On Saturday 21 February 2009, Toussis Manolis wrote: > Thank you very much on answering my question. > > On Saturday 21 February 2009 18:34:27 Aaron J. Seigo wrote: > > On Saturday 21 February 2009, Toussis Manolis wrote: > > > I want to add some effect to an applet > > > > what effect are you trying to achieve? because while you ask how to get a > > pixmap of your widget, depending on what effect you are trying to achieve > > that may not be what you actually want to be doing. > > I was thinking of implementing a fadout effect of the old snapshot of the > applet. > I need the QPixmap to draw it with Opacity degrading from 1.0 to 0.0 ...
QGraphicsItem::setOpacity(qreal) an easy way to achieve what you want is to implement the contents of your applet as a QGraphicsWidget subclass (rather than painting directly into your applet). make this child item non-movable and set its size to be the same as your widget (can be done on SizeConstraint in constraintsEvent, or you can override resizeEvent but be sure to call Applet::resizeEvent in that case!). then have two of these items; when doing the transition, show both but one with a high opacity and the other with a the inverse value and adjust the opacity on both. finally, hide or delete the one that is "going away". voila. -- Aaron J. Seigo humru othro a kohnu se GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA EE75 D6B7 2EB1 A7F1 DB43 KDE core developer sponsored by Qt Software
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