#include <qquicklayout_p.h>

Inheritance diagram for QQuickLayoutAttached:

Collaboration diagram for QQuickLayoutAttached:

Signals
void	minimumWidthChanged ()

void	minimumHeightChanged ()

void	preferredWidthChanged ()

void	preferredHeightChanged ()

void	maximumWidthChanged ()

void	maximumHeightChanged ()

void	fillWidthChanged ()

void	fillHeightChanged ()

void	leftMarginChanged ()

void	topMarginChanged ()

void	rightMarginChanged ()

void	bottomMarginChanged ()

void	marginsChanged ()

void	rowChanged ()

void	columnChanged ()

void	rowSpanChanged ()

void	columnSpanChanged ()

void	alignmentChanged ()

void	horizontalStretchFactorChanged ()

void	verticalStretchFactorChanged ()

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
	QQuickLayoutAttached (QObject *object)
	Provides attached properties for items pushed onto a \l GridLayout, \l RowLayout or \l ColumnLayout.

qreal	minimumWidth () const

void	setMinimumWidth (qreal width)
	\qmlattachedproperty real Layout::minimumWidth

bool	isMinimumWidthSet () const

qreal	minimumHeight () const

void	setMinimumHeight (qreal height)
	\qmlattachedproperty real Layout::minimumHeight

bool	isMinimumHeightSet () const

qreal	preferredWidth () const

void	setPreferredWidth (qreal width)
	\qmlattachedproperty real Layout::preferredWidth

bool	isPreferredWidthSet () const

qreal	preferredHeight () const

void	setPreferredHeight (qreal width)
	\qmlattachedproperty real Layout::preferredHeight

bool	isPreferredHeightSet () const

qreal	maximumWidth () const

void	setMaximumWidth (qreal width)
	\qmlattachedproperty real Layout::maximumWidth

bool	isMaximumWidthSet () const

qreal	maximumHeight () const

void	setMaximumHeight (qreal height)
	\qmlattachedproperty real Layout::maximumHeight

bool	isMaximumHeightSet () const

void	setMinimumImplicitSize (const QSizeF &sz)

void	setMaximumImplicitSize (const QSizeF &sz)

bool	fillWidth () const

void	setFillWidth (bool fill)
	\qmlattachedproperty bool Layout::fillWidth

bool	isFillWidthSet () const

bool	fillHeight () const

void	setFillHeight (bool fill)
	\qmlattachedproperty bool Layout::fillHeight

bool	isFillHeightSet () const

int	row () const

void	setRow (int row)
	\qmlattachedproperty int Layout::row

bool	isRowSet () const

int	column () const

void	setColumn (int column)
	\qmlattachedproperty int Layout::column

bool	isColumnSet () const

int	rowSpan () const

void	setRowSpan (int span)
	\qmlattachedproperty int Layout::rowSpan

int	columnSpan () const

void	setColumnSpan (int span)
	\qmlattachedproperty int Layout::columnSpan

Qt::Alignment	alignment () const

void	setAlignment (Qt::Alignment align)
	\qmlattachedproperty Qt.Alignment Layout::alignment

bool	isAlignmentSet () const

int	horizontalStretchFactor () const

void	setHorizontalStretchFactor (int stretchFactor)
	\qmlattachedproperty int Layout::horizontalStretchFactor

bool	isHorizontalStretchFactorSet () const

int	verticalStretchFactor () const

void	setVerticalStretchFactor (int stretchFactor)
	\qmlattachedproperty int Layout::verticalStretchFactor

bool	isVerticalStretchFactorSet () const

qreal	margins () const

void	setMargins (qreal m)
	\qmlattachedproperty real Layout::margins

bool	isMarginsSet () const

qreal	leftMargin () const

void	setLeftMargin (qreal m)
	\qmlattachedproperty real Layout::leftMargin

void	resetLeftMargin ()

bool	isLeftMarginSet () const

qreal	topMargin () const

void	setTopMargin (qreal m)
	\qmlattachedproperty real Layout::topMargin

void	resetTopMargin ()

bool	isTopMarginSet () const

qreal	rightMargin () const

void	setRightMargin (qreal m)
	\qmlattachedproperty real Layout::rightMargin

void	resetRightMargin ()

bool	isRightMarginSet () const

qreal	bottomMargin () const

void	setBottomMargin (qreal m)
	\qmlattachedproperty real Layout::bottomMargin

void	resetBottomMargin ()

bool	isBottomMarginSet () const

QMarginsF	qMargins () const

QMarginsF	effectiveQMargins () const

bool	setChangesNotificationEnabled (bool enabled)

qreal	sizeHint (Qt::SizeHint which, Qt::Orientation orientation) const

bool	isExtentExplicitlySet (Qt::Orientation o, Qt::SizeHint whichSize) const

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	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

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.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

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::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

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

template<typename T >
T	findChild (const QString &aName=QString(), 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 (const QString &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 >
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`.

Properties
qreal	minimumWidth

qreal	minimumHeight

qreal	preferredWidth

qreal	preferredHeight

qreal	maximumWidth

qreal	maximumHeight

bool	fillHeight

bool	fillWidth

int	row

int	column

int	rowSpan

int	columnSpan

Qt::Alignment	alignment

int	horizontalStretchFactor

int	verticalStretchFactor

qreal	margins

qreal	leftMargin

qreal	topMargin

qreal	rightMargin

qreal	bottomMargin

Properties inherited from QObject
QString	objectName
	the name of this object

Friends
class	QQuickLayout

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

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)

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	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

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 Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

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

Definition at line 159 of file qquicklayout_p.h.

Constructor & Destructor Documentation

◆ QQuickLayoutAttached()

QT_BEGIN_NAMESPACE QQuickLayoutAttached::QQuickLayoutAttached ( QObject * parent )

Provides attached properties for items pushed onto a \l GridLayout, \l RowLayout or \l ColumnLayout.

\qmltype Layout

! \instantiates QQuickLayoutAttached \inqmlmodule QtQuick.Layouts

An object of type Layout is attached to children of the layout to provide layout specific information about the item. The properties of the attached object influence how the layout will arrange the items.

For instance, you can specify \l minimumWidth, \l preferredWidth, and \l maximumWidth if the default values are not satisfactory.

When a layout is resized, items may grow or shrink. Due to this, items have a \l{Layout::minimumWidth}{minimum size}, \l{Layout::preferredWidth}{preferred size} and a \l{Layout::maximumWidth}{maximum size}.

If minimum size has not been explicitly specified on an item, the size is set to 0. If maximum size has not been explicitly specified on an item, the size is set to Number.POSITIVE_INFINITY.

For layouts, the implicit minimum and maximum sizes depend on the content of the layouts.

The \l fillWidth and \l fillHeight properties can either be true or false. If they are false, the item's size will be fixed to its preferred size. Otherwise, it will grow or shrink between its minimum and maximum size as the layout is resized. If there are multiple items with \l fillWidth (or \l fillHeight) set to true, the layout will grow or shrink the items relative to the ratio of their preferred size.

For more details on the layout algorithm, see also the \l {Qt Quick Layouts Overview}.

Note: Do not bind to the x, y, width, or height properties of items in a layout, as this would conflict with the goals of Layout, and can also cause binding loops. The width and height properties are used by the layout engine to store the current size of items as calculated from the minimum/preferred/maximum attached properties, and can be ovewritten each time the items are laid out. Use \l {Layout::preferredWidth}{Layout.preferredWidth} and \l {Layout::preferredHeight}{Layout.preferredHeight}, or \l {Item::}{implicitWidth} and \l {Item::}{implicitHeight} to specify the preferred size of items.

See also: GridLayout; RowLayout; ColumnLayout

Definition at line 64 of file qquicklayout.cpp.

Member Function Documentation

◆ alignment()

Qt::Alignment QQuickLayoutAttached::alignment ( ) const

inline

Definition at line 234 of file qquicklayout_p.h.

◆ alignmentChanged

void QQuickLayoutAttached::alignmentChanged ( )

signal

Referenced by setAlignment().

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◆ bottomMargin()

qreal QQuickLayoutAttached::bottomMargin ( ) const

inline

Definition at line 264 of file qquicklayout_p.h.

◆ bottomMarginChanged

void QQuickLayoutAttached::bottomMarginChanged ( )

signal

Referenced by resetBottomMargin(), setBottomMargin(), and setMargins().

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◆ column()

int QQuickLayoutAttached::column ( ) const

inline

Definition at line 225 of file qquicklayout_p.h.

References qMax().

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◆ columnChanged

void QQuickLayoutAttached::columnChanged ( )

signal

Referenced by setColumn().

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◆ columnSpan()

int QQuickLayoutAttached::columnSpan ( ) const

inline

Definition at line 231 of file qquicklayout_p.h.

◆ columnSpanChanged

void QQuickLayoutAttached::columnSpanChanged ( )

signal

Referenced by setColumnSpan().

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◆ effectiveQMargins()

QMarginsF QQuickLayoutAttached::effectiveQMargins ( ) const

inline

Definition at line 273 of file qquicklayout_p.h.

◆ fillHeight()

bool QQuickLayoutAttached::fillHeight ( ) const

inline

Definition at line 218 of file qquicklayout_p.h.

◆ fillHeightChanged

void QQuickLayoutAttached::fillHeightChanged ( )

signal

Referenced by setFillHeight().

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◆ fillWidth()

bool QQuickLayoutAttached::fillWidth ( ) const

inline

Definition at line 214 of file qquicklayout_p.h.

◆ fillWidthChanged

void QQuickLayoutAttached::fillWidthChanged ( )

signal

Referenced by setFillWidth().

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◆ horizontalStretchFactor()

int QQuickLayoutAttached::horizontalStretchFactor ( ) const

inline

Definition at line 238 of file qquicklayout_p.h.

◆ horizontalStretchFactorChanged

void QQuickLayoutAttached::horizontalStretchFactorChanged ( )

signal

Referenced by setHorizontalStretchFactor().

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◆ isAlignmentSet()

bool QQuickLayoutAttached::isAlignmentSet ( ) const

inline

Definition at line 236 of file qquicklayout_p.h.

◆ isBottomMarginSet()

bool QQuickLayoutAttached::isBottomMarginSet ( ) const

inline

Definition at line 267 of file qquicklayout_p.h.

◆ isColumnSet()

bool QQuickLayoutAttached::isColumnSet ( ) const

inline

Definition at line 227 of file qquicklayout_p.h.

◆ isExtentExplicitlySet()

bool QQuickLayoutAttached::isExtentExplicitlySet	(	Qt::Orientation	o,
		Qt::SizeHint	whichSize
	)		const

inline

Definition at line 290 of file qquicklayout_p.h.

References Qt::Horizontal, Qt::MaximumSize, Qt::MinimumDescent, Qt::MinimumSize, Qt::NSizeHints, o, and Qt::PreferredSize.

◆ isFillHeightSet()

bool QQuickLayoutAttached::isFillHeightSet ( ) const

inline

Definition at line 220 of file qquicklayout_p.h.

◆ isFillWidthSet()

bool QQuickLayoutAttached::isFillWidthSet ( ) const

inline

Definition at line 216 of file qquicklayout_p.h.

◆ isHorizontalStretchFactorSet()

bool QQuickLayoutAttached::isHorizontalStretchFactorSet ( ) const

inline

Definition at line 240 of file qquicklayout_p.h.

◆ isLeftMarginSet()

bool QQuickLayoutAttached::isLeftMarginSet ( ) const

inline

Definition at line 252 of file qquicklayout_p.h.

◆ isMarginsSet()

bool QQuickLayoutAttached::isMarginsSet ( ) const

inline

Definition at line 247 of file qquicklayout_p.h.

◆ isMaximumHeightSet()

bool QQuickLayoutAttached::isMaximumHeightSet ( ) const

inline

Definition at line 209 of file qquicklayout_p.h.

◆ isMaximumWidthSet()

bool QQuickLayoutAttached::isMaximumWidthSet ( ) const

inline

Definition at line 205 of file qquicklayout_p.h.

◆ isMinimumHeightSet()

bool QQuickLayoutAttached::isMinimumHeightSet ( ) const

inline

Definition at line 193 of file qquicklayout_p.h.

◆ isMinimumWidthSet()

bool QQuickLayoutAttached::isMinimumWidthSet ( ) const

inline

Definition at line 189 of file qquicklayout_p.h.

◆ isPreferredHeightSet()

bool QQuickLayoutAttached::isPreferredHeightSet ( ) const

inline

Definition at line 201 of file qquicklayout_p.h.

◆ isPreferredWidthSet()

bool QQuickLayoutAttached::isPreferredWidthSet ( ) const

inline

Definition at line 197 of file qquicklayout_p.h.

◆ isRightMarginSet()

bool QQuickLayoutAttached::isRightMarginSet ( ) const

inline

Definition at line 262 of file qquicklayout_p.h.

◆ isRowSet()

bool QQuickLayoutAttached::isRowSet ( ) const

inline

Definition at line 224 of file qquicklayout_p.h.

◆ isTopMarginSet()

bool QQuickLayoutAttached::isTopMarginSet ( ) const

inline

Definition at line 257 of file qquicklayout_p.h.

◆ isVerticalStretchFactorSet()

bool QQuickLayoutAttached::isVerticalStretchFactorSet ( ) const

inline

Definition at line 243 of file qquicklayout_p.h.

◆ leftMargin()

qreal QQuickLayoutAttached::leftMargin ( ) const

inline

Definition at line 249 of file qquicklayout_p.h.

◆ leftMarginChanged

void QQuickLayoutAttached::leftMarginChanged ( )

signal

Referenced by resetLeftMargin(), setLeftMargin(), and setMargins().

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◆ margins()

qreal QQuickLayoutAttached::margins ( ) const

inline

Definition at line 245 of file qquicklayout_p.h.

◆ marginsChanged

void QQuickLayoutAttached::marginsChanged ( )

signal

Referenced by setMargins().

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◆ maximumHeight()

qreal QQuickLayoutAttached::maximumHeight ( ) const

inline

Definition at line 207 of file qquicklayout_p.h.

References Qt::MaximumSize, and Qt::Vertical.

◆ maximumHeightChanged

void QQuickLayoutAttached::maximumHeightChanged ( )

signal

Referenced by setMaximumHeight(), and setMaximumImplicitSize().

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◆ maximumWidth()

qreal QQuickLayoutAttached::maximumWidth ( ) const

inline

Definition at line 203 of file qquicklayout_p.h.

References Qt::Horizontal, and Qt::MaximumSize.

◆ maximumWidthChanged

void QQuickLayoutAttached::maximumWidthChanged ( )

signal

Referenced by setMaximumImplicitSize(), and setMaximumWidth().

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◆ minimumHeight()

qreal QQuickLayoutAttached::minimumHeight ( ) const

inline

Definition at line 191 of file qquicklayout_p.h.

References Qt::MinimumSize, and Qt::Vertical.

◆ minimumHeightChanged

void QQuickLayoutAttached::minimumHeightChanged ( )

signal

Referenced by setMinimumHeight(), and setMinimumImplicitSize().

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◆ minimumWidth()

qreal QQuickLayoutAttached::minimumWidth ( ) const

inline

Definition at line 187 of file qquicklayout_p.h.

References Qt::Horizontal, and Qt::MinimumSize.

◆ minimumWidthChanged

void QQuickLayoutAttached::minimumWidthChanged ( )

signal

Referenced by setMinimumImplicitSize(), and setMinimumWidth().

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◆ preferredHeight()

qreal QQuickLayoutAttached::preferredHeight ( ) const

inline

Definition at line 199 of file qquicklayout_p.h.

◆ preferredHeightChanged

void QQuickLayoutAttached::preferredHeightChanged ( )

signal

Referenced by setPreferredHeight().

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◆ preferredWidth()

qreal QQuickLayoutAttached::preferredWidth ( ) const

inline

Definition at line 195 of file qquicklayout_p.h.

◆ preferredWidthChanged

void QQuickLayoutAttached::preferredWidthChanged ( )

signal

Referenced by setPreferredWidth().

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◆ qMargins()

QMarginsF QQuickLayoutAttached::qMargins ( ) const

inline

Definition at line 269 of file qquicklayout_p.h.

◆ resetBottomMargin()

void QQuickLayoutAttached::resetBottomMargin ( )

Definition at line 655 of file qquicklayout.cpp.

References QMarginsF::bottom(), bottomMarginChanged(), and emit.

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◆ resetLeftMargin()

void QQuickLayoutAttached::resetLeftMargin ( )

Definition at line 562 of file qquicklayout.cpp.

References emit, QMarginsF::left(), and leftMarginChanged().

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◆ resetRightMargin()

void QQuickLayoutAttached::resetRightMargin ( )

Definition at line 624 of file qquicklayout.cpp.

References emit, QMarginsF::right(), and rightMarginChanged().

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◆ resetTopMargin()

void QQuickLayoutAttached::resetTopMargin ( )

Definition at line 593 of file qquicklayout.cpp.

References emit, QMarginsF::top(), and topMarginChanged().

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◆ rightMargin()

qreal QQuickLayoutAttached::rightMargin ( ) const

inline

Definition at line 259 of file qquicklayout_p.h.

◆ rightMarginChanged

void QQuickLayoutAttached::rightMarginChanged ( )

signal

Referenced by resetRightMargin(), setMargins(), and setRightMargin().

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◆ row()

int QQuickLayoutAttached::row ( ) const

inline

Definition at line 222 of file qquicklayout_p.h.

References qMax().

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◆ rowChanged

void QQuickLayoutAttached::rowChanged ( )

signal

Referenced by setRow().

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◆ rowSpan()

int QQuickLayoutAttached::rowSpan ( ) const

inline

Definition at line 229 of file qquicklayout_p.h.

◆ rowSpanChanged

void QQuickLayoutAttached::rowSpanChanged ( )

signal

Referenced by setRowSpan().

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◆ setAlignment()

void QQuickLayoutAttached::setAlignment ( Qt::Alignment align )

\qmlattachedproperty Qt.Alignment Layout::alignment

This property allows you to specify the alignment of an item within the cell(s) it occupies.

The default value is 0, which means it will be {Qt.AlignVCenter | Qt.AlignLeft}. These defaults also apply if only a horizontal or vertical flag is specified: if only a horizontal flag is specified, the default vertical flag will be Qt.AlignVCenter, and if only a vertical flag is specified, the default horizontal flag will be Qt.AlignLeft.

A valid alignment is a combination of the following flags: \list

Definition at line 406 of file qquicklayout.cpp.

References alignmentChanged(), emit, layout, and QLayout::setAlignment().

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◆ setBottomMargin()

void QQuickLayoutAttached::setBottomMargin ( qreal m )

\qmlattachedproperty real Layout::bottomMargin

Specifies the bottom margin outside of an item. If the value is not set, it will use the value from \l margins.

See also: margins

Since: QtQuick.Layouts 1.2

Definition at line 644 of file qquicklayout.cpp.

References bottomMargin, bottomMarginChanged(), emit, and QMarginsF::setBottom().

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◆ setChangesNotificationEnabled()

bool QQuickLayoutAttached::setChangesNotificationEnabled ( bool enabled )

inline

Definition at line 281 of file qquicklayout_p.h.

References QQuickItem::enabled.

◆ setColumn()

void QQuickLayoutAttached::setColumn ( int column )

\qmlattachedproperty int Layout::column

This property allows you to specify the column position of an item in a \l GridLayout.

If both \l row and this property are not set, it is up to the layout to assign a cell to the item.

The default value is 0.

See also: row; columnSpan

Definition at line 373 of file qquicklayout.cpp.

References column, columnChanged(), and emit.

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◆ setColumnSpan()

void QQuickLayoutAttached::setColumnSpan ( int span )

\qmlattachedproperty int Layout::columnSpan

This property allows you to specify the column span of an item in a \l GridLayout.

The default value is 1.

See also: rowSpan; column

Definition at line 696 of file qquicklayout.cpp.

References columnSpanChanged(), and emit.

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◆ setFillHeight()

void QQuickLayoutAttached::setFillHeight ( bool fill )

\qmlattachedproperty bool Layout::fillHeight

If this property is true, the item will be as tall as possible while respecting the given constraints. If the property is false, the item will have a fixed height set to the preferred height. The default is false, except for layouts themselves, which default to true.

See also: fillWidth

Definition at line 330 of file qquicklayout.cpp.

References emit, fill(), and fillHeightChanged().

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◆ setFillWidth()

void QQuickLayoutAttached::setFillWidth ( bool fill )

\qmlattachedproperty bool Layout::fillWidth

If this property is true, the item will be as wide as possible while respecting the given constraints. If the property is false, the item will have a fixed width set to the preferred width. The default is false, except for layouts themselves, which default to true.

See also: fillHeight

Definition at line 310 of file qquicklayout.cpp.

References emit, fill(), and fillWidthChanged().

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◆ setHorizontalStretchFactor()

void QQuickLayoutAttached::setHorizontalStretchFactor ( int factor )

\qmlattachedproperty int Layout::horizontalStretchFactor

This property allows you to specify the horizontal stretch factor. By default, two identical items arranged in a linear layout will have the same size, but if the first item has a stretch factor of 1 and the second item has a stretch factor of 2, the first item will aim to get 1/3 of the available space, and the second will aim to get 2/3 of the available space. Note that, whether they become exactly 1/3 and 2/3 of the available space depends on their size hints. This is because when e.g a horizontal layout is shown in its minimum width all its child items will consequently also have their minimum width.

Likewise, when a horizontal layout has its preferred width, all child items will have their preferred widths, and when a horizontal layout has its maximum width, all child items will have their maximum widths. This strategy is applied regardless of what the individual stretch factors are. As a consequence of this, stretch factors will only determine the growth rate of child items between the preferredWidth and maximumWidth range.

The default value is -1, which means that no stretch factor is applied.

Note: This requires that Layout::fillWidth is set to true

Since: Qt 6.5

See also: verticalStretchFactor

Definition at line 444 of file qquicklayout.cpp.

References emit, Qt::Horizontal, horizontalStretchFactorChanged(), layout, and QBoxLayout::setStretchFactor().

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◆ setLeftMargin()

void QQuickLayoutAttached::setLeftMargin ( qreal m )

\qmlattachedproperty real Layout::leftMargin

Specifies the left margin outside of an item. If the value is not set, it will use the value from \l margins.

See also: margins

Since: QtQuick.Layouts 1.2

Definition at line 551 of file qquicklayout.cpp.

References emit, leftMargin, leftMarginChanged(), and QMarginsF::setLeft().

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◆ setMargins()

void QQuickLayoutAttached::setMargins ( qreal m )

\qmlattachedproperty real Layout::margins

Sets the margins outside of an item to all have the same value. The item itself does not evaluate its own margins. It is the parent's responsibility to decide if it wants to evaluate the margins.

Specifically, margins are only evaluated by ColumnLayout, RowLayout, GridLayout, and other layout-like containers, such as SplitView, where the effective cell size of an item will be increased as the margins are increased.

Therefore, if an item with margins is a child of another Item, its position, size and implicit size will remain unchanged.

Combining margins with alignment will align the item including its margins. For instance, a vertically-centered Item with a top margin of 1 and a bottom margin of 9 will cause the Items effective alignment within the cell to be 4 pixels above the center.

The default value is 0.

See also: leftMargin; topMargin; rightMargin; bottomMargin

Since: QtQuick.Layouts 1.2

Definition at line 522 of file qquicklayout.cpp.

References QMarginsF::bottom(), bottomMarginChanged(), emit, QMarginsF::left(), leftMarginChanged(), marginsChanged(), QMarginsF::right(), rightMarginChanged(), QMarginsF::top(), and topMarginChanged().

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◆ setMaximumHeight()

void QQuickLayoutAttached::setMaximumHeight ( qreal height )

\qmlattachedproperty real Layout::maximumHeight

The default value is the item's implicit maximum height.

If the item is a layout, the implicit maximum height will be the maximum height the layout can have without any of its items growing beyond their maximum height. The implicit maximum height for any other item is Number.POSITIVE_INFINITY.

Setting this value to -1 will reset the height back to its implicit maximum height.

See also: minimumHeight; preferredHeight

Definition at line 241 of file qquicklayout.cpp.

References emit, maximumHeightChanged(), and qt_is_nan().

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◆ setMaximumImplicitSize()

void QQuickLayoutAttached::setMaximumImplicitSize ( const QSizeF & sz )

Definition at line 277 of file qquicklayout.cpp.

References emit, QSizeF::height(), maximumHeightChanged(), maximumWidthChanged(), and QSizeF::width().

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◆ setMaximumWidth()

void QQuickLayoutAttached::setMaximumWidth ( qreal width )

\qmlattachedproperty real Layout::maximumWidth

This property holds the maximum width of an item in a layout. The default value is the item's implicit maximum width.

If the item is a layout, the implicit maximum width will be the maximum width the layout can have without any of its items growing beyond their maximum width. The implicit maximum width for any other item is Number.POSITIVE_INFINITY.

Setting this value to -1 will reset the width back to its implicit maximum width.

See also: minimumWidth; preferredWidth

Definition at line 214 of file qquicklayout.cpp.

References emit, maximumWidthChanged(), and qt_is_nan().

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◆ setMinimumHeight()

void QQuickLayoutAttached::setMinimumHeight ( qreal height )

\qmlattachedproperty real Layout::minimumHeight

This property holds the minimum height of an item in a layout. The default value is the item's implicit minimum height.

If the item is a layout, the implicit minimum height will be the minimum height the layout can have without any of its items shrinking below their minimum height. The implicit minimum height for any other item is 0.

Setting this value to -1 will reset the height back to its implicit minimum height.

See also: preferredHeight; maximumHeight

Definition at line 144 of file qquicklayout.cpp.

References emit, minimumHeightChanged(), and qt_is_nan().

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◆ setMinimumImplicitSize()

void QQuickLayoutAttached::setMinimumImplicitSize ( const QSizeF & sz )

Definition at line 254 of file qquicklayout.cpp.

References emit, QSizeF::height(), minimumHeightChanged(), minimumWidthChanged(), and QSizeF::width().

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◆ setMinimumWidth()

void QQuickLayoutAttached::setMinimumWidth ( qreal width )

\qmlattachedproperty real Layout::minimumWidth

This property holds the minimum width of an item in a layout. The default value is the item's implicit minimum width.

If the item is a layout, the implicit minimum width will be the minimum width the layout can have without any of its items shrinking below their minimum width. The implicit minimum width for any other item is 0.

Setting this value to -1 will reset the width back to its implicit minimum width.

See also: preferredWidth; maximumWidth

Definition at line 116 of file qquicklayout.cpp.

References emit, minimumWidthChanged(), and qt_is_nan().

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◆ setPreferredHeight()

void QQuickLayoutAttached::setPreferredHeight ( qreal height )

\qmlattachedproperty real Layout::preferredHeight

This property holds the preferred height of an item in a layout. If the preferred height is -1 it will be ignored, and the layout will use \l{Item::implicitHeight}{implicitHeight} instead. The default is -1.

See also: minimumHeight; maximumHeight

Definition at line 189 of file qquicklayout.cpp.

References emit, preferredHeightChanged(), and qt_is_nan().

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◆ setPreferredWidth()

void QQuickLayoutAttached::setPreferredWidth ( qreal width )

\qmlattachedproperty real Layout::preferredWidth

This property holds the preferred width of an item in a layout. If the preferred width is -1 it will be ignored, and the layout will use \l{Item::implicitWidth}{implicitWidth} instead. The default is -1.

See also: minimumWidth; maximumWidth

Definition at line 168 of file qquicklayout.cpp.

References emit, preferredWidthChanged(), and qt_is_nan().

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◆ setRightMargin()

void QQuickLayoutAttached::setRightMargin ( qreal m )

\qmlattachedproperty real Layout::rightMargin

Specifies the right margin outside of an item. If the value is not set, it will use the value from \l margins.

See also: margins

Since: QtQuick.Layouts 1.2

Definition at line 613 of file qquicklayout.cpp.

References emit, rightMargin, rightMarginChanged(), and QMarginsF::setRight().

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◆ setRow()

void QQuickLayoutAttached::setRow ( int row )

\qmlattachedproperty int Layout::row

This property allows you to specify the row position of an item in a \l GridLayout.

If both \l column and this property are not set, it is up to the layout to assign a cell to the item.

The default value is 0.

See also: column; rowSpan

Definition at line 352 of file qquicklayout.cpp.

References emit, row, and rowChanged().

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◆ setRowSpan()

void QQuickLayoutAttached::setRowSpan ( int span )

\qmlattachedproperty int Layout::rowSpan

This property allows you to specify the row span of an item in a \l GridLayout.

The default value is 1.

See also: columnSpan; row

Definition at line 676 of file qquicklayout.cpp.

References emit, and rowSpanChanged().

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◆ setTopMargin()

void QQuickLayoutAttached::setTopMargin ( qreal m )

\qmlattachedproperty real Layout::topMargin

Specifies the top margin outside of an item. If the value is not set, it will use the value from \l margins.

See also: margins

Since: QtQuick.Layouts 1.2

Definition at line 582 of file qquicklayout.cpp.

References emit, QMarginsF::setTop(), topMargin, and topMarginChanged().

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◆ setVerticalStretchFactor()

void QQuickLayoutAttached::setVerticalStretchFactor ( int factor )

\qmlattachedproperty int Layout::verticalStretchFactor

This property allows you to specify the vertical stretch factor. By default, two identical items arranged in a linear layout will have the same size, but if the first item has a stretch factor of 1 and the second item has a stretch factor of 2, the first item will aim to get 1/3 of the available space, and the second will aim to get 2/3 of the available space. Note that, whether they become exactly 1/3 and 2/3 of the available space depends on their size hints. This is because when e.g a vertical layout is shown in its minimum height all its child items will consequently also have their minimum height.

Likewise, when a vertical layout has its preferred height, all child items will have their preferred heights, and when a vertical layout has its maximum height, all child items will have their maximum heights. This strategy is applied regardless of what the individual stretch factors are. As a consequence of this, stretch factors will only determine the growth rate of child items between the preferredHeight and maximumHeight range.

The default value is -1, which means that no stretch factor is applied.

Note: This requires that Layout::fillHeight is set to true

Since: Qt 6.5

See also: horizontalStretchFactor

Definition at line 481 of file qquicklayout.cpp.

References emit, layout, QBoxLayout::setStretchFactor(), Qt::Vertical, and verticalStretchFactorChanged().

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◆ sizeHint()

qreal QQuickLayoutAttached::sizeHint	(	Qt::SizeHint	which,
		Qt::Orientation	orientation
	)		const

Definition at line 706 of file qquicklayout.cpp.

References QSizeF::height(), Qt::Horizontal, layout, Qt::MaximumSize, QBoxLayout::sizeHint(), and QSizeF::width().

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◆ topMargin()

qreal QQuickLayoutAttached::topMargin ( ) const

inline

Definition at line 254 of file qquicklayout_p.h.

◆ topMarginChanged

void QQuickLayoutAttached::topMarginChanged ( )

signal

Referenced by resetTopMargin(), setMargins(), and setTopMargin().

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◆ verticalStretchFactor()

int QQuickLayoutAttached::verticalStretchFactor ( ) const

inline

Definition at line 241 of file qquicklayout_p.h.

◆ verticalStretchFactorChanged

void QQuickLayoutAttached::verticalStretchFactorChanged ( )

signal

Referenced by setVerticalStretchFactor().

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Friends And Related Symbol Documentation

◆ QQuickLayout

friend class QQuickLayout

friend

Definition at line 372 of file qquicklayout_p.h.

Property Documentation

◆ alignment

Qt::Alignment QQuickLayoutAttached::alignment

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ bottomMargin

qreal QQuickLayoutAttached::bottomMargin

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setBottomMargin().

◆ column

int QQuickLayoutAttached::column

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setColumn().

◆ columnSpan

int QQuickLayoutAttached::columnSpan

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ fillHeight

bool QQuickLayoutAttached::fillHeight

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ fillWidth

bool QQuickLayoutAttached::fillWidth

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ horizontalStretchFactor

int QQuickLayoutAttached::horizontalStretchFactor

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ leftMargin

qreal QQuickLayoutAttached::leftMargin

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setLeftMargin().

◆ margins

qreal QQuickLayoutAttached::margins

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ maximumHeight

qreal QQuickLayoutAttached::maximumHeight

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ maximumWidth

qreal QQuickLayoutAttached::maximumWidth

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ minimumHeight

qreal QQuickLayoutAttached::minimumHeight

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ minimumWidth

qreal QQuickLayoutAttached::minimumWidth

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ preferredHeight

qreal QQuickLayoutAttached::preferredHeight

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ preferredWidth

qreal QQuickLayoutAttached::preferredWidth

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by QQuickLayout::effectiveSizeHints_helper().

◆ rightMargin

qreal QQuickLayoutAttached::rightMargin

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setRightMargin().

◆ row

int QQuickLayoutAttached::row

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setRow().

◆ rowSpan

int QQuickLayoutAttached::rowSpan

readwrite

Definition at line 155 of file qquicklayout_p.h.

◆ topMargin

qreal QQuickLayoutAttached::topMargin

readwrite

Definition at line 155 of file qquicklayout_p.h.

Referenced by setTopMargin().

◆ verticalStretchFactor

int QQuickLayoutAttached::verticalStretchFactor

readwrite

Definition at line 155 of file qquicklayout_p.h.

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

qtdeclarative/src/quicklayouts/qquicklayout_p.h
qtdeclarative/src/quicklayouts/qquicklayout.cpp

Signals

Public Member Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQuickLayoutAttached()

Member Function Documentation

◆ alignment()

◆ alignmentChanged

◆ bottomMargin()

◆ bottomMarginChanged

◆ column()

◆ columnChanged

◆ columnSpan()

◆ columnSpanChanged

◆ effectiveQMargins()

◆ fillHeight()

◆ fillHeightChanged

◆ fillWidth()

◆ fillWidthChanged

◆ horizontalStretchFactor()

◆ horizontalStretchFactorChanged

◆ isAlignmentSet()

◆ isBottomMarginSet()

◆ isColumnSet()

◆ isExtentExplicitlySet()

◆ isFillHeightSet()

◆ isFillWidthSet()

◆ isHorizontalStretchFactorSet()

◆ isLeftMarginSet()

◆ isMarginsSet()

◆ isMaximumHeightSet()

◆ isMaximumWidthSet()

◆ isMinimumHeightSet()

◆ isMinimumWidthSet()

◆ isPreferredHeightSet()

◆ isPreferredWidthSet()

◆ isRightMarginSet()

◆ isRowSet()

◆ isTopMarginSet()

◆ isVerticalStretchFactorSet()

◆ leftMargin()

◆ leftMarginChanged

◆ margins()

◆ marginsChanged

◆ maximumHeight()

◆ maximumHeightChanged

◆ maximumWidth()

◆ maximumWidthChanged

◆ minimumHeight()

◆ minimumHeightChanged

◆ minimumWidth()

◆ minimumWidthChanged

◆ preferredHeight()

◆ preferredHeightChanged

◆ preferredWidth()

◆ preferredWidthChanged

◆ qMargins()

◆ resetBottomMargin()

◆ resetLeftMargin()

◆ resetRightMargin()

◆ resetTopMargin()

◆ rightMargin()

◆ rightMarginChanged

◆ row()

◆ rowChanged

◆ rowSpan()

◆ rowSpanChanged

◆ setAlignment()

◆ setBottomMargin()

◆ setChangesNotificationEnabled()

◆ setColumn()

◆ setColumnSpan()

◆ setFillHeight()

◆ setFillWidth()

◆ setHorizontalStretchFactor()

◆ setLeftMargin()

◆ setMargins()