItem(p)
+        #except:
             # Ignore errors in this operation. 
             # TODO: Figure out under which circumstances this notification
             # is received when the pathList C++ part has already been 
             # destroyed.
-            pass
+        #    pass
 
 
 def handleCommand(event):

snowberry/plugins/tab40_settings.py

@@ -118,6 +118,9 @@ def createWidgets():
     # applicable.
     populateTabs()
 
+    # Request others to create additional widgets in the tabs.
+    requestPopulation()
+
     # Redo the layout.
     ui.getArea(SETTINGS).updateLayout()
 
@@ -145,17 +148,20 @@ def handleCommand(event):
         categoryArea.selectTab('general-options')        
 
 
+def requestPopulation():
+    # Request others to create widgets in the setting tabs, if
+    # necessary.
+    for areaId, area in categoryTabs:
+        events.send(events.PopulateNotify(areaId, area))
+        area.updateLayout()
+
+
 def handleNotify(event):
     """This is called when someone sends a notification event."""
 
-    if event.hasId('init-done'):
-        # Request others to create widgets in the setting tabs, if
-        # necessary.
-        for areaId, area in categoryTabs:
-            events.send(events.PopulateNotify(areaId, area))
-            area.updateLayout()
+    #if event.hasId('init-done'):
 
-    elif (event.hasId('value-changed') or
+    if (event.hasId('value-changed') or
           event.hasId('active-profile-changed') or
           event.hasId('active-profile-refreshed')):
         # Update any settings with value dependencies.