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QtGui.QGraphicsOpacityEffect Class Reference

The QGraphicsOpacityEffect class provides an opacity effect. More...

Inheritance diagram for QtGui.QGraphicsOpacityEffect:
Inheritance graph
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Collaboration diagram for QtGui.QGraphicsOpacityEffect:
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Public Member Functions

 QGraphicsOpacityEffect (QObject parent=null)
 
 
override void CreateProxy ()
 
new double opacity ()
 
new void Dispose ()
 
- Public Member Functions inherited from QtGui.QGraphicsEffect
 QGraphicsEffect (QObject parent=null)
 
 
new QRectF BoundingRect ()
 
 
virtual QRectF BoundingRectFor (QRectF sourceRect)
 
 
new void Update ()
 
 
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.QGraphicsEffect
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

 QGraphicsOpacityEffect (System.Type dummy)
 
override void Draw (QPainter painter)
 
 
new void OnOpacityChanged (double opacity)
 
 
new void OnOpacityMaskChanged (QBrush mask)
 
 
- Protected Member Functions inherited from QtGui.QGraphicsEffect
 QGraphicsEffect (System.Type dummy)
 
new void DrawSource (QPainter painter)
 
 
new void OnEnabledChanged (bool enabled)
 
 
new QRectF SourceBoundingRect (Qt.CoordinateSystem system=Qt.CoordinateSystem.LogicalCoordinates)
 
 
virtual void SourceChanged (QGraphicsEffect.ChangeFlag flags)
 
 
new bool SourceIsPixmap ()
 
 
new QPixmap SourcePixmap (Qt.CoordinateSystem system=Qt.CoordinateSystem.LogicalCoordinates, QPoint offset=null, QGraphicsEffect.PixmapPadMode mode=QGraphicsEffect.PixmapPadMode.PadToEffectiveBoundingRect)
 
 
new void UpdateBoundingRect ()
 
 
- 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< System.Double > OpacityChanged
 
 
Slot< QBrush > OpacityMaskChanged
 
 
new double Opacity [get, set]
 
 
new QBrush OpacityMask [get, set]
 
 
static new QMetaObject StaticMetaObject [get]
 
new IQGraphicsOpacityEffectSignals Emit [get]
 
- Properties inherited from QtGui.QGraphicsEffect
Slot< System.Boolean > EnabledChanged
 
 
new bool Enabled [get, set]
 
 
static new QMetaObject StaticMetaObject [get]
 
new IQGraphicsEffectSignals 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.QGraphicsEffect
enum  ChangeFlag { SourceAttached = 1, SourceBoundingRectChanged = 4, SourceDetached = 2, SourceInvalidated = 8 }
  More...
 
enum  PixmapPadMode { NoPad = 0, PadToEffectiveBoundingRect = 2, PadToTransparentBorder = 1 }
  More...
 
- Protected Attributes inherited from QtCore.QObject
object Q_EMIT = null
 
SmokeInvocation interceptor
 
readonly List< QEventHandler > eventFilters = new List<QEventHandler>()
 

Detailed Description

The QGraphicsOpacityEffect class provides an opacity effect.

An opacity effect renders the source with an opacity. This effect is useful for making the source semi-transparent, similar to a fade-in/fade-out sequence. The opacity can be modified using the setOpacity() function.

By default, the opacity is 0.7.

See also QGraphicsDropShadowEffect, QGraphicsBlurEffect, and QGraphicsColorizeEffect.

Constructor & Destructor Documentation

QtGui.QGraphicsOpacityEffect.QGraphicsOpacityEffect ( System.Type  dummy)
protected
QtGui.QGraphicsOpacityEffect.QGraphicsOpacityEffect ( QObject  parent = null)

Constructs a new QGraphicsOpacityEffect instance. The parent parameter is passed to QGraphicsEffect's constructor.

Member Function Documentation

override void QtGui.QGraphicsOpacityEffect.CreateProxy ( )
virtual

Reimplemented from QtGui.QGraphicsEffect.

new void QtGui.QGraphicsOpacityEffect.Dispose ( )
override void QtGui.QGraphicsOpacityEffect.Draw ( QPainter  painter)
protectedvirtual

Reimplemented from QGraphicsEffect::draw().

Implements QtGui.QGraphicsEffect.

new void QtGui.QGraphicsOpacityEffect.OnOpacityChanged ( double  opacity)
protected

This signal is emitted whenever the effect's opacity changes. The opacity parameter holds the effect's new opacity.

new void QtGui.QGraphicsOpacityEffect.OnOpacityMaskChanged ( QBrush  mask)
protected

This signal is emitted whenever the effect's opacity mask changes. The mask parameter holds the effect's new opacity mask.

new double QtGui.QGraphicsOpacityEffect.opacity ( )
static string QtGui.QGraphicsOpacityEffect.Tr ( string  s,
string  c = null 
)
static
static string QtGui.QGraphicsOpacityEffect.Tr ( string  s,
string  c,
int  n 
)
static
static string QtGui.QGraphicsOpacityEffect.TrUtf8 ( string  s,
string  c = null 
)
static
static string QtGui.QGraphicsOpacityEffect.TrUtf8 ( string  s,
string  c,
int  n 
)
static

Property Documentation

new IQGraphicsOpacityEffectSignals QtGui.QGraphicsOpacityEffect.Emit
getprotected
new double QtGui.QGraphicsOpacityEffect.Opacity
getset

This property holds the opacity of the effect.

The value should be in the range of 0.0 to 1.0, where 0.0 is fully transparent and 1.0 is fully opaque.

By default, the opacity is 0.7.

Slot<System.Double> QtGui.QGraphicsOpacityEffect.OpacityChanged
addremove

This signal is emitted whenever the effect's opacity changes. The opacity parameter holds the effect's new opacity.

new QBrush QtGui.QGraphicsOpacityEffect.OpacityMask
getset

This property holds the opacity mask of the effect.

An opacity mask allows you apply opacity to portions of an element.

For example:

...

QLinearGradient alphaGradient(rect.topLeft(), rect.bottomLeft());

alphaGradient.setColorAt(0.0, Qt::transparent);

alphaGradient.setColorAt(0.5, Qt::black);

alphaGradient.setColorAt(1.0, Qt::transparent);

QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect;

effect->setOpacityMask(alphaGradient);

...

There is no opacity mask by default.

Slot<QBrush> QtGui.QGraphicsOpacityEffect.OpacityMaskChanged
addremove

This signal is emitted whenever the effect's opacity mask changes. The mask parameter holds the effect's new opacity mask.

new QMetaObject QtGui.QGraphicsOpacityEffect.StaticMetaObject
staticget