Adding QGroupBox to QTabWidget

[mclark]

Greetings,

I am required to add QGroupBox objects (each containing a QTableWidget) to the QTabWIdget which resides on the central widget of my applications main window.

I have been unable to add the QGroupBox objects to the QTabWidget object. I assume it is because I don't know what to pass into the ui.setupUI( ??? ) function. The group box with the table in it appears in a separate window unattached to the programs main window when using the following code.

MainWin::MainWin( QWidget* parent, Qt::WFlags flags ) : QMainWindow( parent, flags )
{
    ui.setupUi( this );
 
    m_pCentralWidget = new QWidget;
    setCentralWidget( m_pCentralWidget );
 
    // create tabs
    m_tabWidget = new QTabWidget( this );
 
    ui.tabWidget = m_tabWidget;
 
    m_tabDMX = new DMXTable( this );
    ui.tabWidget->addTab( m_tabDMX, tr("First Tab") );
 
    m_tabAll = new AllTab( this );
    ui.tabWidget->addTab( m_tabAll, tr("Second Tab") );
 
    // Load frame with required stuff; Place widgets in frame; left to right
    QFrame* qFrame = new QFrame( this );
    qFrame->setFrameRect( QRect( 0, 0, 0, 0 ) );
    qFrame->setFrameStyle( QFrame::Box | QFrame::Plain );
 
    // Checkbox in frame
    m_onlineChk = new QCheckBox( "Show Online Table  ", qFrame );
    m_onlineChk->setToolTip( "Show/Hide Online Table" );
    connect( m_onlineChk, SIGNAL( clicked() ), this, SLOT( onlineClicked() ) );
    m_onlineChk->setCheckState( Qt::Checked );
 
    QHBoxLayout* frameLayout = new QHBoxLayout( qFrame );
    frameLayout->setSizeConstraint( QLayout::SetMaximumSize );
    frameLayout->addWidget( m_onlineChk, 0, Qt::AlignRight );
    frameLayout->insertStretch( 0, 0 );
    qFrame->setLayout( frameLayout );
 
    // Put everything onto the main window.
    m_centralLayout = new QGridLayout;
 
    // Tab widget is 1st
    m_centralLayout->addWidget( m_tabWidget, 1, 0, 1, 1);
 
    // Frame is on bottom (just above the status bar)
    m_centralLayout->addWidget( qFrame, 2, 0, 1, 1 );
 
    m_pCentralWidget->setLayout( m_centralLayout );
 
    m_pExitAct = new QAction( tr("E&xit"), this );
    m_pExitAct->setShortcut( tr("Ctrl+Q") );
    connect( m_pExitAct, SIGNAL(triggered()), this, SLOT(close()) );
 
    m_pFileMenu = menuBar()->addMenu( tr("&File") );
    m_pFileMenu->addAction( m_pExitAct );
 
    show();
}

MainWin::MainWin( QWidget* parent, Qt::WFlags flags ) : QMainWindow( parent, flags )
{
    ui.setupUi( this );

    m_pCentralWidget = new QWidget;
    setCentralWidget( m_pCentralWidget );

    // create tabs
    m_tabWidget = new QTabWidget( this );

    ui.tabWidget = m_tabWidget;

    m_tabDMX = new DMXTable( this );
    ui.tabWidget->addTab( m_tabDMX, tr("First Tab") );

    m_tabAll = new AllTab( this );
    ui.tabWidget->addTab( m_tabAll, tr("Second Tab") );

    // Load frame with required stuff; Place widgets in frame; left to right
    QFrame* qFrame = new QFrame( this );
    qFrame->setFrameRect( QRect( 0, 0, 0, 0 ) );
    qFrame->setFrameStyle( QFrame::Box | QFrame::Plain );

    // Checkbox in frame
    m_onlineChk = new QCheckBox( "Show Online Table  ", qFrame );
    m_onlineChk->setToolTip( "Show/Hide Online Table" );
    connect( m_onlineChk, SIGNAL( clicked() ), this, SLOT( onlineClicked() ) );
    m_onlineChk->setCheckState( Qt::Checked );

    QHBoxLayout* frameLayout = new QHBoxLayout( qFrame );
    frameLayout->setSizeConstraint( QLayout::SetMaximumSize );
    frameLayout->addWidget( m_onlineChk, 0, Qt::AlignRight );
    frameLayout->insertStretch( 0, 0 );
    qFrame->setLayout( frameLayout );

    // Put everything onto the main window.
    m_centralLayout = new QGridLayout;

    // Tab widget is 1st
    m_centralLayout->addWidget( m_tabWidget, 1, 0, 1, 1);

    // Frame is on bottom (just above the status bar)
    m_centralLayout->addWidget( qFrame, 2, 0, 1, 1 );

    m_pCentralWidget->setLayout( m_centralLayout );

    m_pExitAct = new QAction( tr("E&xit"), this );
    m_pExitAct->setShortcut( tr("Ctrl+Q") );
    connect( m_pExitAct, SIGNAL(triggered()), this, SLOT(close()) );

    m_pFileMenu = menuBar()->addMenu( tr("&File") );
    m_pFileMenu->addAction( m_pExitAct );

    show();
}

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// DMX Table Tab Class
DMXTable::DMXTable( QWidget* pParent ) : QWidget( /*pParent*/ )
{
    m_parent = reinterpret_cast<MainWin*>( pParent );
 
    ui.setupUi( m_parent );
//  ui.setupUi( this );
 
    m_onlineGroupBox = new QGroupBox( tr("Online Devices") );
 
    QScrollArea* pTableArea = new QScrollArea;
    m_pOnlineTable = new QTableWidget(  1, 5, m_parent );
 
    QStringList sLabels;
    sLabels << "Status" << "Name" << "Type" << "IP Address" << "Model Name";
 
    m_pOnlineTable->setHorizontalHeaderLabels( sLabels );
    m_pOnlineTable->setColumnWidth( 0, 40 );
    m_pOnlineTable->setColumnWidth( 1, 150 );
    m_pOnlineTable->setColumnWidth( 2, 130 );
    m_pOnlineTable->setColumnWidth( 3, 120 );
    m_pOnlineTable->setColumnWidth( 4, 200 );
 
    pTableArea->setWidgetResizable( true );
    pTableArea->setWidget( m_pOnlineTable );
 
    QGridLayout* layout = new QGridLayout;
    layout->addWidget( pTableArea, 0, 0 );
 
    m_onlineGroupBox->setLayout( layout );
    m_onlineGroupBox->show();
}

// DMX Table Tab Class
DMXTable::DMXTable( QWidget* pParent ) : QWidget( /*pParent*/ )
{
    m_parent = reinterpret_cast<MainWin*>( pParent );

    ui.setupUi( m_parent );
//  ui.setupUi( this );

    m_onlineGroupBox = new QGroupBox( tr("Online Devices") );

    QScrollArea* pTableArea = new QScrollArea;
    m_pOnlineTable = new QTableWidget(  1, 5, m_parent );

    QStringList sLabels;
    sLabels << "Status" << "Name" << "Type" << "IP Address" << "Model Name";

    m_pOnlineTable->setHorizontalHeaderLabels( sLabels );
    m_pOnlineTable->setColumnWidth( 0, 40 );
    m_pOnlineTable->setColumnWidth( 1, 150 );
    m_pOnlineTable->setColumnWidth( 2, 130 );
    m_pOnlineTable->setColumnWidth( 3, 120 );
    m_pOnlineTable->setColumnWidth( 4, 200 );

    pTableArea->setWidgetResizable( true );
    pTableArea->setWidget( m_pOnlineTable );

    QGridLayout* layout = new QGridLayout;
    layout->addWidget( pTableArea, 0, 0 );

    m_onlineGroupBox->setLayout( layout );
    m_onlineGroupBox->show();
}

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If I use "ui.setupUi( this )" in the DMXTable class I get the following compiler error: 'Ui_DMXTableClass::setupUi': cannot convert parameter 1 from 'DMXTable *const' to 'QMainWindow *'.

I don't understand what to pass to the setupUI() function to get the QGroupBox to show on the tab widget. Anyone know what I am doing wrong?

[wysota]

You don't have to pass anything there. Just create your tab widget and set it as the central widget. You shouldn't touch setupUi() at all.

MyWindow::MyWindow(QWidget *parent) : QMainWindow(parent){
  ui.setupUi(this);
  QTabWidget *tw = new QTabWidget(this);
  setCentralWidget(tw);
  QGroupBox *gb1 = new QGroupBox(tw);
  tw->addPage(gb1, "first");
  QHBoxLayout *l = new QHBoxLayout(gb1);
  DMXTable *t1 = new DMXTable;
  l->addWidget(t1);
  //...
}

MyWindow::MyWindow(QWidget *parent) : QMainWindow(parent){
  ui.setupUi(this);
  QTabWidget *tw = new QTabWidget(this);
  setCentralWidget(tw);
  QGroupBox *gb1 = new QGroupBox(tw);
  tw->addPage(gb1, "first");
  QHBoxLayout *l = new QHBoxLayout(gb1);
  DMXTable *t1 = new DMXTable;
  l->addWidget(t1);
  //...
}

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[mclark]

wysota, thanks for the reply.

Your solution works fine. I was trying to copy code used in setting up tabs in a dialog and was not being careful about what I culled.

This is, by far, the most helpful forum I've ever seen. You folks are great!