The QSortFilterProxyModel class provides support for sorting and filtering data passed between another model and a view. More...

#include <qsortfilterproxymodel.h>

Inheritance diagram for QSortFilterProxyModel:

Collaboration diagram for QSortFilterProxyModel:

Public Types
enum class	Direction { Rows = 0x01 , Columns = 0x02 , Both = Rows \| Columns }
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
void	setFilterRegularExpression (const QString &pattern)
void	setFilterRegularExpression (const QRegularExpression &regularExpression)
void	setFilterWildcard (const QString &pattern)
	Sets the wildcard expression used to filter the contents of the source model to the given pattern.
void	setFilterFixedString (const QString &pattern)
	Sets the fixed string used to filter the contents of the source model to the given pattern.
void	invalidate ()
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals
void	dynamicSortFilterChanged (bool dynamicSortFilter)
void	filterCaseSensitivityChanged (Qt::CaseSensitivity filterCaseSensitivity)
	This signal is emitted when the case sensitivity of the filter changes to filterCaseSensitivity.
void	sortCaseSensitivityChanged (Qt::CaseSensitivity sortCaseSensitivity)
	This signal is emitted when the case sensitivity for sorting changes to sortCaseSensitivity.
void	sortLocaleAwareChanged (bool sortLocaleAware)
	This signal is emitted when the locale aware setting changes to sortLocaleAware.
void	sortRoleChanged (int sortRole)
	This signal is emitted when the sort role changes to sortRole.
void	filterRoleChanged (int filterRole)
	This signal is emitted when the filter role changes to filterRole.
void	recursiveFilteringEnabledChanged (bool recursiveFilteringEnabled)
	This signal is emitted when the recursive filter setting is changed to recursiveFilteringEnabled.
void	autoAcceptChildRowsChanged (bool autoAcceptChildRows)
	This signals is emitted when the value of the autoAcceptChildRows property is changed.
Signals inherited from QAbstractProxyModel
void	sourceModelChanged (QPrivateSignal)
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
	QSortFilterProxyModel (QObject *parent=nullptr)
	Constructs a sorting filter model with the given parent.
	~QSortFilterProxyModel ()
	Destroys this sorting filter model.
void	setSourceModel (QAbstractItemModel *sourceModel) override
	\reimp
QModelIndex	mapToSource (const QModelIndex &proxyIndex) const override
	Returns the source model index corresponding to the given proxyIndex from the sorting filter model.
QModelIndex	mapFromSource (const QModelIndex &sourceIndex) const override
	Returns the model index in the QSortFilterProxyModel given the sourceIndex from the source model.
QItemSelection	mapSelectionToSource (const QItemSelection &proxySelection) const override
	\reimp
QItemSelection	mapSelectionFromSource (const QItemSelection &sourceSelection) const override
	\reimp
QRegularExpression	filterRegularExpression () const
QBindable< QRegularExpression >	bindableFilterRegularExpression ()
int	filterKeyColumn () const
void	setFilterKeyColumn (int column)
QBindable< int >	bindableFilterKeyColumn ()
Qt::CaseSensitivity	filterCaseSensitivity () const
void	setFilterCaseSensitivity (Qt::CaseSensitivity cs)
QBindable< Qt::CaseSensitivity >	bindableFilterCaseSensitivity ()
Qt::CaseSensitivity	sortCaseSensitivity () const
void	setSortCaseSensitivity (Qt::CaseSensitivity cs)
QBindable< Qt::CaseSensitivity >	bindableSortCaseSensitivity ()
bool	isSortLocaleAware () const
void	setSortLocaleAware (bool on)
QBindable< bool >	bindableIsSortLocaleAware ()
int	sortColumn () const
Qt::SortOrder	sortOrder () const
bool	dynamicSortFilter () const
void	setDynamicSortFilter (bool enable)
QBindable< bool >	bindableDynamicSortFilter ()
int	sortRole () const
void	setSortRole (int role)
QBindable< int >	bindableSortRole ()
int	filterRole () const
void	setFilterRole (int role)
QBindable< int >	bindableFilterRole ()
bool	isRecursiveFilteringEnabled () const
void	setRecursiveFilteringEnabled (bool recursive)
QBindable< bool >	bindableRecursiveFilteringEnabled ()
bool	autoAcceptChildRows () const
void	setAutoAcceptChildRows (bool accept)
QBindable< bool >	bindableAutoAcceptChildRows ()
QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override
	\reimp
QModelIndex	parent (const QModelIndex &child) const override
	\reimp
QModelIndex	sibling (int row, int column, const QModelIndex &idx) const override
	\reimp
int	rowCount (const QModelIndex &parent=QModelIndex()) const override
	\reimp
int	columnCount (const QModelIndex &parent=QModelIndex()) const override
	\reimp
bool	hasChildren (const QModelIndex &parent=QModelIndex()) const override
	\reimp
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const override
	\reimp
bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
	\reimp
QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
	\reimp
bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole) override
	\reimp
QMimeData *	mimeData (const QModelIndexList &indexes) const override
	\reimp
bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override
	\reimp
bool	insertRows (int row, int count, const QModelIndex &parent=QModelIndex()) override
	\reimp
bool	insertColumns (int column, int count, const QModelIndex &parent=QModelIndex()) override
	\reimp
bool	removeRows (int row, int count, const QModelIndex &parent=QModelIndex()) override
	\reimp
bool	removeColumns (int column, int count, const QModelIndex &parent=QModelIndex()) override
	\reimp
void	fetchMore (const QModelIndex &parent) override
	\reimp
bool	canFetchMore (const QModelIndex &parent) const override
	\reimp
Qt::ItemFlags	flags (const QModelIndex &index) const override
	\reimp
QModelIndex	buddy (const QModelIndex &index) const override
	\reimp
QModelIndexList	match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith\|Qt::MatchWrap)) const override
	\reimp
QSize	span (const QModelIndex &index) const override
	\reimp
void	sort (int column, Qt::SortOrder order=Qt::AscendingOrder) override
	\reimp Sorts the model by column in the given order.
QStringList	mimeTypes () const override
	\reimp
Qt::DropActions	supportedDropActions () const override
	\reimp
QObject *	parent () const
	Returns a pointer to the parent object.
Public Member Functions inherited from QAbstractProxyModel
	QAbstractProxyModel (QObject *parent=nullptr)
	Constructs a proxy model with the given parent.
	~QAbstractProxyModel ()
	Destroys the proxy model.
QAbstractItemModel *	sourceModel () const
	Returns the model that contains the data that is available through the proxy model.
QBindable< QAbstractItemModel * >	bindableSourceModel ()
bool	submit () override
	\reimp
void	revert () override
	\reimp
QMap< int, QVariant >	itemData (const QModelIndex &index) const override
	\reimp
bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles) override
	\reimp
bool	clearItemData (const QModelIndex &index) override
	\reimp
void	sort (int column, Qt::SortOrder order=Qt::AscendingOrder) override
	\reimp
bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override
	\reimp
Qt::DropActions	supportedDragActions () const override
	\reimp
QHash< int, QByteArray >	roleNames () const override
	\reimp
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}.
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
Q_INVOKABLE	Q_REVISION (6, 4) virtual void sort(int column
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	isQmlObjectType () const
	Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
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.
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>
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>
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 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`.

Protected Member Functions
virtual bool	filterAcceptsRow (int source_row, const QModelIndex &source_parent) const
	Returns `true` if the item in the row indicated by the given source_row and source_parent should be included in the model; otherwise returns false.
virtual bool	filterAcceptsColumn (int source_column, const QModelIndex &source_parent) const
	Returns `true` if the item in the column indicated by the given source_column and source_parent should be included in the model; otherwise returns `false`.
virtual bool	lessThan (const QModelIndex &source_left, const QModelIndex &source_right) const
	Returns `true` if the value of the item referred to by the given index source_left is less than the value of the item referred to by the given index source_right, otherwise returns `false`.
void	beginFilterChange ()
void	endFilterChange (Directions directions=Direction::Both)
Protected Member Functions inherited from QAbstractProxyModel
QModelIndex	createSourceIndex (int row, int col, void *internalPtr) const
	Equivalent to calling createIndex on the source model.
	QAbstractProxyModel (QAbstractProxyModelPrivate &, 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)

Properties
QRegularExpression	filterRegularExpression
	the QRegularExpression used to filter the contents of the source model
int	filterKeyColumn
	the column where the key used to filter the contents of the source model is read from.
bool	dynamicSortFilter
	whether the proxy model is dynamically sorted and filtered whenever the contents of the source model change
Qt::CaseSensitivity	filterCaseSensitivity
	the case sensitivity of the QRegularExpression pattern used to filter the contents of the source model.
Qt::CaseSensitivity	sortCaseSensitivity
	the case sensitivity setting used for comparing strings when sorting
bool	isSortLocaleAware
	the local aware setting used for comparing strings when sorting
int	sortRole
	the item role that is used to query the source model's data when sorting items.
int	filterRole
	the item role that is used to query the source model's data when filtering items.
bool	recursiveFilteringEnabled
	whether the filter to be applied recursively on children, and for any matching child, its parents will be visible as well.
bool	autoAcceptChildRows
	if true the proxy model will not filter out children of accepted rows, even if they themselves would be filtered out otherwise.
Properties inherited from QAbstractProxyModel
QAbstractItemModel *	sourceModel
	the source model of this proxy model.
Properties inherited from QObject
QString	objectName
	the name of this object

Friends
class	QSortFilterProxyModelLessThan
class	QSortFilterProxyModelGreaterThan

Additional Inherited Members
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 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

The QSortFilterProxyModel class provides support for sorting and filtering data passed between another model and a view.

Since: 4.1

\inmodule QtCore

QSortFilterProxyModel can be used for sorting items, filtering out items, or both. The model transforms the structure of a source model by mapping the model indexes it supplies to new indexes, corresponding to different locations, for views to use. This approach allows a given source model to be restructured as far as views are concerned without requiring any transformations on the underlying data, and without duplicating the data in memory.

Let's assume that we want to sort and filter the items provided by a custom model. The code to set up the model and the view, without sorting and filtering, would look like this:

QTreeView *treeView = new QTreeView;

To add sorting and filtering support to MyItemModel, we need to create a QSortFilterProxyModel, call setSourceModel() with the MyItemModel as argument, and install the QSortFilterProxyModel on the view:

QTreeView *treeView = new QTreeView;

        MyItemModel *sourceModel = new MyItemModel(this);
        QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
 
        proxyModel->setSourceModel(sourceModel);
        treeView->setModel(proxyModel);

At this point, neither sorting nor filtering is enabled; the original data is displayed in the view. Any changes made through the QSortFilterProxyModel are applied to the original model.

The QSortFilterProxyModel acts as a wrapper for the original model. If you need to convert source \l{QModelIndex}es to sorted/filtered model indexes or vice versa, use mapToSource(), mapFromSource(), mapSelectionToSource(), and mapSelectionFromSource().

Note: By default, the model dynamically re-sorts and re-filters data whenever the original model changes. This behavior can be changed by setting the \l{QSortFilterProxyModel::dynamicSortFilter}{dynamicSortFilter} property.

The \l{itemviews/basicsortfiltermodel}{Basic Sort/Filter Model} and \l{itemviews/customsortfiltermodel}{Custom Sort/Filter Model} examples illustrate how to use QSortFilterProxyModel to perform basic sorting and filtering and how to subclass it to implement custom behavior.

Definition at line 21 of file qsortfilterproxymodel.h.

Member Enumeration Documentation

◆ Direction

enum class QSortFilterProxyModel::Direction

strong

Since: 6.10

This enum is used to specify the direction to which a custom filter applies when the filter parameters are changed.

\value Rows The filter applies to \l{filterAcceptsRow()}{rows} \value Columns The filter applies to \l{filterAcceptsColumn()}{columns} \value Both The filter applies to both rows and columns

See also: beginFilterChange(), endFilterChange()

Enumerator
Rows
Columns
Both

Definition at line 105 of file qsortfilterproxymodel.h.

Constructor & Destructor Documentation

◆ QSortFilterProxyModel()

QSortFilterProxyModel::QSortFilterProxyModel ( QObject * parent = nullptr )

explicit

Constructs a sorting filter model with the given parent.

Definition at line 2018 of file qsortfilterproxymodel.cpp.

◆ ~QSortFilterProxyModel()

QSortFilterProxyModel::~QSortFilterProxyModel ( )

Destroys this sorting filter model.

Definition at line 2029 of file qsortfilterproxymodel.cpp.

Member Function Documentation

◆ autoAcceptChildRows()

bool QSortFilterProxyModel::autoAcceptChildRows ( ) const

Definition at line 3054 of file qsortfilterproxymodel.cpp.

◆ autoAcceptChildRowsChanged

void QSortFilterProxyModel::autoAcceptChildRowsChanged ( bool autoAcceptChildRows )

signal

This signals is emitted when the value of the autoAcceptChildRows property is changed.

Since: 6.0

See also: autoAcceptChildRows

◆ beginFilterChange()

void QSortFilterProxyModel::beginFilterChange ( )

protected

Since: 6.9

Prepares a change of the filter.

This function should be called if you are implementing custom filtering (e.g. filterAcceptsRow()), and your filter parameter is about to be changed.

Once the filter has been changed, call endFilterChange() with Direction::Rows for row-filters, Direction::Columns for column-filters, or Direction::Columns|DirectionRows if both rows and columns are filtered.

See also: endFilterChange()

Definition at line 3111 of file qsortfilterproxymodel.cpp.

◆ bindableAutoAcceptChildRows()

QBindable< bool > QSortFilterProxyModel::bindableAutoAcceptChildRows ( )

Definition at line 3073 of file qsortfilterproxymodel.cpp.

◆ bindableDynamicSortFilter()

QBindable< bool > QSortFilterProxyModel::bindableDynamicSortFilter ( )

Definition at line 2907 of file qsortfilterproxymodel.cpp.

◆ bindableFilterCaseSensitivity()

QBindable< Qt::CaseSensitivity > QSortFilterProxyModel::bindableFilterCaseSensitivity ( )

Definition at line 2705 of file qsortfilterproxymodel.cpp.

◆ bindableFilterKeyColumn()

QBindable< int > QSortFilterProxyModel::bindableFilterKeyColumn ( )

Definition at line 2648 of file qsortfilterproxymodel.cpp.

◆ bindableFilterRegularExpression()

QBindable< QRegularExpression > QSortFilterProxyModel::bindableFilterRegularExpression ( )

Definition at line 2586 of file qsortfilterproxymodel.cpp.

◆ bindableFilterRole()

QBindable< int > QSortFilterProxyModel::bindableFilterRole ( )

Definition at line 2986 of file qsortfilterproxymodel.cpp.

◆ bindableIsSortLocaleAware()

QBindable< bool > QSortFilterProxyModel::bindableIsSortLocaleAware ( )

Definition at line 2785 of file qsortfilterproxymodel.cpp.

◆ bindableRecursiveFilteringEnabled()

QBindable< bool > QSortFilterProxyModel::bindableRecursiveFilteringEnabled ( )

Definition at line 3028 of file qsortfilterproxymodel.cpp.

◆ bindableSortCaseSensitivity()

QBindable< Qt::CaseSensitivity > QSortFilterProxyModel::bindableSortCaseSensitivity ( )

Definition at line 2745 of file qsortfilterproxymodel.cpp.

◆ bindableSortRole()

QBindable< int > QSortFilterProxyModel::bindableSortRole ( )

Definition at line 2946 of file qsortfilterproxymodel.cpp.

◆ buddy()

QModelIndex QSortFilterProxyModel::buddy ( const QModelIndex & index ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2477 of file qsortfilterproxymodel.cpp.

◆ canFetchMore()

bool QSortFilterProxyModel::canFetchMore ( const QModelIndex & parent ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2461 of file qsortfilterproxymodel.cpp.

◆ columnCount()

int QSortFilterProxyModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 2190 of file qsortfilterproxymodel.cpp.

◆ data()

QVariant QSortFilterProxyModel::data	(	const QModelIndex &	index,
		int	role = Qt::DisplayRole ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2222 of file qsortfilterproxymodel.cpp.

◆ dropMimeData()

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

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2323 of file qsortfilterproxymodel.cpp.

◆ dynamicSortFilter()

bool QSortFilterProxyModel::dynamicSortFilter ( ) const

Definition at line 2884 of file qsortfilterproxymodel.cpp.

◆ dynamicSortFilterChanged

void QSortFilterProxyModel::dynamicSortFilterChanged ( bool dynamicSortFilter )

signal

◆ endFilterChange()

void QSortFilterProxyModel::endFilterChange ( Directions directions = Direction::Both )

protected

Since: 6.10

Invalidates the current filtering after the filter parameter has changed.

This function should be called if you implement custom filtering (e.g. filterAcceptsRow()), and your filter parameters have changed. The directions parameter specifies whether the custom filter impacts rows, columns, or both.

Call beginFilterChange() when the filter parameter is about to change, and follow with a call to this function once the filter parameters have been changed. Call with directions set to Direction::Rows for row-filters (i.e. filterAcceptsRow() is implemented), Direction::Columns for column-filters (i.e. filterAcceptsColumn() is implemented), or {Direction::Both} if both filter functions are implemented.

Definition at line 3217 of file qsortfilterproxymodel.cpp.

◆ fetchMore()

void QSortFilterProxyModel::fetchMore ( const QModelIndex & parent )

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2453 of file qsortfilterproxymodel.cpp.

◆ filterAcceptsColumn()

bool QSortFilterProxyModel::filterAcceptsColumn	(	int	source_column,
		const QModelIndex &	source_parent ) const

protectedvirtual

Returns true if the item in the column indicated by the given source_column and source_parent should be included in the model; otherwise returns false.

Note: The default implementation always returns true. You must reimplement this method to get the described behavior.

See also: filterAcceptsRow(), setFilterFixedString(), setFilterRegularExpression(), setFilterWildcard()

Definition at line 3316 of file qsortfilterproxymodel.cpp.

◆ filterAcceptsRow()

bool QSortFilterProxyModel::filterAcceptsRow	(	int	source_row,
		const QModelIndex &	source_parent ) const

protectedvirtual

Returns true if the item in the row indicated by the given source_row and source_parent should be included in the model; otherwise returns false.

The default implementation returns true if the value held by the relevant item matches the filter string, wildcard string or regular expression.

Note: By default, the Qt::DisplayRole is used to determine if the row should be accepted or not. This can be changed by setting the \l{QSortFilterProxyModel::filterRole}{filterRole} property.

See also: filterAcceptsColumn(), setFilterFixedString(), setFilterRegularExpression(), setFilterWildcard()

Reimplemented in BookmarkTreeModel.

Definition at line 3282 of file qsortfilterproxymodel.cpp.

◆ filterCaseSensitivity()

Qt::CaseSensitivity QSortFilterProxyModel::filterCaseSensitivity ( ) const

Definition at line 2676 of file qsortfilterproxymodel.cpp.

◆ filterCaseSensitivityChanged

void QSortFilterProxyModel::filterCaseSensitivityChanged ( Qt::CaseSensitivity filterCaseSensitivity )

signal

This signal is emitted when the case sensitivity of the filter changes to filterCaseSensitivity.

Since: 5.15

◆ filterKeyColumn()

int QSortFilterProxyModel::filterKeyColumn ( ) const

Definition at line 2625 of file qsortfilterproxymodel.cpp.

◆ filterRegularExpression()

QRegularExpression QSortFilterProxyModel::filterRegularExpression ( ) const

Definition at line 2580 of file qsortfilterproxymodel.cpp.

◆ filterRole()

int QSortFilterProxyModel::filterRole ( ) const

Definition at line 2968 of file qsortfilterproxymodel.cpp.

◆ filterRoleChanged

void QSortFilterProxyModel::filterRoleChanged ( int filterRole )

signal

This signal is emitted when the filter role changes to filterRole.

Since: 5.15

◆ flags()

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

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2469 of file qsortfilterproxymodel.cpp.

◆ hasChildren()

bool QSortFilterProxyModel::hasChildren ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2203 of file qsortfilterproxymodel.cpp.

◆ headerData()

QVariant QSortFilterProxyModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = Qt::DisplayRole ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Reimplemented in ServicesProxyModel, SortedGroupsModel, SortedGroupsModel, SortedMessagesModel, and SortedMessagesModel.

Definition at line 2246 of file qsortfilterproxymodel.cpp.

◆ index()

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

overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 2129 of file qsortfilterproxymodel.cpp.

◆ insertColumns()

bool QSortFilterProxyModel::insertColumns	(	int	column,
		int	count,
		const QModelIndex &	parent = QModelIndex() )

override

\reimp

Definition at line 2352 of file qsortfilterproxymodel.cpp.

◆ insertRows()

bool QSortFilterProxyModel::insertRows	(	int	row,
		int	count,
		const QModelIndex &	parent = QModelIndex() )

override

\reimp

Definition at line 2332 of file qsortfilterproxymodel.cpp.

◆ invalidate

void QSortFilterProxyModel::invalidate ( )

slot

Since: 4.3

Invalidates the current sorting and filtering.

See also: beginFilterChange(), endFilterChange()

Definition at line 3086 of file qsortfilterproxymodel.cpp.

◆ isRecursiveFilteringEnabled()

bool QSortFilterProxyModel::isRecursiveFilteringEnabled ( ) const

Definition at line 3010 of file qsortfilterproxymodel.cpp.

◆ isSortLocaleAware()

bool QSortFilterProxyModel::isSortLocaleAware ( ) const

Definition at line 2767 of file qsortfilterproxymodel.cpp.

◆ lessThan()

bool QSortFilterProxyModel::lessThan	(	const QModelIndex &	source_left,
		const QModelIndex &	source_right ) const

protectedvirtual

Returns true if the value of the item referred to by the given index source_left is less than the value of the item referred to by the given index source_right, otherwise returns false.

This function is used as the < operator when sorting, and handles the following QVariant types:

\list

QMetaType::Int
QMetaType::UInt
QMetaType::LongLong
QMetaType::ULongLong
QMetaType::Float
QMetaType::Double
QMetaType::QChar
QMetaType::QDate
QMetaType::QTime
QMetaType::QDateTime
QMetaType::QString \endlist

Any other type will be converted to a QString using QVariant::toString().

Comparison of \l{QString}s is case sensitive by default; this can be changed using the \l {QSortFilterProxyModel::sortCaseSensitivity} {sortCaseSensitivity} property.

By default, the Qt::DisplayRole associated with the \l{QModelIndex}es is used for comparisons. This can be changed by setting the \l {QSortFilterProxyModel::sortRole} {sortRole} property.

Note: The indices passed in correspond to the source model.

See also: sortRole, sortCaseSensitivity, dynamicSortFilter

Reimplemented in ServicesProxyModel.

Definition at line 3260 of file qsortfilterproxymodel.cpp.

◆ mapFromSource()

QModelIndex QSortFilterProxyModel::mapFromSource ( const QModelIndex & sourceIndex ) const

overridevirtual

Returns the model index in the QSortFilterProxyModel given the sourceIndex from the source model.

See also: mapToSource()

Implements QAbstractProxyModel.

Definition at line 3341 of file qsortfilterproxymodel.cpp.

◆ mapSelectionFromSource()

QItemSelection QSortFilterProxyModel::mapSelectionFromSource ( const QItemSelection & sourceSelection ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 3358 of file qsortfilterproxymodel.cpp.

◆ mapSelectionToSource()

QItemSelection QSortFilterProxyModel::mapSelectionToSource ( const QItemSelection & proxySelection ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 3350 of file qsortfilterproxymodel.cpp.

◆ mapToSource()

QModelIndex QSortFilterProxyModel::mapToSource ( const QModelIndex & proxyIndex ) const

overridevirtual

Returns the source model index corresponding to the given proxyIndex from the sorting filter model.

See also: mapFromSource()

Implements QAbstractProxyModel.

Definition at line 3329 of file qsortfilterproxymodel.cpp.

◆ match()

QModelIndexList QSortFilterProxyModel::match	(	const QModelIndex &	start,
		int	role,
		const QVariant &	value,
		int	hits = 1,
		Qt::MatchFlags	flags = Qt::MatchFlags(Qt::MatchStartsWith\|Qt::MatchWrap) ) const

overridevirtual

\reimp

Reimplemented from QAbstractItemModel.

Definition at line 2492 of file qsortfilterproxymodel.cpp.

◆ mimeData()

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

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2291 of file qsortfilterproxymodel.cpp.

◆ mimeTypes()

QStringList QSortFilterProxyModel::mimeTypes ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2304 of file qsortfilterproxymodel.cpp.

◆ parent() [1/2]

QObject * QObject::parent ( ) const

inline

Returns a pointer to the parent object.

See also: children()

Definition at line 349 of file qobject.h.

◆ parent() [2/2]

QModelIndex QSortFilterProxyModel::parent ( const QModelIndex & child ) const

overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 2146 of file qsortfilterproxymodel.cpp.

◆ recursiveFilteringEnabledChanged

void QSortFilterProxyModel::recursiveFilteringEnabledChanged ( bool recursiveFilteringEnabled )

signal

This signal is emitted when the recursive filter setting is changed to recursiveFilteringEnabled.

Since: 5.15

◆ removeColumns()

bool QSortFilterProxyModel::removeColumns	(	int	column,
		int	count,
		const QModelIndex &	parent = QModelIndex() )

override

\reimp

Definition at line 2414 of file qsortfilterproxymodel.cpp.

◆ removeRows()

bool QSortFilterProxyModel::removeRows	(	int	row,
		int	count,
		const QModelIndex &	parent = QModelIndex() )

override

\reimp

Definition at line 2372 of file qsortfilterproxymodel.cpp.

◆ rowCount()

int QSortFilterProxyModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 2177 of file qsortfilterproxymodel.cpp.

◆ setAutoAcceptChildRows()

void QSortFilterProxyModel::setAutoAcceptChildRows ( bool accept )

Definition at line 3060 of file qsortfilterproxymodel.cpp.

◆ setData()

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

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2234 of file qsortfilterproxymodel.cpp.

◆ setDynamicSortFilter()

void QSortFilterProxyModel::setDynamicSortFilter ( bool enable )

Definition at line 2890 of file qsortfilterproxymodel.cpp.

◆ setFilterCaseSensitivity()

void QSortFilterProxyModel::setFilterCaseSensitivity ( Qt::CaseSensitivity cs )

Definition at line 2682 of file qsortfilterproxymodel.cpp.

◆ setFilterFixedString

void QSortFilterProxyModel::setFilterFixedString ( const QString & pattern )

slot

Sets the fixed string used to filter the contents of the source model to the given pattern.

This method will reset the regular expression options but respect case sensitivity.

Note: Calling this method updates the regular expression, thereby breaking the binding for \l filterRegularExpression. However it has no effect on the \l filterCaseSensitivity bindings.

See also: setFilterCaseSensitivity(), setFilterRegularExpression(), setFilterWildcard(), filterRegularExpression()

Definition at line 2856 of file qsortfilterproxymodel.cpp.

◆ setFilterKeyColumn()

void QSortFilterProxyModel::setFilterKeyColumn ( int column )

Definition at line 2631 of file qsortfilterproxymodel.cpp.

◆ setFilterRegularExpression [1/2]

void QSortFilterProxyModel::setFilterRegularExpression ( const QRegularExpression & regularExpression )

slot

Definition at line 2592 of file qsortfilterproxymodel.cpp.

◆ setFilterRegularExpression [2/2]

void QSortFilterProxyModel::setFilterRegularExpression ( const QString & pattern )

slot

Since: 5.12

Sets the regular expression used to filter the contents of the source model to pattern.

This method should be preferred for new code as it will use QRegularExpression internally.

This method will reset the regular expression options but respect case sensitivity.

Note: Calling this method updates the regular expression, thereby breaking the binding for \l filterRegularExpression. However it has no effect on the \l filterCaseSensitivity bindings.

See also: setFilterCaseSensitivity(), setFilterWildcard(), setFilterFixedString(), filterRegularExpression()

Definition at line 2809 of file qsortfilterproxymodel.cpp.

◆ setFilterRole()

void QSortFilterProxyModel::setFilterRole ( int role )

Definition at line 2974 of file qsortfilterproxymodel.cpp.

◆ setFilterWildcard

void QSortFilterProxyModel::setFilterWildcard ( const QString & pattern )

slot

Sets the wildcard expression used to filter the contents of the source model to the given pattern.

This method will reset the regular expression options but respect case sensitivity.

Note: Calling this method updates the regular expression, thereby breaking the binding for \l filterRegularExpression. However it has no effect on the \l filterCaseSensitivity bindings.

See also: setFilterCaseSensitivity(), setFilterRegularExpression(), setFilterFixedString(), filterRegularExpression()

Definition at line 2832 of file qsortfilterproxymodel.cpp.

◆ setHeaderData()

bool QSortFilterProxyModel::setHeaderData	(	int	section,
		Qt::Orientation	orientation,
		const QVariant &	value,
		int	role = Qt::EditRole )

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2268 of file qsortfilterproxymodel.cpp.

◆ setRecursiveFilteringEnabled()

void QSortFilterProxyModel::setRecursiveFilteringEnabled ( bool recursive )

Definition at line 3016 of file qsortfilterproxymodel.cpp.

◆ setSortCaseSensitivity()

void QSortFilterProxyModel::setSortCaseSensitivity ( Qt::CaseSensitivity cs )

Definition at line 2733 of file qsortfilterproxymodel.cpp.

◆ setSortLocaleAware()

void QSortFilterProxyModel::setSortLocaleAware ( bool on )

Definition at line 2773 of file qsortfilterproxymodel.cpp.

◆ setSortRole()

void QSortFilterProxyModel::setSortRole ( int role )

Definition at line 2935 of file qsortfilterproxymodel.cpp.

◆ setSourceModel()

void QSortFilterProxyModel::setSourceModel ( QAbstractItemModel * sourceModel )

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2039 of file qsortfilterproxymodel.cpp.

◆ sibling()

QModelIndex QSortFilterProxyModel::sibling	(	int	row,
		int	column,
		const QModelIndex &	idx ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2161 of file qsortfilterproxymodel.cpp.

◆ sort()

void QSortFilterProxyModel::sort	(	int	column,
		Qt::SortOrder	order = Qt::AscendingOrder )

override

\reimp Sorts the model by column in the given order.

If the sort column is less than zero, the model will be sorted by source model row in the given order.

See also: sortColumn()

Definition at line 2519 of file qsortfilterproxymodel.cpp.

◆ sortCaseSensitivity()

Qt::CaseSensitivity QSortFilterProxyModel::sortCaseSensitivity ( ) const

Definition at line 2727 of file qsortfilterproxymodel.cpp.

◆ sortCaseSensitivityChanged

void QSortFilterProxyModel::sortCaseSensitivityChanged ( Qt::CaseSensitivity sortCaseSensitivity )

signal

This signal is emitted when the case sensitivity for sorting changes to sortCaseSensitivity.

Since: 5.15

◆ sortColumn()

int QSortFilterProxyModel::sortColumn ( ) const

Since: 4.5

Returns: the column currently used for sorting

This returns the most recently used sort column. The default value is -1, which means that this proxy model does not sort.

See also: sort()

Definition at line 2539 of file qsortfilterproxymodel.cpp.

◆ sortLocaleAwareChanged

void QSortFilterProxyModel::sortLocaleAwareChanged ( bool sortLocaleAware )

signal

This signal is emitted when the locale aware setting changes to sortLocaleAware.

Since: 5.15

◆ sortOrder()

Qt::SortOrder QSortFilterProxyModel::sortOrder ( ) const

Since: 4.5

Returns: the order currently used for sorting

This returns the most recently used sort order. The default value is Qt::AscendingOrder.

See also: sort()

Definition at line 2554 of file qsortfilterproxymodel.cpp.

◆ sortRole()

int QSortFilterProxyModel::sortRole ( ) const

Definition at line 2929 of file qsortfilterproxymodel.cpp.

◆ sortRoleChanged

void QSortFilterProxyModel::sortRoleChanged ( int sortRole )

signal

This signal is emitted when the sort role changes to sortRole.

Since: 5.15

◆ span()

QSize QSortFilterProxyModel::span ( const QModelIndex & index ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2502 of file qsortfilterproxymodel.cpp.

◆ supportedDropActions()

Qt::DropActions QSortFilterProxyModel::supportedDropActions ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 2313 of file qsortfilterproxymodel.cpp.

◆ QSortFilterProxyModelGreaterThan

friend class QSortFilterProxyModelGreaterThan

friend

Definition at line 24 of file qsortfilterproxymodel.h.

◆ QSortFilterProxyModelLessThan

friend class QSortFilterProxyModelLessThan

friend

Definition at line 23 of file qsortfilterproxymodel.h.

Property Documentation

◆ autoAcceptChildRows

bool QSortFilterProxyModel::autoAcceptChildRows

readwrite

if true the proxy model will not filter out children of accepted rows, even if they themselves would be filtered out otherwise.

Since: 6.0

The default value is false.

See also: recursiveFilteringEnabled; filterAcceptsRow()

Definition at line 48 of file qsortfilterproxymodel.h.

◆ dynamicSortFilter

bool QSortFilterProxyModel::dynamicSortFilter

readwrite

whether the proxy model is dynamically sorted and filtered whenever the contents of the source model change

Since: 4.2

Note that you should not update the source model through the proxy model when dynamicSortFilter is true. For instance, if you set the proxy model on a QComboBox, then using functions that update the model, e.g., \l{QComboBox::}{addItem()}, will not work as expected. An alternative is to set dynamicSortFilter to false and call \l{QSortFilterProxyModel::}{sort()} after adding items to the QComboBox.

The default value is true.

See also: sortColumn()

Definition at line 31 of file qsortfilterproxymodel.h.

◆ filterCaseSensitivity

Qt::CaseSensitivity QSortFilterProxyModel::filterCaseSensitivity

readwrite

the case sensitivity of the QRegularExpression pattern used to filter the contents of the source model.

By default, the filter is case sensitive.

Note: Setting this property propagates the new case sensitivity to the \l filterRegularExpression property, and so breaks its binding. Likewise explicitly setting \l filterRegularExpression changes the current case sensitivity, thereby breaking its binding.

See also: filterRegularExpression, sortCaseSensitivity

Definition at line 33 of file qsortfilterproxymodel.h.

◆ filterKeyColumn

int QSortFilterProxyModel::filterKeyColumn

readwrite

the column where the key used to filter the contents of the source model is read from.

The default value is 0. If the value is -1, the keys will be read from all columns.

Definition at line 29 of file qsortfilterproxymodel.h.

◆ filterRegularExpression

QRegularExpression QSortFilterProxyModel::filterRegularExpression

readwrite

the QRegularExpression used to filter the contents of the source model

Since: 5.12

Setting this property through the QRegularExpression overload overwrites the current \l{QSortFilterProxyModel::filterCaseSensitivity}{filterCaseSensitivity}. By default, the QRegularExpression is an empty string matching all contents.

If no QRegularExpression or an empty string is set, everything in the source model will be accepted.

Note: Setting this property propagates the case sensitivity of the new regular expression to the \l filterCaseSensitivity property, and so breaks its binding. Likewise explicitly setting \l filterCaseSensitivity changes the case sensitivity of the current regular expression, thereby breaking its binding.

See also: filterCaseSensitivity, setFilterWildcard(), setFilterFixedString()

Definition at line 27 of file qsortfilterproxymodel.h.

◆ filterRole

int QSortFilterProxyModel::filterRole

readwrite

the item role that is used to query the source model's data when filtering items.

Since: 4.2

The default value is Qt::DisplayRole.

See also: filterAcceptsRow()

Definition at line 43 of file qsortfilterproxymodel.h.

◆ isSortLocaleAware

bool QSortFilterProxyModel::isSortLocaleAware

readwrite

the local aware setting used for comparing strings when sorting

Since: 4.3

By default, sorting is not local aware.

See also: sortCaseSensitivity, lessThan()

Definition at line 39 of file qsortfilterproxymodel.h.

◆ recursiveFilteringEnabled

bool QSortFilterProxyModel::recursiveFilteringEnabled

readwrite

whether the filter to be applied recursively on children, and for any matching child, its parents will be visible as well.

Since: 5.10

The default value is false.

See also: autoAcceptChildRows; filterAcceptsRow()

Definition at line 45 of file qsortfilterproxymodel.h.

◆ sortCaseSensitivity

Qt::CaseSensitivity QSortFilterProxyModel::sortCaseSensitivity

readwrite

the case sensitivity setting used for comparing strings when sorting

Since: 4.2

By default, sorting is case sensitive.

See also: filterCaseSensitivity, lessThan()

Definition at line 36 of file qsortfilterproxymodel.h.

◆ sortRole

int QSortFilterProxyModel::sortRole

readwrite

the item role that is used to query the source model's data when sorting items.

Since: 4.2

The default value is Qt::DisplayRole.

See also: lessThan()

Definition at line 41 of file qsortfilterproxymodel.h.

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

qtbase/src/corelib/itemmodels/qsortfilterproxymodel.h (7fee5f840fe6e968cb30a3ee8a17a170364be409)
qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp (7fee5f840fe6e968cb30a3ee8a17a170364be409)

Public Types

Public Slots

Signals

Public Member Functions

Protected Member Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Direction

Constructor & Destructor Documentation

◆ QSortFilterProxyModel()

◆ ~QSortFilterProxyModel()

Member Function Documentation

◆ autoAcceptChildRows()

◆ autoAcceptChildRowsChanged

◆ beginFilterChange()

◆ bindableAutoAcceptChildRows()

◆ bindableDynamicSortFilter()

◆ bindableFilterCaseSensitivity()

◆ bindableFilterKeyColumn()

◆ bindableFilterRegularExpression()

◆ bindableFilterRole()

◆ bindableIsSortLocaleAware()

◆ bindableRecursiveFilteringEnabled()

◆ bindableSortCaseSensitivity()

◆ bindableSortRole()

◆ buddy()

◆ canFetchMore()

◆ columnCount()

◆ data()

◆ dropMimeData()

◆ dynamicSortFilter()

◆ dynamicSortFilterChanged

◆ endFilterChange()

◆ fetchMore()

◆ filterAcceptsColumn()

◆ filterAcceptsRow()

◆ filterCaseSensitivity()

◆ filterCaseSensitivityChanged

◆ filterKeyColumn()

◆ filterRegularExpression()

◆ filterRole()

◆ filterRoleChanged

◆ flags()

◆ hasChildren()

◆ headerData()

◆ index()

◆ insertColumns()

◆ insertRows()

◆ invalidate

◆ isRecursiveFilteringEnabled()

◆ isSortLocaleAware()

◆ lessThan()

◆ mapFromSource()

◆ mapSelectionFromSource()

◆ mapSelectionToSource()

◆ mapToSource()

◆ match()

◆ mimeData()

◆ mimeTypes()

◆ parent() [1/2]

◆ parent() [2/2]

◆ recursiveFilteringEnabledChanged

◆ removeColumns()

◆ removeRows()

◆ rowCount()

◆ setAutoAcceptChildRows()

◆ setData()

◆ setDynamicSortFilter()

◆ setFilterCaseSensitivity()

◆ setFilterFixedString

◆ setFilterKeyColumn()

◆ setFilterRegularExpression [1/2]

◆ setFilterRegularExpression [2/2]

◆ setFilterRole()

◆ setFilterWildcard

◆ setHeaderData()

◆ setRecursiveFilteringEnabled()