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Forum Update on Monday, May 27th 2025

how to setAlignment of QGroupBox

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  • p3c0P Offline
    p3c0P Offline
    p3c0
    Moderators
    wrote on last edited by
    #9

    @cerr What I imagined was that you are trying to create a main widget and in that you want to add a groupbox and terminalwidget so I suggested to add this layout(vbox) to the main widget and in that you add these 2 widgets so that they are arranged vertically. Is this the requirement ?

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    cerrC 1 Reply Last reply
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    • p3c0P p3c0

      @cerr What I imagined was that you are trying to create a main widget and in that you want to add a groupbox and terminalwidget so I suggested to add this layout(vbox) to the main widget and in that you add these 2 widgets so that they are arranged vertically. Is this the requirement ?

      cerrC Offline
      cerrC Offline
      cerr
      wrote on last edited by
      #10

      @p3c0 said in how to setAlignment of QGroupBox:

      @cerr What I imagined was that you are trying to create a main widget and in that you want to add a groupbox and terminalwidget so I suggested to add this layout(vbox) to the main widget and in that you add these 2 widgets so that they are arranged vertically. Is this the requirement ?

      By main widget you understand a "mother widget" that would contain the groupbox & the terminal widget, right? What I want to do is, to nest the terminalwidget within a groupbox so that there is an ability to assign the terminalwidget some kind of membership (that makes visually sense, too). If you have a better idea on how to solve this, please don't be shy to let me know! Thanks!

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      • p3c0P Offline
        p3c0P Offline
        p3c0
        Moderators
        wrote on last edited by
        #11

        @cerr

        By main widget you understand a "mother widget" that would contain the groupbox & the terminal widget, right?

        Yes.

        So now where do you add this groupbox ? You should add this groupbox inside another layout so that it is laid properly.

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        cerrC 1 Reply Last reply
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        • p3c0P p3c0

          @cerr

          By main widget you understand a "mother widget" that would contain the groupbox & the terminal widget, right?

          Yes.

          So now where do you add this groupbox ? You should add this groupbox inside another layout so that it is laid properly.

          cerrC Offline
          cerrC Offline
          cerr
          wrote on last edited by
          #12

          @p3c0 said in how to setAlignment of QGroupBox:

          Yes.

          So now where do you add this groupbox ? You should add this groupbox inside another layout so that it is laid properly.

          So I currently have something lke groupBox(vbox(terminalWidget())) and I think from what you're saying, I should have something like ContainerWidget(vbox(groupBox(terminalWidget))), is that correct? Any idea what kind of container widget I can use for this? Or better, vbox(groupBox(terminalWidget)) should do as well, shouldn't it?

          cerrC 1 Reply Last reply
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          • p3c0P Offline
            p3c0P Offline
            p3c0
            Moderators
            wrote on last edited by
            #13

            @cerr

            ContainerWidget(vbox(groupBox(terminalWidget))), is that correct?

            Yes. You can use QDialog as the container widget.

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            • cerrC cerr

              @p3c0 said in how to setAlignment of QGroupBox:

              Yes.

              So now where do you add this groupbox ? You should add this groupbox inside another layout so that it is laid properly.

              So I currently have something lke groupBox(vbox(terminalWidget())) and I think from what you're saying, I should have something like ContainerWidget(vbox(groupBox(terminalWidget))), is that correct? Any idea what kind of container widget I can use for this? Or better, vbox(groupBox(terminalWidget)) should do as well, shouldn't it?

              cerrC Offline
              cerrC Offline
              cerr
              wrote on last edited by cerr
              #14

              @p3c0 said in how to setAlignment of QGroupBox:

              @cerr

              ContainerWidget(vbox(groupBox(terminalWidget))), is that correct?

              Yes. You can use QDialog as the container widget.

              But I don't want it to be in abother dialog and it already is in a QTabWidget....I should use that as the outer most layer probably...

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              • p3c0P Offline
                p3c0P Offline
                p3c0
                Moderators
                wrote on last edited by
                #15

                @cerr Ok. But remember to add that groupbox inside a layout.

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                cerrC 1 Reply Last reply
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                • p3c0P p3c0

                  @cerr Ok. But remember to add that groupbox inside a layout.

                  cerrC Offline
                  cerrC Offline
                  cerr
                  wrote on last edited by
                  #16

                  @p3c0 said in how to setAlignment of QGroupBox:

                  @cerr Ok. But remember to add that groupbox inside a layout.

                  So what actually happens in my application is:
                  MainWindow->QTabWidget->session->setupSession->addTerminal->QVBoxWidget(QGroupBox->terminalWidget) and you suggest i'd better be like mainwindow->QVBoxWidget(QTabWidget->session->setupSession->addTerminal->QGroupBox->terminalWidget) ?
                  Will that change things?

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                  • p3c0P Offline
                    p3c0P Offline
                    p3c0
                    Moderators
                    wrote on last edited by p3c0
                    #17

                    @cerr No. The earlier one.
                    MainWindow->QTabWidget->session->setupSession->addTerminal->QVBoxWidget(QGroupBox->terminalWidget)

                    But I dont see that happening in your original code.

                    QGroupBox *groupBox = new QGroupBox(tr("Test"), parent); //<--- This should be added in a layout too.
                    groupBox->setAlignment(Qt::AlignLeft);
                    
                    QWidget* terminalWidget = terminal->terminalWidget();
                    
                    QVBoxLayout *vbox = new QVBoxLayout;
                    vbox->addWidget(terminalWidget);
                    groupBox->setLayout(vbox); // <--- This sets layout inside it
                    
                    terminalWidget ->show();
                    if (/*terminalWidget*/groupBox) /*terminalWidget*/groupBox->setFocus();
                       groupBox->show();
                    

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                    cerrC 1 Reply Last reply
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                    • p3c0P p3c0

                      @cerr No. The earlier one.
                      MainWindow->QTabWidget->session->setupSession->addTerminal->QVBoxWidget(QGroupBox->terminalWidget)

                      But I dont see that happening in your original code.

                      QGroupBox *groupBox = new QGroupBox(tr("Test"), parent); //<--- This should be added in a layout too.
                      groupBox->setAlignment(Qt::AlignLeft);
                      
                      QWidget* terminalWidget = terminal->terminalWidget();
                      
                      QVBoxLayout *vbox = new QVBoxLayout;
                      vbox->addWidget(terminalWidget);
                      groupBox->setLayout(vbox); // <--- This sets layout inside it
                      
                      terminalWidget ->show();
                      if (/*terminalWidget*/groupBox) /*terminalWidget*/groupBox->setFocus();
                         groupBox->show();
                      
                      cerrC Offline
                      cerrC Offline
                      cerr
                      wrote on last edited by
                      #18

                      @p3c0 said in how to setAlignment of QGroupBox:

                      @cerr No. The earlier one.
                      MainWindow->QTabWidget->session->setupSession->addTerminal->QVBoxWidget(QGroupBox->terminalWidget)

                      But I dont see that happening in your original code.

                      QGroupBox *groupBox = new QGroupBox(tr("Test"), parent); //<--- This should be added in a layout too.
                      groupBox->setAlignment(Qt::AlignLeft);
                      
                      QWidget* terminalWidget = terminal->terminalWidget();
                      
                      QVBoxLayout *vbox = new QVBoxLayout;
                      vbox->addWidget(terminalWidget);
                      groupBox->setLayout(vbox); // <--- This sets layout inside it
                      
                      terminalWidget ->show();
                      if (/*terminalWidget*/groupBox) /*terminalWidget*/groupBox->setFocus();
                         groupBox->show();
                      

                      Sorry,

                      Yeah, I had changed it in the meantime to:

                          QGroupBox *groupBox = new QGroupBox(tr("Test"), parent);
                          groupBox->setAlignment(Qt::AlignLeft);
                          QWidget* terminalWidget = terminal->terminalWidget();
                          QVBoxLayout *vbox = new QVBoxLayout;
                          vbox->addWidget(terminalWidget);
                          vbox->addWidget(groupBox);
                          //groupBox->setLayout(vbox);  <- if i remove the comment, it won't start my application at all...
                          terminalWidget ->show();
                          if (/*terminalWidget*/groupBox) /*terminalWidget*/groupBox->setFocus();
                      
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                      • p3c0P Offline
                        p3c0P Offline
                        p3c0
                        Moderators
                        wrote on last edited by
                        #19

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

                        157

                        cerrC 1 Reply Last reply
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                        • p3c0P p3c0

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

                          cerrC Offline
                          cerrC Offline
                          cerr
                          wrote on last edited by
                          #20

                          @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...
                          1 Reply Last reply
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                          • p3c0P Offline
                            p3c0P Offline
                            p3c0
                            Moderators
                            wrote on last edited by
                            #21

                            @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.

                            157

                            cerrC 1 Reply Last reply
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                            • p3c0P 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.

                              cerrC Offline
                              cerrC Offline
                              cerr
                              wrote on last edited by cerr
                              #22

                              @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?

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                              • p3c0P Offline
                                p3c0P Offline
                                p3c0
                                Moderators
                                wrote on last edited by p3c0
                                #23

                                @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.

                                157

                                cerrC 1 Reply Last reply
                                1
                                • p3c0P 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.

                                  cerrC Offline
                                  cerrC Offline
                                  cerr
                                  wrote on last edited by
                                  #24

                                  @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.

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #25

                                    Hi,

                                    Which window manager are you using ?

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

                                    Interested in AI ? www.idiap.ch
                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    cerrC 1 Reply Last reply
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                                    • SGaistS SGaist

                                      Hi,

                                      Which window manager are you using ?

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

                                      cerrC Offline
                                      cerrC Offline
                                      cerr
                                      wrote on last edited by
                                      #26

                                      @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)

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                                      • p3c0P Offline
                                        p3c0P Offline
                                        p3c0
                                        Moderators
                                        wrote on last edited by
                                        #27

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

                                        157

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                                        • p3c0P p3c0

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

                                          cerrC Offline
                                          cerrC Offline
                                          cerr
                                          wrote on last edited by
                                          #28

                                          @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?

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