how to setAlignment of QGroupBox

cerr

@p3c0 said in how to setAlignment of QGroupBox:

@cerr So now set vbox as a layout to its parent widget.

Did you mean like?

QVBoxLayout *vbox = new QVBoxLayout;
    vbox->addWidget(terminalWidget);
    vbox->addWidget(groupBox);
    vbox->addWidget(parent);
    groupBox->setLayout(vbox);
    terminalWidget ->show();
``` - that doesn't let me open my application...

p3c0

@cerr Probably something like this. Assuming QDialog is my main widget which contains groupbox.

QVBoxLayout *mainLayout = new QVBoxLayout;
myDialog->setLayout(mainLayout);

//Now add widgets into this layout

mainLayout->addWidget(groupBox);// groupbox first
mainLayout->addWidget(terminalWidget);

Now in your case if you want to add terminalWidget inside a groupbox's layout you can create new one and add into it keeping mainLayout as it is.

cerr

@p3c0 said in how to setAlignment of QGroupBox:

Thanks for pitching in, I guess this is what I was missing. I now have this (which I can work with going forward):

Terminal* Session::addTerminal(QWidget* parent)
{    
  
    QGroupBox *groupBox = new QGroupBox(tr("Test"), parent);    
    groupBox->setAlignment(Qt::AlignLeft);
    QVBoxLayout *vbox = new QVBoxLayout;    
    groupBox->setLayout(vbox);    
    vbox->addWidget(groupBox);
    
    Terminal* terminal = new Terminal(parent);
    connect(terminal, SIGNAL(activated(int)), this, SLOT(setActiveTerminal(int)));
    connect(terminal, SIGNAL(manuallyActivated(Terminal*)), this, SIGNAL(terminalManuallyActivated(Terminal*)));
    connect(terminal, SIGNAL(titleChanged(int,QString)), this, SLOT(setTitle(int,QString)));
    connect(terminal, SIGNAL(keyboardInputBlocked(Terminal*)), this, SIGNAL(keyboardInputBlocked(Terminal*)));
    connect(terminal, SIGNAL(silenceDetected(Terminal*)), this, SIGNAL(silenceDetected(Terminal*)));
    connect(terminal, SIGNAL(destroyed(int)), this, SLOT(cleanup(int)));
    m_terminals.insert(terminal->id(), terminal);    
    QWidget* terminalWidget = terminal->terminalWidget();
    
    vbox->addWidget(terminalWidget);
    
    terminalWidget->show();
    if (groupBox) groupBox->setFocus();
    return terminal;
}

But now back to the top, while it looks like this now: https://postimg.org/image/viahdjbwp/ how do I get the GroupBox label aligned to the left?

p3c0

@cerr Here is a small example that demonstrates it:

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QDialog d;
    d.resize(400, 400);
    d.show();

    QVBoxLayout mainLayout;
    d.setLayout(&mainLayout);

    QGroupBox box;
    box.setTitle("MyGroupBox");
    mainLayout.addWidget(&box);

    QLabel label("MyLabel");
    mainLayout.addWidget(&label);
  
    return app.exec();
}

You can see the QGroupBox properly aligned to the left. Here the Groupbox is added into the main widget's layout. Try to do in the similar way.

cerr

@p3c0 said in how to setAlignment of QGroupBox:

Thanks but I want the
box.setTitle("MyGroupBox"); title to be left aligned, so I altered your example code to:

    QGroupBox box;
    box.setTitle("MyGroupBox");
    box.setAlignment(Qt::AlignLeft);
    mainLayout.addWidget(&box);

but like in my application above, the title stays centered, can it be left aligned at all?
This is from http://doc.qt.io/qt-5/qgroupbox.html#alignment-prop:

alignment : Qt::Alignment

This property holds the alignment of the group box title.

SGaist

Hi,

Which window manager are you using ?

I just tested on macOS and the alignment is working properly (self built 5.7)

cerr

@SGaist said in how to setAlignment of QGroupBox:

Hi,

Which window manager are you using ?

I just tested on macOS and the alignment is working properly (self built 5.7)

KDE 5.5.5 with Qt 5.5.1 (Kubuntu 16.04)

p3c0

@cerr What does QApplication::style() returns in your case ?

cerr

@p3c0 said in how to setAlignment of QGroupBox:

@cerr What does QApplication::style() returns in your case ?

? std::cout << "style:" << QApplication::style() << std::endl; returns:style:0x12a4590 is this what you were looking for?

p3c0

@cerr I was just trying to find out what style was you application using. I assumed you might use qDebug() which would have properly printed the object info. Anyway try this:

QApplication::style()->objectName();

If it prints "fusion" (atleast on my system it does, KDE too here) then the the problem might be related to this bug which says it was fixed in Qt 5.6.1. Can you try the newer version ?

cerr

@p3c0 said in how to setAlignment of QGroupBox:

objectName();

Alright yes, qDebug() << "style:" << QApplication::style()->objectName(); gives me style: "breeze"

p3c0

@cerr I can only suggest you to try with latest Qt version to rule out the possibility of this bug.