KSelectionProxyModel

#include <KSelectionProxyModel>

Inheritance diagram for KSelectionProxyModel:

[legend]

Public Types
enum	FilterBehavior { SubTrees , SubTreeRoots , SubTreesWithoutRoots , ExactSelection , ChildrenOfExactSelection , InvalidBehavior }

Public Types inherited from QAbstractItemModel
enum	CheckIndexOption

enum	LayoutChangeHint

Properties
FilterBehavior	filterBehavior

QItemSelectionModel *	selectionModel

Properties inherited from QAbstractProxyModel
	sourceModel

Properties inherited from QObject
	objectName

Signals
void	filterBehaviorChanged (QPrivateSignal)

void	rootIndexAboutToBeRemoved (const QModelIndex &removeRootIndex, QPrivateSignal)

void	rootIndexAdded (const QModelIndex &newIndex, QPrivateSignal)

void	rootSelectionAboutToBeRemoved (const QItemSelection &selection, QPrivateSignal)

void	rootSelectionAdded (const QItemSelection &selection, QPrivateSignal)

void	selectionModelChanged (QPrivateSignal)

Public Member Functions
	KSelectionProxyModel ()

	KSelectionProxyModel (QItemSelectionModel selectionModel, QObject parent=nullptr)

	~KSelectionProxyModel () override

int	columnCount (const QModelIndex &=QModelIndex()) const override

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

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

FilterBehavior	filterBehavior () const

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

bool	hasChildren (const QModelIndex &parent=QModelIndex()) const override

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

QModelIndex	index (int, int, const QModelIndex &=QModelIndex()) const override

QModelIndex	mapFromSource (const QModelIndex &sourceIndex) const override

QItemSelection	mapSelectionFromSource (const QItemSelection &selection) const override

QItemSelection	mapSelectionToSource (const QItemSelection &selection) const override

QModelIndex	mapToSource (const QModelIndex &proxyIndex) const override

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

QMimeData *	mimeData (const QModelIndexList &indexes) const override

QStringList	mimeTypes () const override

QModelIndex	parent (const QModelIndex &) const override

int	rowCount (const QModelIndex &parent=QModelIndex()) const override

QItemSelectionModel *	selectionModel () const

void	setFilterBehavior (FilterBehavior behavior)

void	setSelectionModel (QItemSelectionModel *selectionModel)

void	setSourceModel (QAbstractItemModel *sourceModel) override

Qt::DropActions	supportedDropActions () const override

Public Member Functions inherited from QAbstractProxyModel
	QAbstractProxyModel (QObject *parent)

QBindable< QAbstractItemModel * >	bindableSourceModel ()

virtual QModelIndex	buddy (const QModelIndex &index) const const override

virtual bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const const override

virtual bool	canFetchMore (const QModelIndex &parent) const const override

virtual bool	clearItemData (const QModelIndex &index) override

virtual void	fetchMore (const QModelIndex &parent) override

virtual QMap< int, QVariant >	itemData (const QModelIndex &proxyIndex) const const override

virtual void	revert () override

virtual QHash< int, QByteArray >	roleNames () const const override

virtual bool	setData (const QModelIndex &index, const QVariant &value, int role) override

virtual bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role) override

virtual bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles) override

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

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

QAbstractItemModel *	sourceModel () const const

void	sourceModelChanged ()

virtual QSize	span (const QModelIndex &index) const const override

virtual bool	submit () override

virtual Qt::DropActions	supportedDragActions () const const override

Public Member Functions inherited from QAbstractItemModel
	QAbstractItemModel (QObject *parent)

bool	checkIndex (const QModelIndex &index, CheckIndexOptions options) const const

void	columnsAboutToBeInserted (const QModelIndex &parent, int first, int last)

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

void	columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last)

void	columnsInserted (const QModelIndex &parent, int first, int last)

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

void	columnsRemoved (const QModelIndex &parent, int first, int last)

void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles)

bool	hasIndex (int row, int column, const QModelIndex &parent) const const

void	headerDataChanged (Qt::Orientation orientation, int first, int last)

bool	insertColumn (int column, const QModelIndex &parent)

virtual bool	insertColumns (int column, int count, const QModelIndex &parent)

bool	insertRow (int row, const QModelIndex &parent)

virtual bool	insertRows (int row, int count, const QModelIndex &parent)

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

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

void	modelAboutToBeReset ()

void	modelReset ()

bool	moveColumn (const QModelIndex &sourceParent, int sourceColumn, const QModelIndex &destinationParent, int destinationChild)

virtual bool	moveColumns (const QModelIndex &sourceParent, int sourceColumn, int count, const QModelIndex &destinationParent, int destinationChild)

bool	moveRow (const QModelIndex &sourceParent, int sourceRow, const QModelIndex &destinationParent, int destinationChild)

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

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

bool	removeColumn (int column, const QModelIndex &parent)

virtual bool	removeColumns (int column, int count, const QModelIndex &parent)

bool	removeRow (int row, const QModelIndex &parent)

virtual bool	removeRows (int row, int count, const QModelIndex &parent)

void	rowsAboutToBeInserted (const QModelIndex &parent, int start, int end)

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

void	rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last)

void	rowsInserted (const QModelIndex &parent, int first, int last)

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

void	rowsRemoved (const QModelIndex &parent, int first, int last)

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

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

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const const

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

	Q_CLASSINFO (Name, Value)

	Q_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	Q_NAMESPACE Q_NAMESPACE

	Q_NAMESPACE_EXPORT (EXPORT_MACRO)

	Q_OBJECT Q_OBJECT

	Q_PROPERTY (...)

	Q_REVISION Q_REVISION

	Q_SET_OBJECT_NAME (Object)

	Q_SIGNAL Q_SIGNAL

	Q_SIGNALS Q_SIGNALS

	Q_SLOT Q_SLOT

	Q_SLOTS Q_SLOTS

T	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

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

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

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)

QThread *	thread () const const

Protected Member Functions
QList< QPersistentModelIndex >	sourceRootIndexes () const

Protected Member Functions inherited from QAbstractProxyModel
QModelIndex	createSourceIndex (int row, int col, void *internalPtr) const const

Protected Member Functions inherited from QAbstractItemModel
void	beginInsertColumns (const QModelIndex &parent, int first, int last)

void	beginInsertRows (const QModelIndex &parent, int first, int last)

bool	beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)

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

void	beginRemoveColumns (const QModelIndex &parent, int first, int last)

void	beginRemoveRows (const QModelIndex &parent, int first, int last)

void	beginResetModel ()

void	changePersistentIndex (const QModelIndex &from, const QModelIndex &to)

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

QModelIndex	createIndex (int row, int column, const void *ptr) const const

QModelIndex	createIndex (int row, int column, quintptr id) const const

void	endInsertColumns ()

void	endInsertRows ()

void	endMoveColumns ()

void	endMoveRows ()

void	endRemoveColumns ()

void	endRemoveRows ()

void	endResetModel ()

QModelIndexList	persistentIndexList () const const

virtual void	resetInternalData ()

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

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

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

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

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Public Attributes inherited from QAbstractItemModel
typedef	CheckIndexOptions

	DoNotUseParent

	HorizontalSortHint

	IndexIsValid

	NoLayoutChangeHint

	NoOption

	ParentIsInvalid

	VerticalSortHint

Public Attributes inherited from QObject
typedef	QObjectList

Detailed Description

A Proxy Model which presents a subset of its source model to observers.

The KSelectionProxyModel is most useful as a convenience for displaying the selection in one view in another view. The selectionModel of the initial view is used to create a proxied model which is filtered based on the configuration of this class.

For example, when a user clicks a mail folder in one view in an email application, the contained emails should be displayed in another view.

This takes away the need for the developer to handle the selection between the views, including all the mapToSource, mapFromSource and setRootIndex calls.

MyModel *sourceModel = new MyModel(this);
QTreeView *leftView = new QTreeView(this);
leftView->setModel(sourceModel);
 
KSelectionProxyModel *selectionProxy = new KSelectionProxyModel(leftView->selectionModel(), this);
selectionProxy->setSourceModel(sourceModel);
 
QTreeView *rightView = new QTreeView(this);
rightView->setModel(selectionProxy);

A Selection in one view creating a model for use with another view.

The KSelectionProxyModel can handle complex selections.

Non-contiguous selection creating a new simple model in a second view.

The contents of the secondary view depends on the selection in the primary view, and the configuration of the proxy model. See KSelectionProxyModel::setFilterBehavior for the different possible configurations.

For example, if the filterBehavior is SubTrees, selecting another item in an already selected subtree has no effect.

Selecting an item and its descendant.

See the test application in tests/proxymodeltestapp to try out the valid configurations.

KSelectionProxyModel test application

Obviously, the KSelectionProxyModel may be used in a view, or further processed with other proxy models. See KAddressBook and AkonadiConsole in kdepim for examples which use a further KDescendantsProxyModel and QSortFilterProxyModel on top of a KSelectionProxyModel.

Additionally, this class can be used to programmatically choose some items from the source model to display in the view. For example, this is how the Favourite Folder View in KMail works, and is also used in unit testing.

Since: 4.4

Author: Stephen Kelly steve.nosp@m.ire@.nosp@m.gmail.nosp@m..com

Definition at line 76 of file kselectionproxymodel.h.

Member Enumeration Documentation

◆ FilterBehavior

enum KSelectionProxyModel::FilterBehavior

Definition at line 110 of file kselectionproxymodel.h.

Property Documentation

◆ filterBehavior

FilterBehavior KSelectionProxyModel::filterBehavior

readwrite

Definition at line 79 of file kselectionproxymodel.h.

◆ selectionModel

QItemSelectionModel * KSelectionProxyModel::selectionModel

readwrite

Definition at line 80 of file kselectionproxymodel.h.

Constructor & Destructor Documentation

◆ KSelectionProxyModel() [1/2]

KSelectionProxyModel::KSelectionProxyModel	(	QItemSelectionModel *	selectionModel,
		QObject *	parent = nullptr )

explicit

ctor.

selectionModel The selection model used to filter what is presented by the proxy.

Definition at line 1992 of file kselectionproxymodel.cpp.

◆ KSelectionProxyModel() [2/2]

KSelectionProxyModel::KSelectionProxyModel ( )

explicit

Default constructor.

Allow the creation of a KSelectionProxyModel in QML code. QML will assign a parent after construction.

Definition at line 1999 of file kselectionproxymodel.cpp.

◆ ~KSelectionProxyModel()

KSelectionProxyModel::~KSelectionProxyModel ( )

overridedefault

dtor

Member Function Documentation

◆ columnCount()

int KSelectionProxyModel::columnCount ( const QModelIndex & index = QModelIndex() ) const

overridevirtual

Implements QAbstractItemModel.

Definition at line 2356 of file kselectionproxymodel.cpp.

◆ data()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2283 of file kselectionproxymodel.cpp.

◆ dropMimeData()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2420 of file kselectionproxymodel.cpp.

◆ filterBehavior()

KSelectionProxyModel::FilterBehavior KSelectionProxyModel::filterBehavior ( ) const

Definition at line 2069 of file kselectionproxymodel.cpp.

◆ flags()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2270 of file kselectionproxymodel.cpp.

◆ hasChildren()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2333 of file kselectionproxymodel.cpp.

◆ headerData()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2297 of file kselectionproxymodel.cpp.

◆ index()

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

overridevirtual

Implements QAbstractItemModel.

Definition at line 2238 of file kselectionproxymodel.cpp.

◆ mapFromSource()

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

overridevirtual

Implements QAbstractProxyModel.

Definition at line 2184 of file kselectionproxymodel.cpp.

◆ mapSelectionFromSource()

QItemSelection KSelectionProxyModel::mapSelectionFromSource ( const QItemSelection & selection ) const

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2472 of file kselectionproxymodel.cpp.

◆ mapSelectionToSource()

QItemSelection KSelectionProxyModel::mapSelectionToSource ( const QItemSelection & selection ) const

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2509 of file kselectionproxymodel.cpp.

◆ mapToSource()

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

overridevirtual

Implements QAbstractProxyModel.

Definition at line 2163 of file kselectionproxymodel.cpp.

◆ match()

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

overridevirtual

Reimplemented from QAbstractItemModel.

Definition at line 2454 of file kselectionproxymodel.cpp.

◆ mimeData()

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

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2305 of file kselectionproxymodel.cpp.

◆ mimeTypes()

QStringList KSelectionProxyModel::mimeTypes ( ) const

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2317 of file kselectionproxymodel.cpp.

◆ parent()

QModelIndex KSelectionProxyModel::parent ( const QModelIndex & index ) const

overridevirtual

Implements QAbstractItemModel.

Definition at line 2257 of file kselectionproxymodel.cpp.

◆ rootIndexAboutToBeRemoved

void KSelectionProxyModel::rootIndexAboutToBeRemoved	(	const QModelIndex &	removeRootIndex,
		QPrivateSignal	)

signal

Emitted before removeRootIndex, an index in the sourceModel is removed from the root selected indexes. This may be unrelated to rows removed from the model, depending on configuration.

◆ rootIndexAdded

void KSelectionProxyModel::rootIndexAdded	(	const QModelIndex &	newIndex,
		QPrivateSignal	)

signal

Emitted when newIndex, an index in the sourceModel is added to the root selected indexes. This may be unrelated to rows inserted to the model, depending on configuration.

◆ rootSelectionAboutToBeRemoved

void KSelectionProxyModel::rootSelectionAboutToBeRemoved	(	const QItemSelection &	selection,
		QPrivateSignal	)

signal

Emitted before selection, a selection in the sourceModel, is removed from the root selection.

◆ rootSelectionAdded

void KSelectionProxyModel::rootSelectionAdded	(	const QItemSelection &	selection,
		QPrivateSignal	)

signal

Emitted after selection, a selection in the sourceModel, is added to the root selection.

◆ rowCount()

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

overridevirtual

Implements QAbstractItemModel.

Definition at line 2205 of file kselectionproxymodel.cpp.

◆ selectionModel()

QItemSelectionModel * KSelectionProxyModel::selectionModel ( ) const

Definition at line 2365 of file kselectionproxymodel.cpp.

◆ setFilterBehavior()

void KSelectionProxyModel::setFilterBehavior ( FilterBehavior behavior )

Set the filter behaviors of this model.

The filter behaviors of the model govern the content of the model based on the selection of the contained QItemSelectionModel.

See kdeui/proxymodeltestapp to try out the different proxy model behaviors.

The most useful behaviors are SubTrees, ExactSelection and ChildrenOfExactSelection.

The default behavior is SubTrees. This means that this proxy model will contain the roots of the items in the source model. Any descendants which are also selected have no additional effect. For example if the source model is like:

(root)
  - A
  - B
    - C
    - D
      - E
        - F
      - G
  - H
  - I
    - J
    - K
    - L

And A, B, C and D are selected, the proxy will contain:

(root)
  - A
  - B
    - C
    - D
      - E
        - F
      - G

That is, selecting 'D' or 'C' if 'B' is also selected has no effect. If 'B' is de-selected, then 'C' amd 'D' become top-level items:

(root)
  - A
  - C
  - D
    - E
      - F
    - G

This is the behavior used by KJots when rendering books.

If the behavior is set to SubTreeRoots, then the children of selected indexes are not part of the model. If 'A', 'B' and 'D' are selected,

(root)
  - A
  - B

Note that although 'D' is selected, it is not part of the proxy model, because its parent 'B' is already selected.

SubTreesWithoutRoots has the effect of not making the selected items part of the model, but making their children part of the model instead. If 'A', 'B' and 'I' are selected:

(root)
  - C
  - D
    - E
      - F
    - G
  - J
  - K
  - L

Note that 'A' has no children, so selecting it has no outward effect on the model.

ChildrenOfExactSelection causes the proxy model to contain the children of the selected indexes,but further descendants are omitted. Additionally, if descendants of an already selected index are selected, their children are part of the proxy model. For example, if 'A', 'B', 'D' and 'I' are selected:

(root)
  - C
  - D
  - E
  - G
  - J
  - K
  - L

This would be useful for example if showing containers (for example maildirs) in one view and their items in another. Sub-maildirs would still appear in the proxy, but could be filtered out using a QSortfilterProxyModel.

The ExactSelection behavior causes the selected items to be part of the proxy model, even if their ancestors are already selected, but children of selected items are not included.

Again, if 'A', 'B', 'D' and 'I' are selected:

(root)
  - A
  - B
  - D
  - I

This is the behavior used by the Favourite Folder View in KMail.

Definition at line 2007 of file kselectionproxymodel.cpp.

◆ setSelectionModel()

void KSelectionProxyModel::setSelectionModel ( QItemSelectionModel * selectionModel )

Definition at line 2371 of file kselectionproxymodel.cpp.

◆ setSourceModel()

void KSelectionProxyModel::setSourceModel ( QAbstractItemModel * sourceModel )

overridevirtual

reimp.

Reimplemented from QAbstractProxyModel.

Definition at line 2075 of file kselectionproxymodel.cpp.

◆ sourceRootIndexes()

QList< QPersistentModelIndex > KSelectionProxyModel::sourceRootIndexes ( ) const

protected

Definition at line 2448 of file kselectionproxymodel.cpp.

◆ supportedDropActions()

Qt::DropActions KSelectionProxyModel::supportedDropActions ( ) const

overridevirtual

Reimplemented from QAbstractProxyModel.

Definition at line 2325 of file kselectionproxymodel.cpp.

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

KDE's Doxygen guidelines are available online.

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About KItemModels

KSelectionProxyModel

Public Types

Properties

Signals

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ FilterBehavior

Property Documentation

◆ filterBehavior

◆ selectionModel

Constructor & Destructor Documentation

◆ KSelectionProxyModel() [1/2]

◆ KSelectionProxyModel() [2/2]

◆ ~KSelectionProxyModel()

Member Function Documentation

◆ columnCount()

◆ data()

◆ dropMimeData()

◆ filterBehavior()

◆ flags()

◆ hasChildren()

◆ headerData()

◆ index()

◆ mapFromSource()

◆ mapSelectionFromSource()

◆ mapSelectionToSource()

◆ mapToSource()

◆ match()

◆ mimeData()

◆ mimeTypes()

◆ parent()

◆ rootIndexAboutToBeRemoved

◆ rootIndexAdded

◆ rootSelectionAboutToBeRemoved

◆ rootSelectionAdded

◆ rowCount()

◆ selectionModel()

◆ setFilterBehavior()

◆ setSelectionModel()

◆ setSourceModel()

◆ sourceRootIndexes()

◆ supportedDropActions()