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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Public Member Functions | Public Attributes | List of all members
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 rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
 
void columnsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
 
void rowsAboutToBeInserted (const QModelIndex &parent, int start, int end)
 
void columnsAboutToBeInserted (const QModelIndex &parent, int start, int end)
 
void layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)
 
void triggerLayoutToBeChanged ()
 
void layoutChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)
 
void triggerLayoutChanged ()
 
void modelDestroyed ()
 
void remove (QList< QItemSelectionRange > &r)
 
void finalize ()
 
void setModel (QAbstractItemModel *mod)
 
void disconnectModel ()
 
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)
 
QObjectList receiverList (const char *signal) 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
 
virtual void writeToDebugStream (QDebug &) 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< std::pair< QPersistentModelIndex, uint > > savedPersistentRowLengths
 
QList< std::pair< QPersistentModelIndex, uint > > savedPersistentCurrentRowLengths
 
bool tableSelected
 
QPersistentModelIndex tableParent
 
int tableColCount
 
int tableRowCount
 
std::array< QMetaObject::Connection, 12 > connections
 
- 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 receiveParentEvents: 1
 
uint unused: 20
 
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 27 of file qitemselectionmodel_p.h.

Constructor & Destructor Documentation

◆ QItemSelectionModelPrivate()

QItemSelectionModelPrivate::QItemSelectionModelPrivate ( )
inline

Definition at line 31 of file qitemselectionmodel_p.h.

Member Function Documentation

◆ columnsAboutToBeInserted()

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

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

Definition at line 766 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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◆ columnsAboutToBeRemoved()

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

Definition at line 729 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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◆ disconnectModel()

void QItemSelectionModelPrivate::disconnectModel ( )

Definition at line 598 of file qitemselectionmodel.cpp.

References connection, connections, and QObject::disconnect().

Referenced by initModel(), and modelDestroyed().

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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 612 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 65 of file qitemselectionmodel_p.h.

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

Referenced by columnsAboutToBeInserted(), columnsAboutToBeRemoved(), rowsAboutToBeInserted(), and rowsAboutToBeRemoved().

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◆ initModel()

void QItemSelectionModelPrivate::initModel ( QAbstractItemModel * model)

Definition at line 553 of file qitemselectionmodel.cpp.

References QAbstractItemModel::columnsAboutToBeInserted(), columnsAboutToBeInserted(), QAbstractItemModel::columnsAboutToBeMoved(), QAbstractItemModel::columnsAboutToBeRemoved(), columnsAboutToBeRemoved(), QAbstractItemModel::columnsMoved(), QObject::connect(), QObjectPrivate::connect(), connections, QObject::destroyed(), disconnectModel(), layoutAboutToBeChanged(), QAbstractItemModel::layoutAboutToBeChanged(), layoutChanged(), QAbstractItemModel::layoutChanged(), model, modelDestroyed(), QAbstractItemModel::modelReset(), QItemSelectionModel::reset(), QAbstractItemModel::rowsAboutToBeInserted(), rowsAboutToBeInserted(), QAbstractItemModel::rowsAboutToBeMoved(), QAbstractItemModel::rowsAboutToBeRemoved(), rowsAboutToBeRemoved(), QAbstractItemModel::rowsMoved(), triggerLayoutChanged(), and triggerLayoutToBeChanged().

Referenced by QItemSelectionModel::QItemSelectionModel().

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◆ layoutAboutToBeChanged()

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

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 837 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(), and triggerLayoutToBeChanged().

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◆ layoutChanged()

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

Merge the selected indexes into selection ranges again.

Definition at line 1003 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(), and triggerLayoutChanged().

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◆ modelChanged()

void QItemSelectionModelPrivate::modelChanged ( QAbstractItemModel * mod)
inline

Definition at line 74 of file qitemselectionmodel_p.h.

References emit.

◆ modelDestroyed()

void QItemSelectionModelPrivate::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();
QItemSelectionModel::bindableModel
QBindable< QAbstractItemModel * > bindableModel()
Definition qitemselectionmodel.cpp:1875

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 1087 of file qitemselectionmodel.cpp.

References disconnectModel(), and model.

Referenced by initModel().

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◆ 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 58 of file qitemselectionmodel_p.h.

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

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◆ rowsAboutToBeInserted()

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

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

Definition at line 796 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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◆ rowsAboutToBeRemoved()

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

Definition at line 646 of file qitemselectionmodel.cpp.

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

Referenced by initModel().

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◆ setModel()

void QItemSelectionModelPrivate::setModel ( QAbstractItemModel * mod)
inline

Definition at line 72 of file qitemselectionmodel_p.h.

◆ triggerLayoutChanged()

void QItemSelectionModelPrivate::triggerLayoutChanged ( )
inline

Definition at line 51 of file qitemselectionmodel_p.h.

References layoutChanged(), and QAbstractItemModel::NoLayoutChangeHint.

Referenced by initModel().

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◆ triggerLayoutToBeChanged()

void QItemSelectionModelPrivate::triggerLayoutToBeChanged ( )
inline

Definition at line 45 of file qitemselectionmodel_p.h.

References layoutAboutToBeChanged(), and QAbstractItemModel::NoLayoutChangeHint.

Referenced by initModel().

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Member Data Documentation

◆ connections

std::array<QMetaObject::Connection, 12> QItemSelectionModelPrivate::connections

Definition at line 91 of file qitemselectionmodel_p.h.

Referenced by disconnectModel(), and initModel().

◆ currentCommand

QItemSelectionModel::SelectionFlags QItemSelectionModelPrivate::currentCommand

Definition at line 82 of file qitemselectionmodel_p.h.

Referenced by finalize().

◆ currentIndex

QPersistentModelIndex QItemSelectionModelPrivate::currentIndex

Definition at line 81 of file qitemselectionmodel_p.h.

Referenced by columnsAboutToBeRemoved(), and rowsAboutToBeRemoved().

◆ currentSelection

QItemSelection QItemSelectionModelPrivate::currentSelection

Definition at line 80 of file qitemselectionmodel_p.h.

Referenced by finalize(), layoutAboutToBeChanged(), and layoutChanged().

◆ savedPersistentCurrentIndexes

QList<QPersistentModelIndex> QItemSelectionModelPrivate::savedPersistentCurrentIndexes

Definition at line 84 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ savedPersistentCurrentRowLengths

QList<std::pair<QPersistentModelIndex, uint> > QItemSelectionModelPrivate::savedPersistentCurrentRowLengths

Definition at line 86 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ savedPersistentIndexes

QList<QPersistentModelIndex> QItemSelectionModelPrivate::savedPersistentIndexes

Definition at line 83 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ savedPersistentRowLengths

QList<std::pair<QPersistentModelIndex, uint> > QItemSelectionModelPrivate::savedPersistentRowLengths

Definition at line 85 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ tableColCount

int QItemSelectionModelPrivate::tableColCount

Definition at line 90 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ tableParent

QPersistentModelIndex QItemSelectionModelPrivate::tableParent

Definition at line 89 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ tableRowCount

int QItemSelectionModelPrivate::tableRowCount

Definition at line 90 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

◆ tableSelected

bool QItemSelectionModelPrivate::tableSelected

Definition at line 88 of file qitemselectionmodel_p.h.

Referenced by layoutAboutToBeChanged(), and layoutChanged().

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