Contents

• Properties
• Public Functions
• Reimplemented Public Functions
• Public Slots
• Signals
• Reimplemented Protected Functions
• Detailed Description

Detailed Description

TheQGraphicsDropShadowEffect class provides a drop shadow effect.

A drop shadow effect renders the source with a drop shadow. The color of the drop shadow can be modified using thesetColor() function. The drop shadow offset can be modified using thesetOffset() function and the blur radius of the drop shadow can be changed with thesetBlurRadius() function.

By default, the drop shadow is a semi-transparent dark gray (QColor(63, 63, 63, 180)) shadow, blurred with a radius of 1 at an offset of 8 pixels towards the lower right. The drop shadow offset is specified in device coordinates.

Property Documentation

blurRadius :qreal

This property holds the blur radius in pixels of the drop shadow.

Using a smaller radius results in a sharper shadow, whereas using a bigger radius results in a more blurred shadow.

By default, the blur radius is 1 pixel.

Access functions:

Notifier signal:

See alsocolor(),offset(), and ..

color :QColor

This property holds the color of the drop shadow.

By default, the drop color is a semi-transparent dark gray (QColor(63, 63, 63, 180)).

Access functions:

Notifier signal:

See alsooffset() andblurRadius().

offset :QPointF

This property holds the shadow offset in pixels.

By default, the offset is 8 pixels towards the lower right.

The offset is given in device coordinates, which means it is unaffected by scale.

Access functions:

Notifier signal:

See alsoxOffset(),yOffset(),blurRadius(), andcolor().

xOffset :qreal

This property holds the horizontal shadow offset in pixels.

By default, the horizontal shadow offset is 8 pixels.

Access functions:

Notifier signal:

See alsoyOffset() andoffset().

yOffset :qreal

This property holds the vertical shadow offset in pixels.

By default, the vertical shadow offset is 8 pixels.

Access functions:

Notifier signal:

See alsoxOffset() andoffset().

Member Function Documentation

QGraphicsDropShadowEffect::QGraphicsDropShadowEffect(QObject * parent = 0)

Constructs a newQGraphicsDropShadowEffect instance. Theparent parameter is passed toQGraphicsEffect's constructor.

QGraphicsDropShadowEffect::~QGraphicsDropShadowEffect()

Destroys the effect.

[virtual]QRectF QGraphicsDropShadowEffect::boundingRectFor(constQRectF & rect) const

Reimplemented fromQGraphicsEffect::boundingRectFor().

[virtual protected]void QGraphicsDropShadowEffect::draw(QPainter * painter)

Reimplemented fromQGraphicsEffect::draw().