Fix so that tabs change notebook pages on Mac, without setting focus to display.

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@36240 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/nviz_tools.py

@@ -99,7 +99,8 @@ class NvizToolWindow(wx.Frame):
         self.SetSize(size)
 
     def OnPageChanged(self, event):
-        pass # do nothing, avoid focusing map display window
+        new = event.GetSelection()
+        self.notebook.ChangeSelection(new)
     
     def PostViewEvent(self, zExag=False):
         """Change view settings"""