[Qt-interest] QLayout Disaster (resizing)

[Paul England]

Hi

Thanks for the response.

I'm mainly using the layouts to keep the widgets grouped.  I can't think 
of an easier (not to mention more elegant) way coding wise to do it, 
considering each my_view_t has several widgets (a few QTableWidgets, a 
few QPushButtons, QLineEdits, and so on).  I'm not adverse to throwing 
them out entirely, but I don't want to have to keep up with the 
coordinates of each object... I'd have to calculate again where each one 
goes for example when the font size is changed.

 >>fixed size layouts don't make a lot of sense

Interesting.  I'm curious as to why there's a SetFixedSize property in 
the QLayout namespace.  Although it's behavior definitely agrees with 
your philosophy.

Paul
> On 14.07.09 09:13:03, Paul England wrote:
>   
>> This is driving me nuts, so before I tinker any more I should make sure 
>> what I'm trying to achieve is even possible.
>>
>> My application is a QDialog, which has quite a few nested 
>> QHBoxLayouts/QVBoxLayouts and other QWidgets (QPushButtons, QLineEdits, 
>> and QTableWidgetItems for the most part).
>>
>> I set all of my Layouts to sizeConstraint to QLayout::SetFixedSize, and 
>> I put in an stretch of -1.  The stretch works perfectly.  If the GUI is 
>> resized to anything larger than the necessary space, everything stays 
>> positioned (in the top left-hand corner).  However, when the GUI is 
>> resized to something smaller, the view_layout is definitely resized.  
>> Each my_view_t within it keeps it's relative position (all of the 
>> widgets within it keep their relative spacing and sizng) but they will 
>> overlap with each other.  So, if I have a QTableWidget within each 
>> my_view_t, if I resize the GUI small enough, I have 3 QTableWidgets 
>> overlapping one another.   This is obviously bad, and I can't figure out 
>> exactly where I'm messing it up.  The desired effect would be that the 
>> GUI simply resizes, but all the widgets inside are of a static size.  If 
>> the user only wants to "see" one of the my_view_t's, he just resizes the 
>> window to the desired size.
>>     
>
> You're misusing layouts, fixed size layouts don't make a lot of sense, you
> could just as well leave away the layouts and position your widgets with
> absolute coordinates. This will also "fix" your current problems, widgets
> that are outside of the smaller size will just be clipped.
>
> Andreas
>
>