Adjust the parent size when child is hidden

nen777w

I have the following dialog structure:
!http://files.rsdn.ru/38394/dialog_struct.jpg(dialog structure)!

It's a splitter with frames where is each frame contain button and scroll area.
When the user uncheck the button the scroll area is hiding. And result is:
!http://files.rsdn.ru/38394/window_splitter.jpg(result)!

So the button just aligned on the center of frame.
But I want another behavior like on the following image:
!http://files.rsdn.ru/38394/window_splitter_2.jpg(desired result)!

If I understand correctly I just need call adjustSize() for the frame when I hide the scroller:
@void MainWindow::on_btn_1(bool b)
{
ui->scrollArea->setVisible(b);
ui->frame->adjustSize();
}@

But unfortunately it's does not work :-(
Thanks.

"Link to the source code:":http://files.rsdn.ru/38394/QtTest2.zip

8majkel8

use QToolBox instead.

just ui->scrollArea->setVisible(b); should work

also remove frame, frame_2, frame_3 and use vertical layout on scrollArea_global. Add vertical spacer at bottom to handle case when all buttons are off.

PS: you don't have to add separate layout on widget. Just right click on control and select layout from there.

nen777w

Thanks... but I need behavior (with the same set of controls) as I subscribed above.
I just simplify my real case in this example to show the behavior that I need to get.

p.s.
I tried use the spacer but in this case splitter does not work.

8majkel8

sorry I previously missed qsplitter messing around ;-)

You could use something like this

@ui->frame->setMaximumHeight(b ? 99999 : ui->pushButton->height());@

or

@ui->frame->setMaximumHeight(b ? 99999 : 0);@

if you set frame's minimumSize

nen777w

It's work!
Thanks a lot!