Question to state Machine and *.ui

Hi All,

I want to realize a GUI, where the screen layout changes, when I click on a button. Like having a welcome screen with one Button and by clicking it, the screen changes to a completely different look. Therefore I implemented a state machine, that shall load the different "screens". And I made some different screens with the Designer (so I have different *.ui-Files).
The problem is, that the Designer makes everytime a QWidget, and when the state machine starts a new screen, the old one is only closed by it. I think, I want the state machine to change only the Layout of one main QWidget.
I found the Quiloader, but I am not sure. if that is the solution to my problem.


Does anybody has a suggestion for me, what to do best?


Thanks.

QStackedWidget might be just what you need.

Hi,

wouldn't it be better to use QStackedLayout? Then I would only have the mainWindow and would change the Layouts, when I would need a new screenView. Or is the QStackedWidget better?

Hi, QStackedWidget is "a convenience class built on top of QStackedLayout" so they are very similar in functionality.

Ginsengelf

Hi,

ok the hint with QStackedWidget was genious. This was exactly, what I needed.

Thank you very much.

Indeed, QStackedLayout works too, but I mentioned QStackedWidget because you can create and populate it directly in Qt Designer. By contrast, writing the code manually allows you to choose either solution; in that case I suppose I would use QStackedLayout because I expect it to be the (slightly) lighter alternative.

Would you generally prefer creating the views with the designer or manually?

I only do widgets manually if something is not possible in designer, e.g. create widgets dynamically depending on state in the application.

For a stacked widget it would depend on how much UI related logic each page has, i.e. if a page is complex I would do it as its own widget and then add it to the stacked widget (either through promotion or in code).

Cheers,
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