QDialogButtonBox - push buttons' size bug

[J.Hilk]

@marko.lainovic seems like normal layout behaviour for me. Do you specify the size of your DialogButtonBox? To be, for example, as small as possible.

Try to make the box bigger by using your mouse and 'dragging' the border further appart, the buttons should become bigger than.

[marko.lainovic]

@J.Hilk

Thanks very much, but I'm not getting it...

I haven't specified anything. This is what Qt designer shows for the QDialogButtonBox object (image below):

As you can see, I made it on purpose to be like this; I dragged it out, there is no layout for the QDialogButtonBox object, etc...

However, the "bug" is still there (image below):

[J.Hilk]

@marko.lainovic
ah, now we're a bit closer :-)
The DialogButtonBox is bigger than what is drawn in your widget.

HOwever, try to give your central widget pointDialog a Layout maybe that will give it a change!?.

[marko.lainovic]

@J.Hilk

Unfortunately, it doesn't :)

This is the actual look of the PointDialog object:

Vertical layout is applied to the QDialog object. I've tried other layouts, too.

The end result:

[koahnig]

@marko.lainovic

Can you create a small app showing this?
I would suggest a simple application created by creator and add a dialog and check, if it is showing the problem on your machine.
Others can cross-check the source on their machine with their installations.

[marko.lainovic]

@koahnig

Unfortunately, it's not easy to replicate :D

I will try though and post it here!

[koahnig]

@marko.lainovic

When you cannot replicate in another, it is obviously nothing with your installation of Qt.

Since you nothing special in design mode of Qt creator and you observe the same behaviour in Qt standard dialogs such as QMessage, the problem is with your application.

Did you play around with stylesheets in your application?

[marko.lainovic]

@koahnig

Hi!

I tend to agree with you that something is amiss in the application, but I cannot figure out why...

I solved this problem by:

• Replacing QMessageBox::question call with QMessageBox object on stack..
• Setting minumum size for the buttons in the QDialogButtonBox object in the code.

I've been setting stylesheets just a couple of times in the code, but it has nothing to do with QPushButton or QDialogButtonBox objects... mainly background colors for QMenu objects and similar...

If I figure out what was the issue, I'll be sure to post it here!

[robertjjoynt]

@marko.lainovic

Hi,

I have a suggestion for this issue. Perhaps the QDialogButtonBox has the following properties set (not at default values) which is causing the bad display: sizePolicy ( 4 properties), minimumSize (2 properties) and maximumSize (2 properties).

These properties will affect the expanding/shrinking of the buttonbox which may be causing the small buttons. These properties can be adjusted in QtDesigner. If they are set (marked in bold) then you could try unsetting them to see if it solves the problem.

[theworldlock]

try using CSS, change attributes according to your need

QDialogButtonBox QPushButton{
  color:rgb(0,0,0);
  height:80px;
  font-size:20px;
  padding:10px;
  width:100px;
  font-weight:bold;
  background-color: rgb(237, 212, 0);
  border-radius: 8px;
}