making an application window non resizable

[aegis]

I have a QDialog that i would like to make non resisable...

how can i do it?

N.A

[jpn]

dialog->layout()->setSizeConstraint(QLayout::SetFixedSize);

dialog->layout()->setSizeConstraint(QLayout::SetFixedSize);

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[marcel]

Use either setFixedSize( sizeHint() ), or ( better ) QLayout::setSizeConstraint( QLayout::SetFixedSize ).

The later will allow resizing if system dimensions change ( font sizes, etc ).
But to use it, your layout design must have no errors.

Regards

[aegis]

what is the name of the layout?? i take the gui from qt designer, i have a grid layout.What is it's name?

[marcel]

It does not have a name.
You can access it via the layout() function, as jpn said.

[aegis]

dialog->layout()->setSizeConstraint(QLayout::SetFixedSize);

dialog->layout()->setSizeConstraint(QLayout::SetFixedSize);

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if write this, i get this error "expected primary expression before '->' token


any ideas?

[wysota]

Substitute "dialog" with your variable containing a pointer to the dialog in question. And next time please use the search facilities before asking questions which you suspect may have already been answered.

[marcel]

You can call this from the constructor of your dialog:

layout()->setSizeConstraint( QLayout::SetFixedSize );

layout()->setSizeConstraint( QLayout::SetFixedSize );

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[aegis]

You can call this from the constructor of your dialog:

layout()->setSizeConstraint( QLayout::SetFixedSize );

layout()->setSizeConstraint( QLayout::SetFixedSize );

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the problem is that with this option, it compiles and then when i try to run it it throws a runtime exception

[jpn]

Sounds like layout() returns 0, which means you haven't installed a top level layout on the dialog. If you're using Designer, deselect all the child widgets, open up context menu over the background of the dialog form, select "Layout->...". In another words, a layout dragged from the widget box is not installed on the dialog but is a "floating layout".

[marcel]

What is the exception?
This most likely is because your layout design is not correct.
Do you have a layout set in your dialog at all?
What about setFixedSize( sizeHint() )?

Could you post some relevant code?

[aegis]

What is the exception?
This most likely is because your layout design is not correct.
Do you have a layout set in your dialog at all?
What about setFixedSize( sizeHint() )?

Could you post some relevant code?

error 400 run time exception. I have done my layout design with qdesigner....how can it be wrong?

which part you want posted?

ippalosGui::ippalosGui(QWidget* parent):QDialog(parent),ippalos()
{
		setupUi(this);
		heapSort_RadioButton->setChecked(true);
		sortingOptionsGroupBox->setVisible(false);
		processButton->setEnabled(false);
 
 
		//sortingOptionsGroupBox->hide();
		//settingsGroupBox->hide();
		settingsPushButton->setChecked(false);
		//layout()->setSizeConstraint(QLayout::SetFixedSize);	//making the dialog non-resizable by the user
 
 
 
 
 
		createActions();
	 	createMenu();
		//lineEditEditedText->setText("Constructor...");
 
 
		//all connects happen inside the cnstuctor...
 
		//connect radio buttons... toggled()
		connect(measureButton, 	SIGNAL(clicked()), 				this, SLOT(doTakeMeasurements()));
		//connect(processButton, 	SIGNAL(clicked()), 				processButton, SLOT(showMenu()));
		connect(aboutButton, 	SIGNAL(clicked()), 				this, SLOT(about()));
 
}

ippalosGui::ippalosGui(QWidget* parent):QDialog(parent),ippalos()
{
		setupUi(this);
		heapSort_RadioButton->setChecked(true);
		sortingOptionsGroupBox->setVisible(false);
		processButton->setEnabled(false);


		//sortingOptionsGroupBox->hide();
		//settingsGroupBox->hide();
		settingsPushButton->setChecked(false);
		//layout()->setSizeConstraint(QLayout::SetFixedSize);	//making the dialog non-resizable by the user





		createActions();
	 	createMenu();
		//lineEditEditedText->setText("Constructor...");


		//all connects happen inside the cnstuctor...

		//connect radio buttons... toggled()
		connect(measureButton, 	SIGNAL(clicked()), 				this, SLOT(doTakeMeasurements()));
		//connect(processButton, 	SIGNAL(clicked()), 				processButton, SLOT(showMenu()));
		connect(aboutButton, 	SIGNAL(clicked()), 				this, SLOT(about()));

}

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[aegis]

this is y ui file...

[marcel]

If you'd post the UI it would be better.
Also, where do you call layout()->setSizeConstraint?

[marcel]

OK.
You didn't set a top level layout as jpn said. That is why it gave you the exception.
Try the one I attached.

regards

[aegis]

OK.
You didn't set a top level layout as jpn said. That is why it gave you the exception.
Try the one I attached.

regards

thanks for your reply. You saved me cause i have to deliver by tomorow... but i have some more general questions that i want to ask you!

[marcel]

Go ahead and post them...
If not me, I'm sure the guys will be able to answer.

Regards