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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QQuickFlowPrivate Class Reference

\qmltype Flow \nativetype QQuickFlow \inqmlmodule QtQuick \inherits Item More...

Inheritance diagram for QQuickFlowPrivate:
Collaboration diagram for QQuickFlowPrivate:

Public Member Functions

 QQuickFlowPrivate ()
void effectiveLayoutDirectionChange () override
 QQuickFlowPrivate ()
void effectiveLayoutDirectionChange () override
Public Member Functions inherited from QQuickBasePositionerPrivate
 QQuickBasePositionerPrivate ()
void init (QQuickBasePositioner::PositionerType at)
void watchChanges (QQuickItem *other)
void unwatchChanges (QQuickItem *other)
void setPositioningDirty ()
void mirrorChange () override
bool isLeftToRight () const
void itemSiblingOrderChanged (QQuickItem *other) override
void itemGeometryChanged (QQuickItem *, QQuickGeometryChange change, const QRectF &) override
void itemVisibilityChanged (QQuickItem *) override
void itemDestroyed (QQuickItem *item) override
qreal padding () const
void setTopPadding (qreal value, bool reset=false)
void setLeftPadding (qreal value, bool reset=false)
void setRightPadding (qreal value, bool reset=false)
void setBottomPadding (qreal value, bool reset=false)
Public Member Functions inherited from QQuickImplicitSizeItemPrivate
 QQuickImplicitSizeItemPrivate ()
Public Member Functions inherited from QQuickItemPrivate
 QQuickItemPrivate ()
 ~QQuickItemPrivate () override
void init (QQuickItem *parent)
QQmlListProperty< QObjectdata ()
QQmlListProperty< QObjectresources ()
QQmlListProperty< QQuickItemchildren ()
QQmlListProperty< QQuickItemvisibleChildren ()
QQmlListProperty< QQuickStatestates ()
QQmlListProperty< QQuickTransitiontransitions ()
QString state () const
void setState (const QString &)
QQuickAnchorLine left () const
QQuickAnchorLine right () const
QQuickAnchorLine horizontalCenter () const
QQuickAnchorLine top () const
QQuickAnchorLine bottom () const
QQuickAnchorLine verticalCenter () const
QQuickAnchorLine baseline () const
void localizedTouchEvent (const QTouchEvent *event, bool isFiltering, QMutableTouchEvent *localized)
bool hasPointerHandlers () const
bool hasEnabledHoverHandlers () const
virtual void addPointerHandler (QQuickPointerHandler *h)
virtual void removePointerHandler (QQuickPointerHandler *h)
QObjectsetContextMenu (QObject *menu)
void _q_resourceObjectDeleted (QObject *)
quint64 _q_createJSWrapper (QQmlV4ExecutionEnginePtr engine)
template<typename Fn, typename ... Args>
void notifyChangeListeners (QQuickItemPrivate::ChangeTypes changeTypes, Fn &&function, Args &&...args)
virtual void registerAsContainmentMask (QQuickItem *, bool)
QQuickAnchorsanchors () const
 \qmlpropertygroup QtQuick::Item::anchors \qmlproperty AnchorLine QtQuick::Item::anchors.top \qmlproperty AnchorLine QtQuick::Item::anchors.bottom \qmlproperty AnchorLine QtQuick::Item::anchors.left \qmlproperty AnchorLine QtQuick::Item::anchors.right \qmlproperty AnchorLine QtQuick::Item::anchors.horizontalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.verticalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.baseline
Qt::MouseButtons acceptedMouseButtons () const
void addItemChangeListener (QQuickItemChangeListener *listener, ChangeTypes types)
void updateOrAddItemChangeListener (QQuickItemChangeListener *listener, ChangeTypes types)
void removeItemChangeListener (QQuickItemChangeListener *, ChangeTypes types)
void updateOrAddGeometryChangeListener (QQuickItemChangeListener *listener, QQuickGeometryChange types)
void updateOrRemoveGeometryChangeListener (QQuickItemChangeListener *listener, QQuickGeometryChange types)
QQuickStateGroup_states ()
QQuickItem::TransformOrigin origin () const
QString dirtyToString () const
void dirty (DirtyType)
void addToDirtyList ()
void removeFromDirtyList ()
void setCulled (bool)
QSGContextsceneGraphContext () const
QSGRenderContextsceneGraphRenderContext () const
QList< QQuickItem * > paintOrderChildItems () const
void addChild (QQuickItem *)
void removeChild (QQuickItem *)
void siblingOrderChanged ()
void markSortedChildrenDirty (QQuickItem *child)
void refWindow (QQuickWindow *)
void derefWindow ()
qreal effectiveDevicePixelRatio () const
void updateSubFocusItem (QQuickItem *scope, bool focus)
 Clears all sub focus items from scope.
bool setFocusIfNeeded (QEvent::Type)
Qt::FocusReason lastFocusChangeReason () const
virtual bool setLastFocusChangeReason (Qt::FocusReason reason)
QTransform windowToItemTransform () const
 Returns a transform that maps points from window space into item space.
QTransform itemToWindowTransform () const
 Returns a transform that maps points from item space into window space.
void itemToParentTransform (QTransform *) const
 Modifies t with this item's local transform relative to its parent.
void setX (qreal x)
void xChanged ()
 Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, x, &QQuickItemPrivate::setX, &QQuickItemPrivate::xChanged)
void setY (qreal y)
void yChanged ()
 Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, y, &QQuickItemPrivate::setY, &QQuickItemPrivate::yChanged)
void setWidth (qreal width)
void widthChanged ()
 Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, width, &QQuickItemPrivate::setWidth, &QQuickItemPrivate::widthChanged)
void setHeight (qreal height)
void heightChanged ()
 Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, height, &QQuickItemPrivate::setHeight, &QQuickItemPrivate::heightChanged)
bool widthValid () const
bool heightValid () const
qreal z () const
qreal scale () const
qreal rotation () const
qreal opacity () const
void setAccessible ()
virtual qreal getImplicitWidth () const
virtual qreal getImplicitHeight () const
virtual void implicitWidthChanged ()
virtual void implicitHeightChanged ()
void setImplicitAntialiasing (bool antialiasing)
void resolveLayoutMirror ()
void setImplicitLayoutMirror (bool mirror, bool inherit)
void setLayoutMirror (bool mirror)
bool isMirrored () const
void emitChildrenRectChanged (const QRectF &rect)
QPointF computeTransformOrigin () const
virtual bool transformChanged (QQuickItem *transformedItem)
QPointF adjustedPosForTransform (const QPointF &centroid, const QPointF &startPos, const QVector2D &activeTranslatation, qreal startScale, qreal activeScale, qreal startRotation, qreal activeRotation)
QQuickDeliveryAgentdeliveryAgent ()
QQuickDeliveryAgentPrivatedeliveryAgentPrivate ()
QQuickDeliveryAgentensureSubsceneDeliveryAgent ()
void deliverKeyEvent (QKeyEvent *)
bool filterKeyEvent (QKeyEvent *, bool post)
void deliverShortcutOverrideEvent (QKeyEvent *)
void deliverPointerEvent (QEvent *)
bool anyPointerHandlerWants (const QPointerEvent *event, const QEventPoint &point) const
virtual bool handlePointerEvent (QPointerEvent *, bool avoidGrabbers=false)
virtual void setVisible (bool visible)
bool isTransparentForPositioner () const
void setTransparentForPositioner (bool trans)
bool calcEffectiveVisible () const
bool setEffectiveVisibleRecur (bool)
bool calcEffectiveEnable () const
void setEffectiveEnableRecur (QQuickItem *scope, bool)
QSGTransformNodeitemNode ()
QSGNodechildContainerNode ()
QSGOpacityNodeopacityNode () const
QQuickDefaultClipNodeclipNode () const
QSGRootNoderootNode () const
virtual QSGTransformNodecreateTransformNode ()
void refFromEffectItem (bool hide)
void recursiveRefFromEffectItem (int refs)
void derefFromEffectItem (bool unhide)
void itemChange (QQuickItem::ItemChange, const QQuickItem::ItemChangeData &)
void enableSubtreeChangeNotificationsForParentHierachy ()
void setHasCursorInChild (bool hasCursor)
void setHasHoverInChild (bool hasHover)
virtual void updatePolish ()
virtual void dumpItemTree (int indent) const
QLayoutPolicy sizePolicy () const
void setSizePolicy (const QLayoutPolicy::Policy &horizontalPolicy, const QLayoutPolicy::Policy &verticalPolicy)
Public Member Functions inherited from QObjectPrivate
void ensureExtraData ()
void setObjectNameWithoutBindings (const QString &name)
 QObjectPrivate (decltype(QObjectPrivateVersion) version=QObjectPrivateVersion)
virtual ~QObjectPrivate ()
void deleteChildren ()
void clearBindingStorage ()
void setParent_helper (QObject *)
void moveToThread_helper ()
void setThreadData_helper (QThreadData *currentData, QThreadData *targetData, QBindingStatus *status)
QObjectList receiverList (const char *signal) const
void ensureConnectionData ()
void addConnection (int signal, Connection *c)
int signalIndex (const char *signalName, const QMetaObject **meta=nullptr) const
bool isSignalConnected (uint signalIdx, bool checkDeclarative=true) const
bool maybeSignalConnected (uint signalIndex) const
bool isDeclarativeSignalConnected (uint signalIdx) const
void connectNotify (const QMetaMethod &signal)
void disconnectNotify (const QMetaMethod &signal)
void reinitBindingStorageAfterThreadMove ()
virtual std::string flagsForDumping () const
virtual void writeToDebugStream (QDebug &) const
QtPrivate::QPropertyAdaptorSlotObjectgetPropertyAdaptorSlotObject (const QMetaProperty &property)
Public Member Functions inherited from QObjectData
 QObjectData ()=default
virtual ~QObjectData ()=0
const QMetaObjectdynamicMetaObject () const
Public Member Functions inherited from QQuickPaletteProviderPrivateBase< QQuickItem, QQuickItemPrivate >
virtual ~QQuickPaletteProviderPrivateBase ()=default
virtual QQuickPalettepalette () const
virtual void setPalette (QQuickPalette *p)
virtual void resetPalette ()
virtual bool providesPalette () const
QPalette defaultPalette () const override
QPalette parentPalette (const QPalette &fallbackPalette) const override
void inheritPalette (const QPalette &parentPalette)
virtual void updateChildrenPalettes (const QPalette &parentPalette)
Public Member Functions inherited from QQuickAbstractPaletteProvider
virtual ~QQuickAbstractPaletteProvider ()=default
Public Member Functions inherited from QSafeQuickItemChangeListener< QQuickBasePositionerPrivate >
 ~QSafeQuickItemChangeListener () override
bool baseDeleted (const QObject *caller) const override
QString debugName () const override
Public Member Functions inherited from QQuickItemChangeListener
virtual ~QQuickItemChangeListener ()
virtual void itemEnabledChanged (QQuickItem *)
virtual void itemOpacityChanged (QQuickItem *)
virtual void itemChildAdded (QQuickItem *, QQuickItem *)
virtual void itemChildRemoved (QQuickItem *, QQuickItem *)
virtual void itemParentChanged (QQuickItem *, QQuickItem *)
virtual void itemRotationChanged (QQuickItem *)
virtual void itemImplicitWidthChanged (QQuickItem *)
virtual void itemImplicitHeightChanged (QQuickItem *)
virtual void itemFocusChanged (QQuickItem *, Qt::FocusReason)
virtual void itemScaleChanged (QQuickItem *)
virtual void itemTransformChanged (QQuickItem *, QQuickItem *)
virtual QQuickAnchorsPrivateanchorPrivate ()
virtual void addSourceItem (QQuickItem *)
virtual void removeSourceItem (QQuickItem *)

Public Attributes

QQuickFlow::Flow flow
Public Attributes inherited from QQuickBasePositionerPrivate
QLazilyAllocated< ExtraDataextra
qreal spacing
QQuickBasePositioner::PositionerType type
bool positioningDirty: 1
bool doingPositioning: 1
bool anchorConflict: 1
Qt::LayoutDirection layoutDirection
Public Attributes inherited from QQuickItemPrivate
QLazilyAllocated< ExtraData, ExtraDataTags > extra
QQuickAnchors_anchors
QVector< QQuickItemPrivate::ChangeListenerchangeListeners
QQuickStateGroup_stateGroup
quint32 flags:7
quint32 widthValidFlag:1
quint32 heightValidFlag:1
quint32 componentComplete:1
quint32 keepMouse:1
quint32 keepTouch:1
quint32 hoverEnabled:1
quint32 smooth:1
quint32 antialiasing:1
quint32 focus:1
quint32 activeFocus:1
quint32 notifiedFocus:1
quint32 notifiedActiveFocus:1
quint32 filtersChildMouseEvents:1
quint32 explicitVisible:1
quint32 effectiveVisible:1
quint32 explicitEnable:1
quint32 effectiveEnable:1
quint32 polishScheduled:1
quint32 inheritedLayoutMirror:1
quint32 effectiveLayoutMirror:1
quint32 isMirrorImplicit:1
quint32 inheritMirrorFromParent:1
quint32 inheritMirrorFromItem:1
quint32 isAccessible:1
quint32 culled:1
quint32 hasCursor:1
quint32 subtreeCursorEnabled:1
quint32 subtreeHoverEnabled:1
quint32 activeFocusOnTab:1
quint32 implicitAntialiasing:1
quint32 antialiasingValid:1
quint32 isTabFence:1
quint32 replayingPressEvent:1
quint32 touchEnabled:1
quint32 hasCursorHandler:1
quint32 maybeHasSubsceneDeliveryAgent:1
quint32 subtreeTransformChangedEnabled:1
quint32 inDestructor:1
quint32 focusReason:4
quint32 focusPolicy:4
quint32 dirtyAttributes
QQuickItemnextDirtyItem
QQuickItem ** prevDirtyItem
QQuickWindowwindow
int windowRefCount
QQuickItemparentItem
QList< QQuickItem * > childItems
QList< QQuickItem * > * sortedChildItems
QPointer< QQuickItemsubFocusItem
qreal implicitWidth
qreal implicitHeight
qreal baselineOffset
QList< QQuickTransform * > transforms
QSGTransformNodeitemNodeInstance
QSGNodepaintNode
QLayoutPolicy szPolicy
Public Attributes inherited from QObjectPrivate
ExtraDataextraData
QAtomicPointer< QThreadDatathreadData
QAtomicPointer< ConnectionDataconnections
union { 
   QObject *   currentChildBeingDeleted 
   QAbstractDeclarativeData *   declarativeData 
}; 
QAtomicPointer< QtSharedPointer::ExternalRefCountDatasharedRefcount
Public Attributes inherited from QObjectData
QObjectq_ptr
QObjectparent
QObjectList children
uint isWidget: 1
uint blockSig: 1
uint wasDeleted: 1
uint isDeletingChildren: 1
uint sendChildEvents: 1
uint receiveChildEvents: 1
uint isWindow: 1
uint deleteLaterCalled: 1
uint isQuickItem: 1
uint willBeWidget: 1
uint wasWidget: 1
uint receiveParentEvents: 1
uint unused: 20
QAtomicInt postedEvents
QDynamicMetaObjectDatametaObject
QBindingStorage bindingStorage

Additional Inherited Members

Public Types inherited from QQuickItemPrivate
enum  ChangeType {
  Geometry = 0x01 , SiblingOrder = 0x02 , Visibility = 0x04 , Opacity = 0x08 ,
  Destroyed = 0x10 , Parent = 0x20 , Children = 0x40 , Rotation = 0x80 ,
  ImplicitWidth = 0x100 , ImplicitHeight = 0x200 , Enabled = 0x400 , Focus = 0x800 ,
  Scale = 0x1000 , Matrix = 0x2000 , AllChanges = 0xFFFFFFFF
}
enum  ExtraDataTag { NoTag = 0x1 , LeftMouseButtonAccepted = 0x2 }
enum  DirtyType {
  TransformOrigin = 0x00000001 , Transform = 0x00000002 , BasicTransform = 0x00000004 , Position = 0x00000008 ,
  Size = 0x00000010 , ZValue = 0x00000020 , Content = 0x00000040 , Smooth = 0x00000080 ,
  OpacityValue = 0x00000100 , ChildrenChanged = 0x00000200 , ChildrenStackingChanged = 0x00000400 , ParentChanged = 0x00000800 ,
  Clip = 0x00001000 , Window = 0x00002000 , EffectReference = 0x00008000 , Visible = 0x00010000 ,
  HideReference = 0x00020000 , Antialiasing = 0x00040000 , TransformUpdateMask , ComplexTransformUpdateMask = Transform | Window ,
  ContentUpdateMask = Size | Content | Smooth | Window | Antialiasing , ChildrenUpdateMask = ChildrenChanged | ChildrenStackingChanged | EffectReference | Window
}
Public Types inherited from QObjectPrivate
typedef void(* StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
using ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>
Public Types inherited from QSafeQuickItemChangeListener< QQuickBasePositionerPrivate >
using InDestructorTest
using WasDeletedTest
Static Public Member Functions inherited from QQuickBasePositionerPrivate
static Qt::LayoutDirection getLayoutDirection (const QQuickBasePositioner *positioner)
static Qt::LayoutDirection getEffectiveLayoutDirection (const QQuickBasePositioner *positioner)
Static Public Member Functions inherited from QQuickItemPrivate
static QQuickItemPrivateget (QQuickItem *item)
static const QQuickItemPrivateget (const QQuickItem *item)
static void data_append (QQmlListProperty< QObject > *, QObject *)
static qsizetype data_count (QQmlListProperty< QObject > *)
 \qmlproperty list<QtObject> QtQuick::Item::data \qmldefault
static QObjectdata_at (QQmlListProperty< QObject > *, qsizetype)
static void data_clear (QQmlListProperty< QObject > *)
static void data_removeLast (QQmlListProperty< QObject > *)
static QObjectresources_at (QQmlListProperty< QObject > *, qsizetype)
static void resources_append (QQmlListProperty< QObject > *, QObject *)
static qsizetype resources_count (QQmlListProperty< QObject > *)
static void resources_clear (QQmlListProperty< QObject > *)
static void resources_removeLast (QQmlListProperty< QObject > *)
static void children_append (QQmlListProperty< QQuickItem > *, QQuickItem *)
static qsizetype children_count (QQmlListProperty< QQuickItem > *)
static QQuickItemchildren_at (QQmlListProperty< QQuickItem > *, qsizetype)
static void children_clear (QQmlListProperty< QQuickItem > *)
static void children_removeLast (QQmlListProperty< QQuickItem > *)
static qsizetype visibleChildren_count (QQmlListProperty< QQuickItem > *prop)
static QQuickItemvisibleChildren_at (QQmlListProperty< QQuickItem > *prop, qsizetype index)
static qsizetype transform_count (QQmlListProperty< QQuickTransform > *list)
static void transform_append (QQmlListProperty< QQuickTransform > *list, QQuickTransform *)
static QQuickTransformtransform_at (QQmlListProperty< QQuickTransform > *list, qsizetype)
static void transform_clear (QQmlListProperty< QQuickTransform > *list)
static bool focusNextPrev (QQuickItem *item, bool forward)
 QQuickItemPrivate::focusNextPrev focuses the next/prev item in the tab-focus-chain.
static QQuickItemnextTabChildItem (const QQuickItem *item, int start)
static QQuickItemprevTabChildItem (const QQuickItem *item, int start)
static QQuickItemnextPrevItemInTabFocusChain (QQuickItem *item, bool forward, bool wrap=true)
static bool canAcceptTabFocus (QQuickItem *item)
Static Public Member Functions inherited from QObjectPrivate
static bool removeConnection (Connection *c)
static QObjectPrivateget (QObject *o)
static const QObjectPrivateget (const QObject *o)
template<typename Func1, typename Func2>
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1, typename Func2>
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot)
static QMetaObject::Connection connectImpl (const QObject *sender, int signal_index, const QObject *receiver, void **slot, QtPrivate::QSlotObjectBase *slotObj, int type, const int *types, const QMetaObject *senderMetaObject)
static QMetaObject::Connection connect (const QObject *sender, int signal_index, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static QMetaObject::Connection connect (const QObject *sender, int signal_index, const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static bool disconnect (const QObject *sender, int signal_index, void **slot)
static bool disconnect (const QObject *sender, int signal_index, const QObject *receiver, void **slot)
Protected Member Functions inherited from QQuickPaletteProviderPrivateBase< QQuickItem, QQuickItemPrivate >
void setCurrentColorGroup ()

Detailed Description

\qmltype Flow \nativetype QQuickFlow \inqmlmodule QtQuick \inherits Item

Positions its children side by side, wrapping as necessary.

The Flow item positions its child items like words on a page, wrapping them to create rows or columns of items.

Below is a Flow that contains various \l Text items:

Flow {
anchors.fill: parent
anchors.margins: 4
spacing: 10
Text { text: "Text"; font.pixelSize: 40 }
Text { text: "items"; font.pixelSize: 40 }
Text { text: "flowing"; font.pixelSize: 40 }
Text { text: "inside"; font.pixelSize: 40 }
Text { text: "a"; font.pixelSize: 40 }
Text { text: "Flow"; font.pixelSize: 40 }
Text { text: "item"; font.pixelSize: 40 }
}

The Flow item automatically positions the child \l Text items side by side, wrapping as necessary:

If an item within a Flow is not \l {Item::}{visible}, or if it has a width or height of 0, the item will not be laid out and it will not be visible within the Flow. Also, since a Flow automatically positions its children, a child item within a Flow should not set its \l {Item::x}{x} or \l {Item::y}{y} positions or anchor itself with any of the \l {Item::anchors}{anchor} properties.

For more information on using Flow and other related positioner-types, see \l{Item Positioners}.

See also
Column, Row, Grid, Positioner, {Qt Quick Examples - Positioners}
Since
5.6 \qmlproperty real QtQuick::Flow::padding \qmlproperty real QtQuick::Flow::topPadding \qmlproperty real QtQuick::Flow::leftPadding \qmlproperty real QtQuick::Flow::bottomPadding \qmlproperty real QtQuick::Flow::rightPadding

These properties hold the padding around the content.

\qmlproperty Transition QtQuick::Flow::populate

This property holds the transition to be run for items that are part of this positioner at the time of its creation. The transition is run when the positioner is first created.

The transition can use the \l ViewTransition property to access more details about the item that is being added. See the \l ViewTransition documentation for more details and examples on using these transitions.

See also
add, ViewTransition, {Qt Quick Examples - Positioners}

\qmlproperty Transition QtQuick::Flow::add

This property holds the transition to be run for items that are added to this positioner. For a positioner, this applies to:

\list

  • Items that are created or reparented as a child of the positioner after the positioner has been created
  • Child items that change their \l Item::visible property from false to true, and thus are now visible \endlist

The transition can use the \l ViewTransition property to access more details about the item that is being added. See the \l ViewTransition documentation for more details and examples on using these transitions.

Note
This transition is not applied to the items that are already part of the positioner at the time of its creation. In this case, the \l populate transition is applied instead.
See also
populate, ViewTransition, {Qt Quick Examples - Positioners}

\qmlproperty Transition QtQuick::Flow::move

This property holds the transition to run for items that have moved within the positioner. For a positioner, this applies to:

\list

  • Child items that move when they are displaced due to the addition, removal or rearrangement of other items in the positioner
  • Child items that are repositioned due to the resizing of other items in the positioner \endlist

The transition can use the \l ViewTransition property to access more details about the item that is being moved. Note, however, that for this move transition, the ViewTransition.targetIndexes and ViewTransition.targetItems lists are only set when this transition is triggered by the addition of other items in the positioner; in other cases, these lists will be empty. See the \l ViewTransition documentation for more details and examples on using these transitions.

See also
add, populate, ViewTransition, {Qt Quick Examples - Positioners}

\qmlproperty real QtQuick::Flow::spacing

spacing is the amount in pixels left empty between each adjacent item, and defaults to 0.

See also
Grid::spacing

\qmlmethod QtQuick::Flow::forceLayout()

Since
5.9

Flow typically positions its children once per frame. This means that inside script blocks it is possible for the underlying children to have changed, but the Flow to have not yet been updated accordingly.

This method forces the Flow to immediately respond to any outstanding changes in its children.

Note: methods in general should only be called after the Component has completed.

\qmlsignal QtQuick::Flow::positioningComplete()

Since
5.9

This signal is emitted when positioning has been completed.

Definition at line 1984 of file qquickpositioners.cpp.

Constructor & Destructor Documentation

◆ QQuickFlowPrivate() [1/2]

QQuickFlowPrivate::QQuickFlowPrivate ( )
inline

Definition at line 1989 of file qquickpositioners.cpp.

◆ QQuickFlowPrivate() [2/2]

QQuickFlowPrivate::QQuickFlowPrivate ( )
inline

Definition at line 1989 of file qquickpositioners.cpp.

Member Function Documentation

◆ effectiveLayoutDirectionChange() [1/2]

void QQuickFlowPrivate::effectiveLayoutDirectionChange ( )
inlineoverridevirtual

Reimplemented from QQuickBasePositionerPrivate.

Definition at line 1993 of file qquickpositioners.cpp.

◆ effectiveLayoutDirectionChange() [2/2]

void QQuickFlowPrivate::effectiveLayoutDirectionChange ( )
inlineoverridevirtual

Reimplemented from QQuickBasePositionerPrivate.

Definition at line 1993 of file qquickpositioners.cpp.

Member Data Documentation

◆ flow

QQuickFlow::Flow QQuickFlowPrivate::flow

Definition at line 2001 of file qquickpositioners.cpp.


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