QGroupBox is filled with too much space.

[Pippin]

Hello,

for some reason I can't seem to make two QTextEdits (LocalIp and PublicIp) smaller. They are disproportionate.

http://i.imgur.com/3I06clD.png

Here's the code:

	MyWindow.setWindowTitle("Start Game");
	MyWindow.setCentralWidget(&MainWidget);
	
	ServerBox.setCheckable(true);
	ServerBox.setChecked(false);
	IdBox.resize(75, 20);
	
	ServerBoxLayout.addWidget(&IdLabel);
	ServerBoxLayout.addWidget(&IdBox);
	ServerBoxLayout.addWidget(&IdConnectButton);
	ServerBox.setLayout(&ServerBoxLayout);
	TheOneGrid.addWidget(&ServerBox, 0, 0);
	
	DirectLineBox.setCheckable(true);
	DirectLineBox.setChecked(true);
	IpBox.resize(75, 20);
	
	ConnectionLayout.addWidget(&IpLabel);
	ConnectionLayout.addWidget(&IpBox);
	ConnectionLayout.addWidget(&IpConnectButton);
	ConnectionLayout.addWidget(&HostButton);
	ConnectionBox.setLayout(&ConnectionLayout);
	
	LocalInfoLayout.addWidget(&LocalInfoLabel);
	LocalIp.resize(75, 20);
	LocalIp.setReadOnly(true);
	LocalIp.setText("a");
	LocalInfoLayout.addWidget(&LocalIp);
	LocalInfoBox.setLayout(&LocalInfoLayout);
	
	PublicInfoLayout.addWidget(&PublicInfoLabel);
	PublicIp.resize(75, 20);
	PublicIp.setReadOnly(true);
	PublicIp.setText("b");
	PublicInfoLayout.addWidget(&PublicIp);
	PublicInfoBox.setLayout(&PublicInfoLayout);
	
	DirectLineBoxLayout.addWidget(&ConnectionBox);
	DirectLineBoxLayout.addWidget(&LocalInfoBox);
	DirectLineBoxLayout.addWidget(&PublicInfoBox);
	DirectLineBox.setLayout(&DirectLineBoxLayout);
	TheOneGrid.addWidget(&DirectLineBox, 1, 0);
	
	TheOneGrid.addWidget(&HomeButton, 2, 0);
	MainWidget.setLayout(&TheOneGrid);

Any ideas what I'm doing wrong? Thanks in advance.

[mrjj]

Hi
Have you tried with setMInimumHeight/Width instead of resize
as once a widget is in a layout, then the layout controls sizes.
But it respects Min/Max values.

[Pippin]

@mrjj Thanks for your reply. I've changed LocalIp.resize(75, 20); with LocalIp.setMinimumHeight(20); but the result is the same I'm afraid :(

[mrjj]

@Pippin
Well if you want it 20 , then
LocalIp.setMaximumHeight(20)
so at most 20.

you could also limit the left side to prevent it from making lower box smaller

[Pippin]

@mrjj Okay thanks, now I get this: http://i.imgur.com/Oyt3gnT.png

It's better but still poorly spaced. I've tried to change the spacing of DirectLineBoxLayout but the result remains the same.

[mrjj]

@Pippin
oh, hmm, it divides the area (of the container) between them.
You could insert a VerticalSpacer to push them up.

http://postimg.org/image/4eu5m4xy5/

[Pippin]

@mrjj Ok but isn't there any way to actually reduce the area? Why does it have to be bigger than all the widgets together?

[mrjj]

@Pippin
The area is also scaled to its container layout so that is where it get its height.
maybe QLayout::setAlignment can make it stack more to the top but
i mostly just insert a spacer.

[Pippin]

@mrjj QLayout::setAlignment doesn't seem to work with DirectLineBoxLayout. I'll try to find another way.

It sometimes is very frustrating how full of bugs Qt is.

[mrjj]

@Pippin
Well you can set Maximum Height on the layout to force area smaller.

It is possible to build using a widget as place holder.
Have a look at this.
https://www.dropbox.com/s/pdlb6jeph7iobc9/opper.zip?dl=0

[SGaist]

Hi,

Maybe a silly question but since it's for IP addresses, why not use a QLineEdit ?

[Pippin]

@SGaist Good point, I use QLineEdits now. My problem remains though: http://i.imgur.com/raW29vW.png

Neither QVBoxLayout::addStretch (result is unchanged) nor QGroupBox::setMaximumHeight (result: http://i.imgur.com/FklMI9g.png) seem to work here.

I'd rather have the extra space disappear rather than add a spacer or something. The smaller the window, the better.

[SGaist]

For the layout of your dialog, I think you should have a look at QFormLayout

[Pippin]

@SGaist I can't use QFormLayouts because I need to display a Connect QPushButton as well as a Host QPushButton. Or is there a way around this?

[Pippin]

Well never mind, I'll just drop the IP info so that there's no more bug.

It is absurd how Qt has that many bugs. Before coding tip-top things, Qt's coders should make sure that the most basic (BASIC) things actually work. I wish I didn't have to use Qt. It is so very overrated. Sorry for that, but I'm both exasperated and disappointed. That's not the first unsolvable problem I've come across.

[SGaist]

You would put your QLineEdit and two QPushButton in a QHorizontalLayout. QFormLayout::addRow supports also layouts.