Workaround for Qwidget direct derived class style sheet does not work

derive a window from Qwidget, use stylesheet to set the background, you can see the effect in the designer, after the compilation runs, there is no background. The reason is simple, Qwidget's paintevent () is empty, and the stylesheet is drawn to the window through Paint , and we need to re-write the PaintEvent () function in order to actually implement the inheritance.

. h file//Add paintevent () Declaration protected:void PaintEvent (qpaintevent *); Rewrite PaintEvent ()

. cpp file, if the class name is widget//rewrite paintevent () void Widget::p aintevent (qpaintevent *) {qstyleoption opt;opt.init (this); Qpainter p (this); Style ()->drawprimitive (qstyle::P e_widget, &opt, &p, this);}

Translated from: http://blog.csdn.net/dbzhang800

Workaround for Qwidget direct derived class style sheet does not work