QGraphicsBlurEffect

Note

This class was introduced in Qt 4.6

Synopsis

Functions

• def blurHints ()
• def blurRadius ()

Slots

• def setBlurHints (hints)
• def setBlurRadius (blurRadius)

Signals

• def blurHintsChanged (hints)
• def blurRadiusChanged (blurRadius)

Detailed Description

The PySide.QtGui.QGraphicsBlurEffect class provides a blur effect.

A blur effect blurs the source. This effect is useful for reducing details, such as when the source loses focus and you want to draw attention to other elements. The level of detail can be modified using the PySide.QtGui.QGraphicsBlurEffect.setBlurRadius() function. Use PySide.QtGui.QGraphicsBlurEffect.setBlurHints() to choose the blur hints.

By default, the blur radius is 5 pixels. The blur radius is specified in device coordinates.

See also

PySide.QtGui.QGraphicsDropShadowEffect PySide.QtGui.QGraphicsColorizeEffect PySide.QtGui.QGraphicsOpacityEffect

class PySide.QtGui.QGraphicsBlurEffect([parent=None])

Parameters:parent – PySide.QtCore.QObject

Constructs a new PySide.QtGui.QGraphicsBlurEffect instance. The parent parameter is passed to PySide.QtGui.QGraphicsEffect ‘s constructor.

PySide.QtGui.QGraphicsBlurEffect.BlurHint

This enum describes the possible hints that can be used to control how blur effects are applied. The hints might not have an effect in all the paint engines.

Constant	Description
QGraphicsBlurEffect.PerformanceHint	Indicates that rendering performance is the most important factor, at the potential cost of lower quality.
QGraphicsBlurEffect.QualityHint	Indicates that rendering quality is the most important factor, at the potential cost of lower performance.
QGraphicsBlurEffect.AnimationHint	Indicates that the blur radius is going to be animated, hinting that the implementation can keep a cache of blurred verisons of the source. Do not use this hint if the source is going to be dynamically changing.

See also

PySide.QtGui.QGraphicsBlurEffect.blurHints() PySide.QtGui.QGraphicsBlurEffect.setBlurHints()

PySide.QtGui.QGraphicsBlurEffect.blurHints()

Return type:PySide.QtGui.QGraphicsBlurEffect.BlurHints

This property holds the blur hint of the effect..

Use the PerformanceHint hint to say that you want a faster blur, the QualityHint hint to say that you prefer a higher quality blur, or the AnimationHint when you want to animate the blur radius.

By default, the blur hint is PerformanceHint .

PySide.QtGui.QGraphicsBlurEffect.blurHintsChanged(hints)

Parameters:hints – PySide.QtGui.QGraphicsBlurEffect.BlurHints

PySide.QtGui.QGraphicsBlurEffect.blurRadius()

Return type:PySide.QtCore.qreal

This property holds the blur radius of the effect..

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

By default, the blur radius is 5 pixels.

The radius is given in device coordinates, meaning it is unaffected by scale.

PySide.QtGui.QGraphicsBlurEffect.blurRadiusChanged(blurRadius)

Parameters:blurRadius – PySide.QtCore.qreal

PySide.QtGui.QGraphicsBlurEffect.setBlurHints(hints)

Parameters:hints – PySide.QtGui.QGraphicsBlurEffect.BlurHints

This property holds the blur hint of the effect..

Use the PerformanceHint hint to say that you want a faster blur, the QualityHint hint to say that you prefer a higher quality blur, or the AnimationHint when you want to animate the blur radius.

By default, the blur hint is PerformanceHint .

PySide.QtGui.QGraphicsBlurEffect.setBlurRadius(blurRadius)

Parameters:blurRadius – PySide.QtCore.qreal

This property holds the blur radius of the effect..

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

By default, the blur radius is 5 pixels.

The radius is given in device coordinates, meaning it is unaffected by scale.