QItemSelectionModelPrivate Class Reference

#include <qitemselectionmodel_p.h>

Inheritance diagram for QItemSelectionModelPrivate:

Collaboration diagram for QItemSelectionModelPrivate:

Public Member Functions
	QItemSelectionModelPrivate ()
QItemSelection	expandSelection (const QItemSelection &selection, QItemSelectionModel::SelectionFlags command) const
void	initModel (QAbstractItemModel *model)
void	_q_rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
void	_q_columnsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
void	_q_rowsAboutToBeInserted (const QModelIndex &parent, int start, int end)
void	_q_columnsAboutToBeInserted (const QModelIndex &parent, int start, int end)
void	_q_layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)
void	_q_layoutChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)
void	_q_modelDestroyed ()
void	remove (QList< QItemSelectionRange > &r)
void	finalize ()
void	setModel (QAbstractItemModel *mod)
void	modelChanged (QAbstractItemModel *mod)
	Q_OBJECT_COMPAT_PROPERTY_WITH_ARGS (QItemSelectionModelPrivate, QAbstractItemModel *, model, &QItemSelectionModelPrivate::setModel, &QItemSelectionModelPrivate::modelChanged, nullptr) QItemSelection ranges
Public Member Functions inherited from QObjectPrivate
void	ensureExtraData ()
	QObjectPrivate (int version=QObjectPrivateVersion)
virtual	~QObjectPrivate ()
void	deleteChildren ()
void	clearBindingStorage ()
void	checkForIncompatibleLibraryVersion (int version) const
void	setParent_helper (QObject *)
void	moveToThread_helper ()
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData, QBindingStatus *status)
void	_q_reregisterTimers (void *pointer)
bool	isSender (const QObject *receiver, const char *signal) const
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	ensureConnectionData ()
void	addConnection (int signal, Connection *c)
int	signalIndex (const char *signalName, const QMetaObject **meta=nullptr) const
bool	isSignalConnected (uint signalIdx, bool checkDeclarative=true) const
bool	maybeSignalConnected (uint signalIndex) const
bool	isDeclarativeSignalConnected (uint signalIdx) const
void	connectNotify (const QMetaMethod &signal)
void	disconnectNotify (const QMetaMethod &signal)
void	reinitBindingStorageAfterThreadMove ()
virtual std::string	flagsForDumping () const
QtPrivate::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)
Public Member Functions inherited from QObjectData
	QObjectData ()=default
virtual	~QObjectData ()=0
QMetaObject *	dynamicMetaObject () const

Public Attributes
QItemSelection	currentSelection
QPersistentModelIndex	currentIndex
QItemSelectionModel::SelectionFlags	currentCommand
QList< QPersistentModelIndex >	savedPersistentIndexes
QList< QPersistentModelIndex >	savedPersistentCurrentIndexes
QList< QPair< QPersistentModelIndex, uint > >	savedPersistentRowLengths
QList< QPair< QPersistentModelIndex, uint > >	savedPersistentCurrentRowLengths
bool	tableSelected
QPersistentModelIndex	tableParent
int	tableColCount
int	tableRowCount
Public Attributes inherited from QObjectPrivate
ExtraData *	extraData
QAtomicPointer< QThreadData >	threadData
QAtomicPointer< ConnectionData >	connections
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
Public Attributes inherited from QObjectData
QObject *	q_ptr
QObject *	parent
QObjectList	children
uint	isWidget: 1
uint	blockSig: 1
uint	wasDeleted: 1
uint	isDeletingChildren: 1
uint	sendChildEvents: 1
uint	receiveChildEvents: 1
uint	isWindow: 1
uint	deleteLaterCalled: 1
uint	isQuickItem: 1
uint	willBeWidget: 1
uint	wasWidget: 1
uint	unused: 21
QAtomicInt	postedEvents
QDynamicMetaObjectData *	metaObject
QBindingStorage	bindingStorage

Additional Inherited Members
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
using	ConnectionDataPointer = QExplicitlySharedDataPointer< ConnectionData >
Static Public Member Functions inherited from QObjectPrivate
static bool	removeConnection (Connection *c)
static QObjectPrivate *	get (QObject *o)
static const QObjectPrivate *	get (const QObject *o)
template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot)
static QMetaObject::Connection	connectImpl (const QObject *sender, int signal_index, const QObject *receiver, void **slot, QtPrivate::QSlotObjectBase *slotObj, int type, const int *types, const QMetaObject *senderMetaObject)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static bool	disconnect (const QObject *sender, int signal_index, void **slot)
static bool	disconnect (const QObject *sender, int signal_index, const QObject *receiver, void **slot)

Detailed Description

Definition at line 26 of file qitemselectionmodel_p.h.

Constructor & Destructor Documentation

QItemSelectionModelPrivate()

QItemSelectionModelPrivate::QItemSelectionModelPrivate ( )

inline

Definition at line 30 of file qitemselectionmodel_p.h.

Member Function Documentation

_q_columnsAboutToBeInserted()

void QItemSelectionModelPrivate::_q_columnsAboutToBeInserted	(	const QModelIndex &	parent,
		int	start,
		int	end
	)

Split selection ranges if columns are about to be inserted in the middle.

Definition at line 761 of file qitemselectionmodel.cpp.

References QSet< T >::begin(), QSet< T >::end(), QSet< T >::erase(), finalize(), QAbstractTableModel::index(), it, model, QObjectData::parent, Q_UNUSED, and split().

Referenced by initModel().

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_q_columnsAboutToBeRemoved()

void QItemSelectionModelPrivate::_q_columnsAboutToBeRemoved	(	const QModelIndex &	parent,
		int	start,
		int	end
	)

Definition at line 724 of file qitemselectionmodel.cpp.

References QPersistentModelIndex::column(), currentIndex, QItemSelectionModel::Deselect, emit, finalize(), QAbstractTableModel::index(), QPersistentModelIndex::isValid(), model, QPersistentModelIndex::parent(), QObjectData::parent, QPersistentModelIndex::row(), QModelIndex::row(), and QSqlQueryModel::rowCount().

Referenced by initModel().

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_q_layoutAboutToBeChanged()

void QItemSelectionModelPrivate::_q_layoutAboutToBeChanged	(	const QList< QPersistentModelIndex > &	parents = QList<QPersistentModelIndex>(),
		QAbstractItemModel::LayoutChangeHint	hint = QAbstractItemModel::NoLayoutChangeHint
	)

Split selection into individual (persistent) indexes. This is done in preparation for the layoutChanged() signal, where the indexes can be merged again.

Definition at line 832 of file qitemselectionmodel.cpp.

References QList< T >::clear(), QSqlQueryModel::columnCount(), QList< T >::constFirst(), currentSelection, hint(), model, QObjectData::parent, QObject::parent(), qSelectionPersistentRowLengths(), QSqlQueryModel::rowCount(), savedPersistentCurrentIndexes, savedPersistentCurrentRowLengths, savedPersistentIndexes, savedPersistentRowLengths, QList< T >::size(), tableColCount, tableParent, tableRowCount, tableSelected, and QAbstractItemModel::VerticalSortHint.

Referenced by initModel().

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_q_layoutChanged()

void QItemSelectionModelPrivate::_q_layoutChanged	(	const QList< QPersistentModelIndex > &	parents = QList<QPersistentModelIndex>(),
		QAbstractItemModel::LayoutChangeHint	hint = QAbstractItemModel::NoLayoutChangeHint
	)

Merge the selected indexes into selection ranges again.

Definition at line 997 of file qitemselectionmodel.cpp.

References QList< T >::begin(), QList< T >::clear(), QSqlQueryModel::columnCount(), currentSelection, QList< T >::end(), hint(), QAbstractTableModel::index(), QList< T >::isEmpty(), mergeIndexes(), mergeRowLengths(), model, qt_PersistentModelIndexLessThan(), QSqlQueryModel::rowCount(), savedPersistentCurrentIndexes, savedPersistentCurrentRowLengths, savedPersistentIndexes, savedPersistentRowLengths, tableColCount, tableParent, tableRowCount, tableSelected, and QAbstractItemModel::VerticalSortHint.

Referenced by initModel().

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_q_modelDestroyed()

void QItemSelectionModelPrivate::_q_modelDestroyed

(

)

Called when the used model gets destroyed.

It is impossible to have a correct implementation here. In the following situation, there are two contradicting rules:

QProperty<QAbstractItemModel *> leader(mymodel);
QItemSelectionModel myItemSelectionModel;
myItemSelectionModel.bindableModel().setBinding([&](){ return leader.value(); }
delete mymodel;
QAbstractItemModel *returnedModel = myItemSelectionModel.model();

What should returnedModel be in this situation?

Rules for bindable properties say that myItemSelectionModel.model() should return the same as leader.value(), namely the pointer to the now deleted model.

However, backward compatibility requires myItemSelectionModel.model() to return a nullptr, because that was done in the past after the model used was deleted.

We decide to break the new rule, imposed by bindable properties, and not break the old rule, because that may break existing code.

Definition at line 1081 of file qitemselectionmodel.cpp.

References model.

Referenced by initModel().

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_q_rowsAboutToBeInserted()

void QItemSelectionModelPrivate::_q_rowsAboutToBeInserted	(	const QModelIndex &	parent,
		int	start,
		int	end
	)

Split selection ranges if rows are about to be inserted in the middle.

Definition at line 791 of file qitemselectionmodel.cpp.

References QSet< T >::begin(), emit, QSet< T >::end(), QSet< T >::erase(), finalize(), QAbstractTableModel::index(), it, model, QObjectData::parent, Q_UNUSED, and split().

Referenced by initModel().

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_q_rowsAboutToBeRemoved()

void QItemSelectionModelPrivate::_q_rowsAboutToBeRemoved	(	const QModelIndex &	parent,
		int	start,
		int	end
	)

Definition at line 641 of file qitemselectionmodel.cpp.

References QList< T >::append(), QSet< T >::begin(), QPersistentModelIndex::column(), QModelIndex::column(), currentIndex, emit, QSet< T >::end(), QSet< T >::erase(), finalize(), QAbstractTableModel::index(), QList< T >::isEmpty(), QPersistentModelIndex::isValid(), QModelIndex::isValid(), it, model, QModelIndex::parent(), QPersistentModelIndex::parent(), QObjectData::parent, Q_ASSERT, QPersistentModelIndex::row(), QModelIndex::row(), and QItemSelection::split().

Referenced by initModel().

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expandSelection()

QItemSelection QItemSelectionModelPrivate::expandSelection	(	const QItemSelection &	selection,
		QItemSelectionModel::SelectionFlags	command
	)		const

returns a QItemSelection where all ranges have been expanded to: Rows: left: 0 and right: columnCount()-1 Columns: top: 0 and bottom: rowCount()-1

Definition at line 607 of file qitemselectionmodel.cpp.

References QList< T >::at(), QItemSelectionRange::bottom(), QSqlQueryModel::columnCount(), QItemSelectionModel::Columns, i, QAbstractTableModel::index(), QList< T >::isEmpty(), QItemSelectionRange::left(), QItemSelection::merge(), model, QItemSelectionRange::parent(), QObjectData::parent, QItemSelectionRange::right(), QSqlQueryModel::rowCount(), QItemSelectionModel::Rows, QItemSelectionModel::Select, selection, QList< T >::size(), and QItemSelectionRange::top().

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finalize()

void QItemSelectionModelPrivate::finalize ( )

inline

Definition at line 54 of file qitemselectionmodel_p.h.

References QList< T >::clear(), currentCommand, currentSelection, and QList< T >::isEmpty().

Referenced by _q_columnsAboutToBeInserted(), _q_columnsAboutToBeRemoved(), _q_rowsAboutToBeInserted(), and _q_rowsAboutToBeRemoved().

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initModel()

void QItemSelectionModelPrivate::initModel

(

QAbstractItemModel *

model

)

Definition at line 551 of file qitemselectionmodel.cpp.

References _q_columnsAboutToBeInserted(), _q_columnsAboutToBeRemoved(), _q_layoutAboutToBeChanged(), _q_layoutChanged(), _q_modelDestroyed(), _q_rowsAboutToBeInserted(), _q_rowsAboutToBeRemoved(), QObject::connect(), QObjectPrivate::connections, QObject::disconnect(), i, model, qOffsetStringArray(), QT_STRINGIFY_SIGNAL, and QT_STRINGIFY_SLOT.

Referenced by QItemSelectionModel::QItemSelectionModel().

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modelChanged()

void QItemSelectionModelPrivate::modelChanged ( QAbstractItemModel *  mod )

inline

Definition at line 62 of file qitemselectionmodel_p.h.

Q_OBJECT_COMPAT_PROPERTY_WITH_ARGS()

QItemSelectionModelPrivate::Q_OBJECT_COMPAT_PROPERTY_WITH_ARGS	(	QItemSelectionModelPrivate	,
		QAbstractItemModel *	,
		model	,
		&QItemSelectionModelPrivate::setModel	,
		&QItemSelectionModelPrivate::modelChanged	,
		nullptr
	)

remove()

void QItemSelectionModelPrivate::remove ( QList< QItemSelectionRange > &  r )

inline

Definition at line 47 of file qitemselectionmodel_p.h.

References QSet< T >::constBegin(), QSet< T >::constEnd(), and it.

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setModel()

void QItemSelectionModelPrivate::setModel ( QAbstractItemModel *  mod )

inline

Definition at line 61 of file qitemselectionmodel_p.h.

Member Data Documentation

currentCommand

QItemSelectionModel::SelectionFlags QItemSelectionModelPrivate::currentCommand

Definition at line 70 of file qitemselectionmodel_p.h.

Referenced by finalize().

currentIndex

QPersistentModelIndex QItemSelectionModelPrivate::currentIndex

Definition at line 69 of file qitemselectionmodel_p.h.

Referenced by _q_columnsAboutToBeRemoved(), and _q_rowsAboutToBeRemoved().

currentSelection

QItemSelection QItemSelectionModelPrivate::currentSelection

Definition at line 68 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), _q_layoutChanged(), and finalize().

savedPersistentCurrentIndexes

QList<QPersistentModelIndex> QItemSelectionModelPrivate::savedPersistentCurrentIndexes

Definition at line 72 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

savedPersistentCurrentRowLengths

QList<QPair<QPersistentModelIndex, uint> > QItemSelectionModelPrivate::savedPersistentCurrentRowLengths

Definition at line 74 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

savedPersistentIndexes

QList<QPersistentModelIndex> QItemSelectionModelPrivate::savedPersistentIndexes

Definition at line 71 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

savedPersistentRowLengths

QList<QPair<QPersistentModelIndex, uint> > QItemSelectionModelPrivate::savedPersistentRowLengths

Definition at line 73 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

tableColCount

int QItemSelectionModelPrivate::tableColCount

Definition at line 78 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

tableParent

QPersistentModelIndex QItemSelectionModelPrivate::tableParent

Definition at line 77 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

tableRowCount

int QItemSelectionModelPrivate::tableRowCount

Definition at line 78 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

tableSelected

bool QItemSelectionModelPrivate::tableSelected

Definition at line 76 of file qitemselectionmodel_p.h.

Referenced by _q_layoutAboutToBeChanged(), and _q_layoutChanged().

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

• qtbase/src/corelib/itemmodels/qitemselectionmodel_p.h
• qtbase/src/corelib/itemmodels/qitemselectionmodel.cpp