QtGui.QItemDelegate Class Reference

The QItemDelegate class provides display and editing facilities for data items from a model. More...

Inheritance diagram for QtGui.QItemDelegate:

Collaboration diagram for QtGui.QItemDelegate:

Public Member Functions
	QItemDelegate (QObject parent=null)
override void	CreateProxy ()
override QWidget	CreateEditor (QWidget parent, QStyleOptionViewItem option, QModelIndex index)
override bool	OnEditorEvent (QEvent @event, QAbstractItemModel model, QStyleOptionViewItem option, QModelIndex index)
override bool	EventFilter (QObject @object, QEvent @event)
override void	Paint (QPainter painter, QStyleOptionViewItem option, QModelIndex index)
override void	SetEditorData (QWidget editor, QModelIndex index)
override void	SetModelData (QWidget editor, QAbstractItemModel model, QModelIndex index)
override QSize	SizeHint (QStyleOptionViewItem option, QModelIndex index)
override void	UpdateEditorGeometry (QWidget editor, QStyleOptionViewItem option, QModelIndex index)
new void	Dispose ()
Public Member Functions inherited from QtGui.QAbstractItemDelegate
	QAbstractItemDelegate (QObject parent=null)
new bool	OnHelpEvent (QHelpEvent @event, QAbstractItemView view, QStyleOptionViewItem option, QModelIndex index)
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 QtGui.QAbstractItemDelegate
static string	ElidedText (QFontMetrics fontMetrics, int width, Qt.TextElideMode mode, string text)
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
	QItemDelegate (System.Type dummy)
new QRect	Check (QStyleOptionViewItem option, QRect bounding, object variant)
new QPixmap	Decoration (QStyleOptionViewItem option, object variant)
new void	DoLayout (QStyleOptionViewItem option, QRect checkRect, QRect iconRect, QRect textRect, bool hint)
new void	DrawBackground (QPainter painter, QStyleOptionViewItem option, QModelIndex index)
virtual void	DrawCheck (QPainter painter, QStyleOptionViewItem option, QRect rect, Qt.CheckState state)
virtual void	DrawDecoration (QPainter painter, QStyleOptionViewItem option, QRect rect, QPixmap pixmap)
virtual void	DrawDisplay (QPainter painter, QStyleOptionViewItem option, QRect rect, string text)
virtual void	DrawFocus (QPainter painter, QStyleOptionViewItem option, QRect rect)
new QRect	Rect (QStyleOptionViewItem option, QModelIndex index, int role)
new QPixmap	Selected (QPixmap pixmap, QPalette palette, bool enabled)
new QStyleOptionViewItem	SetOptions (QModelIndex index, QStyleOptionViewItem option)
new QRect	TextRectangle (QPainter painter, QRect rect, QFont font, string text)
Protected Member Functions inherited from QtGui.QAbstractItemDelegate
	QAbstractItemDelegate (System.Type dummy)
new void	OnCloseEditor (QWidget editor, QAbstractItemDelegate.EndEditHint hint=QAbstractItemDelegate.EndEditHint.NoHint)
new void	OnCommitData (QWidget editor)
new void	OnSizeHintChanged (QModelIndex arg1)
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
new QItemEditorFactory	ItemEditorFactory [get, set]
new bool	Clipping [get, set]
static new QMetaObject	StaticMetaObject [get]
new IQItemDelegateSignals	Emit [get]
Properties inherited from QtGui.QAbstractItemDelegate
Slot< QWidget >	CommitData
Slot< QWidget, QAbstractItemDelegate.EndEditHint >	CloseEditor
Slot< QWidget >	CloseEditorEditor
Slot< QModelIndex >	SizeHintChanged
static new QMetaObject	StaticMetaObject [get]
new IQAbstractItemDelegateSignals	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
Public Types inherited from QtGui.QAbstractItemDelegate
enum	EndEditHint {   EditNextItem = 1, EditPreviousItem = 2, NoHint = 0, RevertModelCache = 4,   SubmitModelCache = 3 }
	More...
Protected Attributes inherited from QtCore.QObject
object	Q_EMIT = null
SmokeInvocation	interceptor
readonly List< QEventHandler >	eventFilters = new List<QEventHandler>()

Detailed Description

The QItemDelegate class provides display and editing facilities for data items from a model.

QItemDelegate can be used to provide custom display features and editor widgets for item views based on QAbstractItemView subclasses. Using a delegate for this purpose allows the display and editing mechanisms to be customized and developed independently from the model and view.

The QItemDelegate class is one of the Model/View Classes and is part of Qt's model/view framework. Note that QStyledItemDelegate has taken over the job of drawing Qt's item views. We recommend the use of QStyledItemDelegate when creating new delegates.

When displaying items from a custom model in a standard view, it is often sufficient to simply ensure that the model returns appropriate data for each of the roles that determine the appearance of items in views. The default delegate used by Qt's standard views uses this role information to display items in most of the common forms expected by users. However, it is sometimes necessary to have even more control over the appearance of items than the default delegate can provide.

This class provides default implementations of the functions for painting item data in a view and editing data from item models. Default implementations of the paint() and sizeHint() virtual functions, defined in QAbstractItemDelegate, are provided to ensure that the delegate implements the correct basic behavior expected by views. You can reimplement these functions in subclasses to customize the appearance of items.

When editing data in an item view, QItemDelegate provides an editor widget, which is a widget that is placed on top of the view while editing takes place. Editors are created with a QItemEditorFactory; a default static instance provided by QItemEditorFactory is installed on all item delegates. You can set a custom factory using setItemEditorFactory() or set a new default factory with QItemEditorFactory::setDefaultFactory(). It is the data stored in the item model with the Qt::EditRole that is edited.

Only the standard editing functions for widget-based delegates are reimplemented here:

createEditor() returns the widget used to change data from the model and can be reimplemented to customize editing behavior.

setEditorData() provides the widget with data to manipulate.

updateEditorGeometry() ensures that the editor is displayed correctly with respect to the item view.

setModelData() returns updated data to the model.

The closeEditor() signal indicates that the user has completed editing the data, and that the editor widget can be destroyed.

Standard Roles and Data Types

The default delegate used by the standard views supplied with Qt associates each standard role (defined by Qt::ItemDataRole) with certain data types. Models that return data in these types can influence the appearance of the delegate as described in the following table.

RoleAccepted Types

Qt::BackgroundRole QBrush

Qt::BackgroundColorRole QColor (obsolete; use Qt::BackgroundRole instead)

Qt::CheckStateRole Qt::CheckState

Qt::DecorationRole QIcon, QPixmap and QColor

Qt::DisplayRole QString and types with a string representation

Qt::EditRole See QItemEditorFactory for details

Qt::FontRole QFont

Qt::SizeHintRole QSize

Qt::TextAlignmentRole Qt::Alignment

Qt::ForegroundRole QBrush

Qt::TextColorRole QColor (obsolete; use Qt::ForegroundRole instead)

If the default delegate does not allow the level of customization that you need, either for display purposes or for editing data, it is possible to subclass QItemDelegate to implement the desired behavior.

Subclassing

When subclassing QItemDelegate to create a delegate that displays items using a custom renderer, it is important to ensure that the delegate can render items suitably for all the required states; e.g. selected, disabled, checked. The documentation for the paint() function contains some hints to show how this can be achieved.

You can provide custom editors by using a QItemEditorFactory. The Color Editor Factory Example shows how a custom editor can be made available to delegates with the default item editor factory. This way, there is no need to subclass QItemDelegate. An alternative is to reimplement createEditor(), setEditorData(), setModelData(), and updateEditorGeometry(). This process is described in the Spin Box Delegate Example.

QStyledItemDelegate vs. QItemDelegate

Since Qt 4.4, there are two delegate classes: QItemDelegate and QStyledItemDelegate. However, the default delegate is QStyledItemDelegate. These two classes are independent alternatives to painting and providing editors for items in views. The difference between them is that QStyledItemDelegate uses the current style to paint its items. We therefore recommend using QStyledItemDelegate as the base class when implementing custom delegates or when working with Qt style sheets. The code required for either class should be equal unless the custom delegate needs to use the style for drawing.

See also Delegate Classes, QStyledItemDelegate, QAbstractItemDelegate, Spin Box Delegate Example, Settings Editor Example, and Icons Example.

Constructor & Destructor Documentation

QtGui.QItemDelegate.QItemDelegate ( System.Type  dummy )

protected

QtGui.QItemDelegate.QItemDelegate

(

QObject

parent = null

)

Constructs an item delegate with the given parent.

Member Function Documentation

new QRect QtGui.QItemDelegate.Check ( QStyleOptionViewItem  option, QRect  bounding, object  variant  )

protected

override QWidget QtGui.QItemDelegate.CreateEditor ( QWidget  parent, QStyleOptionViewItem  option, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::createEditor().

Returns the widget used to edit the item specified by index for editing. The parent widget and style option are used to control how the editor widget appears.

See also QAbstractItemDelegate::createEditor().

Reimplemented from QtGui.QAbstractItemDelegate.

Reimplemented in QtSql.QSqlRelationalDelegate.

override void QtGui.QItemDelegate.CreateProxy ( )

virtual

Reimplemented from QtGui.QAbstractItemDelegate.

Reimplemented in QtSql.QSqlRelationalDelegate.

new QPixmap QtGui.QItemDelegate.Decoration ( QStyleOptionViewItem  option, object  variant  )

protected

new void QtGui.QItemDelegate.Dispose

(

)

new void QtGui.QItemDelegate.DoLayout ( QStyleOptionViewItem  option, QRect  checkRect, QRect  iconRect, QRect  textRect, bool  hint  )

protected

new void QtGui.QItemDelegate.DrawBackground ( QPainter  painter, QStyleOptionViewItem  option, QModelIndex  index  )

protected

Renders the item background for the given index, using the given painter and style option.

This function was introduced in Qt 4.2.

virtual void QtGui.QItemDelegate.DrawCheck ( QPainter  painter, QStyleOptionViewItem  option, QRect  rect, Qt.CheckState  state  )

protectedvirtual

Renders a check indicator within the rectangle specified by rect, using the given painter and style option, using the given state.

virtual void QtGui.QItemDelegate.DrawDecoration ( QPainter  painter, QStyleOptionViewItem  option, QRect  rect, QPixmap  pixmap  )

protectedvirtual

Renders the decoration pixmap within the rectangle specified by rect using the given painter and style option.

virtual void QtGui.QItemDelegate.DrawDisplay ( QPainter  painter, QStyleOptionViewItem  option, QRect  rect, string  text  )

protectedvirtual

Renders the item view text within the rectangle specified by rect using the given painter and style option.

virtual void QtGui.QItemDelegate.DrawFocus ( QPainter  painter, QStyleOptionViewItem  option, QRect  rect  )

protectedvirtual

Renders the region within the rectangle specified by rect, indicating that it has the focus, using the given painter and style option.

override bool QtGui.QItemDelegate.EventFilter	(	QObject @	object,
		QEvent @	event
	)

Reimplemented from QObject::eventFilter().

Returns true if the given editor is a valid QWidget and the given event is handled; otherwise returns false. The following key press events are handled by default:

Tab

Backtab

Enter

Return

Esc

In the case of Tab, Backtab, Enter and Return key press events, the editor's data is comitted to the model and the editor is closed. If the event is a Tab key press the view will open an editor on the next item in the view. Likewise, if the event is a Backtab key press the view will open an editor on the previous item in the view.

If the event is a Esc key press event, the editor is closed without committing its data.

See also commitData() and closeEditor().

override bool QtGui.QItemDelegate.OnEditorEvent ( QEvent @  event, QAbstractItemModel  model, QStyleOptionViewItem  option, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::editorEvent().

Reimplemented from QtGui.QAbstractItemDelegate.

override void QtGui.QItemDelegate.Paint ( QPainter  painter, QStyleOptionViewItem  option, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::paint().

Renders the delegate using the given painter and style option for the item specified by index.

When reimplementing this function in a subclass, you should update the area held by the option's rect variable, using the option's state variable to determine the state of the item to be displayed, and adjust the way it is painted accordingly.

For example, a selected item may need to be displayed differently to unselected items, as shown in the following code:

if (option.state & QStyle::State_Selected)

painter->fillRect(option.rect, option.palette.highlight());

int size = qMin(option.rect.width(), option.rect.height());

int brightness = index.model()->data(index, Qt::DisplayRole).toInt();

double radius = (size/2.0) - (brightness/255.0 * size/2.0);

if (radius == 0.0)

return;

painter->save();

painter->setRenderHint(QPainter::Antialiasing, true);

painter->setPen(Qt::NoPen);

if (option.state & QStyle::State_Selected)

painter->setBrush(option.palette.highlightedText());

else

...

After painting, you should ensure that the painter is returned to its the state it was supplied in when this function was called. For example, it may be useful to call QPainter::save() before painting and QPainter::restore() afterwards.

See also QStyle::State.

Implements QtGui.QAbstractItemDelegate.

new QRect QtGui.QItemDelegate.Rect ( QStyleOptionViewItem  option, QModelIndex  index, int  role  )

protected

new QPixmap QtGui.QItemDelegate.Selected ( QPixmap  pixmap, QPalette  palette, bool  enabled  )

protected

override void QtGui.QItemDelegate.SetEditorData ( QWidget  editor, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::setEditorData().

Sets the data to be displayed and edited by the editor from the data model item specified by the model index.

The default implementation stores the data in the editor widget's user property.

See also QMetaProperty::isUser().

Reimplemented from QtGui.QAbstractItemDelegate.

Reimplemented in QtSql.QSqlRelationalDelegate.

override void QtGui.QItemDelegate.SetModelData ( QWidget  editor, QAbstractItemModel  model, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::setModelData().

Gets data from the editor widget and stores it in the specified model at the item index.

The default implementation gets the value to be stored in the data model from the editor widget's user property.

See also QMetaProperty::isUser().

Reimplemented from QtGui.QAbstractItemDelegate.

Reimplemented in QtSql.QSqlRelationalDelegate.

new QStyleOptionViewItem QtGui.QItemDelegate.SetOptions ( QModelIndex  index, QStyleOptionViewItem  option  )

protected

override QSize QtGui.QItemDelegate.SizeHint ( QStyleOptionViewItem  option, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::sizeHint().

Returns the size needed by the delegate to display the item specified by index, taking into account the style information provided by option.

When reimplementing this function, note that in case of text items, QItemDelegate adds a margin (i.e. 2 * QStyle::PM_FocusFrameHMargin) to the length of the text.

Implements QtGui.QAbstractItemDelegate.

new QRect QtGui.QItemDelegate.TextRectangle ( QPainter  painter, QRect  rect, QFont  font, string  text  )

protected

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

static

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

static

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

static

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

static

override void QtGui.QItemDelegate.UpdateEditorGeometry ( QWidget  editor, QStyleOptionViewItem  option, QModelIndex  index  )

virtual

Reimplemented from QAbstractItemDelegate::updateEditorGeometry().

Updates the editor for the item specified by index according to the style option given.

Reimplemented from QtGui.QAbstractItemDelegate.

Property Documentation

new bool QtGui.QItemDelegate.Clipping

getset

This property holds if the delegate should clip the paint events.

This property will set the paint clip to the size of the item. The default value is on. It is useful for cases such as when images are larger than the size of the item.

This property was introduced in Qt 4.2.

new IQItemDelegateSignals QtGui.QItemDelegate.Emit

getprotected

new QItemEditorFactory QtGui.QItemDelegate.ItemEditorFactory

getset

Returns the editor factory used by the item delegate. If no editor factory is set, the function will return null.

Sets the editor factory to be used by the item delegate to be the factory specified. If no editor factory is set, the item delegate will use the default editor factory.

new QMetaObject QtGui.QItemDelegate.StaticMetaObject

staticget