Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QQuickPathView Class Reference

#include <qquickpathview_p.h>

+ Inheritance diagram for QQuickPathView:
+ Collaboration diagram for QQuickPathView:

Public Types

enum  HighlightRangeMode { NoHighlightRange , ApplyRange , StrictlyEnforceRange }
 
enum  SnapMode { NoSnap , SnapToItem , SnapOneItem }
 
enum  MovementDirection { Shortest , Negative , Positive }
 
enum  PositionMode {
  Beginning , Center , End , Contain =4 ,
  SnapPosition
}
 
- Public Types inherited from QQuickItem
enum  Flag {
  ItemClipsChildrenToShape = 0x01 , ItemIsFocusScope = 0x04 , ItemHasContents = 0x08 , ItemAcceptsDrops = 0x10 ,
  ItemIsViewport = 0x20 , ItemObservesViewport = 0x40
}
 \qmltype Item \instantiates QQuickItem \inherits QtObject \inqmlmodule QtQuick More...
 
enum  ItemChange {
  ItemChildAddedChange , ItemChildRemovedChange , ItemSceneChange , ItemVisibleHasChanged ,
  ItemParentHasChanged , ItemOpacityHasChanged , ItemActiveFocusHasChanged , ItemRotationHasChanged ,
  ItemAntialiasingHasChanged , ItemDevicePixelRatioHasChanged , ItemEnabledHasChanged
}
 Used in conjunction with QQuickItem::itemChange() to notify the item about certain types of changes. More...
 
enum  TransformOrigin {
  TopLeft , Top , TopRight , Left ,
  Center , Right , BottomLeft , Bottom ,
  BottomRight
}
 \variable QQuickItem::ItemChangeData::realValue The numeric value that has changed: \l {QQuickItem::opacity()}{opacity}, \l {QQuickItem::rotation()}{rotation}, or \l {QScreen::devicePixelRatio}{device pixel ratio}. More...
 

Public Slots

void incrementCurrentIndex ()
 \qmlmethod QtQuick::PathView::incrementCurrentIndex()
 
void decrementCurrentIndex ()
 \qmlmethod QtQuick::PathView::decrementCurrentIndex()
 
- Public Slots inherited from QQuickItem
void update ()
 Schedules a call to updatePaintNode() for this item.
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 

Signals

void currentIndexChanged ()
 
void currentItemChanged ()
 
void offsetChanged ()
 
void modelChanged ()
 
void countChanged ()
 
void pathChanged ()
 
void preferredHighlightBeginChanged ()
 
void preferredHighlightEndChanged ()
 
void highlightRangeModeChanged ()
 
void dragMarginChanged ()
 
void snapPositionChanged ()
 
void delegateChanged ()
 
void pathItemCountChanged ()
 
void maximumFlickVelocityChanged ()
 
void flickDecelerationChanged ()
 
void interactiveChanged ()
 
void movingChanged ()
 
void flickingChanged ()
 
void draggingChanged ()
 
void highlightChanged ()
 
void highlightItemChanged ()
 
void highlightMoveDurationChanged ()
 
void movementStarted ()
 
void movementEnded ()
 
 Q_REVISION (2, 7) void movementDirectionChanged()
 
void flickStarted ()
 
void flickEnded ()
 
void dragStarted ()
 
void dragEnded ()
 
void snapModeChanged ()
 
void cacheItemCountChanged ()
 
- Signals inherited from QQuickItem
void childrenRectChanged (const QRectF &)
 
void baselineOffsetChanged (qreal)
 
void stateChanged (const QString &)
 
void focusChanged (bool)
 
void activeFocusChanged (bool)
 
Q_REVISION(6, 7) void focusPolicyChanged(Qt Q_REVISION (2, 1) void activeFocusOnTabChanged(bool)
 
void parentChanged (QQuickItem *)
 
void transformOriginChanged (TransformOrigin)
 
void smoothChanged (bool)
 
void antialiasingChanged (bool)
 
void clipChanged (bool)
 
 Q_REVISION (2, 1) void windowChanged(QQuickWindow *window)
 
void childrenChanged ()
 
void opacityChanged ()
 
void enabledChanged ()
 
void visibleChanged ()
 
void visibleChildrenChanged ()
 
void rotationChanged ()
 
void scaleChanged ()
 
void xChanged ()
 
void yChanged ()
 
void widthChanged ()
 
void heightChanged ()
 
void zChanged ()
 
void implicitWidthChanged ()
 
void implicitHeightChanged ()
 
 Q_REVISION (2, 11) void containmentMaskChanged()
 
 Q_REVISION (6, 0) void paletteChanged()
 
 Q_REVISION (6, 0) void paletteCreated()
 
- 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

 QQuickPathView (QQuickItem *parent=nullptr)
 
virtual ~QQuickPathView ()
 
QVariant model () const
 \qmlattachedproperty PathView QtQuick::PathView::view \readonly
 
void setModel (const QVariant &)
 
QQuickPathpath () const
 \qmlproperty Path QtQuick::PathView::path This property holds the path used to lay out the items.
 
void setPath (QQuickPath *)
 
int currentIndex () const
 \qmlproperty int QtQuick::PathView::currentIndex This property holds the index of the current item.
 
void setCurrentIndex (int idx)
 
QQuickItemcurrentItem () const
 \qmlproperty Item QtQuick::PathView::currentItem This property holds the current item in the view.
 
qreal offset () const
 \qmlproperty real QtQuick::PathView::offset
 
void setOffset (qreal offset)
 
QQmlComponenthighlight () const
 
void setHighlight (QQmlComponent *highlight)
 
QQuickItemhighlightItem () const
 \qmlproperty Item QtQuick::PathView::highlightItem
 
HighlightRangeMode highlightRangeMode () const
 
void setHighlightRangeMode (HighlightRangeMode mode)
 
qreal preferredHighlightBegin () const
 \qmlproperty real QtQuick::PathView::preferredHighlightBegin \qmlproperty real QtQuick::PathView::preferredHighlightEnd \qmlproperty enumeration QtQuick::PathView::highlightRangeMode
 
void setPreferredHighlightBegin (qreal)
 
qreal preferredHighlightEnd () const
 
void setPreferredHighlightEnd (qreal)
 
int highlightMoveDuration () const
 \qmlproperty int QtQuick::PathView::highlightMoveDuration This property holds the move animation duration of the highlight delegate.
 
void setHighlightMoveDuration (int)
 
qreal dragMargin () const
 \qmlproperty real QtQuick::PathView::dragMargin This property holds the maximum distance from the path that initiates mouse dragging.
 
void setDragMargin (qreal margin)
 
qreal flickDeceleration () const
 \qmlproperty real QtQuick::PathView::flickDeceleration This property holds the rate at which a flick will decelerate.
 
void setFlickDeceleration (qreal dec)
 
qreal maximumFlickVelocity () const
 \qmlproperty real QtQuick::PathView::maximumFlickVelocity This property holds the approximate maximum velocity that the user can flick the view in pixels/second.
 
void setMaximumFlickVelocity (qreal)
 
bool isInteractive () const
 \qmlproperty bool QtQuick::PathView::interactive
 
void setInteractive (bool)
 
bool isMoving () const
 \qmlproperty bool QtQuick::PathView::moving
 
bool isFlicking () const
 \qmlproperty bool QtQuick::PathView::flicking
 
bool isDragging () const
 \qmlproperty bool QtQuick::PathView::dragging
 
int count () const
 \qmlproperty int QtQuick::PathView::count This property holds the number of items in the model.
 
QQmlComponentdelegate () const
 \qmlsignal QtQuick::PathView::movementStarted()
 
void setDelegate (QQmlComponent *)
 
int pathItemCount () const
 \qmlproperty int QtQuick::PathView::pathItemCount This property holds the number of items visible on the path at any one time.
 
void setPathItemCount (int)
 
void resetPathItemCount ()
 
int cacheItemCount () const
 \qmlproperty int QtQuick::PathView::cacheItemCount This property holds the maximum number of items to cache off the path.
 
void setCacheItemCount (int)
 
SnapMode snapMode () const
 \qmlproperty enumeration QtQuick::PathView::snapMode
 
void setSnapMode (SnapMode mode)
 
MovementDirection movementDirection () const
 \qmlproperty enumeration QtQuick::PathView::movementDirection
 
void setMovementDirection (MovementDirection dir)
 
Q_INVOKABLE void positionViewAtIndex (int index, int mode)
 \qmlmethod QtQuick::PathView::positionViewAtIndex(int index, PositionMode mode)
 
Q_INVOKABLE int indexAt (qreal x, qreal y) const
 \qmlmethod int QtQuick::PathView::indexAt(real x, real y)
 
Q_INVOKABLE QQuickItemitemAt (qreal x, qreal y) const
 \qmlmethod Item QtQuick::PathView::itemAt(real x, real y)
 
 Q_REVISION (2, 13) Q_INVOKABLE QQuickItem *itemAtIndex(int index) const
 
- Public Member Functions inherited from QQuickItem
 QQuickItem (QQuickItem *parent=nullptr)
 Constructs a QQuickItem with the given parent.
 
 ~QQuickItem () override
 Destroys the QQuickItem.
 
QQuickWindowwindow () const
 Returns the window in which this item is rendered.
 
QQuickItemparentItem () const
 
void setParentItem (QQuickItem *parent)
 
void stackBefore (const QQuickItem *)
 Moves the specified sibling item to the index before this item within the list of children.
 
void stackAfter (const QQuickItem *)
 Moves the specified sibling item to the index after this item within the list of children.
 
QRectF childrenRect ()
 \qmlpropertygroup QtQuick::Item::childrenRect \qmlproperty real QtQuick::Item::childrenRect.x \qmlproperty real QtQuick::Item::childrenRect.y \qmlproperty real QtQuick::Item::childrenRect.width \qmlproperty real QtQuick::Item::childrenRect.height \readonly
 
QList< QQuickItem * > childItems () const
 Returns the children of this item.
 
bool clip () const
 \qmlproperty bool QtQuick::Item::clip This property holds whether clipping is enabled.
 
void setClip (bool)
 
QString state () const
 \qmlproperty string QtQuick::Item::state
 
void setState (const QString &)
 
qreal baselineOffset () const
 \qmlproperty int QtQuick::Item::baselineOffset
 
void setBaselineOffset (qreal)
 
QQmlListProperty< QQuickTransformtransform ()
 
qreal x () const
 
qreal y () const
 
QPointF position () const
 
void setX (qreal)
 
void setY (qreal)
 
void setPosition (const QPointF &)
 
QBindable< qrealbindableX ()
 
QBindable< qrealbindableY ()
 
qreal width () const
 
void setWidth (qreal)
 
void resetWidth ()
 
void setImplicitWidth (qreal)
 
qreal implicitWidth () const
 Returns the width of the item that is implied by other properties that determine the content.
 
QBindable< qrealbindableWidth ()
 
qreal height () const
 
void setHeight (qreal)
 
void resetHeight ()
 
void setImplicitHeight (qreal)
 
qreal implicitHeight () const
 
QBindable< qrealbindableHeight ()
 
QSizeF size () const
 
void setSize (const QSizeF &size)
 
TransformOrigin transformOrigin () const
 
void setTransformOrigin (TransformOrigin)
 
QPointF transformOriginPoint () const
 
void setTransformOriginPoint (const QPointF &)
 
qreal z () const
 
void setZ (qreal)
 
qreal rotation () const
 
void setRotation (qreal)
 
qreal scale () const
 
void setScale (qreal)
 
qreal opacity () const
 
void setOpacity (qreal)
 
bool isVisible () const
 
void setVisible (bool)
 
bool isEnabled () const
 
void setEnabled (bool)
 
bool smooth () const
 
void setSmooth (bool)
 
bool activeFocusOnTab () const
 \qmlproperty bool QtQuick::Item::activeFocusOnTab
 
void setActiveFocusOnTab (bool)
 
bool antialiasing () const
 
void setAntialiasing (bool)
 
void resetAntialiasing ()
 
Flags flags () const
 Returns the item flags for this item.
 
void setFlag (Flag flag, bool enabled=true)
 Enables the specified flag for this item if enabled is true; if enabled is false, the flag is disabled.
 
void setFlags (Flags flags)
 Enables the specified flags for this item.
 
virtual QRectF boundingRect () const
 Returns the extents of the item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height().
 
virtual QRectF clipRect () const
 Returns the rectangular area within this item that is currently visible in \l viewportItem(), if there is a viewport and the \l ItemObservesViewport flag is set; otherwise, the extents of this item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height().
 
QQuickItemviewportItem () const
 If the \l ItemObservesViewport flag is set, returns the nearest parent with the \l ItemIsViewport flag.
 
bool hasActiveFocus () const
 
bool hasFocus () const
 
void setFocus (bool)
 
void setFocus (bool focus, Qt::FocusReason reason)
 
bool isFocusScope () const
 Returns true if this item is a focus scope, and false otherwise.
 
QQuickItemscopedFocusItem () const
 If this item is a focus scope, this returns the item in its focus chain that currently has focus.
 
Qt::FocusPolicy focusPolicy () const
 
void setFocusPolicy (Qt::FocusPolicy policy)
 Sets the focus policy of this item to policy.
 
bool isAncestorOf (const QQuickItem *child) const
 Returns true if this item is an ancestor of child (i.e., if this item is child's parent, or one of child's parent's ancestors).
 
Qt::MouseButtons acceptedMouseButtons () const
 Returns the mouse buttons accepted by this item.
 
void setAcceptedMouseButtons (Qt::MouseButtons buttons)
 Sets the mouse buttons accepted by this item to buttons.
 
bool acceptHoverEvents () const
 Returns whether hover events are accepted by this item.
 
void setAcceptHoverEvents (bool enabled)
 If enabled is true, this sets the item to accept hover events; otherwise, hover events are not accepted by this item.
 
bool acceptTouchEvents () const
 Returns whether touch events are accepted by this item.
 
void setAcceptTouchEvents (bool accept)
 If enabled is true, this sets the item to accept touch events; otherwise, touch events are not accepted by this item.
 
bool isUnderMouse () const
 
void grabMouse ()
 
void ungrabMouse ()
 
bool keepMouseGrab () const
 Returns whether mouse input should exclusively remain with this item.
 
void setKeepMouseGrab (bool)
 Sets whether the mouse input should remain exclusively with this item.
 
bool filtersChildMouseEvents () const
 Returns whether pointer events intended for this item's children should be filtered through this item.
 
void setFiltersChildMouseEvents (bool filter)
 Sets whether pointer events intended for this item's children should be filtered through this item.
 
void grabTouchPoints (const QList< int > &ids)
 
void ungrabTouchPoints ()
 
bool keepTouchGrab () const
 Returns whether the touch points grabbed by this item should exclusively remain with this item.
 
void setKeepTouchGrab (bool)
 Sets whether the touch points grabbed by this item should remain exclusively with this item.
 
 Q_REVISION (2, 4) Q_INVOKABLE bool grabToImage(const QJSValue &callback
 
QSharedPointer< QQuickItemGrabResultgrabToImage (const QSize &targetSize=QSize())
 Grabs the item into an in-memory image.
 
virtual Q_INVOKABLE bool contains (const QPointF &point) const
 \qmlmethod bool QtQuick::Item::contains(point point)
 
QObjectcontainmentMask () const
 
void setContainmentMask (QObject *mask)
 
QTransform itemTransform (QQuickItem *, bool *) const
 \qmlmethod point QtQuick::Item::mapFromItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapFromItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, rect r)
 
QPointF mapToScene (const QPointF &point) const
 Maps the given point in this item's coordinate system to the equivalent point within the scene's coordinate system, and returns the mapped coordinate.
 
QRectF mapRectToItem (const QQuickItem *item, const QRectF &rect) const
 Maps the given rect in this item's coordinate system to the equivalent rectangular area within item's coordinate system, and returns the mapped rectangle value.
 
QRectF mapRectToScene (const QRectF &rect) const
 Maps the given rect in this item's coordinate system to the equivalent rectangular area within the scene's coordinate system, and returns the mapped rectangle value.
 
QPointF mapFromScene (const QPointF &point) const
 Maps the given point in the scene's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate.
 
QRectF mapRectFromItem (const QQuickItem *item, const QRectF &rect) const
 Maps the given rect in item's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value.
 
QRectF mapRectFromScene (const QRectF &rect) const
 Maps the given rect in the scene's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value.
 
void polish ()
 Schedules a polish event for this item.
 
Q_INVOKABLE QPointF mapFromItem (const QQuickItem *item, const QPointF &point) const
 Maps the given point in item's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate.
 
Q_INVOKABLE QPointF mapFromItem (const QQuickItem *item, qreal x, qreal y)
 
Q_INVOKABLE QRectF mapFromItem (const QQuickItem *item, const QRectF &rect) const
 
Q_INVOKABLE QRectF mapFromItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const
 
Q_INVOKABLE QPointF mapToItem (const QQuickItem *item, const QPointF &point) const
 Maps the given point in this item's coordinate system to the equivalent point within item's coordinate system, and returns the mapped coordinate.
 
Q_INVOKABLE QPointF mapToItem (const QQuickItem *item, qreal x, qreal y)
 
Q_INVOKABLE QRectF mapToItem (const QQuickItem *item, const QRectF &rect) const
 
Q_INVOKABLE QRectF mapToItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const
 
 Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(qreal x
 
 Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(const QPointF &point) const
 
 Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(qreal x
 
 Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(const QPointF &point) const
 
Q_INVOKABLE void forceActiveFocus ()
 \qmlmethod point QtQuick::Item::mapToItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapToItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapToItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapToItem(Item item, rect r)
 
Q_INVOKABLE void forceActiveFocus (Qt::FocusReason reason)
 \qmlmethod QtQuick::Item::forceActiveFocus(Qt::FocusReason reason) This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Forces active focus on the item with the given reason.
 
 Q_REVISION (2, 1) Q_INVOKABLE QQuickItem *nextItemInFocusChain(bool forward
 
Q_INVOKABLE QQuickItemchildAt (qreal x, qreal y) const
 \qmlmethod QtQuick::Item::childAt(real x, real y)
 
 Q_REVISION (6, 3) Q_INVOKABLE void ensurePolished()
 
 Q_REVISION (6, 3) Q_INVOKABLE void dumpItemTree() const
 
virtual bool isTextureProvider () const
 Returns true if this item is a texture provider.
 
virtual QSGTextureProvidertextureProvider () const
 Returns the texture provider for an item.
 
- 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< QStringbindableObjectName ()
 
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).
 
QThreadthread () 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 >
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 >
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () 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 QQmlParserStatus
 QQmlParserStatus ()
 
virtual ~QQmlParserStatus ()
 

Static Public Member Functions

static QQuickPathViewAttachedqmlAttachedProperties (QObject *)
 
- 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

void updatePolish () override
 This function should perform any layout as required for this item.
 
void mousePressEvent (QMouseEvent *event) override
 This event handler can be reimplemented in a subclass to receive mouse press events for an item.
 
void mouseMoveEvent (QMouseEvent *event) override
 This event handler can be reimplemented in a subclass to receive mouse move events for an item.
 
void mouseReleaseEvent (QMouseEvent *) override
 This event handler can be reimplemented in a subclass to receive mouse release events for an item.
 
bool childMouseEventFilter (QQuickItem *, QEvent *) override
 Reimplement this method to filter the pointer events that are received by this item's children.
 
void mouseUngrabEvent () override
 This event handler can be reimplemented in a subclass to be notified when a mouse ungrab event has occurred on this item.
 
void componentComplete () override
 \reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete.
 
- Protected Member Functions inherited from QQuickItem
bool event (QEvent *) override
 \reimp
 
bool isComponentComplete () const
 Returns true if construction of the QML component is complete; otherwise returns false.
 
virtual void itemChange (ItemChange, const ItemChangeData &)
 Called when change occurs for this item.
 
virtual void geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry)
 
bool widthValid () const
 Returns whether the width property has been set explicitly.
 
bool heightValid () const
 Returns whether the height property has been set explicitly.
 
void setImplicitSize (qreal, qreal)
 
void classBegin () override
 \reimp Derived classes should call the base class method before adding their own action to perform at classBegin.
 
virtual void keyPressEvent (QKeyEvent *event)
 This event handler can be reimplemented in a subclass to receive key press events for an item.
 
virtual void keyReleaseEvent (QKeyEvent *event)
 This event handler can be reimplemented in a subclass to receive key release events for an item.
 
virtual void focusInEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive focus-in events for an item.
 
virtual void focusOutEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive focus-out events for an item.
 
virtual void mouseDoubleClickEvent (QMouseEvent *event)
 This event handler can be reimplemented in a subclass to receive mouse double-click events for an item.
 
virtual void touchUngrabEvent ()
 This event handler can be reimplemented in a subclass to be notified when a touch ungrab event has occurred on this item.
 
virtual void touchEvent (QTouchEvent *event)
 This event handler can be reimplemented in a subclass to receive touch events for an item.
 
virtual void hoverEnterEvent (QHoverEvent *event)
 This event handler can be reimplemented in a subclass to receive hover-enter events for an item.
 
virtual void hoverMoveEvent (QHoverEvent *event)
 This event handler can be reimplemented in a subclass to receive hover-move events for an item.
 
virtual void hoverLeaveEvent (QHoverEvent *event)
 This event handler can be reimplemented in a subclass to receive hover-leave events for an item.
 
virtual QSGNodeupdatePaintNode (QSGNode *, UpdatePaintNodeData *)
 Called on the render thread when it is time to sync the state of the item with the scene graph.
 
virtual void releaseResources ()
 This function is called when an item should release graphics resources which are not already managed by the nodes returned from QQuickItem::updatePaintNode().
 
 QQuickItem (QQuickItemPrivate &dd, QQuickItem *parent=nullptr)
 
- Protected Member Functions inherited from QObject
QObjectsender () 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)
 

Properties

QVariant model
 
QQuickPathpath
 
int currentIndex
 
QQuickItemcurrentItem
 
qreal offset
 
QQmlComponenthighlight
 
QQuickItemhighlightItem
 
qreal preferredHighlightBegin
 
qreal preferredHighlightEnd
 
HighlightRangeMode highlightRangeMode
 
int highlightMoveDuration
 
qreal dragMargin
 
qreal maximumFlickVelocity
 
qreal flickDeceleration
 
bool interactive
 
bool moving
 
bool flicking
 
bool dragging
 
int count
 
QQmlComponentdelegate
 
int pathItemCount
 
SnapMode snapMode
 
MovementDirection movementDirection
 
int cacheItemCount
 
- Properties inherited from QQuickItem
QQuickItemparent
 \qmlproperty Item QtQuick::Item::parent This property holds the visual parent of the item.
 
qreal x
 \qmlproperty real QtQuick::Item::x \qmlproperty real QtQuick::Item::y \qmlproperty real QtQuick::Item::width \qmlproperty real QtQuick::Item::height
 
qreal y
 Defines the item's y position relative to its parent.
 
qreal z
 \qmlproperty real QtQuick::Item::z
 
qreal width
 This property holds the width of this item.
 
qreal height
 This property holds the height of this item.
 
qreal opacity
 \qmlproperty real QtQuick::Item::opacity
 
bool enabled
 \qmlproperty bool QtQuick::Item::enabled
 
bool visible
 \qmlproperty bool QtQuick::Item::visible
 
Qt::FocusPolicy focusPolicy
 \qmlproperty enumeration QtQuick::Item::focusPolicy
 
qreal rotation
 \qmlproperty real QtQuick::Item::rotation This property holds the rotation of the item in degrees clockwise around its transformOrigin.
 
qreal scale
 \qmlproperty real QtQuick::Item::scale This property holds the scale factor for this item.
 
TransformOrigin transformOrigin
 \qmlproperty enumeration QtQuick::Item::transformOrigin This property holds the origin point around which scale and rotation transform.
 
QPointF transformOriginPoint
 
QQmlListProperty< QQuickTransformtransform
 \qmlproperty list<Transform> QtQuick::Item::transform This property holds the list of transformations to apply.
 
bool smooth
 \qmlproperty bool QtQuick::Item::smooth
 
bool antialiasing
 \qmlproperty bool QtQuick::Item::antialiasing
 
qreal implicitWidth
 
qreal implicitHeight
 
QObjectcontainmentMask
 \qmlproperty QObject* QtQuick::Item::containmentMask
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Friends

class QQuickPathViewAttached
 

Additional Inherited Members

- Public Attributes inherited from QQuickItem
const QSizetargetSize = QSize())
 
qreal y const
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 33 of file qquickpathview_p.h.

Member Enumeration Documentation

◆ HighlightRangeMode

Enumerator
NoHighlightRange 
ApplyRange 
StrictlyEnforceRange 

Definition at line 93 of file qquickpathview_p.h.

◆ MovementDirection

Enumerator
Shortest 
Negative 
Positive 

Definition at line 140 of file qquickpathview_p.h.

◆ PositionMode

Enumerator
Beginning 
Center 
End 
Contain 
SnapPosition 

Definition at line 145 of file qquickpathview_p.h.

◆ SnapMode

Enumerator
NoSnap 
SnapToItem 
SnapOneItem 

Definition at line 135 of file qquickpathview_p.h.

Constructor & Destructor Documentation

◆ QQuickPathView()

QQuickPathView::QQuickPathView ( QQuickItem * parent = nullptr)
\qmltype PathView
\instantiates QQuickPathView
\inqmlmodule QtQuick
\ingroup qtquick-paths
\ingroup qtquick-views
\inherits Item
\brief Lays out model-provided items on a path.

A PathView displays data from models created from built-in QML types like ListModel
and XmlListModel, or custom model classes defined in C++ that inherit from
QAbstractListModel.

The view has a \l model, which defines the data to be displayed, and
a \l delegate, which defines how the data should be displayed.
The \l delegate is instantiated for each item on the \l path.
The items may be flicked to move them along the path.

For example, if there is a simple list model defined in a file \c ContactModel.qml like this:

\snippet qml/pathview/ContactModel.qml 0

This data can be represented as a PathView, like this:

\snippet qml/pathview/pathview.qml 0

\image pathview.gif

(Note the above example uses PathAttribute to scale and modify the
opacity of the items as they rotate. This additional code can be seen in the
PathAttribute documentation.)

PathView does not automatically handle keyboard navigation.  This is because
the keys to use for navigation will depend upon the shape of the path.  Navigation
can be added quite simply by setting \c focus to \c true and calling
\l decrementCurrentIndex() or \l incrementCurrentIndex(), for example to navigate
using the left and right arrow keys:

\qml
PathView {

... focus: true Keys.onLeftPressed: decrementCurrentIndex() Keys.onRightPressed: incrementCurrentIndex() } \endqml

The path view itself is a focus scope (see \l{Keyboard Focus in Qt Quick} for more details).

Delegates are instantiated as needed and may be destroyed at any time. State should never be stored in a delegate.

PathView attaches a number of properties to the root item of the delegate, for example {PathView.isCurrentItem}. In the following example, the root delegate item can access this attached property directly as PathView.isCurrentItem, while the child nameText object must refer to this property as wrapper.PathView.isCurrentItem.

Component {
id: delegate
Column {
id: wrapper
required property url icon
required property string name
opacity: PathView.isCurrentItem ? 1 : 0.5
Image {
anchors.horizontalCenter: nameText.horizontalCenter
width: 64; height: 64
source: wrapper.icon
}
Text {
id: nameText
text: wrapper.name
font.pointSize: 16
}
}
}

Note that views do not enable clip automatically. If the view is not clipped by another item or the screen, it will be necessary to set {clip: true} in order to have the out of view items clipped nicely.

See also
Path, {QML Data Models}, ListView, GridView, {Qt Quick Examples - Views}

Definition at line 521 of file qquickpathview.cpp.

References d.

◆ ~QQuickPathView()

QQuickPathView::~QQuickPathView ( )
virtual

Definition at line 528 of file qquickpathview.cpp.

References d.

Member Function Documentation

◆ cacheItemCount()

int QQuickPathView::cacheItemCount ( ) const

\qmlproperty int QtQuick::PathView::cacheItemCount This property holds the maximum number of items to cache off the path.

For example, a PathView with a model containing 20 items, a pathItemCount of 10, and an cacheItemCount of 4 will create up to 14 items, with 10 visible on the path and 4 invisible cached items.

The cached delegates are created asynchronously, allowing creation to occur across multiple frames and reducing the likelihood of skipping frames.

Note
Setting this property is not a replacement for creating efficient delegates. It can improve the smoothness of scrolling behavior at the expense of additional memory usage. The fewer objects and bindings in a delegate, the faster a view can be scrolled. It is important to realize that setting cacheItemCount will only postpone issues caused by slow-loading delegates, it is not a solution for this scenario.
See also
pathItemCount

Definition at line 1302 of file qquickpathview.cpp.

References d.

◆ cacheItemCountChanged

void QQuickPathView::cacheItemCountChanged ( )
signal

Referenced by setCacheItemCount().

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◆ childMouseEventFilter()

bool QQuickPathView::childMouseEventFilter ( QQuickItem * item,
QEvent * event )
overrideprotectedvirtual

Reimplement this method to filter the pointer events that are received by this item's children.

This method will only be called if filtersChildMouseEvents() is true.

Return true if the specified event should not be passed on to the specified child item, and false otherwise. If you return true, you should also \l {QEvent::accept()}{accept} or \l {QEvent::ignore()}{ignore} the event, to signal if event propagation should stop or continue. The event will, however, always be sent to all childMouseEventFilters up the parent chain.

Note
Despite the name, this function filters all QPointerEvent instances during delivery to all children (typically mouse, touch, and tablet events). When overriding this function in a subclass, we suggest writing generic event-handling code using only the accessors found in QPointerEvent. Alternatively you can switch on event->type() and/or event->device()->type() to handle different event types in different ways.
Filtering is just one way to share responsibility in case of gestural ambiguity (for example on press, you don't know whether the user will tap or drag). Another way is to call QPointerEvent::addPassiveGrabber() on press, so as to non-exclusively monitor the progress of the QEventPoint. In either case, the item or pointer handler that is monitoring can steal the exclusive grab later on, when it becomes clear that the gesture fits the pattern that it is expecting.
See also
setFiltersChildMouseEvents()

Reimplemented from QQuickItem.

Definition at line 1824 of file qquickpathview.cpp.

References QQuickItem::childMouseEventFilter(), QQuickItem::contains(), d, QList< T >::first(), i, QQuickDeliveryAgentPrivate::isMouseEvent(), QEvent::isPointerEvent(), QQuickItem::isVisible(), QQuickItem::mapFromScene(), QEvent::MouseButtonPress, QEvent::MouseButtonRelease, QEvent::MouseMove, QPointerEvent::points(), and qmlobject_cast< QQuickItem * >().

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◆ componentComplete()

void QQuickPathView::componentComplete ( )
overrideprotectedvirtual

\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete.

Reimplemented from QQuickItem.

Definition at line 1917 of file qquickpathview.cpp.

References QQuickItem::componentComplete(), componentComplete(), countChanged(), currentIndexRemainder(), d, and emit.

Referenced by componentComplete(), setDelegate(), and setModel().

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◆ count()

int QQuickPathView::count ( ) const

\qmlproperty int QtQuick::PathView::count This property holds the number of items in the model.

Definition at line 670 of file qquickpathview.cpp.

References d.

◆ countChanged

void QQuickPathView::countChanged ( )
signal

Referenced by componentComplete(), setDelegate(), and setModel().

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◆ currentIndex()

int QQuickPathView::currentIndex ( ) const

\qmlproperty int QtQuick::PathView::currentIndex This property holds the index of the current item.

Definition at line 720 of file qquickpathview.cpp.

References d.

◆ currentIndexChanged

void QQuickPathView::currentIndexChanged ( )
signal

Referenced by setCurrentIndex(), and setModel().

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◆ currentItem()

QQuickItem * QQuickPathView::currentItem ( ) const

\qmlproperty Item QtQuick::PathView::currentItem This property holds the current item in the view.

Definition at line 769 of file qquickpathview.cpp.

References d.

◆ currentItemChanged

void QQuickPathView::currentItemChanged ( )
signal

Referenced by setCurrentIndex().

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◆ decrementCurrentIndex

void QQuickPathView::decrementCurrentIndex ( )
slot

\qmlmethod QtQuick::PathView::decrementCurrentIndex()

Decrements the current index.

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

Definition at line 796 of file qquickpathview.cpp.

References currentIndex, d, Negative, and setCurrentIndex().

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◆ delegate()

QQmlComponent * QQuickPathView::delegate ( ) const

\qmlsignal QtQuick::PathView::movementStarted()

This signal is emitted when the view begins moving due to user interaction.

\qmlsignal QtQuick::PathView::movementEnded()

This signal is emitted when the view stops moving due to user interaction. If a flick was generated, this signal will be emitted once the flick stops. If a flick was not generated, this signal will be emitted when the user stops dragging - i.e. a mouse or touch release.

\qmlsignal QtQuick::PathView::flickStarted()

This signal is emitted when the view is flicked. A flick starts from the point that the mouse or touch is released, while still in motion.

\qmlsignal QtQuick::PathView::flickEnded()

This signal is emitted when the view stops moving due to a flick.

\qmlsignal QtQuick::PathView::dragStarted()

This signal is emitted when the view starts to be dragged due to user interaction.

\qmlsignal QtQuick::PathView::dragEnded()

This signal is emitted when the user stops dragging the view.

If the velocity of the drag is suffient at the time the touch/mouse button is released then a flick will start.

\qmlproperty Component QtQuick::PathView::delegate

The delegate provides a template defining each item instantiated by the view. The index is exposed as an accessible index property. Properties of the model are also available depending upon the type of \l {qml-data-models}{Data Model}.

The number of objects and bindings in the delegate has a direct effect on the flicking performance of the view when pathItemCount is specified. If at all possible, place functionality that is not needed for the normal display of the delegate in a \l Loader which can load additional components when needed.

Note that the PathView will layout the items based on the size of the root item in the delegate.

Here is an example delegate:

Component {
id: delegate
Column {
id: wrapper
required property url icon
required property string name
opacity: PathView.isCurrentItem ? 1 : 0.5
Image {
anchors.horizontalCenter: nameText.horizontalCenter
width: 64; height: 64
source: wrapper.icon
}
Text {
id: nameText
text: wrapper.name
font.pointSize: 16
}
}
}

Definition at line 1208 of file qquickpathview.cpp.

References d.

◆ delegateChanged

void QQuickPathView::delegateChanged ( )
signal

Referenced by setDelegate().

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◆ dragEnded

void QQuickPathView::dragEnded ( )
signal

◆ draggingChanged

void QQuickPathView::draggingChanged ( )
signal

◆ dragMargin()

qreal QQuickPathView::dragMargin ( ) const

\qmlproperty real QtQuick::PathView::dragMargin This property holds the maximum distance from the path that initiates mouse dragging.

By default the path can only be dragged by clicking on an item. If dragMargin is greater than zero, a drag can be initiated by clicking within dragMargin pixels of the path.

Definition at line 1024 of file qquickpathview.cpp.

References d.

◆ dragMarginChanged

void QQuickPathView::dragMarginChanged ( )
signal

Referenced by setDragMargin().

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◆ dragStarted

void QQuickPathView::dragStarted ( )
signal

◆ flickDeceleration()

qreal QQuickPathView::flickDeceleration ( ) const

\qmlproperty real QtQuick::PathView::flickDeceleration This property holds the rate at which a flick will decelerate.

The default is 100.

Definition at line 1045 of file qquickpathview.cpp.

References d.

◆ flickDecelerationChanged

void QQuickPathView::flickDecelerationChanged ( )
signal

Referenced by setFlickDeceleration().

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◆ flickEnded

void QQuickPathView::flickEnded ( )
signal

◆ flickingChanged

void QQuickPathView::flickingChanged ( )
signal

◆ flickStarted

void QQuickPathView::flickStarted ( )
signal

◆ highlight()

QQmlComponent * QQuickPathView::highlight ( ) const
\qmlproperty Component QtQuick::PathView::highlight
This property holds the component to use as the highlight.

An instance of the highlight component will be created for each view.
The geometry of the resultant component instance will be managed by the view
so as to stay with the current item.

The below example demonstrates how to make a simple highlight.  Note the use
of the \l{PathView::onPath}{PathView.onPath} attached property to ensure that
the highlight is hidden when flicked away from the path.

\qml
Component {
    Rectangle {
        visible: PathView.onPath

... } } \endqml

See also
highlightItem, highlightRangeMode

Definition at line 869 of file qquickpathview.cpp.

References d.

◆ highlightChanged

void QQuickPathView::highlightChanged ( )
signal

Referenced by setHighlight().

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◆ highlightItem()

QQuickItem * QQuickPathView::highlightItem ( ) const

\qmlproperty Item QtQuick::PathView::highlightItem

highlightItem holds the highlight item, which was created from the \l highlight component.

See also
highlight

Definition at line 894 of file qquickpathview.cpp.

References d.

◆ highlightItemChanged

void QQuickPathView::highlightItemChanged ( )
signal

◆ highlightMoveDuration()

int QQuickPathView::highlightMoveDuration ( ) const

\qmlproperty int QtQuick::PathView::highlightMoveDuration This property holds the move animation duration of the highlight delegate.

If the highlightRangeMode is StrictlyEnforceRange then this property determines the speed that the items move along the path.

The default value for the duration is 300ms.

Definition at line 1001 of file qquickpathview.cpp.

References d.

◆ highlightMoveDurationChanged

void QQuickPathView::highlightMoveDurationChanged ( )
signal

Referenced by setHighlightMoveDuration().

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◆ highlightRangeMode()

QQuickPathView::HighlightRangeMode QQuickPathView::highlightRangeMode ( ) const

Definition at line 970 of file qquickpathview.cpp.

References d.

◆ highlightRangeModeChanged

void QQuickPathView::highlightRangeModeChanged ( )
signal

Referenced by setHighlightRangeMode().

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◆ incrementCurrentIndex

void QQuickPathView::incrementCurrentIndex ( )
slot

\qmlmethod QtQuick::PathView::incrementCurrentIndex()

Increments the current index.

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

Definition at line 782 of file qquickpathview.cpp.

References currentIndex, d, Positive, and setCurrentIndex().

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◆ indexAt()

int QQuickPathView::indexAt ( qreal x,
qreal y ) const

\qmlmethod int QtQuick::PathView::indexAt(real x, real y)

Returns the index of the item containing the point x, y in content coordinates. If there is no item at the point specified, -1 is returned.

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

Definition at line 1487 of file qquickpathview.cpp.

References d, item, and itemAt().

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◆ interactiveChanged

void QQuickPathView::interactiveChanged ( )
signal

Referenced by setInteractive().

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◆ isDragging()

bool QQuickPathView::isDragging ( ) const

\qmlproperty bool QtQuick::PathView::dragging

This property holds whether the view is currently moving due to the user dragging the view.

Definition at line 1137 of file qquickpathview.cpp.

References d.

◆ isFlicking()

bool QQuickPathView::isFlicking ( ) const

\qmlproperty bool QtQuick::PathView::flicking

This property holds whether the view is currently moving due to the user flicking the view.

Definition at line 1125 of file qquickpathview.cpp.

References d.

◆ isInteractive()

bool QQuickPathView::isInteractive ( ) const

\qmlproperty bool QtQuick::PathView::interactive

A user cannot drag or flick a PathView that is not interactive.

This property is useful for temporarily disabling flicking. This allows special interaction with PathView's children.

Definition at line 1090 of file qquickpathview.cpp.

References d.

◆ isMoving()

bool QQuickPathView::isMoving ( ) const

\qmlproperty bool QtQuick::PathView::moving

This property holds whether the view is currently moving due to the user either dragging or flicking the view.

Definition at line 1113 of file qquickpathview.cpp.

References d.

◆ itemAt()

QQuickItem * QQuickPathView::itemAt ( qreal x,
qreal y ) const

\qmlmethod Item QtQuick::PathView::itemAt(real x, real y)

Returns the item containing the point x, y in content coordinates. If there is no item at the point specified, null is returned.

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

Definition at line 1502 of file qquickpathview.cpp.

References QGraphicsItem::contains(), d, item, and QGraphicsItem::mapFromItem().

Referenced by indexAt().

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◆ maximumFlickVelocity()

qreal QQuickPathView::maximumFlickVelocity ( ) const

\qmlproperty real QtQuick::PathView::maximumFlickVelocity This property holds the approximate maximum velocity that the user can flick the view in pixels/second.

The default value is platform dependent.

Definition at line 1066 of file qquickpathview.cpp.

References d.

◆ maximumFlickVelocityChanged

void QQuickPathView::maximumFlickVelocityChanged ( )
signal

Referenced by setMaximumFlickVelocity().

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◆ model()

QVariant QQuickPathView::model ( ) const

\qmlattachedproperty PathView QtQuick::PathView::view \readonly

This attached property holds the view that manages this delegate instance.

It is attached to each instance of the delegate.

\qmlattachedproperty bool QtQuick::PathView::onPath
\readonly

This attached property holds whether the item is currently on the path.

If a pathItemCount has been set, it is possible that some items may
be instantiated, but not considered to be currently on the path.
Usually, these items would be set invisible, for example:

\qml
Component {
    Rectangle {
        visible: PathView.onPath

... } } \endqml

It is attached to each instance of the delegate.

\qmlattachedproperty bool QtQuick::PathView::isCurrentItem \readonly

This attached property is true if this delegate is the current item; otherwise false.

It is attached to each instance of the delegate.

This property may be used to adjust the appearance of the current item.

Component {
id: delegate
Column {
id: wrapper
required property url icon
required property string name
opacity: PathView.isCurrentItem ? 1 : 0.5
Image {
anchors.horizontalCenter: nameText.horizontalCenter
width: 64; height: 64
source: wrapper.icon
}
Text {
id: nameText
text: wrapper.name
font.pointSize: 16
}
}
}

\qmlproperty model QtQuick::PathView::model This property holds the model providing data for the view.

The model provides a set of data that is used to create the items for the view. For large or dynamic datasets the model is usually provided by a C++ model object. Models can also be created directly in QML, using the ListModel type.

Note
changing the model will reset the offset and currentIndex to 0.
See also
{qml-data-models}{Data Models}

Definition at line 594 of file qquickpathview.cpp.

References d.

◆ modelChanged

void QQuickPathView::modelChanged ( )
signal

Referenced by setModel().

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◆ mouseMoveEvent()

void QQuickPathView::mouseMoveEvent ( QMouseEvent * event)
overrideprotectedvirtual

This event handler can be reimplemented in a subclass to receive mouse move events for an item.

The event information is provided by the event parameter.

In order to receive mouse movement events, the preceding mouse press event must be accepted (by overriding \l mousePressEvent(), for example) and \l acceptedMouseButtons() must return the relevant mouse button.

\input item.qdocinc accepting-events

Reimplemented from QQuickItem.

Definition at line 1670 of file qquickpathview.cpp.

References d, and QQuickItem::mouseMoveEvent().

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◆ mousePressEvent()

void QQuickPathView::mousePressEvent ( QMouseEvent * event)
overrideprotectedvirtual

This event handler can be reimplemented in a subclass to receive mouse press events for an item.

The event information is provided by the event parameter.

In order to receive mouse press events, \l acceptedMouseButtons() must return the relevant mouse button.

\input item.qdocinc accepting-events

Reimplemented from QQuickItem.

Definition at line 1623 of file qquickpathview.cpp.

References d, and QQuickItem::mousePressEvent().

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◆ mouseReleaseEvent()

void QQuickPathView::mouseReleaseEvent ( QMouseEvent * event)
overrideprotectedvirtual

This event handler can be reimplemented in a subclass to receive mouse release events for an item.

The event information is provided by the event parameter.

In order to receive mouse release events, the preceding mouse press event must be accepted (by overriding \l mousePressEvent(), for example) and \l acceptedMouseButtons() must return the relevant mouse button.

\input item.qdocinc accepting-events

Reimplemented from QQuickItem.

Definition at line 1732 of file qquickpathview.cpp.

References d, QQuickItem::mouseReleaseEvent(), and QQuickItem::ungrabMouse().

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◆ mouseUngrabEvent()

void QQuickPathView::mouseUngrabEvent ( )
overrideprotectedvirtual

This event handler can be reimplemented in a subclass to be notified when a mouse ungrab event has occurred on this item.

Reimplemented from QQuickItem.

Definition at line 1886 of file qquickpathview.cpp.

References d, NoSnap, qFuzzyCompare(), qRound(), and QQuickItem::setKeepMouseGrab().

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◆ movementDirection()

QQuickPathView::MovementDirection QQuickPathView::movementDirection ( ) const

\qmlproperty enumeration QtQuick::PathView::movementDirection

Since
5.7

This property determines the direction in which items move when setting the current index. The possible values are:

\value PathView.Shortest (default) the items move in the direction that requires the least movement, which could be either Negative or Positive. \value PathView.Negative the items move backwards towards their destination. \value PathView.Positive the items move forwards towards their destination.

For example, suppose that there are 5 items in the model, and \l currentIndex is 0. If currentIndex is set to 2,

\list

  • a Positive movement direction will result in the following order: 0, 1, 2
  • a Negative movement direction will result in the following order: 0, 5, 4, 3, 2
  • a Shortest movement direction will result in same order with Positive . \endlist
Note
this property doesn't affect the movement of \l incrementCurrentIndex() and \l decrementCurrentIndex().

Definition at line 1376 of file qquickpathview.cpp.

References d.

◆ movementEnded

void QQuickPathView::movementEnded ( )
signal

◆ movementStarted

void QQuickPathView::movementStarted ( )
signal

◆ movingChanged

void QQuickPathView::movingChanged ( )
signal

◆ offset()

qreal QQuickPathView::offset ( ) const

\qmlproperty real QtQuick::PathView::offset

The offset specifies how far along the path the items are from their initial positions. This is a real number that ranges from 0 to the count of items in the model.

Definition at line 809 of file qquickpathview.cpp.

References d.

◆ offsetChanged

void QQuickPathView::offsetChanged ( )
signal

Referenced by setModel().

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◆ path()

QQuickPath * QQuickPathView::path ( ) const

\qmlproperty Path QtQuick::PathView::path This property holds the path used to lay out the items.

For more information see the \l Path documentation.

Definition at line 681 of file qquickpathview.cpp.

References d.

◆ pathChanged

void QQuickPathView::pathChanged ( )
signal

Referenced by setPath().

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◆ pathItemCount()

int QQuickPathView::pathItemCount ( ) const

\qmlproperty int QtQuick::PathView::pathItemCount This property holds the number of items visible on the path at any one time.

Setting pathItemCount to undefined will show all items on the path.

Definition at line 1248 of file qquickpathview.cpp.

References d.

◆ pathItemCountChanged

void QQuickPathView::pathItemCountChanged ( )
signal

Referenced by resetPathItemCount(), and setPathItemCount().

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◆ positionViewAtIndex()

void QQuickPathView::positionViewAtIndex ( int index,
int mode )

\qmlmethod QtQuick::PathView::positionViewAtIndex(int index, PositionMode mode)

Positions the view such that the index is at the position specified by mode:

\value PathView.Beginning position item at the beginning of the path. \value PathView.Center position item in the center of the path. \value PathView.End position item at the end of the path. \value PathView.Contain ensure the item is positioned on the path. \value PathView.SnapPosition position the item at \l preferredHighlightBegin. This mode is only valid if \l highlightRangeMode is StrictlyEnforceRange or snapping is enabled via \l snapMode.

Note: methods should only be called after the Component has completed. To position the view at startup, this method should be called by Component.onCompleted. For example, to position the view at the end:

Component.onCompleted: positionViewAtIndex(count - 1, PathView.End)
Q_INVOKABLE void positionViewAtIndex(int index, int mode)
\qmlmethod QtQuick::PathView::positionViewAtIndex(int index, PositionMode mode)
GLenum GLenum GLsizei count

Definition at line 1415 of file qquickpathview.cpp.

References Beginning, Center, Contain, d, End, NoHighlightRange, NoSnap, qFloor(), qMin(), qRound(), setOffset(), and SnapPosition.

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◆ preferredHighlightBegin()

qreal QQuickPathView::preferredHighlightBegin ( ) const

\qmlproperty real QtQuick::PathView::preferredHighlightBegin \qmlproperty real QtQuick::PathView::preferredHighlightEnd \qmlproperty enumeration QtQuick::PathView::highlightRangeMode

These properties set the preferred range of the highlight (current item) within the view. The preferred values must be in the range from 0 to 1.

Valid values for highlightRangeMode are:

\value PathView.NoHighlightRange no range is applied: the highlight will move freely within the view. \value PathView.ApplyRange the view will attempt to maintain the highlight within the range, however the highlight can move outside of the range at the ends of the path or due to a mouse interaction. \value PathView.StrictlyEnforceRange the highlight will never move outside of the range. This means that the current item will change if a keyboard or mouse action would cause the highlight to move outside of the range.

The default value is PathView.StrictlyEnforceRange.

Defining a highlight range is the correct way to influence where the current item ends up when the view moves. For example, if you want the currently selected item to be in the middle of the path, then set the highlight range to be 0.5,0.5 and highlightRangeMode to PathView.StrictlyEnforceRange. Then, when the path scrolls, the currently selected item will be the item at that position. This also applies to when the currently selected item changes - it will scroll to within the preferred highlight range. Furthermore, the behaviour of the current item index will occur whether or not a highlight exists.

Note
A valid range requires preferredHighlightEnd to be greater than or equal to preferredHighlightBegin.

Definition at line 936 of file qquickpathview.cpp.

References d.

◆ preferredHighlightBeginChanged

void QQuickPathView::preferredHighlightBeginChanged ( )
signal

Referenced by setPreferredHighlightBegin().

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◆ preferredHighlightEnd()

qreal QQuickPathView::preferredHighlightEnd ( ) const

Definition at line 953 of file qquickpathview.cpp.

References d.

◆ preferredHighlightEndChanged

void QQuickPathView::preferredHighlightEndChanged ( )
signal

Referenced by setPreferredHighlightEnd().

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◆ Q_REVISION() [1/2]

QQuickPathView::Q_REVISION ( 2 ,
13  ) const

◆ Q_REVISION [2/2]

QQuickPathView::Q_REVISION ( 2 ,
7  )
signal

◆ qmlAttachedProperties()

QQuickPathViewAttached * QQuickPathView::qmlAttachedProperties ( QObject * obj)
static

Definition at line 2434 of file qquickpathview.cpp.

References QQuickPathViewAttached.

◆ resetPathItemCount()

void QQuickPathView::resetPathItemCount ( )

Definition at line 1269 of file qquickpathview.cpp.

References d, emit, QQuickItem::isComponentComplete(), and pathItemCountChanged().

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◆ setCacheItemCount()

void QQuickPathView::setCacheItemCount ( int i)

Definition at line 1308 of file qquickpathview.cpp.

References cacheItemCountChanged(), d, emit, and i.

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◆ setCurrentIndex()

void QQuickPathView::setCurrentIndex ( int idx)

Definition at line 726 of file qquickpathview.cpp.

References currentIndexChanged(), currentItemChanged(), d, emit, QQuickItem::isComponentComplete(), QQuickPathViewPrivate::SetIndex, QQuickPathViewAttached::setIsCurrentItem(), and StrictlyEnforceRange.

Referenced by decrementCurrentIndex(), and incrementCurrentIndex().

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◆ setDelegate()

void QQuickPathView::setDelegate ( QQmlComponent * delegate)

Definition at line 1219 of file qquickpathview.cpp.

References componentComplete(), QQmlDelegateModel::count(), countChanged(), d, delegate, delegateChanged(), emit, QQuickItem::isComponentComplete(), and qmlContext().

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◆ setDragMargin()

void QQuickPathView::setDragMargin ( qreal margin)

Definition at line 1030 of file qquickpathview.cpp.

References d, dragMargin, dragMarginChanged(), emit, and qFuzzyCompare().

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◆ setFlickDeceleration()

void QQuickPathView::setFlickDeceleration ( qreal dec)

Definition at line 1051 of file qquickpathview.cpp.

References d, dec, emit, flickDecelerationChanged(), and qFuzzyCompare().

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◆ setHighlight()

void QQuickPathView::setHighlight ( QQmlComponent * highlight)

Definition at line 875 of file qquickpathview.cpp.

References d, emit, highlight, and highlightChanged().

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◆ setHighlightMoveDuration()

void QQuickPathView::setHighlightMoveDuration ( int duration)

Definition at line 1007 of file qquickpathview.cpp.

References d, emit, and highlightMoveDurationChanged().

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◆ setHighlightRangeMode()

void QQuickPathView::setHighlightRangeMode ( HighlightRangeMode mode)

Definition at line 976 of file qquickpathview.cpp.

References d, emit, highlightRangeModeChanged(), NoHighlightRange, and QQuickPathViewPrivate::Other.

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◆ setInteractive()

void QQuickPathView::setInteractive ( bool interactive)

Definition at line 1096 of file qquickpathview.cpp.

References d, emit, interactive, and interactiveChanged().

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◆ setMaximumFlickVelocity()

void QQuickPathView::setMaximumFlickVelocity ( qreal vel)

Definition at line 1072 of file qquickpathview.cpp.

References d, emit, maximumFlickVelocityChanged(), and qFuzzyCompare().

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◆ setModel()

void QQuickPathView::setModel ( const QVariant & m)

Definition at line 600 of file qquickpathview.cpp.

References componentComplete(), countChanged(), currentIndexChanged(), d, emit, QQuickItem::isComponentComplete(), model, modelChanged(), offsetChanged(), qFuzzyIsNull(), qmlContext(), qmlobject_connect, qmlobject_disconnect, QQmlDelegateModel::setModel(), SIGNAL, SLOT, toVariant(), QVariant::userType(), and QVariant::value().

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◆ setMovementDirection()

void QQuickPathView::setMovementDirection ( QQuickPathView::MovementDirection dir)

Definition at line 1382 of file qquickpathview.cpp.

References d, dir, and emit.

◆ setOffset()

void QQuickPathView::setOffset ( qreal offset)

Definition at line 815 of file qquickpathview.cpp.

References d, and QQuickPathViewPrivate::Other.

Referenced by positionViewAtIndex().

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◆ setPath()

void QQuickPathView::setPath ( QQuickPath * path)

Definition at line 687 of file qquickpathview.cpp.

References d, emit, QQuickItem::isComponentComplete(), path, pathChanged(), qmlobject_connect, qmlobject_disconnect, SIGNAL, and SLOT.

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◆ setPathItemCount()

void QQuickPathView::setPathItemCount ( int i)

Definition at line 1254 of file qquickpathview.cpp.

References d, emit, i, QQuickItem::isComponentComplete(), and pathItemCountChanged().

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◆ setPreferredHighlightBegin()

void QQuickPathView::setPreferredHighlightBegin ( qreal start)

Definition at line 942 of file qquickpathview.cpp.

References d, emit, preferredHighlightBeginChanged(), and qFuzzyCompare().

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◆ setPreferredHighlightEnd()

void QQuickPathView::setPreferredHighlightEnd ( qreal end)

Definition at line 959 of file qquickpathview.cpp.

References d, emit, preferredHighlightEndChanged(), and qFuzzyCompare().

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◆ setSnapMode()

void QQuickPathView::setSnapMode ( SnapMode mode)

Definition at line 1344 of file qquickpathview.cpp.

References d, emit, and snapModeChanged().

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◆ snapMode()

QQuickPathView::SnapMode QQuickPathView::snapMode ( ) const

\qmlproperty enumeration QtQuick::PathView::snapMode

This property determines how the items will settle following a drag or flick. The possible values are:

\value PathView.NoSnap (default) the items stop anywhere along the path. \value PathView.SnapToItem the items settle with an item aligned with the \l preferredHighlightBegin. \value PathView.SnapOneItem the items settle no more than one item away from the item nearest \l preferredHighlightBegin at the time the press is released. This mode is particularly useful for moving one page at a time.

snapMode does not affect the \l currentIndex. To update the \l currentIndex as the view is moved, set \l highlightRangeMode to PathView.StrictlyEnforceRange (default for PathView).

See also
highlightRangeMode

Definition at line 1338 of file qquickpathview.cpp.

References d.

◆ snapModeChanged

void QQuickPathView::snapModeChanged ( )
signal

Referenced by setSnapMode().

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◆ snapPositionChanged

void QQuickPathView::snapPositionChanged ( )
signal

◆ updatePolish()

void QQuickPathView::updatePolish ( )
overrideprotectedvirtual

This function should perform any layout as required for this item.

When polish() is called, the scene graph schedules a polish event for this item. When the scene graph is ready to render this item, it calls updatePolish() to do any item layout as required before it renders the next frame.

See also
ensurePolished()

Reimplemented from QQuickItem.

Definition at line 1903 of file qquickpathview.cpp.

References QQuickItem::updatePolish().

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Friends And Related Symbol Documentation

◆ QQuickPathViewAttached

friend class QQuickPathViewAttached
friend

Definition at line 211 of file qquickpathview_p.h.

Referenced by qmlAttachedProperties().

Property Documentation

◆ cacheItemCount

int QQuickPathView::cacheItemCount
readwrite

Definition at line 66 of file qquickpathview_p.h.

◆ count

int QQuickPathView::count
read

Definition at line 60 of file qquickpathview_p.h.

◆ currentIndex

int QQuickPathView::currentIndex
readwrite

Definition at line 39 of file qquickpathview_p.h.

Referenced by decrementCurrentIndex(), and incrementCurrentIndex().

◆ currentItem

QQuickItem * QQuickPathView::currentItem
read

Definition at line 40 of file qquickpathview_p.h.

◆ delegate

QQmlComponent * QQuickPathView::delegate
readwrite

Definition at line 61 of file qquickpathview_p.h.

Referenced by setDelegate().

◆ dragging

bool QQuickPathView::dragging
read

Definition at line 58 of file qquickpathview_p.h.

◆ dragMargin

qreal QQuickPathView::dragMargin
readwrite

Definition at line 51 of file qquickpathview_p.h.

Referenced by setDragMargin().

◆ flickDeceleration

qreal QQuickPathView::flickDeceleration
readwrite

Definition at line 53 of file qquickpathview_p.h.

◆ flicking

bool QQuickPathView::flicking
read

Definition at line 57 of file qquickpathview_p.h.

◆ highlight

QQmlComponent * QQuickPathView::highlight
readwrite

Definition at line 43 of file qquickpathview_p.h.

Referenced by setHighlight().

◆ highlightItem

QQuickItem * QQuickPathView::highlightItem
read

Definition at line 44 of file qquickpathview_p.h.

◆ highlightMoveDuration

int QQuickPathView::highlightMoveDuration
readwrite

Definition at line 49 of file qquickpathview_p.h.

◆ highlightRangeMode

HighlightRangeMode QQuickPathView::highlightRangeMode
readwrite

Definition at line 48 of file qquickpathview_p.h.

◆ interactive

bool QQuickPathView::interactive
readwrite

Definition at line 54 of file qquickpathview_p.h.

Referenced by setInteractive().

◆ maximumFlickVelocity

qreal QQuickPathView::maximumFlickVelocity
readwrite

Definition at line 52 of file qquickpathview_p.h.

◆ model

QVariant QQuickPathView::model
readwrite

Definition at line 37 of file qquickpathview_p.h.

Referenced by setModel().

◆ movementDirection

MovementDirection QQuickPathView::movementDirection
readwrite

Definition at line 64 of file qquickpathview_p.h.

◆ moving

bool QQuickPathView::moving
read

Definition at line 56 of file qquickpathview_p.h.

◆ offset

qreal QQuickPathView::offset
readwrite

Definition at line 41 of file qquickpathview_p.h.

◆ path

QQuickPath * QQuickPathView::path
readwrite

Definition at line 38 of file qquickpathview_p.h.

Referenced by setPath().

◆ pathItemCount

int QQuickPathView::pathItemCount
readwrite

Definition at line 62 of file qquickpathview_p.h.

◆ preferredHighlightBegin

qreal QQuickPathView::preferredHighlightBegin
readwrite

Definition at line 46 of file qquickpathview_p.h.

◆ preferredHighlightEnd

qreal QQuickPathView::preferredHighlightEnd
readwrite

Definition at line 47 of file qquickpathview_p.h.

◆ snapMode

SnapMode QQuickPathView::snapMode
readwrite

Definition at line 63 of file qquickpathview_p.h.


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