Vertically align components by baseline in a QHBoxLayout - macos

Question

I'm using Qt Designer to lay out a form with QLabel, QLineEdit and QComboBox controls inside of QFormLayout and QHBoxLayout containers. What do I need to do to have the controls aligned vertically by their text's baselines?
When previewing the dialog on Max OS X, the different controls do not align by their baseline. The following example is using QHBoxLayout, but the same happens with QFormLayout:
Notice how the underscores are not on the same vertical position.
I'm looking for a solution that will work with all widget combinations where baseline adjustment is applicable and where the adjustment is done automatically based on style, platform, widget combination, widget sizes and font settings. Something comparable with CSS's vertical-align: baseline;.
Update
I've done the same test on Windows XP and also applied RA.s suggestion of using a style sheet. But that does not seem to change any of the placement of the controls or their text.

Answer 1

If I understand your question correctly, you need to change the vertical alignment of the QLabels. In Qt Designer, you can accomplish this by clicking on the QLabel, then adjusting the label's alignment property. In this case, I believe that changing the vertical alignment to AlignBottom might fix your problem. If that doesn't work, the label also has a margin property that you can adjust.
Update
Consider using Qt's style sheets for your application. The following style sheet achieved the desired result on the platforms that I could test on (which, unfortunately, does not include OS X):
QLabel, QComboBox, QLineEdit
{
background-position: bottom;
}