Unsolved QLayout is wasting space

[Ralf]

I add Qwidgets dynamically

for(int i = 0; i < value; i++)
{
QList<QWidget*> widgetList_i;
//... widgetList_i.append(a lot of widgets)
ui->verticalLayout->addWidget(widget_i);
}

during runtime to my app. As you can see here there is a lot of space wasted between those QWidgets. I am able to drag the border between the two dockWidgets and compress the lower layout like here

But I do not want to do that manually. How can I start a layout already compressed?

EDIT: In short, I expect two things:

1. Start that lower dockWidget/layout compressed, with no space wasting.
2. After starting is should be possible to increase its size

[mrjj]

@Ralf said:
try set widgets_i maximumheight to say 32 (for each)

[SGaist]

Hi,

Your widgets are currently evenly spaced inside your layout. What you can do is add ui->verticalLayout->addStretch(1); after your loop. That will create a stretchable space that should push your widgets up as much as possible.

Hope it helps

[Ralf]

@mrjj nice approach, but then I have wasted space again, see red area

[Ralf]

@SGaist added! The beginning of that layout is nice. The end again space waisted

[SGaist]

Are you expecting the layout contained in your "dock" widget to resize the widget itself ?

[Ralf]

I added
ui->verticalLayout->parentWidget()->setSizePolicy(QSizePolicy::Policy::Preferred, QSizePolicy::Policy::Maximum);
which organized the containing widgets perfectly.
But that opened another problem, No I can not resize (move border between dockwidgets) between the Dockwidgets..