Hi,
The short answer is NO - Qt does not guarantee that designer created layouts look identical on all platforms. Especially on Mac where the minimum sizes are much larger due to the larger default font size and layout margins. The same widget type will have different default minimum sizes depending on the platform and desktop style. It's not clear to me why you have put the groups in a scroll area, if you don't want scroll bars to be shown. If you drag the layout into a normal dialog or main window, then the minimum sizes that you have set should be respected, and the group boxes should grow if you have allowed that. Tony. From: interest-bounces+tony=rightsoft.com...@qt-project.org [mailto:interest-bounces+tony=rightsoft.com...@qt-project.org] On Behalf Of Goblin Coding Sent: Wednesday, 2 January 2013 5:13 PM To: interest@qt-project.org Subject: [Interest] Widget cross-platform (minimum) size constraint problem. Hi All, First of all, I have had a look at the documentation, I've tried various combinations of setting minimum sizes, different size policies, calling updateGeometry() and adjustSize(), I've searched the forum for "qwidget minimum size" and others, I've asked Google.and I'm still stuck. Background I have a widget deriving from QScrollArea. This widget is populated with a bunch of QGroupBox'es in a horizontal layout (the main layout for the widget). Each QGroupBox contains buttons and/or other standard Qt widgets and all of them have layouts assigned to them and their content. The problem On Windows, I manage to ensure that the widget is created with the minimum size required to display the content WITHOUT having to show any scroll bars by setting the minimumSize property (using QtCreator and designer) and setting both the horizontal and vertical size policies to "Fixed". This works just fine. However, compiling the same code on Ubuntu (12.04 LTS), the widget is displayed with the horizontal scroll bar showing at start-up. Now, I can obviously sort that out (for Ubuntu) by playing around with the minimum size settings, but that kind of defeats the point of "code once, deploy everywhere". The question Is there a way to ensure that what I see in designer is what I get? In case this is not clear: is there a way to ensure that the widget, when set on a parent widget or window, will look exactly like it does when viewed in designer? Qt details: QtCreator 2.4.1 based on Qt 4.7.4 (32 bit) Thanks for your help!
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