#include <qlistwidget_p.h>

Inheritance diagram for QListModel:

Collaboration diagram for QListModel:

Public Member Functions
	QListModel (QListWidget *parent)

	~QListModel ()

void	clear ()

QListWidgetItem *	at (int row) const

void	insert (int row, QListWidgetItem *item)

void	insert (int row, const QStringList &items)

void	remove (QListWidgetItem *item)

QListWidgetItem *	take (int row)

void	move (int srcRow, int dstRow)

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

QModelIndex	index (const QListWidgetItem *item) const

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.

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

bool	clearItemData (const QModelIndex &index) override

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

bool	insertRows (int row, int count=1, const QModelIndex &parent=QModelIndex()) override

bool	removeRows (int row, int count=1, const QModelIndex &parent=QModelIndex()) override

bool	moveRows (const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override

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

void	sort (int column, Qt::SortOrder order) override

void	ensureSorted (int column, Qt::SortOrder order, int start, int end)

void	itemChanged (QListWidgetItem *item, const QList< int > &roles=QList< int >())

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

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

QMimeData *	internalMimeData () const

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`.

Static Public Member Functions
static bool	itemLessThan (const QPair< QListWidgetItem , int > &left, const QPair< QListWidgetItem , int > &right)

static bool	itemGreaterThan (const QPair< QListWidgetItem , int > &left, const QPair< QListWidgetItem , int > &right)

static QList< QListWidgetItem * >::iterator	sortedInsertionIterator (const QList< QListWidgetItem * >::iterator &begin, const QList< QListWidgetItem * >::iterator &end, Qt::SortOrder order, QListWidgetItem *item)

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)

Friends
class	QListWidget

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

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 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

Properties inherited from QObject
QString	objectName
	the name of this object

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 43 of file qlistwidget_p.h.

Constructor & Destructor Documentation

◆ QListModel()

QT_BEGIN_INCLUDE_NAMESPACE QT_END_INCLUDE_NAMESPACE QListModel::QListModel ( QListWidget * parent )

Definition at line 26 of file qlistwidget.cpp.

◆ ~QListModel()

QListModel::~QListModel ( )

Definition at line 31 of file qlistwidget.cpp.

References clear().

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Member Function Documentation

◆ at()

QListWidgetItem * QListModel::at ( int row ) const

Definition at line 50 of file qlistwidget.cpp.

References QList< T >::value().

Referenced by QListWidgetPrivate::_q_emitCurrentItemChanged().

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◆ clear()

void QListModel::clear ( )

Definition at line 36 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::beginResetModel(), QList< T >::clear(), QAbstractItemModel::endResetModel(), i, QList< T >::size(), and QListWidgetItemPrivate::theid.

Referenced by ~QListModel().

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◆ clearItemData()

bool QListModel::clearItemData ( const QModelIndex & index )

overridevirtual

Since: 6.0 Removes the data stored in all the roles for the given index. Returns {true} if successful; otherwise returns {false}. The dataChanged() signal should be emitted if the data was successfully removed. The base class implementation returns {false}

See also: data(), itemData(), setData(), setItemData()

Reimplemented from QAbstractItemModel.

Definition at line 194 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::checkIndex(), QAbstractItemModel::dataChanged(), emit, QAbstractItemModel::IndexIsValid, and item.

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◆ data()

QVariant QListModel::data	(	const QModelIndex &	index,
		int	role = `Qt::DisplayRole`
	)		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 179 of file qlistwidget.cpp.

References QList< T >::at(), QListWidgetItem::data(), and QList< T >::size().

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◆ ensureSorted()

void QListModel::ensureSorted	(	int	column,
		Qt::SortOrder	order,
		int	start,
		int	end
	)

This function assumes that all items in the model except the items that are between (inclusive) start and end are sorted. With these assumptions, this function can ensure that the model is sorted in a much more efficient way than doing a naive 'sort everything'. (provided that the range is relatively small compared to the total number of items)

Definition at line 335 of file qlistwidget.cpp.

References Qt::AscendingOrder, QList< T >::at(), QList< T >::begin(), QAbstractItemModel::changePersistentIndexList(), compare(), QAbstractItemModel::count, QAbstractItemModel::createIndex(), emit, QList< T >::end(), QList< T >::first(), i, QList< T >::insert(), item, itemGreaterThan(), itemLessThan(), j, QAbstractItemModel::layoutAboutToBeChanged(), QAbstractItemModel::layoutChanged(), QAbstractItemModel::persistentIndexList(), pi, QList< T >::size(), sortedInsertionIterator(), QList< T >::takeAt(), and QAbstractItemModel::VerticalSortHint.

Referenced by QListWidgetPrivate::_q_dataChanged().

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◆ flags()

Qt::ItemFlags QListModel::flags ( const QModelIndex & index ) const

overridevirtual

\reimp

Reimplemented from QAbstractListModel.

Definition at line 289 of file qlistwidget.cpp.

References QList< T >::at(), QListWidgetItem::flags(), Qt::ItemIsDropEnabled, and QList< T >::size().

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◆ index() [1/2]

QModelIndex QListModel::index ( const QListWidgetItem * item ) const

Definition at line 153 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::createIndex(), QList< T >::isEmpty(), item, QListSpecialMethodsBase< T >::lastIndexOf(), and QList< T >::size().

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◆ index() [2/2]

QModelIndex QListModel::index	(	int	row,
		int	column = `0`,
		const QModelIndex &	parent = `QModelIndex()`
	)		const

overridevirtual

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

See also: parent()

Reimplemented from QAbstractListModel.

Definition at line 172 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::createIndex(), QAbstractItemModel::hasIndex(), and QAbstractListModel::parent().

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◆ insert() [1/2]

void QListModel::insert	(	int	row,
		const QStringList &	items
	)

Definition at line 92 of file qlistwidget.cpp.

References QAbstractItemModel::beginInsertRows(), QAbstractItemModel::count, QAbstractItemModel::endInsertRows(), i, insert(), QList< T >::insert(), item, QObject::parent(), QList< T >::size(), and view.

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◆ insert() [2/2]

void QListModel::insert	(	int	row,
		QListWidgetItem *	item
	)

Definition at line 68 of file qlistwidget.cpp.

References QList< T >::begin(), QAbstractItemModel::beginInsertRows(), QList< T >::end(), QAbstractItemModel::endInsertRows(), QList< T >::insert(), it, item, QObject::parent(), QList< T >::size(), and sortedInsertionIterator().

Referenced by insert().

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◆ insertRows()

bool QListModel::insertRows	(	int	row,
		int	count = `1`,
		const QModelIndex &	parent = `QModelIndex()`
	)

override

Definition at line 221 of file qlistwidget.cpp.

References QAbstractItemModel::beginInsertRows(), QAbstractItemModel::count, QAbstractItemModel::endInsertRows(), QList< T >::insert(), QAbstractListModel::parent(), QObject::parent(), rowCount(), QListWidgetItemPrivate::theid, and view.

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◆ internalMimeData()

QMimeData * QListModel::internalMimeData ( ) const

Definition at line 439 of file qlistwidget.cpp.

References QAbstractItemModel::mimeData().

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◆ itemChanged()

void QListModel::itemChanged	(	QListWidgetItem *	item,
		const QList< int > &	roles = `QList<int>()`
	)

Definition at line 425 of file qlistwidget.cpp.

References QAbstractItemModel::dataChanged(), emit, and item.

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◆ itemData()

QMap< int, QVariant > QListModel::itemData ( const QModelIndex & index ) const

overridevirtual

Returns a map with values for all predefined roles in the model for the item at the given index.

Reimplement this function if you want to extend the default behavior of this function to include custom roles in the map.

See also: Qt::ItemDataRole, data()

Reimplemented from QAbstractItemModel.

Definition at line 208 of file qlistwidget.cpp.

References QList< T >::at(), i, QMap< Key, T >::insert(), QWidgetItemData::role, QList< T >::size(), QWidgetItemData::value, and QListWidgetItemPrivate::values.

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◆ itemGreaterThan()

bool QListModel::itemGreaterThan	(	const QPair< QListWidgetItem *, int > &	left,
		const QPair< QListWidgetItem *, int > &	right
	)

static

Definition at line 409 of file qlistwidget.cpp.

Referenced by ensureSorted(), and sort().

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◆ itemLessThan()

bool QListModel::itemLessThan	(	const QPair< QListWidgetItem *, int > &	left,
		const QPair< QListWidgetItem *, int > &	right
	)

static

Definition at line 403 of file qlistwidget.cpp.

Referenced by ensureSorted(), and sort().

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◆ mimeData()

QMimeData * QListModel::mimeData ( const QModelIndexList & indexes ) const

overridevirtual

Returns an object that contains serialized items of data corresponding to the list of indexes specified.

The format used to describe the encoded data is obtained from the mimeTypes() function. This default implementation uses the default MIME type returned by the default implementation of mimeTypes(). If you reimplement mimeTypes() in your custom model to return more MIME types, reimplement this function to make use of them.

If the list of indexes is empty, or there are no supported MIME types, \nullptr is returned rather than a serialized empty list.

See also: mimeTypes(), dropMimeData()

Reimplemented from QAbstractItemModel.

Definition at line 444 of file qlistwidget.cpp.

References QList< T >::at(), at, QList< T >::clear(), i, mimeData, QObject::parent(), QList< T >::reserve(), QModelIndex::row(), QList< T >::size(), and view.

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◆ mimeTypes()

QStringList QListModel::mimeTypes ( ) const

overridevirtual

Returns the list of allowed MIME types.

By default, the built-in models and views use an internal MIME type: {application/x-qabstractitemmodeldatalist}.

When implementing drag and drop support in a custom model, if you will return data in formats other than the default internal MIME type, reimplement this function to return your list of MIME types.

If you reimplement this function in your custom model, you must also reimplement the member functions that call it: mimeData() and dropMimeData().

See also: mimeData(), dropMimeData()

Reimplemented from QAbstractItemModel.

Definition at line 431 of file qlistwidget.cpp.

References QObject::parent(), and view.

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◆ move()

void QListModel::move	(	int	srcRow,
		int	dstRow
	)

Definition at line 133 of file qlistwidget.cpp.

References QAbstractItemModel::beginMoveRows(), QAbstractItemModel::endMoveRows(), QList< T >::move(), and QList< T >::size().

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◆ moveRows()

bool QListModel::moveRows	(	const QModelIndex &	sourceParent,
		int	sourceRow,
		int	count,
		const QModelIndex &	destinationParent,
		int	destinationChild
	)

override

Since: 5.13 \reimp

Definition at line 262 of file qlistwidget.cpp.

References QAbstractItemModel::beginMoveRows(), QAbstractItemModel::destinationChild, QAbstractItemModel::destinationParent, QAbstractItemModel::endMoveRows(), QModelIndex::isValid(), QList< T >::move(), rowCount(), and QAbstractItemModel::sourceRow.

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◆ remove()

void QListModel::remove ( QListWidgetItem * item )

Definition at line 55 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::beginRemoveRows(), QAbstractItemModel::endRemoveRows(), QListSpecialMethodsBase< T >::indexOf(), item, Q_ASSERT, QList< T >::removeAt(), and QListWidgetItemPrivate::theid.

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◆ removeRows()

bool QListModel::removeRows	(	int	row,
		int	count = `1`,
		const QModelIndex &	parent = `QModelIndex()`
	)

override

Definition at line 241 of file qlistwidget.cpp.

References QAbstractItemModel::beginRemoveRows(), QAbstractItemModel::count, QAbstractItemModel::endRemoveRows(), QAbstractListModel::parent(), rowCount(), QList< T >::takeAt(), and QListWidgetItemPrivate::theid.

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◆ rowCount()

int QListModel::rowCount ( const QModelIndex & parent = QModelIndex() ) 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 148 of file qlistwidget.cpp.

References QAbstractListModel::parent(), and QList< T >::size().

Referenced by insertRows(), moveRows(), and removeRows().

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◆ setData()

bool QListModel::setData	(	const QModelIndex &	index,
		const QVariant &	value,
		int	role
	)

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 186 of file qlistwidget.cpp.

References QList< T >::at(), QListWidgetItem::setData(), and QList< T >::size().

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◆ sort()

void QListModel::sort	(	int	column,
		Qt::SortOrder	order
	)

override

Definition at line 296 of file qlistwidget.cpp.

References QList< T >::append(), Qt::AscendingOrder, QList< T >::at(), QAbstractItemModel::changePersistentIndexList(), compare(), QAbstractItemModel::createIndex(), emit, i, item, itemGreaterThan(), itemLessThan(), QAbstractItemModel::layoutAboutToBeChanged(), QAbstractItemModel::layoutChanged(), QList< T >::reserve(), QList< T >::size(), and QAbstractItemModel::VerticalSortHint.

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◆ sortedInsertionIterator()

QList< QListWidgetItem * >::iterator QListModel::sortedInsertionIterator	(	const QList< QListWidgetItem * >::iterator &	begin,
		const QList< QListWidgetItem * >::iterator &	end,
		Qt::SortOrder	order,
		QListWidgetItem *	item
	)

static

Definition at line 415 of file qlistwidget.cpp.

References Qt::AscendingOrder, begin(), and item.

Referenced by ensureSorted(), and insert().

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◆ take()

QListWidgetItem * QListModel::take ( int row )

Definition at line 120 of file qlistwidget.cpp.

References QList< T >::at(), QAbstractItemModel::beginRemoveRows(), QAbstractItemModel::endRemoveRows(), item, QList< T >::size(), QList< T >::takeAt(), and QListWidgetItemPrivate::theid.

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Friends And Related Symbol Documentation

◆ QListWidget

friend class QListWidget

friend

Definition at line 46 of file qlistwidget_p.h.

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

qtbase/src/widgets/itemviews/qlistwidget_p.h
qtbase/src/widgets/itemviews/qlistwidget.cpp

Public Member Functions

Static Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QListModel()

◆ ~QListModel()

Member Function Documentation

◆ at()

◆ clear()

◆ clearItemData()

◆ data()

◆ ensureSorted()

◆ flags()

◆ index() [1/2]

◆ index() [2/2]

◆ insert() [1/2]

◆ insert() [2/2]

◆ insertRows()

◆ internalMimeData()

◆ itemChanged()

◆ itemData()

◆ itemGreaterThan()

◆ itemLessThan()

◆ mimeData()

◆ mimeTypes()

◆ move()

◆ moveRows()

◆ remove()

◆ removeRows()

◆ rowCount()

◆ setData()

◆ sort()

◆ sortedInsertionIterator()

◆ take()

Friends And Related Symbol Documentation

◆ QListWidget