qgraphicseffect

问题 While Qt provides the QGraphicsDropShadowEffect, there's no "Neumorphism" effect available: In css there is the box-shadow property (that's how it's done in the image above), which can have multiple colors, but Qt lacks support for that property, and it's not possible to apply more than one graphics effect at once. Can this be done? 回答1: The solution is to create a custom subclass of QGraphicsEffect and using gradients. At first I thought about following the same concept used for CSS,

问题 I have been trying to create a basic QGraphicsEffect to change the colors of the widget, but first I tried to make an effect that does nothing like so: class QGraphicsSepiaEffect(QtWidgets.QGraphicsEffect): def draw(painter): pixmap = sourcePixmap() painter.drawPixmap(pixmap.rect(), pixmap) I am using PySide2. Though I checked all over the internet but couldn't find any sample, neither a template nor a real custom effect. How can I write a basic effect to alter the colors of my widget? 回答1:

问题 I have been trying to create a basic QGraphicsEffect to change the colors of the widget, but first I tried to make an effect that does nothing like so: class QGraphicsSepiaEffect(QtWidgets.QGraphicsEffect): def draw(painter): pixmap = sourcePixmap() painter.drawPixmap(pixmap.rect(), pixmap) I am using PySide2. Though I checked all over the internet but couldn't find any sample, neither a template nor a real custom effect. How can I write a basic effect to alter the colors of my widget? 回答1: