Since we cannot support heightForWidth constraints on toplevel
windows, it is impossible to solve this perfectly: if the
window is resizable at all, the user will be able to resize it
too small. Our old solution was just to give up and allow
completely free resizing, even down to 0x0. This makes
very little sense. It is clearly better to use the minimum
size that we have already computed, even though it is not
perfect.
This reverts a behavior change introduced in commit
36e9516f85fbb9c9a236f5ca034d5a0126d86c12 (September 9th, 2002)
[ChangeLog][QtWidgets][QLayout] Widgets and dialogs containing
layouts with heightForWidth (such as a label with word wrap)
will no longer get a minimum size of 0x0.
Task-number: QTBUG-37673
Change-Id: If26b7ef9c80edbf9d54c6519b36646df408b7652
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
c5bc66df2f