QGraphicsOpacityEffect ¶

概要 ¶

详细描述 ¶

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() 函数。

默认情况下，不透明度是 0.7。

另请参阅

QGraphicsDropShadowEffect QGraphicsBlurEffect QGraphicsColorizeEffect

class QGraphicsOpacityEffect ( [ parent=None ] ) ¶

param parent

QObject

构造新 QGraphicsOpacityEffect instance. The parent 参数会被传递给 QGraphicsEffect ‘s constructor.

PySide2.QtWidgets.QGraphicsOpacityEffect. opacity ( ) ¶

返回类型

qreal

另请参阅

setOpacity()

PySide2.QtWidgets.QGraphicsOpacityEffect. opacityChanged ( opacity ) ¶

参数

opacity – qreal

PySide2.QtWidgets.QGraphicsOpacityEffect. opacityMask ( ) ¶

返回类型

QBrush

另请参阅

setOpacityMask()

PySide2.QtWidgets.QGraphicsOpacityEffect. opacityMaskChanged ( mask ) ¶

参数

mask – QBrush

PySide2.QtWidgets.QGraphicsOpacityEffect. setOpacity ( opacity ) ¶

参数

opacity – qreal

另请参阅

opacity()

PySide2.QtWidgets.QGraphicsOpacityEffect. setOpacityMask ( mask ) ¶

参数

mask – QBrush

另请参阅

opacityMask()