QListWidget empty space problem

willemf

I use a QlistWidget to show options in a program, like below:

However the extra white space at the bottom is ugly to say the least. In theory, a statement such as
widget->setSizePolicy(QSizePolicy::Maximum,QSizePolicy::Maximum);
should minimise the size of the widget. In this case it does not.

Any suggestions?
Kind regards,
willem

artwaw

I believe you need to place your widgets in the layout for that to take effect. https://doc.qt.io/qt-5/layout.html

willemf

The widget is within a layout manager defined in a .ui file.
At the moment I get by making use of
sizeHintForColumn(0)
and
sizeHintForRow(0)

But the setSizePolicy() instruction should do it and it does not. Why?

JonB

@willemf said in QListWidget empty space problem:

But the setSizePolicy() instruction should do it and it does not. Why?

That is the $64k question in Qt widgets layout --- let me know if you ever figure how it works! ;-)

If you do not get a better answer, there is a very old post here, https://forum.qt.io/topic/40717/set-size-of-the-qlistview-to-fit-to-it-s-content/6, which shows user doing it by calculating. Code is against the old ListView, but may work/be adaptable for your purpose?

VRonin

add a spacer (layout item) at the bottom and then widget->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents); It's also a property you can set directly in Qt designer