TableModel Class Reference

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#include <model.h>

Inheritance diagram for TableModel:

Collaboration diagram for TableModel:

Public Member Functions
	TableModel (int rows=1, int columns=1, QObject *parent=nullptr)
	Constructs a table model with at least one row and one column.
int	rowCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of items in the row list as the number of rows in the model.
int	columnCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of items in the first list item as the number of columns in the model.
QVariant	data (const QModelIndex &index, int role) const override
	Returns an appropriate value for the requested data.
QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
	Returns the appropriate header string depending on the orientation of the header and the section.
Qt::ItemFlags	flags (const QModelIndex &index) const override
	Returns an appropriate value for the item's flags.
bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
	Changes an item in the model, but only if the following conditions are met:
bool	insertRows (int position, int rows, const QModelIndex &parent=QModelIndex()) override
	Inserts a number of rows into the model at the specified position.
bool	insertColumns (int position, int columns, const QModelIndex &parent=QModelIndex()) override
	Inserts a number of columns into the model at the specified position.
bool	removeRows (int position, int rows, const QModelIndex &parent=QModelIndex()) override
	Removes a number of rows from the model at the specified position.
bool	removeColumns (int position, int columns, const QModelIndex &parent=QModelIndex()) override
	Removes a number of columns from the model at the specified position.
int	rowCount (const QModelIndex &=QModelIndex()) const override
	Returns the number of rows under the given parent.
int	columnCount (const QModelIndex &=QModelIndex()) const override
	Returns the number of columns for the children of the given parent.
QVariant	data (const QModelIndex &index, int role) const override
	Returns the data stored under the given role for the item referred to by the index.
QHash< int, QByteArray >	roleNames () const override
Public Member Functions inherited from QAbstractTableModel
	QAbstractTableModel (QObject *parent=nullptr)
	Constructs an abstract table model for the given parent.
	~QAbstractTableModel ()
	Destroys the abstract table model.
QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override
	Returns the index of the data in row and column with parent.
QModelIndex	sibling (int row, int column, const QModelIndex &idx) const override
	\reimp
bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override
	\reimp
QObject *	parent () const
	Returns a pointer to the parent object.
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}.
virtual bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole)
	Sets the data for the given role and section in the header with the specified orientation to the value supplied.
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.
virtual bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles)
	Sets the role data for the item at index to the associated value in roles, for every Qt::ItemDataRole.
virtual bool	clearItemData (const QModelIndex &index)
virtual QStringList	mimeTypes () const
	Returns the list of allowed MIME types.
virtual QMimeData *	mimeData (const QModelIndexList &indexes) const
	Returns an object that contains serialized items of data corresponding to the list of indexes specified.
virtual bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const
	Returns {true} if a model can accept a drop of the data.
virtual Qt::DropActions	supportedDropActions () const
virtual Qt::DropActions	supportedDragActions () const
	Returns the actions supported by the data in this model.
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
virtual Q_INVOKABLE void	fetchMore (const QModelIndex &parent)
	Fetches any available data for the items with the parent specified by the parent index.
virtual Q_INVOKABLE bool	canFetchMore (const QModelIndex &parent) const
	Returns {true} if there is more data available for parent; otherwise returns {false}.
Q_INVOKABLE	Q_REVISION (6, 4) virtual void sort(int column
virtual QModelIndex	buddy (const QModelIndex &index) const
	Returns a model index for the buddy of the item represented by index.
virtual Q_INVOKABLE QModelIndexList	match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const
	Returns a list of indexes for the items in the column of the start index where data stored under the given role matches the specified value.
virtual QSize	span (const QModelIndex &index) const
	Returns the row and column span of the item represented by index.
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.

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
virtual bool	submit ()
	Lets the model know that it should submit cached information to permanent storage.
virtual void	revert ()
	Lets the model know that it should discard cached information.
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe
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 Member Functions inherited from QAbstractTableModel
	QAbstractTableModel (QAbstractItemModelPrivate &dd, 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)
Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr
Properties inherited from QObject
QString	objectName
	the name of this object
Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()
template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()
	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

[0]

Definition at line 11 of file model.h.

Constructor & Destructor Documentation

TableModel()

TableModel::TableModel	(	int	rows = 1,
		int	columns = 1,
		QObject *	parent = nullptr )

Constructs a table model with at least one row and one column.

Definition at line 18 of file model.cpp.

References QList< T >::append(), and qMax().

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Member Function Documentation

columnCount() [1/2]

int TableModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

inlineoverridevirtual

Returns the number of columns for the children of the given parent.

In most subclasses, the number of columns is independent of the parent.

For example:

int MyModel::columnCount(const QModelIndex &parent) const
{
    Q_UNUSED(parent);
    return 3;
}

Note

When implementing a table based model, columnCount() should return 0 when the parent is valid.

See also

rowCount()

Implements QAbstractItemModel.

Definition at line 23 of file cpp-tablemodel.h.

columnCount() [2/2]

int TableModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

Returns the number of items in the first list item as the number of columns in the model.

All rows should have the same number of columns.

Implements QAbstractItemModel.

Definition at line 48 of file model.cpp.

References QList< T >::size().

Referenced by insertRows().

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data() [1/2]

QVariant TableModel::data ( const QModelIndex & index, int role ) const

overridevirtual

Returns an appropriate value for the requested data.

If the view requests an invalid index, an invalid variant is returned. Any valid index that corresponds to a string in the list causes that string to be returned for the display role; otherwise an invalid variant is returned.

Implements QAbstractItemModel.

Definition at line 61 of file model.cpp.

References Qt::DisplayRole.

data() [2/2]

QVariant TableModel::data ( const QModelIndex & index, int role ) const

inlineoverridevirtual

Returns the data stored under the given role for the item referred to by the index.

Note

If you do not have a value to return, return an invalid (default-constructed) QVariant.

See also

Qt::ItemDataRole, setData(), headerData()

Implements QAbstractItemModel.

Definition at line 28 of file cpp-tablemodel.h.

References QString::arg(), and Qt::DisplayRole.

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flags()

Qt::ItemFlags TableModel::flags ( const QModelIndex & index ) const

overridevirtual

Returns an appropriate value for the item's flags.

Valid items are enabled, selectable, and editable.

Reimplemented from QAbstractTableModel.

Definition at line 95 of file model.cpp.

References QAbstractTableModel::flags(), Qt::ItemIsEditable, and Qt::ItemIsEnabled.

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headerData()

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

overridevirtual

Returns the appropriate header string depending on the orientation of the header and the section.

If anything other than the display role is requested, we return an invalid variant.

Reimplemented from QAbstractItemModel.

Definition at line 78 of file model.cpp.

References Qt::DisplayRole, Qt::Horizontal, and QStringLiteral.

insertColumns()

bool TableModel::insertColumns ( int position, int columns, const QModelIndex & parent = QModelIndex() )

override

Inserts a number of columns into the model at the specified position.

Each entry in the list is extended in turn with the required number of empty strings.

Definition at line 150 of file model.cpp.

References QAbstractItemModel::beginInsertColumns(), QAbstractItemModel::endInsertColumns(), QList< T >::insert(), QAbstractTableModel::parent(), position(), and rowCount().

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insertRows()

bool TableModel::insertRows ( int position, int rows, const QModelIndex & parent = QModelIndex() )

override

Inserts a number of rows into the model at the specified position.

Definition at line 128 of file model.cpp.

References QList< T >::append(), QAbstractItemModel::beginInsertRows(), columnCount(), QAbstractItemModel::endInsertRows(), QList< T >::insert(), items, QAbstractTableModel::parent(), and position().

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removeColumns()

bool TableModel::removeColumns ( int position, int columns, const QModelIndex & parent = QModelIndex() )

override

Removes a number of columns from the model at the specified position.

Each row is shortened by the number of columns specified.

Definition at line 187 of file model.cpp.

References QAbstractItemModel::beginRemoveColumns(), QAbstractItemModel::endRemoveColumns(), QAbstractTableModel::parent(), position(), QList< T >::removeAt(), and rowCount().

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removeRows()

bool TableModel::removeRows ( int position, int rows, const QModelIndex & parent = QModelIndex() )

override

Removes a number of rows from the model at the specified position.

Definition at line 170 of file model.cpp.

References QAbstractItemModel::beginRemoveRows(), QAbstractItemModel::endRemoveRows(), QAbstractTableModel::parent(), position(), and QList< T >::removeAt().

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roleNames()

QHash< int, QByteArray > TableModel::roleNames ( ) const

inlineoverridevirtual

Since

4.6

Returns the model's role names.

The default role names set by Qt are:

\table \header

• Qt Role
• QML Role Name \row
• Qt::DisplayRole
• display \row
• Qt::DecorationRole
• decoration \row
• Qt::EditRole
• edit \row
• Qt::ToolTipRole
• toolTip \row
• Qt::StatusTipRole
• statusTip \row
• Qt::WhatsThisRole
• whatsThis \endtable

Reimplemented from QAbstractItemModel.

Definition at line 40 of file cpp-tablemodel.h.

References Qt::DisplayRole.

rowCount() [1/2]

int TableModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

inlineoverridevirtual

Returns the number of rows under the given parent.

When the parent is valid it means that rowCount is returning the number of children of parent.

Note

When implementing a table based model, rowCount() should return 0 when the parent is valid.

See also

columnCount()

Implements QAbstractItemModel.

Definition at line 18 of file cpp-tablemodel.h.

rowCount() [2/2]

int TableModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

Returns the number of items in the row list as the number of rows in the model.

Implements QAbstractItemModel.

Definition at line 38 of file model.cpp.

References QList< T >::size().

Referenced by insertColumns(), and removeColumns().

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setData()

bool TableModel::setData ( const QModelIndex & index, const QVariant & value, int role = Qt::EditRole )

overridevirtual

Changes an item in the model, but only if the following conditions are met:

The index supplied is valid. The role associated with editing text is specified.

The dataChanged() signal is emitted if the item is changed.

Reimplemented from QAbstractItemModel.

Definition at line 113 of file model.cpp.

References QAbstractItemModel::dataChanged(), Qt::EditRole, and emit.

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---

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

• qtbase/src/widgets/doc/snippets/common-table-model/model.h (05fc3aef53348fb58be6308076e000825b704e58)
• qtdeclarative/src/quick/doc/snippets/qml/tableview/cpp-tablemodel.h (2e6ad03389c7914e28343ece477766ff80d6ca28)
• qtbase/src/widgets/doc/snippets/common-table-model/model.cpp (05fc3aef53348fb58be6308076e000825b704e58)