- painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
- painter.fillRect(margin, 0, width() - 2 * margin, height(), Qt::black);
+ on_pixmap = QPixmap(width(), height());
+ QPainter on_painter(&on_pixmap);
+ on_painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
+ draw_vu_meter(on_painter, -HUGE_VAL, HUGE_VAL, width(), height(), margin);
+
+ off_pixmap = QPixmap(width(), height());
+ QPainter off_painter(&off_pixmap);
+ off_painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
+ draw_vu_meter(off_painter, -HUGE_VAL, -HUGE_VAL, width(), height(), margin);
+}