different scale of Designer and App - how to fix it?

[Erhy]

Hello!
Want to run a downloaded Qt-project on Windows 10.
I'm able to modify the UI, but if I start the app
all widgest are too small and narrowly,
only the text-fonts are as defined in designer.

Have you a fast advice for newbie**?**

Thank you
Erhy

here the comparison:

[kshegunov]

Hi,
Open the form with Qt creator and set a layout to that mess. Right click on the bottommost widget (the background) right click and select Set layout > Grid layout from the context menu.

Kind regards.

[Erhy]

Thank you for your fast answer

I could do as you suggested.

Now there is a other quirk;

a QToolBox with 4 QWidget's vertical aligned.

In started up only the half is visible, movable with sliders.

If I enlarge the toolbox all is enlarged.

Where to do enlarge, that all is visible without sliders?

Thank you
Erhy

[kshegunov]

You lost me. Could you attach another screenshot of what the other "quirk" is?

[Erhy]

here the running App
There is a drawing area and a toolbox area, which I want to enlarge
Erhy

[LuGRU]

@Erhy

1. QBoxLayout::setStretch(int index, int stretch) and use i.e. vertical layout. In this case it should be (most probably) QBoxLayout::setStretch( 0, 0) this will expand first widget based on it's content layouts setup.
2. set fixed size for QToolBox
3. use Splitters with will allow to manually resize areas. I think this is most appropriate solution for this case.

[Erhy]

@LuGRU Thank you,
after some online tutorials I was able to fix it.
Erhy