QtGui.QItemSelectionModel Class Reference

The QItemSelectionModel class keeps track of a view's selected items. More...

Inheritance diagram for QtGui.QItemSelectionModel:

Collaboration diagram for QtGui.QItemSelectionModel:

Public Types
enum	SelectionFlag {   Clear = 1, ClearAndSelect = 3, Columns = 64, Current = 16,   Deselect = 4, NoUpdate = 0, Rows = 32, Select = 2,   SelectCurrent = 18, Toggle = 8, ToggleCurrent = 24 }
	More...

Public Member Functions
	QItemSelectionModel (QAbstractItemModel model)
	QItemSelectionModel (QAbstractItemModel model, QObject parent)
override void	CreateProxy ()
virtual void	Clear ()
new void	ClearSelection ()
new bool	ColumnIntersectsSelection (int column, QModelIndex parent)
new bool	HasSelection ()
new bool	IsColumnSelected (int column, QModelIndex parent)
new bool	IsRowSelected (int row, QModelIndex parent)
new bool	IsSelected (QModelIndex index)
new QAbstractItemModel	Model ()
virtual void	Reset ()
new bool	RowIntersectsSelection (int row, QModelIndex parent)
virtual void	Select (QModelIndex index, QItemSelectionModel.SelectionFlag command)
virtual void	Select (QItemSelection selection, QItemSelectionModel.SelectionFlag command)
new System.Collections.Generic.List < QModelIndex >	SelectedColumns (int row=0)
new System.Collections.Generic.List < QModelIndex >	SelectedIndexes ()
new System.Collections.Generic.List < QModelIndex >	SelectedRows (int column=0)
new QItemSelection	Selection ()
new void	SetCurrentIndex (QModelIndex index, QItemSelectionModel.SelectionFlag command)
new void	Dispose ()
Public Member Functions inherited from QtCore.QObject
	QObject (QObject parent=null)
new bool	BlockSignals (bool b)
new System.Collections.Generic.List < QObject >	Children ()
new bool	Connect (QObject sender, string signal, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection)
new void	DeleteLater ()
new bool	Disconnect (QObject receiver, string member=null)
new bool	Disconnect (string signal=null, QObject receiver=null, string member=null)
new void	DumpObjectInfo ()
new void	DumpObjectTree ()
new System.Collections.Generic.List < QByteArray >	DynamicPropertyNames ()
virtual bool	OnEvent (QEvent arg1)
virtual bool	EventFilter (QObject arg1, QEvent arg2)
new bool	Inherits (string classname)
new void	InstallEventFilter (QObject arg1)
new bool	IsWidgetType ()
new void	KillTimer (int id)
new object	Property (string name)
new void	RemoveEventFilter (QObject arg1)
new bool	SetProperty (string name, object value)
new void	SetUserData (uint id, QObjectUserData data)
new bool	SignalsBlocked ()
new int	StartTimer (int interval)
new QObjectUserData	UserData (uint id)
new void	Dispose ()
Public Member Functions inherited from QtCore.Qt
delegate QTextStream	FuncQTextStreamQTextStream (QTextStream qTextStream)
delegate string	FuncStringQByteArray (QByteArray qByteArray)
delegate QByteArray	FuncQByteArrayString (string @string)
delegate void	ActionQtMsgTypeString (QtMsgType qtMsgType, string @string)
delegate QObject	FuncQObject ()

Static Public Member Functions
static string	Tr (string s, string c=null)
static string	Tr (string s, string c, int n)
static string	TrUtf8 (string s, string c=null)
static string	TrUtf8 (string s, string c, int n)
Static Public Member Functions inherited from QtCore.QObject
static bool	Connect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod method, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection)
static bool	Connect (QObject sender, string signal, QObject receiver, string member, Qt.ConnectionType arg5=Qt.ConnectionType.AutoConnection)
static bool	Disconnect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod member)
static bool	Disconnect (QObject sender, string signal, QObject receiver, string member)
static uint	RegisterUserData ()
static string	Tr (string s, string c=null)
static string	Tr (string s, string c, int n)
static string	TrUtf8 (string s, string c=null)
static string	TrUtf8 (string s, string c, int n)
Static Public Member Functions inherited from QtCore.Qt
static QDataStream	Write (QDataStream s, object p)
static QDataStream	Write (QDataStream arg1, QSizeF arg2)
static QTextStream	Write (QTextStream s, Qt.FuncQTextStreamQTextStream f)
static QDataStream	Write (QDataStream arg1, QPoint arg2)
static QDataStream	Write (QDataStream arg1, QLineF arg2)
static QDataStream	Write (QDataStream arg1, QPointF arg2)
static QDataStream	Write (QDataStream arg1, QChar arg2)
static QDataStream	Write (QDataStream arg1, QByteArray arg2)
static QDataStream	Write (QDataStream arg1, QEasingCurve arg2)
static QDataStream	Write (QDataStream arg1, QRectF arg2)
static QDataStream	Write (QDataStream arg1, QDateTime arg2)
static QDataStream	Write (QDataStream arg1, QUrl arg2)
static QDataStream	Write (QDataStream arg1, QTime arg2)
static QDataStream	Write (QDataStream arg1, QLocale arg2)
static QDataStream	Write (QDataStream arg1, QBitArray arg2)
static QDataStream	Write (QDataStream arg1, QUuid arg2)
static QDataStream	Write (QDataStream arg1, QLine arg2)
static QDataStream	Write (QDataStream arg1, QDate arg2)
static QDataStream	Write (QDataStream @out, QRegExp regExp)
static QDataStream	Write (QDataStream arg1, QRect arg2)
static QDataStream	Write (QDataStream arg1, QSize arg2)
static QDataStream	Write (QDataStream s, QVariant.Type p)
static QDataStream	Write (QDataStream arg1, string arg2)
static QDataStream	Write (QDataStream @out, System.Collections.Generic.List< string > list)
static QDataStream	Read (QDataStream arg1, QChar arg2)
static QDataStream	Read (QDataStream arg1, QLocale arg2)
static QDataStream	Read (QDataStream arg1, QRect arg2)
static QDataStream	Read (QDataStream arg1, QEasingCurve arg2)
static QDataStream	Read (QDataStream arg1, QDate arg2)
static QDataStream	Read (QDataStream arg1, QUrl arg2)
static QDataStream	Read (QDataStream arg1, QUuid arg2)
static QTextStream	Read (QTextStream s, Qt.FuncQTextStreamQTextStream f)
static QDataStream	Read (QDataStream arg1, QLineF arg2)
static QDataStream	Read (QDataStream arg1, QRectF arg2)
static QDataStream	Read (QDataStream arg1, QPointF arg2)
static QDataStream	Read (QDataStream arg1, QLine arg2)
static QDataStream	Read (QDataStream arg1, QBitArray arg2)
static QDataStream	Read (QDataStream arg1, QSize arg2)
static QDataStream	Read (QDataStream arg1, QDateTime arg2)
static QDataStream	Read (QDataStream arg1, QTime arg2)
static QDataStream	Read (QDataStream arg1, QPoint arg2)
static QDataStream	Read (QDataStream @in, QRegExp regExp)
static QDataStream	Read (QDataStream s, object p)
static QDataStream	Read (QDataStream arg1, QByteArray arg2)
static QDataStream	Read (QDataStream arg1, QSizeF arg2)
static QDataStream	Read (QDataStream arg1, string arg2)
static QDataStream	Read (QDataStream s, QVariant.Type p)
static QDataStream	Read (QDataStream @in, System.Collections.Generic.List< string > list)
static double	qAcos (double v)
static void	qAddPostRoutine (System.Action arg1)
static string	qAppName ()
static double	qAsin (double v)
static double	qAtan (double v)
static double	qAtan2 (double x, double y)
static void	qBadAlloc ()
static int	qCeil (double v)
static ushort	qChecksum (string s, uint len)
static QByteArray	qCompress (QByteArray data)
static QByteArray	qCompress (QByteArray data, int compressionLevel=-1)
static QByteArray	qCompress (Pointer< byte > data, int nbytes)
static QByteArray	qCompress (Pointer< byte > data, int nbytes, int compressionLevel=-1)
static double	qCos (double v)
static double	qExp (double v)
static double	qFabs (double v)
static double	qFastCos (double x)
static double	qFastSin (double x)
static string	qFlagLocation (string method)
static int	qFloor (double v)
static bool	qFuzzyCompare (double p1, double p2)
static bool	qFuzzyCompare (float p1, float p2)
static bool	qFuzzyIsNull (double d)
static bool	qFuzzyIsNull (float f)
static uint	qHash (QBitArray key)
static uint	qHash (QChar key)
static uint	qHash (QStringRef key)
static uint	qHash (QUrl url)
static uint	qHash (QPersistentModelIndex index)
static uint	qHash (QByteArray key)
static uint	qHash (QModelIndex index)
static uint	qHash (uint key)
static uint	qHash (sbyte key)
static uint	qHash (byte key)
static uint	qHash (short key)
static uint	qHash (NativeLong key)
static uint	qHash (ushort key)
static uint	qHash (long key)
static uint	qHash (ulong key)
static uint	qHash (int key)
static uint	qHash (string key)
static uint	qHash (NativeULong key)
static double	qInf ()
static Qt.ActionQtMsgTypeString	qInstallMsgHandler (Qt.ActionQtMsgTypeString arg1)
static int	qIntCast (float f)
static int	qIntCast (double f)
static bool	qIsFinite (double d)
static bool	qIsFinite (float f)
static bool	qIsInf (float f)
static bool	qIsInf (double d)
static bool	qIsNaN (float f)
static bool	qIsNaN (double d)
static bool	qIsNull (float f)
static bool	qIsNull (double d)
static double	qLn (double v)
static double	qPow (double x, double y)
static double	qQNaN ()
static void	qRegisterStaticPluginInstanceFunction (Qt.FuncQObject function)
static void	qRemovePostRoutine (System.Action arg1)
static int	qRound (double d)
static long	qRound64 (double d)
static double	qSNaN ()
static bool	qSharedBuild ()
static double	qSin (double v)
static double	qSqrt (double v)
static bool	qStringComparisonHelper (QStringRef s1, string s2)
static double	qTan (double v)
static QByteArray	qUncompress (QByteArray data)
static QByteArray	qUncompress (Pointer< byte > data, int nbytes)
static string	qVersion ()
static void	Qbswap_helper (Pointer< byte > src, Pointer< byte > dest, int size)
static QByteArray	Qgetenv (string varName)
static bool	Qputenv (string varName, QByteArray value)
static int	Qrand ()
static void	Qsrand (uint seed)
static int	Qstrcmp (QByteArray str1, QByteArray str2)
static int	Qstrcmp (QByteArray str1, string str2)
static int	Qstrcmp (string str1, QByteArray str2)
static int	Qstrcmp (string str1, string str2)
static Pointer< sbyte >	Qstrcpy (Pointer< sbyte > dst, string src)
static Pointer< sbyte >	Qstrdup (string arg1)
static int	Qstricmp (string arg1, string arg2)
static uint	Qstrlen (string str)
static int	Qstrncmp (string str1, string str2, uint len)
static Pointer< sbyte >	Qstrncpy (Pointer< sbyte > dst, string src, uint len)
static int	Qstrnicmp (string arg1, string arg2, uint len)
static uint	Qstrnlen (string str, uint maxlen)
static string	QtTrId (string id, int n=-1)

Protected Member Functions
	QItemSelectionModel (System.Type dummy)
new void	OnCurrentChanged (QModelIndex current, QModelIndex previous)
new void	OnCurrentColumnChanged (QModelIndex current, QModelIndex previous)
new void	OnCurrentRowChanged (QModelIndex current, QModelIndex previous)
new void	EmitSelectionChanged (QItemSelection newSelection, QItemSelection oldSelection)
new void	OnSelectionChanged (QItemSelection selected, QItemSelection deselected)
Protected Member Functions inherited from QtCore.QObject
	QObject (System.Type dummy)
virtual void	OnChildEvent (QChildEvent arg1)
virtual void	ConnectNotify (string signal)
virtual void	OnCustomEvent (QEvent arg1)
new void	OnDestroyed (QObject arg1=null)
virtual void	DisconnectNotify (string signal)
new int	Receivers (string signal)
new QObject	Sender ()
new int	SenderSignalIndex ()
virtual void	OnTimerEvent (QTimerEvent arg1)

Properties
Slot< QItemSelection, QItemSelection >	SelectionChanged
Slot< QModelIndex, QModelIndex >	CurrentChanged
Slot< QModelIndex, QModelIndex >	CurrentRowChanged
Slot< QModelIndex, QModelIndex >	CurrentColumnChanged
new QModelIndex	CurrentIndex [get]
static new QMetaObject	StaticMetaObject [get]
new IQItemSelectionModelSignals	Emit [get]
Properties inherited from QtCore.QObject
virtual EventHandler < QEventArgs< QChildEvent > >	ChildEvent
virtual EventHandler < QEventArgs< QEvent > >	CustomEvent
virtual EventHandler < QEventArgs< QEvent > >	Event
virtual EventHandler < QEventArgs< QTimerEvent > >	TimerEvent
Slot< QObject >	DestroyedQObject
Slot	Destroyed
new QObject	Parent [get, set]
virtual System.IntPtr	SmokeObject [get, set]
new string	ObjectName [get, set]
static new QMetaObject	StaticMetaObject [get]
static new QMetaObject	StaticQtMetaObject [get]
new IQObjectSignals	Emit [get]

Additional Inherited Members
Protected Attributes inherited from QtCore.QObject
object	Q_EMIT = null
SmokeInvocation	interceptor
readonly List< QEventHandler >	eventFilters = new List<QEventHandler>()

Detailed Description

The QItemSelectionModel class keeps track of a view's selected items.

A QItemSelectionModel keeps track of the selected items in a view, or in several views onto the same model. It also keeps track of the currently selected item in a view.

The QItemSelectionModel class is one of the Model/View Classes and is part of Qt's model/view framework.

The selected items are stored using ranges. Whenever you want to modify the selected items use select() and provide either a QItemSelection, or a QModelIndex and a QItemSelectionModel::SelectionFlag.

The QItemSelectionModel takes a two layer approach to selection management, dealing with both selected items that have been committed and items that are part of the current selection. The current selected items are part of the current interactive selection (for example with rubber-band selection or keyboard-shift selections).

To update the currently selected items, use the bitwise OR of QItemSelectionModel::Current and any of the other SelectionFlags. If you omit the QItemSelectionModel::Current command, a new current selection will be created, and the previous one added to the whole selection. All functions operate on both layers; for example, selectedItems() will return items from both layers.

See also Model/View Programming, QAbstractItemModel, and Chart Example.

Member Enumeration Documentation

enum QtGui.QItemSelectionModel.SelectionFlag

This enum describes the way the selection model will be updated.

Enumerator:

Clear	The complete selection will be cleared.
ClearAndSelect	A combination of Clear and Select, provided for convenience.
Columns	All indexes will be expanded to span columns.
Current	The current selection will be updated.
Deselect	All specified indexes will be deselected.
NoUpdate	No selection will be made.
Rows	All indexes will be expanded to span rows.
Select	All specified indexes will be selected.
SelectCurrent	A combination of Select and Current, provided for convenience.
Toggle	All specified indexes will be selected or deselected depending on their current state.
ToggleCurrent	A combination of Toggle and Current, provided for convenience.

Constructor & Destructor Documentation

QtGui.QItemSelectionModel.QItemSelectionModel ( System.Type  dummy )

protected

QtGui.QItemSelectionModel.QItemSelectionModel

(

QAbstractItemModel

model

)

Constructs a selection model that operates on the specified item model.

QtGui.QItemSelectionModel.QItemSelectionModel	(	QAbstractItemModel	model,
		QObject	parent
	)

Constructs a selection model that operates on the specified item model with parent.

Member Function Documentation

virtual void QtGui.QItemSelectionModel.Clear ( )

virtual

Clears the selection model. Emits selectionChanged() and currentChanged().

new void QtGui.QItemSelectionModel.ClearSelection

(

)

Clears the selection in the selection model. Emits selectionChanged().

This function was introduced in Qt 4.2.

new bool QtGui.QItemSelectionModel.ColumnIntersectsSelection	(	int	column,
		QModelIndex	parent
	)

Returns true if there are any items selected in the column with the given parent.

override void QtGui.QItemSelectionModel.CreateProxy ( )

virtual

Reimplemented from QtCore.QObject.

new void QtGui.QItemSelectionModel.Dispose

(

)

new void QtGui.QItemSelectionModel.EmitSelectionChanged ( QItemSelection  newSelection, QItemSelection  oldSelection  )

protected

Compares the two selections newSelection and oldSelection and emits selectionChanged() with the deselected and selected items.

new bool QtGui.QItemSelectionModel.HasSelection

(

)

Returns true if the selection model contains any selection ranges; otherwise returns false.

This function was introduced in Qt 4.2.

new bool QtGui.QItemSelectionModel.IsColumnSelected	(	int	column,
		QModelIndex	parent
	)

Returns true if all items are selected in the column with the given parent.

Note that this function is usually faster than calling isSelected() on all items in the same column and that unselectable items are ignored.

new bool QtGui.QItemSelectionModel.IsRowSelected	(	int	row,
		QModelIndex	parent
	)

Returns true if all items are selected in the row with the given parent.

Note that this function is usually faster than calling isSelected() on all items in the same row and that unselectable items are ignored.

new bool QtGui.QItemSelectionModel.IsSelected

(

QModelIndex

index

)

Returns true if the given model item index is selected.

new QAbstractItemModel QtGui.QItemSelectionModel.Model

(

)

Returns the item model operated on by the selection model.

new void QtGui.QItemSelectionModel.OnCurrentChanged ( QModelIndex  current, QModelIndex  previous  )

protected

This signal is emitted whenever the current item changes. The previous model item index is replaced by the current index as the selection's current item.

Note that this signal will not be emitted when the item model is reset.

See also currentIndex(), setCurrentIndex(), and selectionChanged().

new void QtGui.QItemSelectionModel.OnCurrentColumnChanged ( QModelIndex  current, QModelIndex  previous  )

protected

This signal is emitted if the current item changes and its column is different to the column of the previous current item.

Note that this signal will not be emitted when the item model is reset.

See also currentChanged(), currentRowChanged(), currentIndex(), and setCurrentIndex().

new void QtGui.QItemSelectionModel.OnCurrentRowChanged ( QModelIndex  current, QModelIndex  previous  )

protected

This signal is emitted if the current item changes and its row is different to the row of the previous current item.

Note that this signal will not be emitted when the item model is reset.

See also currentChanged(), currentColumnChanged(), currentIndex(), and setCurrentIndex().

new void QtGui.QItemSelectionModel.OnSelectionChanged ( QItemSelection  selected, QItemSelection  deselected  )

protected

This signal is emitted whenever the selection changes. The change in the selection is represented as an item selection of deselected items and an item selection of selected items.

Note the that the current index changes independently from the selection. Also note that this signal will not be emitted when the item model is reset.

See also select() and currentChanged().

virtual void QtGui.QItemSelectionModel.Reset ( )

virtual

Clears the selection model. Does not emit any signals.

new bool QtGui.QItemSelectionModel.RowIntersectsSelection	(	int	row,
		QModelIndex	parent
	)

Returns true if there are any items selected in the row with the given parent.

virtual void QtGui.QItemSelectionModel.Select ( QModelIndex  index, QItemSelectionModel.SelectionFlag  command  )

virtual

Selects the model item index using the specified command, and emits selectionChanged().

See also QItemSelectionModel::SelectionFlags.

virtual void QtGui.QItemSelectionModel.Select ( QItemSelection  selection, QItemSelectionModel.SelectionFlag  command  )

virtual

Selects the model item index using the specified command, and emits selectionChanged().

See also QItemSelectionModel::SelectionFlags.

new System.Collections.Generic.List<QModelIndex> QtGui.QItemSelectionModel.SelectedColumns

(

int

row = 0

)

Returns the indexes in the given row for columns where all rows are selected.

This function was introduced in Qt 4.2.

See also selectedIndexes() and selectedRows().

new System.Collections.Generic.List<QModelIndex> QtGui.QItemSelectionModel.SelectedIndexes

(

)

Returns a list of all selected model item indexes. The list contains no duplicates, and is not sorted.

new System.Collections.Generic.List<QModelIndex> QtGui.QItemSelectionModel.SelectedRows

(

int

column = 0

)

Returns the indexes in the given column for the rows where all columns are selected.

This function was introduced in Qt 4.2.

See also selectedIndexes() and selectedColumns().

new QItemSelection QtGui.QItemSelectionModel.Selection

(

)

Returns the selection ranges stored in the selection model.

new void QtGui.QItemSelectionModel.SetCurrentIndex	(	QModelIndex	index,
		QItemSelectionModel.SelectionFlag	command
	)

Sets the model item index to be the current item, and emits currentChanged(). The current item is used for keyboard navigation and focus indication; it is independent of any selected items, although a selected item can also be the current item.

Depending on the specified command, the index can also become part of the current selection.

See also currentIndex() and select().

static string QtGui.QItemSelectionModel.Tr ( string  s, string  c = null  )

static

static string QtGui.QItemSelectionModel.Tr ( string  s, string  c, int  n  )

static

static string QtGui.QItemSelectionModel.TrUtf8 ( string  s, string  c = null  )

static

static string QtGui.QItemSelectionModel.TrUtf8 ( string  s, string  c, int  n  )

static

Property Documentation

Slot<QModelIndex,QModelIndex> QtGui.QItemSelectionModel.CurrentChanged

addremove

This signal is emitted whenever the current item changes. The previous model item index is replaced by the current index as the selection's current item.

Note that this signal will not be emitted when the item model is reset.

See also currentIndex(), setCurrentIndex(), and selectionChanged().

Slot<QModelIndex,QModelIndex> QtGui.QItemSelectionModel.CurrentColumnChanged

addremove

This signal is emitted if the current item changes and its column is different to the column of the previous current item.

Note that this signal will not be emitted when the item model is reset.

See also currentChanged(), currentRowChanged(), currentIndex(), and setCurrentIndex().

new QModelIndex QtGui.QItemSelectionModel.CurrentIndex

get

Returns the model item index for the current item, or an invalid index if there is no current item.

See also setCurrentIndex().

Slot<QModelIndex,QModelIndex> QtGui.QItemSelectionModel.CurrentRowChanged

addremove

This signal is emitted if the current item changes and its row is different to the row of the previous current item.

Note that this signal will not be emitted when the item model is reset.

See also currentChanged(), currentColumnChanged(), currentIndex(), and setCurrentIndex().

new IQItemSelectionModelSignals QtGui.QItemSelectionModel.Emit

getprotected

Slot<QItemSelection,QItemSelection> QtGui.QItemSelectionModel.SelectionChanged

addremove

This signal is emitted whenever the selection changes. The change in the selection is represented as an item selection of deselected items and an item selection of selected items.

Note the that the current index changes independently from the selection. Also note that this signal will not be emitted when the item model is reset.

See also select() and currentChanged().

new QMetaObject QtGui.QItemSelectionModel.StaticMetaObject

staticget