[PySide] parenting widgets explicitly vs adding to layout

[Frank Rueter | OHUfx]

Sorry, I don't know why this always happens to me.
Right after sending this I found that there was a questionable custom 
sizeHint() implementation in the TableView() class which seems to have 
cause the problem.


On 26/05/18 5:41 PM, Frank Rueter | OHUfx wrote:
>
> Hi,
>
> I may have adopted a bad habit and would like to get clarification 
> from some pros:
>
> Once upon a time I was told (or assumed - I can’t remember), that 
> creating a widget without a parent is fine if you add it to the 
> parent’s layout straight away anyway.
> E.g.:
>
> |self.table = TableView() self.layout().addWidget(self.table) |
>
> However, I am now looking at some code where the parent widget’s 
> default size is very different compared to it's size when I create 
> children with "self" as the  explicit parent e.g.:
>
> |self.table = TableView(self) self.layout().addWidget(self.table) |
> ​
>
> The latter opens the parent widget too small, and I have to increase 
> it's height to show the entire table, the former opens up larger.
> Is this to be expected? If so, where should I read up to understand 
> the logic?
>
> Or is this unexpected behaviour and the two examples should yield the 
> same result?
>
> Cheers,
> frank
>
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