#include <qqmllistmodel_p.h>

Inheritance diagram for QQmlListModel:

Collaboration diagram for QQmlListModel:

Signals
void	countChanged ()

Signals inherited from QAbstractItemModel
void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles=QList< int >())
	This signal is emitted whenever the data in an existing item changes.

void	headerDataChanged (Qt::Orientation orientation, int first, int last)
	This signal is emitted whenever a header is changed.

void	layoutChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)

void	layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)

void	rowsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted just before rows are inserted into the model.

void	rowsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted after rows have been inserted into the model.

void	rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted just before rows are removed from the model.

void	rowsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted after rows have been removed from the model.

void	columnsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted just before columns are inserted into the model.

void	columnsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted after columns have been inserted into the model.

void	columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted just before columns are removed from the model.

void	columnsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
	This signal is emitted after columns have been removed from the model.

void	modelAboutToBeReset (QPrivateSignal)

void	modelReset (QPrivateSignal)

void	rowsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal)

void	rowsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal)

void	columnsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, QPrivateSignal)

void	columnsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, QPrivateSignal)

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
	QQmlListModel (QObject *parent=nullptr)
	\qmltype ListModel \instantiates QQmlListModel \inqmlmodule QtQml.Models

	~QQmlListModel ()

QModelIndex	index (int row, int column, const QModelIndex &parent) const override
	Returns the index of the data in row and column with parent.

int	rowCount (const QModelIndex &parent) const override
	Returns the number of rows under the given parent.

QVariant	data (const QModelIndex &index, int role) const override
	Returns the data stored under the given role for the item referred to by the index.

bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
	Sets the role data for the item at index to value.

QHash< int, QByteArray >	roleNames () const override

QVariant	data (int index, int role) const

int	count () const
	\qmlproperty int ListModel::count The number of data entries in the model.

Q_INVOKABLE void	clear ()
	\qmlmethod ListModel::clear()

Q_INVOKABLE void	remove (QQmlV4Function *args)
	\qmlmethod ListModel::remove(int index, int count = 1)

Q_INVOKABLE void	append (QQmlV4Function *args)
	\qmlmethod ListModel::append(jsobject dict)

Q_INVOKABLE void	insert (QQmlV4Function *args)
	\qmlmethod ListModel::insert(int index, jsobject dict)

Q_INVOKABLE QJSValue	get (int index) const
	\qmlmethod object ListModel::get(int index)

Q_INVOKABLE void	set (int index, const QJSValue &value)
	\qmlmethod ListModel::set(int index, jsobject dict)

Q_INVOKABLE void	setProperty (int index, const QString &property, const QVariant &value)
	\qmlmethod ListModel::setProperty(int index, string property, variant value)

Q_INVOKABLE void	move (int from, int to, int count)
	\qmlmethod ListModel::move(int from, int to, int n)

Q_INVOKABLE void	sync ()
	\qmlmethod ListModel::sync()

QQmlListModelWorkerAgent *	agent ()

bool	dynamicRoles () const

void	setDynamicRoles (bool enableDynamicRoles)
	\qmlproperty bool ListModel::dynamicRoles

Public Member Functions inherited from QAbstractListModel
	QAbstractListModel (QObject *parent=nullptr)
	Constructs an abstract list model with the given parent.

	~QAbstractListModel ()
	Destroys the abstract list model.

QModelIndex	index (int row, int column=0, const QModelIndex &parent=QModelIndex()) const override
	Returns the index of the data in row and column with parent.

QModelIndex	sibling (int row, int column, const QModelIndex &idx) const override
	\reimp

bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override
	\reimp

Qt::ItemFlags	flags (const QModelIndex &index) const override
	\reimp

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

Public Member Functions inherited from QAbstractItemModel
	QAbstractItemModel (QObject *parent=nullptr)
	Constructs an abstract item model with the given parent.

virtual	~QAbstractItemModel ()
	Destroys the abstract item model.

Q_INVOKABLE bool	hasIndex (int row, int column, const QModelIndex &parent=QModelIndex()) const
	Returns {true} if the model returns a valid QModelIndex for row and column with parent, otherwise returns {false}.

virtual Q_INVOKABLE QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const =0
	Returns the index of the item in the model specified by the given row, column and parent index.

virtual Q_INVOKABLE QModelIndex	parent (const QModelIndex &child) const =0

virtual Q_INVOKABLE QModelIndex	sibling (int row, int column, const QModelIndex &idx) const
	Returns the sibling at row and column for the item at index, or an invalid QModelIndex if there is no sibling at that location.

virtual Q_INVOKABLE int	rowCount (const QModelIndex &parent=QModelIndex()) const =0
	Returns the number of rows under the given parent.

virtual Q_INVOKABLE int	columnCount (const QModelIndex &parent=QModelIndex()) const =0
	Returns the number of columns for the children of the given parent.

virtual Q_INVOKABLE bool	hasChildren (const QModelIndex &parent=QModelIndex()) const
	Returns {true} if parent has any children; otherwise returns {false}.

virtual Q_INVOKABLE QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const =0
	Returns the data stored under the given role for the item referred to by the index.

virtual Q_INVOKABLE bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole)
	Sets the role data for the item at index to value.

virtual Q_INVOKABLE QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const
	Returns the data for the given role and section in the header with the specified orientation.

virtual bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole)
	Sets the data for the given role and section in the header with the specified orientation to the value supplied.

virtual QMap< int, QVariant >	itemData (const QModelIndex &index) const
	Returns a map with values for all predefined roles in the model for the item at the given index.

virtual bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles)
	Sets the role data for the item at index to the associated value in roles, for every Qt::ItemDataRole.

virtual bool	clearItemData (const QModelIndex &index)

virtual QStringList	mimeTypes () const
	Returns the list of allowed MIME types.

virtual QMimeData *	mimeData (const QModelIndexList &indexes) const
	Returns an object that contains serialized items of data corresponding to the list of indexes specified.

virtual bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const
	Returns {true} if a model can accept a drop of the data.

virtual bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
	Handles the data supplied by a drag and drop operation that ended with the given action.

virtual Qt::DropActions	supportedDropActions () const

virtual Qt::DropActions	supportedDragActions () const
	Returns the actions supported by the data in this model.

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool insertRows(int row

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool insertColumns(int column

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool removeRows(int row

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool removeColumns(int column

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool moveRows(const QModelIndex &sourceParent

Q_INVOKABLE	Q_REVISION (6, 4) virtual bool moveColumns(const QModelIndex &sourceParent

Q_INVOKABLE	Q_REVISION (6, 4) inline bool insertRow(int row

Q_INVOKABLE	Q_REVISION (6, 4) inline bool insertColumn(int column

Q_INVOKABLE	Q_REVISION (6, 4) inline bool removeRow(int row

Q_INVOKABLE	Q_REVISION (6, 4) inline bool removeColumn(int column

Q_INVOKABLE	Q_REVISION (6, 4) inline bool moveRow(const QModelIndex &sourceParent

Q_INVOKABLE	Q_REVISION (6, 4) inline bool moveColumn(const QModelIndex &sourceParent

virtual Q_INVOKABLE void	fetchMore (const QModelIndex &parent)
	Fetches any available data for the items with the parent specified by the parent index.

virtual Q_INVOKABLE bool	canFetchMore (const QModelIndex &parent) const
	Returns {true} if there is more data available for parent; otherwise returns {false}.

virtual Q_INVOKABLE Qt::ItemFlags	flags (const QModelIndex &index) const
	Returns the item flags for the given index.

Q_INVOKABLE	Q_REVISION (6, 4) virtual void sort(int column

virtual QModelIndex	buddy (const QModelIndex &index) const
	Returns a model index for the buddy of the item represented by index.

virtual Q_INVOKABLE QModelIndexList	match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith\|Qt::MatchWrap)) const
	Returns a list of indexes for the items in the column of the start index where data stored under the given role matches the specified value.

virtual QSize	span (const QModelIndex &index) const
	Returns the row and column span of the item represented by index.

virtual QHash< int, QByteArray >	roleNames () const

bool	checkIndex (const QModelIndex &index, CheckIndexOptions options=CheckIndexOption::NoOption) const

virtual void	multiData (const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const

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

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

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

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

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

QString	objectName () const

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

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

QBindable< QString >	bindableObjectName ()

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

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

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

Properties
int	count

bool	dynamicRoles

QObject *	agent

Properties inherited from QObject
QString	objectName
	the name of this object

Friends
class	QQmlListModelParser

class	QQmlListModelWorkerAgent

class	ModelObject

struct	QV4::ModelObject

class	ModelNodeMetaObject

class	ListModel

class	ListElement

class	DynamicRoleModelNode

class	DynamicRoleModelNodeMetaObject

struct	StringOrTranslation

Additional Inherited Members
Public Types inherited from QAbstractItemModel
enum	LayoutChangeHint { NoLayoutChangeHint , VerticalSortHint , HorizontalSortHint }
	This enum describes the way the model changes layout. More...

enum class	CheckIndexOption { NoOption = 0x0000 , IndexIsValid = 0x0001 , DoNotUseParent = 0x0002 , ParentIsInvalid = 0x0004 }

Public Slots inherited from QAbstractItemModel
virtual bool	submit ()
	Lets the model know that it should submit cached information to permanent storage.

virtual void	revert ()
	Lets the model know that it should discard cached information.

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

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

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

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

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

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

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

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

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

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

Public Attributes inherited from QAbstractItemModel
Q_INVOKABLE int	count

Q_INVOKABLE int const QModelIndex &	parent = QModelIndex())
	Returns the parent of the model item with the given index.

Q_INVOKABLE int	sourceRow

Q_INVOKABLE int int	count

Q_INVOKABLE int int const QModelIndex &	destinationParent

Q_INVOKABLE int int const QModelIndex int	destinationChild

Q_INVOKABLE int	sourceColumn

Q_INVOKABLE const QModelIndex &	parent = QModelIndex())

Q_INVOKABLE int const QModelIndex &	destinationParent

Q_INVOKABLE int const QModelIndex int	destinationChild

Q_INVOKABLE Qt::SortOrder	order = Qt::AscendingOrder)

Protected Slots inherited from QAbstractItemModel
virtual void	resetInternalData ()

Protected Member Functions inherited from QAbstractListModel
	QAbstractListModel (QAbstractItemModelPrivate &dd, QObject *parent)

Protected Member Functions inherited from QAbstractItemModel
	QAbstractItemModel (QAbstractItemModelPrivate &dd, QObject *parent=nullptr)

QModelIndex	createIndex (int row, int column, const void *data=nullptr) const
	Creates a model index for the given row and column with the internal pointer ptr.

QModelIndex	createIndex (int row, int column, quintptr id) const
	Creates a model index for the given row and column with the internal identifier, id.

void	encodeData (const QModelIndexList &indexes, QDataStream &stream) const

bool	decodeData (int row, int column, const QModelIndex &parent, QDataStream &stream)

void	beginInsertRows (const QModelIndex &parent, int first, int last)
	Begins a row insertion operation.

void	endInsertRows ()
	Ends a row insertion operation.

void	beginRemoveRows (const QModelIndex &parent, int first, int last)
	Begins a row removal operation.

void	endRemoveRows ()
	Ends a row removal operation.

bool	beginMoveRows (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationRow)

void	endMoveRows ()
	Ends a row move operation.

void	beginInsertColumns (const QModelIndex &parent, int first, int last)
	Begins a column insertion operation.

void	endInsertColumns ()
	Ends a column insertion operation.

void	beginRemoveColumns (const QModelIndex &parent, int first, int last)
	Begins a column removal operation.

void	endRemoveColumns ()
	Ends a column removal operation.

bool	beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationColumn)
	Begins a column move operation.

void	endMoveColumns ()
	Ends a column move operation.

void	beginResetModel ()
	Begins a model reset operation.

void	endResetModel ()
	Completes a model reset operation.

void	changePersistentIndex (const QModelIndex &from, const QModelIndex &to)
	Changes the QPersistentModelIndex that is equal to the given from model index to the given to model index.

void	changePersistentIndexList (const QModelIndexList &from, const QModelIndexList &to)

QModelIndexList	persistentIndexList () const

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

int	senderSignalIndex () const

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

bool	isSignalConnected (const QMetaMethod &signal) const

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

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

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

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

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

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

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

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

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

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 44 of file qqmllistmodel_p.h.

Constructor & Destructor Documentation

◆ QQmlListModel()

QQmlListModel::QQmlListModel ( QObject * parent = nullptr )

\qmltype ListModel \instantiates QQmlListModel \inqmlmodule QtQml.Models

Defines a free-form list data source.

The ListModel is a simple container of ListElement definitions, each containing data roles. The contents can be defined dynamically, or explicitly in QML.

The number of elements in the model can be obtained from its \l count property. A number of familiar methods are also provided to manipulate the contents of the model, including append(), insert(), move(), remove() and set(). These methods accept dictionaries as their arguments; these are translated to ListElement objects by the model.

Elements can be manipulated via the model using the setProperty() method, which allows the roles of the specified element to be set and changed.

Definition at line 2010 of file qqmllistmodel.cpp.

References ListModel.

◆ ~QQmlListModel()

QQmlListModel::~QQmlListModel ( )

Definition at line 2060 of file qqmllistmodel.cpp.

References ListModel::destroy(), QQmlListModelWorkerAgent::modelDestroyed(), qDeleteAll(), and QQmlListModelWorkerAgent::release().

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Member Function Documentation

◆ agent()

QQmlListModelWorkerAgent * QQmlListModel::agent ( )

◆ append()

void QQmlListModel::append ( QQmlV4Function * args )

\qmlmethod ListModel::append(jsobject dict)

Adds a new item to the end of the list model, with the values in dict.

fruitModel.append({"cost": 5.95, "name":"Pizza"})

See also: set(), remove()

Definition at line 2591 of file qqmllistmodel.cpp.

References ListModel::append(), args, count, DynamicRoleModelNode::create(), ListModel::elementCount(), QV4::Scope::engine, i, QList< T >::length(), qmlWarning(), tr, and QV4::ExecutionEngine::variantMapFromJS().

Referenced by QQmlListModelWorkerAgent::append().

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◆ clear()

void QQmlListModel::clear ( )

\qmlmethod ListModel::clear()

Deletes all content from the model.

See also: append(), remove()

Definition at line 2375 of file qqmllistmodel.cpp.

References count.

Referenced by QQmlListModelWorkerAgent::clear().

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◆ count()

int QQmlListModel::count ( ) const

\qmlproperty int ListModel::count The number of data entries in the model.

Definition at line 2363 of file qqmllistmodel.cpp.

References ListModel::elementCount().

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◆ countChanged

void QQmlListModel::countChanged ( )

signal

Referenced by QQmlListModelWorkerAgent::event().

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◆ data() [1/2]

QVariant QQmlListModel::data	(	const QModelIndex &	index,
		int	role
	)		const

overridevirtual

Returns the data stored under the given role for the item referred to by the index.

Note: If you do not have a value to return, return an invalid (default-constructed) QVariant.

See also: Qt::ItemDataRole, setData(), headerData()

Implements QAbstractItemModel.

Definition at line 2252 of file qqmllistmodel.cpp.

Referenced by ModelNodeMetaObject::updateValues(), and ModelNodeMetaObject::updateValues().

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◆ data() [2/2]

QVariant QQmlListModel::data	(	int	index,
		int	role
	)		const

Definition at line 2281 of file qqmllistmodel.cpp.

References count, and ListModel::getProperty().

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◆ dynamicRoles()

bool QQmlListModel::dynamicRoles ( ) const

inline

Definition at line 79 of file qqmllistmodel_p.h.

◆ get()

QJSValue QQmlListModel::get ( int index ) const

\qmlmethod object ListModel::get(int index)

Returns the item at index in the list model. This allows the item data to be accessed or modified from JavaScript:

Component.onCompleted: {
    fruitModel.append({"cost": 5.95, "name":"Jackfruit"});
    console.log(fruitModel.get(0).cost);
    fruitModel.get(0).cost = 10.95;
}

The index must be an element in the list.

Note that properties of the returned object that are themselves objects will also be models, and this get() method is used to access elements:

fruitModel.append(..., "attributes":
    [{"name":"spikes","value":"7mm"},
     {"name":"color","value":"green"}]);
fruitModel.get(0).attributes.get(1).value; // == "green"

Warning: The returned object is not guaranteed to remain valid. It should not be used in \l{Property Binding}{property bindings}.

See also: append()

Definition at line 2671 of file qqmllistmodel.cpp.

References QV4::MemoryManager::allocate(), count, QV4::Scope::engine, QJSValuePrivate::fromReturnedValue(), QQmlData::get(), ListModel::getOrCreateModelObject(), QV4::WeakValue::isNullOrUndefined(), QQmlData::jsWrapper, QV4::EngineBase::memoryManager, QV4::WeakValue::set(), QV4::Value::undefinedValue(), QV4::WeakValue::value(), and QV4::QObjectWrapper::wrap().

Referenced by QQmlListModelWorkerAgent::get().

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◆ index()

QModelIndex QQmlListModel::index	(	int	row,
		int	column,
		const QModelIndex &	parent
	)		const

overridevirtual

Returns the index of the data in row and column with parent.

See also: parent()

Reimplemented from QAbstractListModel.

Definition at line 2240 of file qqmllistmodel.cpp.

References count, QAbstractItemModel::createIndex(), and QAbstractListModel::parent().

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◆ insert()

void QQmlListModel::insert ( QQmlV4Function * args )

\qmlmethod ListModel::insert(int index, jsobject dict)

Adds a new item to the list model at position index, with the values in dict.

fruitModel.insert(2, {"cost": 5.95, "name":"Pizza"})

The index must be to an existing item in the list, or one past the end of the list (equivalent to append).

See also: set(), append()

Definition at line 2475 of file qqmllistmodel.cpp.

References args, count, DynamicRoleModelNode::create(), QV4::Scope::engine, i, ListModel::insert(), QList< T >::length(), qmlWarning(), QV4::Value::toInt32(), tr, and QV4::ExecutionEngine::variantMapFromJS().

Referenced by QQmlListModelWorkerAgent::insert().

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◆ move()

void QQmlListModel::move	(	int	from,
		int	to,
		int	n
	)

\qmlmethod ListModel::move(int from, int to, int n)

Moves n items from one position to another.

The from and to ranges must exist; for example, to move the first 3 items to the end of the list:

fruitModel.move(0, fruitModel.count - 3, 3)

See also: append()

Definition at line 2536 of file qqmllistmodel.cpp.

References QPODVector< T, Increment >::append(), QAbstractItemModel::beginMoveRows(), QPODVector< T, Increment >::count(), QAbstractItemModel::endMoveRows(), i, ListModel::move(), qmlWarning(), and tr.

Referenced by QQmlListModelWorkerAgent::move().

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◆ remove()

void QQmlListModel::remove ( QQmlV4Function * args )

\qmlmethod ListModel::remove(int index, int count = 1)

Deletes count number of items at index from the model.

See also: clear()

Definition at line 2387 of file qqmllistmodel.cpp.

References args, count, QList< T >::length(), qmlWarning(), QV4::Value::toInt32(), and tr.

Referenced by QQmlListModelWorkerAgent::remove().

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◆ roleNames()

QHash< int, QByteArray > QQmlListModel::roleNames ( ) const

overridevirtual

Since: 4.6

Returns the model's role names.

The default role names set by Qt are:

\table \header

Qt Role
QML Role Name \row
Qt::DisplayRole
display \row
Qt::DecorationRole
decoration \row
Qt::EditRole
edit \row
Qt::ToolTipRole
toolTip \row
Qt::StatusTipRole
statusTip \row
Qt::WhatsThisRole
whatsThis \endtable

Reimplemented from QAbstractItemModel.

Definition at line 2296 of file qqmllistmodel.cpp.

References ListModel::getExistingRole(), i, QHash< Key, T >::insert(), ListModel::roleCount(), and roleNames().

Referenced by roleNames().

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◆ rowCount()

int QQmlListModel::rowCount ( const QModelIndex & parent ) const

overridevirtual

Returns the number of rows under the given parent.

When the parent is valid it means that rowCount is returning the number of children of parent.

Note: When implementing a table based model, rowCount() should return 0 when the parent is valid.

See also: columnCount()

Implements QAbstractItemModel.

Definition at line 2247 of file qqmllistmodel.cpp.

References count, and QAbstractListModel::parent().

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◆ set()

void QQmlListModel::set	(	int	index,
		const QJSValue &	value
	)

\qmlmethod ListModel::set(int index, jsobject dict)

Changes the item at index in the list model with the values in dict. Properties not appearing in dict are left unchanged.

fruitModel.set(3, {"cost": 5.95, "name":"Pizza"})

If index is equal to count() then a new item is appended to the list. Otherwise, index must be an element in the list.

See also: append()

Definition at line 2713 of file qqmllistmodel.cpp.

References QJSValuePrivate::asReturnedValue(), count, DynamicRoleModelNode::create(), QV4::Scope::engine, ListModel::insert(), qmlWarning(), ListModel::set(), QList< T >::size(), tr, and QV4::ExecutionEngine::variantMapFromJS().

Referenced by QQmlListModelWorkerAgent::set().

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◆ setData()

bool QQmlListModel::setData	(	const QModelIndex &	index,
		const QVariant &	value,
		int	role = `Qt::EditRole`
	)

overridevirtual

Sets the role data for the item at index to value.

Returns {true} if successful; otherwise returns {false}.

The dataChanged() signal should be emitted if the data was successfully set.

The base class implementation returns {false}. This function and data() must be reimplemented for editable models.

See also: Qt::ItemDataRole, data(), itemData()

Reimplemented from QAbstractItemModel.

Definition at line 2257 of file qqmllistmodel.cpp.

References count, ListModel::getExistingRole(), property, ListModel::setOrCreateProperty(), and setValue().

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◆ setDynamicRoles()

void QQmlListModel::setDynamicRoles ( bool enableDynamicRoles )

\qmlproperty bool ListModel::dynamicRoles

By default, the type of a role is fixed the first time the role is used. For example, if you create a role called "data" and assign a number to it, you can no longer assign a string to the "data" role. However, when the dynamicRoles property is enabled, the type of a given role is not fixed and can be different between elements.

The dynamicRoles property must be set before any data is added to the ListModel, and must be set from the main thread.

A ListModel that has data statically defined (via the ListElement QML syntax) cannot have the dynamicRoles property enabled.

There is a significant performance cost to using a ListModel with dynamic roles enabled. The cost varies from platform to platform but is typically somewhere between 4-6x slower than using static role types.

Due to the performance cost of using dynamic roles, they are disabled by default.

Definition at line 2339 of file qqmllistmodel.cpp.

References qmlWarning(), ListLayout::roleCount(), and tr.

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◆ setProperty()

void QQmlListModel::setProperty	(	int	index,
		const QString &	property,
		const QVariant &	value
	)

\qmlmethod ListModel::setProperty(int index, string property, variant value)

Changes the property of the item at index in the list model to value.

fruitModel.setProperty(3, "cost", 5.95)

The index must be an element in the list.

See also: append()

Definition at line 2766 of file qqmllistmodel.cpp.

References count, property, qmlWarning(), ListModel::setOrCreateProperty(), setValue(), and tr.

Referenced by QQmlListModelWorkerAgent::setProperty().

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◆ sync()

void QQmlListModel::sync ( )

\qmlmethod ListModel::sync()

Writes any unsaved changes to the list model after it has been modified from a worker script.

Definition at line 2794 of file qqmllistmodel.cpp.

References qmlWarning().

Referenced by QQmlListModelWorkerAgent::event(), and DynamicRoleModelNode::sync().

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Friends And Related Symbol Documentation

◆ DynamicRoleModelNode

friend class DynamicRoleModelNode

friend

Definition at line 93 of file qqmllistmodel_p.h.

◆ DynamicRoleModelNodeMetaObject

friend class DynamicRoleModelNodeMetaObject

friend

Definition at line 94 of file qqmllistmodel_p.h.

◆ ListElement

friend class ListElement

friend

Definition at line 92 of file qqmllistmodel_p.h.

◆ ListModel

friend class ListModel

friend

Definition at line 91 of file qqmllistmodel_p.h.

Referenced by QQmlListModel().

◆ ModelNodeMetaObject

friend class ModelNodeMetaObject

friend

Definition at line 90 of file qqmllistmodel_p.h.

◆ ModelObject

friend class ModelObject

friend

Definition at line 88 of file qqmllistmodel_p.h.

◆ QQmlListModelParser

friend class QQmlListModelParser

friend

Definition at line 86 of file qqmllistmodel_p.h.

◆ QQmlListModelWorkerAgent

friend class QQmlListModelWorkerAgent

friend

Definition at line 87 of file qqmllistmodel_p.h.

◆ QV4::ModelObject

friend struct QV4::ModelObject

friend

Definition at line 89 of file qqmllistmodel_p.h.

◆ StringOrTranslation

friend struct StringOrTranslation

friend

Definition at line 95 of file qqmllistmodel_p.h.

Property Documentation

◆ agent

QQmlListModelWorkerAgent * QQmlListModel::agent

read

Definition at line 182 of file qqmllistmodel_p.h.

◆ count

int QQmlListModel::count

read

Definition at line 182 of file qqmllistmodel_p.h.

Referenced by append(), clear(), QQmlListModelWorkerAgent::count(), data(), QQmlListModelWorkerAgent::event(), get(), index(), insert(), remove(), rowCount(), set(), setData(), and setProperty().

◆ dynamicRoles

bool QQmlListModel::dynamicRoles

readwrite

Definition at line 182 of file qqmllistmodel_p.h.

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

qtdeclarative/src/qmlmodels/qqmllistmodel_p.h
qtdeclarative/src/qmlmodels/qqmllistmodel.cpp

Signals

Public Member Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQmlListModel()

◆ ~QQmlListModel()

Member Function Documentation

◆ agent()

◆ append()

◆ clear()

◆ count()

◆ countChanged

◆ data() [1/2]

◆ data() [2/2]

◆ dynamicRoles()

◆ get()

◆ index()

◆ insert()

◆ move()

◆ remove()

◆ roleNames()

◆ rowCount()

◆ set()

◆ setData()

◆ setDynamicRoles()

◆ setProperty()

◆ sync()

Friends And Related Symbol Documentation

◆ DynamicRoleModelNode

◆ DynamicRoleModelNodeMetaObject

◆ ListElement

◆ ListModel

◆ ModelNodeMetaObject

◆ ModelObject

◆ QQmlListModelParser

◆ QQmlListModelWorkerAgent

◆ QV4::ModelObject

◆ StringOrTranslation

Property Documentation

◆ agent

◆ count

◆ dynamicRoles