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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 | Protected Member Functions | List of all members
QIdentityProxyModel Class Reference

The QIdentityProxyModel class proxies its source model unmodified. More...

#include <qidentityproxymodel.h>

+ Inheritance diagram for QIdentityProxyModel:
+ Collaboration diagram for QIdentityProxyModel:

Public Member Functions

 QIdentityProxyModel (QObject *parent=nullptr)
 Constructs an identity model with the given parent.
 
 ~QIdentityProxyModel ()
 Destroys this identity model.
 
int columnCount (const QModelIndex &parent=QModelIndex()) const override
 \reimp
 
QModelIndex index (int row, int column, const QModelIndex &parent=QModelIndex()) const override
 \reimp
 
QModelIndex mapFromSource (const QModelIndex &sourceIndex) const override
 \reimp
 
QModelIndex mapToSource (const QModelIndex &proxyIndex) const override
 \reimp
 
QModelIndex parent (const QModelIndex &child) const override
 \reimp
 
int rowCount (const QModelIndex &parent=QModelIndex()) const override
 \reimp
 
QVariant headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
 \reimp
 
bool dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override
 \reimp
 
QModelIndex sibling (int row, int column, const QModelIndex &idx) const override
 \reimp
 
QItemSelection mapSelectionFromSource (const QItemSelection &selection) const override
 \reimp
 
QItemSelection mapSelectionToSource (const QItemSelection &selection) const override
 \reimp
 
QModelIndexList match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const override
 \reimp
 
void setSourceModel (QAbstractItemModel *sourceModel) override
 \reimp
 
bool insertColumns (int column, int count, const QModelIndex &parent=QModelIndex()) override
 \reimp
 
bool insertRows (int row, int count, const QModelIndex &parent=QModelIndex()) override
 \reimp
 
bool removeColumns (int column, int count, const QModelIndex &parent=QModelIndex()) override
 \reimp
 
bool removeRows (int row, int count, const QModelIndex &parent=QModelIndex()) override
 \reimp
 
bool moveRows (const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override
 \reimp
 
bool moveColumns (const QModelIndex &sourceParent, int sourceColumn, int count, const QModelIndex &destinationParent, int destinationChild) override
 \reimp
 
bool isHandleSourceLayoutChanges () const
 
QObject * parent () const
 Returns a pointer to the parent object.
 
- Public Member Functions inherited from QAbstractProxyModel
 QAbstractProxyModel (QObject *parent=nullptr)
 Constructs a proxy model with the given parent.
 
 ~QAbstractProxyModel ()
 Destroys the proxy model.
 
QAbstractItemModel * sourceModel () const
 Returns the model that contains the data that is available through the proxy model.
 
QBindable< QAbstractItemModel * > bindableSourceModel ()
 
bool submit () override
 \reimp
 
void revert () override
 \reimp
 
QVariant data (const QModelIndex &proxyIndex, int role=Qt::DisplayRole) const override
 \reimp
 
QMap< int, QVariant > itemData (const QModelIndex &index) const override
 \reimp
 
Qt::ItemFlags flags (const QModelIndex &index) const override
 \reimp
 
bool setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
 \reimp
 
bool setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles) override
 \reimp
 
bool setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole) override
 \reimp
 
bool clearItemData (const QModelIndex &index) override
 \reimp
 
QModelIndex buddy (const QModelIndex &index) const override
 \reimp
 
bool canFetchMore (const QModelIndex &parent) const override
 \reimp
 
void fetchMore (const QModelIndex &parent) override
 \reimp
 
void sort (int column, Qt::SortOrder order=Qt::AscendingOrder) override
 \reimp
 
QSize span (const QModelIndex &index) const override
 \reimp
 
bool hasChildren (const QModelIndex &parent=QModelIndex()) const override
 \reimp
 
QMimeData * mimeData (const QModelIndexList &indexes) const override
 \reimp
 
bool canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override
 \reimp
 
QStringList mimeTypes () const override
 \reimp
 
Qt::DropActions supportedDragActions () const override
 \reimp
 
Qt::DropActions supportedDropActions () const override
 \reimp
 
QHash< int, QByteArray > roleNames () const override
 \reimp
 
- Public Member Functions inherited from QAbstractItemModel
 QAbstractItemModel (QObject *parent=nullptr)
 Constructs an abstract item model with the given parent.
 
virtual ~QAbstractItemModel ()
 Destroys the abstract item model.
 
Q_INVOKABLE bool hasIndex (int row, int column, const QModelIndex &parent=QModelIndex()) const
 Returns {true} if the model returns a valid QModelIndex for row and column with parent, otherwise returns {false}.
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool insertRows(int row
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool insertColumns(int column
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool removeRows(int row
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool removeColumns(int column
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool moveRows(const QModelIndex &sourceParent
 
Q_INVOKABLE Q_REVISION (6, 4) virtual bool moveColumns(const QModelIndex &sourceParent
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool insertRow(int row
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool insertColumn(int column
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool removeRow(int row
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool removeColumn(int column
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool moveRow(const QModelIndex &sourceParent
 
Q_INVOKABLE Q_REVISION (6, 4) inline bool moveColumn(const QModelIndex &sourceParent
 
Q_INVOKABLE Q_REVISION (6, 4) virtual void sort(int column
 
bool checkIndex (const QModelIndex &index, CheckIndexOptions options=CheckIndexOption::NoOption) const
 
virtual void multiData (const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const
 
QObject * parent () const
 Returns a pointer to the parent object.
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
 
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
 
QString objectName () const
 
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
 
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
QBindable< QString > bindableObjectName ()
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
 
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
 
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
 
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
 
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
 
QThread * thread () const
 Returns the thread in which the object lives.
 
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
 
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 Kills the timer with timer identifier, id.
 
void killTimer (Qt::TimerId id)
 
template<typename T >
T findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
 
template<typename T >
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
 
template<typename T >
T findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
template<typename T >
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
const QObjectList & children () const
 Returns a list of child objects.
 
void setParent (QObject *parent)
 Makes the object a child of parent.
 
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
 
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
 
bool disconnect (const QObject *receiver, const char *member=nullptr) const
 
void dumpObjectTree () const
 Dumps a tree of children to the debug output.
 
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
 
bool setProperty (const char *name, QVariant &&value)
 
QVariant property (const char *name) const
 Returns the value of the object's name property.
 
QList< QByteArray > dynamicPropertyNames () const
 
QBindingStorage * bindingStorage ()
 
const QBindingStorage * bindingStorage () const
 
QObject * parent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 

Protected Member Functions

 QIdentityProxyModel (QIdentityProxyModelPrivate &dd, QObject *parent)
 
void setHandleSourceLayoutChanges (bool)
 
- Protected Member Functions inherited from QAbstractProxyModel
QModelIndex createSourceIndex (int row, int col, void *internalPtr) const
 Equivalent to calling createIndex on the source model.
 
 QAbstractProxyModel (QAbstractProxyModelPrivate &, QObject *parent)
 
- Protected Member Functions inherited from QAbstractItemModel
 QAbstractItemModel (QAbstractItemModelPrivate &dd, QObject *parent=nullptr)
 
QModelIndex createIndex (int row, int column, const void *data=nullptr) const
 Creates a model index for the given row and column with the internal pointer ptr.
 
QModelIndex createIndex (int row, int column, quintptr id) const
 Creates a model index for the given row and column with the internal identifier, id.
 
void encodeData (const QModelIndexList &indexes, QDataStream &stream) const
 
bool decodeData (int row, int column, const QModelIndex &parent, QDataStream &stream)
 
void beginInsertRows (const QModelIndex &parent, int first, int last)
 Begins a row insertion operation.
 
void endInsertRows ()
 Ends a row insertion operation.
 
void beginRemoveRows (const QModelIndex &parent, int first, int last)
 Begins a row removal operation.
 
void endRemoveRows ()
 Ends a row removal operation.
 
bool beginMoveRows (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationRow)
 
void endMoveRows ()
 Ends a row move operation.
 
void beginInsertColumns (const QModelIndex &parent, int first, int last)
 Begins a column insertion operation.
 
void endInsertColumns ()
 Ends a column insertion operation.
 
void beginRemoveColumns (const QModelIndex &parent, int first, int last)
 Begins a column removal operation.
 
void endRemoveColumns ()
 Ends a column removal operation.
 
bool beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationColumn)
 Begins a column move operation.
 
void endMoveColumns ()
 Ends a column move operation.
 
void beginResetModel ()
 Begins a model reset operation.
 
void endResetModel ()
 Completes a model reset operation.
 
void changePersistentIndex (const QModelIndex &from, const QModelIndex &to)
 Changes the QPersistentModelIndex that is equal to the given from model index to the given to model index.
 
void changePersistentIndexList (const QModelIndexList &from, const QModelIndexList &to)
 
QModelIndexList persistentIndexList () const
 
- Protected Member Functions inherited from QObject
QObject * sender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 

Additional Inherited Members

- Public Types inherited from QAbstractItemModel
enum  LayoutChangeHint { NoLayoutChangeHint , VerticalSortHint , HorizontalSortHint }
 This enum describes the way the model changes layout. More...
 
enum class  CheckIndexOption { NoOption = 0x0000 , IndexIsValid = 0x0001 , DoNotUseParent = 0x0002 , ParentIsInvalid = 0x0004 }
 
- Public Slots inherited from QAbstractItemModel
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Signals inherited from QAbstractProxyModel
void sourceModelChanged (QPrivateSignal)
 
- Signals inherited from QAbstractItemModel
void dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles=QList< int >())
 This signal is emitted whenever the data in an existing item changes.
 
void headerDataChanged (Qt::Orientation orientation, int first, int last)
 This signal is emitted whenever a header is changed.
 
void layoutChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)
 
void layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint)
 
void rowsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted just before rows are inserted into the model.
 
void rowsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted after rows have been inserted into the model.
 
void rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted just before rows are removed from the model.
 
void rowsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted after rows have been removed from the model.
 
void columnsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted just before columns are inserted into the model.
 
void columnsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted after columns have been inserted into the model.
 
void columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted just before columns are removed from the model.
 
void columnsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal)
 This signal is emitted after columns have been removed from the model.
 
void modelAboutToBeReset (QPrivateSignal)
 
void modelReset (QPrivateSignal)
 
void rowsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal)
 
void rowsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal)
 
void columnsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, QPrivateSignal)
 
void columnsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, QPrivateSignal)
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 
- Public Attributes inherited from QAbstractItemModel
Q_INVOKABLE int count
 
Q_INVOKABLE int const QModelIndex & parent = QModelIndex())
 Returns the parent of the model item with the given index.
 
Q_INVOKABLE int sourceRow
 
Q_INVOKABLE int int count
 
Q_INVOKABLE int int const QModelIndex & destinationParent
 
Q_INVOKABLE int int const QModelIndex int destinationChild
 
Q_INVOKABLE int sourceColumn
 
Q_INVOKABLE const QModelIndex & parent = QModelIndex())
 
Q_INVOKABLE int const QModelIndex & destinationParent
 
Q_INVOKABLE int const QModelIndex int destinationChild
 
Q_INVOKABLE Qt::SortOrder order = Qt::AscendingOrder)
 
- Protected Slots inherited from QAbstractItemModel
virtual void resetInternalData ()
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectData > d_ptr
 
- Properties inherited from QAbstractProxyModel
QAbstractItemModel * sourceModel
 the source model of this proxy model.
 
- Properties inherited from QObject
QString objectName
 the name of this object
 
- Related Symbols inherited from QObject
 Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
 
 
 
 \macro Q_CLASSINFO(Name, Value)
 

Detailed Description

The QIdentityProxyModel class proxies its source model unmodified.

Since
4.8

\inmodule QtCore

QIdentityProxyModel can be used to forward the structure of a source model exactly, with no sorting, filtering or other transformation. This is similar in concept to an identity matrix where A.I = A.

Because it does no sorting or filtering, this class is most suitable to proxy models which transform the data() of the source model. For example, a proxy model could be created to define the font used, or the background colour, or the tooltip etc. This removes the need to implement all data handling in the same class that creates the structure of the model, and can also be used to create re-usable components.

This also provides a way to change the data in the case where a source model is supplied by a third party which cannot be modified.

class DateFormatProxyModel : public QIdentityProxyModel
{
// ...
void setDateFormatString(const QString &formatString)
{
m_formatString = formatString;
}
QVariant data(const QModelIndex &index, int role) const override
{
if (role != Qt::DisplayRole)
return QIdentityProxyModel::data(index, role);
const QDateTime dateTime = sourceModel()->data(SourceClass::DateRole).toDateTime();
return dateTime.toString(m_formatString);
}
QMap<int, QVariant> itemData(const QModelIndex &proxyIndex) const override
{
QMap<int, QVariant> map = QIdentityProxyModel::itemData(proxyIndex);
map[Qt::DisplayRole] = data(proxyIndex);
return map;
}
private:
QString m_formatString;
};
DateFormatProxyModel::itemData
QMap< int, QVariant > itemData(const QModelIndex &proxyIndex) const override
Returns a map with values for all predefined roles in the model for the item at the given index.
Definition src_gui_itemviews_qidentityproxymodel.cpp:23
QAbstractItemModel::itemData
virtual QMap< int, QVariant > itemData(const QModelIndex &index) const
Returns a map with values for all predefined roles in the model for the item at the given index.
Definition qabstractitemmodel.cpp:2013
QAbstractItemModel::data
virtual Q_INVOKABLE QVariant data(const QModelIndex &index, int role=Qt::DisplayRole) const =0
Returns the data stored under the given role for the item referred to by the index.
QAbstractProxyModel::sourceModel
QAbstractItemModel * sourceModel
the source model of this proxy model.
Definition qabstractproxymodel.h:20
QIdentityProxyModel
The QIdentityProxyModel class proxies its source model unmodified.
Definition qidentityproxymodel.h:18
QTest::formatString
char * formatString(const char *prefix, const char *suffix, size_t numArguments,...)
Definition qtestcase.cpp:1439
See also
QAbstractProxyModel, {Model/View Programming}, QAbstractItemModel

Definition at line 17 of file qidentityproxymodel.h.

Constructor & Destructor Documentation

◆ QIdentityProxyModel() [1/2]

QIdentityProxyModel::QIdentityProxyModel ( QObject * parent = nullptr)
explicit

Constructs an identity model with the given parent.

Definition at line 38 of file qidentityproxymodel.cpp.

◆ ~QIdentityProxyModel()

QIdentityProxyModel::~QIdentityProxyModel ( )

Destroys this identity model.

Definition at line 56 of file qidentityproxymodel.cpp.

◆ QIdentityProxyModel() [2/2]

QIdentityProxyModel::QIdentityProxyModel ( QIdentityProxyModelPrivate & dd,
QObject * parent )
protected

Definition at line 47 of file qidentityproxymodel.cpp.

Member Function Documentation

◆ columnCount()

int QIdentityProxyModel::columnCount ( const QModelIndex & parent = QModelIndex()) const
overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 63 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ dropMimeData()

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

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 73 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ headerData()

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

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 280 of file qidentityproxymodel.cpp.

References d.

◆ index()

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

\reimp

Implements QAbstractItemModel.

Definition at line 83 of file qidentityproxymodel.cpp.

References d, mapFromSource(), mapToSource(), QModelIndex::model(), parent(), and Q_ASSERT.

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◆ insertColumns()

bool QIdentityProxyModel::insertColumns ( int column,
int count,
const QModelIndex & parent = QModelIndex() )
override

\reimp

Definition at line 104 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ insertRows()

bool QIdentityProxyModel::insertRows ( int row,
int count,
const QModelIndex & parent = QModelIndex() )
override

\reimp

Definition at line 114 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ isHandleSourceLayoutChanges()

bool QIdentityProxyModel::isHandleSourceLayoutChanges ( ) const
Since
6.7

Returns true if this proxy model handles the source model layout changes, otherwise returns false.

Definition at line 379 of file qidentityproxymodel.cpp.

◆ mapFromSource()

QModelIndex QIdentityProxyModel::mapFromSource ( const QModelIndex & sourceIndex) const
overridevirtual

\reimp

Implements QAbstractProxyModel.

Definition at line 124 of file qidentityproxymodel.cpp.

References QAbstractItemModel::createIndex(), d, and Q_ASSERT.

Referenced by index(), mapSelectionFromSource(), match(), parent(), and sibling().

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◆ mapSelectionFromSource()

QItemSelection QIdentityProxyModel::mapSelectionFromSource ( const QItemSelection & selection) const
overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 137 of file qidentityproxymodel.cpp.

References QList< T >::constBegin(), QList< T >::constEnd(), d, it, mapFromSource(), Q_ASSERT, selection, and QList< T >::size().

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◆ mapSelectionToSource()

QItemSelection QIdentityProxyModel::mapSelectionToSource ( const QItemSelection & selection) const
overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 160 of file qidentityproxymodel.cpp.

References QList< T >::constBegin(), QList< T >::constEnd(), d, it, mapToSource(), Q_ASSERT, selection, and QList< T >::size().

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◆ mapToSource()

QModelIndex QIdentityProxyModel::mapToSource ( const QModelIndex & proxyIndex) const
overridevirtual

\reimp

Implements QAbstractProxyModel.

Definition at line 183 of file qidentityproxymodel.cpp.

References QAbstractProxyModel::createSourceIndex(), d, and Q_ASSERT.

Referenced by columnCount(), dropMimeData(), index(), insertColumns(), insertRows(), mapSelectionToSource(), match(), moveColumns(), moveRows(), parent(), removeColumns(), removeRows(), rowCount(), and sibling().

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◆ match()

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

\reimp

Reimplemented from QAbstractItemModel.

Definition at line 195 of file qidentityproxymodel.cpp.

References QList< T >::append(), QSet< T >::constBegin(), d, it, mapFromSource(), mapToSource(), Q_ASSERT, and QList< T >::reserve().

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◆ moveColumns()

bool QIdentityProxyModel::moveColumns ( const QModelIndex & sourceParent,
int sourceColumn,
int count,
const QModelIndex & destinationParent,
int destinationChild )
override

\reimp

Since
5.15

Definition at line 259 of file qidentityproxymodel.cpp.

References d, QAbstractItemModel::destinationChild, QAbstractItemModel::destinationParent, QModelIndex::isValid(), mapToSource(), QModelIndex::model(), Q_ASSERT, and QAbstractItemModel::sourceColumn.

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◆ moveRows()

bool QIdentityProxyModel::moveRows ( const QModelIndex & sourceParent,
int sourceRow,
int count,
const QModelIndex & destinationParent,
int destinationChild )
override

\reimp

Since
5.15

Definition at line 247 of file qidentityproxymodel.cpp.

References d, QAbstractItemModel::destinationChild, QAbstractItemModel::destinationParent, QModelIndex::isValid(), mapToSource(), QModelIndex::model(), Q_ASSERT, and QAbstractItemModel::sourceRow.

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◆ parent() [1/2]

QObject * QObject::parent ( ) const
inline

Returns a pointer to the parent object.

See also
children()

Definition at line 346 of file qobject.h.

Referenced by columnCount(), dropMimeData(), index(), insertColumns(), insertRows(), removeColumns(), removeRows(), and rowCount().

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◆ parent() [2/2]

QModelIndex QIdentityProxyModel::parent ( const QModelIndex & child) const
overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 215 of file qidentityproxymodel.cpp.

References child, mapFromSource(), mapToSource(), QModelIndex::parent(), and Q_ASSERT.

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◆ removeColumns()

bool QIdentityProxyModel::removeColumns ( int column,
int count,
const QModelIndex & parent = QModelIndex() )
override

\reimp

Definition at line 226 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ removeRows()

bool QIdentityProxyModel::removeRows ( int row,
int count,
const QModelIndex & parent = QModelIndex() )
override

\reimp

Definition at line 236 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ rowCount()

int QIdentityProxyModel::rowCount ( const QModelIndex & parent = QModelIndex()) const
overridevirtual

\reimp

Implements QAbstractItemModel.

Definition at line 270 of file qidentityproxymodel.cpp.

References d, mapToSource(), parent(), and Q_ASSERT.

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◆ setHandleSourceLayoutChanges()

void QIdentityProxyModel::setHandleSourceLayoutChanges ( bool b)
protected
Since
6.7

If b is true, this proxy model will handle the source model layout changes (by connecting to QAbstractItemModel::layoutAboutToBeChanged and QAbstractItemModel::layoutChanged singals).

The default is for this proxy model to handle the source model layout changes.

In sub-classes of QIdentityProxyModel, it may be useful to set this to false if you need to specially handle the source model layout changes.

Note
Calling this method will only have an effect after calling setSourceModel().

Definition at line 368 of file qidentityproxymodel.cpp.

◆ setSourceModel()

void QIdentityProxyModel::setSourceModel ( QAbstractItemModel * sourceModel)
overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 289 of file qidentityproxymodel.cpp.

References QAbstractItemModel::beginResetModel(), QAbstractItemModel::columnsAboutToBeInserted(), QAbstractItemModel::columnsAboutToBeMoved(), QAbstractItemModel::columnsAboutToBeRemoved(), QAbstractItemModel::columnsInserted(), QAbstractItemModel::columnsMoved(), QAbstractItemModel::columnsRemoved(), QObjectPrivate::connect(), d, QAbstractItemModel::dataChanged(), QObject::disconnect(), QAbstractItemModel::endResetModel(), QAbstractItemModel::headerDataChanged(), QAbstractItemModel::layoutAboutToBeChanged(), QAbstractItemModel::layoutChanged(), QAbstractItemModel::modelAboutToBeReset(), QAbstractItemModel::modelReset(), QAbstractItemModel::rowsAboutToBeInserted(), QAbstractItemModel::rowsAboutToBeMoved(), QAbstractItemModel::rowsAboutToBeRemoved(), QAbstractItemModel::rowsInserted(), QAbstractItemModel::rowsMoved(), QAbstractItemModel::rowsRemoved(), QAbstractProxyModel::setSourceModel(), QIdentityProxyModelPrivate::sourceColumnsAboutToBeInserted(), QIdentityProxyModelPrivate::sourceColumnsAboutToBeMoved(), QIdentityProxyModelPrivate::sourceColumnsAboutToBeRemoved(), QIdentityProxyModelPrivate::sourceColumnsInserted(), QIdentityProxyModelPrivate::sourceColumnsMoved(), QIdentityProxyModelPrivate::sourceColumnsRemoved(), QIdentityProxyModelPrivate::sourceDataChanged(), QIdentityProxyModelPrivate::sourceHeaderDataChanged(), QIdentityProxyModelPrivate::sourceLayoutAboutToBeChanged(), QIdentityProxyModelPrivate::sourceLayoutChanged(), QAbstractProxyModel::sourceModel, QIdentityProxyModelPrivate::sourceModelAboutToBeReset(), QIdentityProxyModelPrivate::sourceModelReset(), QIdentityProxyModelPrivate::sourceRowsAboutToBeInserted(), QIdentityProxyModelPrivate::sourceRowsAboutToBeMoved(), QIdentityProxyModelPrivate::sourceRowsAboutToBeRemoved(), QIdentityProxyModelPrivate::sourceRowsInserted(), QIdentityProxyModelPrivate::sourceRowsMoved(), and QIdentityProxyModelPrivate::sourceRowsRemoved().

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◆ sibling()

QModelIndex QIdentityProxyModel::sibling ( int row,
int column,
const QModelIndex & idx ) const
overridevirtual

\reimp

Reimplemented from QAbstractProxyModel.

Definition at line 95 of file qidentityproxymodel.cpp.

References d, mapFromSource(), and mapToSource().

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