QGroupBox Class▲
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Header: QGroupBox
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Widgets)
target_link_libraries(mytarget PRIVATE Qt6::Widgets)
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qmake: QT += widgets
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Inherits: QWidget
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Inherited By:
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Group: QGroupBox is part of organizers, geomanagement
Detailed Description▲
A group box provides a frame, a title on top, a keyboard shortcut, and displays various other widgets inside itself. The keyboard shortcut moves keyboard focus to one of the group box's child widgets.
QGroupBox also lets you set the title (normally set in the constructor) and the title's alignment. Group boxes can be checkable. Child widgets in checkable group boxes are enabled or disabled depending on whether or not the group box is checked.
You can minimize the space consumption of a group box by enabling the flat property. In most styles, enabling this property results in the removal of the left, right and bottom edges of the frame.
QGroupBox doesn't automatically lay out the child widgets (which are often QCheckBoxes or QRadioButtons but can be any widgets). The following example shows how we can set up a QGroupBox with a layout:
QGroupBox *groupBox = new QGroupBox(tr("Exclusive Radio Buttons"));
QRadioButton *radio1 = new QRadioButton(tr("&Radio button 1"));
QRadioButton *radio2 = new QRadioButton(tr("R&adio button 2"));
QRadioButton *radio3 = new QRadioButton(tr("Ra&dio button 3"));
radio1->setChecked(true);
QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(radio1);
vbox->addWidget(radio2);
vbox->addWidget(radio3);
vbox->addStretch(1);
groupBox->setLayout(vbox);See Also▲
See also QButtonGroup, Group Box Example
Property Documentation▲
alignment : Qt::Alignment▲
This property holds the alignment of the group box title.
Most styles place the title at the top of the frame. The horizontal alignment of the title can be specified using single values from the following list:
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Qt::AlignLeft aligns the title text with the left-hand side of the group box.
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Qt::AlignRight aligns the title text with the right-hand side of the group box.
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Qt::AlignHCenter aligns the title text with the horizontal center of the group box.
The default alignment is Qt::AlignLeft.
Access functions:
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alignment() const
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void setAlignment(int alignment)
See Also▲
See also Qt::Alignment
checkable : bool▲
This property holds whether the group box has a checkbox in its title
If this property is true, the group box displays its title using a checkbox in place of an ordinary label. If the checkbox is checked, the group box's children are enabled; otherwise, they are disabled and inaccessible.
By default, group boxes are not checkable.
If this property is enabled for a group box, it will also be initially checked to ensure that its contents are enabled.
Access functions:
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bool isCheckable() const
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void setCheckable(bool checkable)
See Also▲
See also checked
checked : bool▲
This property holds whether the group box is checked
If the group box is checkable, it is displayed with a check box. If the check box is checked, the group box's children are enabled; otherwise, the children are disabled and are inaccessible to the user.
By default, checkable group boxes are also checked.
Access functions:
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bool isChecked() const
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void setChecked(bool checked)
Notifier signal:
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void toggled(bool on)
See Also▲
See also checkable
flat : bool▲
This property holds whether the group box is painted flat or has a frame
A group box usually consists of a surrounding frame with a title at the top. If this property is enabled, only the top part of the frame is drawn in most styles; otherwise, the whole frame is drawn.
By default, this property is disabled, i.e., group boxes are not flat unless explicitly specified.
Note: In some styles, flat and non-flat group boxes have similar representations and may not be as distinguishable as they are in other styles.
Access functions:
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bool isFlat() const
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void setFlat(bool flat)
See Also▲
See also title
title : QString▲
This property holds the group box title text
The group box title text will have a keyboard shortcut if the title contains an ampersand ('&') followed by a letter.
g->setTitle("&User information");In the example above, Alt+U moves the keyboard focus to the group box. See the QShortcut documentation for details (to display an actual ampersand, use '&&').
There is no default title text.
Access functions:
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title() const
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void setTitle(const &title)
See Also▲
See also alignment
Member Function Documentation▲
[explicit] QGroupBox::QGroupBox(QWidget *parent = nullptr)▲
Constructs a group box widget with the given parent but with no title.
[explicit] QGroupBox::QGroupBox(const QString &title, QWidget *parent = nullptr)▲
Constructs a group box with the given title and parent.
[virtual] QGroupBox::~QGroupBox()▲
Destroys the group box.
[override virtual protected] void QGroupBox::changeEvent(QEvent *ev)▲
Reimplements: QWidget::changeEvent(QEvent *event).
[override virtual protected] void QGroupBox::childEvent(QChildEvent *c)▲
Reimplements: QObject::childEvent(QChildEvent *event).
void QGroupBox::clicked(bool checked = false)▲
This signal is emitted when the check box is activated (i.e., pressed down then released while the mouse cursor is inside the button), or when the shortcut key is typed. Notably, this signal is not emitted if you call setChecked().
If the check box is checked, checked is true; it is false if the check box is unchecked.
See Also▲
[override virtual protected] bool QGroupBox::event(QEvent *e)▲
Reimplements: QWidget::event(QEvent *event).
[override virtual protected] void QGroupBox::focusInEvent(QFocusEvent *fe)▲
Reimplements: QWidget::focusInEvent(QFocusEvent *event).
[virtual protected] void QGroupBox::initStyleOption(QStyleOptionGroupBox *option) const▲
Initialize option with the values from this QGroupBox. This method is useful for subclasses when they need a QStyleOptionGroupBox, but don't want to fill in all the information themselves.
See Also▲
See also QStyleOption::initFrom()
[override virtual] QSize QGroupBox::minimumSizeHint() const▲
Reimplements an access function for property: QWidget::minimumSizeHint.
[override virtual protected] void QGroupBox::mouseMoveEvent(QMouseEvent *event)▲
Reimplements: QWidget::mouseMoveEvent(QMouseEvent *event).
[override virtual protected] void QGroupBox::mousePressEvent(QMouseEvent *event)▲
Reimplements: QWidget::mousePressEvent(QMouseEvent *event).
[override virtual protected] void QGroupBox::mouseReleaseEvent(QMouseEvent *event)▲
Reimplements: QWidget::mouseReleaseEvent(QMouseEvent *event).
[override virtual protected] void QGroupBox::paintEvent(QPaintEvent *event)▲
Reimplements: QWidget::paintEvent(QPaintEvent *event).
[override virtual protected] void QGroupBox::resizeEvent(QResizeEvent *e)▲
Reimplements: QWidget::resizeEvent(QResizeEvent *event).