\qmltype Package \instantiates QQuickPackage \inqmlmodule QtQml.Models More...

Inheritance diagram for QQuickPackagePrivate:

Collaboration diagram for QQuickPackagePrivate:

Classes
struct	DataGuard

Public Member Functions
	QQuickPackagePrivate ()

Public Member Functions inherited from QObjectPrivate
void	ensureExtraData ()

	QObjectPrivate (int version=QObjectPrivateVersion)

virtual	~QObjectPrivate ()

void	deleteChildren ()

void	clearBindingStorage ()

void	checkForIncompatibleLibraryVersion (int version) const

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::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)

Public Member Functions inherited from QObjectData
	QObjectData ()=default

virtual	~QObjectData ()=0

QMetaObject *	dynamicMetaObject () const

Static Public Member Functions
static void	data_append (QQmlListProperty< QObject > prop, QObject o)

static void	data_clear (QQmlListProperty< QObject > *prop)

static QObject *	data_at (QQmlListProperty< QObject > *prop, qsizetype index)

static qsizetype	data_count (QQmlListProperty< QObject > *prop)

static void	data_replace (QQmlListProperty< QObject > prop, qsizetype index, QObject o)

static void	data_removeLast (QQmlListProperty< QObject > *prop)

Static Public Member Functions inherited from QObjectPrivate
static bool	removeConnection (Connection *c)

static QObjectPrivate *	get (QObject *o)

static const QObjectPrivate *	get (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)

Public Attributes
QList< DataGuard >	dataList

Public Attributes inherited from QObjectPrivate
ExtraData *	extraData

QAtomicPointer< QThreadData >	threadData

QAtomicPointer< ConnectionData >	connections

union {

QObject * currentChildBeingDeleted

QAbstractDeclarativeData * declarativeData

};

QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount

Public Attributes inherited from QObjectData
QObject *	q_ptr

QObject *	parent

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

QDynamicMetaObjectData *	metaObject

QBindingStorage	bindingStorage

Additional Inherited Members
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject , QMetaObject::Call, int, void *)

using	ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Detailed Description

\qmltype Package \instantiates QQuickPackage \inqmlmodule QtQml.Models

Specifies a collection of named items.

The Package type is used in conjunction with DelegateModel to enable delegates with a shared context to be provided to multiple views.

Any item within a Package may be assigned a name via the \l{Package::name}{Package.name} attached property.

The example below creates a Package containing two named items; list and grid. The third item in the package (the \l Rectangle) is parented to whichever delegate it should appear in. This allows an item to move between views.

Package {
    Text { id: listDelegate; width: parent.width; height: 25; text: 'Empty'; Package.name: 'list' }
    Text { id: gridDelegate; width: parent.width / 2; height: 50; text: 'Empty'; Package.name: 'grid' }
 
    Rectangle {
        id: wrapper
        width: parent.width; height: 25
        color: 'lightsteelblue'
 
        Text { text: display; anchors.centerIn: parent }
        state: root.upTo > index ? 'inGrid' : 'inList'
        states: [
            State {
                name: 'inList'
                ParentChange { target: wrapper; parent: listDelegate }
            },
            State {
                name: 'inGrid'
                ParentChange {
                    target: wrapper; parent: gridDelegate
                    x: 0; y: 0; width: gridDelegate.width; height: gridDelegate.height
                }
            }
        ]
 
        transitions: [
            Transition {
                ParentAnimation {
                    NumberAnimation { properties: 'x,y,width,height'; duration: 300 }
                }
            }
        ]
    }
}

These named items are used as the delegates by the two views who reference the special \l{DelegateModel::parts} property to select a model which provides the chosen delegate.

    DelegateModel {
        id: visualModel
        delegate: Delegate {}
        model: myModel
    }
 
    ListView {
        id: lv
        height: parent.height/2
        width: parent.width
 
        model: visualModel.parts.list
    }
    GridView {
        y: parent.height/2
        height: parent.height/2
        width: parent.width
        cellWidth: width / 2
        cellHeight: 50
        model: visualModel.parts.grid
    }

Note: Package is part of QtQml.Models since version 2.14 and part of QtQuick since version 2.0. Importing Package via QtQuick is deprecated since Qt 5.14.

See also: {Qt Quick Examples - Views}, {Qt Qml}

\qmlattachedproperty string QtQml.Models::Package::name This attached property holds the name of an item within a Package.

Definition at line 50 of file qquickpackage.cpp.

Constructor & Destructor Documentation

◆ QQuickPackagePrivate()

QQuickPackagePrivate::QQuickPackagePrivate ( )

inline

Definition at line 53 of file qquickpackage.cpp.

Member Function Documentation

◆ data_append()

static void QQuickPackagePrivate::data_append	(	QQmlListProperty< QObject > *	prop,
		QObject *	o )

inlinestatic

Definition at line 69 of file qquickpackage.cpp.

References QList< T >::append(), list, and o.