[Qt-interest] Qt Designer - need help with controlling distribution of space within a splitter containing two layouts

[Mitchell L Model]

Follow up to my query -- it turns out that when I open the application  
I get the layout I was aiming for. It's only in Qt Designer's windows  
(including previews) where it's wrong. So maybe this is just a problem  
with Qt Designer's interpretation of splitters, layouts, etc.

Now I have another question. I would like the layout on the left side  
of the splitter to have a width ranging between, say 32 and 128. I  
have set the minimum and maximum width of each component in the left- 
side vertical layout accordingly. When the application runs, moving  
the splitter does allow the left-side widgets to grow to their  
maximum, but the splitter can be moved past where that happens,  
leaving lots of empty space. Is there a way to set a limit on where  
the splitter can move to? Maybe it's just not a good idea to set a  
maximum for widgets in splitters.