KLinkItemSelectionModel Class Reference

#include <KLinkItemSelectionModel>

Inheritance diagram for KLinkItemSelectionModel:

Properties
QItemSelectionModel	linkedItemSelectionModel
Properties inherited from QItemSelectionModel
	selectedIndexes
Properties inherited from QObject
	objectName

Signals
void	linkedItemSelectionModelChanged ()

Public Member Functions
	KLinkItemSelectionModel (QAbstractItemModel *targetModel, QItemSelectionModel *linkedItemSelectionModel, QObject *parent=nullptr)
	KLinkItemSelectionModel (QObject *parent=nullptr)
QItemSelectionModel *	linkedItemSelectionModel () const
void	select (const QModelIndex &index, QItemSelectionModel::SelectionFlags command) override
void	select (const QItemSelection &selection, QItemSelectionModel::SelectionFlags command) override
void	setLinkedItemSelectionModel (QItemSelectionModel *selectionModel)
Public Member Functions inherited from QItemSelectionModel
	QItemSelectionModel (QAbstractItemModel *model)
	QItemSelectionModel (QAbstractItemModel *model, QObject *parent)
virtual void	clear ()
virtual void	clearCurrentIndex ()
void	clearSelection ()
bool	columnIntersectsSelection (int column, const QModelIndex &parent) const const
void	currentChanged (const QModelIndex &current, const QModelIndex &previous)
void	currentColumnChanged (const QModelIndex &current, const QModelIndex &previous)
QModelIndex	currentIndex () const const
void	currentRowChanged (const QModelIndex &current, const QModelIndex &previous)
bool	hasSelection () const const
bool	isColumnSelected (int column, const QModelIndex &parent) const const
bool	isRowSelected (int row, const QModelIndex &parent) const const
bool	isSelected (const QModelIndex &index) const const
QAbstractItemModel *	model ()
const QAbstractItemModel *	model () const const
void	modelChanged (QAbstractItemModel *model)
virtual void	reset ()
bool	rowIntersectsSelection (int row, const QModelIndex &parent) const const
QModelIndexList	selectedColumns (int row) const const
QModelIndexList	selectedIndexes () const const
QModelIndexList	selectedRows (int column) const const
const QItemSelection	selection () const const
void	selectionChanged (const QItemSelection &selected, const QItemSelection &deselected)
virtual void	setCurrentIndex (const QModelIndex &index, QItemSelectionModel::SelectionFlags command)
void	setModel (QAbstractItemModel *model)
Public Member Functions inherited from QObject
	QObject (QObject *parent)
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 ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
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 QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
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_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	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	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
T	qobject_cast (QObject *object)
T	qobject_cast (const QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const

Protected Attributes
std::unique_ptr< KLinkItemSelectionModelPrivate > const	d_ptr

Additional Inherited Members
Public Types inherited from QItemSelectionModel
enum	SelectionFlag
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 *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
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, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)
Public Attributes inherited from QItemSelectionModel
	Clear
	ClearAndSelect
	Columns
	Current
	Deselect
	NoUpdate
	Rows
	Select
	SelectCurrent
typedef	SelectionFlags
	Toggle
	ToggleCurrent
Public Attributes inherited from QObject
typedef	QObjectList
Protected Member Functions inherited from QItemSelectionModel
void	emitSelectionChanged (const QItemSelection &newSelection, const QItemSelection &oldSelection)
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)

Detailed Description

Makes it possible to share a selection in multiple views which do not have the same source model.

Although multiple views can share the same QItemSelectionModel, the views then need to have the same source model.

If there is a proxy model between the model and one of the views, or different proxy models in each, this class makes it possible to share the selection between the views.

Sharing a QItemSelectionModel between views on the same model is trivial

If a proxy model is used, it is no longer possible to share the QItemSelectionModel directly

A KLinkItemSelectionModel can be used to map the selection through the proxy model

QAbstractItemModel *model = getModel();

QSortFilterProxyModel *proxy = new QSortFilterProxyModel();
proxy->setSourceModel(model);

QTreeView *view1 = new QTreeView(splitter);
view1->setModel(model);

KLinkItemSelectionModel *view2SelectionModel = new KLinkItemSelectionModel( proxy, view1->selectionModel());

QTreeView *view2 = new QTreeView(splitter);
// Note that the QAbstractItemModel passed to KLinkItemSelectionModel must be the same as what is used in the view
view2->setModel(proxy);
view2->setSelectionModel( view2SelectionModel );

Arbitrarily complex proxy configurations on the same root model can be used

QAbstractItemModel *model = getModel();

QSortFilterProxyModel *proxy1 = new QSortFilterProxyModel();
proxy1->setSourceModel(model);
QSortFilterProxyModel *proxy2 = new QSortFilterProxyModel();
proxy2->setSourceModel(proxy1);
QSortFilterProxyModel *proxy3 = new QSortFilterProxyModel();
proxy3->setSourceModel(proxy2);

QTreeView *view1 = new QTreeView(splitter);
view1->setModel(proxy3);

QSortFilterProxyModel *proxy4 = new QSortFilterProxyModel();
proxy4->setSourceModel(model);
QSortFilterProxyModel *proxy5 = new QSortFilterProxyModel();
proxy5->setSourceModel(proxy4);

KLinkItemSelectionModel *view2SelectionModel = new KLinkItemSelectionModel( proxy5, view1->selectionModel());

QTreeView *view2 = new QTreeView(splitter);
// Note that the QAbstractItemModel passed to KLinkItemSelectionModel must be the same as what is used in the view
view2->setModel(proxy5);
view2->setSelectionModel( view2SelectionModel );

See also kitemmodels: tests/proxymodeltestapp/proxyitemselectionwidget.cpp.

Since

4.5

Author

Stephen Kelly steve[email protected][email protected][email protected]gmail[email protected].com

Definition at line 88 of file klinkitemselectionmodel.h.

Constructor & Destructor Documentation

KLinkItemSelectionModel::KLinkItemSelectionModel	(	QAbstractItemModel *	targetModel,
		QItemSelectionModel *	linkedItemSelectionModel,
		QObject *	parent = nullptr
	)

Constructor.

Definition at line 66 of file klinkitemselectionmodel.cpp.

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

• klinkitemselectionmodel.h
• klinkitemselectionmodel.cpp