KLinkItemSelectionModel

#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 QItemSelection &selection, QItemSelectionModel::SelectionFlags command) override

void	select (const QModelIndex &index, 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 QRegExp &regExp, 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

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 (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	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
const std::unique_ptr< KLinkItemSelectionModelPrivate >	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 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)

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 );

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