I want to change the background color of my custom widget depending on the state of some property, but I want the widget to still be stylable using stylesheets. I understand that I should use QStylePainter in paintEvent, but I can't figure out which draw method to use (I must be stupid).

Qt Code: 
  1. void MyWidget::paintEvent(QPaintEvent *)
  2. {
  3.     QStylePainter painter(this);
  4.  
  5.     QStyleOption option;
  6.     option.initFrom(this);
  7.  
  8.     QColor color;
  9.     switch (this->m_someProperty) {
  10.     case 0:
  11.         color = QColor::fromRgb(255, 255, 255);
  12.         break;
  13.     case 1:
  14.         color = QColor::fromRgb(211, 211, 211);
  15.         break;
  16.     }
  17.  
  18.     painter. //What to use here?
  19. }
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Thanks.