QLineEdit and QPushButton heights

[ecir.hana]

Hello,

I created simple QHboxLayout in Qt Creator's Design which contains QLineEdit and QPushButton as follows:

hierarchy.png

and which looks like:

align.png

Please, can someone tell me why has the button larger bounding box height than the button? Both of the widgets have the same visible height but the button keeps growing the parent layout.

In other words, where is the button's padding coming from and how to make it to have no padding?

[ChrisW67]

The height of the horizontal layout is the height given to it by the widget/layout it is in after considering size constraints that may apply (derived from its contents). In this example that is not related to the height of either the line edit or the button. The central widget does not have a layout to control the size at the moment anyway.

If you want the line edit/button widget to occupy the top of a larger space the layout offers them then set that. In Designer you access layout alignment from the right-click context menu of the widget.