The QAbstractSpinBox class provides a spinbox and a line edit to display values. More...

#include <qabstractspinbox.h>

Inheritance diagram for QAbstractSpinBox:

Collaboration diagram for QAbstractSpinBox:

Public Types
enum	StepEnabledFlag { StepNone = 0x00 , StepUpEnabled = 0x01 , StepDownEnabled = 0x02 }
	\value StepNone \value StepUpEnabled \value StepDownEnabled More...

enum	ButtonSymbols { UpDownArrows , PlusMinus , NoButtons }
	This enum type describes the symbols that can be displayed on the buttons in a spin box. More...

enum	CorrectionMode { CorrectToPreviousValue , CorrectToNearestValue }
	This enum type describes the mode the spinbox will use to correct an \l{QValidator::}{Intermediate} value if editing finishes. More...

enum	StepType { DefaultStepType , AdaptiveDecimalStepType }
	\value DefaultStepType \value AdaptiveDecimalStepType More...

Public Types inherited from QWidget
enum	RenderFlag { DrawWindowBackground = 0x1 , DrawChildren = 0x2 , IgnoreMask = 0x4 }
	This enum describes how to render the widget when calling QWidget::render(). More...

Public Types inherited from QPaintDevice
enum	PaintDeviceMetric { PdmWidth = 1 , PdmHeight , PdmWidthMM , PdmHeightMM , PdmNumColors , PdmDepth , PdmDpiX , PdmDpiY , PdmPhysicalDpiX , PdmPhysicalDpiY , PdmDevicePixelRatio , PdmDevicePixelRatioScaled }

Public Slots
void	stepUp ()
	Steps up by one linestep Calling this slot is analogous to calling stepBy(1);.

void	stepDown ()
	Steps down by one linestep Calling this slot is analogous to calling stepBy(-1);.

void	selectAll ()
	Selects all the text in the spinbox except the prefix and suffix.

virtual void	clear ()
	Clears the lineedit of all text but prefix and suffix.

Public Slots inherited from QWidget
void	setEnabled (bool)

void	setDisabled (bool)
	Disables widget input events if disable is true; otherwise enables input events.

void	setWindowModified (bool)

void	setWindowTitle (const QString &)

void	setStyleSheet (const QString &styleSheet)

void	setFocus ()
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the \l{isActiveWindow()}{active window}.

void	update ()
	Updates the widget unless updates are disabled or the widget is hidden.

void	repaint ()
	Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the widget is hidden.

virtual void	setVisible (bool visible)

void	setHidden (bool hidden)
	Convenience function, equivalent to setVisible(!hidden).

void	show ()
	Shows the widget and its child widgets.

void	hide ()
	Hides the widget.

void	showMinimized ()
	Shows the widget minimized, as an icon.

void	showMaximized ()
	Shows the widget maximized.

void	showFullScreen ()
	Shows the widget in full-screen mode.

void	showNormal ()
	Restores the widget after it has been maximized or minimized.

bool	close ()
	Closes this widget.

void	raise ()
	Raises this widget to the top of the parent widget's stack.

void	lower ()
	Lowers the widget to the bottom of the parent widget's stack.

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals
void	editingFinished ()
	This signal is emitted editing is finished.

Signals inherited from QWidget
void	windowTitleChanged (const QString &title)
	This signal is emitted when the window's title has changed, with the new title as an argument.

void	windowIconChanged (const QIcon &icon)
	This signal is emitted when the window's icon has changed, with the new icon as an argument.

void	windowIconTextChanged (const QString &iconText)
	This signal is emitted when the window's icon text has changed, with the new iconText as an argument.

void	customContextMenuRequested (const QPoint &pos)
	This signal is emitted when the widget's \l contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget.

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Public Member Functions
	QAbstractSpinBox (QWidget *parent=nullptr)
	Constructs an abstract spinbox with the given parent with default \l wrapping, and \l alignment properties.

	~QAbstractSpinBox ()
	Called when the QAbstractSpinBox is destroyed.

ButtonSymbols	buttonSymbols () const

void	setButtonSymbols (ButtonSymbols bs)

void	setCorrectionMode (CorrectionMode cm)

CorrectionMode	correctionMode () const

bool	hasAcceptableInput () const

QString	text () const

QString	specialValueText () const

void	setSpecialValueText (const QString &txt)

bool	wrapping () const

void	setWrapping (bool w)

void	setReadOnly (bool r)

bool	isReadOnly () const

void	setKeyboardTracking (bool kt)

bool	keyboardTracking () const

void	setAlignment (Qt::Alignment flag)

Qt::Alignment	alignment () const

void	setFrame (bool)

bool	hasFrame () const

void	setAccelerated (bool on)

bool	isAccelerated () const

void	setGroupSeparatorShown (bool shown)

bool	isGroupSeparatorShown () const

QSize	sizeHint () const override
	\reimp

QSize	minimumSizeHint () const override
	\reimp

void	interpretText ()
	This function interprets the text of the spin box.

bool	event (QEvent *event) override
	\reimp

QVariant	inputMethodQuery (Qt::InputMethodQuery) const override
	\reimp

virtual QValidator::State	validate (QString &input, int &pos) const
	This virtual function is called by the QAbstractSpinBox to determine whether input is valid.

virtual void	fixup (QString &input) const
	This virtual function is called by the QAbstractSpinBox if the input is not validated to QValidator::Acceptable when Return is pressed or interpretText() is called.

virtual void	stepBy (int steps)
	Virtual function that is called whenever the user triggers a step.

Public Member Functions inherited from QWidget
	QWidget (QWidget *parent=nullptr, Qt::WindowFlags f=Qt::WindowFlags())
	Constructs a widget which is a child of parent, with widget flags set to f.

	~QWidget ()
	Destroys the widget.

int	devType () const override

WId	winId () const
	Returns the window system identifier of the widget.

void	createWinId ()

WId	internalWinId () const

WId	effectiveWinId () const

QStyle *	style () const

void	setStyle (QStyle *)
	Sets the widget's GUI style to style.

bool	isWindow () const
	Returns `true` if the widget is an independent window, otherwise returns `false`.

bool	isModal () const

Qt::WindowModality	windowModality () const

void	setWindowModality (Qt::WindowModality windowModality)

bool	isEnabled () const

bool	isEnabledTo (const QWidget *) const
	Returns `true` if this widget would become enabled if ancestor is enabled; otherwise returns `false`.

QRect	frameGeometry () const

const QRect &	geometry () const

QRect	normalGeometry () const

int	x () const

int	y () const

QPoint	pos () const

QSize	frameSize () const

QSize	size () const

int	width () const

int	height () const

QRect	rect () const

QRect	childrenRect () const

QRegion	childrenRegion () const

QSize	minimumSize () const

QSize	maximumSize () const

int	minimumWidth () const

int	minimumHeight () const

int	maximumWidth () const

int	maximumHeight () const

void	setMinimumSize (const QSize &)

void	setMinimumSize (int minw, int minh)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function corresponds to setMinimumSize(QSize(minw, minh)).

void	setMaximumSize (const QSize &)

void	setMaximumSize (int maxw, int maxh)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function corresponds to setMaximumSize(QSize(maxw, maxh)).

void	setMinimumWidth (int minw)

void	setMinimumHeight (int minh)

void	setMaximumWidth (int maxw)

void	setMaximumHeight (int maxh)

QSize	sizeIncrement () const

void	setSizeIncrement (const QSize &)

void	setSizeIncrement (int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the x (width) size increment to w and the y (height) size increment to h.

QSize	baseSize () const

void	setBaseSize (const QSize &)

void	setBaseSize (int basew, int baseh)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setBaseSize(QSize(basew, baseh)).

void	setFixedSize (const QSize &)
	Sets both the minimum and maximum sizes of the widget to s, thereby preventing it from ever growing or shrinking.

void	setFixedSize (int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the width of the widget to w and the height to h.

void	setFixedWidth (int w)
	Sets both the minimum and maximum width of the widget to w without changing the heights.

void	setFixedHeight (int h)
	Sets both the minimum and maximum heights of the widget to h without changing the widths.

QPointF	mapToGlobal (const QPointF &) const
	Translates the widget coordinate pos to global screen coordinates.

QPoint	mapToGlobal (const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QPointF	mapFromGlobal (const QPointF &) const
	Translates the global screen coordinate pos to widget coordinates.

QPoint	mapFromGlobal (const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QPointF	mapToParent (const QPointF &) const
	Translates the widget coordinate pos to a coordinate in the parent widget.

QPoint	mapToParent (const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QPointF	mapFromParent (const QPointF &) const
	Translates the parent widget coordinate pos to widget coordinates.

QPoint	mapFromParent (const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QPointF	mapTo (const QWidget *, const QPointF &) const
	Translates the widget coordinate pos to the coordinate system of parent.

QPoint	mapTo (const QWidget *, const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QPointF	mapFrom (const QWidget *, const QPointF &) const
	Translates the widget coordinate pos from the coordinate system of parent to this widget's coordinate system.

QPoint	mapFrom (const QWidget *, const QPoint &) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QWidget *	window () const
	Returns the window for this widget, i.e.

QWidget *	nativeParentWidget () const

QWidget *	topLevelWidget () const

const QPalette &	palette () const

void	setPalette (const QPalette &)

void	setBackgroundRole (QPalette::ColorRole)
	Sets the background role of the widget to role.

QPalette::ColorRole	backgroundRole () const
	Returns the background role of the widget.

void	setForegroundRole (QPalette::ColorRole)
	Sets the foreground role of the widget to role.

QPalette::ColorRole	foregroundRole () const
	Returns the foreground role.

const QFont &	font () const

void	setFont (const QFont &)

QFontMetrics	fontMetrics () const
	Returns the font metrics for the widget's current font.

QFontInfo	fontInfo () const
	Returns the font info for the widget's current font.

QCursor	cursor () const

void	setCursor (const QCursor &)

void	unsetCursor ()

void	setMouseTracking (bool enable)

bool	hasMouseTracking () const

bool	underMouse () const
	Returns `true` if the widget is under the mouse cursor; otherwise returns `false`.

void	setTabletTracking (bool enable)

bool	hasTabletTracking () const

void	setMask (const QBitmap &)
	Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible.

void	setMask (const QRegion &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Causes only the parts of the widget which overlap region to be visible.

QRegion	mask () const
	Returns the mask currently set on a widget.

void	clearMask ()
	Removes any mask set by setMask().

void	render (QPaintDevice *target, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground\|DrawChildren))

void	render (QPainter *painter, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground\|DrawChildren))
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Renders the widget into the painter's QPainter::device().

Q_INVOKABLE QPixmap	grab (const QRect &rectangle=QRect(QPoint(0, 0), QSize(-1, -1)))

void	grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags())
	Subscribes the widget to a given gesture with specific flags.

void	ungrabGesture (Qt::GestureType type)
	Unsubscribes the widget from a given gesture type.

QString	styleSheet () const

QString	windowTitle () const

void	setWindowIcon (const QIcon &icon)

QIcon	windowIcon () const

void	setWindowIconText (const QString &)

QString	windowIconText () const

void	setWindowRole (const QString &)
	Sets the window's role to role.

QString	windowRole () const
	Returns the window's role, or an empty string.

void	setWindowFilePath (const QString &filePath)

QString	windowFilePath () const

void	setWindowOpacity (qreal level)

qreal	windowOpacity () const

bool	isWindowModified () const

void	setLayoutDirection (Qt::LayoutDirection direction)

Qt::LayoutDirection	layoutDirection () const

void	unsetLayoutDirection ()

void	setLocale (const QLocale &locale)

QLocale	locale () const

void	unsetLocale ()

bool	isRightToLeft () const

bool	isLeftToRight () const

bool	isActiveWindow () const

void	activateWindow ()
	Sets the top-level widget containing this widget to be the active window.

void	clearFocus ()
	Takes keyboard input focus from the widget.

void	setFocus (Qt::FocusReason reason)
	Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the \l{isActiveWindow()}{active window}.

Qt::FocusPolicy	focusPolicy () const

void	setFocusPolicy (Qt::FocusPolicy policy)

bool	hasFocus () const

void	setFocusProxy (QWidget *)
	Sets the widget's focus proxy to widget w.

QWidget *	focusProxy () const
	Returns the focus proxy, or \nullptr if there is no focus proxy.

Qt::ContextMenuPolicy	contextMenuPolicy () const

void	setContextMenuPolicy (Qt::ContextMenuPolicy policy)

void	grabMouse ()
	Grabs the mouse input.

void	grabMouse (const QCursor &)

void	releaseMouse ()
	Releases the mouse grab.

void	grabKeyboard ()
	Grabs the keyboard input.

void	releaseKeyboard ()
	Releases the keyboard grab.

int	grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)
	Adds a shortcut to Qt's shortcut system that watches for the given key sequence in the given context.

void	releaseShortcut (int id)
	Removes the shortcut with the given id from Qt's shortcut system.

void	setShortcutEnabled (int id, bool enable=true)
	If enable is true, the shortcut with the given id is enabled; otherwise the shortcut is disabled.

void	setShortcutAutoRepeat (int id, bool enable=true)

bool	updatesEnabled () const

void	setUpdatesEnabled (bool enable)

void	update (int x, int y, int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version updates a rectangle (x, y, w, h) inside the widget.

void	update (const QRect &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version updates a rectangle rect inside the widget.

void	update (const QRegion &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a region rgn inside the widget.

void	repaint (int x, int y, int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a rectangle (x, y, w, h) inside the widget.

void	repaint (const QRect &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a rectangle rect inside the widget.

void	repaint (const QRegion &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version repaints a region rgn inside the widget.

void	stackUnder (QWidget *)
	Places the widget under w in the parent widget's stack.

void	move (int x, int y)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to move(QPoint(x, y)).

void	move (const QPoint &)

void	resize (int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to resize(QSize(w, h)).

void	resize (const QSize &)

void	setGeometry (int x, int y, int w, int h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setGeometry(QRect(x, y, w, h)).

void	setGeometry (const QRect &)

QByteArray	saveGeometry () const

bool	restoreGeometry (const QByteArray &geometry)

void	adjustSize ()
	Adjusts the size of the widget to fit its contents.

bool	isVisible () const

bool	isVisibleTo (const QWidget *) const
	Returns `true` if this widget would become visible if ancestor is shown; otherwise returns `false`.

bool	isHidden () const
	Returns `true` if the widget is hidden, otherwise returns `false`.

bool	isMinimized () const

bool	isMaximized () const

bool	isFullScreen () const

Qt::WindowStates	windowState () const
	Returns the current window state.

void	setWindowState (Qt::WindowStates state)
	Sets the window state to windowState.

void	overrideWindowState (Qt::WindowStates state)

QSizePolicy	sizePolicy () const

void	setSizePolicy (QSizePolicy)

void	setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size policy of the widget to horizontal and vertical, with standard stretch and no height-for-width.

virtual int	heightForWidth (int) const
	Returns the preferred height for this widget, given the width w.

virtual bool	hasHeightForWidth () const

QRegion	visibleRegion () const
	Returns the unobscured region where paint events can occur.

void	setContentsMargins (int left, int top, int right, int bottom)
	Sets the margins around the contents of the widget to have the sizes left, top, right, and bottom.

void	setContentsMargins (const QMargins &margins)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QMargins	contentsMargins () const
	The contentsMargins function returns the widget's contents margins.

QRect	contentsRect () const
	Returns the area inside the widget's margins.

QLayout *	layout () const
	Returns the layout manager that is installed on this widget, or \nullptr if no layout manager is installed.

void	setLayout (QLayout *)
	Sets the layout manager for this widget to layout.

void	updateGeometry ()
	Notifies the layout system that this widget has changed and may need to change geometry.

void	setParent (QWidget *parent)
	Sets the parent of the widget to parent, and resets the window flags.

void	setParent (QWidget *parent, Qt::WindowFlags f)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This function also takes widget flags, f as an argument.

void	scroll (int dx, int dy)
	Scrolls the widget including its children dx pixels to the right and dy downward.

void	scroll (int dx, int dy, const QRect &)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This version only scrolls r and does not move the children of the widget.

QWidget *	focusWidget () const
	Returns the last child of this widget that setFocus had been called on.

QWidget *	nextInFocusChain () const
	Returns the next widget in this widget's focus chain.

QWidget *	previousInFocusChain () const
	The previousInFocusChain function returns the previous widget in this widget's focus chain.

bool	acceptDrops () const

void	setAcceptDrops (bool on)

void	addAction (QAction *action)
	Appends the action action to this widget's list of actions.

void	addActions (const QList< QAction * > &actions)
	Appends the actions actions to this widget's list of actions.

void	insertActions (QAction before, const QList< QAction > &actions)
	Inserts the actions actions to this widget's list of actions, before the action before.

void	insertAction (QAction before, QAction action)
	Inserts the action action to this widget's list of actions, before the action before.

void	removeAction (QAction *action)
	Removes the action action from this widget's list of actions.

QList< QAction * >	actions () const
	Returns the (possibly empty) list of this widget's actions.

QAction *	addAction (const QString &text)

QAction *	addAction (const QIcon &icon, const QString &text)

QAction *	addAction (const QString &text, const QObject receiver, const char member, Qt::ConnectionType type=Qt::AutoConnection)

QAction *	addAction (const QIcon &icon, const QString &text, const QObject receiver, const char member, Qt::ConnectionType type=Qt::AutoConnection)

template<typename... Args, typename = compatible_action_slot_args<Args...>>
QAction *	addAction (const QString &text, Args &&...args)

template<typename... Args, typename = compatible_action_slot_args<Args...>>
QAction *	addAction (const QIcon &icon, const QString &text, Args &&...args)

QWidget *	parentWidget () const
	Returns the parent of this widget, or \nullptr if it does not have any parent widget.

void	setWindowFlags (Qt::WindowFlags type)

Qt::WindowFlags	windowFlags () const
	Window flags are a combination of a type (e.g.

void	setWindowFlag (Qt::WindowType, bool on=true)

void	overrideWindowFlags (Qt::WindowFlags type)
	Sets the window flags for the widget to flags, without telling the window system.

Qt::WindowType	windowType () const
	Returns the window type of this widget.

QWidget *	childAt (int x, int y) const
	Returns the visible child widget at the position ({x}, {y}) in the widget's coordinate system.

QWidget *	childAt (const QPoint &p) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns the visible child widget at point p in the widget's own coordinate system.

void	setAttribute (Qt::WidgetAttribute, bool on=true)
	Sets the attribute attribute on this widget if on is true; otherwise clears the attribute.

bool	testAttribute (Qt::WidgetAttribute) const
	Returns `true` if attribute attribute is set on this widget; otherwise returns `false`.

QPaintEngine *	paintEngine () const override
	Returns the widget's paint engine.

void	ensurePolished () const
	Ensures that the widget and its children have been polished by QStyle (i.e., have a proper font and palette).

bool	isAncestorOf (const QWidget *child) const
	Returns `true` if this widget is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns `false`.

bool	autoFillBackground () const

void	setAutoFillBackground (bool enabled)

QBackingStore *	backingStore () const

QWindow *	windowHandle () const
	If this is a native widget, return the associated QWindow.

QScreen *	screen () const
	Returns the screen the widget is on.

void	setScreen (QScreen *)
	Sets the screen on which the widget should be shown to screen.

Qt::InputMethodHints	inputMethodHints () const

void	setInputMethodHints (Qt::InputMethodHints hints)

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Public Member Functions inherited from QPaintDevice
virtual	~QPaintDevice ()

bool	paintingActive () const

int	width () const

int	height () const

int	widthMM () const

int	heightMM () const

int	logicalDpiX () const

int	logicalDpiY () const

int	physicalDpiX () const

int	physicalDpiY () const

qreal	devicePixelRatio () const

qreal	devicePixelRatioF () const

int	colorCount () const

int	depth () const

Protected Member Functions
void	resizeEvent (QResizeEvent *event) override
	\reimp

void	keyPressEvent (QKeyEvent *event) override
	\reimp

void	keyReleaseEvent (QKeyEvent *event) override
	\reimp

void	focusInEvent (QFocusEvent *event) override
	\reimp

void	focusOutEvent (QFocusEvent *event) override
	\reimp

void	changeEvent (QEvent *event) override
	\reimp

void	closeEvent (QCloseEvent *event) override
	\reimp

void	hideEvent (QHideEvent *event) override
	\reimp

void	mousePressEvent (QMouseEvent *event) override
	\reimp

void	mouseReleaseEvent (QMouseEvent *event) override
	\reimp

void	mouseMoveEvent (QMouseEvent *event) override
	\reimp

void	timerEvent (QTimerEvent *event) override
	\reimp

void	paintEvent (QPaintEvent *event) override
	\reimp

void	showEvent (QShowEvent *event) override
	\reimp

virtual void	initStyleOption (QStyleOptionSpinBox *option) const
	Initialize option with the values from this QSpinBox.

QLineEdit *	lineEdit () const
	This function returns a pointer to the line edit of the spin box.

void	setLineEdit (QLineEdit *edit)
	Sets the line edit of the spinbox to be lineEdit instead of the current line edit widget.

virtual StepEnabled	stepEnabled () const
	Virtual function that determines whether stepping up and down is legal at any given time.

	QAbstractSpinBox (QAbstractSpinBoxPrivate &dd, QWidget *parent=nullptr)

Protected Member Functions inherited from QWidget
bool	event (QEvent *event) override
	This is the main event handler; it handles event event.

virtual void	mouseDoubleClickEvent (QMouseEvent *event)
	This event handler, for event event, can be reimplemented in a subclass to receive mouse double click events for the widget.

virtual void	enterEvent (QEnterEvent *event)
	This event handler can be reimplemented in a subclass to receive widget enter events which are passed in the event parameter.

virtual void	leaveEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive widget leave events which are passed in the event parameter.

virtual void	moveEvent (QMoveEvent *event)
	This event handler can be reimplemented in a subclass to receive widget move events which are passed in the event parameter.

virtual void	contextMenuEvent (QContextMenuEvent *event)
	This event handler, for event event, can be reimplemented in a subclass to receive widget context menu events.

virtual void	actionEvent (QActionEvent *event)
	This event handler is called with the given event whenever the widget's actions are changed.

virtual bool	nativeEvent (const QByteArray &eventType, void message, qintptr result)
	This special event handler can be reimplemented in a subclass to receive native platform events identified by eventType which are passed in the message parameter.

int	metric (PaintDeviceMetric) const override
	Internal implementation of the virtual QPaintDevice::metric() function.

void	initPainter (QPainter *painter) const override
	Initializes the painter pen, background and font to the same as the given widget's.

QPaintDevice *	redirected (QPoint *offset) const override

QPainter *	sharedPainter () const override

virtual void	inputMethodEvent (QInputMethodEvent *)
	This event handler, for event event, can be reimplemented in a subclass to receive Input Method composition events.

void	create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true)
	Creates a new widget window.

void	destroy (bool destroyWindow=true, bool destroySubWindows=true)
	Frees up window system resources.

virtual bool	focusNextPrevChild (bool next)
	Finds a new widget to give the keyboard focus to, as appropriate for Tab and Shift+Tab, and returns `true` if it can find a new widget, or false if it can't.

bool	focusNextChild ()
	Finds a new widget to give the keyboard focus to, as appropriate for \uicontrol Tab, and returns `true` if it can find a new widget, or false if it can't.

bool	focusPreviousChild ()
	Finds a new widget to give the keyboard focus to, as appropriate for \uicontrol Shift+Tab, and returns `true` if it can find a new widget, or false if it can't.

	QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Member Functions inherited from QPaintDevice
	QPaintDevice () noexcept

Properties
bool	wrapping
	whether the spin box is circular.

bool	frame
	whether the spin box draws itself with a frame

Qt::Alignment	alignment
	the alignment of the spin box

bool	readOnly
	whether the spin box is read only.

ButtonSymbols	buttonSymbols
	the current button symbol mode

QString	specialValueText
	the special-value text

QString	text
	the spin box's text, including any prefix and suffix

bool	accelerated
	whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons.

CorrectionMode	correctionMode
	the mode to correct an \l{QValidator::}{Intermediate} value if editing finishes

bool	acceptableInput
	whether the input satisfies the current validation

bool	keyboardTracking
	whether keyboard tracking is enabled for the spinbox.

bool	showGroupSeparator
	whether a thousands separator is enabled. By default this property is false.

Properties inherited from QWidget
bool	modal
	whether the widget is a modal widget

Qt::WindowModality	windowModality
	which windows are blocked by the modal widget

bool	enabled
	whether the widget is enabled

QRect	geometry
	the geometry of the widget relative to its parent and excluding the window frame

QRect	frameGeometry
	geometry of the widget relative to its parent including any window frame

QRect	normalGeometry
	the geometry of the widget as it will appear when shown as a normal (not maximized or full screen) top-level widget

int	x
	the x coordinate of the widget relative to its parent including any window frame

int	y
	the y coordinate of the widget relative to its parent and including any window frame

QPoint	pos
	the position of the widget within its parent widget

QSize	frameSize
	the size of the widget including any window frame

QSize	size
	the size of the widget excluding any window frame

int	width
	the width of the widget excluding any window frame

int	height
	the height of the widget excluding any window frame

QRect	rect
	the internal geometry of the widget excluding any window frame

QRect	childrenRect
	the bounding rectangle of the widget's children

QRegion	childrenRegion
	the combined region occupied by the widget's children

QSizePolicy	sizePolicy
	the default layout behavior of the widget

QSize	minimumSize
	the widget's minimum size

QSize	maximumSize
	the widget's maximum size in pixels

int	minimumWidth
	the widget's minimum width in pixels

int	minimumHeight
	the widget's minimum height in pixels

int	maximumWidth
	the widget's maximum width in pixels

int	maximumHeight
	the widget's maximum height in pixels

QSize	sizeIncrement
	the size increment of the widget

QSize	baseSize
	the base size of the widget

QPalette	palette
	the widget's palette

QFont	font
	the font currently set for the widget

QCursor	cursor
	the cursor shape for this widget

bool	mouseTracking
	whether mouse tracking is enabled for the widget

bool	tabletTracking
	whether tablet tracking is enabled for the widget

bool	isActiveWindow
	whether this widget's window is the active window

Qt::FocusPolicy	focusPolicy
	the way the widget accepts keyboard focus

bool	focus
	whether this widget (or its focus proxy) has the keyboard input focus

Qt::ContextMenuPolicy	contextMenuPolicy
	how the widget shows a context menu

bool	updatesEnabled
	whether updates are enabled

bool	visible
	whether the widget is visible

bool	minimized
	whether this widget is minimized (iconified)

bool	maximized
	whether this widget is maximized

bool	fullScreen
	whether the widget is shown in full screen mode

QSize	sizeHint
	the recommended size for the widget

QSize	minimumSizeHint
	the recommended minimum size for the widget

bool	acceptDrops
	whether drop events are enabled for this widget

QString	windowTitle
	the window title (caption)

QIcon	windowIcon
	the widget's icon

QString	windowIconText
	the text to be displayed on the icon of a minimized window

double	windowOpacity
	The level of opacity for the window.

bool	windowModified
	whether the document shown in the window has unsaved changes

Qt::LayoutDirection	layoutDirection
	the layout direction for this widget.

bool	autoFillBackground
	whether the widget background is filled automatically

QString	styleSheet
	the widget's style sheet

QLocale	locale
	the widget's locale

QString	windowFilePath
	the file path associated with a widget

Qt::InputMethodHints	inputMethodHints
	What input method specific hints the widget has.

Properties inherited from QObject
QString	objectName
	the name of this object

Friends
class	QAccessibleAbstractSpinBox

Additional Inherited Members
Static Public Member Functions inherited from QWidget
static void	setTabOrder (QWidget , QWidget )
	Puts the second widget after the first widget in the focus order.

static void	setTabOrder (std::initializer_list< QWidget * > widgets)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

static QWidget *	mouseGrabber ()
	Returns the widget that is currently grabbing the mouse input.

static QWidget *	keyboardGrabber ()
	Returns the widget that is currently grabbing the keyboard input.

static QWidget *	find (WId)
	Returns a pointer to the widget with window identifier/handle id.

static QWidget *	createWindowContainer (QWindow window, QWidget parent=nullptr, Qt::WindowFlags flags=Qt::WindowFlags())
	Creates a QWidget that makes it possible to embed window into a QWidget-based application.

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Static Public Member Functions inherited from QPaintDevice
static qreal	devicePixelRatioFScale ()

Protected Slots inherited from QWidget
void	updateMicroFocus (Qt::InputMethodQuery query=Qt::ImQueryAll)
	Updates the widget's micro focus and informs input methods that the state specified by query has changed.

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Protected Attributes inherited from QPaintDevice
ushort	painters

Related Symbols inherited from QWidget
	setupUi (QWidget *widget)
	\macro QWIDGETSIZE_MAX

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

The QAbstractSpinBox class provides a spinbox and a line edit to display values.

\inmodule QtWidgets

The class is designed as a common super class for widgets like QSpinBox, QDoubleSpinBox and QDateTimeEdit

Here are the main properties of the class:

\list 1

\l text: The text that is displayed in the QAbstractSpinBox.

\l alignment: The alignment of the text in the QAbstractSpinBox.

\l wrapping: Whether the QAbstractSpinBox wraps from the minimum value to the maximum value and vice versa.

\endlist

QAbstractSpinBox provides a virtual stepBy() function that is called whenever the user triggers a step. This function takes an integer value to signify how many steps were taken. E.g. Pressing Qt::Key_Down will trigger a call to stepBy(-1).

When the user triggers a step whilst holding the Qt::ControlModifier, QAbstractSpinBox steps by 10 instead of making a single step. This step modifier affects wheel events, key events and interaction with the spinbox buttons. Note that on macOS, Control corresponds to the Command key.

Since Qt 5.12, QStyle::SH_SpinBox_StepModifier can be used to select which Qt::KeyboardModifier increases the step rate. Qt::NoModifier disables this feature.

QAbstractSpinBox also provide a virtual function stepEnabled() to determine whether stepping up/down is allowed at any point. This function returns a bitset of StepEnabled.

See also: QAbstractSlider, QSpinBox, QDoubleSpinBox, QDateTimeEdit, {Spin Boxes Example}

Definition at line 20 of file qabstractspinbox.h.

Member Enumeration Documentation

◆ ButtonSymbols

enum QAbstractSpinBox::ButtonSymbols

This enum type describes the symbols that can be displayed on the buttons in a spin box.

\inlineimage qspinbox-updown.png \inlineimage qspinbox-plusminus.png

\value UpDownArrows Little arrows in the classic style. \value PlusMinus {+} and {-} symbols. \value NoButtons Don't display buttons.

See also: QAbstractSpinBox::buttonSymbols

Enumerator
UpDownArrows
PlusMinus
NoButtons

Definition at line 44 of file qabstractspinbox.h.

◆ CorrectionMode

enum QAbstractSpinBox::CorrectionMode

This enum type describes the mode the spinbox will use to correct an \l{QValidator::}{Intermediate} value if editing finishes.

\value CorrectToPreviousValue The spinbox will revert to the last valid value.

\value CorrectToNearestValue The spinbox will revert to the nearest valid value.

See also: correctionMode

Enumerator
CorrectToPreviousValue
CorrectToNearestValue

Definition at line 50 of file qabstractspinbox.h.

◆ StepEnabledFlag

enum QAbstractSpinBox::StepEnabledFlag

\value StepNone \value StepUpEnabled \value StepDownEnabled

Enumerator
StepNone
StepUpEnabled
StepDownEnabled

Definition at line 40 of file qabstractspinbox.h.

◆ StepType

enum QAbstractSpinBox::StepType

\value DefaultStepType \value AdaptiveDecimalStepType

Enumerator
DefaultStepType
AdaptiveDecimalStepType

Definition at line 95 of file qabstractspinbox.h.

Constructor & Destructor Documentation

◆ QAbstractSpinBox() [1/2]

QAbstractSpinBox::QAbstractSpinBox ( QWidget * parent = nullptr )

explicit

Constructs an abstract spinbox with the given parent with default \l wrapping, and \l alignment properties.

Definition at line 116 of file qabstractspinbox.cpp.

◆ ~QAbstractSpinBox()

QAbstractSpinBox::~QAbstractSpinBox ( )

Called when the QAbstractSpinBox is destroyed.

Definition at line 137 of file qabstractspinbox.cpp.

◆ QAbstractSpinBox() [2/2]

QAbstractSpinBox::QAbstractSpinBox	(	QAbstractSpinBoxPrivate &	dd,
		QWidget *	parent = nullptr )

protected

Definition at line 126 of file qabstractspinbox.cpp.

Member Function Documentation

◆ alignment()

Qt::Alignment QAbstractSpinBox::alignment ( ) const

Definition at line 475 of file qabstractspinbox.cpp.

References d.

◆ buttonSymbols()

QAbstractSpinBox::ButtonSymbols QAbstractSpinBox::buttonSymbols ( ) const

Definition at line 171 of file qabstractspinbox.cpp.

References d.

◆ changeEvent()

void QAbstractSpinBox::changeEvent ( QEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 813 of file qabstractspinbox.cpp.

References QEvent::ActivationChange, QWidget::changeEvent(), d, EmitIfChanged, QEvent::EnabledChange, QWidget::isActiveWindow, QWidget::isEnabled(), QEvent::LocaleChange, QStyle::SH_SpinBox_ButtonsInsideFrame, QStyle::SH_SpinBox_ClickAutoRepeatRate, QStyle::SH_SpinBox_ClickAutoRepeatThreshold, QStyle::SH_SpinBox_StepModifier, QWidget::style(), QEvent::StyleChange, and QStyle::styleHint().

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◆ clear

void QAbstractSpinBox::clear ( )

virtualslot

Clears the lineedit of all text but prefix and suffix.

Reimplemented in QDateTimeEdit.

Definition at line 510 of file qabstractspinbox.cpp.

References d.

Referenced by keyPressEvent().

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◆ closeEvent()

void QAbstractSpinBox::closeEvent ( QCloseEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1203 of file qabstractspinbox.cpp.

References QWidget::closeEvent(), d, and EmitIfChanged.

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◆ correctionMode()

QAbstractSpinBox::CorrectionMode QAbstractSpinBox::correctionMode ( ) const

Definition at line 440 of file qabstractspinbox.cpp.

References d.

◆ editingFinished

void QAbstractSpinBox::editingFinished ( )

signal

This signal is emitted editing is finished.

This happens when the spinbox loses focus and when enter is pressed.

Referenced by QInputDialogDoubleSpinBox::QInputDialogDoubleSpinBox(), QInputDialogSpinBox::QInputDialogSpinBox(), event(), focusOutEvent(), keyPressEvent(), and QDateTimeEdit::keyPressEvent().

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◆ event()

bool QAbstractSpinBox::event ( QEvent * event )

overridevirtual

\reimp

Reimplemented from QObject.

Reimplemented in QDateTimeEdit, and QSpinBox.

Definition at line 751 of file qabstractspinbox.cpp.

References QEvent::ApplicationLayoutDirectionChange, d, editingFinished(), emit, QWidget::event(), QEvent::FontChange, QEvent::HoverEnter, QEvent::HoverLeave, QEvent::HoverMove, QEvent::InputMethod, QEvent::LayoutDirectionChange, position(), QEvent::ShortcutOverride, and QEvent::StyleChange.

Referenced by QDateTimeEdit::event(), and QSpinBox::event().

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◆ fixup()

void QAbstractSpinBox::fixup ( QString & input ) const

virtual

This virtual function is called by the QAbstractSpinBox if the input is not validated to QValidator::Acceptable when Return is pressed or interpretText() is called.

It will try to change the text so it is valid. Reimplemented in the various subclasses.

Reimplemented in QDateTimeEdit, QSpinBox, and QDoubleSpinBox.

Definition at line 573 of file qabstractspinbox.cpp.

Referenced by QSpinBoxValidator::fixup().

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◆ focusInEvent()

void QAbstractSpinBox::focusInEvent ( QFocusEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Reimplemented in QDateTimeEdit.

Definition at line 1165 of file qabstractspinbox.cpp.

References Qt::BacktabFocusReason, d, QWidget::focusInEvent(), selectAll(), and Qt::TabFocusReason.

Referenced by QDateTimeEdit::focusInEvent().

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◆ focusOutEvent()

void QAbstractSpinBox::focusOutEvent ( QFocusEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1180 of file qabstractspinbox.cpp.

References d, editingFinished(), emit, EmitIfChanged, and QWidget::focusOutEvent().

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◆ hasAcceptableInput()

bool QAbstractSpinBox::hasAcceptableInput ( ) const

Definition at line 455 of file qabstractspinbox.cpp.

References d.

Referenced by QWizardPage::isComplete(), QInputDialogSpinBox::keyPressEvent(), QInputDialogDoubleSpinBox::keyPressEvent(), and QInputDialogPrivate::setInputWidget().

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◆ hasFrame()

bool QAbstractSpinBox::hasFrame ( ) const

Definition at line 348 of file qabstractspinbox.cpp.

References d.

◆ hideEvent()

void QAbstractSpinBox::hideEvent ( QHideEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1217 of file qabstractspinbox.cpp.

References d, EmitIfChanged, and QWidget::hideEvent().

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◆ initStyleOption()

void QAbstractSpinBox::initStyleOption ( QStyleOptionSpinBox * option ) const

protectedvirtual

Initialize option with the values from this QSpinBox.

This method is useful for subclasses when they need a QStyleOptionSpinBox, but don't want to fill in all the information themselves.

See also: QStyleOption::initFrom()

Reimplemented in QDateTimeEdit.

Definition at line 1670 of file qabstractspinbox.cpp.

References d, Down, NoButtons, QStyle::SC_None, QStyle::SC_SpinBoxDown, QStyle::SC_SpinBoxEditField, QStyle::SC_SpinBoxFrame, QStyle::SC_SpinBoxUp, QStyle::SH_SpinBox_ButtonsInsideFrame, QStyle::SH_SpinControls_DisableOnBounds, QStyle::State_Sunken, StepDownEnabled, stepEnabled(), StepUpEnabled, QWidget::style(), QStyle::styleHint(), and Up.

Referenced by QDateTimeEdit::initStyleOption(), minimumSizeHint(), paintEvent(), and sizeHint().

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◆ inputMethodQuery()

QVariant QAbstractSpinBox::inputMethodQuery ( Qt::InputMethodQuery query ) const

overridevirtual

\reimp

Reimplemented from QWidget.

Definition at line 732 of file qabstractspinbox.cpp.

References d, Qt::ImHints, and QWidget::inputMethodHints.

◆ interpretText()

void QAbstractSpinBox::interpretText ( )

This function interprets the text of the spin box.

If the value has changed since last interpretation it will emit signals.

Definition at line 720 of file qabstractspinbox.cpp.

References d, and EmitIfChanged.

Referenced by SpinBoxDelegate::setModelData().

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◆ isAccelerated()

bool QAbstractSpinBox::isAccelerated ( ) const

Definition at line 379 of file qabstractspinbox.cpp.

References d.

◆ isGroupSeparatorShown()

bool QAbstractSpinBox::isGroupSeparatorShown ( ) const

Definition at line 393 of file qabstractspinbox.cpp.

References d.

Referenced by QSpinBox::fixup().

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◆ isReadOnly()

bool QAbstractSpinBox::isReadOnly ( ) const

Definition at line 292 of file qabstractspinbox.cpp.

References d.

Referenced by keyPressEvent().

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◆ keyboardTracking()

bool QAbstractSpinBox::keyboardTracking ( ) const

Definition at line 328 of file qabstractspinbox.cpp.

References d.

◆ keyPressEvent()

void QAbstractSpinBox::keyPressEvent ( QKeyEvent * event )

overrideprotectedvirtual

\reimp

This function handles keyboard input.

The following keys are handled specifically: \table \row

Enter/Return
This will reinterpret the text and emit a signal even if the value has not changed since last time a signal was emitted. \row
Up
This will invoke stepBy(1) \row
Down
This will invoke stepBy(-1) \row
Page up
This will invoke stepBy(10) \row
Page down
This will invoke stepBy(-10) \endtable

See also: stepBy()

Reimplemented from QWidget.

Reimplemented in QInputDialogSpinBox, QInputDialogDoubleSpinBox, and QDateTimeEdit.

Definition at line 977 of file qabstractspinbox.cpp.

References AlwaysEmit, clear(), Qt::ControlModifier, d, Down, editingFinished(), emit, EmitIfChanged, isReadOnly(), QWidget::isVisible(), Qt::Key_Back, Qt::Key_Down, Qt::Key_End, Qt::Key_Enter, Qt::Key_Home, Qt::Key_Left, Qt::Key_PageDown, Qt::Key_PageUp, Qt::Key_Return, Qt::Key_Right, Qt::Key_Select, Qt::Key_U, Qt::Key_Up, Keyboard, QGuiApplication::platformName, Q_FALLTHROUGH, QKeySequence::SelectAll, selectAll(), QStyle::SH_SpinBox_AnimateButton, Qt::ShiftModifier, QString::size(), stepBy(), StepDownEnabled, stepEnabled(), StepUpEnabled, QWidget::style(), QStyle::styleHint(), text, and Up.

Referenced by QDateTimeEdit::keyPressEvent().

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◆ keyReleaseEvent()

void QAbstractSpinBox::keyReleaseEvent ( QKeyEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1119 of file qabstractspinbox.cpp.

References d, and Keyboard.

◆ lineEdit()

QLineEdit * QAbstractSpinBox::lineEdit ( ) const

protected

This function returns a pointer to the line edit of the spin box.

Definition at line 649 of file qabstractspinbox.cpp.

References d.

Referenced by QInputDialogDoubleSpinBox::QInputDialogDoubleSpinBox(), QInputDialogSpinBox::QInputDialogSpinBox(), setLineEdit(), and text().

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◆ minimumSizeHint()

QSize QAbstractSpinBox::minimumSizeHint ( ) const

overridevirtual

\reimp

Reimplemented from QWidget.

Definition at line 904 of file qabstractspinbox.cpp.

References QStyle::CT_SpinBox, d, QWidget::ensurePolished(), QWidget::fontMetrics(), hint(), initStyleOption(), opt, qMax(), QStyle::sizeFromContents(), QWidget::style(), and QString::truncate().

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◆ mouseMoveEvent()

void QAbstractSpinBox::mouseMoveEvent ( QMouseEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1329 of file qabstractspinbox.cpp.

References d, NoButtons, QStyle::SC_SpinBoxDown, QStyle::SC_SpinBoxUp, StepDownEnabled, stepEnabled(), and StepUpEnabled.

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◆ mousePressEvent()

void QAbstractSpinBox::mousePressEvent ( QMouseEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Reimplemented in QInputDialogSpinBox, QInputDialogDoubleSpinBox, and QDateTimeEdit.

Definition at line 1353 of file qabstractspinbox.cpp.

References d, Qt::LeftButton, NoButtons, None, QStyle::SC_SpinBoxDown, QStyle::SC_SpinBoxUp, StepDownEnabled, stepEnabled(), StepNone, and StepUpEnabled.

Referenced by QDateTimeEdit::mousePressEvent().

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◆ mouseReleaseEvent()

void QAbstractSpinBox::mouseReleaseEvent ( QMouseEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 1378 of file qabstractspinbox.cpp.

References d, and Mouse.

◆ paintEvent()

void QAbstractSpinBox::paintEvent ( QPaintEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Reimplemented in QDateTimeEdit.

Definition at line 945 of file qabstractspinbox.cpp.

References QStyle::CC_SpinBox, initStyleOption(), and opt.

Referenced by QDateTimeEdit::paintEvent().

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◆ resizeEvent()

void QAbstractSpinBox::resizeEvent ( QResizeEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 853 of file qabstractspinbox.cpp.

References d, QWidget::resizeEvent(), and QWidget::update().

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◆ selectAll

void QAbstractSpinBox::selectAll ( )

slot

Selects all the text in the spinbox except the prefix and suffix.

Definition at line 493 of file qabstractspinbox.cpp.

References d.

Referenced by QCalendarWidgetPrivate::_q_yearClicked(), focusInEvent(), keyPressEvent(), QDateTimeEdit::keyPressEvent(), and stepBy().

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◆ setAccelerated()

void QAbstractSpinBox::setAccelerated ( bool on )

Definition at line 373 of file qabstractspinbox.cpp.

References d.

◆ setAlignment()

void QAbstractSpinBox::setAlignment ( Qt::Alignment flag )

Definition at line 482 of file qabstractspinbox.cpp.

References d.

◆ setButtonSymbols()

void QAbstractSpinBox::setButtonSymbols ( ButtonSymbols bs )

Definition at line 177 of file qabstractspinbox.cpp.

References buttonSymbols, d, QWidget::update(), and QWidget::updateGeometry().

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◆ setCorrectionMode()

void QAbstractSpinBox::setCorrectionMode ( CorrectionMode cm )

Definition at line 434 of file qabstractspinbox.cpp.

References correctionMode, and d.

◆ setFrame()

void QAbstractSpinBox::setFrame ( bool enable )

Definition at line 355 of file qabstractspinbox.cpp.

References d, and QWidget::update().

Referenced by QCalendarWidgetPrivate::createNavigationBar().

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◆ setGroupSeparatorShown()

void QAbstractSpinBox::setGroupSeparatorShown ( bool shown )

Definition at line 399 of file qabstractspinbox.cpp.

References d, EmitIfChanged, and QWidget::updateGeometry().

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◆ setKeyboardTracking()

void QAbstractSpinBox::setKeyboardTracking ( bool kt )

Definition at line 334 of file qabstractspinbox.cpp.

References d.

◆ setLineEdit()

void QAbstractSpinBox::setLineEdit ( QLineEdit * lineEdit )

protected

Sets the line edit of the spinbox to be lineEdit instead of the current line edit widget.

lineEdit cannot be \nullptr.

QAbstractSpinBox takes ownership of the new lineEdit

If QLineEdit::validator() for the lineEdit returns \nullptr, the internal validator of the spinbox will be set on the line edit.

Definition at line 669 of file qabstractspinbox.cpp.

References QObject::connect(), QObjectPrivate::connect(), QLineEdit::cursorPositionChanged(), d, QAbstractSpinBoxPrivate::editorCursorPositionChanged(), QAbstractSpinBoxPrivate::editorTextChanged(), QWidget::isVisible(), lineEdit(), Qt::NoContextMenu, Q_ASSERT, setProperty, QStyle::SH_SpinBox_ButtonsInsideFrame, QWidget::style(), QLineEdit::textChanged(), QMetaType::UnknownType, and QWidgetLineControl::updateMicroFocus().

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◆ setReadOnly()

void QAbstractSpinBox::setReadOnly ( bool r )

Definition at line 298 of file qabstractspinbox.cpp.

References d, QEvent::ReadOnlyChange, QCoreApplication::sendEvent(), and QWidget::update().

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◆ setSpecialValueText()

void QAbstractSpinBox::setSpecialValueText ( const QString & txt )

Definition at line 241 of file qabstractspinbox.cpp.

References d, and specialValueText.

◆ setWrapping()

void QAbstractSpinBox::setWrapping ( bool w )

Definition at line 271 of file qabstractspinbox.cpp.

References d, and wrapping.

◆ showEvent()

void QAbstractSpinBox::showEvent ( QShowEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QWidget.

Definition at line 797 of file qabstractspinbox.cpp.

References d.

◆ sizeHint()

QSize QAbstractSpinBox::sizeHint ( ) const

overridevirtual

\reimp

Reimplemented from QWidget.

Reimplemented in QDateTimeEdit.

Definition at line 866 of file qabstractspinbox.cpp.

References QStyle::CT_SpinBox, d, QWidget::ensurePolished(), QWidget::fontMetrics(), hint(), initStyleOption(), opt, qMax(), QStyle::sizeFromContents(), QWidget::style(), and QString::truncate().

Referenced by QCalendarWidgetPrivate::_q_yearClicked().

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◆ specialValueText()

QString QAbstractSpinBox::specialValueText ( ) const

Definition at line 235 of file qabstractspinbox.cpp.

References d.

◆ stepBy()

void QAbstractSpinBox::stepBy ( int steps )

virtual

Virtual function that is called whenever the user triggers a step.

The steps parameter indicates how many steps were taken. For example, pressing Qt::Key_Down will trigger a call to stepBy(-1), whereas pressing Qt::Key_PageUp will trigger a call to stepBy(10).

If you subclass QAbstractSpinBox you must reimplement this function. Note that this function is called even if the resulting value will be outside the bounds of minimum and maximum. It's this function's job to handle these situations.

See also: stepUp(), stepDown(), keyPressEvent()

Reimplemented in QDateTimeEdit.

Definition at line 612 of file qabstractspinbox.cpp.

References QValidator::Acceptable, AdaptiveDecimalStepType, AlwaysEmit, d, EmitIfChanged, NeverEmit, selectAll(), QVariant::setValue(), QStyle::SH_SpinBox_SelectOnStep, QWidget::style(), validate(), and QVariant::value().

Referenced by keyPressEvent(), stepDown(), stepUp(), and timerEvent().

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◆ stepDown

void QAbstractSpinBox::stepDown ( )

slot

Steps down by one linestep Calling this slot is analogous to calling stepBy(-1);.

See also: stepBy(), stepUp()

Definition at line 594 of file qabstractspinbox.cpp.

References stepBy().

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◆ stepEnabled()

QAbstractSpinBox::StepEnabled QAbstractSpinBox::stepEnabled ( ) const

protectedvirtual

Virtual function that determines whether stepping up and down is legal at any given time.

The up arrow will be painted as disabled unless (stepEnabled() & StepUpEnabled) != 0.

The default implementation will return (StepUpEnabled| StepDownEnabled) if wrapping is turned on. Else it will return StepDownEnabled if value is > minimum() or'ed with StepUpEnabled if value < maximum().

If you subclass QAbstractSpinBox you will need to reimplement this function.

See also: QSpinBox::minimum(), QSpinBox::maximum(), wrapping()

Reimplemented in QDateTimeEdit.

Definition at line 537 of file qabstractspinbox.cpp.

References d, ret, StepDownEnabled, StepNone, StepUpEnabled, QMetaType::UnknownType, and QAbstractSpinBoxPrivate::variantCompare().

Referenced by initStyleOption(), keyPressEvent(), mouseMoveEvent(), mousePressEvent(), timerEvent(), QQC2::QStyleHelper::uniqueName(), and QStyleHelper::uniqueName().

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◆ stepUp

void QAbstractSpinBox::stepUp ( )

slot

Steps up by one linestep Calling this slot is analogous to calling stepBy(1);.

See also: stepBy(), stepDown()

Definition at line 583 of file qabstractspinbox.cpp.

References stepBy().

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◆ text()

QString QAbstractSpinBox::text ( ) const

Definition at line 196 of file qabstractspinbox.cpp.

References QLineEdit::displayText, and lineEdit().

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◆ timerEvent()

void QAbstractSpinBox::timerEvent ( QTimerEvent * event )

overrideprotectedvirtual

\reimp

Reimplemented from QObject.

Definition at line 1231 of file qabstractspinbox.cpp.

References d, Down, Keyboard, QObject::killTimer(), QObject::startTimer(), stepBy(), StepDownEnabled, stepEnabled(), StepUpEnabled, QGuiApplication::styleHints(), QObject::timerEvent(), and Up.

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◆ validate()

QValidator::State QAbstractSpinBox::validate	(	QString &	input,
		int &	pos ) const

virtual

This virtual function is called by the QAbstractSpinBox to determine whether input is valid.

The pos parameter indicates the position in the string. Reimplemented in the various subclasses.

Reimplemented in QDateTimeEdit, QSpinBox, QDoubleSpinBox, and QPdfPageSelectorSpinBox.

Definition at line 561 of file qabstractspinbox.cpp.

References QValidator::Acceptable.

Referenced by stepBy(), and QSpinBoxValidator::validate().

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◆ wrapping()

bool QAbstractSpinBox::wrapping ( ) const

Definition at line 265 of file qabstractspinbox.cpp.

References d.

Friends And Related Symbol Documentation

◆ QAccessibleAbstractSpinBox

friend class QAccessibleAbstractSpinBox

friend

Definition at line 141 of file qabstractspinbox.h.

Property Documentation

◆ accelerated

QAbstractSpinBox::accelerated

readwrite

whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons.

Since: 4.2

If enabled the spin box will increase/decrease the value faster the longer you hold the button down.

Definition at line 31 of file qabstractspinbox.h.

◆ acceptableInput

QAbstractSpinBox::acceptableInput

read

whether the input satisfies the current validation

Since: 4.2

See also: validate(), fixup(), correctionMode

Definition at line 33 of file qabstractspinbox.h.

◆ alignment

QAbstractSpinBox::alignment

readwrite

the alignment of the spin box

Possible Values are Qt::AlignLeft, Qt::AlignRight, and Qt::AlignHCenter.

By default, the alignment is Qt::AlignLeft

Attempting to set the alignment to an illegal flag combination does nothing.

See also: Qt::Alignment

Definition at line 26 of file qabstractspinbox.h.

◆ buttonSymbols

QAbstractSpinBox::buttonSymbols

readwrite

the current button symbol mode

The possible values can be either UpDownArrows or PlusMinus. The default is UpDownArrows.

Note that some styles might render PlusMinus and UpDownArrows identically.

See also: ButtonSymbols

Definition at line 28 of file qabstractspinbox.h.

Referenced by setButtonSymbols(), QQC2::QStyleHelper::uniqueName(), and QStyleHelper::uniqueName().

◆ correctionMode

QAbstractSpinBox::correctionMode

readwrite

the mode to correct an \l{QValidator::}{Intermediate} value if editing finishes

Since: 4.2

The default mode is QAbstractSpinBox::CorrectToPreviousValue.

See also: acceptableInput, validate(), fixup()

Definition at line 32 of file qabstractspinbox.h.

Referenced by setCorrectionMode().

◆ frame

QAbstractSpinBox::frame

readwrite

whether the spin box draws itself with a frame

If enabled (the default) the spin box draws itself inside a frame, otherwise the spin box draws itself without any frame.

Definition at line 25 of file qabstractspinbox.h.

Referenced by QQC2::QStyleHelper::uniqueName(), and QStyleHelper::uniqueName().

◆ keyboardTracking

QAbstractSpinBox::keyboardTracking

readwrite

whether keyboard tracking is enabled for the spinbox.

Since: 4.3

If keyboard tracking is enabled (the default), the spinbox emits the valueChanged() and textChanged() signals while the new value is being entered from the keyboard.

E.g. when the user enters the value 600 by typing 6, 0, and 0, the spinbox emits 3 signals with the values 6, 60, and 600 respectively.

If keyboard tracking is disabled, the spinbox doesn't emit the valueChanged() and textChanged() signals while typing. It emits the signals later, when the return key is pressed, when keyboard focus is lost, or when other spinbox functionality is used, e.g. pressing an arrow key.

Definition at line 34 of file qabstractspinbox.h.

◆ readOnly

QAbstractSpinBox::readOnly

readwrite

whether the spin box is read only.

In read-only mode, the user can still copy the text to the clipboard, or drag and drop the text; but cannot edit it.

The QLineEdit in the QAbstractSpinBox does not show a cursor in read-only mode.

See also: QLineEdit::readOnly

Definition at line 27 of file qabstractspinbox.h.

◆ showGroupSeparator

QAbstractSpinBox::showGroupSeparator

readwrite

whether a thousands separator is enabled. By default this property is false.

Since: 5.3

Definition at line 35 of file qabstractspinbox.h.

◆ specialValueText

QAbstractSpinBox::specialValueText

readwrite

the special-value text

If set, the spin box will display this text instead of a numeric value whenever the current value is equal to minimum(). Typical use is to indicate that this choice has a special (default) meaning.

For example, if your spin box allows the user to choose a scale factor (or zoom level) for displaying an image, and your application is able to automatically choose one that will enable the image to fit completely within the display window, you can set up the spin box like this:

The user will then be able to choose a scale from 1% to 1000% or select "Auto" to leave it up to the application to choose. Your code must then interpret the spin box value of 0 as a request from the user to scale the image to fit inside the window.

All values are displayed with the prefix and suffix (if set), except for the special value, which only shows the special value text. This special text is passed in the QSpinBox::textChanged() signal that passes a QString.

To turn off the special-value text display, call this function with an empty string. The default is no special-value text, i.e. the numeric value is shown as usual.

If no special-value text is set, specialValueText() returns an empty string.

Definition at line 29 of file qabstractspinbox.h.

Referenced by setSpecialValueText().

◆ text

QAbstractSpinBox::text

read

the spin box's text, including any prefix and suffix

There is no default text.

Definition at line 30 of file qabstractspinbox.h.

Referenced by QCalendarWidgetPrivate::_q_yearEditingFinished(), QDateTimeEdit::dateTimeFromText(), keyPressEvent(), QCalendarWidgetPrivate::updateNavigationBar(), QDateTimeEdit::validate(), QSpinBox::validate(), QDoubleSpinBox::validate(), QPdfPageSelectorSpinBox::validate(), QSpinBox::valueFromText(), QDoubleSpinBox::valueFromText(), and QPdfPageSelectorSpinBox::valueFromText().

◆ wrapping

QAbstractSpinBox::wrapping

readwrite

whether the spin box is circular.

If wrapping is true stepping up from maximum() value will take you to the minimum() value and vice versa. Wrapping only make sense if you have minimum() and maximum() values set.

QSpinBox *spinBox = new QSpinBox(this);
spinBox->setRange(0, 100);
spinBox->setWrapping(true);
spinBox->setValue(100);
spinBox->stepBy(1);
// value is 0

See also: QSpinBox::minimum(), QSpinBox::maximum()

Definition at line 24 of file qabstractspinbox.h.

Referenced by setWrapping().

The documentation for this class was generated from the following files:

qtbase/src/widgets/widgets/qabstractspinbox.h (e0b09e86d83f1c6ea13b28bb2a0d627c419e46f8)
qtbase/src/widgets/widgets/qabstractspinbox.cpp (c26994ff1551aa5450383cc51bed9b4d39f973f7)

Public Types

Public Slots

Signals

Public Member Functions

Protected Member Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ ButtonSymbols

◆ CorrectionMode

◆ StepEnabledFlag

◆ StepType

Constructor & Destructor Documentation

◆ QAbstractSpinBox() [1/2]

◆ ~QAbstractSpinBox()

◆ QAbstractSpinBox() [2/2]

Member Function Documentation

◆ alignment()

◆ buttonSymbols()

◆ changeEvent()

◆ clear

◆ closeEvent()

◆ correctionMode()

◆ editingFinished

◆ event()

◆ fixup()

◆ focusInEvent()

◆ focusOutEvent()

◆ hasAcceptableInput()

◆ hasFrame()

◆ hideEvent()

◆ initStyleOption()

◆ inputMethodQuery()

◆ interpretText()

◆ isAccelerated()

◆ isGroupSeparatorShown()

◆ isReadOnly()

◆ keyboardTracking()

◆ keyPressEvent()

◆ keyReleaseEvent()

◆ lineEdit()

◆ minimumSizeHint()

◆ mouseMoveEvent()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ paintEvent()

◆ resizeEvent()

◆ selectAll

◆ setAccelerated()

◆ setAlignment()

◆ setButtonSymbols()

◆ setCorrectionMode()

◆ setFrame()

◆ setGroupSeparatorShown()

◆ setKeyboardTracking()

◆ setLineEdit()

◆ setReadOnly()

◆ setSpecialValueText()

◆ setWrapping()

◆ showEvent()

◆ sizeHint()

◆ specialValueText()

◆ stepBy()

◆ stepDown

◆ stepEnabled()

◆ stepUp

◆ text()

◆ timerEvent()

◆ validate()

◆ wrapping()

Friends And Related Symbol Documentation

◆ QAccessibleAbstractSpinBox

Property Documentation

◆ accelerated

◆ acceptableInput

◆ alignment

◆ buttonSymbols

◆ correctionMode